HomeMy WebLinkAboutShoreline Monitoring Southold Town Line to Horton Point 1999 SHORELINE MONITORING
SOUTHOLD TOWN LINE TO HORTON POINT
Fall 1998 = Spring 1999
for
TOWN OF SOUTHOLD, NEW YORK
TOWN HALL, 53095 MAIN ROAD
SOUTHOLD, NEW YORK 11971
by
OFFSHORE & COASTAL TECHNOLOGIES,_ INC: EAST COAST .
Engineering for the Marine Environment
P.O. Box 1368
Chadds Ford, Pennsylvania 19317
Tel: (610) 361-0424 Fax: (610) 361-0425
15 October 1999
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OFFSHORE & COASTAL TECHNOLOGIES, INC. - EAST COAST
Engineering for the Marine Environment
P.O. Bog 1368
Chadds Ford, Pennsylvania 19317
Tel: (610)361-0424 Fax: (610)361-0425
Shoreline Monitoring
Southold Town Line to Horton Point
Fall 1998 - Spring 1999
1. Executive Summary 1
2. Introduction 2
3. Monumentation 3
3.1 Monument Locations 3
4. Transect Surveys 17
4.1 Methodology 17
5. Bathymetric Survey of Goldsmith Inlet Region 18
6. Aerial Photography 19
7. Beach Morphology 20
8. Preliminary Regional Sediment Budget 23
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OFFSHORE & COASTAL TECHNOLOGIES, INC. - EAST COAST
Engineering for the Marine Environment
P.O. Bog 1368
Chadds Ford, Pennsylvania 19317
Tel: (610)361-0424 Fax: (610) 361-0425
Shoreline Monitoring
Southold Town Line to Horton Point
Fall 1998- Spring 1999
1.Executive Summary
Offshore&Coastal Technologies,Inc. -East Coast was contracted by the Town of Southold,New
York to carry out beach profile surveys along the Town shoreline and a bathymetric survey of the Goldsmith
Inlet offshore area in Fall 1998. Beach profile surveys were also performed in Spring of 1999. The purpose
of the surveys are to monitor changes in the beaches and to estimate longer term changes in the Goldsmith
Inlet area. Field work was conducted and all data were collected and plotted. Aerial photography was
acquired in May 1999.
The physical data were used to develop profile diagrams,bathymetric survey and difference maps,a
beach morphology map and a preliminary sediment budget. It is recommended that further data be
developed to supplement the preliminary sediment budget in order to reduce uncertainties and help to solve
for unknown sources and sinks of beach material.
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2.Introduction
The project was completed by Offshore&Coastal Technologies,Inc. -East Coast for the Town of
Southold,New York under an agreement made on July 21, 1998. The work presented was performed for the
Town as part of its shoreline erosion monitoring and analysis program between.the Town line and Horton
Point. Specifically,OCTI was contracted to perform the following:
♦ Fall 1998 beach profile survey from Duck Pond Point to Horton Point
♦ Spring 1999 beach profile survey from the western Town line to Horton Point
♦ Develop survey profile diagrams
♦ Acquire aerial photography in Spring 1999
♦ Perform a Fall 1998 bathymetric survey near Goldsmith Inlet
♦ Develop map of the bathymetric survey
♦ Develop a difference map between the bathymetric survey and.a 1996 survey
♦ Develop a beach morphology map
♦ Attempt to correlate morphology and sediment size
♦ Develop a preliminary sediment budget
The final objective is to add physical data and ongoing analysis to the level of understanding of coastal
processes along the Southold town shoreline.
The analyses presented in this report are based upon physical data collected during the 1998-99
monitoring program performed by OCTI for the Town of Southold. The program has provided beach
profiles and bathymetry for the time period and insight into the physical characteristics of the area and
changes that occurred during that one particular year of elapsed time. This level of knowledge has provided
valuable information about the variation in conditions over the Town shoreline and the types of changes that
can occur in a one-year period. However,the brief nature of the monitoring program is also its major
drawback. The long term and seasonal variations in the shoreline cannot be estimated based upon this data
alone. The third year of the program would have provided some idea of the annual variation in volume
changes. Thus,uncertainties in the analyses presented in this report due to natural variability or long term
trends cannot be estimated accurately either. The only quantitative,three-dimensional,method of estimating
variability,trends and accuracies is through continued field beach profile surveys. In lieu of such surveys,
the applications of this data to sediment budgets and future shoreline response could be extended in a less
costly but simplified sense using other existing data sources. Possible data sources could be archived aerial
photography,meteorological records(which can be used to develop hindcasts of wave events),water level
measurements and digitized shoreline positions.
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3.Monumentation
3.1 Monument Locations
Monuments were established along the shoreline in February and March of 1998 for use in
conducting subsequent profile surveys. The shoreline was broken into four reaches for purposes of profile
notation. Reach A runs from the west side of Mattituck Inlet to the town line;Reach C runs from the east
side of Mattituck Inlet to Duck Pond Point;Reach E runs from Duck Pond Point to the west side of
Goldsmith Inlet,and Reach F runs from the east side of Goldsmith Inlet to Horton Point(reach designations
of B and D were not used due to modifications to the nomenclature after reach layout had began). Each
profile was defined according to two monuments placed in line with the profile azimuth. The azimuth was
established perpendicular to an average shoreline orientation over an entire reach,except for previously
defined profiles which had been placed approximately perpendicular to the local shoreline by the New York
State Department of State. The newly established profiles were kept perpendicular to the average shoreline
orientation to keep profile lines from crossing offshore and to keep the profiles approximately perpendicular
to the offshore contours.
The beach profiles were required to be established according to some general guidelines as follows.
Beginning at Mattituck Inlet,one profile was established about 100 feet west of the western jetty and
additional profiles were established about every 500 feet for 4000 feet to the west,after which profiles were
established about every 1000 feet to the west to the town line. Another profile was established 100 feet east
of the eastern jetty at Mattituck Inlet,with additional profiles located every 500 feet for 5500 feet to the east,
after which profiles were established every 1000 feet for 9000 feet to Duck Pond Point. From Duck Pond
Point to Horton Point,profiles were located every 1000 feet beginning at Duck Pond Point for a distance of
12000 feet east to near Peconic. Profiles were then located at 500 foot spacing from Peconic for a distance
of 12500 feet eastward to the east side of McCabe's Beach. Two additional profiles were located at 1000
foot spacing east to Horton Point.
The general guidelines for longshore spacing were adjusted in the field to avoid stairways where
residents are likely to walk,keep monuments between buildings and on property lines where possible,and to
incorporate fifteen pre-existing monuments established by the Department of State into the monument
spacing pattern. The following table presents the locations of the primary profile monuments,which are
used as the origin points for beach profiles and any two-dimensional plots. This is the reference location to
which all future profiles should be referenced so that future profiles can be accurately compared with past
profiles,even if missing profile monuments are replaced in a slightly different location.
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Table 3.1 PROFILE ORIGIN LOCATIONS (NAD83,LONG ISLAND LAMBERT)
PROFILE NORTHING EASTING AZIMUTH
Al 311950.21 1381622.65 325
A2 311587.13 1381278.86 325
A3 311216.43 1381003.03 325
A4 310764.49 1380718.13 325
A5 310388.75 1380405.25 325
A6 309985.89 1380076.57 325
A7 309618.75 1379735.03 325
A8 309284.52 1379357.69 325
A9 308960.46 1378965.51 325
A10 308336.47 1378167.67 325
All 307689.75 1377397.63 325
Al2 307086.10 1376588.81 325
A13 306498.55 1375767.70 325
A14 305939.84 1374923.93 325
A15 305430.43 1373971.24 325
A16 304965.61 1373125.11 325
C1 311965.68 1382353.75 320
C2 312182.28 1382804.33 320
C3 312489.95 1383205.33 320
C4 .312883.12 1383540.49 320
C5 313268.81 1383870.79 320
C6 313695.59 1384230.66 320
C7 314034.52 1384526.10 320
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C8 314307.53 1384901.02 320
C9 314622.16 1385343.78 320
C10 314958.88 1385739.80 320
C 11 315352.44 1386032.91 320
C12 315690.91 1386400.47 320
C13 316424.14 1387200.85 320
C14 317095.57 1387962.52 320
C15 317687.67 1388639.30 320
C16 318349.42 1389389.02 320
C17 319056.69 1390097.56 320
C18 319657.97 1390902.16 320
C19 320264.50 1391747.69 320
C20 320791.64 1392366.49 320
E1 321581.39 1393234.24 336
E2 321607.64 1394233.79 336
E3 321925.12 1395204.34 336
E4 322349.13 1396169.70 336
E5 322955.24 1397099.04 336
E6 323430.90 1398050.48 336
E7 323728.12 1398837.27 336
E8 324262.07 1399700.60 336
E9 324882.89 1400521.35 336
E10 325067.43 1401180.44 336
Ell 325426.59 1402466.11 336
E12 325704.55 1403301.59 336
E13 326126.04 1404149.29 336
E14 326781.30 1404595.64 336
E15 327112.83 1404797.76 336
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F 1 327362.58 1405548.81 304
F2 327661.64 1405814.66 304
F3 327987.45 1406048.59 304
F4 328309.60 14.06291.80 304
F5 328640.49 1406596.47 304
F6 '329055.60 1406874.75 304
F7 329377.57 1407117.58 304
F8 329817.95 1407439.92 304
F9 330045.81 1407741.81 304
F10 330400.36 1407983.57 304
F11 330726.65 1408313.57 304
F12 331113.96 1408542.60 304
F13 331482.01 1408791.20 304
F14 331847.39 1408928.95 304
O 332177.91 1409142.96 304
F16 332502.13 1409389.32 304
F17 332924.64 1409569.09 304
F18 333335.70 1409961.31 304
F19 333732.05 1410175.74 304
F20 333924.90 1410292.00 304
F21 334342.49 1410521.07 304
F22 334701.80 1410711.31 304
F23 335093.89 1410937.73 304
F24 335387.61 1411071.43 304
F25 335731.24 1411273.82 304
F26 336030.45 *1411367.38 304
F27 336401.48 1411556.16 304
F28 337352.18 1411866.43 304
F29 338277.73 1412190.11 304
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3.2 Monument Placement Methodology
Monuments were placed in pairs to establish the profile azimuth. A front(primary)monument was
placed low on the profile at a location that would be convenient for survey instrument operation,yet high
enough(when possible)to be above the intertidal zone. A rear(azimuth point)monument was placed
landward of the front monument to establish the azimuth of the profile and to provide a backsite(reference)
elevation for surveying the profile. This monument was usually as far as possible landward of the front
monument in a relatively stable,yet visible location,e.g.,at the top of the bluff or well behind the dune. In
many locations with bluffs it was not possible to place the azimuth point on the top of the bluff,either due to
visibility difficulties or access and safety considerations. In these cases the azimuth point was placed on the
slope of the bluff as high as possible.
Monuments originally set in the spring of 1998 consisted of either 6'long steel garden fence stakes
buried approximately 4'into the earth,generally placed in areas with rocky beaches;or wooden hubs with
fiberglass witness posts,generally placed in areas with sand dunes. It was found during the fall 1998 and
spring 1999 surveys that a significant number of the steel garden fence stakes set at the toe of the bluff had
been removed. In an attempt to provide a monument which is less likely to be removed by the public,the
missing monuments were replaced by green epoxied steel rebar rods with plastic survey caps with the words
"BEACH EROSION SURVEY MARKER"stamped on top. The line number was also stamped on the
plastic cap,allowing easier identification of survey line locations.
To facilitate the recovery of profile control in the future,the following descriptions are provided.
For each profile an explanation of the placement of the profile line and the monumentation used to initially
mark the line is given in the first paragraph. If a monument was found to be missing in a subsequent survey,
a description of the replacement monument is given in a following paragraph.
Al Spring 1998: Profile Al was set approximately 100 feet west of the western jetty at Mattituck Inlet.
The monument is a PK nail in the second guard rail post from the east end of the public parking lot
at the west side of Mattituck Inlet. The azimuth point is a PK nail in the pavement approximately 3
feet in front of the guard rail at the back of the parking lot.
A2 Spring 1998: Profile A2 was set approximately 500 feet west of A1,and approximately 100 feet
west of the west end of the parking lot. The monument is a wooden stake with a witness post set in
the grass on the dune. The azimuth point is a wooden stake with witness post set back in the grass
behind the dune.
A3 Spring 1998: Profile A3 was set approximately 970 feet west of A 1,in front of the first house to the
west of Mattituck Inlet. The line was offset 30 feet east to avoid a path to the beach. The
monument is a wooden stake with witness post in the grass about 15 feet behind the dune line. The
azimuth point is a wooden stake with witness post set back in the grass.
A4 Spring 1998: Profile A4 was set 1500 feet west of A 1,on a'property line with a wooden stockade
fence. Monument is a wooden stake with witness post in grass. Azimuth point is a wooden stake
with witness post back in grass.
A5 Spring 1998: Profile A5 was set 2000 feet west of Al,approximately 5 feet east of a wooden
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bulkhead between two homes. The monument is a wooden stake with witness post on the front edge
of the grass. The azimuth point is a nail in the most landward bulkhead piling on the east edge of
the bulkhead.,
A6 Spring 1998: Profile A6 was set 2500 feet west of Al,approximately 150 feet west of the last
house on the beach. The monument is a wooden stake with witness post in grass approximately 5
feet behind the dune line. The azimuth point is a wooden stake with witness post in front of the
brush.
A7 Spring 1998: Profile A7 was set 3000 feet west of Al. The monument is a metal fence stake in the
grass about 25 feet seaward of the toe of the bluff. The azimuth is a metal fence stake at the toe of
bluff.
A8 Spring 1998: Profile A8 was set 3500 feet west of Al. The monument is a metal fence stake 20
feet from toe of bluff. The azimuth is a metal fence stake at the toe of bluff.
A9 Spring 1998: Profile A9 was set 4000 feet west of Al. The monument is a metal fence stake in a
pebble beach 15 feet from the toe of bluff. The azimuth is a metal fence stake about 10 feet up the
slope.
Spring 1999:ReshotA9AZ as A9D, a metal fence stake at the toe of the bluff. SetA9AZD, a
wooden stake set 30 feet up the bluff.
A10 Spring 1998: Profile A10 was set 5000 feet west of Al. The monument is a metal fence stake at the
east end of a large bare earth slope,about 15 feet from toe of bluff. The azimuth is a metal fence
stake 15 feet up the bluff.
Spring 1999:Set AI OD, a rebar with a plastic survey cap at the toe of the bluff,•and AIOAZD, a
wooden stake 30 feet up the bluff.
All Spring 1998: Profile Al 1 was set 6000 feet west of Al. The monument is a metal fence stake at toe
of bluff. The azimuth is a metal fence stake 20 feet up the bluff.
Spring 1999:Set A]ID, a rebar with a plastic survey cap at the toe of the bluff,and Al IAZD, a
metal fence stake 30 feet up the bluff.
Al2 Spring 1998: Profile Al2 was set 7000 feet west of Al. The monument is a metal fence stake 15
feet from toe of bluff. The azimuth is a metal fence stake 15 feet up the bluff.
Spring 1999:Set Al2D, a rebar with a plastic survey cap at the toe of the bluff, and Al2AZD, a
metal fence stake 30 feet up the bluff. The line is near the flagpole to the west of the stairs.
A13 Spring 1998: Profile A13 was set 8000 feet west of Al. The monument is a metal fence stake 6
feet from toe of bluff. The azimuth is a metal fence stake 20 feet up the bluff.
Spring 1999: Set A13D, a rebar with a plastic survey cap at the toe of the bluff,and A13AZD, a
wooden stake 30 feet up the bluff.
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A14 Spring 1998: Profile A 14 was set 9000 feet west of A 1. The monument is a metal fence stake 20
feet from toe of bluff. The azimuth is a metal fence stake at toe of bluff.
Spring 1999:Set A]4D, a rebar with a plastic survey cap at the toe of the bluff, and A14AZD, a
wooden stake 30 feet up the bluff.
A15 Spring 1998: Profile A 15 was set approximately 10,000 feet west'of Al,moved slightly west to
avoid a stairway. The monument is a metal fence stake at toe of bluff. The azimuth is a metal fence
stake up the bluff.
Spring 1999:Set Al SAZD, a wooden stake at the top of the bluff near the stairway landing.
A16 Spring 1998: Profile A16 was set 11,000 feet west of Al. The monument is a metal fence stake at
toe of bluff. The azimuth is a metal fence stake up a small gully filled with briars,hidden by
vegetation in the summer.
Spring 1999:SetA16D, a rebar with a plastic survey cap at the toe of the bluff.
Cl Spring 1998: Profile C1 was set approximately 100 feet east of the easterly jetty at Mattituck Inlet.
The monument is a wooden stake with witness post on the dune. The azimuth is a wooden stake
with witness post behind the dune.
C2 Spring 1998: Profile C2 was set 500 feet east of C 1. The monument is a wooden stake with
witness post on the dune crest. The azimuth is a wooden stake with witness post on the second dune
crest.
C3 Spring 1998: Profile C3 was set 1000 feet east of C 1. The monument is a wooden stake with
witness post on a steep dune crest. The azimuth is a wooden stake with witness post in front of
brush.
C4 Spring 1998: Profile C4 was set 1500 feet east of Cl,about 250 feet west of the Balie Beach Road
parking area. The monument is a wooden stake with witness post set at the toe of the dune in beach
grass. The azimuth is a wooden stake with witness post in front of brush.
C5 Spring 1998: Profile C5 was set 2000 feet east of C 1,about 200 feet east of the Balie Beach Road
parking area. The monument is a metal fence stake behind a bulkhead. The azimuth is a wooden
stake with witness post up the bank.
C6 Spring 1998: Profile C6 was set 2500 feet east of C 1,offset slightly east to avoid a stairway. The
monument is a metal fence stake 8 feet from toe of bluff. The azimuth is a wooden stake with
witness post up the bluff.
Spring 1999:Set C6D, a rebar with a plastic survey cap at the toe of the bluff.
C7 Spring 1998: Profile C7 was set 3000 feet east of Cl. The monument is a metal fence stake 10 feet
from toe of bluff. The azimuth is a wooden stake with witness post slightly up the bluff.
Spring 1999:Set C7D, a rebar with a plastic survey cap at the toe of the bluff;and C7AZD, a
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wooden stake 30 feet up the bluff.
C8 Spring 1998: Profile C8 was set 3500 feet east of Cl,offset slightly to the west to avoid a damaged
stairway. The monument is a tack in the most landward piling of the more westerly of two bulkhead
returns,behind a short section of bulkhead joining two separate bulkheads. The azimuth is a
wooden stake with witness post up the slope.
C9 Spring 1998: Profile C9 was set 4000 feet east of C 1. The original monument was a metal fence
stake set on the beach between two bulkheads in front of a bare bluff. During the Spring 1998
survey the metal fence stake was found to have been removed. A secondary monument was placed
west of the origin point,consisting of a nail in the piling at the east end of the more westerly of the
two bulkheads. The azimuth point is a metal fence stake slightly up the bluff.
Spring 1999:Reshot C9D, a metal fence stake at the toe of the bluff, set C9AZD, a wooden stake
40 feet up the bluff.
C10 Spring 1998: Profile C10 was,set 4500 feet east of Cl,about 20 feet east of the most easterly
bulkhead in this stretch of beach,about 100 feet west of a gully running down to the beach. The
monument is a metal fence stake 10 feet from the toe of bluff. The azimuth is a wooden stake with
witness post 15 feet up the bluff.
Spring 1999:Set CLOD, a wooden stake at the toe of the bluff; and C10AZD, a wooden stake up
the bluff.
C11 Spring 1998: Profile CI was set 5000 feet east of Cl,at a small point covered with concrete
rubble. The monument is a metal fence stake set at the base of the bluff by a large boulder. The
azimuth is a metal fence stake up the bluff in grass.
C 12 Spring 1998: Profile C 12 was set 5500 feet east of Cl,about 200 feet east of a bulkhead and stairs.
The monument is a metal fence stake at the toe of bluff. The azimuth is a metal fence stake up the
bluff.
C 13 Spring 1998: Profile C 13 was set 6500 feet east of Cl,offset about 100 feet to the east to avoid
stairs and a boulder. The monument is a metal fence stake at the toe of bluff. The azimuth is a
metal.fence stake up the bluff.
C14 Spring 1998: Profile C14 was set 7500 feet east of Cl,offset about 100 feet to the east to avoid a
set of stairs. The monument is a metal fence stake at the toe of bluff. The azimuth is a metal fence
stake up the bluff.
C15 Spring 1998: Profile C15 was set 8500 feet east of Cl. The monument is a metal fence stake 15
feet from toe of bluff. The azimuth is a metal fence stake up the bluff.
Spring 1999:Set C15D, a rebar with a plastic survey cap at the toe of the bluff
C 16 Spring 1998: Profile C 16 was set 9500 feet east of Cl,about 100 feet west of a cut in the bluff.
The monument is a metal fence stake 15 feet from toe of bluff. The azimuth is a metal fence stake
up the bluff.
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C 17 Spring 1998: Profile C 17 was set 10,500 feet east of C 1. The monument is a metal fence stake 15
feet from toe of bluff. The azimuth is a metal fence stake at toe of bluff.
Spring 1999:Reshot C17AZ as C17D, a metal fence stake at the toe of the bluff, and set C17AZD,
a rebar with a plastic survey cap on top of the bluff.
C 18 Spring 1998: Profile C 18 was set 11,500 feet east of C l. The monument is a metal fence stake 25
feet from toe of bluff. The azimuth is a metal fence stake at toe of bluff.
Spring 1999:Reshot C18AZ as C18D, a metal fence stake at the toe of the bluff, and set C18AZD,
a wooden stake up the bluff in brush above the eroded area.
C 19 Spring 1998: Profile C 19 was set 12,500 feet east of Cl,offset about 50 feet to the east to avoid a
stairway. The monument is a metal fence stake about 6 feet seaward of a bulkhead. The azimuth is
a metal fence stake landward of the bulkhead.
Spring 1999:Set C19D, a PK nail in the wooden bulkhead.
C20 Spring 1998: Profile C20 was set about 13,300 feet east of C1,offset about 200 feet to the west to
avoid the motel at the end of Duck Pond Road. The line is set along the easterly side of the roadway .
leading to the beach adjacent to the motel. The monument is a metal fence stake just seaward of a
guardrail. The azimuth is a metal fence stake set between the road and the motel.
E1 Spring 1998: Profile El is at Profile 1 Old,about 1000 feet to the east of Duck Pond Road,at the
second of two bulkheads. The monument is a metal fence stake seaward of the bulkhead. The
azimuth is a metal fence stake behind the bulkhead.
Spring 1999:Set E1PK, a PK nail in the wooden bulkhead.
E2 Spring 1998: Profile E2 was set 1000 feet east of E1. The monument is a metal fence stake 15 feet
from toe of bluff. The azimuth is a metal fence stake up the bluff.
Fall 1998:Replaced E2 with E2D, a rebar without a plastic cap at the toe of the bluff.
E3 Spring 1998: Profile E3 was set 2000 feet east of E1,in front of a bulkhead with extensive terracing
on the bluff. The monument is a metal fence stake on the beach. The azimuth is a metal fence stake
on the third terrace.
Spring 1999:Set E3PK, a PK nail in the wooden bulkhead.
E4 Spring 1998: Profile E4 was set 3000 feet east of E1,offset slightly east to avoid a slide area of the
bluff. The monument is a metal fence stake 10 feet from toe of bluff. The azimuth is a metal fence
stake up the bluff.
Fall 1998:Reset E4 with E4D, a rebar with plastic cap at the toe of the bluff; and E4AZ with
E4AZD, a rebar with plastic cap 40 feet up the bluff.
E5 Spring 1998: Profile E5 was set 4000 feet east of El,landward of a bulkhead between two
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stairways. The monument is a wooden stake with witness post. The azimuth is a wooden stake with
witness post above bushes on the bluff.
Spring 1999:Set ESPK, a PK nail in the wooden bulkhead.
E6 Spring 1998: Profile E6 was set 5000 feet east of El,offset just to the east of a small bulkhead.
The monument is a metal fence stake 8 feet from toe of bluff. The azimuth is a metal fence stake up
the bluff.
Fall 1998:Reset E6AZ as E6AZD, a metal fence stake up the bluff.
E7 Spring 1998: Profile E7 was set 6000 feet east of E1. The monument is a metal fence stake 4 feet
from toe of bluff. The azimuth is a metal fence stake up the bluff.
Fall 1998:Replaced E7AZ with E7AZD, a metal fence stake 1 S feet up the bluff.
E8 Spring 1998: Profile E8 was set 7000 feet east of El. The monument is a metal fence stake 8 feet
from toe of bluff. The azimuth is a wooden stake with witness post up the bluff.
Fall 1998:Replaced E8 with EBD, rebar with plastic cap at the toe of the bluff, and EBAZ with
EBAZD, rebar with plastic cap 40 feet up the bluff.
E9 Spring 1998: Profile E9 was set 8000 feet from El. The monument is a metal fence stake near toe
of bluff. The azimuth is a metal fence stake up the bluff.
Fall 1998:Replaced E9 with E9D, a rebar with plastic cap at the toe of the bluff;and E9AZ with
E9AZD, a rebar with plastic cap 20 feet up the bluff.
E10 Spring 1998: Profile E10 coincides with Profile 2 Old,located about 8680 feet from El,near the
middle of three wooden stairways up the bluff. The monument is a new metal fence stake set
adjacent to the 2 Old metal fence stake,which was found bent over on the beach. The azimuth point
is the 2 Old metal fence stake on top of the bluff.
Fall 1998:Replaced El with El OD, rebar with plastic cap at toe of the bluff
Ell Spring 1998: Profile El was set 10,000 feet from El. The monument and azimuth are metal fence
stake.
E12 Spring 1998: Profile E12 was set 10,900 feet from El,adjusted to the west to avoid a stairway. The
monument and azimuth are metal fence stake.
E13 Spring 1998: Profile E13 coincides with Profile 3 Old. The monuments are the 3 Old metal fence
stake on the beach.
E14 Spring 1998: Profile E14 coincides with Profile 4 Old. The 4 Old monuments were not recovered.
The E14 monument and azimuth were set near the site of the 4 Old profile,consisting of wooden
stake with witness post.
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E15 Spring 1998: Profile E15 coincides with Profile 5 Old,just to the west of Goldsmith Inlet. The E15
monument consists of a metal fence stake set adjacent to the 5 Old metal fence stake,which was
found bent over. The azimuth is the 5 Old azimuth metal fence stake.
F1 Spring 1998: Profile F1 coincides with 6 Old,just to the east of Goldsmith Inlet. The monument
and azimuth points are the original 6 Old metal fence stakes.
F2 Spring 1998: Profile F2 was placed 400 feet east of F1,in order to fit two monuments between 6
Old(F1)and 7 Old(F4). The monument and azimuth are metal fence stakes in light brush on the
dune.
F3 Spring 1998: Profile F3 was place 800 feet east of F1. The monument and azimuth are metal fence
stakes in dune grass in front of the dune covered with shrubs.
F4 Spring 1998: Profile F4 coincides with 7 Old,approximately 1200 feet east of F 1. The monument
and azimuth are the original 7 Old metal fence stake.
F5 Spring 1998: Profile F5 was set about 450 feet east of F4,in order to fit five monument evenly
between 7 Old and 8 Old. Monument and azimuth are metal fence stakes.
F6 Spring 1998: Profile F6 was set 947 feet east of F4,offset to the east of the easterly of two beach
cottages. The monument and azimuth are metal fence stakes set in the grass in front of the dune.
F7 Spring 1998: Profile F7 was set 1350 feet east of F4,about 250 feet west of the house with large
groin and bulkhead. The monument and azimuth are metal fence stakes in the dune.
F8 Spring 1998: Profile F8 was set about 1900 feet from F4,offset to the east to avoid the house with
large groin and bulkhead. The monument is a metal fence stake in the grass in front of the dune.
The azimuth is a metal fence stake in the brush on the dune.
F9 Spring 1998: Profile F9 was set 2250 feet from F4. The monument and azimuth are metal fence
stakes on the dune in brush.
F 10 Spring 1998: Profile F 10 coincides with 8 Old. The monument and azimuth are the original 8 Old
metal fence stakes.
F 11 Spring 1998: Profile F 11 was set 450 feet east of F 10,in order to space three profiles evenly
between 8 Old(F 10)and 9 Old(F 14). The monument is a metal fence stake about 20 feet behind
the dune line. The azimuth is a metal fence stake set back in the dune.
F 12 Spring 1998: Profile F 12 was set 900 feet east of F 10. The monument and azimuth are metal fence
stakes set back in the dune in brush.
F13 Spring 1998: Profile F12 was set 1350 feet east of F10,approximately 50 feet east of the access
road from the environmental camp to the beach. The monument and azimuth are metal fence stakes
set back in the dune in brush.
F 14 Spring 1998: Profile F 14 coincides with 9 Old. The monument and azimuth are the original 9 Old
metal fence stakes,set about 8 feet apart above a bulkhead,approximately 60 feet east of the
13
western end of the bulkhead.
F 15 Spring 1998: Profile F 15 was set 400 feet from F 14 to put it midway between 9 Old(F 14)and 10
Old(F 16). The monument is a wooden hub set flush with the surface of the ground,about 3 feet
inside a wooden bulkhead,between a wooden shingled cottage and a white cottage. The azimuth is
a wooden hub set back east of the shingled cottage in grass.
F 16 Spring 1998: Profile F 16 coincides with 10 Old. The monument and azimuth are the original 10
Old metal fence stake. The monument is set in the sand seaward of the dune about 7 feet east of a
stair rail by a small"A"frame bath house. The azimuth is in the dune.
F17 Spring 1998: Profile F17 coincides with 11 Old. The monument is a wooden hub set flush with the
ground three feet landward of the concrete bulkhead,on line with the original 11 Old mark on.the
concrete wall. The azimuth is a wooden hub set 1 foot east of a gray wall.
F 18 Spring 1998: Profile F 18 coincides with 12 Old,and is located near the center of the public parking
area near the end of Horton Lane. The monument is a hole in the top of a guard rail post painted
orange,near the guard rail dividing the parking area. The azimuth is the original 12 Old metal fence
stake in the dune on the landward side of the roadway.
F19 Spring 1998: Profile F19 is located just to the east of the parking lot at the end of Horton Lane,on
the east side of a white beach cottage,set midway between 12 Old(F 18)and 13 Old(F20). The
monument is a wooden stake with witness post on top a small dune. The azimuth is a wooden stake
with witness post to the rear.
F20 Spring 1998: Profile F20 coincides with 13 Old. The monument and azimuth are the original 13
Old metal fence stakes set in the dune,on the east edge of the lot with a beach cottage with green
siding.
F21 Spring 1998: Profile F21 was set 445 feet from F20,in order to fit two new profiles evenly between
13 Old(F20)and 14 Old(F23). The monument is a wooden stake with witness post set in the grass
between a vacant lot and a beach cottage with green stained siding near the dune line. The azimuth
is a wooden stake with witness post to the rear.
F22 Spring 1998: Profile F22 was set 890 feet from F20. The monument is a wooden stake with
witness post set at the edge of the grass between a large greenish duplex and a yellowish house. The
azimuth is a wooden stake with witness post set in the grass to the rear.
Spring 1999:Reset F22AZD, a wooden stake near the location of the original azimuth point.
F23 Spring 1998: Profile F23 coincides with 14 Old. The monument and azimuth are the original 14
Old metal fence stake set in the grass about 100 feet east of a blue beach house.
F24 Spring 1998: Profile F24 was set 360 feet from 14 Old(F23)in order to fit three new profile evenly
between 14 Old(F23)and 15 Old(F27). The monument is a wooden stake with witness post set
between a natural shingled house with a red brick chimney and a house with brown shingle siding.
The azimuth is a wooden stake with witness post set back in front of brush.
14
Spring 1999:Reset F24D, a wooden stake near the location of the original point.
F25 Spring 1998: Profile F25 was set 720 feet from 14 Old(F23)in a public parking area. The
monument is a PK nail near the front edge of the parking lot approximately 50 feet from the west
edge of the parking lot. The azimuth is a PK nail near the rear parking lot guard rail,near the 3rd
guard rail post from the west end of the guard rail.
F26 Spring 1998: Profile F26 was set 1080 feet from 14 Old(F23),approximately 200 feet east of a
public parking area. The monument is a wooden stake with witness post near the edge of the grass.
The azimuth is an existing metal fence stake about 40 feet back.
F27 Spring 1998: Profile F27 coincides with 15 Old. The monument is located in an empty lot in front
of several beach cottages. The monument is a new metal fence stake replacing 15 Old,which was
not recovered,at the approximate original location of 15 Old,abut 10 feet in back of the grass line.
The azimuth is a new metal fence stake in the approximate location of the 15 Old azimuth.
F28 Spring 1998: Profile F28 was set 1000 feet east of 15 Old(F27). The monument is a metal fence
stake at the front edge of the grass. The azimuth is a metal fence stake back at the edge of the brush.
F29 Spring 1998: Profile F29 was set 1000 feet from F28,just east of a small bulkhead near a"Public
Area"sign. The monument is a metal fence stake near the toe of the bluff. The azimuth is a metal
fence stake set in brush up the bluff.
After the stakes were driven in place,the horizontal and vertical coordinates were established using
precalibrated real time kinematic Global Positioning System(GPS).
3.3 Real Time Kinematic GPS Calibration and Application
The control survey was conducted with Real Time Kinematic(RTK)Global Positioning System
(GPS)suvey techniques. The GPS was calibrated using USGS monuments in the local area for vertical and
horizontal control. The GPS calibration was consistent with a previous control survey conducted by TVGA
Engineering("GPS REPORT,Town of Southold Beach,Survey Monuments,Duck Pond Point to Horton
Point,"TVGA Job Number 950129)for the New York Department of State. This previous survey provided
horizontal and vertical control for the 15 profile line monuments and azimuth points established previously.
The current survey used the same control monuments as did the TVGA GPS calibration,as well as tying into
three of the older profile monuments using coordinates from the TVGA report. The calibration provided
consistent results with the TVGA survey.
The original GPS control survey was performed on the week of February 9th, 1998 utilizing Trimble
4400 dual frequency GPS receivers. The precision yielded by the dual frequency receivers are as follows:
horizontally lcm.+2ppm,vertically 2cm+2ppm with a minimum of 5 satellites observed and good satellite
geometry.
15
A minimum of 3 minute occupation times were used for all calibration points,and the control point
survey used a minimum of 3 epochs per observation. The following points were held in the calibration
process.
HELD POINT ERROR DESCRIPTION
Horz Hold 0.083 Disc in Concrete
Horz Elijah 0.150 Disc in Concrete
Horz. &Vert Old Pt#13 0.085 Iron Fence Stake
Horz&Vert Old Pt#14 0.088 Iron Fence Stake
Horz&Vert Old Pt#12 0.064 Iron Fence Stake
Horz&Vert Felix 0.238 Disc in Concrete
Total Error Vert: 0.076
Total Error Horz: 0.126
Total Error Horz&Vert: 0.134
The GPS control survey was conducted in coordination with a Professional Land Surveyor. While
conducting the Spring 1999 beach profile survey,which involved replacement of many survey control stakes
(see previous section),discrepancies were discovered in some of the original monument elevations. It was
discovered that the GPS ellipsoidal,or uncalibrated,elevations were used erroneously for controlling the
1998 data. For the monuments set in the Spring of 1998,the errors ranged from 0.05 to 1.20 feet. The
errors were not obvious in the first year of surveys because no prior data,other than uncontrolled NYSDOS
data,were available for comparison. Horizontal coordinates of the monuments did not contain the errors.
Once corrected monument elevations were developed,all survey data was adjusted to reflect the
correct monument elevations. This,along with the incorporation of so much new control(due to erosion of
1998 monumentation)caused delays in processing the data and completing this report.
It should be noted that the GPS corrections on the eastern portion of the shoreline in the Kenny's
Beach area are on the order of 0.05. Monuments from this area were also used to correct the fathometer
measurements for.water level variations,so that the offshore bathymetric surveys are unaffected by the
elevation corrections.
The coordinate table provided for monuments in the Spring 1998 survey report included the
uncorrected elevations. The coordinates for all monuments,including those originally set in the Spring of
1998 and those reset in subsequent surveys are included in this report in Appendix B with the correct
elevations.
16
4.Transect Surveys
4.1 Methodology
Transect surveys have been conducted for this contract on three occasions: Spring 1998,Fall 1998,-
and Spring 1999. The Spring 1998 and Spring 1999 surveys included all of the survey lines described in the
previous sections. The Fall 1998 survey included only the eastern half of the project,from Duck Pond Point
to Horton Point(the E and F series of lines).
Transect surveys were performed using two techniques,one for the near shore area(from the bluff
to as deep as possible in the intertidal zone)and one for the offshore portion of the profile. The near shore
surveys were performed using a Uitz Set 2132 total station and reflector rods. This eliminated problems
associated with dropouts experienced by GPS systems close to the bluffs. The instrument was set up on the
front monument of each profile and the rod man began the transect survey at the top of the bluff or behind
the dune(the landward limit of the transect). The rod man proceeded seaward into the water to
approximately the-3 ft NAVD88 contour and sometimes deeper. Accuracy is estimated to be approximately
0.1 feet both horizontally and vertically.
The offshore portion of the survey was originally to be performed using a sea sled. Field
investigations indicated that the prevalence of subsurface boulders prevented the collection of a continuous
transect and the use of the type of boat needed to tow a sea sled. As the alternative,a high accuracy
sounding system was used in combination with continuous recording of water levels to adjust the readings
for water level. The tide staff was deployed in approximately 6 feet of water and surveyed relative to a
previously installed monument at the shoreline. The sounding equipment used was an Innerspace Model
448 single frequency depth sounder operating at 208Hz with an 8-degree beam(survey quality,NOAA and
Corps of Engineers approved system). This sounder was interfaced with a Model 610 Starlink Differential
GPS receiver linked to a laptop computer running Innerspace hydrographic survey software with track line
guidance. The track lines were defined prior to the survey and entered into the onboard computer. Weather
was chosen such that wave effects were minimized;however,data were collected at as a high a sampling rate
as possible to minimize environmental effects. Error in elevation was approximately+/-0.5 feet in the
offshore portion of the profile(random error,not bias),and horizontal position accuracy is estimated at less
than 10 feet.
The data files are presented on the attached survey map and in the digital file contained on the
attached floppy disk. The digital data are contained in DXF format and in QuattroPro spreadsheet format.
Plots of the cross sections are presented in Appendix A.
17
5. Bathymetric Survey of Goldsmith Inlet Region
5.1 Field Methodology/Accuracy
A bathymetric survey of the Goldsmith Inlet area was conducted in the Fall of 1998,covering an
area from just to the west of Goldsmith Inlet,extending approximately 10,000 feet to the east of Goldsmith
Inlet and approximately 1500 feet offshore. The bathymetric survey was performed using the high accuracy
sounding system with water level adjustments described previously(Section 4.1).
The data files are presented on the attached survey map and in the digital file contained on the
attached floppy disk.
5.2 Mapping
The attached map presents the bathymetric survey data and contours derived from the data. As
required by the work scope,the mapping is presented in plan view at a scale of 1"=200'in Long Island
Lambert State Plane Coordinates(NAD83)and relative to the vertical datum NAVD88. Contouring of the
data is presented on a two-foot contour interval and the actual data are overlaid as a layer over the contours.
As with any contour plot,the user should review both the actual data and the contours before making
interpretations because the contouring algorithm itself tends to smooth and average raw data considerably in
order to formulate relatively well-behaved contours. The shoreline shown on the maps was derived from
March 1998 aerial photography by Aubrey Consulting,Inc.under a separate simultaneous project effort.
Data files of the mapping are provided on a floppy disk in DXF and XYZ(Quattropro)formats.
5.3 Difference Mapping
The bathymetry collected in the fall of 1998 for the Goldsmith Inlet area was compared to
bathymetry collected in 1996 for the New York Department of State over the same area.
The bathymetric survey data for each of the surveys were gridded(averaged)on 50'by 50'horizontal
cells,and the difference between the two surveys for each of the cells was calculated. The elevation
differences were then contoured using values where both surveys had data. The difference plot is attached,
at a scale of 1"=200'with contouring performed at 0.5 foot intervals. A DXF file is also contained on the
accompanying diskette.
A total volume difference between the 1996 survey and the 1998 survey,determined by integrating
the difference of the two surveys,is found to be approximately 43,000 cubic yards of erosion.
18
6.Aerial Photography
Aerial photography was taken on May 14, 1999. The photography was taken by Aerographics,
Incorporated. The vertical aerial photography is presented in Appendix C. It is color,stereographic and at
1:9600 scale. Visible targets were present in the photos that were surveyed by Aubrey Consulting,Inc.for
use in locating the mean high water shoreline.
19
7. Beach Morphology
7.1 Summary of Beach Morphology
Southold's shorefront features include beaches,bluffs,dunes,wetlands and barrier landforms.
Topographic character and sediment composition of the area contribute to the manner and rate of coastal
erosion and flooding.
Inlets are short narrow waterways connecting bays or lagoons with a large body of water. The
Southold shoreline has Mattituck Inlet and Goldsmith Inlet along its shoreline.
Bluffs are high steep banks or cliffs which often erode or collapse due to their steep seaward slope.
Bluffs border the majority of the Southold shoreline. The bluffs along the area are characterized by loosely
consolidated glacial outwash and moraine material:generally a mixture of clay,silt,sand,cobble and
boulder. Material from the bluffs enter the littoral system,contributing to beaches of varying width,slope
and sediment character.
Beaches are defined as zones of unconsolidated material extending landward from the low water line
to a place where there is a marked change in material or physiographic form,or to a line of permanent
vegetation. These are found along the entire length of Southold's shoreline. Because of the variable content
of the sediment contribution to the beaches from the bluffs,the beaches consist of sediments ranging from
sand to cobble,with widths ranging from 25 feet to 100 feet.
Dunes are ridges or mounds of loose,unconsolidated sand behind the beach,providing added
protection against wave attack and flooding during storm events. Portions of the coast are backed by dunes
- (eg.,east of Goldsmith Inlet,adjacent to Mattituck Inlet and at Horton Lane Beach).
In addition to the larger scale features described above,the coast has other geomorphological
features that affect,or are a result of,sedimentation. The beach exhibits a berm that generally.fronts the
bluff or dune,extending seaward until the beach slopes more steeply seaward into the water where tidal and
wave activity predominate. In that region,such features as a low water step,an inshore trough,an inshore
ridge and an offshore bar(s)form along a given beach profile. Many of these features are dependent upon
the sediment composition and the wave/tidal characteristics that have occurred just prior to the time of
measurement. Boulders are also present along many beach profiles and can affect the evolution of the beach
immediately adjacent to them. The entire area,but especially in the vicinity of Duck Pond and Horton
Points,exhibit boulders in the intertidal area and often deeper due to boulders eroding from the bluffs.
Man-made structures,such as bulkheads,jetties,and groins are relevant geomorphological features
as well. West of Goldsmith Inlet residential development is sparse. East of Goldsmith Inlet development is
also sparse and shoreline protection efforts include groins,bulkheads and seawalls located in the Kenney's
Road Beach area. Stone jetties at Mattituck and Goldsmith Inlets are the most prominent coastal structures.
Large updrift fillets and downdrift offsets in the beach have formed in response to the jetties. East of
Goldsmith Inlet,a series of groins was constructed to protect private shoreline segments. Erosion appears to
be most concentrated at Kenneys Beach,where beach recession,revetment/bulkhead undermining and low
beach elevation are prevalent. In some areas,bluff stabilization measures in the form of bulkheads have
been constructed.
The attached beach morphology map illustrates features described above in plan view. The details
were derived from the cross section data surveyed as part of this project. These data can generally allow the
20
area to be subdivided into reaches with common features,as follows:
West of Mattituck Inlet,Profiles A 1 to A6-characterized by sand beaches backed by low dunes. The
beaches near the Inlet are wide due to the accretion fillet caused by the Mattituck jetty. Beach houses located
behind the dune,no shore protection structures.
West of Mattituck Inlet,Profiles A7 to A 16-characterized by high bluffs fronted by narrow beaches of sand
and cobbles. Extensive intertidal boulders. Little development or shore protection structures.
East of Mattituck Inlet,Profiles C1 to C4-an undeveloped area with sandy beaches backed by narrow,high
dunes. No shoreline protection.
East of Mattituck Inlet,extending to Duck Pond Point,Profiles C5 to C20-characterized by mostly high
bluffs with narrow sand and cobble beaches. Extensive intertidal boulders. Some development on the
bluffs,especially along the western portion of this segment,with periodic bulkheads along the toe of the
bluff.
East of Duck Pond Point,Profiles E1 to E13 -characterized by mostly high bluffs with narrow sand and
cobble beaches,and extensive intertidal boulders. Some development on the bluff. Sparse bulkheads,and a
few low,ineffective groins constructed out of native beach boulders.
West of Goldsmith Inlet,Profiles E14 and E15 -wide sandy beaches backed by low dunes. Some
development set well behind the shoreline. No shoreline protection.
East of Goldsmith Inlet,Profiles F 1 to F8-primarily undeveloped shoreline with sandy beaches backed by
wide dunes. One home with a bulkhead and jetty(Bittner groin)exist in this stretch of beach.
Kenny's Beach Area,Profiles F9 to F 18-highly developed shoreline with beach cottages close to the
shoreline,characterized by narrow sandy or pebble beaches,with extensive bulkheads and a series of short
groins.
McCabe's Beach Area,Profiles F19 to F27-developed shoreline with beach cottages and public parking
areas. Beaches are generally sandy,backed by very low dunes in areas not affected by development.
Horton Point,Profiles F27 and F28-characterized by high,heavily vegetated bluffs fronted by narrow
cobble beaches and extensive intertidal and offshore boulders. This shoreline appears to be stable based on
the extensive vegetation on the bluffs which are obviously not eroding.
A coastal morphology map is included as an attachment to this report illustrating the features
described above and is included as a digital file(DXF format)for on-screen viewing at user-selectable scales.
Because of the narrow spacing of cross shore features compared to the longshore extent of the survey,a
scale for hard copy presentation was difficult to choose. It is recommended that the map be viewed using
zoom features within a CADD program,supplemented by aerial photography.
7.2 Correlation of Morphology with Sediment Size
A report entitled"Geophysical Investigation,Duck Pond Point to Horton Point,Southold Project".
by Alpine Ocean Seismic Survey,Inc. (April 24, 1998)was provided as a basis for correlating beach
21
morphology with sediment characteristics within the surveyed area. The work concentrated on the
Goldsmith Inlet to Horton Point region,specifically at Kenny's Beach where the dune crest is generally+10
to+11 feet NAVD88.According to Alpine's report,the mean grain size is-0.44phi,and the median is-
0.2lphi,with a standard deviation of 1.23,indicating medium to very coarse sand with poorly sorted
characteristics(fine and very coarse fractions). In the table below,an attempt is made to correlate sediment
size to the width of the beach("Distance Toe to Zero")and the width of the active beach profile("Distance
from Zero to-12.0"). The midbeach sample appeared to be the most well-behaved(least variable and least
disturbed by dune erosion and active profile shifts)and was chosen as a basis for looking for a correlation.
The table shows that there is really no general trend.
Table 7.1
Line Foreshore Mid Distance Distance NYSDOS
Slope Beach Toe to from Zero Profile
(Percent) phi Zero to-12.0 No.
F1 10 100 310 6
F2 12 88 270
F3 14 95 245
F4 10 65 275 7
F5 12 82 380
F6 12 80 313
F7 12 78 400
F8 9 75 670
F9 10 98 509
F10 12 -1.29 89 440 8
Fll 13 87 460
F12 13 -1.30 82 450
F13 13 93 420
F14 15 0.41 37 335 Blkhd,9
F15 14 38 347 Bulkhead
F16 14 -0.55 48 330 10
F17 16 -0.92 29 306 Blkhd,ll
F18 15 -0.93 45 590 12
F19 15 96 340
F20 16 -0.03 124 355 13
F21 16 -0.12 101 365
F22 15 80 397
F23 14 -0.05 75 250 14
F24 12 77 227
F25 17 55 250
F26 14 59 180
F27 9 55 145 15
F28 16 79 150
F29 10 53 212
22
8. Preliminary Regional Sediment Budget
8.1 Volume Change Data
For purposes of estimating the preliminary sediment budget,the shoreline has been broken
down into segments corresponding to the morphological units identified in the previous section. For
each segment the change in volume over the length of the segment is calculated for above the mean
water line and below the mean water line using the transect data. The below mlw volume change
has been truncated at-12,since it appears that seasonal changes due to wave action do not occur
above-12. Other processes,such as the movement of fine-grained material by tidal current action,
may affect the deeper portions of the transects. These processes most likely do not affect the near
shore area because of their depth and distance offshore.
For some transects,for the most part in the McCabe's Beach and Horton Point areas,there
are large volume changes in the deeper portions of the transect which are probably not related to
shoreline processes. The deep water bathymetry,below the region affected by wave transport,
appears to be irregular and complex in these areas. Because the bathymetry is not uniform
alongshore,small differences in survey boat track from one survey to the next can translate to large
differences in transect depth. This could occur if the transect runs along a steep slope instead of
perpendicular to the slope,as is normal in shoreline surveying. Generally,the depths of the irregular
offshore features are great enough so that they probably do not have a direct impact on the near
shore area. It is possible that they do affect wave patterns by refracting long period waves. This
possibility can be examined by numerical wave modeling as part of future analysis.
23
Table 8.1 -Volume Change Between Surveys
Segment Segment Volume Segment Volume
Length Change (cy) Change (cy)
Spring 1998-Fall 1998 Spring 1998 - Spring
1999
Adjacent to the West side of Mattituck Inlet
Profiles Al to A6-sand beaches backed by low dunes
Above mlw Below Above mlw Below
mlw mlw
Al 350 1154 -1084
A2 481 -241 -144
A3 498 598 -1744
A4 512 1842 3888
A5 504 404 -1009
A6 511 3013 1992
Segment Total 6770 1898
West of Mattituck Inlet extending to the town line
Profiles A7 to A16-high bluffs fronted by narrow beaches of sand and cobbles
A7 503 452 -955
A8 506 -1114 1874
A9 761 -2967 -609
A10 1009 -5551 5551
All 1007 -18537 5037
Al2 1009 -4543 -7571
A13 1011 -1112 -1314
A14 1046 -5440 -1883
A15 1023 -14013 -2455
A16 483 -1207 -290
Segment Total -54031 -2615
Adjacent to the East side of Mattituck Inlet
Profiles C 1 to C4-sandy beaches backed by narrow,high dunes
C1 350 -700 630
C2 503 -1609 -2061
C3 511 1124. -5468
C4 512 615 -1229
Segment Total -570 -8128
East of Mattituck Inlet to Duck Pond Point
Profiles C5 to C20-high bluffs with narrow sand and cobble beaches
C5 533 -1066 -1492
24
C6 504 857 -1965
C7 457 -1279 3060
C8 503 -3625 -352
C9 531 -2020 -4571
CIO 505 -253 -5608
C11 495 -2030 -3714
C12 793 793 2140
C13 1050 -1050 5882
C14 957 -1723 -5552
C15 950 -7122 9211
C16 1001 -200 1201
C17 1003 -7421 201
C18 1023 -1534 -3783
C 19 927 -2131 -7692
C20 993 -2185 -1788
Segment Total -31990 -14824
East of Duck Pond Point
Profiles E1 to E13-high bluffs with narrow sand and cobble beaches
E1 1087 1521 -5650 978 -9888
E2 1011 2324 -808 -3133 -3840
E3 1038 3217 1245 -1453 -3113
E4 1082 1082 -5951 2164 1839
E5 1087 -978 -8476 1195 -7063
E6 952 -667 -2571 571 -5905
E7 928 6868 -6311 4919 -3434
E8 1022 17478 920 13594 -3782
E9 857 1799 -8311 942 -6083
E10 1010 2120 1212 2120 -6563
Ell 1108 2326 1772 -554 -3877
E12 914 -1370 -3015 -1827 -4294
E13 870 -2087 5045 522 8785
Segment Total 33633 -30899 20039 47218
West of Goldsmith Inlet
Profiles E14 and E15-wide sandy beaches backed by low dunes
E14 591 -354 -7441 0 -7677
E15 294 -235 1147 -294 3059
Segment Total -590 -6294 -294 4618
East of Goldsmith Inlet
Profiles F1 to F8-sandy beaches backed by low dunes
F1 300 60 -750 390 -1410
F2 401 -361 -3846 160 -4287
F3 402 -1006 -2012 -724 -2575
25
F4 427 43 213 171 -512
F5 475 -237 -1757 570 -2279
F6 452 -587 -1038 -316 -3702
F7 475 -47 -1234 -854 -1186
F8 462 -1294 -1756 693 647
Segment Total -3429 -12179 89 -15305
Kenny's Beach Area
Profiles F9 to F 18-Developed shoreline with bulkheads and narrow sandy or pebble beaches
F9 404 -1211 121 161 0
F 10 447 -223 89 804 -536
Fll 457 -137 -823 2788 91
F12 447 -134 -45 805 -179
F13 417 -459 42 417 543
F14 392 823 -941 549 -314
F 15 400 0 -921 481 -481
F16 433 -130 1430 -1559 -2469
F17 514 925 976 -514 1336
F18 509 713 0 2394 560
Segment Total 167 -72 6326 -1448
McCabe's Beach Area
Profiles F19 to F27-developed shorelines with sandy beaches and low dunes
F19 338 -203 -777 743 -1014 -
F20 351 35 -2560 -105 386
F21 441 -132 -2428 1368 618
F22 430 301 -3351 1031 -1418
F23 388 659 1396 775 465
F24 361 72 902 144 -649
F25 356 -285 -36 36 -677
F26 365 328 1569 949 547
F27 708 -991 1912 1841 1487
Segment Total -216 -3374 6783 -254
Horton Point
Profiles F28 and F29-high vegetated bluffs with narrow cobble beaches and boulders
F28 990 99 1089 -1089 -1683
F29 490 -735 4167 0 -981
Segment Total -636 5257 -1089 -2664
It should be noted that the accuracy of the surveys affects the measured volume change
quantities because of the large area over which volumes are calculated. The offshore portions of the
transects are made with a high precision fathometer with a total survey accuracy of approximately
plus or minus 0.5 feet. Over a transect length of 500 feet and a shoreline length of 1000 feet the 0.5
foot variability could result in a volumetric bias of as much as 9000 cy;however,generally
fathometer errors are random,resulting from fine scale variations in water temperature,bottom
26
material,and turbidity. The average survey depth error is obviously less than the 0.5 foot maximum
variability for any given reading and is minimized by taking a dense number of data points over a
large area. Other(much rarer)factors may result in a systematic error in offshore depths. These
factors can include thing such as water column layering during a portion of the tidal cycle,which
changes the speed of sound and thus the estimate of water depth,for only a portion of a survey and
only below a certain depth. Tidal currents may change the slope of the water surface,so that the
reference depth of the fathometer varies from the location where the water surface is being measured
relative to the horizontal datum,leading to small differences which vary throughout a tidal cycle.
Each of the potential inaccuracies resulting in a bias are small,and are minimized to the extent
possible by good offshore surveying practice and careful documentation of field conditions.
In a similar manner,the accuracy of the shoreward portion of the transects affects the scatter
of the above mlw volume change estimate,although the accuracy of the land survey is on the order
of 0.1 feet so the scatter is less. Of more significance to the landward portion of the survey is the
variability of the bluff measurements. The location of each survey is generally consistent within
plus or minus 5 feet on the beach and dune portions of the surveys. Because the beach and dune
have little variability over such longshore distances the volume change calculations are relatively
accurate in these areas. The location of survey measurements on the steep bluffs increases to the
order of plus or minus 10 to 15 feet because of the difficulty in climbing the soft slopes,and the fact
that repeated climbs in the same path on the soft bluff material would result in erosion due to the
survey measurements,biasing the measurements. The wider path of the survey measurements
combined with a greater longshore variability in bluff topography results in a greater scatter in
volume change estimates for those areas with high bluffs.
8.2 Analysis of Sediment Budget
The erosion of the high bluffs along portions of the shoreline are probably the primary
supply of sand and cobble beach material to the area shoreline. In addition to the sand and rocks,
the bluffs also contain significant amounts of fine silt and clay materials. When the bluffs erode and
the eroded material is redistributed along the shoreline by wave action,the fine materials are washed
offshore. Thus to estimate the volume of material contributed to the beach by a given volume of
bluff erosion,the percent of fine materials within the bluffs must be known. Because accurate
percentages of fine materials in the bluffs are not available,estimates must be make to obtain the
preliminary sediment budget. For areas west of Mattituck Inlet several areas of significant erosion
were noted between the spring 1998 and spring 1999 surveys,especially near lines AI I and A15. It
was noted that the erosion of the bluff took place by large slides of saturated soil,which carried
vegetation down the bluff onto the beach. The soil was extremely soft and muddy. This type of
failure indicates that the bluff in this area contains a large percentage of fine materials,estimated to
be from 60 to 80 percent clay and silt. In other areas the bluffs probably contain a higher percentage
of sand,with the fine content estimated to be in the 30 to 50 percent range.
Typical sinks for shoreline sediments include inlets,which can trap sediments in shoals,and
groins,which can trap sediments in the updrift fillet area. However,at some point inlets and groins
may reach their capacity to trap additional sediment,so that as much sediment leaves the area of the
inlet or groin as enters the area. In these cases the groin or jetty may still direct material offshore
where it can be carried by tidal currents out of the nearshore system. In the case of the Southold
beach area additional sinks have been tentatively identified at Duck Pond Point,where the
27
morphological map shows the offshore bar trending offshore into deeper water; an area to the west
of Duck Pond point near transect lines C 13 and C 14 where the morphological map shows a similar
trend;and between Duck Pond Point and Goldsmith inlet,where steep offshore slopes indicate that
material may be moving offshore.
Based on the formation of the fillet on the west jetties at Mattituck Inlet and Goldsmith
Inlet,it is apparent that the net longshore movement of sediment is from west to east. However,in
any given time period sediment may also move from east to west if storms occur from easterly
directions. Therefore over a short period of time the sediment budget may not represent the long
term shoreline trends. In the present analysis,the longest time period of sediment volume change
available for analysis is one year. This time period may not represent the long term average rates or
direction of sediment movement.
Because of the number of potential offshore sediment traps and the lack of longshore
transport rates,there are more unknown variables than there are known quantities. Therefore a
variety of assumptions must be made to obtain a preliminary sediment budget for the area. The
preliminary sediment budget is shown in the following table. Major assumptions are described at
the end of the table.
Table 8.2-Preliminary Sediment Budget(Volume in Cubic Yards)
Region Longshore Contribution Storage in Loss Longshore
Transport In From Bluff Profile Offshore Transport
Out
A16-A7 01 -130002 -3000 0 16000
A6-AI -16000 0 9000 0 7000
(Mattituck
Inlet)
CI-C4 -7000 0 -9000 0 16000
C5-C13 -16000 -60003 -7000 130004 16000
C14-C20 -16000 -150003 -8000 240004 16000
(Duckpond
Point)
E1-E13 -16000 0 -27000 270005 16000
E14-E15 -16000 0 -5000 80006 3000
(Goldsmith
Inlet)
F1-F8 -3000 0 -15000 20007 16000
0
28
F9-F18 -16000 0 5000 (Lockman 110001
Groin) t
F19-1727 -11000 0 7000 0 4000
F28-F29 -4000 0 -4000 8000' 0
'Transport across the Town Line is assumed to be zero due to the groins to the east of the line and
the change in shoreline orientation. Shoreline modeling could help refine this number.
2 The contribution of shoreline material is assumed to be 25 percent of the material lost from above
the mlw elevation.
3 The contribution from these bluffs is assumed to be 67 percent of the material lost from above the
mlw elevation
4 In order to maintain a longshore transport rate of j 6,000 cy,offshore losses must be assumed in
the vicinity of line C13 and Duckpond Point. The assumed rate of 16,000 cy is based on rates in
the previous longshore regions. This assumption could be further refined by shoreline
modeling.
S In order to maintain a longshore transport rate of 16,000 cy,offshore losses must be assumed in
this region. Examining the profiles indicates that the offshore profile becomes steep and drops to a
trough below-20'for profiles E10 to E15,which may indicate tidal currents become significant in
transporting shoreline material offshore.
6 In order to maintain a longshore transport rate of 16000 cy/year to the east of Goldsmith Inlet,the
loss from this region must split between 8000 cy moving offshore and 3000 cy bypassing Goldsmith
Inlet.
In order to maintain a longshore transport rate of 16000 cy/year to the east of Goldsmith Inlet,
2000 cy must move offshore at the Bittner Groin. This possibility is supported by the bathymetry
from the Goldsmith Inlet area,which shows the contours translated out in this region. The
alternative is to assume greater offshore losses at Goldsmith Inlet.
s The longshore transport rates must begin dropping in this region to keep the sediment volumes in
balance. The drop in transport would be expected based on the change in shoreline orientation,and
could be verified by shoreline modeling.
9 The 8000 cy must either be transported offshore at Horton Point or be transported around the
point.
Due to the short period of time over which volume change data has been collected(one
year),the above calculations are preliminary and extremely tentative due to the number of
assumptions which have had to be made. The data collected in the monitoring program has provided
invaluable insight into the present characteristics of the area and a snapshot of a one-year change
along the study area. Uncertainty in the quantities shown is difficult to estimate;however,given the
absolute magnitudes of the quantities and the potential variability in the area,professional
experience indicates that long term average quantities could vary from those given by as much as
100%. A longer period of measurement would help to reduce the uncertainties in estimating long
term volume changes. Shoreline change modeling would also help refine the assumptions of
longshore transport and long term shoreline data would verify assumptions and increase confidence
in the conclusions.
29
APPENDIX A
Transect Plots
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APPENDIX B
Corrected Survey Monument Coordinates
Horizontal coordinates in New York,Long Island Lambert State Plane Coordinates,NAD83
Elevations in NAVD88
LINE NORTHING EASTING ELEVATION SURVEY
A16AZ 304942.07 1373141.28 21.44 S98
A16D 304960.30 1373128.58 8.85 S99
A16 304965.23 1373125.24 5.86 S98
A15AZ 305365.42 1374017.10 61.61 S99
A15AZD 305402.04 1373991.12 24.83 S98
A15 305430.05 1373971.37 7.37 S98
A15D 305430.50 1373971.34 7.20 S99
A14AZD 305895.92 1374954.59 32.76 S99
A14AZ 305924.35 1374934.67 7.69 S98
A14D 305928.35 1374931.95 6.65 S99
A14 305939.47 1374924.06 6.21 S98
A13AZD 306465.01 1375790.51 28.39 S99
A13AZ 306483.64 1375777.86 16.22 S98
A13D 306488.80 1375774.31 8.96 S99
A13 306498.19 1375767.83 6.28 S98
Al2AZD 307038.07 1376622.53 39.93 S99
Al2AZ 307066.35 1376602.55 14.30 S98
Al2D 307073.44 1376597.71 6.14 S99
Al2 307085.75 1376588.95 4.39 S98
Al1AZD 307643.34 1377430.57 43.68 S99
AlIAZ 307672.46 1377409.76 20.17 S98
All 307689.41 1377397.77 6.26 S98
A11D 307690.05 1377397.22 6.25 S99
l0AZD 308287.34 1378202.06 37.37 S99
AIOAZ 308318.45 1378180.15 11.64 S98
AIOD 308323.56 1378176.80 7.15 S99
A10 308336.13 1378167.81 4.90 S98
A9AZD 308912.46 1378998.32 30.71 S99
A9AZ 308944.24 1378976.47 12.46 S98
A9D 368947.53 1378974.14 11.11 S99
A9 308960.13 1378965.65 5.47 S98
ABAZ 309269.48 1379368.12 8.29 S98
ABAZD 309271.68 1379366.94 8.19 S99
A8 309284.20 1379357.84 4.86 S98
A8D 309284.69 1379357.54 4.81 S99
A7AZ 309596.98 1379750.07 9.38 S98
A7 309618.43 1379735.17 7.34 S98
i
I
I .
I
A6AZ 309946.33 1380104.22 7.63 S98
A6 309985.58 1380076.71 7.76 S98
A5AZ 310355.37 1380428.55 9.62 S98
A5 310388.43 1380405.39 6.39 S98-
MAZ 310743.18 1380732.93 9.35 S98
A4 310764.18 1380718.27 8.40 - S98
A3AZ 311176.24 1381031.06 9.45 S98
A3 311216.13 1381003.17 8.60 S98
A2AZ 311537.18 1381314.20 10.48 S98
A2 311587.43 1381278.99 9.34 S98
AIAZ 311847.10 1381694.77 8.41 S98
Al 311949.91 1381622.79 10.64 S98
C1AZ 311926.78 1382386.18 8.48 S98
C1 311965.39 1382353.89 11.09 S98
C2AZ 312142.92 1382837.42 13.24 S98
C2 312181.99 1382804.47 15.08 S98
C3AZ 312470.43 1383221.64 15.88 S98
C3 312489.66 1383205.47 18.58 S98
C4AZ 312865.00 1383555.34 15.77 S98
C4 312882.84 1383540.64 7.65 S98
C5AZ 313250.50 1383885.92 28.86 S98
C5AZ 313250.57 1383885.91 28.86 S99
C5 313268.53 1383870.93 14.22 S98
C5D 313268.55 1383870.93 14.05 S99
C5PK 313275.91 1383864.64 10.15 S99
C6AZ 313679.22 1384244.44 13.52 S98
C6AZ 313679.28 1384244.31 13.40 S99
C6 313695.32 1384230.80 8.05 S98
C7AZD 314001.29 1384553.71 25.99 S99
C7AZ 314016.86 1384540.87 12.92 S98
C7D 314021.42 1384537.09 9.61 S99
C7 314034.25 1384526.24 8.29 S98
C8AZ 314293.30 1384912.76 18.45 S98
C8AZ 314293.54 1384912.51 18.36 S99
C8 314307.26 1384901.16 11.28 S98
C8 314307.33 1384901.14 11.29 S99
C9AZD 314580.24 1385378.46 34.65 S99
C9AZ 314601.47 1385360.77 15.24 S98
0 314621.90 1385343.92 5.03 S98
C9D 314621.96 1385344.00 5.01 S99
C10AZD 314925.35 1385765.60 33.17 S99
C10AZ 314940.63 1385755.14 14.20 S98
C10D 314946.70 1385749:98 7.06 S99
C10PK 314953.08 1385718.11 10.24 S99
C10 314958.81 1385739.88 5.89 S98
C11AZ 315323.26 1386057.25 30.55 S98
C11 315352.19 1386033.05 6.26 S98
C12AZ 315660.95 1386424.71 31.21 S98
C12 315690.66 1386400.61 7.24 S98
C13AZ 316401.62 1387219.63 28.26 S99
C13AZ 316401.70 . 1387219.67 28.30 S98
C13 316423.90 1387200.99 8.18 S98
C13 316423.95 1387200.98 8.19 S99
C14AZ 317076.17 1387978.81 23.69 S99
C14AZ 317076.20 1387978.86 23.79 S98
C14 317095.34 1387962.61 8.24 S99
C14 317095.34 1387962.66 8.21 S98
C15AZ 317662.47 1388660.06 17.27 S98
C15AZ 317662.55 1388660.03 17.25 S99
C15D 317675.25 1388649.71 9.76 S99
C15 317687.45 1388639.44 7.41 S98
C16AZ 318326.49 1389408.07 16.00 S98
C16AZD 318326.59 1389408.75 16.72 S99
C16D 318349.15 1389389.86 7.87 S99
C16 318349.20 1389389.16 7.13 S98
'C17AZD 318994.90 1390147.79 52.80 S99
C17AZ 319038.25 1390112.61 10.50 S98
C17D 319038.31 1390112.66 10.57 S99
C17 319056.48 1390097.70 6.09 S98
C18AZD 319610.24 1390941.76 40.41 S99
C18D 319639.37 1390917.40 9.09 S99
C18AZ 319639.41 1390917.47 9.02 S98
C18 319657.76 1390902.30 5.57 S98
C19AZ 320250.80 1391759.10 12.64 S99
C 19AZ 320250.81 1391759.05 12.72 S98
C19D 320258.41 1391752.77 10.10 S99
C19 320264.30 1391747.83 6.00 S98
C20AZ 320750.70 1392400.77 14.26 S98
C20 320791.45 1392366.63 13.33 S98
MAZE 321558.98 1394252.94 33.70 S99
EIAZ 321563.69 1393239.49 13.48 F98
EIAZ 321563.72 1393239.50 13.44 S98
E1PK 321578.05 1393235.96 9.12 S99
E1D 321580.42 1393235.11 6.11 S99
E1D 321580.55 1393234.42 6.22 F98
E1 321581.20 1393234.39 5.33 S98
E2AZ 321573.13 1394248.90 26.07 S99
E2AZ 321573.21 1394248.96 25.96 S98
E2D 321600.92 1394236.44 7.92 S99
E2D 321600.94 1394236.42 7.90 F98
E2 321607.47 1394233.94 6.56 S98
E3AZ 321893.38 1395218.13 26.88 S98
E3AZ 321893.41 1395218.15 27.00 F98
E3AZ 321893.50 1395218.15 26.97 S99
E3PK 321922.50 1395205.54 10.74 S99
E3 321924.75 1395204.42 6.51 F98
E3 321924.86 1395204.53 6.47 S99
E3 321924.96 1395204.49 6.41 S98
E4AZD 322307.26 1396187.88 34.58 F98
E4AZD 322307.47 1396187.91 34.56 S99
E4AZ 322329.09 1396178.30 18.37 S98
E4D 322345.29 1396171.43 7.03 F98
E4D 322345.41 1396171.48 7.02 S99
E4 322348.97 1396169.85 6.65 S98
E5AZ 322920.65 1397114.54 36.25 F98
E5AZ 322920.73 1397114.63 36.28 S98
E5AZ 322920.84 1397114.62 36.21 S99
E5 322955.01 1397099.20 10.92 F98
E5 322955.09 1397099.27 10.88 S99
E5 322955.10 1397099.19 10.90 S98
E5PK 322959.62 1397097.15 9.60 S99
E6AZD 323403.61 1398062.04 23.07 F98
E6AZ 323404.05 1398062.23 23.86 S98
E6AZD 323404.18 1398062.35 23.07 S99
E6 323430.65 1398050.58 7.05 F98
E6 323430.76 1398050.64 6.96 S98
E6 323430.77 1398050.59 6.97 S99
E7AZ 323704.58 1398847.92 24.31 S98
E7AZD 323705.61 1398847.40 23.87 F98
E7AZD 323705.87 1398847.31 23.75 S99
E7 323727.82 1398837.34 7.76 S99
E7 323727.99 1398837.42 7.71 S98
E8AZD 324223.16 1399718.57 31.37 F98
E8AZ 324226.23 1399716.61 28.00 S98
E8D 324257.07 1399702.99 7.07 F98
E8 324261.94 1399700.76 7.33 S98
E9AZD 324843.01 1400539.79 17.53 S99
E9AZD 324843.21 1400539.86 17.50 F98
E9D 324854.14 1400534.01 8.26 F98
E9D 324854.20 1400534.01 8.25 S99
E9AZ 324860.52 1400531.27 8.12 S98
E9 324882.77 1400521.51 5.53 S98
EIOAZ 325015.31 1401193.05 33.41 F98
EIOAZ 325015.32 1401193.03 33.16 S98
EIOAZ 325015.43 1401193.06 33.27 S99
ElOD 325050.52 1401184.55 8.02 F98
MOD 325050.60 1401184.61 7.92 S99
E10 325067.43 1401180.44 5.68 S98
E11AZ 325412.17 1402472.67 8.78 F98
E11AZ 325412.22 1402472.63 8.78 S98
E11AZ 325412.34 1402472.69 8.73 S99
Ell 325426.35 1402466.08 6.61 F98
Ell 325426.47 1402466.00 6.54 S99
Ell 325426.60 1402466.11 6.60 S98
E12AZ 325688.48 1403308.67 6.21 S99
E12AZ 325688.51 1403308.60 6.27 F98
E12AZ 325688.62 1403308.65 6.25 S98
E12 325704.33 1403301.73 4.71 F98
E12 325704.36 1403301.75 4.64 S99
E12 325704.45 '1403301.76 4.67 S98
E13AZ 326107.57 1404166.19 15.68 S98
3OLDAZ 326107.62 1404166.10 15.51 S99
3OLD 326125.91 1404149.71 8.69 S99
E13 326125.95 1404149.47 8.83 S98
E14AZ 326736.54 1404615.78 7.09 S98
E14 326781.22 1404595.81 8.89 S98
E14 326781.42 1404595.59 8.85 F98
E15AZ 327031.98 1404881.03 9.05 S98
E15AZ 327032.29 1404880.56 8.99 F98
E15 327112.75 1404797.93 8.73 S98
E15 327112.85 1404798.34 8.72 F98
F1AZ 327350.60 1405564.51 12.72 S98
F1 327362.51 1405548.98 13.69 S98
F2AZ 327608.15 1405859.43 .8.07 F98
F2AZ 327608.30 1405859.34 8.14 S98
F2 327661.43 1405814.80 10.84 F98
F2 327661.57 1405814.83 10.88 S98
F3AZ 327948.27 1406081.48 9.41 F98
F3AZ 327948.49 1406081.26 9.48 S98
F3 327987.38 1406048.77 9.52 S98
F3 327987.54 1406048.73 9.48 F98
F4AZ 328273.63 1406333.83 13.84 S98
F4AZ 328273.84 1406333.28 13.76 F98
F4 328309.53 1406291.98 9.34 S98
F4 328309.58 1406291.50 9.26 F98
FSAZ 328609.89 1406622.13 12.99 F98
FSAZ 328610.07 1406622.02 13.02 S98
F5 328640.40 1406596.41 9.31 F98
F5 328640.42 1406596.64 9.38 S98
F6AZ 329038.90 1406898.54 15.16 S98
F6 '329055.54 1406874.92 10.11 S98
F7AZ 329351.98 1407139.21 15.13 898
F7 329377.52 1407117.75 15.43 S98
FBAZ 329783.66 1407468.71 14.48 S98
F8AZ 329783.72 1407468.82 14.46 F98
F8 329817.40 . 1407440.39 9.26 F98
F8 329817.90 1407440.08, 9.21 S98
F9AZ 330011.84 1407770.30 12.47 S98
F9AZ 330011.86 1407770.01 12.37 F98
F9 330045.55 1407741.90 13.60 F98
F9 330045.76 1407741.98 13.72 S98
FIOAZ 330388.60 1407999.98 14.50 F98
F10AZ 330388.79 1408000.16 14.57 S98
F10 330400.32 1407983.74 9.01 S98
F1O 330400.37 1407983.75 8.95 F98
F11AZ 330687.77 1408346.38 9.51 F98
F11AZ 330687.79 1408346.46 9.55 S98
Fll 330726.59 1408313.96 15.61 F98
Fll 330726.60 1408313.74 15.71 S98
F12AZ 331068.80 1408580.88 7.82 S98
F 12 331113.92 1408542.77 14.37 S98
F13AZ 331461.86 1408809.61 11.95 S98
F13 331481.98 1408791.37 16.77 S98
F14AZ 331842.67 1408935.66 11.71 S99
F14AZ 331842.67 1408935.69 11.73 S98
F14 331847.29 1408929.10 10.52 S99
F14 331847.36 1408929.11 10.54 S98
F14PK 331848.28 1408927.30 9.05 S99
F15AZ 332147.27 1409188.61 10.43 S98
F15AZ 332147.27 1409188.59 10.46 S99
F15AZ 332147.29 1409188.59 10.43 F98
F15 332177.85 1409143.11 9.64 F98
F15 332177.88 1409143.12 9.66 S98
F15 332177.92 1409143.11 9.66 S99
F15PK 332179.85 1409140.28 10.50 S99
F 16AZ 332492.46 1409406.22 13.99 S98
F 16AZ 332492.52 1409406.10 14.00 F98
F16 332502.01 1409389.47 8.83 S99
F16 332502.10 1409389.53 8.88 F98
F16 332502.11 1409389.48 8.82 S98
F 17AZ 332903.57 1409600.22 9.84 S99
F 17AZ 332903.60 1409600.24 9.90 F98
F17AZ 332903.62 1409600.24 9.85 S98
F17 332924.55 1409569.21 8.57 S99
F17 332924.57 1409569.27 8.60 F98
F17 332924.61 1409569.25 8.52 S98
F18AZ 333287.56 1410058.82 10.54 S99.
F18AZ 333287.58 1410058.89 10.50 S98
F18AZ 333287.67 1410058.90 10.52 F98
F18 333335.68 1409961.47 11.00 S98
F18 333335.69 1409961.43 10.93 S99
F18 333335.91 1409961.54 10.97 F98
F19AZ 333706.75 1410213.52 9.24 S99
F19AZ 333706.83 1410213.62 9.19 S98
F 19 333731.91 _ 1410175.86 11.16 S99
F19 333732.03 1410175.90 11.09 S98
F20AZ 333894.49 1410345.69 9.08 S98
F20 333924.86 1410292.06 11.38 S99
F20 333924.88 1410292.16 11.46 S98
F21AZD 334296.94 1410588.13 9.50 S99
F21AZ 334298.17 1410586.68 9.37 S98
F21AZ 334298.26 1410586.56 9.32 F98
F21 334342.48 1410521.23 9.41 S98
F21 334342.54 1410521.25 9.40 S99
F21 . 334342.61 1410521.15 9.44 F98
F22AZD 334662.76 1410768.97 8.68 S99.
F22AZ 334662.77 1410769.02 8.72 F98
F22AZ 334662.77 1410769.07 8.80 S98
F22 334701.79 1410711.47 9.00 S98
F22 334701.83 1410711.41 8.87 S99
F22 334701.85 1410711.40 8.96 F98
F23AZ 335081.91 1410958.73 11.36 S98
F23AZ 335081.92 1410958.74 11.28 S99
F23AZ 335081.97 1410958.75 11.32 F98
F23 335093.86 1410937.87 9.77 S99
F23 335093.89. 1410937.88 9:83 S98
F23 335093.95 1410937.84 9.81 F98
F24AZ 335357.96 1411115.51 10.76 S99
F24AZ 335357.98 1411115.48 10.87 S98
F24AZ 335358.00 1411115.40 10.83 F98
F24D 335382.11 1411079.75 10.72 S99
F24 335387.61 1411071.59 9.67 S98
F24 335387.76 1411071.49 9.65 F98
F25AZ 335655.27 1411385.84 7.96 S98
F25AZ 335655.35 1411385.80 7.86 S99
F25 335731.24 1411273.97 9.60 S98
F25 335731.28 1411273.93 9.52 S99
F26AZ 336014.60 1411391.58 11.62 S99
F26AZ 336014.65 1411391.65 11.69 S98
F26 336030.45 1411367.53 8.68 S98
F26 336030.46 1411367.62 8.56 S99
F27AZ 336354.91 1411634.81 5.53 S98
F27AZ 336354.98 1411634.84 5.41 S99
F27 336401.49 1411556.31 8.14 S98
F27 336401.53 1411556.23 8.03 S99
F28AZ 337345.51 1411884.90 11.40 S99
F28AZ 337345.58 1411884.94 11.49 S98
F28 337352.19 1411866.58 9.38 S98
F28 337352.20 1411866.57 9.21 S99
F29AZ 338261.56 1412201.39 19.75 S99
F29AZ 338261.62 1412201.38 19.79 S98
F29 338277.75 1412190.25 8.57 S98
F29 338277.76 1412190.31 8.66 S99
APPENDIX C
Aerial Photography
Responses to Comments on Draft Report
From
New York State Department of State
Division of Coastal Resources and Waterfront Revitalization
1. The Introduction(p. 2)states correctly that the objective is to increase the understanding of coastal
processes on the designated shoreline in Southold. It,seems in some cases your understanding of the
meaning of the data may not be clear to the layperson. Specifically, a lay person may have an
unwarranted confidence in the sediment budget, estimates of longshore drift quantities, etc. The report
should include a paragraph describing.what we know,how the available data has improved our
knowledge,the limits of our understanding, and the potential uncertainty/variability in the data.
Perhaps the introduction would be a good place to insert this information.
An additional paragraph has been added to the Introduction.
2. Thank you for your discussion(p. 16)of the corrections necessary for some of the Year 1 monuments.
Is it possible to issue an addendum to the Year 1 report which would explain these corrections and
which monuments/data they are applicable to? I am concerned that someone could draw erroneous
information from the Year 1 reports if they are unaware of the situation. Is it possible to obtain two(2)
updated digital copies of the Year 1 Bathymetric survey?
See the new Addendum Report. The offshore bathymetry did not change due to the corrections
3. I'm not certain what we agreed to during our earlier telephone discussion on the report maps. Will we
be getting maps at the same scale of those issued for the Year 1 report?
Maps for the new mapping products are being provided with the final report at the same scale as those
provided with the Year 1 report.
4. On page 23 you cite"...large volume changes in the deeper portions of the transect which are probably
not related to shoreline processes." Can you describe which areas this occurred in? Do you have any
possible suggestions for the causes? Could these changes be affecting the near shore area?
See the additional discussion on page 23 of the report.
5. The discussion of survey accuracy on page 26 is appreciated. For the offshore portion of the surveys,
if the survey error is random,wouldn't subsequent points tend to cancel out individual data point error?
It would be helpful if you added an explanation of this to the discussion. Also,it would be helpful if
you added a discussion of the overall accuracy of the bathymetric survey, and the implications for the
related quantity estimates. In this case,random error of the data points should tend to cancel out
overall quantity error.
See the additional discussion on page 26
6. Sediment Budget
a. When we spoke on the phone concerning sediment budget errors you indicated coming within
100%error on the estimates was extremely accurate given the amount of data available. The
report should explain the limits of confidence in these estimates.
See the additional discussion in the last paragraph of page 29.
b. The sediment budget proceeds from west to east. Therefore, if an error occurred on the west
end,it would be carried through the entire budget. We should have a note on this in the report.
Each segment of the shoreline was balanced based on a reasonable interpretation of the data
available. The 16,000 cy was carried throughout the analysis because it is the only reasonable
longshore transport estimate available without further analysis. If the numbers from the west
end of the project were not reasonable they could not have been used to balance subsequent
segments to the east.
c. Is it possible that there is a systematic error in the measurements for the area west of Mattituck
which leads to the 16,000 cubic yard loss? Alternatively, is it possible that some of this
material moved west, and the deficit is partially due to the inability of material to move from
the east side to the west of the jetties, creating a discontinuity in the budget?
As noted in the report, because of the extremely limited data available numerous assumptions
had to be made in developing the sediment budget. Therefore, there are numerous alternative
scenarios that could be proposed. Additional information and analysis is required to increase
the confidence in the budget.
d. Is it possible that changes in shoreline orientation or morphology, such as at Duck Pond Point,
or so called False Point(lying between Duck Pond Point and Goldsmith Inlet),would induce
changes in sediment carrying capacity,and affect the sediment budget?
Yes. As noted in.the report on page 29, longshore modeling is required to refine this.
e: What are the best ways to refine the sediment budget,eliminate some or all of the unknowns,
and improve the estimates?
The paragraph added to the Introduction in response to Comment 1 (above)addresses this
comment. The paragraph was repeated at the end of the Sediment Budget analysis to reinforce the
caution in using the sediment budget.
ADDENDUM
SHORELINE MONITORING
SOUTHOLD TOWN LINE TO HORTON POINT
Corrections to Control Monumentation Elevations
Spring 1998
for
TOWN OF SOUTHOLD, NEW YORK
TOWN HALL, 53095 MAIN ROAD
SOUTHOLD, NEW YORK 11971
by
OFFSHORE & COASTAL TECHNOLOGIES, INC. - EAST COAST
Engineering for the Marine Environment
P.O. Bog 1368
Chadds Ford, Pennsylvania 19317
Tel: (610) 361-0424 Fag: (610) 361-0425
30 December 1999
ADDENDUM
Corrections to Control Monumentation Elevations
The original control survey was conducted with Real Time Kinematic(RTK)Global Positioning
System(GPS)suvey techniques. The GPS was calibrated using USGS monuments in the local area for
vertical and horizontal control. The GPS calibration was consistent with a previous control survey
conducted by TVGA Engineering("GPS REPORT,Town of Southold Beach,Survey Monuments,Duck
Pond Point to Horton Point,"TVGA Job Number 950129)for the New York Department of State. This
previous survey provided horizontal and vertical control for the 15 profile line monuments and azimuth
points established previously. The current survey used the same control monuments as did the TVGA GPS
calibration,as well as tying into three of the older profile monuments using coordinates from the TVGA
report. The calibration provided consistent results with the TVGA survey.
.The GPS control survey was conducted in coordination with a Professional Land Surveyor. While
conducting the Spring 1999 beach profile survey,which involved replacement of many survey control stakes,
discrepancies were discovered in some of the original monument elevations. It was discovered that the GPS
ellipsoidal,or uncalibrated,elevations were used erroneously for controlling the 1998 data. For the
monuments set in the Spring of 1998,the errors ranged from 0.05 at the eastern end of the project to 1.20
feet at the western end of the project. The errors were not obvious in the first year of surveys because no
prior data,other than uncontrolled NYSDOS data,were available for comparison. Horizontal coordinates of
the monuments did not require corrections.
Once corrected monument elevations were developed,all survey data was adjusted to reflect the
correct monument elevations.
It should be noted that the GPS corrections on the eastern portion of the shoreline in the Kenny's
Beach area are on the order of 0.05. Monuments from this area were also used to correct the fathometer
measurements for water level variations,so that the corrections to the offshore bathymetric surveys are
negligible as compared to other sources of uncertainty in the bathymetric data.
The coordinate table provided for monuments in the Spring 1998 survey report included the
uncorrected elevations. The coordinates for all monuments,including those originally set in the Spring of
1998 and those reset in subsequent surveys are included in the following table with the corrected elevations.
Corrected Survey Monument Coordinates
Horizontal coordinates in New York,Long Island Lambert State Plane Coordinates,NAD83,Feet.
Elevations in NAVD88,Feet.
LINE NORTHING EASTING ELEVATION SURVEY
DATE
A16AZ 304942.07 1373141.28 21.44 S98
A16D 304960.30 1373128.58 8.85 S99
A16 304965.23 1373125.24 5.86 S98
A15AZ 305365.42 1374017.10 61.61 S99
A15AZD 305402.04 1373991.12 24.83 S98
A15 305430.05 1373971.37 7.37 S98
A15D 305430.50 1373971.34 7.20 S99
A14AZD 305895.92 1374954.59 32.76 S99
A14AZ 305924.35 1374934.67 7.69 S98
A14D 305928.35 1374931.95 6.65 S99
A14 305939.47 1374924.06 6.21 S98
A13AZD 306465.01 1375790.51 28.39 S99
A13AZ 306483.64 1375777.86 16.22 S98
A13D 306488.80 1375774.31 8.96 S99
A13 306498.19 .1375767.83 6.28 S98
Al2AZD 307038.07 1376622.53 39.93 S99
Al2AZ 307066.35 1376602.55 14.30 S98
Al2D 307073.44 1376597.71 6.14 S99
Al2 307085.75 1376588.95 4.39 598.
AIIAZD 307643.34 1377430.57 43.68 S99
AlIAZ 307672.46 1377409.76 20.17 S98
All 307689.41 1377397.77 6.26 S98
A11D 307690.05 1377397.22 6.25 S99
AIOAZD 308287.34 1378202.06 37.37 S99
AIOAZ 308318.45 1378180.15 11.64 S99
AIOD 308323.56 1378176.80 7.15 S99
A10 308336.13 1378167.81 4.90 S98
A9AZD 308912.46 1378998.32 30.71 S99
A9AZ 308944.24 1378976.47 12.46 S98
A91) 308947.53 1378974.14 11.11 S99
A9 308960.13 1378965.65 5.47 S98
ABAZ 309269.48 1379368.12 8.29 S98
ABAZD 309271.68 1379366.94 8.19 S99
A8 309284.20 1379357.84 4.86 S98
A8D 309284.69 1379357.54 4.81 S99
A7AZ 309596.98 1379750.07 9.38 S98
A7 309618.43 1379735.17 7.34 S98
A6AZ 309946.33 1380104.22 7.63 S98
r
A6 309985.58 1380076.71 7.76 S98
A5AZ 310355.37 1380428.55 9.62 S98
A5 310388.43 1380405.39 6.39 S98
A4AZ 310743.18 1380732.93 9.35 S98
A4 310764.18 1380718.27 8.40 S98
A3AZ 311176.24 1381031.06 9.45 S98
A3 311216.13 1381003.17 8.60 S98
A2AZ 311537.18 1381314.20 10.48 S98
A2 311587.43 1381278.99 9.34 S98
AIAZ 311847.10 1381694.77 8.41 S98
Al 311949.91 1381622.79 10.64 S98
C1AZ 311926.78 1382386.18 8.48 S98
C1 311965.39 1382353.89 11.09 S98
C2AZ 312142.92 1382837.42 13.24 S98
C2 312181.99 1382804.47 15.08 S98
C3AZ 312470.43 1383221.64 15.88 S98
C3 312489.66 1383205.47 18.58 S98
C4AZ 312865.00 1383555.34 15.77 S98
C4 312882.84 1383540.64 7.65 S98
C5AZ 313250.50 1383885.92 28.86 S98
C5AZ 313250.57 1383885.91 28.86 S99
C5 313268.53 1383870.93 14.22 S98
C5D 313268.55 1383870.93 14.05 S99
C5PK 313275.91 1383864.64 10.15 S99
C6AZ 313679.22 1384244.44 13.52 S98
C6AZ 313679.28 1384244.31 13.40 S99
C6 313695.32 1384230.80 8.05 S98
C7AZD 314001.29 1384553.71 25.99 S99
C7AZ 314016.86 1384540.87 12.92 S98
C7D 314021.42 1384537.09 9.61 S99
C7 314034.25 1384526.24 8.29 S98
C8AZ 314293.30 1384912.76 18.45 S98
C8AZ 314293.54 1384912.51 18.36 S99
C8 314307.26 1384901.16 11.28 S98
C8 314307.33 1384901.14 11.29 S99
C9AZD 314580.24 1385378.46 34.65 S99
C9AZ 314601.47 1385360.77 15.24 S98
C9 314621.90 1385343.92 5.03 S98
C9D 314621.96 1385344.00 5.01 S99
C10AZD 314925.35 1385765.60 33.17 S99
C10AZ 314940.63 1385755.14 14.20 S98
C10D 314946.70 1385749.98 7.06 S99
C10PK 314953.08 1385718.11 10.24 S99
C10 314958.81 1385739.88 5.89 S98
C11AZ 315323.26 1386057.25 30.55 S98
C11 315352.19 1386033.05 6.26 S98
C12AZ 315660.95 1386424.71 31.21 S98
C12 315690.66 1386400.61 7.24 S98
C13AZ 316401.62 1387219.63 28.26 S99
C13AZ 316401.70 1387219.67 28.30 S98
C13 316423.90 1387200.99 8.18 S98
C13 316423.95 1387200.98 8.19 S99
C14AZ 317076.17 1387978.81 23.69 S99
C14AZ 317076.20 1387978.86 23.79 S98
C14 317095.34 1387962.61 8.24 S99
C14 317095.34 1387962.66 8.21 S98
C15AZ 317662.47 1388660.06 17.27 S98
C15AZ 317662.55 1388660.03 17.25 S991-
C15D 317675.25 1388649.71 9.76 S99
C15 317687.45 1388639.44 7.41 S98
C16AZ 318326.49 1389408.07 16.00 S98
C16AZD 318326.59 1389408.75 16.72 S99
C16D 318349.15 1389389.86 7.87 S99
C16 318349.20 1389389.16 7.13 S98
C 17AZD 318994.90 1390147.79 52.80 S99
C17AZ 319038.25 1390112.61 10.50 S98
C17D 319038.31 1390112.66 10.57 S99
C17 319056.48 1390097.70 6.09 S98
C 18AZD 319610.24 1390941.76 40.41 S99
C18D 319639.37 1390917.40 9.09 S99
C18AZ 319639.41 1390917.47 9.02 S98
C18 319657.76 1390902.30 5.57 S98
C19AZ 320250.80 1391759.10 12.64 S99
C19AZ 320250.81 1391759.05 12.72 S98
C19D 320258.41 1391752.77 10.10 S99
C 19 320264.30 1391747.83 6.00 S98
C20AZ 320750.70 1392400.77 14.26 S98
C20 320791.45 1392366.63 13.33 S98
MAZE 321558.98 1394252.94 33.70 S99
EIAZ 321563.69 1393239.49 13.48 F98
EIAZ 321563.72 1393239.50 13.44 S98
E1PK 321578.05 1393235.96 9.12 S99
EID 321580.42 1393235.11 6.11 S99
E1D 321580.55 1393234.42 6.22 F98
E1 321581.20 1393234.39 5.33 S98
E2AZ 321573.13 1394248.90 26.07 S99
E2AZ 321573.21 1394248.96 25.96 S98
E2D 321600.92 1394236.44 7.92 S99
E2D 321600.94 1394236.42 7.90 F98
E2 321607.47 1394233.94 6.56 S98
E3AZ 321893.38 1395218.13 26.88 S98
E3AZ 321893.41 1395218.15 27.00 F98
E3AZ 321893.50 1395218.15 26.97 S99
E3PK 321922.50 1395205.54 10.74 S99
E3 321924.75 1395204.42 6.51 F98
E3 321924.86 1395204,53 6.47 S99
E3 321924.96 1395204.49 6.41 S98
E4AZD 322307.26 1396187.88 34.58 F98
E4AZD 322307.47 1396187.91 34.56 S99
E4AZ 322329.09 1396178.30 18.37 S98
E4D 322345.29 1396171.43 7.03 F98
E4D 322345.41 1396171.48 7.02 S99
E4 322348.97 1396169.85 6.65 S98
E5AZ 322920.65 1397114.54 36.25 F98
E5AZ 322920.73 1397114.63 36.28 S98
E5AZ 322920.84 1397114.62 36.21 S99
E5 322955.0.1 1397099.20 10.92 F98
E5 322955.09 1397099.27 10.88 S99
E5 322955.10 1397099.19 10.90 S98
E5PK 322959.62 1397097.15 9.60 S99
E6AZD 323403.61 1398062.04 23.07 F98
E6AZ 323404.05 1398062.23 23.86 S98
E6AZD 323404.18 1398062.35 23.07 S99
E6 323430.65 1398050.58 7.05 F98
E6 323430.76 1398050.64 6.96 S98
E6 323430.77 1398050.59 6.97 S99
E7AZ 323704.58 1398847.92 24.31 S98
E7AZD 323705.61 1398847.40 23.87 F98
E7AZD 323705.87 1398847.31 23.75 S99
E7 323727.82 1398837.34 7.76 S99
E7 323727.99 1398837.42 7.71 S98
E8AZD 324223.16 1399718.57 31.37 F98
E8AZ 324226.23 1399716.61 28.00 S98
E8D 324257.07 1399702.99 7.07 F98
E8 324261.94 1399700.76 7.33 S98
E9AZD 324843.01 1400539.79 17.53 S99
E9AZD 324843.21 1400539.86 17.50 F98
E9D 324854.14 1400534.01 8.26 F98
E9D 324854.20 1400534.01 8.25 S99
E9AZ 324860.52 1400531.27 8.12 S98
E9 324882.77 1400521.51 5.53 S98
EIOAZ 325015.31 1401193.05 33.41 F98
EIOAZ 325015.32 1401193.03 33.16 S98
EIOAZ 325015.43 1401193.06 33.27 S99
EIOD 325050.52 1401184.55 8.02 F98
MOD 325050.60 1401184.61 7.92 S99
E10 325067.43 1401180.44 5.68 S98
E11AZ 325412.17 1402472.67 8.78 F98
El1AZ 325412.22 1402472.63 8.78 S98
E11AZ 325412.34 1402472.69 8.73 S99
Ell 325426.35 1402466.08 6.61 F98
Ell 325426.47 1402466.00 6.54 S99
Ell 325426.60 1402466.11 6.60 S98
E12AZ 325688.48 1403308.67 6.21 S99
E12AZ 325688.51 1403308.60 6.27 F98
E12AZ 325688.62 1403308.65 6.25 S98
E12 325704.33 .1403301.73 4.71 F98
E12 325704.36 1403301.75 4.64 S99
E12 325704.45 1403301.76 4.67 S98
E13AZ 326107.57 1404166.19 15.68 S98
30LDAZ 326107.62 1404166.10 15.51 S99
30LD 326125.91 1404149.71 8.69 S99
E13 326125.95 1404149.47 8.83 S98
E14AZ 326736.54 1404615.78 7.09 S98
E14 326781.22 1404595.81 8.89 S98
E14 326781.42 1404595.59 8.85 F98
E15AZ 327031.98 1404881.03 9.05 S98
E15AZ 327032.29 1404880.56 8.99 F98
E15 327112.75 1404797.93 8.73 S98
E15 327112.85 1404798.34 8.72 F98
F1AZ 327350.60 1405564.51 12.72 S98
F1 327362.51 1405548.98 13.69 S98
F2AZ 327608.15 1405859.43 8.07 F98
F2AZ 327608.30 1405859.34 8.14 S98
F2 327661.43 1405814.80 10.84 F98
F2 327661.57 1405814.83 10.88 S98
F3AZ 327948.27 1406081.48 9.41 F98
F3AZ 327948.49 1406081.26 9.48 S98
F3 327987.38 1406048.77 9.52 S98
F3 327987.54 1406048.73 9.48 F98
F4AZ 328273.63 1406333.83 13.84 S98
RAZ 328273.84 1406333.28 13.76 F98
F4 328309.53 1406291.98 9.34 S98
F4 328309.58 1406291.50 9.26 F98
F5AZ 328609.89 1406622.13 12.99 F98
F5AZ 328610.07 1406622.02 13.02 S98
F5 328640.40 1406596.41 9.31 F98
F5 328640.42 1406596.64 9.38 S98
F6AZ 329038.90 1406888.54 15.16 S98
F6 329055.54 1406874.92 10.11 S98
F7AZ 329351.98 1407139.21 15.13 S98
F7 329377.52 1407117.75 15.43 S98
F8AZ 329783.66 1407468.71 14.48 S98
F8AZ 329783.72 1407468.82 14.46 F98
F8 329817.40 1407440.39 9.26 F98
F8 329817.90 1407440.08 9.21 S98
F9AZ 330011.84 1407770.30 12.47 S98
F9AZ 330011.86 1407770.01 12.37 F98
F9 330045.55 1407741.90 13.60 F98
F9 330045.76 1407741.98 13.72 S98
F10AZ 330388.60 1407999.98 14.50 F98
F10AZ 330388.79 1408000.16 14.57 S98
F10 330400.32 1407983.74 9.01 S98
F10 330400.37 1407983.75 8.95 F98
F11AZ 330687.77 1408346.38 9.51 F98
F11AZ 330687.79. 1408346.46 9.55 S98
Fll 330726.59 1408313.96 15.61 F98
Fll 330726.60 1408313.74 15.71 S98
F12AZ 331068.80 1408580.88 7.82 S98
F12 331113.92 1408542.77 14.37 S98
F13AZ 331461.86 1408808.61 11.95 S98
F13 331481.98 1408791.37 16.77 S98
F14AZ 331842.67 1408935.66 11.71 S99
F14AZ 331842.67 1408935.69 11.73 S98
F 14 331847.29 1408929.10 10.52 S99
F14 331847.36 1408929.11 10.54 S98
F14PK 331848.28 1408927.30 9.05 S99
F15AZ 332147.27 1409188.61 10.43 S98
F15AZ 332147.27 1409188.59 10.46 S99
F15AZ 332147.29 1409188.59 10.43 F98
F 15 332177.85 1409143.11 9.64 F98
F 15 332177.88 1409143.12 9.66 S98
F 15 332177.92 1409143.11 9.66 S99
F15PK 332179.85 1409140.28 10.50 S99
F16AZ 332492.46 1409406.22 13.99 S98
F 16AZ 332492.52 1409406.10 14.00 F98
F16 332502.01 1409389.47 8.83 S99
F16 332502.10 1409389.53 8.88 F98
F16 332502.11 1409389.48 8.82 . S98
F17AZ 332903.57 1409600.22 9.84 S99
F17AZ 332903.60 1409600.24 9.90 F98
F17AZ 332903.62 1409600.24 9.85 S98
F17 332924.55 1409569.21 .8:57 S99
F17 332924.57 1409569.27 8.60 F98
F17 332924.61 1409569.25 8.52 S98
F18AZ_ 333287.56 1410058.82 10.54 S99
F18AZ 333287.58 1410058.89 10.50 S98
F18AZ 333287.67 1410058.90 10.52 F98
F18 333335.68 1409961.47 11.00 S98
F18 333335.69 1409961.43 10.93 S99
F18 333335.91 1409961.54 10.97 F98
F19AZ 333706.75 1410213.52 9.24 S99
F 19AZ 333706.83 1410213.62 9.19 S98
F19 333731.91 1410175.86 11.16 S99
F19 333732.03 1410175.90 11.09 S98
F20AZ 333894.49 . 1410345.69 9.08 S98
F20 333924.86 1410292.06 11.38 S99
F20 333924.88 1410292.16 11.46 S98
F21AZD 334296.94 1410588.13 9.50 S99
F21AZ 334298.17 1410586.68 9.37 S98
F21AZ 334298.26 1410586.56 9.32 F98
F21 334342.48 1410521.23 9.41 S98
F21 334342.54 1410521.25 9.40 S99
F21 334342.61 1410521.15 9.44 F98
F22AZD 334662.76 1410768.97 8.68 S99
F22AZ 334662.77 1410769.02 8.72 F98
F22AZ 334662.77 1410769.07 8.80 S98
F22 334701.79 1410711.47 9.00 S98
F22 334701.83 1410711.41 8.87 S99
F22 334701.85 1410711.40 8.96 F98
F23AZ 335081.91 1410958.73 11.36 S98
F23AZ 335081.92 1410958.74 11.28 S99
F23AZ 335081.97 1410958.75 11.32 F98
F23 335093.86 1410937.87 9.77 S99
F23 335093.89 1410937.88 9.83 S98
F23 335093.95 1410937.84 9.81 F98
F24AZ 335357.96 1411115.51 10.76 S99
F24AZ 335357.98 1411115.48 10.87 S98
F24AZ 335358.00 1411115.40 10.83 F98
F24D 335382.11 1411079.75 10.72 S99
F24 335387.61 1411071.59 9.67 S98
F24 335387.76 1411071.49 9.65 F98
F25AZ 335655.27 1411385.84 7.96 S98
F25AZ 335655.35 1411385.80 7.86 S99
F25 335731.24 1411273.97 9.60 S98
F25 335731.28 1411273.93 9.52 S99
F26AZ 336014.60 1411391.58 11.62 S99
F26AZ 336014.65 1411391.65 11.69 S98
F26 336030.45 1411367.53 8.68 S98
F26 336030.46 1411367.62 8.56 S99
F27AZ 336354.91 1411634.81 5.53 S98
F27AZ 336354.98 1411634.84 5.41 S99
F27 336401.49 1411556.31 8.14 S98
F27 336401.53 1411556.23 8.03 S99
F28AZ 337345.51 1411884.90 11.40 S99
F28AZ 337345.58 1411884.94 11.49 S98
F28 337352.19 1411866.58 9.38 S98
F28 337352.20 1411866.57 9.21 S99
F29AZ 338261.56 1412201.39 19.75 S99
F29AZ 338261.62 1412201.38 19.79 S98
F29 338277.75 .1412190.25 8.57 S98
F29 338277.76 1412190.31 8.66 S99
APPENDIX A
Transect Plots
SOUTHOLD, LONG ISLAND
Al
10
0
. o0
Co
z -10
c
-20
Cu
a)
W -30
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A2
20
10
00
00
� 0 - 777
Q
z
-10
o --
> -20
a)
w
-30
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A3
20
10
00
00
0
Q
z
-10
o
> -20
a)
w
-30 --- ---- ----
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A4
10
00 0
Co
Q ,
z
-10
c
0
Cu -
w _20
-30 - ---- --- --
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A5
10
00 0
0
Q
z
-10 l
c
0
Cu
a�
W -20 '
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A6
10
0
0 ,t
0
z
00
-20
Cu
a)
w -30 -
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
I
SOUTHOLD, LONG ISLAND
A7
60
00
40
00
0
Q 20
z
C
0 0
Cu
a) -
w -20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A8
120
100
�
80
0
Q 60
z
40
c
20
Cu
w 0
-20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A9
150
�
100
0
Q
z
50
c
0
Cu
w 0
-50
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
Al
200
150
00
00
0
z 100
c
50
Cu
a�
w 0
-50
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
-- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A10
120
100
�
80
0
Q 60
z
40
c
20
Cu
w 0
-20 --- -- ------- -----
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
Al2
120
100
0000 80
o -
Q 60
z
40
r
20
Cu
w 0
-20 - --------
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A13
80
60
00
00
40
Q
z
20
c
0
0
a)
w
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A14
120
100
00 80
00
0
Q 60
z
40
c
20
Ca
w 0
-20 - ----------
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A15
120
100
�
80
0
Q 60
z
� 40
c
20
Cu
w 0
-20 --------
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
A16
80
00
60
00
0
z 40
c
20
Cu
m
w p
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C1
15
10
0 5
0
Q ,
z
-5
c
Cu
-10
w -15
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
c2
20
�
10
0
Q
z
0
C
0
Cu
w -10
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C3
20
10
00
00
0
z 0
-10 _ -
cc
>
a) '
w
-20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SO THOLD, LONG ISLAND
C4
30
20
00
00
C, 10
Q
z
0
c
0
> -10
m -
w
-20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C5
40
30
00
0 20
Q
z 10
0
0
6,
Cu
-10
w -
-20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
i
SOUTHOLD, LONG ISLAND
C6
80
60
00
00
C' 40
Q
z
20
c
0
0
a)
w
-20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
c7
60
40
00
00
0
z 20
c
0 0
Cu
a)
w -20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
cs
80
60
00
00
> 40
Q
z
20
c
0
> 0
a)
w
-20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C9
80
60
0
00
40
Q
z
20
c
0
> 0
a�
w
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C10
40
30
00
0 20
Q
z 10
0
0
c�
m -10
w
-20 -
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C11
60
00
40
00
0
z 20
c
0 0
c�
a�
w -20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C12
80
60
00
40
Q
z
20
c
0
a�
0
w
-20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C13
40
30
00
0 20
z 10
�
0 0
ca
ai -10 - ----
w
-20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C14
60
0
40
0
0
z 20
c
0 0
Cu
a) -- - --
w -20 _
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C15
80
60
00
0
40
Q
z
20
c
0
> 0
a)
-20 ---
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C16
80
60
00
00
40
Q
z
20
c
0
> 0
a)
w � _
-20 _ _
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
—� Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND .
C17
60
00
40
ao
0
Q 20
z
c
0 0
Cu
>
a)
w -20 - --- ----
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C18
60
00
40
00
0
z 20
c
0 0
Cu
-20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C19
60
00 40
_ o -
Q
z
20
c
0
c�
w 0
-20 - -
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
C20
15
10
000 5
o
Q
0
z
-5
c
-10
Cu
> -
w -15
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
�— Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E1
80
60
00
00
40
Q
z
20
c
0
> 0
a�
w --
-20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E2
60
00 000 40
0
Q
z
= 20
c
0
Cu
w 0
-----------------
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
-� Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E3
80
00 60
00
z 40
c
0 20
Cu
a�
w 0
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E4
80
60
00
00
> 40
Q
z
= 20
c
0
> 0
a�
w
-20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
�— Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E5
100
80
00
0 60
z 40
V
0 20
Cu
a) 0
w
-20 -
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
—� Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E6
80
60
Co
00
40
Q
z
20
c
0
> 0
0
w
-20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E7
80
00
60
00
- o
Q 40
z
20
Cu
>
a)
w 0
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E8
80
00
60
00
Q 40
z
20
Cu
a)
w 0
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E9
50
40
00
0 30
z 20
V-
0 10
Cu
0
W
-10 -
-20
-250 0 250 500 750 1000 1250 1500 1750 - 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E10
40
30
00
. 00
20
Q
z
10
c
0
:6-0
> 0
a�
w
-10
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
I
SOUTHOLD, LONG ISLAND
E11
40
30
00
00
20
Q
z
10
c
0
Cu 0
a�
w
-10
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E12
50
40
00
0 30
Q
z 20
10
0
4-0
Cu
0
w
-10 -
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E13
50
40
00
0 30
z 20
0 10
Cu
m 0
w
-10
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E14
10
5
00
0 0
a
z -5
o -10
u
aa) -15
w
-20 -
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
�- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
E15
10
5
00
0 0
Q '
-5 z ,
o -10
Cu
m -15
w _-
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F1
15
10
�
5
0
Q 0
z
-5
c
-10
Cu
a)
w -15
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
—� Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F2
15
10
00 5
0
0
Q 0
z
-5
c
Cu
-10
w -15
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F3
15
10
�
5
o
Q 0
z
-5
-10
a)
w -15
-20 _---
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F4
15
10
00 5
0
Q 0
z
-5
-10
Cu
w -15
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F5
15
10
00
0 5
z 0 .
o -5 CA
cc
aa) -10
w
-15
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F6
15
10
00
0 5
z 0
o -5
Cu '
ai -10
w
-15
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
—� Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F7
15
10
0
00 5
Q
z 0
o -5
c�
a -10
w
-15 -
-20
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F8
20,
00
10
00
Q 0
z
-10
cu
a)
w -20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F9
20
10
00
00
Q 0
z
-10
Cu
a)
w -20 ,
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F10
20
10
ao
ao
0
Q 0
z
C
-10
cu
a')
w -20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F11
20
10
00
00
0
Q 0
z
-10
Cu
a)
w -20
-30
-250 0 250. 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F12
20
00
00
10
0
0 -10
ca
a)
w -20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F13
20
10
ao
Co
0
z 0
-10
Cu
a)
w -20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F14
20
10 \
00
00
0
Q 0
z
c
-10
cc
am
w -20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F16
20
10
00
00
0
z 0 ,
-10
ca
a)
w -20
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F17
10
5
00
0 0
Q '
z -5
c -10
o
ca ,
a) -15
w
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F18
10
5
ao \,
°O 0
z -5
o -10
c�
a -15
w
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F19
15.
10
�
5
0 -
Q 0
z
-5
Cu
-10
w -15
-20 - - -
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F20
15
10
0 5
0
Q 0
z
-5
-10
Ca
w -15
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
- Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F21
10
5
00
°O 0
o
z -5
o -10
Cu
-15
w
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F22
10
5
00
0 0
Q
z -5
o -10 Cu N
a) -15
w
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F23
10
5
ao
0 0
z -5
o -10
Cu
a -15
w '
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F24
15
10
0 5
0
Q 0
z
-5
c
-10
Cu
w -15 -- -
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F25
10
5
0
00 0
Q
z -5
o -10
:.�
Cu
ai -15
w
-20
-25
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F26
20
10
Co
Co
0
z 0
c
-10
>
a�
w -20 --
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F27
10
5 '
00 0
0
Q -5
z
-10
LP c
-15
Cu
w -20
-25
-30
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F28
60
40
00
00
0
z 20
c
0 0
Cu
a�
. 51 -20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
SOUTHOLD, LONG ISLAND
F29
40
�
20
Q
z
0
c
0
c�
w -20
-40
-250 0 250 500 750 1000 1250 1500 1750 2000
Distance From Origin, ft
Spring 1998 Fall 1998 ----- Spring 1999
APPENDIX B
Corrected Survey Monument Coordinates
Horizontal coordinates in New York, Long Island Lambert State Plane Coordinates, NAD83
Elevations in NAVD88
LINE NORTHING EASTING ELEVATION SURVEY
A16AZ 304942.07 1373141.28 21.44 S98
A16D 304960.30 1373128.58 8.85 S99
A16 304965.23 1373125.24 5.86 S98
A15AZ 305365.42 1374017.10 61.61 S99
A15AZD 305402.04 1373991.12 24.83 S98
A15 305430.05 1373971.37 7.37 S98
A15D 305430.50 1373971.34 7.20 S99
A14AZD 305895.92 1374954.59 32.76 S99
A14AZ 305924.35 1374934.67 7.69 S98
A14D 305928.35 1374931.95 6.65 S99
A 14 305939.47 1374924.06 6.21 S98
A13AZD 306465.01 1375790.51 28,39 S99
A13AZ 306483.64 1375777.86 16.22 S98
A13D 306488.80 1375774.31 8.96 S99
A13 306498.19 1375767.83 6.28 S98
Al2AZD 307038.07 1376622.53 39.93 S99
Al2AZ 307066.35 1376602.55 14.30 S98
Al2D 307073.44 1376597.71 6.14 S99
Al2 307085.75 1376588.95 4.39 S98
A11AZD 307643.34 1377430.57 43.68 S99
A 11 AZ 307672.46 1377409.76 20.17 S98
A11 307689.41 1377397.77 6.26 S98
A11 D 307690.05 1377397.22 6.25 S99
10AZD 308287.34 1378202.06. 37.37 S99
A10AZ 308318.45 1378180.15 11.64 S98
A10D 308323.56 1378176.80 7.15 S99
A10 308336.13 1378167.81 4.90 S98
A9AZD 308912.46 1378998.32 30.71 S99
A9AZ 308944.24 1378976.47 12.46 S98
A9D 308947.53 1378974.14 11.11 S99
A9 308960.13 1378965.65 5.47 S98
A8AZ 309269.48 1379368.12 8.29 S98
A8AZD 309271.68 1379366.94 8.19 S99
A8 309284.20 1379357.84 4.86 S98
A8D 309284.69 1379357.54 4.81 S99
A7AZ 309596.98 1379750.07 9.38 S98
A7 309618.43 1379735.17 7.34 S98
A6AZ 309946.33 1380104.22 7.63 S98
A6 309985.58 1380076.71 7.76 S98
A5AZ 310355.37 1380428.55 9.62 S98
A5 310388.43 1380405.39 6.39 S98
MAZ 310743.18 1380732.93 9.35 S98
A4 310764.18 1380718.27 8.40 S98
A3AZ 311176.24 1381031.06 9.45 S98
A3 311216.13 1381003.17 8.60 S98
A2AZ 311537.18 1381314.20 10.48 S98
A2 311587.43 1381278.99 9.34 S98
A1AZ 311847.10 1381694.77 8.41 S98
Al 311949.91 1381622.79 10.64 S98
C1AZ 311926.78 1382386.18 8.48 S98
C1 311965.39 1382353.89 11.09 S98
C2AZ 312142.92 1382837.42 13.24 S98
C2 312181.99 1382804.47 15.08 S98
C3AZ 312470.43 1383221.64 15.88 S98
C3 312489.66 1383205.47 18.58 S98
C4AZ 312865.00 1383555.34 15.77 S98
C4 312882.84 1383540.64 7.65 S98
C5AZ 313250.50 1383885.92 28.86 S98
C5AZ 313250.57 1383885.91 28.86 S99
C5 313268.53 1383870.93 14.22 S98
C5D 313268.55 1383870.93 14.05 S99
C5PK 313275.91 1383864.64 10.15 S99
C6AZ 313679.22 1384244.44 13.52 S98
C6AZ 313679.28 1384244.31 13.40 S99
C6 313695.32 1384230.80 8.05 S98
C7AZD 314001.29 1384553.71 25.99 S99
C7AZ 314016.86 1384540.87 12.92 S98
C7D 314021.42 1384537.09 9.61 S99
C7 314034.25 1384526.24 8.29 S98
C8AZ 314293.30 1384912.76 18.45 S98
C8AZ 314293.54 1384912.51 18.36 S99
C8 314307.26 1384901.16 11.28 S98
C8 314307.33 1384901.14 11.29 S99
C9AZD 314580.24 1385378.46 34.65 S99
C9AZ 314601.47 1385360.77 15.24 S98
C9 314621.90 1385343.92 5.03 S98
C9D 314621.96 1385344.00 5.01 S99
C10AZD 314925.35 1385765.60 33.17 S99
C10AZ 314940.63 1385755.14 14.20 S98
C10D 314946.70 1385749.98 7.06 S99
C10PK 314953.08 1385718.11 10.24 S99
C10 314958.81 1385739.88 5.89 S98
C11AZ 315323.26 1386057.25 30.55 S98
C11 315352.19 1386033.05 6.26 S98
C12AZ 315660.95 1386424.71 31.21 S98
C12 315690.66 1386400.61 7.24 S98
C13AZ 316401.62 1387219.63 28.26 S99
C13AZ 316401.70 1387219.67 28.30 S98
C13 316423.90 1387200.99 8.18 S98
C13 316423.95 1387200.98 8.19 S99
C14AZ 317076.17 1387978.81 23.69 S99
C14AZ 317076.20 1387978.86 23.79 S98
C14 317095.34 1387962.61 8.24 S99
C14 317095.34 1387962.66 8.21 S98
C15AZ 317662.47 1388660.06 17.27 S98
C15AZ 317662.55 1388660.03 17.25 S99
C15D 317675.25 1388649.71 9.76 S99
C15 317687.45 1388639.44 7.41 S98
C 16AZ 318326.49 1389408.07 16.00 S98
C16AZD 318326.59 1389408.75 16.72 S99
C16D 318349.15 1389389.86 7.87 S99
C16 318349.20 1389389.16 7.13 S98
C17AZD 318994.90 1390147.79 52.80 S99
C17AZ 319038.25 1390112.61 10.50 S98
C17D 319038.31 1390112.66 10.57 S99
C17 319056.48 1390097.70 6.09 S98
C18AZD 319610.24 1390941.76 40.41 S99
C18D 319639.37 1390917.40 9.09 S99
C18AZ 319639.41 1390917.47 9.02 S98
C18 319657.76 1390902.30 5.57 S98
C19AZ 320250.80 1391759.10 12.64 S99
C19AZ 320250.81 1391759.05 12.72 S98
C19D 320258.41 1391752.77 10.10 S99
C19 320264.30 1391747.83 6.00 S98
C20AZ 320750.70 1392400.77 14.26 S98
C20 320791.45 1392366.63 13.33 S98
E2AZE 321558.98 1394252.94 33.70 S99
E1AZ 321563.69 1393239.49 13.48 F98
E1AZ 321563.72 1393239.50 13.44 S98
E1 PK 321578.05 1393235.96 9.12 S99
E 1 D 321580.42 1393235.11 6.11 S99
E1 D 321580.55 1393234.42 6.22 F98
El 321581.20 1393234.39 5.33 S98
E2AZ 321573.13 1394248.90 26.07 S99
E2AZ 321573.21 1394248.96 25.96 S98
E2D 321600.92 1394236.44 7.92 S99
E2D 321600.94 1394236.42 7.90 F98
E2 321607.47 1394233.94 6.56 S98
E3AZ 321893.38 1395218.13 26.88 S98
E3AZ 321893.41 1395218.15 27.00 F98
E3AZ 321893.50 1395218.15 26.97 S99
E3PK 321922.50 1395205.54 10.74 S99
E3 321924.75 1395204.42 6.51 F98
E3 321924.86 1395204.53 6.47 S99
E3 321924.96 1395204.49 6.41 S98
E4AZD 322307.26 1396187.88 34.58' F98
E4AZD 322307.47 1396187.91 34.56 S99
E4AZ 322329.09 1396178.30 18.37 S98
E4D 322345.29 1396171.43 7.03 F98
E4D 322345.41 1396171.48 7.02 S99
E4 322348.97 1396169.85 6.65 S98
E5AZ 322920.65 1397114.54 36.25 F98
E5AZ 322920.73 1397114.63 36.28 S98
E5AZ 322920.84 1397114.62 36.21 S99
E5 322955.01 1397099.20 10.92 F98
E5 322955.09 1397099.27 10.88 S99
E5 322955.10 1397099.19 10.90 S98
E5PK 322959.62 1397097.15 9.60 S99
E6AZD 323403.61 1398062.04 23.07 F98
E6AZ 323404.05 1398062.23 23.86 S98
E6AZD 323404.18 1398062.35 23.07 S99
E6 323430.65 1398050.58 7.05 F98
E6 323430.76 1398050.64 6.96 S98
E6 323430.77 1398050.59 6.97 S99
E7AZ 323704.58 1398847.92 24.31 S98
E7AZD 323705.61 1398847.40 23.87 F98
E7AZD 323705.87 1398847.31 23.75 S99
E7 323727.82 1398837.34 7.76 S99
E7 323727.99 1398837.42 7.71 S98
E8AZD 324223.16 1399718.57 31.37 F98
E8AZ 324226.23 1399716.61 28.00 S98
E8D 324257.07 1399702.99 7.07 F98
E8 324261.94 1399700.76 7.33 S98
E9AZD 324843.01 1400539.79 17.53 S99
E9AZD 324843.21 1400539.86 17.50 F98
E9D 324854.14 1400534.01 8.26 F98
E9D 324854.20 1400534.01 8.25 S99
E9AZ 324860.52 1400531.27 8.12 S98
E9 324882.77 1400521.51 5.53 S98
E10AZ 325015.31 1401193.05 33.41 F98
E10AZ 325015.32 1401193.03 33.16 S98
E10AZ 325015.43 1401193.06 33.27 S99
E10D 325050.52 1401184.55 8.02 F98
E10D 325050.60 1401184.61 7.92 S99
E10 325067.43 1401180.44 5.68 S98
E11AZ 325412.17 1402472.67 8.78 F98
E11AZ 325412.22 1402472.63 8.78 S98
E11AZ 325412.34 1402472.69 8.73 S99
E11 325426.35 1402466.08 6.61 F98
E11 325426.47 1402466.00 6.54 S99
E11 325426.60 1402466.11 6.60 S98
E12AZ 325688.48 1403308.67 6.21 S99
E12AZ 325688.51 1403308.60 6.27 F98
E12AZ 325688.62 1403308.65 6.25 S98
E12 325704.33 1403301.73 4.71 F98
E12 325704.36 1403301.75 4.64 S99
E12 325704.45 1403301.76 4.67 S98
E 13AZ 326107.57 1404166.19 15.68 S98
30LDAZ 326107.62 1404166.10 15.51 S99
30LD 326125.91 1404149.71 8.69 S99
E13 326125.95 1404149.47 8.83 S98
E14AZ 326736.54 1404615.78 7.09 S98
E14 326781.22 1404595.81 8.89 S98
E14 326781.42 1404595.59 8.85 F98
E15AZ 327031.98 1404881.03 9.05 S98
E15AZ 327032.29 1404880.56 8.99 F98
E15 327112.75 1404797.93 8.73 S98
E15 327112.85 1404798.34 8.72 F98
F1AZ 327350.60 1405564.51 12.72 S98
F1 327362.51 1405548.98 13.69 S98
F2AZ 327608.15 1405859.43 8.07 F98
F2AZ 327608.30 1405859.34 8.14 S98
F2 327661.43 1405814.80 10.84 F98
F2 327661.57 1405814.83 10.88 S98
F3AZ 327948.27 1406081.48 9.41 F98
F3AZ 327948.49 1406081.26 9.48 S98
F3 327987.38 1406048.77 9.52 S98
F3 327987.54 1406048.73 9.48 F98
F4AZ 328273.63 1406333.83 13.84 S98
F4AZ 328273.84 1406333.28 13.76 F98
F4 328309.53 1406291.98 9.34 S98
F4 328309.58 1406291.50 9.26 F98
F5AZ 328609.89 1406622.13 12.99 F98
F5AZ 328610.07 1406622.02 13.02 S98
F5 328640.40 1406596.41 9.31 F98
F5 328640.42 1406596.64 9.38 S98
F6AZ 329038.90 1406888.54 15.16 S98
F6 329055.54 1406874.92 10.11 S98
F7AZ 329351.98 1407139.21 15.13 S98
F7 329377.52 1407117.75 15.43 S98
F8AZ 329783.66 1407468.71 14.48 S98
F8AZ 329783.72 1407468.82 14.46 F98
F8 329817.40 1407440.39 9.26 F98
F8 329817.90 1407440.08 9.21 S98
F9AZ 330011.84 1407770.30 12.47 S98
F9AZ 330011.86 1407770.01 12.37 F98
F9 330045.55 1407741.90 13.60 F98
F9 330045.76 1407741.98 13.72 S98
F10AZ 330388.60 1407999.98 14.50 F98
F10AZ 330388.79 1408000.16 14.57 S98
F10 330400.32 1407983.74 9.01 S98
F10 330400.37 1407983.75 8.95 F98
F 11 AZ 330687.77 1408346.38 9.51 F98
F11AZ 330687.79 1408346.46 9.55 S98
F11 330726.59 1408313.96 15.61 F98
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F12AZ 331068.80 1408580.88 7.82 S98
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F13 331481.98 1408791.37 16.77 S98
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F14AZ 331842.67 1408935.69 11.73 S98
F14 331847.29 1408929.10 10.52 S99
F14 331847.36 1408929.11 10.54 S98
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F15AZ 332147.27 1409188.61 10.43 S98
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F15AZ 332147.29 1409188.59 10.43 F98
F15 332177.85 1409143.11 9.64 F98
F15 332177.88 1409143.12 9.66 S98
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F15PK 332179.85 1409140.28 10.50 S99
F16AZ 332492.46 1409406.22 13.99 S98
F16AZ 332492.52 1409406.10 14.00 F98
F16 332502.01 1409389.47 8.83 S99
F16 332502.10 1409389.53 8.88 F98
F16 332502.11 1409389.48 8.82 S98
F17AZ 332903.57 1409600.22 9.84 S99
F17AZ 332903.60 1409600.24 9.90 F98
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F18AZ 333287.56 1410058.82 10.54 S99
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F18 333335.68 1409961.47 11.00 S98
F18 333335.69 1409961.43 10.93 S99
F18 333335.91 1409961.54 10.97 F98
F19AZ 333706.75 1410213.52 9.24 S99
F19AZ 333706.83 1410213.62 9.19 S98
F19 333731.91 1410175.86 11.16 S99
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F20AZ 333894.49 1410345.69 9.08 S98
F20 333924.86 1410292.06 11.38 S99
F20 333924.88 1410292.16 11.46 S98
F21AZD 334296.94 1410588.13 9.50 S99
F21AZ 334298.17 1410586.68 9.37 S98
F21AZ 334298.26 1410586.56 9.32 F98
F21 334342.48 1410521.23 9.41 S98
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F22AZD 334662.76 1410768.97 8.68 S99
F22AZ 334662.77 1410769.02 8.72 F98
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F22 334701.79 1410711.47 9.00 S98
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F23AZ 335081.91 1410958.73 11.36 S98
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F24D 335382.11 1411079.75 10.72 S99
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F27AZ 336354.91 1411634.81 5.53 S98
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F27 336401.49 1411556.31 8.14 S98
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F28AZ 337345.51 1411884.90 11.40 S99
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F29AZ 338261.56 1412201.39 19.75 S99
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APPENDIX C
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