INVENTORY-Connecticut River Log Pier inventory informationN 42.3143W 72.5958
Y = 896560X = 109666MassSPC (NAD1983; meters)
ECoordinate System: NAD 1983 StatePlane Massachusetts Mainland FIPS 2001Projection: Lambert Conformal ConicDatum: North American 1983False Easting: 200,000.0000False Northing: 750,000.0000Central Meridian: -71.5000Standard Parallel 1: 41.7167Standard Parallel 2: 42.6833Latitude Of Origin: 41.0000Units: Meter
Document Name: 11x17_landscapeDocument Path: C:\Users\gis\AppData\Roaming\ESRI\Desktop10.3\ArcMap\Templates\11x17_landscape.mxd
Author: GISDate Saved: 29 Jan 2015 9:43:49 AMToday's Date: 29 Jan 2015
The data are intended for general planning purposes only.They are not to be used for boundary determination, conveyances, or accurate measurement purposes.They contain errors and omissions. Individuals requiring an authoritative property boundary or other location must retain the services of a professional land surveyor.
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N 42.3143W 72.5958
Y = 896560X = 109666MassSPC (NAD1983; meters)MT. HOLYOKE, MASS.N4215-W7230/7.51964PHOTOREVISED 1979
Portion at 1:7200
ECoordinate System: NAD 1983 StatePlane Massachusetts Mainland FIPS 2001Projection: Lambert Conformal ConicDatum: North American 1983False Easting: 200,000.0000False Northing: 750,000.0000Central Meridian: -71.5000Standard Parallel 1: 41.7167Standard Parallel 2: 42.6833Latitude Of Origin: 41.0000Units: Meter
Document Name: 11x17_landscapeDocument Path: C:\Users\gis\AppData\Roaming\ESRI\Desktop10.3\ArcMap\Templates\11x17_landscape.mxd
Author: GISDate Saved: 29 Jan 2015 9:43:49 AMToday's Date: 29 Jan 2015
The data are intended for general planning purposes only.They are not to be used for boundary determination, conveyances, or accurate measurement purposes.They contain errors and omissions. Individuals requiring an authoritative property boundary or other location must retain the services of a professional land surveyor.
0 500 1,000 1,500 2,000250 Feet
Connecticut River Log Piers
BATHYMETRIC SURVEY
August 6, 2019
Robert M. Newton
Department of Geosciences Smith College
Assisted by
Steven Hall
Matt Lemberg
Northampton Fire Department
Methods
Bathymetric data was collected using vertical beam data from a Teledyne RDI RiverRay Acoustic
Doppler Current Profiler mounted to the side of a boat. Approximately 3000 data points were
collected from the area of the two piers located just south of Shepherd Island (Figure 1). In
addition, the emergent portions of the piers were mapped using an EOS Arrow 100 GNSS
system. The data was process using ArcMap software by first constructing a Triangulated
Irregular Network (TIN) and this was then converted to a raster with a 0.5m cell size. A Digital
Elevation Model (DEM) was constructed from the raster.
Figure 1. Map of the Connecticut River just south of Shepherd Island showing RiverRay transects. The
emergent portions of the two piers are shown in light red.
Results
Figure 2. Bathymetric map of the area around the two log crib stone piers. Depths are in ft below the
water surface.
Figure 3. Bathymetric map of the area around the two log crib stone piers. Depths are in ft below the
water surface. View has a hillshade produced from light source bearing 315˚.
Figure 4. Line of bathymetric cross-section that cuts across pier 1.
Figure 4. Bathymetric profile along Line A-B.
A B
Pier 1 Pier 2