i - Map 3 - 15771 Fire Island Inlet.pdf
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- Solicitation number
- W912DS26BA022
About this file
This is a technical survey drawing documenting obstruction encounters during a dredging project at Fire Island Inlet, New York. The drawing, prepared by Great Lakes Dredge and Dock Company's Civil Engineering/Surveying Division (Job No. 15771), maps subsurface obstructions identified within the borrow area during dredging operations in March 2019.
The project encountered four distinct hard-object strikes within Contract Areas A, B, and C, with specific coordinates and dates documented: March 6 at STA 22+54 (40°37.4'N, 073°19.1'W) resulting in 15 replaced teeth and 5 broken adapters; March 7 at STA 21+55 (40°37.37'N, 073°19.06'W); March 8 at STA 19+35 (40°37.33'N, 073°19.09'W) involving an anchor stalk extraction; and March 9 at STA 12+86 (40°37.29'N, 073°19.03'W). The drawing uses the New York State Plane coordinate system (NAD-83), MLLW vertical datum, and US Survey Feet as units. The survey included magnetic targets (high and low sensitivity) and cross-references USCG-provided mooring coordinates from Fire Island buoys and markers dating from 2010 to 2018. The document serves as a record of subsurface conditions and equipment damage encountered during dredging operations.
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Text version
C h a n n e l o n t r a c t
A r e a
C o n t r a a o n t r a
B o n t r a
Hit something hard near 40d37.4'N, 073d19.1'W (STA 22+54).
Replaced 15 teeth, broke 5 adapters on March 6, 2019.
Hit something hard near 40d37.37'N, 073d19.06'W
(STA 21+55) on March 7, 2019.
Hit something hard near 40d37.33'N, 073d19.09'W (STA 19+35).
Pulled an anchor stalk out of MP on March 8, 2019.
Hit something hard near 40d37.29'N, 073d19.03'W (STA 12+86) on March 9, 2019.
GRAPHIC SCALE
PROJECT:
Phone: (630) 574-3000
GREAT LAKES DREDGE AND DOCK COMPANY
CIVIL ENGINEERING / SURVEYING DIVISIONG
R E
A
T L
A
K E
SD
R E D
E G
O D C K
P M
O C
AN
Y
Fax: (630) 574-1515
TITLE:
PROJECT DETAILS
DATUM
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SURVEY DATE:
DRAWING DETAILS
GLDD JOB NO.:
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LAST SAVED BY:
AZimmerman
C:\Users\AZimmerman\Desktop\15771 190309 Obstruction Encounters.dwg
1" = 400'
MCM
15771
US Survey Ft
NY-3104 New York Long Island
State Plan NAD-83
MLLW
15771 Borrow Area Obstructions
15771 Fire Island Inlet
N
S
EW
Mag Survey Target: High
Mag Survey Target: Low
Given US Coast Guard Obstructions
GLDD Hit Something Hard
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2122 YORK ROAD, OAK BROOK IL 60523
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| Sheets and Views |
| 24x36 15771 Borrow Area Depth Batmap |
File details come from the government source that posted it. Updated .