CLASS 1 HYDROGRAPHIC SURVEYS AT U.S. COAST GUARD STATIONS

 
 
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Client:  U.S. Coast Guard, Civil Engineering Unit                           Completion Date:  2003                               Contract Value:  $250K
 
                                                                                                                       

For 13-years (1991 to 2003), Sea Surveyor conducted

Class 1 pre- and post-dredge hydrographic surveys

at U.S. Coast Guard Stations in California, Oregon, 

and Washington.  The hydrographic surveys are

conducted under contract to the U.S. Coast Guard

and include collecting electronic soundings in deep

water, leadline depth measurements around docks,

monitoring tides for correcting soundings to the MLLW

tidal datum, and preparing bathymetric contour charts.

Sounding Chart for USCG Station Tillmook, OR.
 
 


Deliverables from the Class 1 Hydrographic Surveys include:

Ø      Sounding Charts at scale 1”=30’

Ø      Contoured Bathymetric Charts

Ø      Dredge Volume Computations

Ø       Cross-Sectional Profiles
 
Sea Surveyor tows our survey vessels to each of the

U.S. Coast Guard Stations and conducts the pre- or

post-dredge soundings in one day.  Survey equipment

includes an INNERSPACE survey-grade depthfinder,

differential GPS navigation, self-recording tide guage,
 

 
and navigation computer with HYPACK software.

Sounding Chart for USCG Station Bodega, CA.
 

960-C Grant Street, Benicia CA 94510

(707) 746-1853 info@seasurveyor.com