Bathymetric Surveys of the Blynman Canal, 
Gloucester, Massachusetts

In February and December, 2001, CR Environmental, Inc.  performed detailed bathymetric surveys of  the Blynman Canal, a narrow navigation channel under a drawbridge in Gloucester, Massachusetts.  The work was performed for Aqua-Tech Marine Construction, Inc. to support installation of a buried power line beneath the canal.

The survey was conducted using HYPACK survey software, a Raytheon DE719 MKII digital fathometer equipped with a 3-degree 200 kHz transducer, and a 12-channel Trimble ProXRS DGPS.  In addition to scaled plans, data were delivered to project scientists in GIS format.

Reference:

James Curry
Aqua-Tech Marine Construction, Inc.
P.O. Box 40, 2286 Camden Road
Warren, Maine  04864
(207)273-3699