PROJECT DESCRIPTION:
Since 1998, Gahagan & Bryant Associates, Inc. (GBA) has been awarded eight (8) indefinite delivery survey contracts for hydrographic and topographic surveys within the New York District. Survey contracts have included over 140 beaches navigational channels, inlets and estuaries in the NY Harbor area. Differential Global Positioning (DGPS) has been used on a number of these surveys.

GBA SERVICES
Perform condition surveys, before and after dredging surveys, volume computations, aerial photography, topographic mapping and subsurface investigations.