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Hydrographic Surveying

Hydrographic surveys can reveal critical information that otherwise would remain hidden below the water surface. With a commitment to safety and excellence, FreshWater assists environmental and construction projects in rivers, lakes, and harbors across the country.

FreshWater provides hydrographic surveying services to clients seeking assistance with underwater site investigation, sediment investigations, and dredge/fill operations. We provide high-resolution mapping and side-scan sonar imagery using the latest technology in underwater sensing.

FreshWater owns and operates its own survey vessel, which can be equipped with a variety of survey systems ranging from single-beam to multi-beam swath systems. In the photo above, the vessel is equipped with an EdgeTech 6205 multi-beam swath bathymetry and side-scan sonar system.

Project Highlights

Kinnickinnic River Hydrographic Survey

FreshWater conducted a hydrographic survey of the Kinnickinnic River in Milwaukee, WI in support of ongoing investigations in the area. The survey collected high resolution bathymetry and sidescan sonar data for a 0.5 mile-long reach. A state-of-the-art  phase-differencing multibeam swath sidescan/ bathymetry system was used to create a complete high resolution map and sidescan image of the river bed.