Florida surveying
Hydrographic surveying in Florida
Map the bottom of navigable water for dredging and marine work.
You cannot manage what you cannot measure, and the bottom of a waterway is hidden. Dredging, dock design, and shoreline work need the depths and the bottom contours before any plan is set.
What is hydrographic surveying?
Hydrographic surveying measures water depth and the shape of the bottom using sonar tied to precise positioning. With Florida’s coastline, inlets, and waterways, this work supports dredging, marina and dock design, channel maintenance, and shoreline monitoring.
When you need hydrographic surveying
What your hydrographic survey includes
Our hydrographic survey process
Survey planning
We plan coverage and account for tides and water levels.
Acquisition
We collect depth data with single or multibeam sonar tied to GNSS.
Tidal correction
We correct soundings to a vertical datum and process the surface.
Charts and volumes
You receive bathymetric charts and any dredging volumes.
Hydrographic surveying across Southwest Florida
ATHCA’s hydrographic survey work is signed and sealed by a licensed Florida Professional Surveyor and Mapper, serving Sarasota, Manatee, and Charlotte counties as our home region and available statewide across Florida.
With the bays, canals, rivers, and harbor frontage across Sarasota, Manatee, and Charlotte counties, hydrographic work supports dredging, dock and seawall design, and waterway projects. ATHCA measures depths and bottom contours and ties them to the same datum as the land survey.
