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Electronic Fathometric

Survey Services

Survey boat In support of our coastal project permitting activities, underwater structural inspection of bridge sub- structures and QA/QC diving services, Drake Associates provides accurate fathometric surveys of areas of tidal and inland water bodies. Three Drake Associates boats are capable of performing fathometric surveys. We employ the Ocean Data Bathy-500 -acoustic fathometers to record run-continuous sounding data. Lateral control is established by standard land surveying techniques, total station instrumentation and long range vertical sighting lasers. Collected fathometric data is referenced to an established/local vertical datum. Fathometric survey data is presented in AutoCAD format drawings in simple plan, contour plan and cross sections. All standard drawing sizes and scales can be produced in-house.


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