Projects on the water present unique challenges to professional engineers, scientists, planners, and contractors. Thew Associates has extensive experience working in marine environments providing seamless topographic and utility mapping from upland surveys through transition zones and into deeper water.

Thew Associates specializes in working in near-shore and inland water environments. Our shallow draft and unmanned surface vessels allow us to navigate in shallow waters, and our staff is experienced with wading in the near shore areas and marshes to collect the requisite bathymetric data.

Thew Associates is fully equipped to undertake a wide range of water projects utilizing various technologies including single and multi-beam bathymetric surveying and mapping, backscatter data, sub bottom profiling, marine magnetometer surveys, Acoustic Doppler Current Profiling (ADCP), and sediment sampling and analysis.