Bowman performed acoustic Doppler current profiler (ADCP) surveys along mapped fault regions of the Hudson River to evaluate water-column velocity and flow direction associated with suspected losing sections of the river. These ADCP transects helped identify areas associated with riverbed sinkholes.
Bowman corroborated the suspected sinkhole locations through multibeam bathymetric surveying, combining the two datasets into a clearer picture of subsurface conditions along the river. The resulting data and mapping supported development of long-term repair and maintenance measures for the affected sections.
Bowman also performed geological investigation along the Hudson River, including investigating the bedrock and surficial geologic conditions of the river channel and adjacent mining operation to evaluate and identify potential hydrogeologic connections between the two. This work, supported by drilling and geophysics oversight, was compiled into a three-dimensional geologic-seismic and topographic-bathymetric model of the site, which Bowman used to engineer and design a remedial system capable of eliminating the identified connections and withstanding the effects of blasting from the quarry.
