The data will be used to support the 3D Hydrography Program and advance statewide flood mitigation efforts.
, /PRNewswire-PRWeb/ — The U.S. Geological Survey has selected Woolpert to process and delineate elevation-derived hydrography (EDH) across Northwest and Central Ohio in support of the 3D Hydrography Program (3DHP).
“Engineers, natural resource managers, and other state agencies will be able to utilize this new, highly accurate data for mapping, modeling, and analyzing surface water and flow patterns.”
3DHP is the first systematic remapping of U.S. hydrography since the original USGS 1:24,000-scale topographic mapping program was active, which included the National Hydrography Dataset (NHD). Maps were produced by USGS at that scale as early as 1904, with revisions made until 2006. 3DHP uses updated, high-accuracy elevation data collected as part of the 3D Elevation Program (3DEP).
Under this task order, Woolpert will process 1,439 square miles of previously collected Quality Levels 1 and 2 lidar data to produce …