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The U.S. Geological Survey (USGS) in cooperation with the U.S. Army Corps of Engineers (USACE) did a bathymetric survey of the lower reach of the Maumelle River upstream of Lake Maumelle, near Little Rock, Arkansas, from July 9—11, 2019. Channel bed elevations (thalweg) were collected to support a USACE modeling effort on a 5-mile reach of the Maumelle River. In parts of the reach where the water was partially impounded, depth data were collected using an acoustic Doppler current profiler (ADCP) coupled with a survey-grade deferentially corrected global positioning system (GPS) receiver. Depth data were converted to channel bed elevation data by subtracting the depth value from the GPS derived water-surface...
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The U.S. Geological Survey (USGS) in cooperation with the Little Rock District, U.S. Army Corps of Engineers conducted a bathymetric survey of the Black River from Clearwater Lake Dam near Piedmont, Missouri, to southern Butler County, Missouri, from June 16-19, 2020 and from June 22-24, 2020. One hundred and eight sites were surveyed at pre-established transect locations along a 45-mile reach at distances spaced from about 0.3 to 2 miles apart. River-channel cross sections were surveyed to determine water depths along each transect using an acoustic Doppler current profiler (ADCP). Positional location of the water-depth locations was obtained from a global positioning system receiver onboard the ADCP. Water-surface...
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The U.S. Geological Survey (USGS) in cooperation with the State of Arkansas made a bathymetric survey of the Black River from Popular Bluff, Missouri, to Pocahontas, Arkansas from July 12—25, 2018. One hundred sites were surveyed at pre-established transect locations along a 131-mile reach at distances spaced from about 0.1 to 4.8 miles apart. River-channel cross sections were surveyed to determine water depths along each transect using an acoustic Doppler current profiler (ADCP). Positional location of the water-depth locations was obtained from a global positioning system receiver onboard the ADCP. Water-surface elevation at the water-depth locations was computed using vertical control points collected at the...
    map background search result map search result map Bathymetric survey data of the Black River from Poplar Bluff, Missouri, to Pocahontas, Arkansas Channel bed elevations for a 5-mile reach on the Maumelle River upstream of Lake Maumelle near Little Rock, Arkansas, 2019 Channel bed elevations for a 5-mile reach on the Maumelle River upstream of Lake Maumelle near Little Rock, Arkansas, 2019 Bathymetric survey data of the Black River from Poplar Bluff, Missouri, to Pocahontas, Arkansas