Site G04 Gasconade River Bathymetry at Structure A2550 on Missouri State Highway 42 near Vienna, Missouri, June 2017

These data are high-resolution bathymetry (riverbed elevation) in ASCII XYZ format, generated from the June 6, 2017, hydrographic survey of the Gasconade River near structure A2550 on Missouri State Highway 42 near Vienna, Missouri, to help identify possible effects from extreme flooding on May 1-2, 2017. Hydrographic data were collected using a high-resolution multibeam echosounder mapping system (MBMS), which consists of a multibeam echosounder (MBES) and an inertial navigation system (INS) mounted on a marine survey vessel. Data were collected as the vessel traversed the river along planned survey lines distributed throughout the reach. Data collection software integrated and stored the depth data from the MBES and the horizontal [...]