Silver Creek: A study of stream velocities and erosion along the Ohio River near Clarksville, Indiana

ERDC /CHL TR-18-4 Silver Creek: A Study of Stream Velocities and Erosion along the Ohio River near Clarksville, Indiana McAlpine Lock and Dam Numerical Model Coastal and Hydraulics Laboratory Keaton E. Jones, David D. Abraham, Gary L. Bell, and Nate D. Clifton April 2018 Approved for public release; distribution is unlimited. The U.S. Army Engineer Research and Development Center (ERDC) solves the nation’s toughest engineering and environmental challenges. ERDC develops innovative solutions in civil and military engineering, geospatial sciences, water resources, and environmental sciences for the Army, the Department of Defense, civilian agencies, and our nation’s public good. Find out more at www.erdc.usace.army.mil. To search for other technical reports published by ERDC, visit the ERDC online library at http://acwc.sdp.sirsi.net/client/default. ERDC/CHL TR-18-4 April 2018 Silver Creek: A Study of Stream Velocities and Erosion along the Ohio River near Clarksville, Indiana McAlpine Lock and Dam Numerical Model Keaton E. Jones, David D. Abraham, Gary L. Bell, and Nate D. Clifton Coastal and Hydraulics Laboratory U.S. Army Engineer Research and Development Center 3909 Halls Ferry Rd Vicksburg, MS 39180-6199 Final report Approved for public release; distribution is unlimited. Prepared for U.S. Army Corps of Engineers, Louisville District Mazzoli Federal Building 600 Dr. Martin Luther King Jr. Place Louisville, KY 40201-0059 Under Project No. 455010, “The Silver Creek Floodplain Management Services Project: A Study of Stream Velocities and Erosion along the Ohio River near Clarksville, Indiana” ERDC/CHL TR-18-4 ii Abstract The River Engineering Branch of the Coastal and Hydraulics Laboratory conducted a two-dimensional numerical model investigation of the Ohio River immediately downstream of McAlpine Lock and Dam. The right bank between river mile 605.5 and 606.5 (opposite the dam’s downstream set of tainter gates) has historically experienced stability issues. Condit