Reservoir Sedimentation Studies for U.S. Army Corps of Engineers

WEST Consultants, Inc. (WEST) was retained by the St. Louis District Army Corps of Engineers to conduct sedimentation analyses of Rend Lake and Mark Twain Reservoirs.  The purpose of the analyses was to determine the changes in sediment volume within the reservoirs as well as changes in sedimentation rates over time.  The SCS Prismoidal Method was applied to both historic and recent reservoir surveys in order to calculate vertical and horizontal sediment distribution and investigate sedimentation patterns.  Changes in sedimentation rates over the life of the projects were calculated and used to estimate the time to depletion of remaining minimum pool capacities.