A pre-dam-removal assessment of sediment transport for four dams on the Kalamazoo River between Plainwell and Allegan, Michigan

Abstract

Application of locally weighted regression smoothing (LOWESS) function to simulation results of 1947 flood flow with dams-removed scenario show an uncontainable trend in sediment transport rates during the first 21 days. .. .. .. .. .. . 19. Application of locally weighted regression smoothing (LOWESS) function to simulation results of 1947 flood flow with existing-dams scenario .

Historical and simulated changes in channel characteristics of the Kalamazoo River, Plainwell to Otesgo, Michigan

“…Water-surface elevations at each bank location were based on the results of a one-dimensional sediment transport model, SEDMOD, by USGS (Syed and Bennett, 2004). SEDMOD was used to determine the erosion and transport of sediments through a reach of Kalamazoo River between the Plainwell and Allegan stream-gaging stations under present and flood conditions.…”

“…A streambank stability model was used at selected locations in order to gain an understanding of the condition of the streambanks and the processes that would lead to their failure. The model was run under two scenarios: "present conditions," where the stage is consistent with the SEDMOD model stage elevations for a 730-day period from January 1, 2001to December 31, 2002 and "flood conditions," where the stage is consistent with the SEDMOD 60-day spring flood model (Syed and Bennett, 2004).…”

“…Locations prone to bank toe erosion are found to be related to the occurrence of human-made features, such as bridges, and the occurrence or potential for channel slopes within the reach to become steepened. The erosion of instream sediments within the present impoundments would result in an increase in channel slope (Syed and Bennett, 2004). The slopes used in this analysis are listed by reach in table 1.…”