DefinePK

Abstract

Sedimentation in the Mentawa river has increased from year to year, thus also the scouring of river banks which results in changes in the basic characteristics of the channel. The study was conducted to determine the differences between suspended sediment transport and bedload sediment transport in upstream, middle and downstream rivers, as well as bedload sediment transport capacity based on the amount of flood discharge. By measuring river variables in the field and using several methods to obtain sediment transport discharge, the EDI method for suspended sediment transport, while for bedload sediment are used MPM and Einstein methods, with a return period of rainfall 1, 5 and 25 years to get the bedload transport discharge. Results with the EDI method yielded sediment suspended in the upstream, middle and downstream sections respectively 0.0003, 0.0004 and 0.0009 m3/s, while for the bedload sediments the MPM method was 0.1607, 0.1071, 0.2156 m3/s, and the Einstein Method yielded 0.0680, 0.0080 and 0.1192 m3/s. The steeper the volume of sediment deposits the smaller, the volume of sediment means is directly proportional to the slope of the river.