PERENCANAAN TANGGUL UNTUK PENANGANAN BANJIR SUNGAI MEGALUH KABUPATEN JOMBANG

The Megaluh River is located in the Megaluh district, Jombang Regency, East Java,
with a length of 38 km and a river flow area of approximately 1,353 hectares. Geographically,
the Brantas River area in Megaluh is relatively flat with an average slope of between 2% and
15%. This can potentially increase water pooling. According to data from the Jombang Regency
BPBD for the years 2020-2024, flooding in this river occurs almost every year. The purpose of
constructing levees is to control flooding. The analysis of flood discharge serves as input for
the planned steady flow discharge for return periods of 2 years, 5 years, 10 years, 25 years, and
50 years. The planning aimed at addressing segments that overflow is carried out with a running
analysis of steady flow, which can determine that the planned discharge exceeds the river's bank
capacity. The elevation of the Brantas River levee in Megaluh will eventually be carried out on
3 river segments, namely, segment 1 from STA 120 to STA 134, segment 2 from STA 66 to
STA 118, and segment 3 from STA HP 1+150 to STA 65