PEMODELAN PROFIL MUKA AIR BANJIR RENCANA BANGUNAN CULVERT PADA SUNGAI KRUENG JAMBO BALEE

Krueng Jambo Balee River, which is a tributary in Aye river basin, flows through the Pertagas pipeline installation (RoW, right of way), at segment Sta. 8+500 to 8+600. Flooding that occurred RoW was caused by draining capacity existing culverts were unsufficient flow discharge from upstream river, thus inundating surrounding area, and overtopping on RoW. This condition serious problem for security vital objects oil gas industry, as well disrupting activities people who use village road. The analysis this study aims design alternative types dimensions flood control structures, i.e culverts. alternatives analyzed using HEC-RAS model. modeling results show net width culvert needed allow floods pass 25-year return period 8.5 meters, height riverbed 3,0 follows RoW, i.e. 6.0 meters. water level profile magnitude gives 2.39 m bed (elevation +36.39 m), where inlet not submerged. provides technical plan management, management measures Balee.