Improving the Discharge Capacity of the Al Butera River

Abstract In the province of Maysan, Al Butera River is one most significant tributaries Tigris River. It has a length 48.8 km and reaches Central Marshes in south Maysan from downstream Regulator. Villages farmland suffer significant. The purpose this project to examine enhance River, which suffered harm sedimentation bank encroachment, particularly during flooding April 2019.. Using available cross-sections hydraulic data numerous Ministry Water Resources. Iraq sectors, one-dimensional model simulating flow was created using HEC-RAS 5.0.7 software. fieldwork conducted fill any gaps that were there regarding river. Fieldwork includes doing an inspection measuring outflow. calibration verification with low root mean square error, simulation demonstrated Manning’s coefficient 0.026. Additionally, current capacity 170 m 3 /s flood escapes, while its developed for short-term development by raising banks level 250 /s. However, river’s long-term through cross-section alteration bank-level maintenance 400 does not allow escape. Because are pavements populated areas nearby, around 2 would be necessary develop it handle design discharge 700