The goal of this study is to assess the rehabilitation Bahr Awlad Mohamed canal.The canal was rehabilitated by installing lining trapezoidal cross-sections. Before and after process, a field investigation, hydraulic hydrographic measurements, mathematical model (Sobek – 1D) were conducted. According findings, canal's improved average water velocity from 0.18 m/s 0.32 m/s, Manning roughness coef...