In the beginning of 2008 at Kelurahan Talang Kelapa Kecamatan Alang-alang Lebar Palembang City, CitraGrand City was estabilished. This project is able to increase coefisien run off. Which increase maximum the flood discharge fluctuation when it’s raining and minimum the flood discharge when it’s dry. The research goals are to review how far the effects of CitraGrand City project towards the…