The objective of the Ibadan Urban Flood Management Project is to improve the capacity of Oyo State to effectively manage flood risk in the city of Ibadan. Some of the negative impacts and mitigation measures include: clearing of bushes and uprooting of trees around the dam area could lead to loss of vegetation; the process of mechanical clearing of vegetation could lead to the introduction of exotic species of plants, which could out-compete native species leading to an alteration of species composition and abundance; potential loss of vegetation as a result of movement of vehicles; potential loss of vegetation as a result of dismantling of dam structure and other civil works; potential lack of access to surface water by riparian users during dredging, remedial works on spillway, operating and gourd valves assessment; potential disruption of water supply to the treatment plant during dredging, remedial works on spillway, operating and gourd valves assessment; use of harmful chemical products during bush clearing around dam area could lead to contamination of surface water (increased heavy metal concentration) leading to health complications for riparian users; ensure all materials used for these activities are contamination-free. All machineries used during the rehabilitation works shall be pre-mobbed before use to prevent accidental seepage of hydrocarbon or leakage of hazardous substances; properly reinforce dug out portions and protect from rainfall; and ensure fill materials are free from possible contamination and where available, source materials around the project area.