The development objective of the Ibadan Urban Flood Management Project for Nigeria 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: (1) providing enlightenment forums to community members from the preparatory stage and on potential environmental and social concerns from civil works; (2) traffic control measures to include: strict enforcement of speed limits, use of appropriate road safety signage’s and signalers, and minimization of movement at peak hours of the day; (3) provision of personal protective equipment (PPE) to workers; emergency contingency plans; education of workers; incident and accident reporting; provision of first aid onsite; (4) ensure exhaust fumes from vehicles conform to applicable national standards and specifications; (5) maintain equipment and machineries adequately to reduce; (6) avoid removal of vegetation and trees to the extent possible; and (7) regular inspection of the project sites will be needed.