Wilson/Willow Stormwater Projects | DuPage County Division of Transportation

Knight provided professional services for the preparation of a Phase I Drainage Study and Phase II - Contract Documents for the DuPage County Department of Development and Environmental Concerns Project 2 (Wilson and Willow) and Project 3 (Willow and Addison). The residential subdivision frequently flooded after heavy rain events. Knight was charged with evaluating the existing conditions, identify the cause(s) for the chronic flooding problem, evaluating potential solutions and recommending the most cost effective solution as well as preparing construction document for bidding. The project included detailed hydrologic and hydraulic modeling to properly understand the benefits of the various alternatives. The final solution consisted of extensive storm sewer improvements that utilized the roadway low points for on pavement storm water detention.