Cooper Park Stormwater Improvements

City of Columbus

Two large storm pipes outlet into a drainage area.

Facts
Storm Sewer: 1084 LF
Client/Owner: City of Columbus, Department of Public Utilities Lead Engineer: Moody Engineering
Site Location: Columbus, OH
Moody Engineering Project Manager: Mark Larrimer

Description
The City of Columbus Division of Sewerage and Drainage initiated CIP 611011 in response to roadway flooding and storm sewer surcharging in the vicinity of Cooper Road, Stoneshead Court and Cooper Park. The tributary area includes residential storm sewers, roadside open ditches and a City Park. The project area is generally bounded by Cooper Road, Manchester Way Drive and Alum Creek.

Proposed improvements investigated included: off/inline storage, stormwater quantity and quality control facilities, possible storm sewer rerouting, increasing capacity of the receiving storm sewer systems and stormwater Best Management Practices (BMPs).

After studying the existing system and observing rain events, it was determined that the flooding issues in the area are caused by hydraulic connectivity with Alum Creek. Additionally the system has maintenance issues due to sediment laden inflow and a restricted outlet size. The proposed solutions include installation of a sediment removal chamber and backflow prevention device to separate the neighborhood stormwater from Alum Creek.