Sustainable Stormwater Enhancements in an Industrial Area

The Conkey Pond and Northland Creek channel naturalization and floodplain lowering projects consist of a wet stormwater detention pond and naturalization of 286.5 meters (940 feet) of navigable stream in an industrial area in the City of Appleton, WI. Sustainable features include extensive use of natural materials and vegetation that reduce maintenance costs, improves water quality, add biodiversity and enhances habitat and aesthetics. These two facilities reduce downstream flood stages by about 0.82 meters (2.7 feet), and reduce TSS loadings within the city by 27 tonnes/year (30 tons/yr), which is about 11 percent of the remaining citywide TSS removal goal. Additional benefits include naturalization of a concrete lined channel, and the creation of wetlands in shallow depressional areas within the newly created floodplain.