Upon completion of a Storm Water Management Plan, the City of Prairie du Chien implemented construction of a new storm water interceptor to serve the City’s east side. The project served an area which had multiple deficiencies resulting in localized flooding.

The interceptor sewer is 7,800 lineal feet in length and serves as a 700-acre watershed. The interceptor incorporated wet and dry detention basins, a drainage diversion, and a new greenway into the design. The greenway concept included a small diameter storm sewer drain and infiltration of storm water. The greenway also incorporated a multi-purpose path which was identified as a need in the City’s Transportation Plan.

The cost of the East Side Interceptor Sewer was reduced significantly by using a combination grass waterway and small diameter storm water drain. This design was estimated to reduce the project cost by 25% when compared to conventional large diameter pipe.

Vierbicher Associates, Inc. provided engineering and surveying services for the project including preparation of plans and specifications, preparation of easements, bidding and contract award, and construction staking and inspection.