The proposed sewer, which is required under the approved CSO Long Term Control Plan is needed to store and convey wet weather flows to the Pearl River Lift Station. The proposed Phase II of the Brown Street Sewer project is located on the northwest side of Lafayette approximately 1,000 feet north of Main Street. It will extend from a point just south of the intersection of Erie Street and Union Street and continue southwest along Erie Street, then northwesterly to a point near the intersection of Brown Street and 13th Street, then along Brown Street to a point just west of the intersection of Brown Street and 3rd Street.
Phase II of the Brown Street Sewer project includes approximately 4,230 linear feet of 72 inch diameter gravity sewer, approximately 390 linear feet of 84 inch gravity sewer, and approximately 25 linear feet of 96 inch gravity sewer. The design will include green infrastructure features to reduce the potential for sewer surcharging and reduce the overall stormwater loading to the City’s CSO system. Additionally, a new backflow preventer will be installed at the existing CSO 002 outfall structure to prevent backflow from the Wabash River entering the City’s sewer collection system. The construction will also include modifications to the existing CSO 002 headwall structure to accommodate the backflow preventer.