MSD CSO Interceptor & Outfall Modifications
Owner: Metropolitan St. Louis Sewer District
ABNA was responsible for seven (7) sewer outfall structures supported on steel piles and provided steel sheet piling for erosion protection along the Mississippi River from south St. Louis to the Merchant’s RR Bridge. The CSO’s are being designed in accordance with the Overflow Regulation System (ORS) and the interceptors inspected to help provide alternatives & recommendations to MSD. All efforts were coordinated with the COE – St. Louis District.