Lower Meramec Interceptor Tunnel and Lift Station Design

Metropolitan St. Louis Sewer District

A circular lift station configuration was constructed to maintain operability and minimize construction cost of the nearly 225-foot deep structure.

Overview

The Lower Meramec Lift Station was designed to convey wastewater from a deep tunnel interceptor up to a new treatment facility at the confluence of the Meramec and Mississippi Rivers. A circular lift station configuration with a carefully optimized diameter was constructed to maintain operability and minimize construction cost of the nearly 225-foot deep structure. An electric substation was also constructed nearby to feed power to the pumps. A separate screen structure was designed upstream to prevent pump damage from potentially destructive debris. A biofilter system was added to treat odorous airflow and prevent disruptive smells emanating to nearby residential areas.

Capabilities

Details

Market

Utilities

Site Size

202.5 MGD

Location

St. Louis, Missouri

Year Completed

2007

Innovation. Agility.
Reliability. Horner & Shifrin.