Southeast Basins Sanitary Sewer Extension

The Southeast Sanitary Sewer Extension project will install gravity sewer, forcemain, and a pump station to serve Southeast Sioux Falls for the next 100 years. There was a study conducted in 2022 to start developing sanitary sewer trunk alignments and pipe sizes. The study area consisted of the current Sioux Falls city limits south to CR 106 (271st Street) and from I-29 over to SD Highway 11. Construction is tentatively planned to begin in mid-2026 and continue with a phased approach with final completion in 2030.

This website will have periodic updates as progress on the project continues. Interested citizens should stay involved by watching this website. The information on this webpage is available for the first public open house planned for June 10, 2025. 

The next open house will be held at the at the Harrisburg North Middle School at 2201 W 95th Street, Sioux Falls SD 57108 from 5:30 pm to 6:30 pm. Please submit any comments/questions on line by June 17, 2025 to shannon.ausen@siouxfalls.gov.