CONSTRUCTION UPDATES
Construction Complete - Thank You!
Construction on the P-18 Trunkline Sewer Pipeline Project is now complete!
Thank you for your patience and cooperation throughout construction. This project represents an important investment in Chico’s wastewater infrastructure and long-term system reliability.
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Project Photos
PROJECT OVERVIEW
The P-18 Trunkline Sewer Pipeline is an important infrastructure improvement, upgrading a critical portion of Chico’s wastewater system.
Construction began in May 2025 and was completed in Spring 2026. The project included installation of a new trunkline sewer pipeline along Midway, the Chico-Durham Bike Path, and Entler Avenue south of the City limits designed to increase system capacity, enhance reliability, and support future growth in the area.
PROJECT BACKGROUND
The P-18 Trunkline Sewer Project was identified in the 2013 City of Chico Sanitary Sewer Master Plan Update, which identified capacity deficiencies in the sanitary sewer system and included plans to incorporate additional infrastructure where needed. This project is an important step toward improving sanitary sewer capacity.
The trunkline will service the majority of the Honey Run/Doe Mill Special Planning Area, South Entler Special Planning Area, and commercial and industrial uses in the area, as identified in the Chico 2030 General Plan.
This project was funded with U.S. Department of Housing and Urban Development Community Project Funding, American Rescue Plan Act Funding and local funds.
Questions?
For questions related to the P-18 Trunkline Sewer Project, please visit: https://chicoca.gov/Departments/Public-Works/
For questions related to pavement or other services within Butte County, please visit: www.buttecounty.ca.gov/publicworks