Highway Sewer Crossings Retrofit

Engineering, Environmental Review and Compliance, Permitting, Construction Management, and Grant Program Management

The McKinleyville Community Services District (District) through this Request for Qualifications (RFQ) seeks to select a qualified consulting firm (Consultant) to provide engineering, geotechnical, survey, environmental permitting & construction observation services for the retrofit of three sanitary sewer crossings under Highway 101. Consultants are encouraged to submit a Statement of Qualifications (SOQ) in accordance with the requirements outlined below.

The deadline to submit a SOQ is 3:00 pm on April 11, 2025 at MCSD Office, 1656 Sutter Road, McKinleyville, CA 95519

The goal of this project is to retrofit the three existing Highway 101 sanitary sewer crossings in McKinleyville. The three existing Highway 101 sewer crossing were installed in 1976, both the north and south crossings consist of 15-inch asbestos cement pipe (ACP) within 32-inch steel casings, while the middle crossing is 10-inch ductile iron pipe within a 21-inch steel casing. It is anticipated that all three crossings would be replaced with parallel jack & bore PVC pipe within a steel casing pipe that is more resilient to damage in a major earthquake and with a slightly larger capacity to handle larger storm event flows than the existing pipes. This long-term and independent solution will ensure MCSD can continue providing wastewater services, avoid contamination of local groundwater, streams, and parks with raw wastewater, and protect the integrity of Highway 101 above the crossings in the event of a major earthquake.

The project is being funded in part by a Federal Emergency Management Agency (FEMA) Hazard Mitigation Grant being administered by the California Governor’s Office of Emergency Services (Cal OES). Project activities must adhere to the requirements of both federal and state agencies related to the Hazard Mitigation Grant Program, National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA).

The complete document with attachments  are available at the links below: