Mineral King Sanitary Sewer Trunkline.
This project consisted of abandoning active existing 18” and 24” sewer mains and installing approximately 8,200 lineal feet of 36” and 42” diameter sewer main and associated improvements in Mineral King Avenue (an existing major collector roadway) from Locust Street to just west of Woodland Street. The new sewer main was approximately 13-14 feet deep and the trench needed to install the pipe was generally 8-10 feet wide. The project was located along the frontage and served a number of critical facilities including the Kaweah Delta Hospital, Tulare County Sherriff Office, Tulare County Courthouse and Offices, and Redwood High School.
Major water main relocations were also coordinated and designed by 4Creeks to facilitate the sewer project. The project included construction in the Caltrans right of way, a major jack and bore operation, and significant traffic control challenges. We teamed with URS Corp. to provide the engineering services for the project. We were the prime consultant responsible for overall design and project management.
This was an extremely challenging project in a heavily travelled roadway. There were a number of unforeseen underground utilities discovered during construction but the construction project was completed with a low net Change Order rate of 2.2%.
- Topographic Survey
- Preliminary potholing services
- Coordination with Caltrans and all affected entities
- Complete design engineering plans and specifications for the project
- Traffic Management Plans and Caltrans encroachment permit approvals
- Temporary pumping and phasing plans to keep the existing sewer mains active during the project
- Overall project management and coordination