Lake Murray Trunk Sewer Project
Construction Updates
March 2011 - Park Ridge Boulevard from the comfort station to the Patriots Little League field and the parking lots in front of the little league baseball fields at Lake Murray Park will be temporarily closed starting Monday, March 28 to Friday, April 1 for paving work. It is scheduled to reopen by the morning of Saturday, April 2.
The work around the utility access road/trail is now complete and the trail is reopened to the public.
Project Background
Most of the existing 12-inch to 18-inch diameter clay sewer main has reached its useful design life and needs to be replaced with new durable plastic pipe to meet current design standards and increase service reliability. In addition, the new sewer line will be larger than the existing line to prepare for future demand.
Project Overview
The project consists of replacing nearly three miles of trunk sewer main with new 18-inch to 27-inch diameter durable plastic pipe, as well as replacing manholes and reconnecting the new main to existing sewer laterals.
The sewer main is located along the west side of Murray Reservoir in the Del Cerro and San Carlos communities. The pipeline runs under portions of Mission Trails Regional Park, Lake Murray Trail, Lake Murray Community Park and Mission Trails Golf Course. The northern end of the pipeline is under Jackson Drive, ending near Cowles Mountain Drive. The southern end of the pipeline is south of Murray Dam. In addition, a small portion of work needs to take place under the intersection of Del Cerro Boulevard and Elaine Way.
This project will use a combination of open-trench construction and tunnel boring. Crews will tunnel underneath a small portion of Jackson Drive, which will avoid any disruptions to traffic on that street.
Crews will need to trench through a portion of the Lake Murray Trail along the west side of Murray Reservoir near the baseball fields in Lake Murray Community Park and through Mission Trails Golf Course. This work will close about a half-mile portion of the Lake Murray Trail for about three to four months, anticipated to begin in summer 2010. Crews will also be working in the parking lot of the Lake Murray Community Park near the baseball fields, but work is not expected to affect regularly scheduled baseball or softball games in the park. Be advised to be mindful of construction and use caution near the work.
Construction will also take place through portions of Mission Trails Golf Course, which will result in a closure of the golf course from January through March 2011. Crews will replace all disturbed areas of the golf course once the pipeline replacement work is complete. The project team is working closely with golf course staff to minimize inconveniences to golfers during this time.
As part of the project, there may be some minor road disturbances near the intersection of Del Cerro Boulevard and Elaine Way in the Del Cerro community while work is completed under those streets. Residents in that area will be notified about this work before it begins.
Benefits
- Reduce maintenance needs for the sewer line.
- Increase the size of the existing main to better serve the area.
- Improve service reliability.
- Minimize the possibility of sewer main breaks caused by aging pipes.
Cost
The cost of construction is approximately $7.9 million.
Schedule
Construction Start: June 2010
Construction Finish: Spring/Summer 2012
Important Documents:
- Fact Sheet (PDF)
- Project Location Map (PDF)
Contact Us
If you would like to receive more information about this project, please email us at engineering@sandiego.gov or call (619) 533-4207. Please reference Lake Murray Trunk Sewer in your email or call.
