The San Diego County Water Authority will host a mid-week open house to provide information on relining about three miles of pipeline under several San Diego and La Mesa streets and parts of
The open house will be held at 5 p.m. Wednesday at the San Carlos Branch Library, 7265 Jackson Drive.
The Mission Trails to Lake Murray Relining Project, set to begin next month, is part of a $786 million, multi-decade effort designed to extend the service life of the 82 miles of pipelines in San Diego County that deliver the majority of the region's water supply, according to the SDCWA.
"This project is an important part of our commitment to ensuring our regional water system will continue to deliver a safe and reliable water supply to sustain the region's 3.1 million residents and $186 billion economy," said Bill Rose, the SDCWA's director of engineering. "Relining projects are a cost- effective alternative to completely replacing entire sections of pipeline, and they have less construction impact to surrounding communities."
Crews will reline about three miles of pipeline south of state Route 52 in Mission Trails Regional Park, east of Tierrasanta. The work to reinforce the pipes with steel liners will extend south to Lake Murray Drive and will also include relining a half-mile of another pipeline along Lake Shore Drive into La Mesa.
Most of the work will be conducted underground, with 11 access portals established along the pipeline. Wooden sound walls will be placed at the portals to lessen noise. Safety barriers around the portals will reduce available traffic lanes, but streets will remain open, water authority officials said.
The SDCWA previously relined about 30 miles of Pre-Stressed Concrete Cylinder Pipe, installed from the early 1960s to the late 1980s.
–City News Service