In late September, the San Diego County Water Authority will begin rehabilitating more than four miles of a large-diameter pipeline between Lake Murray and Sweetwater Reservoir. The 66-inch and 69-inch diameter pipe provides water to Helix Water District and the Sweetwater Authority.
The pipeline runs under Baltimore Drive and along Spring Street in La Mesa, and extends south into Spring Valley. The $28.6 million project is part of the Water Authority’s multi-decade program to rehabilitate 82 miles of pre-stressed concrete cylinder pipeline in its conveyance system.
Construction crews will conduct most of the work underground, inside the pipe. They will access the pipe by excavating and entering the pipeline through 17 access sites, or portals. Most construction activities will occur at these access portals, which will be spaced approximately 525 to 2,500 feet apart.
The Water Authority began communicating with stakeholders along the pipeline last December. If you’d like to know more about the project, the Water Authority will host two open houses in September for residents living near the project and provide information at local events:
Information table and staff to answer questions at the La Mesa Car Show
Open house at Portals 1 and 2
– Portal 1 is located on Baltimore Drive, just south of Laport/El Paso Street, in La Mesa
– Portal 2 is located on Baltimore Drive, just south of Bertro Drive, in La Mesa
Open house at Portal 3
– Portal 3 is located on Baltimore Drive, about 3/4 mile south of Lake Murray Blvd.
Information table and staff to answer questions at the La Mesa Chamber of Commerce breakfast
Information table and staff to answer questions at the La Mesa Farmer’s Market