Press Release

California Water Service Main Replacement Project in Redwood City to Improve Water Service Reliability

MENLO PARK, Calif. — A California Water Service (Cal Water) main installation project in Redwood City is underway to replace nearly 6,000 feet of water mains along Rutherford and Alexander Avenues. The new water mains will prevent leaks, augment water flow, and enhance fire protection, while improving the overall water reliability of the system in the utility’s Bear Gulch District.

Crews will upgrade the older 6-inch, cast-iron main with new 8-inch PVC pipeline, which generally does not rust or corrode and is more cost-effective than other alternatives. For additional fire protection, crews will replace multiple, older fire hydrants in the area and add six new more efficient hydrants. The entire project is expected to be completed by the end of June.

District Manager Dawn Smithson noted that the project will account for the growing landscape in the area, including a 20-foot island on Rutherford Avenue. "To avoid any negative impact to the trees and plants, crews will install mains on both sides of the divided roadway and add fire hydrants to both sides," said Smithson. "We are pleased to begin this water system upgrade, as we are committed to making improvements that ensure the continued delivery of high-quality water to our customers, both during normal operations and in case of an emergency."

Cal Water serves approximately 18,900 service connections in Portola Valley, Woodside, Atherton, and portions of Menlo Park, Redwood City, and San Mateo County and about 2 million people through 480,300 service connections in California. The company, which has provided water service in the area since 1936, was ranked "Highest in Customer Satisfaction among Water Utilities in the West" in 2016 by J.D. Power in its inaugural Water Utility Residential Customer Satisfaction Study. Additional information may be obtained online at