Pipeline Construction to Begin on Rancho Santa Fe Road

Olivenhain Municipal Water District is beginning construction to replace aging water infrastructure on Rancho Santa Fe Road on the border of Carlsbad and Encinitas.

An existing pipeline originally installed in 1961 on Rancho Santa Fe Road between Las Olas Court and Avenida La Posta is approaching the end of its lifespan. This project will replace 1,500 feet of the 12-inch drinking water pipeline.  

“Replacing old water mains ensures the continued reliability of our services,” said OMWD Board President Christy Guerin. “Proactive maintenance projects like this are necessary to avoid emergency breaks that can waste millions of gallons of water and be very costly.”

A city-approved traffic management plan will be implemented during construction to minimize disruptions to residents and schools in the project area. Work will take place mostly during the day, from 8:30 a.m. to 3:30 p.m., Monday through Friday, due to the residential nature of the surrounding area. Limited overnight work is anticipated.

Construction of the new pipeline is anticipated to be complete in late 2024. More information can be found at, and project updates will be posted to OMWD’s Facebook and X accounts.