Nacimiento Pipeline Repair, Paso Robles
Nacimiento Pipeline Repair, Paso Robles

Nacimiento Pipeline Repairs on North River Road in Paso Robles

Author: Public Works
Date: 1/19/2021 9:50 AM

The County of San Luis Obispo Department of Public Works will make repairs to the Nacimiento Pipeline adjacent to North River Road on Tuesday, January 19, 2021.

(Updated 1/19/21) -- North River Road will be closed on Wednesday, January 20, 2021, for pipeline repair work.


River Road will be closed 1.75 miles north of Highway 46.  A hard road closure is necessary to facilitate the repair work.  Motorists are advised to use Highway 101 or Airport Road as an alternate route. See attached map for specific location.  Notification signs will be in place at least 7-10 days before the closure date.

In September 2019, the Nacimiento water pipeline was shut down after significant amounts of water were observed flowing to the surface around the pipeline’s Salinas River crossing. A pipeline inspection confirmed two leaks and the District installed temporary repair seals in April 2020, to restore water service to the Nacimiento Water Project (NWP) participants. The permanent repair at the Salinas River crossing will be implemented with this construction contract by slip lining with high-density polyethylene pipe. Slip lining is the insertion of a new smaller pipe into an existing pipeline.

The slip lining will require the Nacimiento water pipeline to be temporarily shut down for approximately 8 weeks.  The timing of the project and associated shutdown has been coordinated with the NWP participants.

V. Lopez Jr. and Sons, Inc., has been awarded the contract in the amount of $1,026,873 to perform the work.  This project is funded by the Nacimiento Operating Fund.

Please feel free to contact Eric Laurie at (805) 788-2758 with any questions.