Project Background

The Water Authority is relining approximately 1.7 miles of Pipeline 5 in the community of Fallbrook, west of Interstate 15. The project is part of the Water Authority’s commitment to maintaining the critical infrastructure that supplies safe and reliable water to customers throughout the San Diego region.  

New steel liners will be inserted into the existing pipeline, which will prevent breaks or failures and extend the service life of the pipeline by 75 years or more. To minimize impacts, the relining will take place through seven access portals. 

The project reached an important milestone on May 23, 2024, with the award of the construction contract to J.F. Shea Construction, Inc. at the Water Authority’s Board of Directors meeting. Construction is planned to take place in Fall 2024, with completion targeted in Fall 2025. The majority of work is planned to take place Monday through Friday between the hours of 7 a.m. and 7 p.m. However, night work will occur for limited periods in November 2024 and again in late-April/early-May 2025.