Capital Improvement Program
The City of Napa Water Division maintains a significant number of facilities needed to deliver high-quality drinking water to local homes and businesses. Treatment plants, pipelines, pump stations, storage tanks, valves, hydrants, and meters all play a role. Much of the system has been in service for 60 years or more. A 20-year capital improvement plan now prioritizes the system improvements that are needed to maintain a high level of service and avoid the disruptions and large costs associated with failing infrastructure.
Current and Upcoming Projects:
2019 Water Main Freeway Crossings Project (FEMA-Funded)
In the summer of 2019, the City of Napa will replace several Highway 29 freeway crossings that broke during the 2014 South Napa Earthquake with new mains to reestablish circulation within the water system.
Conn Dam Water Spillway Repairs - Phase II
In November 2018, the City addressed damage requiring immediate repair to Conn Dam Spillway (Phase I). The work performed under Phase I involved the repair of edge spalling and crack sealing and was completed in December 2018; the repairs completed as part of Phase I withstood subsequent heavy winter rains, prompting the City to continue with Phase II repairs.
On September 27, 2019, the City received the below proposals for Design-Build project delivery of Phase II repairs.
Recent Project Highlights:
Special pages have been created to highlight some recent capital improvement projects of significance. Just view the following pages for detailed descriptions, photos, and videos.
In the second half of 2013, the City of Napa replaced several aged, leaking, and undersized freeway crossings with new mains to improve circulation within the water system.
In the first half of 2012, the City of Napa replaced a 7,400-foot section of water main on the west side of Highway 221 from Napa Valley College south to Kaiser Road, resulting in a major improvement in how water moves through our distribution system.
The Edward I. Barwick Jamieson Canyon Water Treatment Plant has been improved and can now take beneficial use of the City's existing State Water Project entitlements, meet daily water demands alone for longer periods throughout the year, and comply with increasingly stringent water quality regulations.