Completed Water Projects

2022 Upper Alta Heights Water System Improvements Project

In late 2022, the Upper Alta Heights Water System Improvements Project (PDF) involved water tank and pump station improvements which primarily impacted water customers at 527-707 Montecito Blvd., 262-286 Monte Vista Drive, Monte Vista Court, and 75-81 El Cortez Drive.

2018-20 Conn Dam Water Spillway Repairs

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 the Phase II evaluation and repairs in 2020. Phase II involved subsurface exploration of the Spillway which was used to guide necessary maintenance related repairs to ensure the Spillway continues to perform as designed and intended.

2020-21 Hillcrest and Silverado Highlands Pump Stations Replacement Project

In 2020-2021, the City of Napa replaced two potable water pump stations that were destroyed in the 2017 Atlas Fire.
Project Summary (PDF)

2020 Park and Jefferson Main Replacement Photo

2020 Park Avenue and Jefferson Street Water Main Replacement Project

In 2020, the City of Napa replaced 2,610 feet of small older pipelines around the Park/Jefferson intersection with larger pipelines to improve flow and increase system reliability.

2019 Freeway Crossings Photo

2019 Water Main Freeway Crossings Project (FEMA-Funded)

In 2019, the City of Napa replaced three Highway 29 freeway crossings that broke during the 2014 South Napa Earthquake with new mains to reestablish circulation within the water system.