American Canyon Awaits $383,069 Grant for Sea Level Adaptation Plan

The City of American Canyon will spend the next 2 years refining a comprehensive sea level rise adaptation plan through December 2028, funded by a $383,069 state grant awaiting final approval from the California Ocean Protection Council, according to a report by Napa Valley Register reporter Brett Marsh.

Lauren Webster, American Canyon's sustainability analyst, presented the 2026-2028 planning timeline during a November 4, 2026 (Nov. 4) meeting of the city's Open Space, Active Transportation and Sustainability Commission.

"Sea level rise is an all-encompassing issue," Webster told commissioners during the Nov. 4 briefing. "It does expose us to different types of risk."

Addressing Groundwater Rise, Tidal Flooding, and Senate Bill 272

Webster noted that groundwater rise, saltwater intrusion, and tidal flooding pose direct risks to American Canyon's residential neighborhoods, arterial roadways, and wastewater infrastructure. Under worst-case projections compiled by the Ocean Protection Council, sea levels across the San Francisco Bay Area could rise by up to 6.6 feet by 2100, compounded by king tides and El Niño-driven Kelvin waves.

Under California Senate Bill 272, every local government along the San Francisco Bay shoreline is required to prepare a sea level rise adaptation plan and obtain formal approval from the San Francisco Bay Conservation and Development Commission (BCDC) by January 2034. By completing its plan by December 2028, American Canyon expects to finish more than 5 years ahead of the statutory deadline.

"We're well ahead of schedule," Webster said.

Nature-Based Solutions and the $2.8 Million Napa River Ecology Center

Webster and Norman Woods, American Canyon's assistant public works director, will co-lead an interdepartmental project team comprising public works staff, development engineering personnel, and outside coastal resilience consultants. The 2-year planning sequence includes:

1. Vulnerability Assessment and Nature-Based Prioritization: Evaluating neighborhood exposure to storm surges and tidal flooding using regional sea level data, with primary emphasis on nature-based shoreline buffers.
2. Community Workshops and Survey: Hosting 4 community workshops and conducting a citywide resident survey to incorporate public feedback before presenting the final adaptation plan to the American Canyon City Council.
3. Napa River Wetlands Integration: Leveraging the Napa River wetlands along the west side of American Canyon—one of the Bay Area's last remaining natural wetland buffers—where the California State Coastal Conservancy has separately awarded the city nearly $2.8 million to construct the Napa River Ecology Center, an environmental education facility featuring climate-resiliency infrastructure and connecting shoreline trails.