RivCo Supervisors OK Cost-Sharing Agreement Stemming From Bain Fire

RIVERSIDE, CA — The Riverside County Board of Supervisors Tuesday formally approved a three-way cost-sharing agreement associated with a 1,473- acre wildfire that started in the Santa Ana River bottom last spring, causing significant damage.

In a 4-0 vote without comment — and Supervisor Yxstian Gutierrez absent — the board on Tuesday signed off on the compact between the county, Cal Fire and city of Riverside, establishing the obligations of each entity in carrying suppression and cleanup expenses stemming from the Bain Fire, which lasted from May 19 to May 25.

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The aggregate costs were not cited in documents posted to the board's agenda, and requests for specific dollar amounts from the county, city and state were not immediately answered. However, county fire spokeswoman April Newman told City News Service that "no additional costs" were created by the fire containment and suppression operations, which were factored into the agency's 2025-26 fiscal year budget.

The blaze crossed from Jurupa Valley into Riverside, as well as the "state responsibility area" under Cal Fire's sole jurisdiction. The county's portion of costs is tied to Jurupa Valley, which contracts with the county for fire protection.

"Due to the location and threat of the Bain Fire, the fire costs are shared by the county, Cal Fire and the city of Riverside," according to a statement posted by the Executive Office. "A one-time cost share agreement is necessary to distribute the costs of fighting this specific fire incident. No budget adjustments are requested."

The brush fire broke out May 19 and burned through heavy vegetation around the Santa Ana River bottom, expanding throughout the Hidden Valley Wildlife Area, approaching a Riverside neighborhood. The blaze's forward progress was stopped on May 22, but it was not declared 100% contained until three days later.

At its height, more than two dozen engine crews, along with multiple hand crews, seven water-dropping helicopters and a dozen air tankers were battling the brusher.

Residential properties were threatened but not damaged.

An official finding regarding what led to the wildfire has not been released. The Santa Ana River bottom is replete with homeless encampments, and cooking, debris and warming fires are a threat year-round.

The Hidden Valley preserve sustained extensive damage, impacting the Nature Center building on Arlington Avenue, playgrounds, hiking and equestrian trails and other amenities, some of which have since been restored, though the work continues.