San Diego County approves $4.74 million in Fallbrook traffic and stormwater work
The San Diego County Board of Supervisors approved infrastructure projects affecting Fallbrook on March 3, including new traffic signals and a stormwater-filtration project. County officials expect construction to begin in fall 2026 and finish by spring 2027.
The work is intended to address traffic safety, mobility and stormwater management in Fallbrook, an unincorporated San Diego County community. For residents, commuters and local businesses, the immediate practical change is a planned period of infrastructure construction rather than an operational traffic-signal system already in place.
What the county approved
The county described the action as part of an infrastructure package for unincorporated communities, including Fallbrook. The package includes new traffic signals in Fallbrook and a stormwater-filtration project in Fallbrook.
The county’s news release gave the anticipated cost for the infrastructure package as $4.74 million. That figure should not be read as a confirmed amount being spent solely inside Fallbrook: the available record summarizes three county projects overall and does not allocate the full total among them.
The county has not identified in the available record which Fallbrook intersections will receive signals, how many signals are planned, who the contractor will be or what traffic-control plan will be used. Those details matter for commuters, nearby property owners and businesses, but they have not been provided in the approved source material.
Construction timeline
Construction was projected to start in fall 2026, with completion expected by spring 2027. Those are county expectations, not a confirmation that work has begun or that a current construction start date has been announced.
A separate Fallbrook Public Utility District construction page, published July 20, 2026, reports ongoing downtown water-reliability pipeline replacement work. The utility district says that work may affect roads, but its page does not independently verify the county’s award, schedule or project details for the traffic-signal and stormwater work.
As the county’s projected construction window approaches, residents and other road users will need additional county information about locations, phasing and traffic management. For now, the approved record establishes the projects, their anticipated overall package cost and the expected fall 2026-to-spring 2027 window, but not the precise intersections or construction arrangements.
Sources
- County Approves New Traffic Signals, Road Improvements and Filtration Project, County of San Diego News Center
- Shutdown Updates & Construction, Fallbrook Public Utility District
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