Five‑mile Ranchero Road Widening Project Enters Final Phase Over California Aqueduct
Hesperia, California (High Desert News Online) – Beginning Jan. 26, Ranchero Road will be closed between Seventh Avenue and Cottonwood Avenue in Hesperia as Beador Construction crews demolish the aging bridge over the California Aqueduct and build a wider replacement structure, halting all vehicle travel across the aqueduct until at least December 2026. The project will construct a new bridge with two lanes in each direction as part of the broader Ranchero Road Widening Project, and drivers are urged to expect delays, follow posted detours, and allow extra time when traveling to Interstate 15 and Highway 138.
The City of Hesperia will shut down a key stretch of Ranchero Road on Jan. 26 so workers can demolish and replace the bridge over the California Aqueduct, with traffic across the aqueduct closed through the end of 2026 and detours in place to I‑15 and Highway 138. Residents who live inside the closure area will keep access to their homes, but through‑traffic will be prohibited while the new four‑lane bridge is built as the final phase of the Ranchero Road corridor expansion.
Ranchero Road, a key east‑west commuter route in Hesperia and the broader Victor Valley, will see a full closure between Seventh Avenue and Cottonwood Avenue starting Jan. 26 as demolition begins on the existing bridge over the California Aqueduct. The closure will eliminate all vehicle crossings of the aqueduct at Ranchero Road while construction crews work on a replacement bridge, with the City of Hesperia estimating completion around December 2026.
City officials say the work is part of the Ranchero Road Widening Project, a multi‑phase effort to improve a roughly five‑mile corridor between the Burlington Northern Santa Fe (BNSF) railroad grade separation on the east and the Interstate 15 interchange on the west. The new aqueduct bridge will provide two lanes in each direction and is being designed to accommodate the city’s long‑term plan for up to six lanes on Ranchero Road, addressing congestion and safety concerns tied to regional growth in the High Desert.
During the closure, residents who live within the affected stretch of Ranchero Road will still be able to reach their homes, but no vehicles will be allowed to pass over the aqueduct itself. Detours will be posted, and motorists heading to I‑15 or Highway 138 are being directed to use alternate routes such as Main Street or Summit Valley Road, with drivers advised to expect delays, obey all posted signs and speed limits, and budget extra time for daily commutes.
The aqueduct bridge replacement follows earlier phases that transformed Ranchero Road into a major connector for Hesperia and Victor Valley drivers. In 2013, the city completed a BNSF underpass that finally linked both sides of Ranchero Road across the railroad, a project that took about 20 years to realize and opened a new east‑west corridor for residents and emergency responders. A second phase added a new I‑15/Ranchero Road interchange with a six‑lane overcrossing and reconfigured frontage roads, easing pressure on other Victor Valley interchanges and improving freeway access for southern Hesperia neighborhoods.
The existing aqueduct bridge dates back to 1969 and currently carries only one lane in each direction, with no room to add lanes or modern pedestrian and bike facilities. City documents classify the structure as functionally obsolete and note that it no longer meets certain Department of Water Resources requirements, making full replacement—rather than simple widening—the preferred solution for long‑term safety and mobility along Ranchero Road.
Funding for the latest phase comes from a mix of local, county, and state transportation dollars. The overall widening effort, including the aqueduct bridge replacement and related improvements, has been budgeted in the tens of millions of dollars, with the City of Hesperia partnering with San Bernardino County and the San Bernardino County Transportation Authority to move the project forward. The city began right‑of‑way acquisition several years ago and held a groundbreaking ceremony for the widening in early 2022, signaling its commitment to making Ranchero Road a higher‑capacity, multimodal corridor for the growing High Desert region.
For drivers, the upcoming closure represents another period of short‑term inconvenience in exchange for a long‑term capacity upgrade on one of Hesperia’s primary east‑west lifelines. Motorists who rely on Ranchero Road to reach I‑15, Highway 138, schools, and job centers across the Victor Valley are being encouraged to stay informed about detours and construction progress as the aqueduct bridge work advances toward its projected completion at the end of 2026.
