San Luis sets truck detour on Cesar Chavez Boulevard through July 2026

Commercial trucks moving through central San Luis lost two turn options as the city and Arizona Department of Transportation put a new detour in place on Cesar Chavez Boulevard. The restriction blocks right and left turns from State Route 195 onto Avenue F and 10th Avenue, steering truck traffic to Avenue E or 8th Avenue through late July 2026.

The change started Wednesday, June 10, after the city announced the temporary detour on June 5. ADOT and the City of San Luis said the truck-only restriction is part of a broader reconstruction effort along 5 miles of Cesar Chavez Boulevard between Escondido Street and Avenue E, a corridor that carries freight, deliveries and service vehicles near the border.

The project carries a $65 million price tag and is designed to reshape the road from a two-lane rural route into an urban multimodal corridor. Plans call for widening Cesar Chavez Boulevard to four lanes with a center median, along with ADA-compliant sidewalks, bike lanes, enhanced transit stops and safety work near the San Luis Post Office and Joe Orduño Park.

The city’s project area runs from 200 feet west of Escondido Street to 300 feet west of Avenue E. ADOT project materials also call for a one-lane roundabout at Cesar Chavez Boulevard and Escondido Street, also identified as San Luis Plaza Drive, plus drainage, pavement marking, signals and lighting improvements as the rebuild advances.

For Yuma County’s border economy, the detour matters because Cesar Chavez Boulevard links central San Luis to the San Luis II Commercial Port of Entry and provides access to the Interstate 8 corridor. Even a restriction aimed only at commercial trucks can ripple through delivery schedules, freight timing and access for businesses that depend on steady traffic along the border route.

ADOT had already warned motorists in March to expect traffic shifts, a reduced speed limit and a vehicle width restriction on Cesar Chavez Boulevard through summer 2026, signaling that the June truck reroute is one step in a longer construction schedule. The city said signage would be provided in the area as drivers adjust to the new truck pattern.