Mexico’s Secretaría de Infraestructura, Comunicaciones y Transportes (SICT) has begun resurfacing sections of the Transpeninsular Highway in and around San Quintín, backed by a 632.5 million peso (approximately $32 million USD) investment. The work falls under the federal “Justicia para San Quintín” program, which the agency called a historically significant commitment to the region.
Crews are patching potholes, cleaning culverts, milling worn pavement, and laying new asphalt on stretches running south from San Quintín to the 28th Parallel, near the Baja California state line with Baja California Sur. The highway, officially known as Federal Highway 1 or Carretera Transpeninsular Benito Juárez, is the only paved route connecting the northern and southern halves of the peninsula across its full 1,711-kilometer (1,063-mile) length from Tijuana to Cabo San Lucas.
What Drivers Should Expect
Work zones are marked with signage and staffed by trained traffic coordinators. Drivers traveling between San Quintín and the state line area should expect slowdowns and possible lane restrictions. The SICT urged motorists to follow posted directions at each construction point.
The San Quintín segment of the highway, roughly 196 kilometers south of Ensenada, has long been one of the most deteriorated sections on the peninsula. In February 2026, Baja California state legislator Dunnia Montserrat Murillo López formally called on SICT to prioritize repairs on this exact corridor, describing the road as “the backbone of daily life” for residents and workers in the agricultural region.
Bridge Work Also Underway at Bahía de Los Ángeles
Under the same program, construction continues on the second phase of the “La Gringa” bridge near Bahía de Los Ángeles, the remote fishing and camping destination on the Sea of Cortez side of the peninsula. No timeline for completion of the bridge project was provided.
The Transpeninsular Highway’s condition in Baja California Sur has also drawn scrutiny. In early 2025, the federation allocated 70 million pesos for rehabilitation work on the BCS portion of the road, and then-Governor Víctor Castro Cosío publicly criticized the pace of repairs, calling on the SICT to “act as soon as possible.” The new 632.5 million peso investment for the Baja California side dwarfs that earlier allocation by a factor of nine.
For anyone planning the full peninsula drive, the resurfacing work is a welcome development on a road where potholes and crumbling asphalt have been a persistent hazard. The story was first reported by La Jornada Baja California.