The road being built

What is under construction on the corridor, and what already opened

SBCOG plans and funds the highway work between Hollister and Gilroy. Three projects sit on that stretch of road: the State Route 25 improvement project, the completed 25/156 turbo roundabout, and the State Route 156 improvement project. A share of the local streets and roads program is Measure G money too.

SBCOG project map showing the State Route 25 improvement alignment between Gilroy and Hollister with the proposed frontage road — SBCOG's own project map of the State Route 25 alignment between Gilroy and Hollister, including the proposed frontage road.

Three projects, one corridor

Segment by segment

SR 25

State Route 25 improvement project

Widening and realignment of State Route 25 between Hollister and Gilroy, with a proposed frontage road. SBCOG published the project's purpose and need statement, its range of alternatives, and a fact sheet in October 2024, followed by a frequently asked questions document in February 2025.

SR 25 Improvement Project: Fact Sheet · SR 25 Corridor Improvement Project: Frequently Asked Questions · What changes and where

SR 25 / 156

25/156 turbo roundabout, completed

Construction on the roundabout at the junction of State Routes 25 and 156 began in May 2022 and was complete by February 2024. SBCOG issued its construction notices in both English and Spanish throughout the project.

Fact Sheet & FAQ, English · Ficha informativa y preguntas frecuentes, Español · Construction notice, May 2022 · Project complete, February 2024

The construction-complete and nears-completion notices were both published bilingually, in the same document.

SR 156

State Route 156 improvement project

Corridor improvements to State Route 156 west of Hollister, toward San Juan Bautista and the Highway 101 junction. Caltrans broke ground in October 2022; all four lanes between Hollister and San Juan Bautista opened at a ribbon cutting in June 2025.

Fact Sheet & Map, September 2023 · Ficha informativa y mapa, Español, mayo de 2024 · All four lanes open, ribbon cutting, June 2025

The fact sheet and map were published separately in English and Spanish. The construction-begin notice in August 2022 and the ribbon-cutting notice in June 2025 were both published bilingually.

Local roads

Local streets and roads program

A share of Measure G funds passes through to local streets and roads maintained by the county and its cities, alongside the highway work above.

How Measure G funds are divided

Ceremonial shovels laid out before a San Benito County highway project groundbreaking — The point where a planned segment becomes a construction project.

See project updates in board and committee packets