1. Home
  2. Caltrans Near Me
  3. District 4
  4. What You Need to Know
  5. Lanes Closed on Hwy 101 Overpasses in Sonoma County until Fall For Bridge Railing Replacement

Lanes Closed on Hwy 101 Overpasses in Sonoma County until Fall For Bridge Railing Replacement

Published:

One lane closes on Shiloh Rd and Limerick Lane on Monday, May 19, 2025
Part of a larger project also includes Mendocino Avenue and Fulton Road overcrossings

Windsor – Caltrans will close the eastbound lane on the Hwy 101/Shiloh Road overcrossing and the Limerick Lane overcrossing at 6:00 p.m. on the evening of Monday, May 19, 2025, to replace bridge railings on the overcrossings.

Eastbound Shiloh Road Detour map for closures of eastbound lane on the Hwy 101/Shiloh Road overcrossing and the Limerick Lane overcrossing, take Southbound Hwy 101 to Airport Blvd East to Northbound Hwy 101 onramp, take Northbound Hwy 101 and exit Eastbound Shiloh Road.
Limerick Lane Detour map for closures of eastbound lane on the Hwy 101/Shiloh Road overcrossing and the Limerick Lane overcrossing, from Eastbound Limerick Lane take right of Old Redwood Highway, turn left on Arata Lane and travel beneath the freeway, take left on Los Amigo Road to Eastbound Limerick Lane.

The eastbound lane on the Shiloh Road overpass in Windsor will be closed until mid-October 2025. Westbound traffic will not be detoured during the project.

The eastbound lane on the Limerick Lane overpass just south of Healdsburg will be closed until mid-summer, at which time the lane will reopen, and the westbound lane will close as Caltrans shifts work to the north side of the overcrossing until mid-October.

The railings, which also act as guardrails on the sides of the overpasses, are worn by time and weather, as well as deficient according to current safety standards, and must be replaced.

The overpasses carry one traffic lane in each direction and lack shoulders, forcing Caltrans to close one lane to provide sufficient room for construction crews to replace the railings.

The lane closures on the Shiloh Road and Limerick Lane overcrossings are part of a larger project to replace bridge railing at Hwy 101 in Sonoma County. Last week, Caltrans closed the eastbound lane on the Mendocino Overcrossing in Santa Rosa and the southbound lane of Fulton Road at the Hwy 101 overcrossing.

Detours

Eastbound Shiloh Road

  • Take southbound Hwy 101,
  • Exit onto eastbound Airport Boulevard, and drive over the freeway
  • Take the northbound Hwy 101 on ramp to Shiloh Road.

Eastbound Limerick Lane

  • South on Old Redwood Highway
  • Left on Arata Lane
  • Left on Los Amigos to Limerick Lane

During the project, work crews will replace the existing banister and tubular bridge railings with a concrete barrier, topped with decorative lattice for visual appeal.

The concrete barriers can withstand greater impacts during collisions and are much easier to maintain and sweep beneath.

Overpass off of Hwy 101 where tubular and banister bridge railings will be replaced, the bridge railings on Mendocino Avenue is part of a larger project to replace bridge railing on Highway 101 overpasses .
Tubular and banister railings

Overpass off of Hwy 101 where tubular and banister bridge railings were replaced with concrete barrier topped with lattice, the bridge railings on Mendocino Avenue is part of a larger project to replace bridge railing on Highway 101 overpasses .
New concrete barrier with lattice ironwork

 

For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.

| CleanCA.com | CleanWaterCA | #BeWorkZoneAlert | X | Facebook | YouTube |

###