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San Juan Creek Bridge Replacement Project

Construction Updates

The Orange County Transportation Authority (OCTA), in coordination with Metrolink, is replacing the railroad bridge over San Juan Creek. Built in 1917, the bridge has reached the end of its useful life and will be replaced by a new three-span girder bridge.

Project Details

SJC Bridge

The San Juan Creek Bridge Replacement Project is replacing the railroad bridge over San Juan Creek in the City of San Juan Capistrano.

The project is constructing a new three-span girder bridge west of the existing bridge. The new bridge will enhance safety, reduce maintenance needs, and meet current design and bridge load standards. The existing bridge will be demolished, and a new foundation and substructure will be installed for a potential future bridge. There are no plans to construct a second bridge but if a need arises, the supporting infrastructure will be in place.

The bridge serves Metrolink and Amtrak Pacific Surfliner passenger trains, as well as freight trains.

The project will also:

  •    Construct tracks
  •    Construct a new bikeway underpass
  •    Construct retaining walls
  •    Install new utilities and signals
  •    Remove vegetation

Construction Activities

Crews are continuing construction activities for the substructure and piers for a potential future bridge at San Juan Creek. Ongoing work includes drilling operations, reinforcing steel installation, and weekly concrete pours within the project area.

Additional material deliveries are anticipated to continue intermittently through June with vehicles accessing the work area via Camino Capistrano and exiting via Stonehill Drive.

Work hours are Monday through Saturday, from 6 a.m. and 6 p.m.

This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

Drone footage of bridge removal activities

Drone footage of bridge removal activities

Latest Activity



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Construction Alert
May 29, 2026
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Construction Alert
May 22, 2026

Contact the Outreach Team

If you have any questions or would like to request information in another language, please contact the Outreach Team at (800) 724-0353 or email SJCBridge@octa.net.

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