San Juan Creek Bridge Upgrade and Rail Reliability
13.11.2025
The San Juan Creek Bridge now carries trains across San Juan Capistrano, and the upgrade improves reliability because OCTA and Metrolink replaced the 1917 structure with a sturdier, better-protected span.
This is reported by the railway transport news portal Railway Supply.

How the San Juan Creek Bridge Supports Rail Operations?
Along this part of the LOSSAN Corridor, OCTA and Metrolink see the new bridge as central to keeping trains running reliably. Crews built it beside the 1917 bridge, so trains kept running during construction.
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Project funding reached about $65 million, and OCTA drew on local, state, and federal programs. Measure M, a county half-cent sales tax, contributed significantly and covered upgraded foundations and added flood-protection work.
Why the San Juan Creek Bridge Matters for the LOSSAN Corridor?
Engineers focused on the basics first: deeper foundations and better protection from San Juan Creek. Those elements seem simple, but they really matter because heavy flows can threaten track stability near the bridge.
Doug Chaffee, who chairs OCTA, says thousands of passengers and freight customers depend on this stretch every day. In his words, the bridge upgrade is “an important investment in safety” for the corridor.
Source: railway-news.com
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