Orange Country Transportation Authority

Placentia Undercrossing
The Orange County Transportation Authority (OCTA) will construct a vehicle undercrossing at the intersection of Placentia Avenue and the Burlington Northern Santa Fe railroad. As part of the project, the roadway will be lowered to separate car traffic from train traffic. The underpass will be located between Crowther Avenue and State Route 57.

During construction, Placentia Avenue will be open to travel in both directions, with cars traveling on a temporary roadway constructed just east of the current route while train traffic is realigned.

When completed, the project will move cars safely and smoothly under the railroad tracks, enhancing safety and boosting mobility.