Los Angeles River Bridge

The Los Angeles River Bridge carries Metro rail transit traffic over the L.A. River in Los Angeles, California. AVAR Construction Systems, Inc. was awarded the project, based on a bid price of approximately $14M for the cast-in-place segmental alternative in the spring of 1994.

The structure has a total length of approximately 900 ft. The three- span structure has end spans of 218 ft. and 231 ft. and a main span of 450 ft. The deck has a width of 39 ft. and carries two tracks. The cross-section varies in depth from 21 ft. at the piers to 8 ft. at the center of the span. The box girder has two vertical webs and is post-tensioned transversely.

Finley McNary redesigned the structure to allow the end spans to be cast on falsework, thereby reducing the number of travellers and cutting the schedule. The structure was built in single directional cantilever construction using two conventional form travellers. The Contractor cast one segment per traveller per week and finished all superstructure work on schedule. The project was completed in July of 1995.