Florence Avenue Interchange

Improvements:

The Florence Avenue Bridge will be widened from the existing four lanes to six lanes. The new bridge will also be approximately three feet higher and 321 feet longer. Finally, pedestrian access will be improved and on and off-ramps are being reconstructed and realigned to accommodate the I-5 freeway widening.

Original bid amount: $79.2 million.

This project is 82% complete.

Construction of the first half of the Florence Ave. Bridge is complete. Construction of the second half of the Florence Avenue Bridge has been moved to the final phase of construction with a projected completion date of early April 2020.

The contractor is excavating earth in the median to lower the roadway surface up to four feet to pass under the second half of the new bridge. Then new lanes will be constructed and erection of falsework will continue. Photos below from July 9:

The contractor started construction of “falsework” (temporary frame support) for the second half of the Florence Ave. Bridge just north of the first half of the new bridge. Photos below from June 18:

One lane of the northbound I-5 connector to I-605 is open to traffic. Crews continue to build new lanes between the connector and the current lanes. Photos below from June 25:

The contractor completed placing forms over the rebar frame of the traffic barrier rail along the retaining wall that separates the Florence Ave. on ramp to northbound I-5 (above) from the northbound I-5 connector to I-605 (below). Concrete was poured and the forms removed. Photos below from April 30 and May 7:

The first half of the Florence Ave. Bridge with pedestrian walkway opened to traffic in November of 2017:

Paving of the future Florence Ave. on ramp to northbound I-5 and construction of the sound wall is complete. Construction of the following is also complete: support columns for the second half of the Florence Ave. Bridge; of the Florence Ave. off ramp from northbound I-5; of the Florence Ave. on ramp to southbound I-5; retaining walls on both sides of the freeway. Some photos below:

Florence Avenue Bridge Reconstruction – Final Configuration Map

Florence Final Configuration Map


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Project Overview

The Santa Ana Freeway (Interstate 5) Florence Avenue Interchange Project will widen I-5 to add one High Occupancy Vehicle (HOV) or carpool lane, and one general purpose lane in each direction. The project extends through the cities of Downey and Santa Fe Springs to just north of the San Gabriel River Freeway (Interstate 605) bridge.

The freeway improvements include widening structures at Florence Avenue and Orr and Day Road, shoulder widening, median barriers, new on-ramp and off-ramp designs, and reconfiguring the Florence Avenue interchange at the I-5. The Florence Avenue overcrossing will be widened from four lanes to six lanes.

Project Map

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