Florence Avenue Interchange


Beginning Monday night, Dec. 4, crews will begin three nights of construction activity to demolish the north half of the Florence Avenue bridge at I-5. Please be advised this work may be loud and disruptive due to construction equipment, concrete demolition, back-up alarms and other related activities.

Northbound I-5 and Southbound I-5 will be closed nightly between 11 p.m. and 5 a.m., Monday, Dec. 4 through Wednesday, Dec. 6, between I-605 and Norwalk Boulevard.

  • Northbound I-5 Detour: Exit northbound I-5 at Norwalk Boulevard off-ramp, west on Norwalk Boulevard / San Antonio Drive, west on Firestone Boulevard to the northbound I-605 on-ramp. Transition from northbound I-605 back onto I-5.
  • Southbound I-5 Detour: Southbound I-5 traffic will be directed onto southbound I-605, exit at Firestone Boulevard, east on Firestone Boulevard, east on Imperial Highway, south on southbound Frontage Road to the southbound I-5 on-ramp.

In addition, Florence Avenue will be closed to all traffic in both directions (between Studebaker Road and Orr and Day Road), nightly between 8 p.m. and 5 a.m., Monday, Dec. 4 through Thursday, Dec. 7.

Florence Avenue Alternate Routes Map

Finally, Northbound and Southbound I-605 connectors to Southbound I-5 will also be closed nightly between 9 p.m. and 5 a.m., Monday, Dec. 4 through Thursday Dec. 7: 

  • Northbound I-605 Connector to Southbound I-5 Detour: Motorists will exit northbound I-605 at Imperial Highway off-ramp, east on Imperial Highway, south on SB Frontage Road to access the southbound I-5 on-ramp.
  • Southbound I-605 Connector to Southbound I-5 Detour:
    Motorists will continue on southbound I-605, exit Firestone Boulevard off-ramp, east on Firestone Boulevard, east on Imperial Highway, south on SB Frontage Road to access southbound I-5 on-ramp.

Florence Avenue Bridge Lane Reduction at I-5

Overview:

The Florence Avenue Bridge over I-5 is being reconstructed, one half at a time, to accommodate the I-5 freeway widening. As of Nov. 28, 2017, crews have moved into the next stage of construction on the Florence Avenue bridge (Stage 2 Phase 1). Traffic has been shifted onto the newly constructed south half of the Florence Avenue bridge and the new lane configuration includes two lanes for westbound traffic and one lane for eastbound traffic. The new temporary traffic configuration on Florence Avenue for Stage 2 Phase 1 is shown on the map below; closure areas are shown in red.

The Florence Avenue on-ramp to northbound I-5, in the city of Santa Fe Springs, will also be closed for the duration of this work.

As part of Stage 2 Phase 1, crews have also begun reconstructing the intersection of Orr and Day Road at Florence Avenue, to accommodate the new higher elevation of the Florence Avenue bridge. Please note, the intersection of Orr and Day Road, from Longworth Avenue to Florence Avenue, has been closed for approximately two months (weather permitting), as of Tuesday, Nov. 28, 2017. While the intersection is closed, motorists will be directed to use an alternate route, as shown on the map below.

Finally, during Stage 2 Phase 1 construction, there is a temporary pedestrian route along the south side of Florence Avenue. Pedestrians can follow the route outlined in green on the map below. To explore the pedestrian route, click on the map below.

Improvements:

The Florence Avenue bridge will be widened from the existing four lanes to six lanes. In addition to being wider, the new bridge will also be approximately nearly 3 feet higher and 321 feet longer. Finally, pedestrian access is being improved and on- and off-ramps are being reconstructed and realigned to accommodate the I-5 freeway widening.

How Is This Going to Affect Me?

Heavy traffic and delays in the area are anticipated. Use alternate routes whenever possible. There are three main alternative routes for Florence Avenue, for northbound, eastbound and westbound traffic, as shown on the maps below.

ALTERNATE ROUTES – Florence Avenue Bridge Reconstruction

PDF Map Download: Florence Alternative 3 Routes.pdf

Florence Avenue Bridge Reconstruction – Staging Maps

PDF Map Downloads are Below

Santa Fe Springs Bridge Stage 1 Phase 3B Map
Santa Fe Springs Bridge Stage 1 Phase 4 Map
Santa Fe Springs Bridge Stage 2 Phase 1 Map
Santa Fe Springs Bridge Stage 2 Phase 2 Map
Florence Final Configuration Map



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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