I-5 Freeway Expansion Project Construction

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Upcoming closures, detours and activity

An easier drive for Southern California commuters is in progress. As road closure information is received from Caltrans, details will be posted regarding the I-5 Freeway Expansion Project in the City of Norwalk (Carmenita, Rosecrans/Bloomfield, and Norwalk/Imperial/Pioneer). For information on other segments along the I-5 corridor, please click on the Caltrans website www.I-5info.com and scroll down the map to the area you are interested in. Also, if you would like instant notifications via email, please click on the left side of the I-5info.com website to register your email address and the particular location you are interested in. If you have any questions, concerns, or suggestions you would like the City to share with Caltrans, please let us know so that we can bring it to their attention. You can call City Hall at(562) 929-5944 or email us at administration@norwalkca.gov.

Click on I-5 South Project Overview to get a big-picture view of the expansion. For specific project areas affecting Norwalk residents, see below.

Week of January 14, 2018


Next week crews are scheduled to resume nighttime work to excavate soil for the Florence Avenue bridge footings and to prepare for CIDH (cast in drilled hole) piles. This work will include nighttime full freeway closures on northbound and southbound I-5 between Norwalk Boulevard and I-605, to perform shoring activities (Sunday night through Thursday night). Please note, excavation work is not expected to be exceedingly noisy, but will include noise from construction equipment and back-up alarms.

The following closures are scheduled nightly Tuesday night, January 16 through Thursday night, January 18:

  • Northbound I-5 closed between Norwalk Boulevard and I-605, between 11:59 p.m. and 5 a.m. 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 closed between I-605 and Norwalk Boulevard, between 11 p.m. and 5 a.m. 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. 
  • Northbound I-605 Connector to Southbound I-5 closed between 9 p.m. and 5 a.m. 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 closed between 9 p.m. and 5 a.m. 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 12-10-17

Crews have resumed pile driving activity for the retaining wall adjacent to the northbound I-5 Florence Avenue on-ramp. Please be advised this work may be loud and disruptive due to equipment noise, vibration and pounding related to pile driving activity, and construction lighting (if equipment needs to be moved at nighttime). Pile driving activity will be ongoing for approximately twelve weeks and will take place weekdays between 7 a.m. and 3:30 p.m. 

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. While the intersection is closed, motorists will be directed to use an alternate route, as shown on the map below. 


There is a temporary pedestrian route in place 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.


Crews will close Imperial Highway underneath the I-5 on Sunday night, January 14. Imperial Highway will be closed between southbound Frontage Road and Adoree Street from 9 p.m. Sunday, January 14 to 6 a.m. Monday, January 15 to allow crews to work on bridge falsework.

Crews will continue work on the Pioneer Boulevard bridge deck and installing falsework on the Imperial Highway bridge. In addition, crews will perform structure backfill behind abutments on Imperial Highway.

As crews work on Imperial Highway, Norwalk Boulevard and Pioneer Boulevard bridges at I-5, one lane in each direction may be closed on each street (at I-5) during the daytime, between 8:30 a.m. and 3:30 p.m.


On Monday, January 8, crews opened the newly reconstructed northbound I-5 on- and off-ramp at Rosecrans Avenue and on Wednesday, January 10, crews opened the Bloomfield Avenue undercrossing, allowing traffic to pass underneath the I-5 freeway. These major milestones mark a significant step toward completion of the Rosecrans Avenue and Bloomfield Avenue bridge project. The work that remains over the next few weeks will include landscaping, electrical work, striping and other finishing work.

Next week, crews will close the southbound I-5 off-ramp at Rosecrans Avenue from 9 a.m. to 3 p.m. on Tuesday, January 16 and Wednesday, January 17. In addition, northbound I-5 off-ramp at Rosecrans Avenue will be closed from 10 a.m. to 2 p.m.  on Tuesday, January 16. Finally, on Wednesday night, January 17 and Thursday night, January 18, crews will reduce lanes on northbound and southbound I-5 at night from 11 p.m. to 5 a.m. between Carmenita Road and Norwalk Boulevard; at least one lane will remain open at all times.


All work has been completed on the Carmenita Road Interchange project.


Crews will continue falsework installation on the second half of the slab bridge near Arbor Place and will start removing falsework from the first half of the slab bridge. In addition, crews will continue installing a drainage system on North Firestone Blvd., at Trojan Way, as well as continuing work on the sewer system along South Firestone Blvd. 

The contractor is driving piles adjacent to northbound I-5 and Valley View bridge. This work will be conducted weekdays during the daytime between 7 a.m. and 3:30 p.m.  

*DISCLAIMER: Due to the dynamic nature of construction, please note that all dates and times are subject to change due to unforeseen operational factors or inclement weather.


For information regarding upcoming closures, detours and other construction activity, be sure to check out the project Google map. This map will be updated in real time, with the latest information regarding project construction. Click the image below to view the map.






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