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 May 21, 2017

 Please note the following closure updates this week, listed in red below.


Crews will demolish the remaining bridge abutment on the Florence Avenue Bridge along southbound I-5 on Monday night, May 22. On Tuesday night, May 23 crews will process the material from bridge demolition for removal. Due to safety considerations, this work must be conducted at night when the freeway can be closed. Please be advised, this wok may be loud and disruptive due to concrete demolition and removal, equipment noise and truck back-up alarms.


The following updated closures are scheduled for Tuesday night, May 23: 

  • Northbound I-5 will be closed between Norwalk Blvd. and I-605 from 11:59 p.m. Tuesday, May 23 to 5 a.m. Wednesday, May 24. DETOUR Motorists will exit northbound I-5 at Norwalk Blvd. off-ramp, proceed west on Adoree St., turn left on Imperial Hwy., turn right on Firestone Blvd. and proceed to the northbound I-605 on-ramp; then transition onto northbound I-5.


On Wednesday night, May 24, crews will begin nightime demolition activity to remove the old Pioneer Boulevard bridge at I-5 freeway. This work will be ongoing at night for approximately two weeks. Please be advised this work may be loud and disruptive.
While demolition work is being conducted, Pioneer Boulevard will be closed to all traffic in both directions, between Imperial Highway and Crewe Street nightly from Sunday through Thursdays, between 9 p.m. and 6 a.m. for approximately two weeks. The northbound I-5 Pioneer Boulevard on-ramp will also be closed nightly while this work is completed. The closure is shown in red on the map below. Motorists will be directed to follow the detour routes highlighted in green, to bypass the closure area. The information can also be found on the project Google map.


Imperial Hwy and Pioneer Blvd

 This information can also be found on the project Google map.



There are no closures scheduled the week of May 21.

Rosecrans Avenue may be closed to all through traffic (motorists and pedestrians) in both directions underneath I-5, Monday through Fridays between 9 p.m. and 5 a.m. Nighttime closures on Rosecrans Avenue will continue intermittently for the next six months. For detour information visit the project Google Map.


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


Crews will close Valley View Avenue on Friday, May 26 between 1 a.m. and 5 a.m., from Artesia Boulevard and Alondra Boulevard, for crane mobilization. The closure area is shown on the map below in red. Detour routes are shown in blue and green

Sunday, May 21 through Thursday, May 25, crews will be performing work in the center median along northbound and southbound I-5 between Artesia and Alondra Boulevards. In order to complete this work, there will be partial lane reductions on I-5 and the northbound and southbound I-5. In addition, northbound and southbound I-5 on-ramps at Valley View may be closed between 7 p.m. and 6 a.m. Motorists who wish to access northbound I-5 on-ramp will be directed to go north on Valley View Ave., west on  Alondra Blvd., and north on Carmenita Rd. to access the NB I-5 on-ramp. Motorists who wish to access the southbound I-5 on-ramp from Valley View will proceed south on Valley View Ave., east on Artersia Blvd. to access the southbound I-5 on-ramp.

Pile driving and shoring activities are ongoing on the south side of Valley View Avenue. 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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