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 October 5 - October 12, 2018

*Update*: Northbound I-5 Overnight Full Closure - Rosecrans Ave. to I-605 

Tonight, Thursday, October 11

Norwalk / Santa Fe Springs - The California Department of Transportation (Caltrans) announces the scheduled overnight full closure of northbound Interstate 5 (Santa Ana Freeway) between Rosecrans Blvd. and Interstate 605 (San Gabriel River Freeway) with corresponding ramp closures to shift traffic lanes and move K-rail. Closures are subject to change and are scheduled as follows:

Tonight, Thursday, October 11:

* Northbound I-5 all lanes and corresponding ramps closed from Rosecrans Blvd. to I-605 from 11 p.m. to 5 a.m.

Detour signs will direct traffic off northbound I-5 to westbound Rosecrans Blvd. to northbound I-605 back to northbound I-5.

Alternate route: westbound State Route 91 (Artesia Freeway) to northbound I-605 to northbound I-5.

Please go to our Planned Lane Closure web page for confirmation of closures each night at https://lcswebreports-new.dot.ca.gov/SearchPreAction.do?district=7. Also watch for updates at twitter.com/My5LA.



This project is 68% complete.

Projected date of completion for the Florence Ave. Bridge:  December of 2019.

Project date for completion of project: Late 2019.

You may also go to our Twitter page at twitter.com/My5LA for project updates.

The contractor shifted southbound traffic on I-5 south of the Florence Ave. Bridge to the new lanes in the median on the night of September 30. Before and after photos below:



A view of the future Florence Ave. off ramp from northbound I-5 currently closed to the public. (photo below from October 2):


The Contractor is grading and compacting the area west of I-5 and under the Florence Ave. Bridge for the future on ramp to southbound I-5. Photos below from September 18.



New retaining wall



Grading near the support columns for the future north half of the Florence Ave. Bridge.


Construction of the sound wall along the Florence Ave. on ramp to northbound I-5 is now complete! This will provide a final noise barrier for the residents on Longworth Ave. Photos below.

Florence 9-7-18

 Florence 9-7-18 2


Construction on this project is 87% complete.

Projected date of completion: Late 2018. 

Also, please go to Twitter page at twitter.com/My5LA for project updates.

Construction continues on the Norwalk Blvd. off ramp from northbound I-5 (Photos below from October 2):1615-1




Construction continues to construct the median barrier rails along new lanes of I-5 between Norwalk Blvd. and Imperial Highway (Photos below from October 2): First the trench is dug and rebar base installed and filled with concrete:



Then a rebar frame for the barrier rail is placed above that and a form is constructed over the rebar.



Then the form is filled with concrete and the form is removed to reveal the concrete barrier rail:



We have been pouring concrete for new lanes on I-5 from south of Norwalk Blvd. to north of Imperial Highway for several weeks. Photos below from October 2.



The contractor is building a new median on Norwalk Blvd. north of San Antonio Bridge. (Photos below from October 2):


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.                                    


Construction on this project is 97% complete. The work that remains will include landscaping, electrical work, striping and other finishing work.

The contractor has completed installation of the pedestrian walkways along S. Firestone Blvd. and along Shoemakerf Ave. at Shoemaker Ave. Overcrossing (below):

 rosecrans 4-2-18

 rosecrans 2 4-2-18

rosecrans 3 4-2-18

rosecrans 4 4-2-18

rosecrans 5 4-2-18

rosecrans 6 4-2-18

The concrete decor finish beneath the Shoemaker Overcrossing on N. Firestone Blvd. is complete (below):

rosecrans 7 4-2-18


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


Construction on this project is 33% complete.

Projected dates:
Completion of first half of Valley View Ave. Bridge: Revised to *late 2019.
Completion of second half of Valley View Ave. Bridge: Revised to *late 2021.
Completion of entire I-5 Valley View Ave. Interchange project: Revised to *late 2021.

Also, please go to our Twitter page at twitter.com/My5LA for project updates.

The portion of Valley View Ave. Bridge over I-5: Workers have been removing the lumber forms from the concrete vertical support walls. These forms will then be used to build a horizontal base for a second grid of rebar.  These forms are called "lost forms", because once the concrete has been poured over the rebar grid, the forms will be left in place, but do not provide and structural support to the bridge. Photos below show progress from September 25 to October 2. 

Valley View 9-7-18 2   



The final layer of concrete has been poured over the rebar deck surface of the Valley View Ave. Bridge over Arbor Place and west of I-5 in Cerritos. The concrete has cured and tarps have been removed. High strength tendons have been run through the deck of the bridge (see red arrows below). Next, tension will be applied to the tendons to "pre-stress" and improve the performance of the concrete for bearing loads. Photos below from September 25 and October 2:


1247Workers are constructing the rebar frame for the pier walls that will support the new bridge over Coyote Creek east of I-5 near Trojan Way in La Mirada. The Coyote Creek Bridge will carry the new lanes of I-5 and N. Firestone Blvd. They are also building and assembling the lumber molds over the rebar to pour concrete to form the walls. The first section of concrete has been poured and is now covered to allow proper curing. Photos below are from September 18 ,September 25 and October 2:

Valley View 9-7-18 7

 Valley View 9-7-18 8


Workers have been grading the first section of the second half of the new Trojan Way at Firestone Blvd. and the new driveway to Hawaiian Express in La Mirada.  They are also constructing the new pedestrian walkway, curb and gutter. Photos below from September 25 and October 2:



Valley View Ave. will be elevated to meet with the new Valley View Ave. Bridge. In turn, N. Firestone Blvd. will be elevated to meet Valley View Ave. In preparation for these modifications, N. Firestone Blvd. is now reduced to one lane in each direction between Gateway Dr. and Valley View Ave. 

Trucks 2500 lbs. or more and / or at least 25’ long will not be permitted to:
• Drive on N. Firestone Blvd. between Valley View Ave. and Gateway Dr.
• Turn left or right onto N. Firestone Blvd. from Valley View Ave.
• Turn left from the northbound I-5 Valley View Ave. exit ramp at Gateway Dr.
to access Valley View. They must turn right onto N. Firestone Blvd.

Access to all local businesses will remain open.

Through the remainder of this project, there will be recurring closures of:

N. Firestone Blvd. between Valley View Ave. and Gateway Dr.

Valley View Ave. between Alondra Blvd. and Park Place.

Access to businesses within those closure parameters will ALWAYS be permitted. Secure the attention to workers on scene to allow access, if necessary.

N. Firestone Boulevard is CLOSED between Knott Avenue and Trojan Way in La Mirada until at least April of 2019 to prepare for the widening of I-5 and to allow demolition and reconstruction of the bridge over Coyote Creek. N. Firestone Boulevard will be rebuilt to the east. Closure and detour map below:


The City of La Mirada has requested increased assistance from the La Mirada Sheriff's Department enforcing the traffic regulations prohibiting large trucks from using N. Firestone Blvd. between the I-5 on and off ramps and Valley View Ave. Caltrans will secure enforcement assistance from the CHP and will be adding more signs to divert large trucks from the restricted portion of roadway.

Questions and Answers:

1. When construction is complete, will S. Firestone Blvd. still run through from Valley View Ave to Artesia Blvd.? 

2. When N. Firestone Blvd. is re-opened between Knott Ave. and Trojan Way, will traffic signals be installed at those two intersections?
The construction plans currently provide for stop signs only. Any changes would need to be requested by the city of La Mirada.

3. Will N. Firestone Blvd be rebuilt from Trojan Way all the way to the I-5 ramps? Yes

*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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