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.


Weeks of June 29 - July 13, 2018

Starting at 7 a.m. on Thursday, July 5, the contractor will begin removing the temporary construction fence between the Florence Ave. on-ramp to northbound I-5 and Longworth Ave.

This fence runs parallel to the nine homes with backyards facing Florence Ave. 

For approximately two weeks following the removal of the fence, crews will be working in that area from 7 a.m. to 4 p.m. Monday through Friday. The first week to back-fill the area and the second week for drainage work. 

The temporary fence will not be replaced. We thank the local residents for their patience and cooperation. 

I-5 Florence Ave. Project:

The nights of Wednesday, July 11 and Thursday, July 12, there will be construction noise along Florence Avenue on ramp to northbound I-5 near Longworth Avenue as trucks deliver aggregate in preparation for paving. This activity will occur between 9 p.m. and 5 a.m. each night.

I-5 Imperial Hwy. Project:

The Norwalk Blvd. off ramp from northbound I-5 is scheduled to close the morning of Monday, July 16 for a period of up to 90 days.



This project is 68% complete.

Projected date of completion for the Florence Ave. Bridge: *Updated to 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.

Grading and compacting continue at the retaining walls along the Florence Ave. on ramp to northbound I-5, east of I-5 and north of the Florence Ave. Bridge, June 29 (below):




And along the retaining wall west of I-5 and north of the Florence Ave. Bridge


Water trucks regularly spray down the construction sites throughout the day to prevent dust from floating into nearby neighborhoods (below):


The deck of the bridge over the railroad on northbound I-5 south of the Florence Avenue. June 12 and June 19, after construction of the rebar frame of approach slab started (below):



View of the future northbound lanes of I-5 between Orr & Day Bridge and the Florence Ave. Bridge (below): 


Caltrans recycles! This machine crushes concrete from old and demolished freeway structures into aggregate to be used for back-filling and for the base layer of new freeway lanes. The machine crushes the concrete, magnets remove any metal, conveyor belts pile it, loaders fill trucks and the trucks haul the aggregate to other work sites (below):




The retaining wall on the west side of I-5 north of the Florence Ave. Bridge (below):




Construction on this project is 84% complete.

Projected date of completion: Late 2018. 

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

Compacting and grading continue south of the San Antonio Bridge in preparation to pour concrete for the new lanes I-5 below:





One more lane of lean concrete base has been poured on northbound I-5 south of San Antonio Bridge; June 12 and June 19 (below):



"Approach slab" on the south end of the San Antonio Bridge before concrete pour (June 12) and after (June 19). Approach slabs provide extra stability for vehicles as they cross from the mainline lanes to the bridge (below):





Approach slab on the north end of the San Antonio Bridge before concrete pour (June 12) and after (June 19) (below):





A view of the San Antonio Bridge facing south from June 12 and June 19 (below):



Workers continue constructing the sound wall along northbound I-5 between the San Antonio Bridge and the Imperial Highway on ramp (below):


A view of the future NB I-5 lanes between the San Antonio Bridge and the Imperial Highway Bridge ready for concrete (below):


At 5 a.m. Wednesday, May 23 the new Imperial Highway on ramp to northbound I-5 opened to the driving public. The on ramp is only accessible from westbound Imperial Highway for the first few months. Eastbound traffic on Imperial Highway is directed by signage to use northbound Firestone Blvd. to northbound I-605 to northbound I-5. (Photo below):

Imperial 5-25-18

At 9 p.m. Tuesday, May 22, the Pioneer Blvd. on ramp to northbound I-5 closed permanently. Signs will be placed to direct northbound and southbound traffic on Pioneer Blvd. over to Firestone Blvd. to northbound I-605 to northbound I-5 as the alternate route. This area will be used to construct two additional lanes on northbound I-5. Within the next few weeks, pile driving will begin here and it will last several weeks. Local residents should be aware of loud construction noise during the hours of 6 a.m. to 4 p.m. (Photos below):

Imperial 5-25-18 6

I-5 from Silverbow Ave. north all the way up to Pioneer Blvd. is in varying stages of progress with crews spreading base (gravel), grading, compacting and paving. This activity includes compaction with a vibratory roller, so residents in the nearby neighborhoods may experience noise and vibration during the day.

As crews work on Imperial Highway, Norwalk Boulevard and Pioneer 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 29% complete.

Projected dates:
Completion of first half of Valley View Ave. Bridge: Approximately March of 2019.
Completion of second half of Valley View Ave. Bridge: Approximately December of 2020.
Completion of entire I-5 Valley View Ave. Interchange project: Approximately early 2021.

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

Workers continued building rebar walls for structural support across the deck of the Valley View Av. Bridge west of I-5 between the railroad tracks and the Arbor Place on ramp. (Photos below show progress June 5 to June 26):



June 19 & June 26 (below)



June 26 (below)




A view from below of the falsework frame of the Valley View Ave. Bridge at the railroad tracks west of I-5 on June 26 (facing south, below):


The contractor removed the concrete mold over the rebar frame of the Valley View Ave. Bridge pier wall west of I-5 after allowing the concrete to cure for five days. Photos of workers constructing the rebar frame of the pier wall (June 5); building the concrete mold over the exterior of the rebar frame (June 12); and removing the concrete mold (June 26) (below):


June 12 (below):


June 26 (below):



Reconstruction of the Coyote Creek Bridge at Trojan Way and N. Firestone Blvd. June 19 and June 26 (below);


June 26 (below):


On Monday, June 11, crews began pile-driving in the Coyote Creek channel near the intersection of Trojan Way and N. Firestone Blvd. Local businesses should expect vibration and noise during normal, daytime working hours. Photos from June 26 below: 


The contractor continues building a surcharge on the northeast corner of N. Firestone Blvd. at Valley View Ave. June 26 (below). A surcharge is a large deposit of dirt that will compress the earth below it in preparation for the construction of the new, elevated section of N. Firestone Blvd.



Workers construct barrier wall at the corner of Trojan Way & N. Firestone Blvd. June 26 (below):




The "old" intersection of Trojan Way at N. Firestone is now closed to through-traffic and will be available only to delivery trucks for Hawaiian Express and Numark (below):


The Arbor Place detour is in place as of Friday, May 11. Arbor Place is permanently closed at the old intersection with Valley View Ave. Traffic may turn right or left off of Valley View Ave. one-way onto Arbor Place under the bridge structure south of the railroad tracks. (There is a designated left turn lane on northbound Valley View Ave). Traffic will exit Arbor Place one-way using the new ramp that puts traffic onto eastbound Valley View Ave. 

Traffic on Valley View Ave. now accesses Arbor Pl. under the bridge just south of the railroad tracks (below):

Arbor-Truck 1

An elevated view of the one-way entrance from Valley View Ave. to Arbor Place and the one-way ramp from Arbor Place to Valley View Ave. south (below):


 Tractor trailers utilizing the new ramp where traffic exiting Arbor Place accesses southbound Valley View Ave. (below):


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. Will N. Firestone Blvd. also be rebuilt between Trojan Way and the I-5 on ramp?
Yes, but access between those two points will remain open during construction. The reconstruction will occur without a long-term closure.

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.

*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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