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 September 24, 2017 


The week of Sept. 24 crews will pour concrete in the center median of I-5 at Florence Avenue. In order to complete this work crews will conduct one night of work, which will involve closures on I-5 from Florence Avenue to I-605. The date of this work and the closure details have not yet been set, but will be provided as soon as details are finalized. 

Information will also be updated on the project Google map as soon as it is available.

Work is underway to construct the new sound wall along the northbound I-5 Florence Avenue on-ramp, adjacent to Longworth Avenue. CIDH (cast in drilled hole) work has been completed along northbound I-5. In addition, crews have poured the footing along the new sound wall. 

A portion of the sidewalk on Longworth Avenue, adjacent to the northbound I-5, has been closed to accommodate sound wall reconstruction. A chain link fence has been installed to close this area of the sidewalk from public access through the end of 2017. The sidewalk will be restored once sound wall construction is complete. While the sidewalk is being reconstructed, the sidewalk across the street from this work is open and accessible for public use.


Crews will continue pile driving at Norwalk Boulevard / San Antonio Drive bridge; this work will be conducted weekdays between 7 a.m. and 3:30 p.m. and will be ongoing intermittently for approximately the next six weeks. Please be advised this work may be loud and disruptive due to equipment noise, vibration and pounding related to pile driving activity. 

Sunday, Sept. 24 through Thursday, Sept. 28, the contractor will be performing falsework operations and column work nightly between 9 p.m. and 6 a.m. and will close southbound Pioneer Boulevard to traffic between Crewe Street and Imperial Highway.

Closure areas are shown in red on the map below; detour routes are highlighted in green. Unless otherwise noted, work will be performed between 9 p.m. and 6 a.m. 


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

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


Over the next two to three weeks crews may take intermittent daytime lane closures on Rosecrans Avenue at I-5, Mondays through Fridays between 8:30 a.m. and 3:30 p.m. At least one lane will be open in each direction, at all times. These lane closures may be needed to allow crews to complete paving work on Rosecrans. Avenue.

In addition, the week of Sept. 24 crews may reduce lanes on northbound and southbound I-5 at Rosecrans Avenue, at night between 10 p.m. and 5 a.m.; at least one lane will remain open in each direction, at all times. These nighttime lane reductions are needed so crews can complete paving work and move equipment within the work area.

Nightly closures are ongoing on Firestone Boulevard south, between Shoemaker Avenue and Carmenita Road (shown in red below), between 7 p.m. and 5 a.m., Mondays through Fridays; this work will be ongoing into October. The contractor will be performing nightly concrete pours throughout the project area and these closures are necessary to allow for construction vehicle staging and to maintain nightly access for the contractor to their concrete plant. 

Flaggers will be on site to maintain access for businesses within the closure area shown below in red. However, there will be no through access along this portion of Firestone Boulevard south for the general public. Available alternate routes are highlighted in the map below in blue.

Rosecrans 8-18-17

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


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


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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