Imperial Highway & Pioneer Blvd. Project – Week of November 16- November 23, 2018

Construction on this project is 87% complete.
Projected date of completion: *Spring 2019. 

Also, please go to our Twitter page at for project updates.

*Update: Full closure of northbound I-5 scheduled from 11 p.m. Tuesday, Nov. 20 until 5 a.m. Wednesday, Nov. 21:

• Northbound I-5 all lanes and corresponding ramps from Rosecrans Blvd. to Imperial Highway will be closed.
• The Imperial Highway on-ramp to northbound I-5 will remain open.
• The new Norwalk Blvd. off-ramp from northbound I-5 is scheduled to open to the public at 5 a.m. on Wednesday, Nov. 21.

Detour signs will direct traffic off northbound I-5 to westbound Rosecrans Blvd. to northbound Firestone 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 Also watch for updates at


Crews are constructing the sound wall along the Norwalk Blvd. off ramp from northbound I-5. Photos below from November 13:


“Pilasters”, or decorative columns, are added to the sound wall as part of the construction. Photos below from October 30 show the form assembled over the rebar frame of the pilaster and then the finished pilaster after concrete has been poured and the form removed:


Construction continues on the Norwalk Blvd. off ramp from northbound I-5. Crews finished pouring a final layer of black asphalt over the concrete base on the off ramp as we move closer to completion. (Comparison photos below from October 30 and November 13). (Tap / click on photos for slide show and details):


We are also reconstructing the median and adding lanes to Norwalk Blvd. north of the San Antonio Bridge. Photos below from October 30 and November 13:


Workers continue to construct the median barrier rails along new lanes of I-5 between Norwalk Blvd. and Imperial Highway. Photos below from October 30 and November 13:


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.


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