Imperial Highway & Pioneer Blvd. Project – Week of Apr. 13 – April 20, 2018

Construction on this project is 80% complete.
Projected date of completion: Late 2018. 


Imperial Highway is scheduled to be closed under I-5 between Adore St. and the Frontage Rd. from 8 p.m. Thursday, Apr. 19 until 6 a.m. Friday, Apr. 20 to pour concrete on the deck of the Imperial Highway Bridge. The southbound Imperial Highway off-ramp will remain open.

IMPERIAL HIGHWAY DETOUR MAP: The approximate closure area is highlighted in red; the recommended detour route is highlighted in blue.


New steel girders over San Antonio / Norwalk Blvd. for the second half of the San Antonio Bridge that will support new northbound lanes of I-5 (below):

View from above:

View from below:   


This past week, crews began pouring the final layer of concrete for the new northbound lanes of I-5 between Imperial Hwy & Pioneer Blvd. (below). The final layer is almost 14″ thick:


Workers also began final block construction of the sound wall along the new Imperial Highway on ramp to northbound I-5 (below):



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 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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