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405 Improvement Updates

The Orange County Transportation Authority, in cooperation with Caltrans, is widening the San Diego Freeway (I-405) between SR-73 and I-605.The project is improving 16 miles of I-405 between the SR-73 freeway in Costa Mesa and I-605 near the Los Angeles County line. Construction updates are as follows: NB and SB I-405 Lane Reductions for Center Median Work

Crews will perform work in the center median on the I-405 at the Bolsa Avenue bridge. This work will require NB and SB I-405 HOV lane reductions between Bolsa Avenue and Goldenwest.

The lane reductions are set for 5 a.m.-12 p.m., starting Aug. 23 for approximately three months.

SB Boulevard Sidewalks

Crews closed the sidewalks at the intersection of Seal Beach Boulevard and Lampson Avenue for permanent traffic signal construction.

Seal Beach Boulevard and Lampson will be intermittently reduced to two lanes at the intersection for the duration of the work.

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