Demolition of the old Norwalk Boulevard / San Antonio Drive bridge at I-5 has been completed. This was the final bridge demolition for the Imperial Highway / Pioneer Boulevard project. Photos and video of the demolition are available here with select photos below.


On Sunday, Aug. 20 and Monday, Aug. 21 the contractor will be performing nighttime operations between 9 p.m. and 6 a.m., to pull out shoring boxes and will close southbound Pioneer Boulevard to traffic between Crewe Street and Imperial Highway.

Sunday, Aug. 20 through Thursday, Aug. 24, Imperial Highway will be closed nightly from 9 p.m. to 6 a.m., between Adoree Street and South Frontage Road, for drilling operations for CIDH (cast in drilled hole) piles.

On Tuesday, Aug. 22 between 8:30 p.m. and 6 a.m., Imperial Highway will be closed between Adoree Street and South Frontage Road for concrete operations.

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

Pile driving activity along I-5 at Pioneer Boulevard and Imperial Highway is ongoing; this work will be conducted weekdays between 7 a.m. and 3:30 p.m. and will be ongoing intermittently for approximately four more weeks. Please be advised this work may be loud and disruptive due to equipment noise, vibration, and pounding related to pile driving activity.

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.

For full closure and detour information, please see the Google map below.


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