Work to remove the remaining portion of the sound wall along the northbound I-5 Florence Avenue on-ramp, adjacent to Longworth Avenue, will resume Friday, June 2 and will continue the week of June 4. Once the sound wall removal operation is completed, crews will immediately begin work to construct the new sound wall. A privacy fence has been installed along Longworth Avenue, adjacent to northbound I-5 freeway. This work will be conducted weekdays, between 7 a.m. and 3:30 p.m. Please be advised, this work may be loud and disruptive due to concrete demolition and removal, equipment noise, sound wall construction activities and truck back-up alarms.

Next week crews will continue drilling CIDH (cast in drilled hole) piles along northbound I-5, in order to prepare the foundation for the new soundwall adjacent to Longworth Avenue. This operation will be conducted weekdays, between 7 a.m. and 3:30 p.m.

Finally, beginning Wednesday, June 7 crews will being nighttime work to construct the falsework system for the new half of the Florence Avenue bridge. The falsework system is used as a gigantic work table to provide support while constructing bridge and it includes a top, legs, feet and bracing. Just as a work bench is assembled, the pads or feet of the falsework touch the ground surface and the very top of the work bench is what crews call the soffit. It is atop that elevated surface of the falsework where crews build and cast the new bridge superstructure. Due to safety considerations, this work must be conducted at night when the freeway can be closed. This operation is not expected to be excessively loud and / or disruptive. The following closures are planned next week as part of this work:

  • Beginning Wednesday, June 7 Northbound I-5 will be closed nightly for four to five nights (excluding weekends) between 11:59 p.m. and 5 a.m., from Norwalk Boulevard to I-605.
    DETOUR: Motorists will exit northbound I-5 at Norwalk Boulevard off-ramp, proceed west on Adoree Street, turn left on Imperial Hwy., turn right on Firestone Boulevard and proceed to the northbound I-605 on-ramp; then transition onto northbound I-5.


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