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Retaining Wall Concrete Pour

As crews continue constructing the new retaining wall along the southbound MacArthur Boulevard on-ramp, an overnight concrete pour is planned on Thursday, Oct. 3 from midnight to 5 a.m.

This work will require closing the southbound MacArthur Boulevard straight and loop on-ramps, as well as one outside lane on southbound SR-55 at MacArthur.

Extended Closure of Northbound SR-55 MacArthur Boulevard Off-Ramp

Crews will be pouring concrete on the northbound SR-55 MacArthur Boulevard

off-ramp, which will require an extended closure of the off-ramp. Once the off-ramp reopens, it will be temporarily restriped to include one left-turn and one right-turn lane at the MacArthur intersection. The single lane off-ramp for eastbound MacArthur will be permanently eliminated.

The off-ramp is expected to close as early as 9 p.m., Friday, Oct. 11 and reopen to motorists by 5 a.m., Monday, Oct. 21.

This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

Closure and Detour Map.

Temporary Lane Configuration After Extended Closure.

Bookmark the closures and detours map for quick access to real-time construction information. Click on the construction icons to view activities and closures.

This week's Focus on 55 business spotlight is Wedding Day Studio. They provide custom wedding day reception decor, signs and sweetheart table decor. Their unique creative designs are produced in Southern California for brides all over the world.

18002 Irvine Blvd., Tustin, CA 92780

949-272-0743

weddingdaystudio.etsy.com

wedding@markomark.com

To learn more about OCTA's Focus on 55 Program, including official rules and eligibility, visit octa.net/Focuson55 or click here to enroll your business today.

OCTA, in cooperation with Caltrans, is improving 4 miles of SR-55 between I-405 and I-5. The project will improve traffic flow and reduce travel time by adding one regular lane and one carpool lane in each direction. Also, the project will add merge lanes between several interchanges and stripe carpool lanes for continuous access, augmenting safety on the freeway by making merging easier. These enhancements are expected to create a better, smoother driving experience for motorists.