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WHAT:

Crews are expected to install railing on the overhang along the east side of the SR-55 bridge over MacArthur Boulevard as part of the bridge reconstruction.  

This work will require a full closure of MacArthur under the freeway as well as the northbound and southbound loop on-ramps. The off-ramps and the straight on-ramps will remain open.

WHEN:

Eastbound MacArthur will be closed from 9 p.m. to 5 a.m. nightly, beginning as early as Tuesday, Aug. 8 to Thursday, Aug. 10.

Westbound MacArthur will be closed from 9 p.m. to 5 a.m. nightly, beginning as early as Friday, Aug. 11 to Tuesday, Aug. 15, excluding weekends.

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

Crews began nighttime demolition on the east side of the Edinger Avenue bridge earlier this week and will move to the west side immediately after. Demolition activities are expected to continue through mid-August.

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 the UPS Store. Located in Old Town Tustin, this locally owned and operated company has been helping individuals and small businesses pack and ship worldwide for more than 40 years.

13681 Newport Ave., Suite 8, Tustin, CA 92780

714-669-5400

store1980@theupsstore.com

https://locations.theupsstore.com/ca/tustin

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.