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Crews are expected to pour concrete at the Dyer Road bridge, which will require closing eastbound and westbound Dyer underneath the freeway from 9 p.m., Friday, April 10 to

5 a.m., Saturday, April 11. In addition, northbound Grand Avenue will be closed during this time. Business access will be maintained.

Northbound Grand Avenue Detour Map

Dyer Road Detour Map

WHAT:

Crews are expected to remove falsework or temporary support structures along the east side of the SR-55 freeway bridge over the railroad. This work will require nighttime closures of the northbound McFadden Avenue off-ramp, Edinger Avenue on-ramp, and two outside lanes between these ramps.

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

WHEN:

9 p.m. to 6 a.m. nightly, Friday, April 17 through Sunday, April 19 and Friday, April 24 through Sunday, April 26.

Visit www.octa.net/55Construction to view updates regarding construction activities and closures. 

Crews are reconstructing the northbound SR-55 McFadden Avenue on-ramp, which requires an extended closure of the ramp. The on-ramp is expected to reopen to motorists by 5 a.m., Friday, April 17.

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

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.