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WHAT:

Crews will be removing and pouring concrete to reconstruct the northbound SR-55 MacArthur Boulevard straight on-ramp, which will require an extended closure of the ramp.

WHEN:

The on-ramp is expected to close as soon as 5 a.m., Friday, Feb. 28 and reopen to motorists by 5 a.m., Monday, March 10.

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

Crews continue to conduct efforts to keep the project corridor clean, including the removal of vegetation and weeds, as well as ensure local streets are maintained for pedestrians and motorists. In addition, regular site inspections and sweeps along the mainline are performed.

Please report graffiti and trash along the corridor to the Outreach Team at

888-371-2555 or email SR55Info@octa.net.

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.