To accommodate bridge reconstruction activities, crews have temporarily closed the outside left-turn lane on eastbound Dyer Road and the inside left-turn lane on southbound Grand Avenue. These closures began on Tuesday, June 3 and will continue for approximately one month.
Upcoming Street Closures
Dyer Road
To accommodate bridge reconstruction activities, Dyer Road underneath the freeway in each direction is expected to close from 9 p.m. to 5 a.m. nightly, Monday, June 16 through Friday, June 20.
Edinger Avenue
Crews are scheduled to perform drilling operations at the Edinger Avenue bridge, which will require closing Edinger underneath the freeway in each direction from
9 p.m. to 5 a.m., nightly, Monday, June 16 through Friday, June 20.
Northbound SR-55 Dyer Road Straight On-Ramp Open to Motorists!
The northbound SR-55 Dyer Road straight on-ramp is open to motorists following a
10-day closure! We appreciate the public’s patience to allow contractors to safely reconstruct the ramp.
In the Community
Join the City of Tustin on Thursday, June 19 from 5 to 8:30 p.m. at their Sunset Market! This event is free to the public where you can enjoy the farmer's market, vendors, live music, and food trucks. For more information, visit tustinca.org/sunsetmarket.
Closures and Detours Map
Bookmark the closures and detours map for quick access to real-time construction information. Click on the construction icons to view activities and closures.
About the Project
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.
