This Memorial Day, the SR-91 team honors those who have made the ultimate sacrifice for our freedom. Thank you for your service! In observance of the holiday, there will be no closures scheduled Friday, May 23 through Monday, May 26. Construction activities will resume Tuesday, May 27.
Closures and Detours Map
For a full list of weekly closures and detours, and the most up-to-date project information, please click on the project Google Map below.
Bookmark the closures and detours map above for quick access to real-time construction information. Click on the construction icons to view activities and closure and detour information. Plan for additional travel time through the area. Detour signs will be in place to assist motorists.
Join Us for Cone Zone Conversations
Join the Outreach Team for Cone Zone Conversations where you can ask questions and learn more about upcoming construction activities.
Visit bit.ly/LakeviewRenderingto view the future SR-91/Lakeview Avenue Interchange improvements rendering.
Upcoming Long-Term Closure! SR-91 Eastbound Loop On-Ramp Expected to Close May 30
Crews are expected to demolish and reconstruct a retaining wall on eastbound (EB) SR-91 beneath the existing Lakeview bridge and construct an abutment for the new bridge. This work will require a long-term closure of the EB SR-91 loop on-ramp from southbound (SB) Lakeview Avenue expected to begin as early as Friday, May 30 for approximately two years.
Motorists traveling SB on Lakeview Avenue will be directed to access the EB SR-91 using Imperial Highway.
Freeway and Ramp Closures
Nighttime lane closures on EB and westbound (WB) SR-91 will occur regularly throughout construction. At least one lane will be open to traffic at all times, unless otherwise specified.
91 Express Lanes Closures
The following nighttime closures of the 91 Express Lanes will occur between SR-55/Tustin Avenue and the Orange County/Riverside County line to facilitate striping, k-rail placement and overhead sign removal. Drivers will be directed to use the regular lanes and exit or re-enter the 91 Express Lanes at the county line.
The EB SR-91 Express Lanes are anticipated to close as early as 11 p.m. Friday, May 16 to 7 a.m. Saturday, May 17
Sound Wall Activities
Crews will continue to demolish the sound wall along the WB SR-91 on-ramp at Lakeview Avenue during the week of May 19.
Crews have also begun initial steps to reconstruct a new sound wall, which will accommodate a new on-ramp from Lakeview directly to SB SR-55. Sound wall reconstruction will be ongoing for approximately 12 months.
Crews are expected to construct the foundation of the new sound wall along WB SR-91. This work will require the installation of cast-in-drilled-hole (CIDH) piles and steel rebar cages, as well as concrete pours. This work is expected to occur 7 a.m. to 5 p.m. weekdays, beginning as early as Tuesday, May 27 and continuing through early July.
This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
About the Project
Overview
The SR-91 (SR-57 to SR-55) Improvement Project will improve 6.6 miles of State Route 91 (SR-91) through Anaheim, Fullerton, Orange, Placentia and Yorba Linda. The project will improve mobility throughout the corridor, reduce weaving and merging between ramps, and improve on- and off-ramps. The project will reconstruct the La Palma Avenue, Glassell Street, Tustin Avenue and Lakeview Avenue bridges and interchanges with standard lanes, shoulders and sidewalks in each direction.
Project Map
Project Schedule
Please be advised the schedule is subject to change.
Frequently Asked Questions
Click on a button below to find answers to common questions about the SR-91 (SR-57 to SR-55) Improvement Project.
If your community or organization is interested in receiving a presentation or briefing about this project, please email our Outreach Team at91Project@octa.net.
