Haga clic aquí para ver esta informacíon en español.
Independence Day Holiday Notice
In observance of the Independence Day holiday, no construction activities or scheduled lane, ramp, or roadway closures are planned from Thursday, July 2 through
Sunday, July 5.
Regular construction operations and nighttime closures are expected to resume following the holiday weekend.
June: National Safety Month
Speed limits are reduced in work zones to help protect everyone on the roadway. When traveling through active construction areas, slow down, stay alert, and follow posted speed limits. Taking a few extra moments to drive safely can help reduce the risk of crashes and keep traffic moving.
Upcoming 55-Hour Closure
Crews will perform construction activities on the westbound (WB) SR-91 on-ramp that will require continuous 55-hour closures starting as early as 9 p.m., Friday, July 10, through 4 a.m., Monday, July 13.
Closures:
WB SR-91 Lakeview Avenue off-ramp
One outside lane of WB SR-91
Detours:
Exit WB SR-91 at Imperial Highway off-ramp
Turn right onto Imperial Highway
Turn left onto La Palma Avenue and continue to access Lakeview Avenue
Exit WB SR-91 at Imperial Highway off-ramp
Turn left onto Imperial Highway
Turn left onto Santa Ana Canyon Road and continue to Lakeview Avenue
Segment 1: Lakeview to SR-55
Crews are anticipated to continue construction activities that will require a full Lakeview Avenue street closure between Santa Ana Canyon Road and the WB SR-91 off-ramp at Lakeview nightly, as early as Friday, June 26 and Monday, June 29 through Wednesday, July 1 (into Thursday morning).
Intermittent nightly closures on Lakeview Avenue are expected to continue through June.
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.
This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
Temporary Lakeview Configuration
Motorists traveling both northbound (NB) and southbound (SB) on Lakeview Avenue will now use a new signalized intersection to access the newly realigned WB SR-91 straight on-ramp, and the WB SR-91 loop on-ramp at Lakeview Avenue has been permanently closed.
In this configuration, the eastern side of Lakeview Avenue is fully closed to pedestrians through August 2026. The western side is accessible to pedestrians.
Crews are hard at work. You may notice more traffic than usual. Please allow for extra time or utilize alternative routes.
Intermittent night work will continue as crews advance to the next phase of bridge construction. The new half of the bridge is expected to be open later this summer, stay tuned for additional information about lane configurations and demolition of the remaining portions of the old bridge.
Crews will continue night work activities during the week of June 29 at Lakeview Avenue.
Photos of the concrete deck pour, forming the back wall and installing rebar
on the new Lakeview Avenue bridge.
This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
Crews continue work on a sound wall along the WB SR-91 on-ramp and a retaining wall along the EB SR-91 on-ramp. Daily construction activities will start as early as 7 a.m. to 4 p.m. The new wall is anticipated to be complete by mid-2026.
Crews placing and grouting the blocks that form the top of the sound wall along the WB SR-91 on-ramp and placing structural backfill for the retaining wall along the EB SR-91 on-ramp.
This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
Segment 2: SR-55 to SR-57
Construction on Segment 2 of the SR-91 Improvement Project is expected to begin in late 2026.
Segment 3: SR-57 Interchange
State College Boulevard Construction Activities
Crews will continue striping activities and installation of temporary lighting and traffic control systems throughout the Segment 3 construction zone. Work will occur during both daytime and nighttime hours, with nighttime operations expected throughout much of the week. State College Boulevard will remain open to traffic during most operations; however, intermittent overnight lane reductions, ramp closures, and connector closures will be required to safely accommodate ongoing construction activities.
The SR-91 bridge over State College Boulevard is being widened to improve traffic flow and safety. Initial demolition of the existing bridge has been completed, and crews are now advancing foundation and bridge construction activities, including shoring and excavation. Motorists should continue to expect intermittent nighttime closures of State College Boulevard, on- and off-ramps, and outside SR-91 freeway lanes as work progresses.
Please note that construction schedules may be adjusted to accommodate traffic management needs associated with the FIFA World Cup, as well as inclement weather or unforeseen operational issues.
For the latest construction information, traffic impacts, and closure updates, visit the project's Google Map and monitor future construction alerts.
Crews completed concrete removal and partial demolition activities along
State College Boulevard as part of the bridge widening project.
Please note that construction schedules may be adjusted to accommodate traffic management needs associated with the FIFA World Cup, as well as inclement weather or unforeseen operational issues.
Street Closures:
Lakeview Avenue:
As early as Friday, June 26 from 9 p.m. to 5 a.m., into the next morning
As early as Monday, June 29 through Wednesday, July 1, from 10 p.m. to 5 a.m. nightly, into the next morning
Freeway and Ramp Closures:
Nighttime lane closures on EB and WB SR-91 and NB and SB SR-57 are anticipated to occur regularly throughout construction. At least one lane will be open to traffic at all times, unless otherwise specified.
EB SR-91 Off-Ramp at Lakeview:
As early as Friday, June 26 from 9 p.m. to 5 a.m. into the next morning
EB SR-91 On-Ramp at Lakeview:
As early as Friday, June 26 from 9 p.m. to 5 a.m., into the next morning
As early as Monday, June 29 through Wednesday, July 1, from 10 p.m. to 5 a.m. nightly, into the next morning
WB SR-91 Off-Ramp at Lakeview:
As early as Friday, June 26 from 9 p.m. to 5 a.m. into the next morning
As early as Monday, June 29 through Wednesday, July 1, from 8 p.m. to 5 a.m. nightly, into the next morning
WB SR-91 Loop On-Ramp at Lakeview:
Permanently closed
EB SR-91 Loop On-Ramp at Lakeview (Two-Year Closure):
The two-year closure started on July 7, 2025
WB SR-91 to NB SR-57 Connector:
As early as Friday, June 26 from 10 p.m. to 6 a.m. into the next morning
As early as Monday, June 29 from 10 p.m. to 5 a.m. into the next morning
WB SR-91 to SB SR-57 Connector:
As early as Friday, June 26 from 10 p.m. to 6 a.m. into the next morning
As early as Monday, June 29 from 10 p.m. to 5 a.m. into the next morning
WB SR-91 Off-Ramp at State College Boulevard:
As early as Monday, June 29 from 10 p.m. to 5 a.m. into the next morning
As early as Tuesday, June 30 from 10 p.m. to 5 a.m. into the next morning
As early as Wednesday, July 1 from 10 p.m. to 5 a.m. into the next morning
WB SR-91 On-Ramp at State College Boulevard:
As early as Monday, June 29 from 10 p.m. to 5 a.m. into the next morning
As early as Tuesday, June 30 from 10 p.m. to 5 a.m. into the next morning
As early as Wednesday, July 1 from 10 p.m. to 5 a.m. into the next morning
EB SR-91 Off-Ramp at State College Boulevard:
As early as Tuesday, June 30 from 10 p.m. to 5 a.m. into the next morning
The schedule is subject to change due to inclement weather or unforeseen operational issues.
For a full list of weekly closures and detours, and the most up-to-date project information, please click on the projectGoogle Mapbelow.
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.
About the Project
91 Connect Business Program
The "91 Connect: Shop Local, Support Local" program supports businesses along the SR-91 Improvement Project corridor by promoting visibility and minimizing construction impacts through proactive outreach. Business spotlights on the project website, social media, and construction alerts, are all aimed to encourage the community to shop local and raise awareness of local businesses during construction. Click here to learn more.
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, Kraemer Boulevard/Glassell Street, Tustin Avenue and Lakeview Avenue bridges and interchanges with standard lanes, shoulders and sidewalks in each direction. Visit our website for more information on segment and schedule details,octa.net/91improvements.
