91 Improvements @91improvements
OCTA and Caltrans are partnering to improve highway lanes, ramps, bridges, sidewalks, bike lanes, & more along the 91 Freeway. Follow for updates! octa.net/91improvements Orange County, CA Joined October 2009-
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🚧 WB SR-91 Closure 🚧 From 9pm Fri, Sept 26 to 5am Sat, Sept 27, WB SR-91 will be CLOSED between Imperial Hwy & SR-55/Tustin Ave for restriping & barrier placement. Use posted detours. Schedule subject to change. #TrafficAlert #SR91
🚦 As summer winds down, let’s remember: traffic safety is always in season. Stay alert in construction zones and help keep both drivers and crews safe.
Crews are anticipated to excavate the area near the westbound loop on-ramp. Excavation activities involve removing soil and rocks to prepare for the next phase of pile diving. This work is anticipated to occur nightly as early as 10 p.m. to 5 a.m. on Sept. 22 and Sept. 23.
Improvements on SR-91 are needed between SR-57 and SR-55 to reduce congestion caused by high traffic and limited space for merging. 🛣️
🦺 The Outreach Team visited the Lakeview Avenue interchange to witness the progress on the new Lakeview Avenue bridge and the soundwall along the WB SR-91. This work is being done to accommodate the addition of the SR-55 on-ramp that will be added at Lakeview Avenue.
Through early October, crews will continue pile driving to form the essential foundation work at the SR-91/Lakeview Avenue Interchange. Every step gets us closer to improved traffic flow. Learn more and sign up for weekly construction updates at octa.net/91Construction
Along the WB SR-91 on-ramp at Lakeview, crews are making progress on the new soundwall to accommodate for a new southbound SR-55 on-ramp coming in 2027. Swipe to see progress pictures!
Pile driving is anticipated to begin the week of Aug. 25 and continue in phases through early October, on weekdays. Crews may be on the worksite as early as 6 a.m. and are anticipated to perform pile driving from 7 a.m. to 4 p.m. For updates, visit octa.net/91Construction.
Pile driving is anticipated to begin the week of Aug. 25 and continue in phases through early October, on weekdays. Crews may be on the worksite as early as 6 a.m. and are anticipated to perform pile driving from 7 a.m. to 4 p.m. For updates, visit octa.net/91Construction.
💻 Virtual Cone Zone Conversations Want to learn more or ask questions? Join the outreach team for a live virtual info session: 📅 Thursday, Aug. 21 🕛 Noon to 1 p.m. 📍 Zoom 🔗 REGISTER HERE - bit.ly/ConeZoneThursd…
🚧 Did you know? Construction on SR-91 has begun and is anticipated to be complete by 2030. Segment 1: Lakeview to SR-55 (2025–2027) Segment 2: SR-55 to SR-57 (2026–2030) Segment 3: La Palma to State College (2025–2029) *Schedule subject to change.
Keep up with SR-91 project updates, closures, and detours 🚧 -Alerts: octa.net/91Improvements -Social: @91improvements (Facebook & Instagram) -Contact: [email protected] | 888-280-7966 -Nextdoor: Stay updated by ZIP code!
Construction is underway - as part of Segment 1, a new on-ramp will be added at Lakeview Avenue to SR-55. To accommodate the new SR-55 on-ramp, crews will realign the straight westbound on-ramp at Lakeview and rebuild the bridge for safer travel and to ease congestion.
Signing up for SR-91 construction updates is easy! Visit octa.net/91improvements → drop-down → Stay Connected. Fill info, check lists, and sign up.
Steel bars are placed inside the wall before concrete is poured - like bones, they give it strength to withstand pressure and last.
Kids can explore the SR-91 Improvements Project with our activity book, featuring coloring pages and activities. Get yours at bit.ly/91ActivityBook.
The visible part of this wall does more than you think, it rises from the footing to hold soil and water.
Nighttime construction noise will be monitored to meet Caltrans and city regulations. Residents may hear back-up alarms, which are required by state law for worker safety.
OC Fair runs to August 17! Use easy freeway access or the OC Fair Express bus from 6 locations. Info: octa.net/ocfairexpress
Summer events are on! ☀️ Check trail closures & safety updates before you go - ocparks.com.

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