55 Freeway Project
SR-55 is one of the most heavily congested freeways in Southern California. The average daily traffic is 261,700 vehicles per day and traffic is expected to increase with future demand. SR-55 is a vital corridor connecting Orange County to Riverside and San Bernardino counties and is a major route for accessing key business centers, John Wayne Airport, major shopping destinations and beach cities.
05/23/2026
Memorial Day weekend is one of the busiest travel times of the year! Before you head out this holiday weekend:
🚧 Check traffic before leaving
🕒 Plan for extra travel time
📵 Stay alert and avoid distractions
↔️ Give yourself space between vehicles
🚦 Slow down in construction zones
Whether you’re heading to the beach, a BBQ, or out of town, a little preparation can go a long way toward a safer trip for everyone.
05/21/2026
Crews are expected to perform paving work along the project corridor, which will require closing the southbound I-5 to southbound SR-55 connector and southbound McFadden Avenue off-ramp from 9 p.m., Wednesday, May 20 to 5 a.m., Thursday, May 21.
City of Irvine City Hall City of Tustin - Municipal Government City of Santa Ana - Municipal Government
05/16/2026
Enjoy an afternoon of live music at Jazz in the Palm Court on Sunday, May 17 from 1 to 3 p.m. at the Great Park Palm Court Arts Complex. This free community concert features a rich mix of jazz styles showcasing the genre’s wide musical range.
Bring a folding chair or blanket, relax in the Palm Court, and soak in a laid-back afternoon of great music and community vibes.
City of Irvine City Hall
05/07/2026
Crews are expected to reconstruct the southbound SR-55 Dyer Road straight off-ramp, which will require an extended closure of the ramp. The off-ramp is expected to close as soon as 9 p.m., Tuesday, May 12 and reopen to motorists by 9 p.m., Friday, May 22.
This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
🔶🔶🔶
Se espera que las cuadrillas reconstruyan la rampa de salida recta de la SR-55 Dyer Road en dirección sur, lo que requerirá un cierre extendido de la rampa. Se espera que la rampa de salida cierre tan pronto como a las 9 p.m. del martes 12 de mayo y vuelva a abrir a los automovilistas a las 9 p.m. del viernes 22 de mayo.
Este trabajo puede ser ruidoso. El horario está sujeto a cambios debido a inclemencias del tiempo o problemas operativos imprevistos.
05/07/2026
Reminder! Crews will be performing concrete paving work to reconstruct the southbound SR-55 McFadden Avenue on-ramp. This will require an extended closure of the ramp beginning at 9 p.m., tonight, Wednesday, May 6 to 5 a.m., Friday, June 5.
City of Tustin - Municipal Government City of Irvine City Hall City of Santa Ana - Municipal Government
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