55 Freeway Project

Work is underway to reconstruct the southbound (SB) SR-55 Dyer Road loop off-ramp, which requires an extended closure of the ramp as well as the inside lane on the SB Dyer Road on-ramp.

The off-ramp and inside lane closed for reconstruction yesterday (Oct. 13) and are expected to reopen to motorists by Friday, Oct. 23.

This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

Crews are expected to perform pavement grinding and paving along the outside shoulder on northbound (NB) SR-55 and along inside and outside lanes of southbound (SB) SR-55 between I-405 and I-5, which will require nightly lane closures on NB and SB SR-55 from 9 p.m. to 5 a.m. nightly, Tuesday, Oct. 13 through Friday, Oct. 16 (into Saturday morning).

🌧️ The first rain after a long dry spell can change road conditions quickly.

When rain hits a road surface that has accumulated oil, dust and other residue, it can become slick, especially during the first part of a rainfall.

If you're driving through a construction zone, give yourself extra space, slow down, avoid sudden maneuvers and follow posted signs and lane changes.

Share with a fellow commuter. 🌧️

🌎 The Irvine Global Village Festival returns Saturday, Oct. 10, from 10 a.m. to 6 p.m. at the Great Park. Celebrate 25 years of culture, music, food and traditions from around the world.

See details: https://cityofirvine.gov/irvine-global-village-festival

Be in the know before you go! As construction progresses along SR-55, be sure to visit our Closure and Detour Google Map at octa.net/55Construction to stay up-to-date on upcoming ramp and lane closures. 🚘

Crews are expected to perform pavement grinding along the outside shoulder on northbound (NB) SR-55 between I-405 and I-5, which will require closing the three outside lanes on NB SR-55 from 9 p.m. to 5 a.m. nightly, Tuesday, Oct. 6 through Friday, Oct. 9 (into Saturday morning).

City of Irvine City Hall City of Santa Ana - Municipal Government City of Tustin - Municipal Government

WHAT:
Crews are expected to reconstruct the southbound (SB) SR-55 Dyer Road loop off-ramp, which will require an extended closure of the ramp as well as the inside lane on the SB Dyer Road on-ramp.

WHEN:
The off-ramp and inside lane are expected to close as soon as 9 p.m., Tuesday, Oct. 13 and reopen to motorists by 9 p.m., Friday, Oct. 23.

This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

🔶🔶🔶

QUÉ:
Los equipos reconstruirán la rampa de salida en bucle de la SR-55 en dirección sur (SB) hacia Dyer Road; esto requerirá el cierre extendido de dicha rampa, así como del carril interior de la rampa de entrada a la SR-55 desde Dyer Road (en dirección sur).

CUÁNDO:
Se prevé que la rampa de salida y el carril interior cierren a partir de las 9 p.m. del martes 13 de octubre y vuelvan a abrirse al tráfico a las 9 p.m. del viernes 23 de octubre.

Este trabajo puede ser ruidoso. El horario está sujeto a cambios debido a condiciones meteorológicas adversas o problemas operativos imprevistos.

Paving along the outside shoulder of both directions on SR-55 between I-405 and I-5 is underway and expected to be completed soon as crews prepare to shift traffic towards the outside to demolish and reconstruct the center median in late 2026. Be sure to follow on Instagram, X, and Facebook for the latest updates!

City of Santa Ana - Municipal Government City of Irvine City Hall City of Tustin - Municipal Government

In mid-October, crews are expected to reconstruct the southbound Dyer Road loop off-ramp, which will require an extended closure of the ramp. Additional information will be provided in future communications.

City of Irvine City Hall City of Tustin - Municipal Government City of Santa Ana - Municipal Government

⚠️ Crews are expected to perform paving work along the northbound SR-55 McFadden Avenue off-ramp, which will require closing the ramp from 9 p.m. to 5 a.m. nightly, Wednesday, Sept. 23 and Thursday, Sept. 24 (into Friday morning).

City of Santa Ana - Municipal Government City of Irvine City Hall City of Tustin - Municipal Government