For more information about this project, please contact the 405 Community Outreach Team at 405project@octa.net or 888-400-8994, or visit octa.net/405improvement.

Si prefiere recibir información en español, por favor llame este numero 888-400-8994.

Nếu quý vị muốn nhận được thông tin này bằng tiếng Việt, xin vui lòng liên lạc với cô Lý Gia
888-662-6569.
To view and print a detailed list of closures and detours CLICK HERE!
REMINDER! 12-Hour Closures on Southbound (SB)
I-405 to Pour Concrete for New I-405/SR-73 Express Lanes Connector
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Crews will close SB I-405 in Costa Mesa, to pour concrete for the new I-405/SR-73 Express Lanes Connector. The SB I-405 and SR-73 on-ramps from Fairview Road will also be closed.

The closure is anticipated as early as 9 p.m. TONIGHT, Dec. 9, to 9 a.m. Saturday, Dec. 10.

Northbound I-405 and the Fairview bridge will remain open.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
REMINDER! Southbound (SB) Euclid Street Closures for Bridge Work
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Southbound (SB) Euclid Street will close between Condor Avenue and the SB I-405 on-ramp from Euclid for bridge work.

The nightly SB I-405 closures are anticipated as early as 10 p.m. to 5 a.m. TONIGHT, Dec. 9, and Monday, Dec. 12, to Thursday, Dec. 15.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
NEW! Northbound (NB) I-405 Closures for Newland Street Bridge Falsework Installation
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Northbound (NB) I-405 will close between the NB I-405 off-ramp to Magnolia Street and the NB I-405 loop on-ramp from Beach Boulevard to install falsework for the Newland Street bridge.

The nightly NB I-405 closures are anticipated as early as 11 p.m. to 5 a.m. Monday, Dec. 12 to Thursday, Dec. 15, and 11 p.m. to 6 a.m. Friday, Dec. 16.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
UPDATE! Southbound (SB) I-405 Closure for Warner Avenue Bridge Falsework Removal
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Southbound (SB) I-405 will close between the SB I-405 off-ramp to Magnolia Street and the SB I-405 on-ramp from Warner Avenue to remove falsework from the Warner bridge.

The nightly SB I-405 closures are anticipated as early as 11 p.m. to 5 a.m. Monday, Dec. 12 to Thursday, Dec. 15, and 11 p.m. to 6 a.m. Friday, Dec. 16.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

Este trabajo puede ser ruidoso. El horario está sujeto a cambios debido a las inclemencias del tiempo o problemas operativos imprevistos.

Xin lưu ý là công việc này có thể gây nên những tiếng động ồn ào. Lịch trình có thể thay đổi vì thời tiết xấu hoặc những yếu tố công tác không thể dự đoán.
UPDATE! Crews will continue construction activities as part of the drainage channel widening.

Activities include:
  • Soil backfill, concrete paving, and installing rock and stone along the channel;
  • Final paving of the SB I-405/WB SR-22 connector; and
  • Sound wall reconstruction.

Soil backfill, concrete paving, and rock/stone installation is ongoing and anticipated to continue through December.

Final paving of the SB I-405/WB SR-22 connector is ongoing and anticipated to continue through early 2023.

Sound wall reconstruction is anticipated for early 2023.

Crews may access the work zone intermittently along College Park Drive and from the WB SR-22 connector to mobilize equipment as early as 6 a.m., and some activities may occur at night from 9 p.m. to 6 a.m. as needed.

Please be advised that this work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
UPDATE! Construction of the sound walls along North Gate Road is now complete!

It is anticipated that crews will finish paving along the northwest wall and construct the monument for the Seal Beach Boulevard bridge this month.

Additionally, crews will begin drilling operations for the foundation of a freeway sign near the southbound I-405 loop off-ramp to Seal Beach Boulevard.

Lastly, crews will begin installation of water meter, drainage ditch, and electrical services in early-to-mid 2023. It is anticipated that this work will take place behind the current work zone.

Crews may mobilize equipment as early as 6 a.m., and some activities may occur from 9 p.m. to 6 a.m. as needed.

Please be advised that this work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
REMINDER! Crews will continue reconstructing the sidewalk on the southwest corner of Westminster Boulevard/Springdale Street. Activities include curb, gutter and electrical work.

Pedestrian access will be closed on the southwest corner during construction and a detour will be in place.

Construction activities are anticipated to continue 7 a.m. to 4 p.m. for approximately three more weeks, on weekdays and Saturdays as needed.

Crews may mobilize equipment as early as 6 a.m., and some activities may occur from 9 p.m. to 6 a.m. as needed.

Please be advised that this work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
REMINDER! Crews are landscaping and installing irrigation on the McFadden Avenue bridge. This work will require intermittent lane reductions, between Gothard Street and Sugar Drive, for approximately six months.

Activities are anticipated to continue 9 a.m. to 3:30 p.m., on weekdays.

Crews may mobilize equipment as early as 6 a.m., and some activities may occur from 9 p.m. to 6 a.m. as needed.

Please be advised that this work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
REMINDER! Crews are installing the permanent traffic signals at the Beach Boulevard and Edinger Avenue intersection. Activities include electrical work, installing traffic signals, as well as removing and restoring asphalt and concrete.

Construction activities are anticipated to continue, 7 a.m. to 4 p.m. for approximately three more weeks, on weekdays and Saturdays as needed.

This work will require extended outside lane closures on eastbound Edinger at Beach, as well as on NB Beach at Edinger. The closures will be in place for the full duration.

Crews may mobilize equipment as early as 6 a.m., and some activities may occur from 9 p.m. to 6 a.m. as needed.

Please be advised that this work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
REMINDER! Crews will pour concrete for the Brookhurst Street bridge over I-405.

Activities are anticipated 5 a.m. to 5 p.m. Wednesday, Dec. 14. No closures are needed for this activity, as crews will pour concrete from the existing work zone.

Crews may mobilize equipment as early as 6 a.m., and some activities may occur from 9 p.m. to 6 a.m. as needed.

Please be advised that this work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
Now, more than ever, local businesses need your love and support! Orange County Transportation Authority (OCTA) is partnering with the cities of Fountain Valley, Westminster and Huntington Beach and their Chambers of Commerce for the 405 Forward program. We want to highlight businesses along the I-405 Improvement Project, and we need your help!
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