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! Slater Avenue Full Bridge Closure TONIGHT to Continue
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The Slater Avenue bridge will close between Dolphin Street and Starfish Avenue to repair joint seal assemblies.

The bridge closure is anticipated to continue as early as 10 p.m. to 5 a.m. Friday, March 17.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
NEW! I-405 and Brookhurst Street Bridge Closures for Falsework Removal
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The Brookhurst Street bridge over I-405 will close so crews can remove a super beam from the falsework.

The bridge closures are anticipated as early as 10 p.m. to 5 a.m. Monday, March 20, and Wednesday, March 22.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
Click image to enlarge.
Northbound (NB) I-405 will close between the NB I-405 off-ramp to Brookhurst Street and the NB I-405 on-ramp from Warner Avenue so crews can remove a super beam from the Brookhurst Street bridge falsework.

The NB closures are anticipated as early as 11 p.m. to 5 a.m. Monday, March 20, and Tuesday, March 21.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
Click image to enlarge.
Southbound (SB) I-405 will close between the SB I-405 off-ramp to Brookhurst Street and the SB I-405 on-ramp from Talbert Avenue so crews can remove a super beam from the Brookhurst Street bridge falsework.

The SB closures are anticipated as early as 11 p.m. to 5 a.m. Wednesday, March 22, and Thursday, March 23.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
NEW! Northbound (NB) I-405 Closures for Overhead Sign Installation
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Northbound (NB) I-405 will close between the NB I-405 off-ramp to Seal Beach Boulevard and SB I-605/SR-22 Connector for overhead sign installation.

The NB I-405 closures are anticipated as early as 11 p.m. to 5 a.m. Tuesday, March 21, and Wednesday, March 22.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
NEW! Southbound (SB) I-405 Closures Bolsa Avenue to Install Joint Seal Assemblies
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Southbound (SB) I-405 will close between the SB I-405 off-ramp to Goldenwest Street and the SB I-405 on-ramp from Bolsa Avenue to install joint seal assemblies.

The SB closures are anticipated as early as 11 p.m. to 5 a.m. Monday, March 20, and Thursday, March 23.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
UPDATE! Northbound (NB) I-405 Closures to Remove Falsework from the SR-73/I-405 Express Lanes Connector
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Northbound (NB) I-405 will close nightly between the NB I-405 off-ramp to South Coast Drive and the NB I-405 on-ramp from Fairview Road to remove falsework from the SR-73/I-405 Express Lanes Connector.

The nightly NB I-405 closures are anticipated as early as 11 p.m. to 5 a.m. Monday, March 20 to Thursday, March 23, and 11 p.m. to 6 a.m. Friday, March 24.

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.
REMINDER! 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 anticipated to begin in mid-2023.

Final paving of the SB I-405/WB SR-22 connector is anticipated for early-to-mid 2023.

Sound wall reconstruction is also anticipated for early-to-mid 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.


Almond Avenue
REMINDER! Crews have begun removing K-rail along Almond Avenue, and curb restoration is anticipated to begin in the coming weeks.

Activities are expected to continue 7 a.m. to 4 p.m. on weekdays, through April.

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.


Springdale Street
NEW! Crews will pour concrete for the Springdale Street bridge over I-405. This work will require a closure of the southbound (SB) I-405 off-ramp/collector distributor road to Springdale/ Westminster Boulevard.

The concrete pours are anticipated as early as 5 a.m. to 5 p.m. Thursday, March 23, and Tuesday, March 28.

REMINDER! Crews have begun reconstructing the sidewalk on the northwest corner of Westminster Boulevard/Springdale Street. Activities include curb and gutter installation and utility relocation.

Pedestrian access will be closed at the crosswalk of the northwest corner during construction and a detour will be in place.

Construction activities began Wednesday, Feb. 8, and are expected to continue from 7 a.m. to 4 p.m. on weekdays and Saturdays, as needed, for approximately one more month.

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.


McFadden Avenue
REMINDER! Crews have begun reconstructing the cul-de-sac median on Sugar Drive/McFadden Avenue at Cedarwood Avenue.

Remaining activities include placing mulch.

Activities are expected to continue 7 a.m. to 4 p.m. Monday, March 20, and Tuesday, March 21.

Crews may place cones, and flaggers may be on-site to ensure safe access around the 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.


Beach Boulevard
UPDATE! Crews will continue installing the permanent traffic signals at the Beach Boulevard and Edinger Avenue intersection. Activities include electrical work, installing traffic signal poles, as well as restoring the roadway.

Construction activities are now expected to continue through May 2023, 7 a.m. to 4 p.m. on weekdays.

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

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.
Newland Street
UPDATE! Crews have begun pouring concrete for the Newland Street bridge over I-405.

The activity is anticipated to continue to 5 p.m. Friday, March 17.

Some activities may occur from 9 p.m. to 5 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.

Fairview Road
REMINDER! Crews are grading and will begin irrigation and landscaping activities adjacent to northbound (NB) Fairview Road. This work requires intermittent daytime lane reductions on NB Fairview between McCormack Lane and the southbound (SB) I-405 on-ramp.

Activities are ongoing 7 a.m. to 4 p.m. on weekdays and Saturdays, as needed.

Lane reductions are anticipated 9 a.m. to 4 p.m.

REMINDER! Crews have begun landscaping the center medians near the Fairview Road bridge. This work may require NB daytime lane reductions.

The intermittent lane reductions are ongoing 8:30 a.m. to 3:30 p.m. for approximately one more month.

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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