featured graphic for I-405 Improvement Project after COVID-19. Logo courtesy of OCTA.

I-405 Improvement Project construction alert: Week of Monday, Aug. 8

For more information about this project, please contact the 405 Community Outreach Team at [email protected] 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!

Click to see closures and detours on the interactive map.

CHECK OUT OUR PROGRESS!

COMING SOON! I-405/SR-73 Express Lanes Concrete Pour

In June 2022, crews poured concrete for the new I-405/SR-73 Express Lanes Connector. Crews will continue pouring concrete for the connector in August and in September.

The next concrete pours are scheduled for Friday, Aug. 19, and again Friday, Aug. 26. This work will require a southbound I-405 closure between the Fairview Road bridge and the SR-73 connector for approximately 12 hours each night.

The 405 Community Outreach Team will provide updates in future alerts.

COMING SOON! New Portion of the Westminster Boulevard Bridge Opening

Crews began the second phase of construction of the Westminster bridge in 2021. When the new portion of the bridge opens this summer, it will have new vehicle lanes and sidewalks. Additionally, crews are constructing new traffic signals for the Westminster/Springdale Street and the Westminster/Willow Lane intersections.

The I-405 Improvement Project is excited to deliver an improved bridge to your community!

Please note that the northbound I-405 off-ramp to Willow will be permanently closed as part of the project improvements, and crews will continue constructing traffic signals, striping new bike lanes and conducting drainage work in the coming months.

To open the new portion of the bridge, the community should expect a full bridge closure for one night so crews can restripe lanes.

The 405 Community Outreach Team will provide updates in future alerts.

Stay tuned for more progress!

REMINDER! Southbound I-405 Closure for Brookurst Street Bridge Falsework

Crews will continue installing the falsework for the Brookhurst bridge over SB I-405. This work will require SB I-405 closures between the SB I-405 off-ramp to Magnolia Street and the SB I-405 on-ramp from Talbert Avenue.

SB I-405 closures are scheduled for 11 p.m. Friday, Aug. 5, to 6 a.m. Saturday, Aug. 6, and they are also anticipated 11 p.m. to 5 a.m.

  • Wednesday, Aug. 10; and again on
  • Thursday, Aug. 11.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.

REMINDER! Southbound (SB) I-405 Closure for the New I-405/SR-73 Express Lanes Connector

Crews continue to construct the new I-405/SR-73 Express Lanes Connector.

This requires SB I-405 closures between the SB I-405 off-ramp to Harbor Boulevard and the SB I-405 on-ramp from Fairview Road.

SB I-405 closures are anticipated:

  • 11 p.m. Friday, Aug. 5, to 6 a.m. Saturday, Aug. 6; and again
  • 11p.m. Friday, Aug. 12, to 6 a.m. Saturday, Aug. 13.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.

REMINDER! Southbound (SB) I-405 Closure for Restriping

Crews will restripe lanes on SB I-405 in Huntington Beach, between Edinger Avenue and Magnolia Street.

This work will require a SB I-405 closure between the SB I-405 off-ramp to Beach Boulevard/Center Avenue and the SB I-405 on-ramp from Magnolia.

The closure is scheduled for 11 p.m. Saturday, Aug. 6, to 6 a.m. Sunday, Aug. 7.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.

NEW! Southbound (SB) and Northbound (NB) Closures for Bolsa Avenue Bridge Falsework

Crews will work on the falsework for the Bolsa Avenue bridge over I-405.

This work will require a SB I-405 closure between the SB I-405 off-ramp to Springdale Street and and the SB I-405 on-ramp from Bolsa.

The SB I-405 closure is set for 11 p.m. Monday, Aug. 8, to 5 a.m. Tuesday, Aug. 9.

This work will also require a NB I-405 closure between the NB I-405 loop off-ramp to Bolsa and the NB I-405 straight on-ramp from Westminster Boulevard.

The NB I-405 closure is set for 11 p.m. Tuesday, Aug. 9, to 5 a.m. Wednesday, Aug. 10.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.

NEW! Full Freeway Closure for Restriping

Crews will restripe lanes, on I-405, between Edinger Avenue and Magnolia Street.

This work will require a northbound (NB) I-405 closure between the NB I-405 off-ramp to Warner Avenue and the NB I-405 loop on-ramp from Magnolia Street and a southbound (SB) I-405 closure between the SB I-405 off-ramp to Center Avenue/Beach Boulevard and the SB I-405 on-ramp from Talbert Avenue.

NB and SB I-405 will be closed as early as 11 p.m. Saturday, Aug. 13, to 6 a.m. Sunday, Aug. 14.

The 405 Community Outreach Team will provide updates in future alerts.

Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.

COMING SOON! Northbound (NB) Loop On-Ramp from Harbor Boulevard to Close for Approximately One Month

Crews will close the NB I-405 loop on-ramp from Harbor Boulevard for approximately one month as part of project improvements.

The ramp closure is anticipated for late August.

COMING SOON! Southbound (SB) I-405 Off-Ramp to Seal Beach Boulevard to Close for Approximately One Month

Crews will close the SB I-405 off-ramp to Seal Beach Boulevard for approximately one month as part of project improvements.

The ramp closure is anticipated for late summer 2022.

REMINDER! Southbound (SB) I-405 Warner Avenue On- and Off-Ramps Closed for Approximately Six Weeks

Crews closed the SB I-405 straight on-ramp from Warner and the SB I-405 loop off-ramp to Warner as part of project improvements.

The ramps closed Thursday, July 14, and are anticipated to open in late August 2022.

REMINDER! Northbound (NB) I-405/Westbound (WB) SR-22 On-Ramp from Valley View Street Closed for Approximately Two Months

Crews closed the NB I-405/WB SR-22 on-ramp from Valley View Street as part of project improvements..

The ramp closed Monday, June 6, and is anticipated to reopen August 2022.

REMINDER! Southbound (SB) I-405/Eastbound (EB) SR-22 Connector Extended Lane Reduction

Crews reduced the SB I-405/EB SR-22 connector to two lanes for pavement activity.

The lane reductions began Friday, June 10, and will be in place through August 2022.

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.

Construction Activities

Montecito Channel

UPDATE! Crews will relocate several utilities to continue widening the drainage channel adjacent to homes in the College Park West community.

Utility line relocation is anticipated to begin as early as Monday, Aug. 8, 7 a.m. to 4 p.m. on weekdays.

Block wall installation is anticipated to begin in fall 2022.

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.

North Gate Road

REMINDER! Crews closed North Gate Road to conduct sewer work.

Vehicles, bicyclists and pedestrians will be detoured to Golden Rain Road to enter and exit Leisure World.

The closure began Tuesday, July 5, and is anticipated to open after approximately three months.

Sewer work is anticipated 7 a.m. to 4 p.m. on weekdays, for approximately three months. 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.

Almond Avenue

UPDATE! Crews will continue constructing the sound walls along northbound (NB) I-405, adjacent to Almond Avenue.

Block wall installation is anticipated to begin in late August.

Construction activities will continue 7 a.m. to 4 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.

Springdale Street

REMINDER! Crews will continue constructing the new traffic signal at the Westminster Boulevard/Springdale Street intersection as part of the bridges’ reconstruction.

Activities include permanent pole foundation work, as well as electrical work. After the temporary signal is complete, crews will begin construction of the permanent traffic signal.

Construction of the permanent signal is ongoing, 7 a.m. to 4 p.m. on weekdays and Saturdays, through August 2022.

This work will also include intermittent nighttime lane reductions on Springdale and Westminster.

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.

Bolsa Avenue

UPDATE! Crews began block wall installation for the walls along SB I-405, adjacent to Vermont Street.

Activities will continue 7 a.m. to 4 p.m., on weekdays, for approximately one more week.

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! The city of Fountain Valley is performing sewer replacement work along Magnolia Street at Warner Avenue, which requires lane reductions. The sewer project is anticipated to be complete in early September.

The duration of this work may change depending on site conditions. Please be advised that this work may be loud. Dates and times are subject to change due to unforeseen operational factors or inclement weather.

This article was released by the Orange County Transportation Authority.