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

I-405 Improvement Project construction alert: Wednesday, February 9

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.

UPDATE! Full Freeway Closures for Brookhurst Street Bridge Partial Demolition

Crews will demolish the old portion of the bridge over two nights under full freeway closures.

Additional nighttime demolition will occur for several weeks under freeway lane closures, and some daytime demolition is also anticipated.

Northbound (NB) I-405 will be closed between the NB I-405 off-ramp to Euclid Street and the NB I-405 on-ramp from Brookhurst. Southbound (SB) I-405 will be closed between the SB I-405 off-ramp to Brookhurst and the SB I-405 on-ramp from Talbert Avenue.

  • NIGHT ONE: As early as 10:30 p.m. Saturday, Feb. 12, to 9 a.m. Sunday, Feb. 13.
  • NIGHT TWO: As early as 10:30 p.m. Saturday, Feb. 26, to 9 a.m. Sunday, Feb. 27.

Some freeway ramps will also be closed.

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

UPDATE! Southbound (SB) I-405 Closures for SB I-405/SR-73 Connector to Continue

Crews will close SB I-405 between the SB I-405 off-ramp to Harbor Boulevard and the SB I-405 on-ramp from Bristol Street to install the falsework for the SB I-405/SR-73 connector bridge.

The nightly SB I-405 closures are scheduled for 11 p.m. to 5 a.m. Monday, Feb. 14, to Thursday, Feb. 17.

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

UPDATE! Northbound Euclid Street Closure to Continue

Crews will close northbound (NB) Euclid between the southbound (SB) freeway ramps and the I-405 bridge to work on a drainage system.

The closure is scheduled for 10 p.m. Thursday, Feb. 10, to 5 a.m. Friday, Feb. 11.

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

NEW! Northbound I-405 Closure for Paving

Crews will close northbound (NB) I-405 between the NB I-405 off-ramp to Euclid Street and the NB I-405 on-ramp from Warner Avenue, so crews can continue paving the freeway.

NB I-405 will be closed 11 p.m. Thursday, Feb. 10, to 5 a.m. Friday, Feb. 11.

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

UPDATE! Southbound and Northbound Beach Boulevard Closures

Crews will close southbound (SB) and northbound (NB) Beach Boulevard between the freeway ramps for concrete work.

SB Beach will be closed 11 p.m. to 5 a.m.:

  • Monday, Feb. 14; and
  • Tuesday, Feb. 15.

NB Beach will be closed 11 p.m. to 5 a.m.:

  • Wednesday, Feb. 16; and
  • Thursday, Feb. 17.

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

COMING SOON! Daytime Ramp Closures for Westminster Boulevard Bridge Concrete Pour

Crews will pour concrete for the Westminster Boulevard bridge over I-405. This work will require daytime ramp closures and lane reductions on the bridge.

The closures are anticipated for as early as 6 a.m. Wednesday, Feb. 16.

The 405 Community Outreach Team will provide detailed schedule, closure and detour information in future alerts.

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

REMINDER! Southbound I-405 On-Ramp from Seal Beach Boulevard Closed for Approximately One Month

Crews closed the southbound (SB) I-405 on-ramp from Seal Beach Boulevard on Wednesday, Feb. 2, to accommodate the freeway widening.

The ramp is anticipated to reopen after approximately one month.

REMINDER! Southbound I-405 Off-Ramp to Goldenwest Street/Westminster Mall Road Closed for Approximately Six Weeks

Crews closed the southbound (SB) I-405 off-ramp to Goldenwest Street/Westminster Mall Road on Monday, Jan. 31, to accommodate the freeway widening.

The ramp is anticipated to reopen after approximately six weeks.

REMINDER! Northbound (NB) Brookhurst I-405 On- and Off-Ramps Closed for Approximately Two More Weeks

Crews closed the NB I-405 off-ramp to Brookhurst Street and the NB I-405 loop on-ramp from NB Brookhurst to accommodate the freeway widening.

The ramps were closed on Monday, Jan. 3, and are anticipated to reopen in approximately two more weeks.

REMINDER! Nightly Brookhurst Street Bridge and Ramp Closures for a Retaining Wall and Utility Work Continue

Crews will close the Brookhurst Street bridge and ramps nightly, for retaining wall and utility work.

The nightly closures are anticipated to continue, 10 p.m. to 5 a.m. for approximately three more weeks, on weeknights and weekends, as needed.

REMINDER! Westbound (WB) SR-22 On-Ramp from Old Ranch Parkway Closure to Extend for Approximately Three Months

Crews closed the Old Ranch Parkway on-ramp to WB SR-22 on April 13. The ramp will be closed for an additional three months due to unforeseen site conditions, to address complexities with traffic staging, and to accommodate the freeway widening.

The ramp is anticipated to reopen in spring 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

Almond Avenue

UPDATE! Crews are constructing the sound walls along northbound I-405, adjacent to Almond Avenue. The block portion of the wall is anticipated to start construction in spring 2022.

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.

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

Bolsa Chica Road

REMINDER! Crews will continue center median work on Bolsa Chica Road between Old Bolsa Chica and Duncannon Avenue.

Activities will include placing compaction base, paving the center median and removing k-rail.

This work will require reducing Bolsa Chica to one lane in each direction between Old Bolsa Chica Road and Loyola Avenue.

The center median work is scheduled for 9 p.m. to 6 a.m. Thursday, Feb. 10, and again on Friday, Feb. 11.

The lane reductions are scheduled for 10 p.m. to 5 a.m. Thursday, Feb. 10, and again on Friday, Feb. 11.

Some activities will occur during the day; 7 a.m. to 4 p.m. Crews may mobilize equipment as early as 6 a.m., and some activities may occur at night from 9 p.m. to 6 a.m.

Springdale Street

REMINDER! Crews are constructing the new bridge over I-405. The outside abutments are currently in settlement until approximately mid-March.

The 405 Community Outreach Team will provide updates on the bridge when more activities are scheduled.

Bolsa Avenue

REMINDER! Crews are constructing the sound wall along southbound (SB) I-405, between the Bolsa Avenue bridge and the railroad.

Activities include soil backfill and compaction, placing concrete forms, and pouring concrete.

Construction is ongoing, 7 a.m. to 4 p.m. on weekdays and Saturdays, as needed for approximately one week.

This work will also include intermittent nighttime lane reductions on SB I-405, between Bolsa Avenue and McFadden Avenue.

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

REMINDER! Crews will continue pile driving for the Bolsa Avenue bridge, along northbound I-405. Approximately 60 piles will be used.

Ongoing, 7 a.m. to 4 p.m. and continue on weekdays, and Saturdays, if needed for approximately two weeks.

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

REMINDER! Crews are installing piles for the foundation of the Newland Street bridge over I-405. The foundation of the outside abutments consists of 76 steel piles.

The pile installation for the outside abutments is ongoing 7 a.m. to 4 p.m. for approximately three more weeks, on weekdays and Saturdays as needed.

Crews will begin installing piles for the center bents later this year.

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.

Fairview Road

NEW! Crews will place asphalt on northbound Fairview Road along the sound wall and new sidewalk between McCormack Lane and the southbound I-405 on-ramp. Additionally, crews will also place concrete for the bridge.

The asphalt work requires NB Fairview to be reduced to one lane between Paularino Avenue and the southbound I-405 on-ramp from Fairvew, 11 p.m. TONIGHT, ,Wednesday, Feb. 9, to 6 a.m. Thursday, Feb. 10.

The concrete work requires Fairview to be reduced to one lane in each direction between South Coast Drive and McCormack Lane, 11 p.m. Friday, Feb. 11, to 6 a.m. Saturday, Feb. 12.

Please be advised that this work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

I-405/SR-73 HOV Connector

REMINDER! Crews are working on the foundation of the southbound (SB) I-405/SR-73 HOV connector bridge. The foundation consists of 8 cast-in-drilled hole (CIDH) and 35 steel pipe piles.

The CIDH activity includes installing large-diameter casings approximately 200 feet into the ground.

The steel pipe piles will be driven into the soil until reaching a hard layer of earth beneath the structure foundation.

Pile installation activities are ongoing and will continue 7 a.m. to 4 p.m. on weekdays and weekends, as needed, through Spring 2022.

Daytime and nighttime lane reductions on SB I-405, between SR-73 and Bear Street are anticipated to support 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.

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.

1 Comment

  1. On the northbound lanes of Bolsa Chica Road, vehicles now have access to the SB405 on-ramp at the new traffic signal.

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