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I-405 Improvement Project construction alert: Week of June 28

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.

REMINDER! Bolsa Avenue Demolition Activities

Crews are demolishing a portion of the Bolsa Avenue bridge as part of the freeway widening project.

The second half of the bridge will be demolished under a full freeway closure. The closure is scheduled for 11 p.m. Saturday, July 10, to 8:30 a.m. Sunday, July 11.

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

Northbound (NB) freeway lane closures are set for 9 p.m. Friday, July 9, to 8 a.m. Saturday, July 10.

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

UPDATE! Southbound (SB) I-405 Magnolia Street Bridge Closures for Pavement Work

Crews will continue pavement work on the Magnolia Street bridge. This work will require SB closures of Magnolia between Heil Avenue and Warner Avenue.

SB Magnolia closures are anticipated to begin as early as 9:30 p.m. to 6 a.m.:

  • Thursday, July 1;
  • Tuesday, July 6; and
  • Wednesday, July 7.

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

COMING SOON! Northbound (NB) I-405 Off-Ramp to Susan Street to Close for Approximately One Month

Crews will close the NB I-405 off-ramp from Susan Street for approximately one month to accommodate the freeway widening.

Activities include removal of the existing ramp, excavation, placement and compaction of base material, rebar and concrete work, paving, drainage installation, electrical work and striping.

The ramp is set to close in mid-July for approximately one month.

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

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

NEW! Eastbound (EB) Lane Reductions for McFadden Avenue Bridge Monument Work

Crews will continue constructing the McFadden bridge monument over I-405. This work will require EB lane reductions on McFadden between Gothard Street and Sugar Drive.

Lane reductions are anticipated to begin as early as Monday, July 5 on weekdays and weeknights, for approximately one week.

  • Daytime works hours are anticipated 7 a.m. to 3 p.m.
  • Nighttime work hours are anticipated 8 p.m. to 5 a.m.

NEW! Partial Lane Reductions of NB Euclid Street for Traffic Signal Work

Crews will perform traffic signal and street restoration at the Euclid Street/Newhope Street intersection.

This work will require nightly intermittent lane reductions on NB Euclid and westbound Newhope.

The nightly intermittent lane reductions are ongoing 9 p.m. to 5 a.m., through Thursday, July 1.

COMING SOON! Fairview Road Bridge Girder Placement

Crews will install pre-cast concrete girders for the Fairview bridge over I-405. The girders are the main horizontal support beams and are part of the superstructure.

This work will require northbound full freeway, lane, and ramp closures, as well as the closure of Fairview bridge.

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

REMINDER! Bolsa Chica Road Traffic Signal Work

Crews will install the permanent traffic signal at the Bolsa Chica Road/Old Bolsa Chica Road intersection. This work will require intermittent lane reductions on Bolsa Chica.

Activities include electrical, foundation, and concrete work.

Intermittent lane reductions are set to begin as early as Friday, July 2, for approximately two weeks.

  • Daytime work hours are 7 a.m. to 4 p.m.
  • Crews may mobilize equipment as early as 6 a.m.
  • Nighttime work hours are 10 p.m. to 5 a.m.

REMINDER! I-405 Lane Reductions for Goldenwest Street Bridge

Crews will be excavating and installing piles for the center median of the Goldenwest Street bridge over the I-405. This work will require NB and SB I-405 lane reductions between Bolsa Avenue and Goldenwest.

The lane reductions are ongoing, 5 a.m. to 12 p.m., for approximately one month.

REMINDER! SB I-405 Off-Ramp to Magnolia Street Closed for Approximately Six Weeks

Crews closed the SB I-405 off-ramp to Magnolia on June 7. The ramp will be closed for approximately three more weeks to accommodate the freeway widening.

REMINDER! Northbound (NB) I-405 Loop Off-Ramp to Bolsa Avenue Closed for Approximately Three Months

Crews closed the NB I-405 loop off-ramp to Bolsa on June 18, for approximately three months to accommodate the freeway widening.

REMINDER! SB I-405 Loop On-Ramp from Magnolia Street Closed for Approximately Three Months

Crews closed the SB I-405 loop on-ramp from Magnolia on May 11, for approximately six more weeks to accommodate the freeway widening.

REMINDER! SB I-405 Off-Ramp to Bolsa Chica Road Closed for Approximately One Year

Crews closed the SB I-405 off-ramp to Bolsa Chica on Oct. 27, 2020, for approximately four more months to advance construction on the Bolsa Chica bridge.

REMINDER! NB I-405 and SR-73 Off-Ramps to Fairview Road Closed for Approximately 100 Days

Crews closed the NB I-405 and SR-73 off-ramps to Fairview on April 5, for approximately two more weeks to accommodate the freeway widening.

REMINDER! Westbound (WB) SR-22 On-Ramp from Old Ranch Parkway Closed for Approximately 8 Months

Crews closed the Old Ranch Parkway on-ramp to the WB SR-22 on April 13, forapproximately six more months to accommodate the freeway widening.

Activities include demolition, excavation, grading, drainage and electrical system installation, concrete pours and asphalt paving.

  • Daytime work hours are 7 a.m. to 4 p.m.
  • Crews may mobilize equipment as early as 6 a.m.
  • Nighttime work hours are 9 p.m. to 6 a.m.

UPDATE! Sidewalk Closures on Seal Beach Boulevard for Signal Work

Crews closed the sidewalks at the intersection of Seal Beach Boulevard and Lampson Avenue for permanent traffic signal construction.

Activities include the removal of existing sidewalk ramps, installation of new sidewalk ramps, electrical and foundation work.

Permanent traffic signal construction began Tuesday, June 1, and will continue for approximately three months on weekdays.

Daytime work hours are 9 a.m. to 3 p.m.

Seal Beach Boulevard and Lampson will be intermittently reduced to two lanes at the intersection for the duration of the work.

Nighttime temporary traffic signal removal and permanent pole installation are anticipated in early-July.

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

REMINDER! Crews will continue excavating and installing the drainage system through July in advance of wall construction. Following this work, crews will begin working on the foundation of the wall. This foundation consists of cast-in-drilled-hole (CIDH) pile installation and is anticipated to begin in July and continue through September.

  • Daytime work hours are 7 a.m. to 4 p.m.
  • Nighttime activities may also occur between 9 p.m. to 6 a.m.

Crews may mobilize equipment as early as 6 a.m., and some activity may occur at night.

Please be advised that this work may be loud.

I-405 near Bolsa

COMING SOON! Crews will resume installing piles for the bridge over the railroad along SB I-405 between McFadden Avenue and Bolsa Avenue.

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

Please be advised that this work may be loud.

Goldenwest Street

REMINDER! Crews will continue installing piles for the Goldenwest bridge over I-405.

Ongoing 7 a.m. to 4 p.m., for approximately three weeks. Nighttime activities may also occur between 9 p.m. to 6 a.m.

Crews may mobilize equipment as early as 6 a.m., and some activity may occur at night.

Please be advised that this work may be loud.

Milan Street

COMING SOON! Sidewalk, curb and gutter work along Milan between approximately Stratford Avenue and Lowell Circle has been postponed.

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

Please be advised that this work may be loud.

Milton Street

REMINDER! Crews will continue restoration work at Milton Street. This work requires intermittent lane reductions in both directions. Parking will be unavailable between Hope Lutheran Church and Willow Lane.

Activities include drainage system installation, curb, gutter, sidewalk and concrete work,

  • Ongoing for approximately one week.

Daytime work hours will be from 7 a.m. to 3 p.m., with crews mobilizing as early as 6 a.m.

Please be advised that this work may be loud.

SR-73 Connector

COMING SOON! Crews will begin installing piles for the SR-73 bridge connector over the I-405.

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

Please be advised that this work may be loud.

Talbert Avenue

REMINDER! Crews will continue installing piles for the foundation of two walls along the SB Talbert on-ramp, adjacent to Durango River Court.

Ongoing 7 a.m. to 4 p.m., for approximately four weeks. Nighttime activities may also occur between 9 p.m. to 6 a.m.

Crews may mobilize equipment as early as 6 a.m., and some activity may occur at night.

Please be advised that this work may be loud.

Ward Street

REMINDER! Crews will continue installing piles for the Ward Street bridge over I-405.

Ongoing 7 a.m. to 4 p.m., for approximately two weeks. Nighttime activities may also occur between 9 p.m. to 6 a.m.

Crews may mobilize equipment as early as 6 a.m., and some activity may occur at night.

Please be advised that this work may be loud.

Westminster Boulevard

NEW! Crews will excavate and remove concrete from the center median of the Westminster Boulevard bridge.

Activity is set to begin Tuesday, July 6, 9 p.m. to 6 a.m., for approximately two weeks.

Please be advised that this work may be loud.

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.