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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.
NEW! Southbound I-405 Closure to Adjust Falsework for the Bolsa Avenue Bridge
Crews will adjust falsework for the Bolsa Avenue bridge over I-405. This work will require a southbound (SB) I-405 closure between the SB I-405 loop off-ramp to Westminster Boulevard and the SB I-405 on-ramp from Bolsa.
The SB I-405 closure is scheduled for 11 p.m. Saturday, March 12, to 6 a.m. Sunday, March 13.
Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
NEW! Brookhurst Street Closures to Install Drainage and Remove Shoring
Crews will install drainage and remove shoring from the Brookhurst Street bridge over I-405. This work will require closures on the bridge.
Brookhurst will be fully closed between the freeway ramps 10 p.m. Monday, March 14, to 5 a.m. Tuesday, March 15.
Nightly southbound Brookhurst closures are also scheduled for 10 p.m. to 5 a.m. Tuesday, March 15, through Friday, March 18.
Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
UPDATE! Southbound (SB) I-405 Goldenwest Street On-Ramp and Bolsa Avenue Off-Ramp to Close
Crews will close the SB I-405 loop off-ramp to Bolsa Avenue and the SB I-405 loop on-ramp from Goldenwest Street to accommodate the freeway widening.
The SB I-405 loop off-ramp to Bolsa is anticipated to close 10 p.m. Saturday, March 12, for approximately two months.
The SB I-405 loop on-ramp from Goldenwest is also anticipated to close 10 p.m. Saturday, March 12, for approximately four months.
Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
REMINDER! Southbound Loop On-Ramp from Brookhurst Street to Close for Approximately Six Weeks
Crews will close the SB I-405 loop on-ramp from Brookhurst Street for approximately six weeks to accommodate the freeway widening.
The ramp is anticipated to close as early as 10 p.m. Monday, March 14, for approximately six weeks.
Click to see closures and detours on the interactive map.
REMINDER! Northbound I-405 Warner Avenue On- and Off-Ramps Closed for Approximately 45 Days
Crews closed the NB I-405 on-ramp from Warner Avenue and the NB I-405 loop off-ramp to Warner on Wednesday, Feb. 23, to accommodate the freeway widening.
The ramp is anticipated to reopen after approximately 45 days.
REMINDER! 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 ongoing 11 p.m. to 5 a.m. through Saturday, March 19. Closures are set for Mondays to Thursdays from 11 p.m. to 5 a.m. and Fridays and Saturdays, as needed, from 11 p.m. to 6 a.m.
Click to see closures and detours on the interactive map.
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 at 5 a.m. Monday, March 13.
REMINDER! Westbound (WB) SR-22 On-Ramp from Old Ranch Parkway Closure to Extend for Approximately Six Weeks
Crews closed the Old Ranch Parkway on-ramp to WB SR-22 on April 13, 2021. The ramp will be closed for an additional six weeks 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.
NOW OPEN! Southbound I-405 On-Ramp from Seal Beach Boulevard is Now Open to Traffic
The Southbound I-405 on-ramp from Seal Beach Boulevard is now open to traffic.
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 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 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.
Beach Boulevard
UPDATE! Crews will shift K-rail and restripe lanes on Beach Boulevard between Edinger Avenue and McFadden Avenue. This work will require lane reductions on Beach.
The northbound and southbound Beach lane reductions have been postponed to a later date. The 405 Community Outreach Team will provide an update in future alerts.
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 demolishing the concrete barrier and columns from the old Newland Street bridge in the center median of the freeway.
The work is ongoing, 7 a.m. to 4 p.m. for approximately one more week on weekdays.
Intermittent nighttime lane reductions on I-405 are also anticipated for this 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.
Heil Avenue
REMINDER! Crews will install piles for the foundation of a sound wall along southbound (SB) I-405, adjacent to homes that are near the Heil Avenue pedestrian bridge.
The foundation consists of 42 cast-in-drilled-hole (CIDH) piles. Crews will use an auger to drill large holes, install forms and steel cages and pour concrete into the holes to form the piles.
Following these activities, crews will begin constructing the footing, placing rebar, and pouring concrete to construct the wall.
The pile installation is ongoing, 7 a.m. to 4 p.m. for approximately two 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.
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.
