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I-405 Improvement Project Construction Alert: Week of March 11

Bridge Demolition Activities

Fairview Road

What: Partial demolition of the Fairview Road bridge. Crews will demolish a portion of the bridge over northbound (NB) and southbound (SB) I-405.
Where: The Fairview Road bridge over NB and SB I-405. The freeway will be closed in both directions from Fairview Road to SR-73.

Additional Closures

  • Fairview Road will be closed from South Coast Drive to McCormack Lane
  • NB SR-73 to NB I-405 Connector will be closed.
  • NB I-405 Off-Ramp to Susan will be closed.
  • NB I-405 Off-Ramp to Harbor will be closed.
  • NB I-405 On-Ramp from Fairview Road will be closed.
  • SB I-405 to SB SR-73 will be closed.
  • SB I-405 On-Ramp from Fairview Road will be closed.
  • SB SR-73 On-Ramp from Fairview Road will be closed.

Detours will be in place to navigate motorists around the closures.

All closures and detours are included in our interactive map and on our closure list.

When: As early as 10 p.m. Saturday, March 9, to 9 a.m. Sunday, March 10, and as early as 10 p.m. Saturday, March 16, to 9 a.m. Sunday, March 17.

Detours:
DETOURS FOR NORTHBOUND (NB) MOTORISTS

  • NB I-405, NB SR-73
    Exit Fairview off-ramp >> Enter Fairview on-ramp
  • NB I-405 from Fairview
    Use South Coast Drive on-ramp
  • Susan Street/Harbor Boulevard from NB SR-73
    Exit Fairview off-ramp, follow detour signs
  • Susan Street/Harbor Boulevard from NB I-405
    Exit South Coast Drive, follow detour signs

DETOURS FOR SOUTHBOUND (SB) MOTORISTS

  • SB I-405
    Exit Fairview off-ramp >> Enter Fairview on-ramp
  • SB I-405 from Fairview
    Fairview >> Right to Baker >> Left to Bristol Street >> Left to SB I-405 on-ramp
    Fairview >> Right to South Coast Drive >> Left to Harbor Blvd >> Right to SB I-405 loop on-ramp
  • SB I-405 to SB SR-73
    Exit Fairview off-ramp >> Right to Fairview >> Left to Baker St >> Left to Bear Street >> Right to SR-73 on-ramp
  • SB SR-73 from Fairview
    Fairview Road >> Right to Baker >> >> Left to Bear Street >> Right to SR-73 on-ramp

Construction Activities

Goldenwest Street

What: Crews are scheduled to complete the Goldenwest Street bridge traffic shift.
Where: Goldenwest Street will be closed from Georgetown Avenue to Santee Avenue to allow crews to restripe lanes and install temporary concrete barriers.

The following traffic conditions will remain in place for approximately 12 months:

  • NB Goldenwest Street left-turn lanes onto Bolsa Avenue will be reduced to one lane.
  • The left-turn lane onto Westminster Mall Road will be closed.
  • The left-turn lane from Westminster Mall Road onto Goldenwest Street will remain open.

When: As early as 10 p.m. Friday, March 8, to 6 a.m. Saturday, March 9
Detours:

Southbound Goldenwest Street

Goldenwest Street -> Westminster Boulevard -> Edwards Street -> McFadden Avenue -> Goldenwest Street
Goldenwest Street -> Hazard Avenue -> Beach Boulevard -> Edinger Avenue -> Goldenwest Street

Northbound Goldenwest Street

Goldenwest Street -> Edinger Avenue -> Beach Boulevard -> Hazard Avenue -> Goldenwest Street
Goldenwest Street -> McFadden Avenue -> Edwards Street -> Westminster Boulevard -> Goldenwest Street

Bolsa Avenue

What: Crews are scheduled to shift traffic to the north side of the Bolsa Avenue bridge in early March, in anticipation of the upcoming partial demolition of the bridge.
Where: Bolsa Avenue will be closed from Goldenwest Street to Chestnut Street to allow crews to restripe lanes and install temporary concrete barriers. The northbound and southbound I-405 loop off-ramps to Bolsa Avenue, and southbound I-405 on-ramp will also be closed.
When: As early as 10 p.m. Monday, March 11, to 5 a.m. Tuesday, March 12
Detours: Eastbound: Bolsa Avenue -> Goldenwest Street -> Hazard Avenue -> Hoover Street or Beach Boulevard -> Bolsa Avenue
Westbound: Bolsa Avenue -> Beach Boulevard -> Hazard Avenue -> Goldenwest Street -> Bolsa Avenue

Bolsa Chica Road

What: Settlement fill construction and pile installation for shoring
Where: Adjacent to the Bolsa Chica Road bridge, on the northbound and southbound sides of I-405.
When: As early as 7 a.m. to 4 p.m., ongoing, through Friday, March 15 on weekdays
As early as 10 p.m. to 5 a.m. ongoing, through Friday, March 15 on weekdays
Why: These large piles of dirt will remain in place for up to three months to compact the soil beneath them for future bridge support structures.

Pile Installation Activities

Bolsa Chica Road

What: Nighttime and daytime pile installation
Where: Crews will be working near the center median columns on the freeway, behind lane closures.
When: As early as 6:30 a.m. to 4 p.m. ongoing, through Friday, April 5, Monday through Saturday
As early as 11 p.m. to 5 a.m. ongoing, through Friday, April 5, Monday through Saturday
A portion of this work may require lane closures, which can only be done at night.
Why: Pile installation is necessary to construct the foundation of the new Bolsa Chica Road bridge.

Goldenwest Street

What: Daytime pile installation
Where: Adjacent to Goldenwest Street, on the northbound and southbound sides of I-405. Crews will also be working near the center median columns on the freeway, behind lane closures.
When: 7 a.m. – 4 p.m. ongoing, through March 22 on weekdays and Saturdays
Why: Pile installation is necessary to construct the foundation of the new Goldenwest Street bridge.

McFadden Avenue

What:Daytime pile installation
Where: Adjacent to McFadden Avenue, on the southbound side of I-405.
When: Ongoing, 7 a.m. – 4 p.m., Monday – Sunday
Why: Pile installation is necessary to construct the foundation of the new McFadden Avenue bridge.

Wall Construction Activities

Milan Street

What: Crews will remove demolished wall material.
Crews are demolishing the existing I-405 sound wall and sidewalk adjacent to Milan Street.
A temporary noise barrier has been installed while the new sound wall is under construction.
The new sound wall will be approximately 13 feet high on the Milan Street side of the wall.
A new sidewalk also will be constructed.
Where: Milan Street, between approximately Stratford Avenue and 200 feet south of Lowell Circle.
When: Ongoing, 7 a.m. – 4 p.m. on weekdays

Neighboring Projects

Southern California Edison

What: Southern California Edison (SCE) will be relocating several electrical towers.
Where: Beach Boulevard, the NB and SB I-405 on- and off-ramps, the SB I-405 off-ramp onto Center Avenue, and Center Avenue will be closed. The California Highway Patrol (CHP) will also manage intermittent traffic breaks on SB and NB I-405 in 15-minute increments.
When: March 23 to April 27, on Sunday mornings

This article was released by the Orange County Transportation Authority.