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I-405 Improvement Project construction alert: Week of Nov. 18

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 (SB) Freeway closure for Bolsa Chica Road bridge girder placement
The Bolsa Chica bridge and SB I-405 will be closed so crews can install concrete girders for the new bridge.
  • Scheduled to occur 11 p.m. Friday, Nov. 22, to 7 a.m. Saturday, Nov. 23
NEW! Northbound (NB) Freeway closure for Bolsa Chica Road bridge girder placement
The Bolsa Chica bridge and NB I-405 will be closed so crews can install concrete girders for the new bridge.
  • Scheduled to occur 11 p.m. Saturday, Nov. 23, to 7 a.m. Sunday, Nov. 24

Construction Activities

Talbert Avenue

COMING SOON! Crews will install piles for the foundation of the new bridge.

  • Scheduled to begin in early December.
  • Crews may also conduct pile installation activities at night.

Westminster Boulevard

Eastbound (EB) Westminster will be reduced to one lane for crews to pour concrete for the new bridge.

  • 10 p.m. to 5 a.m. weekdays intermittently for approximately three months.
  • Crews may also conduct pile installation activities at night.

McFadden Avenue

Crews are scheduled to install piles for the foundation of the new center columns.

  • Ongoing, 7 a.m. to 4 p.m. weekdays for approximately one month.
  • Crews may also conduct pile installation activities at night.

Santa Ana River

Crews are installing piles for the foundation of the widened freeway over the Santa Ana River.

  • Ongoing, 7 a.m. to 4 p.m. weekdays for approximately one month.
  • Crews may also conduct pile installation activities at night.

Bushard Street

Crews are installing piles for the foundation of the new Bushard bridge.

  • Ongoing, 7 a.m. to 4 p.m. weekdays for the remainder of the week
  • Crews may also conduct pile installation activities at night.

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.