405 Freeway Update

The Orange County Transportation Authority, in cooperation with Caltrans, is widening the San Diego Freeway (I-405) between SR-73 and I-605.The project is improving 16 miles of I-405 between the SR-73 freeway in Costa Mesa and I-605 near the Los Angeles County line. Construction updates are as follows: Westminster Boulevard Traffic Shift

Crews will shift traffic to the new Westminster bridge over I-405. The shift will occur in three phases and will require lane reductions.

Eastbound Westminster was reduced to one lane between Springdale Street and Willow Lane, and eastbound traffic was shifted onto the new bridge Jan. 12.

Crews will be constructing the center median on weekdays and Saturdays for approximately two weeks.

Westminster will be then be reduced to one lane in each direction between Springdale Street and Willow Lane from 9:30 p.m., Monday, Jan. 25, to 6 a.m., Tuesday, Jan. 26. Westbound traffic will be shifted onto the new bridge at 6 a.m., Tuesday, Jan. 26.

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

This work may be loud. Dates and times may change due to unforeseen operational factors or inclement weather.

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

Fairview Road Traffic Shift

Crews also will soon shift traffic to the new half of the Fairview bridge over I-405 and begin working on the second half of that bridge. The traffic shift is set for early-to-mid-February and will require bridge and ramp closures.

Demolition of the second half of the bridge will occur over two weekends, under full freeway closures and is set for late February.

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

Bolsa Avenue Full Closure for Concrete Work

Crews will begin concrete work for a retaining wall along eastbound Bolsa Avenue. This work may require closures of Bolsa between Goldenwest Street and Chestnut Street.

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

Off-Ramp to Beach Boulevard is PERMANENTLY CLOSED

The southbound I-405 loop off-ramp to northbound Beach Boulevard is permanently closed. Motorists will use the Beach Boulevard/ Center Avenue off-ramp from now on to access north- and southbound Beach Boulevard.

The loop off-ramp was eliminated to accommodate the widening of Beach and of the freeway. The Beach/Center off-ramp and Center are being reconstructed to accommodate the change in traffic volume.

Email 405project@octa.net or call (888) 400-8994 for more information. The I-405 Improvement Project mobile app provides quick access to current traffic conditions, closures and detours, along with project updates and links to contact the project team. Download it from the Apple Store or Google Play.