405

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

Bolsa Avenue Traffic Switch

Crews will close Bolsa between Goldenwest and Chestnut for approximately one weekend to accomodate freeway widening in mid-June.

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

NB I-405 Loop Off-Ramp to Bolsa Avenue to Close Crews will close the northbound I-405 loop off-ramp to Bolsa for approximately three months to accommodate the freeway widening in mid-June.

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

NB I-405 On-Ramp Closed

Crews closed the northbound I-405 on-ramp from Westminster Boulevard for approximately seven weeks on May 11 to accommodate 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. SR-22 On-Ramp from Old Ranch Parkway Closed The Old Ranch Parkway onramp to the westbound SR-22 closed April 13 for eight months to accommodate freeway widening.

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

Work hours are from 7 a.m.-4 p.m. Crews may mobilize equipment as early as 6 a.m. Nighttime work hours are 9 p.m.-6 a.m.

NB I-405 and SR-73 Off Ramps to Fairview Road Closed Crews closed the northbound I-405 and SR-73 off-ramps to Fairview on April 5 for approximately 100 days to accommodate the freeway widening.

SB I-405 Off-Ramp to Bolsa Chica Road Closed Crews closed the southbound I-405 off-ramp to Bolsa Chica on Oct. 27 for approximately one year to advance construction on the Bolsa Chica bridge.

Almond Avenue Update

Demolition and reconstruction of the sound walls along Almond Avenue in College Park East are anticipated to start soon. Crews will install a temporary sound barrier prior to demolition.

Bolsa Chica Road

Continuation of pile driving for the Bolsa Chica bridge over I-405 along the center median and southbound I-405 at Bolsa Chica bridge. The work is ongoing 7 a.m. to 4 p.m. on weekdays for approximately two months. Crews may mobilize equipment as early as 6 a.m., and some activities may occur from 9 p.m.-5 a.m. as needed.

Westminster Boulevard

Crews began working on the foundation of the retaining wall adjacent to Cascade Park along the southbound (SB) I-405 onramp from Westminster Boulevard. The foundation consists of approximately 80 cast-in-drilledhole (CIDH) piles.

Work is ongoing from 7 a.m.-4 p.m. on weekdays, for approximately one month.

Crews may mobilize equipment as early as 6 a.m., and some activity may occur at night. Intermittent nighttime closures of the southbound I-405 on-ramp from Westminster may be required.

Additional construction activities including rebar, form and concrete activities are underway, and backfill and block wall installation is anticipated in July and August.

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

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

I-405 Improvement Project automated call and text alerts will now start coming to subscribers from the I-405 Project Helpline number (888-400-8994). This will allow people to leave messages if they have questions or concerns about the project.