405
construction. Activities include the removal of existing sidewalk ramps, installation of new sidewalk ramps and electrical and foundation work.
Permanent traffic signal construction began June 1 and will continue for approximately six weeks on weekdays.
Daytime work hours are 9 a.m.-3 p.m.
Seal Beach Boulevard and Lampson will be intermittently reduced to two lanes at the intersection for the duration of the work.
Nighttime temporary traffic signal removal and permanent pole installation are anticipated in early July.
Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup.
Bolsa Avenue Traffic Switch
Crews are scheduled to switch traffic to the new portion of the Bolsa Avenue bridge. This work is in anticipation of the upcoming demolition of the old portion of the Bolsa bridge, and will require a full closure of Bolsa between Goldenwest Street and Chestnut Street. Activities include asphalt removal, excavation, pavement work, and striping and K-rail modifications.
The Bolsa closure is scheduled for 10 p.m., Friday, June 18, to 5 a.m., Monday, June 21.
Bolsa Avenue Full Closure
Crews will close the northbound I-405 loop off-ramp to Bolsa for about three months as early as Friday, June 18, to accommodate the 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.
The 405 Community Outreach Team will provide detailed schedule information in future alerts.
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, 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 from 7 a.m.-4 p.m. on weekdays for approximately two months.
This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.
