405 Freeway Alert
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: UPDATE! Northbound (NB) Full Freeway Closures for Bolsa Avenue Bridge Work Crews will continue constructing the falsework for the Bolsa bridge over NB I-405. This work requires full NB freeway closures between Beach Boulevard and McFadden Avenue. The closures are set for 11 p.m.-5 a.m., Tuesday, Sept. 8, to Friday, Sept. 11.
Southbound I-405 Loop Off-Ramp to Westminster Boulevard Closure is RESCHEDULED The southbound (SB) I-405 loop off-ramp to Westminster Boulevard was rescheduled to close as of Aug. 26 for approximately one year. Activities include demolition, excavation, grading, drainage and electrical system installation, concrete pours and asphalt pav- ing to accommodate the freeway widening.
Southbound I-405 Loop Off-Ramp to Beach Boulevard is PERMANENTLY CLOSED The SB I-405 loop off-ramp to NB Beach Boulevard is permanently closed. Motorists will use the Beach Boulevard/Center Avenue off-ramp from now on to access NB and SB Beach.
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.
COMING SOON! Northbound I-405 On-Ramp to Warner Avenue to Close for Approximately One Month Crews will close the NB I-405 on-ramp from Warner to support the freeway widening. The 405 Community Outreach Team will provide detailed closure and detour information in future alerts.
COMING SOON! Northbound I-405 On-Ramp to Magnolia Street to Close for Approximately One Month Crews will close the NB I-405 on-ramp from Magnolia to support the freeway widening. The 405 Community Outreach Team will provide detailed closure and detour information in future alerts.
UPDATE! Southbound (SB) Full Freeway Closures for Bolsa Avenue Bridge Falsework Installation Crews will be constructing the falsework for the Bolsa bridge over SB I-405. This work requires full SB freeway closures between Goldenwest Street and Bolsa. The closures were set for 11 p.m.-5 a.m. through today, Thursday, Sept. 3.
REMINDER! NB I-405 Loop Off-ramp to Westminster Boulevard Closed for One Year Crews closed the NB I-405 loop off-ramp to Westminster Boulevard. The ramp will be closed for approximately 12 months to allow construction of new walls and ramps at this location in one stage, eliminating multiple traffic shifts and confusion for motorists.
Orange County Sanitation District Crews are replacing sewer lines on Westminster Boulevard between Seal Beach Boulevard and Bolsa Chica Road.
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