North Gate Road Construction Updates

Pile Driving

Pile driving was scheduled to begin as early as June 8 along North Gate Road from 7 a.m.-4 p.m. The North Gate sound wall is being replaced as part of OCTA’s I-405 Improvement Project.

Pile driving, which can be loud, is expected to last for approximately two weeks as part of construction work for the foundation of a sound wall along southbound I-405 adjacent to North Gate Road; 45 piles will be driven into the soil.

Also, pile driving started June 6 next to the southbound I-405 off-ramp to Seal Beach Boulevard from 7 a.m.-4 p.m. and was expected to last for approximately one week. It will pave the way to build the Seal Beach Boulevard bridge monument structure adjacent to the southbound I-405 off-ramp to Seal Beach. Two piles are being installed.

Crews may mobilize equipment as early as 6 a.m., and some support activities may occur from 9 p.m.-6 a.m.

Sign up for Seal Beach Blvd. and North Gate Rd. construction alerts at bit.ly/405sealbeachcommunity.

For project-wide and bridge-specific construction alerts, visit

bit.ly/405-signup.

The duration of this work may change depending on site conditions. The schedule is subject to change due to inclement weather or unforeseen operational issues.

Road Closure

The Orange County Transportation Authority (OCTA) is scheduled to fully close North Gate Road as early as June 13 to build a new 18-inch sewer line that crosses the 405 from North Gate Road to Old Ranch Parkway.

The schedule is subject to change due to inclement weather or other unforeseen circumstances.

Work is expected to be completed in 8-to-12 weeks. The I-405 Improvement Project team will host an online meeting to provide the community with an update on the North Gate Road construction.

The meeting is scheduled from 4-5 p.m. on Thursday, June 9. People can register for the meeting online at bit.ly/405webinarnorthgateroad.