Sound wall prep to start on North Gate

OCTA

An Orange County Transportation Authority contractor is preparing to install an 8-foot chain link fence with sound blankets behind the k-rail along North Gate Road. The work is in preparation for a new sound wall.

North Gate Road remains closed due to construction related to the 405 Freeway Improvement Project.

The fence installation is scheduled to begin at 7 a.m., Monday, Feb. 8, with work continuing until 4 p.m. The job should be completed by Friday, Feb. 12.

Crews may mobilize as early as 6 a.m. Construction dates and times are subject to change due to unforeseen operational factors or inclement weather.

This activity is in preparation of upcoming wall construction, which includes demolition, hauling, excavation, cast-in-drilled-hole (CIDH) pile installation, pile driving, rebar, concrete, backfill and block wall installation. (CIDH piles are commonly used in the construction of bridge structures and refer to a construction method in which the reinforced concrete piles are cast in drilled holes to predetermined elevations using a heavy wall steel casing to prevent caving.) The sound wall construction is scheduled to begin in early spring/ summer 2021.

North Gate Road has been closed for months due to sewer construction, which was suspended in December as a result of unforeseen soil conditions.

This development required a complete project redesign, according to the 405 widening contractor, OC405. The project calls for a sewer line to be built underneath the 405 Freeway.

The redesign of the freeway sewer crossing should be completed soon, with construction anticipated to resume this month. The sewer line project should be completed by May. To accommodate this construction, it is anticipated that North Gate Road will remain closed until May.

The 405 Outreach Team will provide updates as developments unfold.