Construction work is continuing on the Wall and Soil Improvements Project. Crews have started a specialized soil improvement process and are working 12-hour shifts. As part of this work, a portion of the Talbert Marsh Bike Path will be fully closed.
Bike Path Closure:
- Location: Talbert Marsh Bike Path, Huntington Beach – between the Santa Ana River Trail access point and Brookhurst St.
- When: Starting Wednesday, August 20 through Friday, September 5 — full 24/7 closure.
- Impact: No access to the Talbert Marsh Bike Trail. For your safety and the safety of our crews, please do not access the trail and take the appropriate detours.
- Detour: Please see the below map for an alternative route.
Construction Work:
The improvements will make the soil stronger, helping to prevent the soil from moving around during earthquakes or heavy rain, supporting the long-term safety of current and future infrastructure.
When: Ongoing through early 2026*
Extended Work Hours: Monday – Friday, 7 a.m. – 7 p.m.
*All dates and times subject to change due to operational factors or inclement weather.
What to Expect:
- Increased truck and machinery movement near the site
- Increased activity and noise are expected near the construction site
We appreciate your patience as we complete this important safety work!
Project Description
This project will make soil improvements and replace the perimeter chain link fence at the southern end of Plant No. 2 along the Talbert Marsh with a concrete wall. Soil improvements will help to protect facilities of ground movements from seismic events. The top of the wall will have a wave-like pattern ranging between 8-feet to 11-feet tall. Existing vegetation, landscaping, and tiered concrete block planters behind the fence will be removed. New trees, native plants, and drought resistant vegetation will be planted.
Below is a view from Brookhurst Avenue looking towards the southwest corner of Plant No. 2. The images show the current view and a rendering of the same location when the project is completed.
The wall with have stamped concrete artwork of marsh birds to embrace its location adjacent the Talbert Marsh and Pacific Ocean.
Project Background
OC San Plant No. 2 falls under Homeland Security guidelines for critical infrastructure. The wall will provide site security, visual screening of the process facilities, protection from future sea level flood protection, and withstand tsunami forces. Soil improvements will provide lateral spread mitigation by keeping large structures, current and future, in place so they do not shift.
CEQA:
This project is part of the Biosolids Master Plan. All CEQA documents can be viewed here.
Status:
Construction started spring 2025 and will take approximately 2.5 years to complete.
Soil improvements using deep soil mixing will occur the first half of the construction, followed by the construction of the wall.
Stay In The Know
Community Liaison:
(714) 378-2965
Email:
constructionhotline@ocsan.gov
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Related Construction
Site Location
Construction Schedule
2025-2027
Construction Budget
$25.3 million