Construction work continues on the Wall and Soil Improvements Project. Current construction activity includes the drilling and placement of foundation piles for the new wall structure.
As part of this work, a portion of the Talbert Marsh Bike Path will be fully closed. The closure is necessary to ensure a safe perimeter around active construction equipment which will be staged near or along the bike path.
Bike Path Closure:
- Location: Talbert Marsh Bike Path, Huntington Beach – between the Santa Ana River Trail access point and Brookhurst St.
- When: Starting as early as Tuesday, November 4, lasting approximately five weeks — full 24/7 closure*
- Impact:Â No access to the Talbert Marsh Bike Trail. For your safety and the safety of our crews, please do not access the trail, instead take the appropriate detours.
- Detour:Â Please see the map below for an alternative route.
Current Work:
- What:Â Drilling and installing foundation piles
- When: Ongoing through early 2026*
- Work Hours: Monday–Friday, 7 a.m.–7 p.m.*
- What to Expect:
- Increased truck and machinery movement near the site
- Increased activity and noise are expected near the construction site
*All dates and times subject to change due to operational factors or inclement weather.
We appreciate your patience as we complete this important safety work!
Recent Construction Photos:
A large drill is used to create a deep, narrow hole in the ground.
A steel rebar cage is placed inside the hole where concrete will be poured.
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, future sea level flooding protection, and designed to 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:Â
This project is part of the Biosolids Master Plan. All CEQA documents can be viewed here.
Status:Â
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