CONSTRUCTION UPDATE
A lot of progress has been made on rehabilitating the sewer pipeline, extending the life of the sewer system another 25-30 years. Work is ongoing and continues with manhole rehabilitation and other activities. Continue reading for more information.
🚧 LOCATION: Brookview Community
What: Manhole access improvements, includes adding a wider gate opening and driveway
When: Mid-September lasting approximately 3-4 weeks
Hours: Monday – Friday, 7 a.m. – 5 p.m.
What to Expect:
- Designated parking spaces near the work will be unavailable during working hours.
- Increase construction activity and noise levels are expected.
🚧 STREETS NEAR WORK AREA: South Coast Drive, San Leandro Lane, Concord Street
The sewer pipeline crossing under the 405 freeway will be rehabilitated using the cured-in-place-pipe (CIPP) method. More information about CIPP is listed at the end.
When: Schedule is TBD, estimated to be early 2026. Exact date will be provided when the schedule is confirmed.
Hours: Nightwork 9 p.m. – 6 a.m.Â
What to Expect: Â
- Increase in activity and noise levels from construction vehicles and equipment.
- Vactor trucks will be used to vacuum wastewater out of the pipeline from a nearby manhole to keep flows out of the section of pipe that will be rehabilitated. This activity can be loud.
- Some odors may be noticeable in the immediate area but are temporary.
*All dates and times are subject to change due to operational factors or inclement weather.
About Cured-in-Place Pipe (CIPP)
A pre-measured liner is delivered in a refrigerated truck and inserted through a manhole opening into the existing pipeline. After the liner has been inserted, it is filled with water that is heated to a certain temperature and cured for several hours. When fully cured, the liner now acts as the new pipeline. Once the CIPP operation begins, it cannot be stopped until completed, thus requiring the 24/7 continuous work. Crews will be onsite for monitoring throughout the entire process.
Project Description
This project will rehabiliate approximately 4 miles of the regional sewer pipeline that runs along the I-405 freeway in the City of Costa Mesa. Project elements include the rehabilitation of gravity sewer pipelines, manhole structure rehabilitation, and manhole access improvements. The project also includes the rehabilitation of sewer pipelines that cross under the I-405 freeway.Â
Project Map
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Community Liaison:
(714) 378-2965
Email:
constructionhotline@ocsan.gov
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Related Construction
Site Location
Construction Schedule
Summer 2024 - early 2026*
Construction Budget
$43.4 million