The project will replace and reconstruct nearly three miles of two regional sewer pipelines on Westminster Boulevard between Seal Beach Boulevard and Rancho Road/Hammon Place in the cities of Seal Beach and Westminster. Construction began Spring 2020 and is anticipated to be completed late 2022.
Photo above:Â Recently paved and restriped Westminster Blvd. in the City of Seal Beach
Current and upcoming activities:
Intersection of Westminster Blvd. and Rancho Road/Hammon Place
Private sewer laterals connect to the local sewer pipelines that connect to OC San’s larger regional pipelines. As part of this project, OC San will be working on a portion of the local sewer pipelines, owned by the Midway City Sanitary District, at the intersection of Westminster Blvd. and Rancho Road.
Between Bolsa Chica and Rancho Road
This project replaces two existing side-by-side regional sewer pipelines. One pipeline will be replaced at a time while the other pipeline is in service 24/7 to collect and transport wastewater for treatment and recycling. The contractor is currently working on completing construction of the first sewer pipe. This will also include all the necessary tie-in connections, pressure testing, and closed circuit televising (CCTV) of the interior of the pipe before putting the pipeline in service.
- Monday – Friday. 7:30 a.m. – 5 p.m.
- Westminster Blvd. will be reduced to one lane in each direction.
- Some activities may occur outside work hours within the k-rail sections between the hours of 7 a.m. and 7 p.m.
Near or at the Intersection of Westminster Blvd. and Bolsa Chica Rd.
Steel plate removal and paving through the intersection is anticipated to occur in the next several weeks.
- Monday – Friday, 9 a.m. – 3 p.m.
- When working in the intersection, traffic signal at the intersection will be on flashing red. Treat as a 4-way STOP.
- Be alert. There will be traffic lane closures and turn restrictions. Flaggers will be onsite to assist with directing traffic.
There will be construction activity that may require the temporary closure of the Westminster Blvd. driveway at 7 Eleven. The driveway on Bolsa Chica Rd. will remain open.
Between Seal Beach Blvd and Bolsa Chica
Over 1 mile (7,000 feet) along Westminster Blvd. between Kitts Highway (east of Seal Beach Blvd.)Â and Bolsa Chica Rd. has been paved and restriped to the original configuration before the construction project.
Any repairs to the original bicycle lane will occur and the temporary bicycle lane that was put in as part of this project will be removed in the coming months.
Seal Beach Pump Station (Intersection of Westminster Blvd and Seal Beach Blvd)
Construction is currently taking place by the Seal Beach Pump Station site. Paving is anticipated to occur later this month.
*All dates and times are subject to change due to operational factors or inclement weather.
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 View the project progress map for July.
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 Questions? Construction Hotline 714.378.2965 or ConstructionHotline@ocsan.gov