Westminster Sewer Construction Update – January 26, 2022

Home >> News >> Westminster Sewer Construction Update – January 26, 2022

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.  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. One pipeline replacement has been completed. Construction began Spring 2020 and is anticipated to be completed late 2022.   

Although replacement of the second pipeline is restricted to only during the dry weather season which begins mid-April, there is still activity in preparation of the replacement work.  

Intersection of Westminster Blvd. and Bolsa Chica

Surveying work and laying steel plates through the intersection. The 4-way traffic signal will be on flashing red with traffic control officers directing traffic.

  • Starting January 27*, lasting approximately 3-4 weeks
  • Work Hours are Monday – Friday, 9 a.m. – 3 p.m.
  • Left turns onto Westminster Blvd. may not always be available
    • For southbound Bolsa Chica, detour using Duncannon or Loyola

After this work activity is completed, crews will come back in the Spring during the dry weather season to begin replacement of the second pipeline. More information will be provided as the work approaches.

The photo below taken March 2021 show workers laying out the alignment in preparation of the replacement of the first pipeline.

Between Bolsa Chica and Rancho Rd.

Construction of slip-lining access pits.  Read the Neighborhood Bulletin to learn more about slip-lining.

  • Ongoing – March 2022*
  • Work Hours are Monday – Friday, 8:30 a.m. – 3:30 p.m.
  • Westminster Blvd. down to one lane

Intersection of Westminster Blvd. and Rancho Rd.

Construction of the local Midway City Sanitary District sewer lines have been constructed through the intersection.  But there is still more work to occur. There are two regional sewer pipes, or inverted siphons, that dip under the channel. Upcoming construction will rehabilitate these siphons.  The work will first require the construction a new 84-inch diameter manhole and installation of bypass pipes to safely rehabilitate the siphons. More information will be provided when work dates approach.

*All dates and times are subject to change due to operational factors or inclement weather.

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 Questions?  Construction Hotline 714.378.2965 or ConstructionHotline@ocsan.gov.

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