Pipeline Construction

Huntington Beach Pipeline Map

Huntington Beach Pipeline Map

Beneath our city streets hides a maze of pipelines; gas, sewage, and water – the necessary components of urban life that pump underground every second, every day.

The proposed desalination facility, which will bring fresh, pure water to our neighborhoods, is the best drinking water alternative. As time passes, desalination will be essential to the survival of our growing community.

The construction process will be overseen continually by the City of Huntington Beach, local officials and statewide regulatory agencies. The pipeline construction in the City of Costa Mesa will be led by the Mesa Consolidated Water District.  The four mile pipeline route will be installed in four phases, ensuring that the community as a whole will not be impacted by the construction. Construction should take approximately 10 to 12 months to complete.

Poseidon Resources will follow the guidelines listed below during the construction process to ease burden for Orange County residents:

  • Construction will only take place between 9:00am and 4:00pm
  • No nighttime construction
  • No construction during the morning commute
  • All trenches will be plated when construction is completed for the day
  • No lane closures during non-construction times
  • No street closure at anytime
  • Construction will be done in four phases, limiting the amount of impact time. Once a phase is completed, improvements to the asphalt, paint and center dividers will be apparent.

When many people think of pipeline construction, they picture the inconvenience involved with installing the nine foot diameter Orange County Sewer District pipeline. There are many differences between that kind of project and the desalination pipeline, outlined in the table below:

Construction Project Characteristics Length of Construction Other Considerations
Desal Pipeline
Diameter of 48” – 54″
Pressurized pipeline design and small size allow for shallow trenches and no dewatering 10 – 12 months in 4 phases; impact on each street section will be minimized No negative impacts on the Ascon Berm site
OCSD Pipeline
Diameter of 9 feet
Gravity flow design and size required deep excavations, construction below the water table and dewatering 30 months; due to size of pipe & gravity-flow design, entire length of construction was impacted during construction process No impact where the desal pipeline intersects with the OCSD pipeline; crossing at Bushard and Hamilton can be handled with a simple concrete casing

Every precaution will be taken to ensure that questions and comments from members of the community are taken into account. Poseidon has set up a hotline for resident input or suggestions before and during the construction period, has contacted local businesses along the pipeline that may be affected by construction, will create a community advisory board for residents to sit on, will hold town meetings to discuss construction concerns, and will post regular web updates for residents.

Pipeline construction is a regular occurrence in any community, whether for installing new pipes or repairing old ones. The installation of this new pipeline means a new source of fresh drinking water, and a step towards a reliable future, both for Huntington Beach and Orange County.


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