Company:
City of Newport Beach
Status:
Awarded
Awarded:
Water Project of the Year
Additional Files
Additional Information

Corona del Mar Water Transmission Main

Project Location:

City of Newport Beach

Project Description:

The City’s Water Master Plan identified the need for a new water transmission main from Big Canyon Reservoir to the western side of Corona del Mar. The project provides more than 8,400 linear feet of new transmission line, from 30-inch to 12-inch cement mortar lined and tape wrapped or epoxy coated steel pipes, and relocation of a pressure regulation unit.

Project Justification:

This project constructed over a mile of 30-inch diameter cement and mortar lined steel pipe through the heart of Newport Beach. Main line trenching down MacArthur Boulevard and East Coast Highway created logistical challenges to maintain traffic flow to businesses, schools, regional commuters and adjacent neighborhoods. Extensive traffic control measures included coordinating intermittent night work, brief roadway closures and detours to minimize disruptions. Regular construction updates were published via social media outlets: Facebook and Twitter, email news blasts, project dedicated web page updates, community newsletters and construction letters to residents to kept the public well informed.

Special Circumstances:

The City of Newport Beach completed a preliminary design alignment analysis report in January 2001 for the Big Canyon Reservoir to Corona del Mar Water Main. The report recommended a 30-inch cement and mortar lined, taped and coated steel cylinder transmission main using the street rights-of-way of Pacific View Drive, San Miguel Drive and MacArthur Boulevard. The City also determined a similar 24-inch transmission main on Carnation Avenue from East Coast Highway to Bayside Drive would increase the reliability of the water system and improve fire flow pressure. In addition, the City relocated its Metropolitan Water District (MWD) turnout regulator structure from East Coast Highway to Dahlia Avenue out of the highway right-of-way. The new 30-inch and 24-inch pipelines provide a secondary redundant mainline, which will be a critical facility if a failure of the existing transmission system occurs.

Project Attachments:

n/a

Award Citation::

The City’s Water Master Plan identified the need for a new water transmission main from Big Canyon Reservoir to the western side of Corona del Mar. The project provides more than 8,400 linear feet of new transmission line, from 30-inch to 12-inch cement mortar lined and tape wrapped or epoxy coated steel pipes, and relocation of a pressure regulation unit.

Suggested Award Summary:

The City of Newport Beach completed a preliminary design alignment analysis report in January 2001 for the Big Canyon Reservoir to Corona del Mar Water Main. The report recommended a 30-inch cement and mortar lined, taped and coated steel cylinder transmission main using the street rights-of-way of Pacific View Drive, San Miguel Drive and MacArthur Boulevard. The City also determined a similar 24-inch transmission main on Carnation Avenue from East Coast Highway to Bayside Drive would increase the reliability of the water system and improve fire flow pressure. In addition, the City relocated its Metropolitan Water District (MWD) turnout regulator structure from East Coast Highway to Dahlia Avenue out of the highway right-of-way. The new 30-inch and 24-inch pipelines provide a secondary redundant mainline, which will be a critical facility if a failure of the existing transmission system occurs.

CEC

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