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Lessons Learned from a 66-Inch PCCP Break in San Diego
On May 16, 2006, the Water Authority experienced a failure on the 66-inch diameter Pipeline 3 in Mission Trails Regional Park. The failure of Pipeline 3 also impacted Pipeline 4, prohibiting the delivery of all untreated water to three water treatment plants. An emergency contract was awarded to repair the damage at the site and to restore untreated water service. A 30-inch interconnection pipe between P3 and P4, two miles south of the break, restored 70 percent of the untreated aqueduct system capacity to the one million residents in the southern third of the county. The Water Authority prepared an action plan to restore capacity to customers affected by the break on P3. In July 2006, the Water Authority advertised a design-build contract to expedite construction of a 72-inch by 72-inch crossover in Jackson Drive. The selection was based on a combination of qualifications and price. The crossover pipeline was ready for water delivery by October 28, 2006. The break on P3 taught the Water Authority valuable lessons in pipeline condition assessment, emergency response, site restoration, design-build during a declared emergency, and the need to accelerate future pipe rehabilitation projects.
Lessons Learned from a 66-Inch PCCP Break in San Diego
On May 16, 2006, the Water Authority experienced a failure on the 66-inch diameter Pipeline 3 in Mission Trails Regional Park. The failure of Pipeline 3 also impacted Pipeline 4, prohibiting the delivery of all untreated water to three water treatment plants. An emergency contract was awarded to repair the damage at the site and to restore untreated water service. A 30-inch interconnection pipe between P3 and P4, two miles south of the break, restored 70 percent of the untreated aqueduct system capacity to the one million residents in the southern third of the county. The Water Authority prepared an action plan to restore capacity to customers affected by the break on P3. In July 2006, the Water Authority advertised a design-build contract to expedite construction of a 72-inch by 72-inch crossover in Jackson Drive. The selection was based on a combination of qualifications and price. The crossover pipeline was ready for water delivery by October 28, 2006. The break on P3 taught the Water Authority valuable lessons in pipeline condition assessment, emergency response, site restoration, design-build during a declared emergency, and the need to accelerate future pipe rehabilitation projects.
Lessons Learned from a 66-Inch PCCP Break in San Diego
Conner, Michael (author) / Crutchfield, Jeremy (author)
International Pipelines Conference 2008 ; 2008 ; Atlanta, Georgia, United States
Pipelines 2008 ; 1-9
2008-07-17
Conference paper
Electronic Resource
English
California , Failures , Infrastructure , Pipelines , Costs , Assets
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