The San Diego County Water Authority and its contractors have completed essential repairs on a section of Pipeline 5 in North San Diego County between Fallbrook and Escondido. The repairs included installing 156 feet of carbon fiber liner inside the 96-inch pre-stressed concrete cylinder pipe to extend its service life. The pipeline was returned to normal service over the weekend – ahead of the original schedule.
The San Diego County Water Authority and its contractors have completed essential repairs on a section of Pipeline 5 in North San Diego County between Fallbrook and Escondido. The repairs included installing 156 feet of carbon fiber liner inside the 96-inch pre-stressed concrete cylinder pipe to extend its service life. The pipeline was returned to normal service over the weekend – ahead of the original schedule.
The lining for Pipeline 5 is a material made from layers of carbon and glass fibers combined with polymers that are engineered to efficiently and effectively improve the structural integrity of large-diameter pipelines.
“The timely upgrade to this section of Pipeline 5 is part of the Water Authority’s proactive asset management program,” said Jim Fisher, director of operations and maintenance at the Water Authority. “A key element of providing a safe and reliable water supplies is continually assessing our 310 miles of large-diameter pipeline and making the upgrades necessary to continue serving the region.”
The essential repairs followed similar repairs on nearby Pipeline 4 last year. The Pipeline 5 project started in early April, about the time most Water Authority employees transitioned to working at home due to the COVID-19 pandemic.
“The crews adapted quickly to implement safeguards to protect their health while moving forward with the critical repairs,” said Peter Milligan, engineer at the Water Authority. “We made sure to limit the number of people on-site, wear masks, and maintain a safe physical distance inside where possible.”
The asset management program uses cutting-edge technologies, like carbon fiber lining, to monitor and maintain the condition of important regional water infrastructure. Making preventative repairs ensures that regional water service will continue uninterrupted.
Pipeline 5 was built in 1982 and is part of the Water Authority’s Second Aqueduct, which consists of Pipelines 3, 4 and 5. Along with Pipeline 3, Pipeline 5 delivers untreated water from Lake Skinner in southwest Riverside County to the Lower Otay Water Treatment Plant in southern San Diego County.
An analysis to determine a long-term solution to maintain the Second Aqueduct in North San Diego County is underway.
A new poll recently released by the Value of Water Campaign shows that 84% of American voters want state and federal leaders to invest in water infrastructure. The near-unanimous support amid the COVID-19 pandemic reveals that voters value water and want elected officials to prioritize investing in infrastructure — specifically, drinking water and wastewater infrastructure.
For the fifth year in a row, the Value of Water Campaign poll surveyed over 1,000 American voters for the annual Value of Water Index. The poll asked voters how the nation should solve infrastructural issues and which priorities it should meet. Support for water infrastructure investment cuts across demographic, political and geographic divisions.
The actual repair work for a San Diego County Water Authority pipeline in Moosa Canyon is now complete, although a shutdown to remove the isolation bulkheads will be needed and the SDCWA pipeline will be shut down May 4-11.
“The carbon fiber repair has been completed, and we’re preparing for a shutdown of Pipeline 5, May 4, to remove the internal steel bulkheads,” Neena Kuzmich, CWA engineering manager, said. “After we remove the bulkheads Pipeline 5 will resume normal operations.”
The leak has been stopped, and there is no danger from flooding, said Roxanne Rountree, a spokeswoman for the Eastern Municipal Water District.
But until work is completed, customers in Moreno Valley, Lake Mathews, Orangecrest, Mission Grove, Woodcrest, Air Force Village West, Hillcrest and Lake Hills and on the on March Air Reserve Base were asked to help ensure reserves are not eaten up.
The request was made by the Metropolitan Water District of Southern California and the Eastern, Western and Temescal Valley water districts.
The San Diego County Water Authority is making progress on the construction of a new 5 million gallon underground reservoir in Mission Trails Regional Park. The underground reservoir is also known as a flow regulatory structure.
Classified as a “critical or essential” infrastructure project during the COVID-19 response, the project is moving forward to stay on schedule.
The view from high up in Del Mar’s 17th Street lifeguard station is a visit-California poster: a sweeping curve of sand, dramatic coastal bluffs, a welcoming sea. What scientists see, though, is somewhat more sobering: the Pacific Ocean as seething menace, a marine battering ram born of climate change that will inexorably claim more and more land and whatever sits upon it.
With rising seas now posing a greater threat to California’s economy than wildfires or severe earthquakes, state authorities are cautioning those who live along some of the Golden State’s famous beaches to do what they’re loath to do: retreat. Turn their backs to the sea and move homes, businesses, schools and critical infrastructure out of harm’s way.
The ocean could rise two to ten feet by 2100, imperiling $150 billion in property, according to state estimates, and erasing two-thirds of California’s beaches.
The San Diego County Water Authority is making progress on the construction of a new 5 million gallon underground reservoir in Mission Trails Regional Park. The underground reservoir is also known as a flow regulatory structure.
Classified as a “critical or essential” infrastructure project during the COVID-19 response, the project is moving forward to stay on schedule. Water Authority and contractor staff are taking heath protection precautions to maintain public safety by following COVID-19 safety guidelines, including wearing face masks, using hand sanitizers, and disinfecting fencing, work tools and equipment.
Recent work includes the installation of temporary office trailers at the east end of Clairemont Mesa Drive in the City of San Diego, delivery of materials, installation of eight-foot fencing around the major construction sites and placement of silt fencing around environmentally sensitive areas.
Topsoil is being removed and saved where digging is planned. This topsoil will be placed back in its original location after construction is done to encourage plant re-growth, help hold water and prevent soil erosion. Construction crews are working Monday through Friday between 7 a.m. and 7 p.m.
Some trails in the western portion of the park are closed to ensure the safety of the public and essential workers on site. Several trail closure signs with maps have been strategically placed to help park users navigate the trails and take detours to avoid the construction area.
The project is in the western part of Mission Trails Regional Park near the Tierrasanta community. It includes building the new underground covered reservoir, a flow control facility and pipeline interconnections to upgrade the system that delivers water to treatment plants serving the central and southern areas of San Diego County. The project is anticipated to be complete in early 2022.
Seventeen above ground steel tanks and two underground concrete reservoirs play a vital role in the Vallecitos Water District’s mission to provide clean, safe, and reliable water to its 105,000 district residents. Maintenance and cleaning of the tanks and reservoirs is a critically important process.
Without regular washouts, tanks can accumulate large amounts of sediment, prohibiting proper inspections.
Two bipartisan draft water infrastructure bills unveiled this week by the Senate environment committee are a good start but will need even more funding in the wake of the coronavirus pandemic, water agencies and other groups said Wednesday.
