The San Diego County Water Authority has completed a major rehabilitation project on the historic First Aqueduct in North San Diego County, it was announced Thursday.
The project renovated and replaced dozens of structures on two large- diameter pipelines which delivered the first imported water to the San Diego region in 1947 and remains a part of the regional water delivery system. The construction contract for the project was worth approximately $30 million.
https://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.png00Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngMike Lee2021-01-21 17:39:362021-01-21 17:41:25Water Authority Rehabilitates Historic ‘First Aqueduct’ Dating to 1947 in North County
The San Diego County Water Authority has completed a major rehabilitation project on the historic First Aqueduct in North San Diego County, it was announced Thursday.
The project renovated and replaced dozens of structures on two large-diameter pipelines which delivered the first imported water to the San Diego region in 1947 and remains a part of the regional water delivery system. The construction contract for the project was worth approximately $30 million.
“The First Aqueduct delivered imported water to our region for the first time more than 70 years ago, and it remains critical to water supply reliability for our region to this day,” said Gary Croucher, chair of the authority’s board of directors. “Coordination across water authority departments and collaboration with our member agencies allowed us to complete this extraordinarily complex project and ensure these pipelines operate for generations to come.”
https://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.png00Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngMike Lee2021-01-21 17:27:562021-01-21 17:41:10San Diego County Water Authority Completes First Aqueduct Project In North County
January 21, 2021 – The San Diego County Water Authority recently completed a major rehabilitation project on the historic First Aqueduct in North San Diego County. The project renovated and replaced dozens of structures on two large-diameter pipelines, including the historic Pipeline 1. Pipeline 1 delivered the first imported water to the San Diego region in 1947 and remains a vital part of the regional water delivery system. The construction contract for the project was worth approximately $30 million.
https://www.waternewsnetwork.com/wp-content/uploads/2019/10/WA-Square-Logo.jpg200200Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngMike Lee2021-01-21 11:55:422021-01-21 11:55:42Major Rehabilitation of First Aqueduct Complete
The San Diego County Water Authority recently completed a major rehabilitation project on the historic First Aqueduct in North San Diego County. The project renovated and replaced dozens of structures on two large-diameter pipelines, including the historic Pipeline 1. Pipeline 1 delivered the first imported water to the San Diego region in 1947 and remains a vital part of the regional water delivery system. The construction contract for the project was worth approximately $30 million.
Coordination with member agencies key to success
Over the past two years, four coordinated shutdowns in collaboration with member agencies and communities in North San Diego County ensured minimum impact to nearby neighborhoods and water users.
“The First Aqueduct delivered imported water to our region for the first time more than 70 years ago, and it remains critical to water supply reliability for our region to this day,” said Gary Croucher, chair of the Water Authority Board of Directors. “Through coordination throughout the Water Authority and collaboration with our member agencies, we completed this extraordinarily complex project to ensure these pipelines operate for generations to come.”
The project was completed on January 12 and will be presented to the Water Authority’s Board of Directors at their March meeting.
Proactive asset management program maintains reliable water supplies
The timely rehabilitation of the First Aqueduct is part of the Water Authority’s proactive asset management program. A key element of providing safe and reliable water supplies is continually assessing the agency’s 310 miles of large-diameter pipeline and making the upgrades necessary to continue serving the region. That work is funded through water bills paid by residents and businesses across the county to sustain the region’s $245 billion economy and quality of life.
The First Aqueduct project began in early 2019 and was one of the most complicated pipeline retrofits in the Water Authority’s history. The upgrades included replacing 14,500 linear feet of lining on the steel pipe sections of Pipeline 1, removing 16 associated structures and retrofitting 46 structures. All this work was accomplished while ensuring regional water service remained safe and reliable. In addition, redundant connections to six flow control facilities were added between the two pipelines to improve the aqueduct’s operational flexibility.
Collaboration between departments increased efficiency
The Water Authority’s Engineering Department provided construction management and inspection for the retrofit. Before the pipeline was returned to service, secondary tie-in connections to flow control facilities were added and crews removed bulkheads that were used to isolate pipeline sections during the rehabilitation work. Once the work was completed, staff inspected all work areas in the pipeline to ensure they were clear of construction debris.
After the bulkheads were removed, the Operations and Maintenance team disinfected the highly impacted work areas and then refilled the aqueduct to prepare for a second disinfection of both pipelines with chlorine. Water samples at locations throughout the aqueduct were collected and analyzed to ensure the system was safe to return to service. Once all the samples passed analysis, all flow control facilities were placed back in service and the aqueduct was returned to normal operations.
https://www.waternewsnetwork.com/wp-content/uploads/2021/01/First-Aqueduct-Rehab-PRIMARY-845x450-1.jpg450845Kristiene Gonghttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngKristiene Gong2021-01-21 11:35:002021-01-21 11:35:00Major Rehabilitation of First Aqueduct Complete
About 30 people attended the Jan. 12 La Jolla Development Permit Review Committee meeting to discuss the planned replacement of the La Jolla View Reservoir, many with concerns about the project.
DPR did not vote during the online meeting but scheduled another hearing for Jan. 19 (after the La Jolla Light’s deadline). The project also is scheduled to be heard at the Feb. 4 La Jolla Community Planning Association’s online meeting.
https://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.png00Chelsea Camposhttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngChelsea Campos2021-01-15 10:21:532021-01-15 11:03:47La Jolla Permit Reviewers Hear Safety and Environmental Concerns About La Jolla View Reservoir Project
A large group of agricultural organizations and water districts are calling for more federal support to address water infrastructure. More than 200 organizations sent letters to President-elect Joe Biden and congressional leadership, highlighting water issues in the West. The coalition points out the significant need for federal support in any future infrastructure or economic recovery package. Much of the Western water infrastructure is more than 50 years old and is in dire need of upgrades.
https://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.png00Kimberlyn Velasquezhttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngKimberlyn Velasquez2021-01-14 11:08:592021-01-19 06:20:57Industry Groups Urge New Administration to Address Water Infrastructure
Chula Vista, Calif. – In order to secure additional water sources for our customers, Sweetwater Authority initiated a controlled transfer of water from its two reservoirs on Monday, January 11, 2021.
https://www.waternewsnetwork.com/wp-content/uploads/2019/06/SWAbluelake-LR.png200200Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngMike Lee2021-01-11 12:37:292021-01-11 12:37:29Controlled Transfer of Water from Sweetwater Authority’s Loveland Reservoir Begins Today
Water tanks are a common sight across the hillsides and neighborhoods in our region. Helix manages, maintains and operates 25 tanks across the 50 square miles of our district to provide our 277,000 customers with water to their faucets on demand. Water tanks vary in size, shape, location and function, and they are the focus of our next virtual event.
https://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.png00Kimberlyn Velasquezhttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngKimberlyn Velasquez2021-01-07 10:23:382021-01-07 10:23:38Helix Water District: Join Us For Water Chats On Facebook Live On January 28
The proposed federal spending bill for 2021 includes funding for the Oroville Dam, Sites Reservoir Project and new snow measurement technology. If passed by Congress, part of the massive omnibus spending bill would allocate $1 billion towards restoration projects and drought relief efforts.
https://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.png00Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngMike Lee2020-12-29 09:07:422020-12-29 10:47:07Federal Spending Bill Includes Funding for Dam Repairs, Snow Measurement Technology
On the Arizona-California border, where the Colorado River pushes against Headgate Rock Dam, churning water pours into a wide canal and runs across the desert, flowing toward the farmlands of the Colorado River Indian Tribes.
This tribal nation is the largest single user of Colorado River water in Arizona, with rights to divert about 662,000 acre-feet per year, more than double the amount of water diverted for the state of Nevada.
https://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.png00Chelsea Camposhttps://www.waternewsnetwork.com/wp-content/uploads/2018/02/water-news-network.pngChelsea Campos2020-12-23 10:37:302020-12-29 10:14:42Colorado River Tribes Seek Approval From Congress to Put Water On the Market in Arizona