Water Main Rehabilitation
Water Main Rehabilitation
The nation’s water infrastructure, especially the underground pipes, is aging and in need of significant reinvestment. Like many of the roads, bridges, and other public assets on which the country relies, most of our buried water infrastructure was built 50 or more years ago, in the post-World War II era of rapid demographic change and economic growth. In some older urban areas, many water mains have been in the ground for a century or longer. Given its age, it comes as no surprise that a large portion of U.S. water infrastructure is approaching, or has already reached, the end of its useful life.
Resources
Pipe Bursting
It was common practice in the last century to design pipeline systems for 50-year service lives. However, in the interest of keeping rates affordable for customers, many water systems did not always charge the full cost of service, which includes pipeline renewal and replacement. Although many factors influence a pipeline’s longevity (e.g., soil corrosivity, installation conditions, backfill material, compaction, and pressure surge events), all water pipelines will need to be replaced at some point.
Pipe bursting is a well-established trenchless method for replacing an existing pipeline with a new pipeline that is the same or larger diameter.
Structural Classifications of Pressure Pipe Linings
This Committee report focuses on the primary issues of problem definition and quantitative tests to facilitate product system structural classification for pressure pipe renewal applications.
This report expands on the definitions of Class I through Class IV pipe linings providing engineering guidance for nonstructural systems typically used for pipe protection to fully structural replacement requirements.
Technical Resources
Reports
Manuals
AWWA Standards
M9 Concrete Pressure Pipe
Design, selection, specification, installation, transportation, and testing of concrete pressure pipe in water service.
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M23 PVC Pipe — Design and Installation
This manual provides the user with both general and technical information to aid in design, procurement, installation, and maintenance of PVC pipe and fittings.
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M28 Rehabilitation Of Water Mains
This operations manual provides guidance on selecting the best water-main rehabilitation techniques for your water distribution system.
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M45 Fiberglass Pipe Design
This manual provides the reader with both technical and general information to aid in the design, specification, procurement, installation, and understanding of fiberglass pipe and fittings.
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M55 PE Pipe – Design and Installation
Provides both technical and general information to aid in the design, specification, procurement, installation, and understanding of the high-density polyethylene (HDPE) pipe and fittings.
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AWWA C305-18 CFRP Renewal And Strengthening Of Prestressed Concrete Cylinder Pipe (PCCP)
The purpose of this standard is to provide the minimum requirements for material selection, design, installation, and quality control and quality assurance of the CFRP renewal and strengthening of PCCP.
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AWWA C602-17 Cement-Mortar Lining Of Water Pipelines In Place—4 In. (100 Mm) And Larger (PDF)
This standard describes the requirements for the materials and application of a cement-mortar lining to the inside surface of 4-in. (100 mm) and larger new and old steel, ductile-iron, and cast-iron water pipelines that have been previously installed, as well as related work.
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AWWA C605-21 Underground Installation Of Polyvinyl Chloride (PPV) And Molecularly Oriented Polyvinyl Chloride (PVCO) Pressure Pipe And Fittings
This standard describes underground installation and pressure testing requirements for polyvinyl chloride (PVC) and molecularly oriented polyvinyl chloride (PVCO) pressure pipe and fittings…
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AWWA C651-14 Disinfecting Water Mains (PDF)
This standard describes essential procedures for the disinfection of new and repaired potable water mains.
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AWWA C622-19 Pipe Bursting Of Potable Water Mains 4 in. (100 mm) to 36 in. (900 mm)
This standard describes the materials and procedures for rehabilitation of existing potable water pipelines 4 in. (100 mm) to 36 in. (900 mm) in diameter using pipe bursting.
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Events With a Focus on Water Main Rehabilitation
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Related Resources
Asset Management
The greatest public health achievement of the 20th century was the construction of reliable water and wastewater systems. The water and wastewater systems that serve the US have worked around the clock for over 100 years. The continued vitality and resiliency of American cities relies on this infrastructure.
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Consider Pipe Bursting for Water Main Rehabilitation
According to AWWA, investment needs for buried drinking water infrastructure in the United States are projected to total more than US$1 trillion nationwide over the next 25 years. The costs associated with replacing aging pipelines can be challenging for some water utilities, leaving them to operate pipelines well beyond their useful lives, but emergency repairs are more expensive than proactive maintenance, and they are also less safe and more troublesome for utility staff and the public.
Read the Article
2023 Water Main Break Rates Study
Since 2012, the use of PVC pipe across North America has grown significantly. Discover why in the Utah State Study.
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Replace Water Main Faster with Static Pipe Bursting
A Florida city recently completed an emergency water main replacement project under a scenic byway within strict time constraints.
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Consider the Capabilities of Flexible Fabric-Reinforced Pipe
According to AWWA, US investment needs for buried drinking water infrastructure total more than $1 trillion nationwide over the next 25 years. With various technologies available, water utilities have effective, potentially cost-saving options for pipeline rehabilitation, including flexible fabric-reinforced pipe.
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Maintenance Management for Water Utilities
Regular maintenance of water utility equipment and facilities is absolutely critical to the utility’s mission of delivering safe drinking water nonstop, year in and year out. This book will show water utilities of all sizes how to develop and operate an efficient, cost-effective maintenance management program.
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AWWA Policy Statements
AWWA’s policy statements are brief statements on protecting and improving water supply, water quality, management, and the interests of the public and the environment. They are written by consensus, subject to review and comment by AWWA committees, councils, and members. Because they represent AWWA’s position on these matters, they are approved by the AWWA Executive Committee of the board of directors.
Technical Committee Engagement
AWWA members are recognized globally for their industry expertise and their generosity in sharing that expertise for a better world through better water. AWWA members participate in committee activities, developing conference programs, writing technical manuals, developing standards, creating educational content and contributing to AWWA publications. Committee members primarily interact through conference calls, emails, and face to face meetings at conferences and events.
Water Main Rehabilitation
Condition Assessment
Asset Management
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