Overview
As the population of the metropolitan areas in the United States continues to grow, the reliability of large diameter (>24 inches in diameter) water transmission pipelines become more critical than ever. In this course, we will discuss best practices for:
- Maintaining water transmission pipeline life cycle through condition assessment
- Proactive repair
- Renewal of various pipeline materials and types
This course will also provide insight into how different pipeline materials degrade over time. Join us to gain an insight on how to approach large diameter pipeline management.
Learning Objectives
- Explore various pipeline types and materials used in water transmission systems
- Examine design (new or renewal) considerations
- Study degradation mechanisms and failure modes
- Analyze potential pipeline failure based on material degradation and loading conditions
- Define features and structure of large diameter pipeline asset management programs
- Explore inspection types and technologies
- Determine inspection and repair solutions for various conditions
- Evaluate different contract mechanisms for assessment, rehabilitation, and renewal
Agenda
MONDAY, JULY 17, 2023
9:00 a.m. – 4:00 p.m. Central Time
Short breaks will be taken throughout the sessions
Water Transmission Pipeline Types
- Distribution vs. Transmission Pipelines
- Rigid vs. Flexible Pipes
- Concrete
- Metallic
- Steel
- Iron
- Legacy Cast Iron and Steel (riveted and lock bar)
- Polymer
Water Transmission Pipeline Location and Site Constraints
- Alignment, Right of Way and Permitting
- Design Loads
- Adjacent Buried Infrastructure
- Installation Conditions
Water Transmission Pipeline Degradation Modes and Failure Mechanisms
- Material Degradation
- Creep (for ambient temperature: polymers only)
- Fatigue (all materials)
- Corrosion or Chemical Degradation
- Mechanical Overloading
- Pressure and Pressure Transients
- External Loads
- Thrust
- Differential Settlement
- Design Methodologies
- Design Challenges
- Defects/Damage during Manufacture or Installation
Water Transmission Pipeline and Asset Management Programs
- Pipeline Inventory
- Pipeline Criticality
- Operational Considerations for Inspection and Assessment
- The Importance of Valve Operability for Pipeline Management
- Failure Management
- Control for Assessment, Inspection, and Operation
- Criticality vs. Ability for Inspection and Assessment
- Prioritizing Inspections and Repairs
- Planned/scheduled Inspections
- Unscheduled Inspections (aka breaks)
- Opportunistic Inspections (CIP, maintenance, or other construction activities)
- Case Studies
TUESDAY, JULY 18, 2023
9:00 a.m. – 12:00 p.m. Central Time
Short breaks will be taken throughout the sessions
Condition Assessment
- Inspection Methods
- Analysis of Inspection Results
- Risk Prioritization
- Probability of Failure
- Consequence of Failure
- Planning for the Next Inspection
- Fixed Frequency
- Deterioration Rate Estimated Re-inspection
- Case Studies
Replacement and Rehabilitation Considerations
- Operational Constraints
- Schedule Constraints
- Internal Access
- Ease of Excavation
- Performance Requirements
- Extent of Pipe Distress
- Tolerance for Diameter Reduction (capacity)
- Community and Political Factors
- Case Studies
Water Transmission Pipeline Rehabilitation Technologies
- Do Nothing
- Replacement
- Cured in Place Pipe (CIPP)
- Slip Lining
- Carbon Fiber Reinforced Polymer (CFRP)
- Steel Composite Liner (SCL)
- Spray in Place Pipe (SIPP)
- Coatings
- Mortar Lining
- Joint Seals
- Case Studies
Procurement
- Funding
- Projects vs. Programs
- Contract Mechanisms
- Specification Development
- Project Delivery Selection
- Case Studies
Instructors
Dr. Anna Pridmore, Senior Vice President of Municipal Infrastructure, Structural Technologies
Dr. Anna Pridmore is the Senior Vice President of Municipal Infrastructure for Structural Technologies. She has her PE in California and has over 18 years of interdisciplinary experience working with pipeline condition assessment and rehabilitation, with over 400 projects implemented to date. Anna is actively involved in technical committee activities including ASCE, AWWA, ASME, ASTM and DBIA. She assists clients with options analysis, technical support, engineering, specifications, and projects related to pipeline inspection and rehabilitation.
Graham E.C. Bell, PhD, PE, F.NACE, F.ASCE, Vice President – Technical Services – Pipeline Solutions, Structural Technologies
Dr. Graham E.C. Bell, P.E., is a Vice President of Technical Services for Underground Solutions for Structural Technologies. In addition, Dr. Bell has an appointment as a Research Associate Professor in the Department of Civil & Environmental Engineering at the University of Tennessee, Knoxville. Dr. Bell has more than 42 years of experience with pipelines and water infrastructure. Graham was the 2019 American Society of Civil Engineers Stephen D. Bechtel Pipeline Engineering Award. He is a Fellow of NACE International and ASCE. Dr. Bell is also a registered professional engineer in multiple states and certified as both a Corrosion and Cathodic Protection Specialist by AMPP (previously known as NACE International).