Northeast
MacMillan Pier Floating Deck
During its first year of service, the dock failed during a winter storm. Over the next two years, SGH consulted on the investigation and rehabilitation of the structure.
What Works, What Doesn’t, What’s Next
Water Research Foundation, Prestressed Concrete Cylinder Pipe Condition Assessment
Scope/Solutions
Prestressed concrete cylinder pipe (PCCP) has been used for water transmission systems for many years. Utilities need effective means to identify distressed or deteriorated pipe, estimate levels of distress, analyze failure risks, and verify findings in order to effectively repair or replace these pipes before they rupture and disrupt operations. SGH received a grant from the Water Research Foundation to evaluate existing and developing technologies and to synthesize findings into a Best Practices Manual for utilities.
The objectives of the Best Practices Manual included the following:
- Serve as a manual for condition assessment, monitoring, and remaining service life/failure margin analysis of PCCP
- Provide an overview of available technologies and assistance to utilities in identifying the most appropriate technologies for their system
- Provide an understanding of the limits of applicability of the available technologies and trends in future developments in PCCP condition assessment and determination of failure margin and repair priority
SGH’s research to support Water Research Foundation’s goal of achieving these objectives included the following:
- Performed a literature review integrating published experiences and existing technologies for PCCP condition assessment and monitoring
- Developed an industry survey and compilation of responses from water utilities, technology stakeholders, and consultants
- Organized a workshop for industry representatives to discuss experiences and needs
- Evaluated existing technologies
- Synthesized findings into a Best Practices Manual for utilities
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Project Summary
2011
Completion Date
Solutions
Repair & Rehabilitation
Services
Structures | Advanced Analysis | Applied Science & Research
Markets
Infrastructure & Transportation
Client(s)
Water Research Foundation
Specialized Capabilities
Repair & Strengthening | Buried Infrastructure | Research Partnerships
Key team members
Additional Projects
Northeast
Railroad Bridge over Otter Creek
SGH helped them by evaluating an alternate design and construction sequence to allow them to complete the project with limited weekend shutdowns of the railroad operations.