The Regional Municipality of Peel (Peel Region) in Southern Ontario, Canada, has been proactively performing condition assessments of their Prestressed Concrete Cylinder Pipe (PCCP) pipelines since the mid 2000’s. PCCP condition assessment programs are designed to ensure safe and reliable water service by establishing the rehabilitation requirements necessary to avoid watermain failures. Peel Region has established a comprehensive condition assessment protocol based on best practices that includes the following components:

• Electromagnetic inspection to quantify and locate broken prestressing wires in the PCCP.

• Inline acoustic inspection to identify leaks and air pockets tools.

• Internal visual inspection to identify cracks, spalls, and other visible signs of deterioration, and to assess the condition of the pipe joints.

• Three-dimensional mapping survey to collect detailed GIS information for X, Y, Z mapping.

• Structural Analysis and degradation modelling to evaluate the risk of failure based on the condition assessment data, including:

Design check of the pipe specifications to determine if the pipe is adequate for the operating conditions.
Finite Element Analysis to determine which pipes need to be repaired and when based on number of broken wire wraps and pipeline pressures.
•Valve assessment of the inline valves to confirm operability and rehabilitation needs.

This paper presents the challenges, findings and deliberation of the East Brampton (EB) 1050 Feedermain condition assessment. The EB1050 Feedermain which is comprised of 1050-millimeter diameter C301-L and is 6.2 km in length. The feedermain conveys potable water from the Beckett Sproule Pumping Station to the East Brampton Pumping Station and Reservoir. In addition to the detailed condition assessment of the feedermain, there was an external investigation of one pipe determined through electromagnetic inspection to have a combination of broken wire wraps and potential cylinder deterioration. This involved exposing the pipe, performing a visual external inspection in-situ, and further forensic analysis after the pipe was removed to verify the extent of deterioration. The results of this condition assessment have allowed the Region to continue confidently utilizing this feedermain.


Access the Conference Proceedings Paper on ASCE Library 

The Regional Municipality of Peel (Peel Region) in Southern Ontario, Canada, has been proactively performing condition assessments of their Prestressed Concrete Cylinder Pipe (PCCP) pipelines since the mid 2000’s. PCCP condition assessment programs are designed to ensure safe and reliable water service by establishing the rehabilitation requirements necessary to avoid watermain failures. Peel Region has established a comprehensive condition assessment protocol based on best practices that includes the following components:

• Electromagnetic inspection to quantify and locate broken prestressing wires in the PCCP.

• Inline acoustic inspection to identify leaks and air pockets tools.

• Internal visual inspection to identify cracks, spalls, and other visible signs of deterioration, and to assess the condition of the pipe joints.

• Three-dimensional mapping survey to collect detailed GIS information for X, Y, Z mapping.

• Structural Analysis and degradation modelling to evaluate the risk of failure based on the condition assessment data, including:

- Design check of the pipe specifications to determine if the pipe is adequate for the operating conditions.
- Finite Element Analysis to determine which pipes need to be repaired and when based on number of broken wire wraps and pipeline pressures.

•Valve assessment of the inline valves to confirm operability and rehabilitation needs.

This paper presents the challenges, findings and deliberation of the East Brampton (EB) 1050 Feedermain condition assessment. The EB1050 Feedermain which is comprised of 1050-millimeter diameter C301-L and is 6.2 km in length. The feedermain conveys potable water from the Beckett Sproule Pumping Station to the East Brampton Pumping Station and Reservoir. In addition to the detailed condition assessment of the feedermain, there was an external investigation of one pipe determined through electromagnetic inspection to have a combination of broken wire wraps and potential cylinder deterioration. This involved exposing the pipe, performing a visual external inspection in-situ, and further forensic analysis after the pipe was removed to verify the extent of deterioration. The results of this condition assessment have allowed the Region to continue confidently utilizing this feedermain.


[Access the Conference Proceedings Paper on ASCE Library](https://ascelibrary.org/doi/10.1061/9780784483626.050) 

Tales from the East Brampton 1,050 mm Transmission Feedermain Condition Assessment

Papers from sessions of Pipelines 2021, held virtually August 3–6, 2021. Sponsored by the Utility Engineering and Surveying Institute of ASCE. The conference provides a forum for pipeline engineers and practitioners from all around the world to share their experiences in meeting the challenges of today's pipeline infrastructure. This premier industry event has become the conference of choice for utility and pipeline owners, design and consulting engineers, contractors, manufacturers, suppliers, students, educators, researchers, and pipeline professionals. The conference includes surveying as it relates to pipeline and utility projects. This event will provide a dynamic and inspiring venue for participants to share and gain valuable knowledge related to planning, designing, constructing, renewing, operating, managing and maintaining the pipeline assets.

[Paper Proceedings](https://doi.org/10.1061/9780784483602)

Conference DOI: https://doi.org/10.26226/m.6454f875c8d4320012b71046