Who
Great Lakes Water Authority
Where
Farmington Hills, Michigan, USA
What
54 inch prestressed concrete cylinder pipe watermain condition assessment and leak detection
Challenges
- Large diameter PCCP
- Background noise
- Traffic control
Who
Great Lakes Water Authority
Where
Farmington Hills, Michigan, USA
What
54 inch prestressed concrete cylinder pipe watermain condition assessment and leak detection
Challenges
- Large diameter PCCP
- Background noise
- Traffic control
Project Overview
KenWave was engaged by the Great Lakes Water Authority (GLWA), Dr. Graham Bell and HDR to test KenWave’s Dynamic Response Imaging™ (DRI) technology for condition assessment and leak detection of their 54 inch Prestressed Concrete Cylinder Pipe (PCCP) watermain in Farmington Hills, Michigan.
KenWave’s team completed the inspection over several days, assessing 0.473 miles (0.762 km) of PCCP. The inspection was completed without any
disruption to the service and using only temporary external sensor connections to the surface of the pipe via existing access points.
Results
- Delivered residual stiffness profiles of the 0.473 mile scope at a resolution of 7 feet.
- Area of the pipe was identified with significantly different dynamic response, which was later identified by the client to be carbon fiber repairs.