Who
Washington Suburban Sanitary Commission
Where
Maryland, USA
What
42 inch steel, ductile iron and cast iron condition assessment and leak detection
Challenges
- Extensive logistics and manpower during segment-to-segment transitions
- Long segment lengths
- Background noise
Who
Washington Suburban Sanitary Commission
Where
Maryland, USA
What
42 inch steel, ductile iron and cast iron condition assessment and leak detection
Challenges
- Extensive logistics and manpower during segment-to-segment transitions
- Long segment lengths
- Background noise
Project Overview
KenWave was engaged by HSA, HDR and Washington Suburban Sanitary Commission (WSSC) to utilize KenWave’s Dynamic Response Imaging™ (DRI) technology for condition assessment and leak detection on 5.7 miles (9.17 km) of 42 inch Steel, Ductile Iron (DI) and Cast Iron (CI) watermain in Maryland, USA.
KenWave’s team completed the inspection over several days, assessing 5.7 miles of the WSSC watermain. The inspection was completed without any disruption to service, and by using only temporary external sensor connections to the surface of the pipe via existing access points.
Results
- Residual wall thickness profiles of the 5.7 mile scope were generated with a resolution of 15-20 feet.
- The residual wall thickness profiles of the watermain were given to the WSSC in the form of a color-coded graph to easily illustrate the severity of the degradation in the pipeline.
- Any areas of interest were indicated to the WSSC.
- Leak detection was performed simultaneously with condition assessment on the steel, DI, and CI watermain.