Longest Canadian PipeDiver Inspection: 18.6 km Electromagnetic Inspection for the City of Winnipeg

The City of Winnipeg retained Pure Technologies, a Xylem brand (Pure Technologies), to conduct a condition assessment of the prestressed concrete cylinder pipe (PCCP) on the 1,650-mm Branch II Aqueduct in Winnipeg, Manitoba. On September 21, 2022, Pure Technologies used its proprietary PipeDiver platform, a non-destructive electromagnetic inspection technology to locate and identify pipes that have broken prestressing wire wraps. The inspection covered a cumulative distance of 18.63 km and spanned a total of 3,826 pipes from the Deacon Water Treatment Plant to the South Cell of the Wilkes Reservoir. Analysis of the data obtained during the inspection determined that 33 pipes in the 1,650-mm Branch II Aqueduct displayed an electromagnetic anomaly consistent with prestressing wire damage, ranging from 5 to 20 broken wire wraps.