The City of Saskatoon, with Hamm Construction Ltd. as the main contractor, completed a non‑destructive condition assessment of the 750‑mm 4th Avenue Primary Watermain in September 2025. Pure Technologies, a Xylem brand, conducted a depressurized inspection using the tethered electromagnetic platform to evaluate the condition of prestressing wires in prestressed concrete cylinder pipe (PCCP). A total of 672 metres of pipe, 101 individual pipe sections were inspected, and electromagnetic data was analyzed to identify anomalies associated with broken wire wraps. In the absence of as-built records or manufacturer specifications, calibration relied on mathematical modelling informed by historical data and industry expertise. The project highlights the value of advanced robotics‑enabled condition assessment technologies in providing municipalities with actionable data, improving risk‑based decision‑making, and supporting system reliability for aging PCCP transmission mains.
