Securing Water Supply for Tomorrow: Enhancing Resilience and Sustainability of Bradford West Gwillimbury’s Transmission Main

The Town of Bradford West Gwillimbury’s (Bradford) has a current population of over 40,000 people, with growth forecasted to exceed well over 50,000 by 2031. Given these growth projections, the Bradford looks to take proactive measures to ensure system resiliency. The Bradford is primarily serviced by two municipal ground water wells, along with treated water from two critical pipelines installed in 2004. These are the Bradford Transmission Line (C301–600 mm [5 km]), and Innisfil-BWG Transmission Main (C303–500 mm [13.8 km]). In 2020, Bradford engaged Pure Technologies to perform an audit-level assessment. The solution included a structural engineering analysis of 18 km length of 500/600 mm diameter pre-stressed concrete bar-wrapped pipes. The engineering analysis concluded that the pipes have a low probability of reaching or exceeding their yield limit by the year 2045. In response, in 2022, Bradford engaged Pure Technologies for a detailed condition assessment and physical inspection of the transmission mains.