Preserving capacity in the stormwater system during rain events helps reduce the risk of flooding and sewer backups. Nearly $42 million will be invested to reline 60 km of sanitary and combined sewer pipes, and seal and reline 3,000 manholes. In 2021:
Approximately 1,700 culverts and 5 kilometres of ditches were inspected and repaired to better manage the movement of stormwater. This involved flushing culverts and removing debris to ensure drainage can continue unimpeded.
676 manholes were sealed and relined, bringing the total to 966; and 9 km of sanitary and combined sewer pipes were relined, bringing the total to 56 km.
In addition, EPCOR’s internal SIRP Dashboard saw Phase 1 go live in August 2021, and Phase 2 completed in Q1 of 2022. This dashboard supports our operations by integrating multiple monitoring and control systems with geographic information system tools, and providing real-time data from a network of pipes, ponds and underground storage locations — increasing the ability to respond to flooding events. To support these efforts, sensors will be installed at 18 different monitoring stations. Design began on this part of the project in 2021, with completion expected by the end of 2022.
2021 also saw the initiation of emergency response plans for 16 high-risk sub basins in the river valley, two mobile emergency flood response trailers were acquired with equipment to provide flood protection for up to four pump stations in the event of a 1:500 year flood, and sandbagging attachment for the trailers to support the assembly of sandbags at a flood location.
Along with the assessment of flood risks provided to the City of Edmonton in 2020 on 1,300 city-owned properties, we provided similar data to the Edmonton Public School Board in 2021, which is now using the information to support their facility planning.
Award winning plan