Approximately 375 metres of the storm sewer located in MacKinnon Ravine needs to be rehabilitated. The rehabilitation work will include trenchless methods to reduce impacts on the natural environment and the construction footprint. However, excavations will be required in some areas. EPCOR is committed to minimizing excavations when possible.
The work will be done at three different locations.
Work Area #1 (blue line on map)
A pit will be excavated in the ravine just east of 149 Street and north of Summit Drive. From this pit, a new pipe will be inserted inside the deteriorated pipe and grouted in place. The total length of this repair is approximately 110 metres.This work is anticipated to begin in late June and expected to be completed by October 2020.
Work Area #2 (orange line on map)
The total length of this repair is approximately 157 metres of existing pipe under the ravine, east of 149 Street. It is expected that Work Area #2 will have minimum to no excavation work required. The work is scheduled to begin the week of June 8th and is expected to be completed by the end of August 2020.
Work Area #3 (yellow line on map)
A pit will be excavated at the paved trail in the ravine, north of Summit Drive and approximately 200 metres east of 149 Street. From this pit, a new pipe will be inserted inside the deteriorated pipe and grouted in place. Depending on the exact amount of deformation and damage in the existing pipe, additional excavations may be required to allow insertion of the new pipe inside the deteriorated pipe. This work is anticipated to start in August and anticipated to be completed by the end of 2020.