Who do I contact for more information?
EPCOR Drainage Services
November 2018 update
At the end of August, the tunneling machine unexpectedly encountered unidentified metal material that damaged the cutting teeth on the machine. While attempts were made to continue work at the site, it was determined that an alternate solution was required to continue the work without further damaging the tunneling machine.
The tunneling machine is stopped underneath 105 Street, approximately 15m south of Jasper Avenue. Due to the necessary repairs to the tunneling machine, it is now anticipated that the road closure on 105 Street south of Jasper Avenue will now extend until the end of April 2019. The work site on 105 Street north of Jasper Avenue will remain active until July 2019.
The current lane closures and work sites will remain unchanged.
EPCOR investigated and analyzed multiple options on how to move forward with the tunneling. This included drilling three boreholes to identify the location of additional metal objects, determine the potential options to access and repair the tunneling machine and engineer and design the final solution.
The boreholes were drilled in one meter intervals moving north from the location of the tunneling machine. This was done to understand if there are more objects underground with potential to impact the tunneling again, and to understand where normal ground conditions start. The first borehole confirmed more metal objects in the ground. The second and third boreholes showed no signs of metal objects. While not definitive, we believe the metal objects are part of an old construction dumpsite and are limited to this one area.
It was determined that in order to continue tunneling, the metals objects need to be removed and the teeth on the tunneling machine needed to be replaced to complete the last section of tunneling without further delay. This will be done by building a second, smaller access shaft within the current fenced worksite on 105 Street to remove the debris and gain access to the face of the tunneling machine and replace the teeth. The boreholes helped define the location for the new shaft and the area that will need to be cleared of material.
EPCOR has completed 2.4km of the 2.5km required tunneling for this project without ground issues. The final 67 meters of tunneling will be completed once these repairs have been made.
The size of the existing work site for Access Shaft #1 will not change. The traffic disruption on 105 Street south of Jasper Avenue will continue to be:
- 105 Street southbound will be closed from Jasper Avenue to the alley between the Academy Dental building and First Class Cleaners.
- Northbound traffic on 105 Street will be reduced to one lane from approximately 100m south of Jasper Avenue to Jasper Avenue.
- No parking along the east and west curb lanes of 105 Street from Jasper Avenue to approximately 100m south of Jasper Avenue.
- Left turn from 105 Street northbound onto Jasper Avenue heading westbound will remain open.
The construction areas will be fenced and/or marked as restricted areas. We will take every precaution to ensure public safety, and we also need your assistance in keeping children and pets a safe distance from the construction site and the equipment.
We thank you for your patience and understanding as we continue this necessary work.