Client: City of Calgary – Water Resources
Value: CA$37.47M

Designed and constructed the tunneling shafts of active dewatering of phase A & B in the district of Montgomery, City of Calgary.Bowness2-1300x700
PHASE 1A:

Construction of two caisson shafts, up to 20m deep on each side of the Bow River, in the district of Montgomery, City of Calgary. Ward and Burke Microtunnelling Ltd, designed and constructed the tunnelling shafts and both were constructed without the use of active dewatering. The MTBM launch shaft was 10.2m x 8.8m ID, while the reception shaft was 7m ID. The construction of the shafts was undertaken simultaneously and despite severe weather conditions, of up to minus 20 degrees Celsius, both were successfully completed.Bowness_3-1300x700
PHASE 1B:

Construction of ten caisson shafts, average 15m deep, on the western limits of the Bow River, and parallel to 16th Ave, in the City of Calgary. Ward and Burke Microtunnelling Ltd.

  • Designed and constructed the tunnelling shafts which were constructed without the use of active dewatering.
  • The caisson shafts ranged from 5.00m to 10.38m in internal diameter and
  • A number of the monolithic caisson shafts were designed as permanent structures.