Cassils – Bowmanton – Whitla – 240 kV

Client: SNC Lavalin T&D

Length: 235 km

Completion Date: March 2014

Location: Brooks, AB / Medicine Hat, AB


  • 721 steel lattice towers
  • Multiple lines: 1034/1035L & 964L/983L twin bundle 1033 Curlew ASR with ½” OHSW and 48F OPGW, 923L/935L & 1051L/1052L twin bundle 477 Hawk for new tension spans
  • Construction occurred over three summer and winter seasons due to grass fire and environmental mitigations, and landowner reuqirements
  • Access and ROW construction and maintenance
  • Helicopter and conventional crane erection
  • Traditional Land Use and Historical Artifacts restrictions
  • 19 km (57 structures) constructed across Sand Hills

Highlight: Line construction paralleled the southern border of Canadian Forces Base (CFB) Suffield and required mitigation measures for unexploded ordinance.


We understand the time, energy, and importance of selecting the right utility construction contractor.

cassils Our Mission, Vision and Values guide and align us to being the contract of choice in all markets we enter. cassils This path took 40 years. cassils With over 2500 pieces of owned construction equipment, our capabilities are limitless. cassils The Forbes Bros. Group of Companies is now one of the largest private, family-owned businesses in our market.