Lethbridge Viaduct - Specifications

Specifications

• Length: 1,623.86 m (5,327.625 ft)
• Height: 95.7 m (314.0 ft) above river bed
• Materials: 12,400 tons of steel
• Deck spans and lengths:
  • 44 plate girder spans each of 20.4 m (66.93 ft)
  • 22 plate girder spans each of 30.15 m (98.92 ft)
  • one riveted lattice-truss of 32.6 m (106.96 ft)
• Rigid braced steel towers: total of 33

The second bridge over the Oldman River, near Monarch, is 576 m (1,890 ft) long and 45.7 m (150 ft) high.