St. Andrews Lock and Dam Comprehensive Detailed Inspection

In order to meet the technical requirements and project timelines, delivery of the assignment was a “One Company” collaborative effort led out of the Winnipeg office. Staff from other offices with specific technical expertise related to dam operations, structural/seismic evaluations, and bridge inspections were instrumental in completing the tasks to date and were key in production of the final deliverables.

Here are some facts about the dam and bridge (courtesy of the Government of Canada):

• the dam and bridge is 270 metres long
• it crosses the Red River at Lockport
• there are 7 concrete piers
• each pier is 15 meters high
• steel trusses that are about 40 metres long span between the piers
• the piers are joined at the bottom by a 6-metre-high by 11-metre-wide concrete sill or fixed dam
• there are 15 steel frames per span
  • the exception is that one span has 14 frames and a fish ladder so that fish can migrate through the dam
• The roadway over the dam also goes across the lock
• The speed limit is 50 km/h and the road has a load restriction of 36 tonnes