Out with the old and in with the new infrastructure: Priestly Demolition completes Highway 89 bridge demolition

Photos by Ian McIntosh - IGM Photography

A 77-year old bridge over Highway 400 was demolished on Oct. 1, making way for new and improved infrastructure.

The original two-lane Highway 89 overpass, a single-span cast-in-place with boxed girders and steel trusses, is being replaced to accommodate the future widening of Highway 400.

A rapid demolition by Priestly Demolition Inc. completed the the rapid demolition in record time. Approximately 150 truckloads of concrete were hauled away from the site over the week, along with steel and rebar.


Equipment used:

  • Volvo 700 with processor
  • Five 50-ton excavators, – usual combo of hammers, grapples, buckets and shears and processors
  • Two 50-ton excavators with second-member shears
  • Two six-yard front loaders
  • One skidsteer – bucket and sweeper

Additional work on Highway 400 will include increasing exit ramps to two lanes. The commuter parking lot will be moved from the southeast side of the bridge to the vacant area northwest of the highway.

Further improvements will also be made to drainage, lighting and other structures and realignments will also be made to Reive Boulevard and private entrances on Reive Boulevard and Highway 89.


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