GeoMetrix was retained by Ardy Rigging on this large Constraint Induced Fracture (CIF) project to undertake a bridge load evaluation to accommodate the contractors temporary works as well as existing traffic on the bridge simultaneously. The existing structure on Highway 831 is a two girder bridge over the North Saskatchewan River and is therefore considered fracture critical. Repairs were required to the CIF critical details to prevent propagation of fatigue cracks.
A bridge load evaluation was undertaken to determine the remaining load capacity available to support the scaffolding, miscellaneous equipment, and personnel while maintaining traffic on the bridge at all times during the repairs.