East Rift Bridge Widening
Thousand Islands Bridge International Crossing
Hill Island, Ontario to Wellesley Island, New York
The Federal Bridge Corporation Limited awarded a contract consisting generally of the reconstruction of the roadway approaches and the structural widening of the Thousand Islands Bridge, over the rift of the St. Lawrence River, connecting Hill Island, Ontario, Canada to Wellesley Island, New York, USA.
The East Rift Bridge Widening included, but was not limited to:
- supply, installation, maintenance and removal of temporary traffic control devices throughout the duration of the construction,
- structural widening at the east side of the East Rift Bridge,
- reconstruction of the roadway approaches at the north and south approaches of the East Rift Bridge.
Work on the U.S. side of the border was carried out by the contractor’s U.S. subcontractors and U.S. crew. The contractor coordinated all aspects of the work on both sides of the border.
The contractor was to plan the construction progress schedule so that all the work specified in the contract, including demobilization was completed in no more than 116 days following the beginning of work.
During the course of the work, the contractor encountered difficulties while attempting to dewater the foundations for the new structure. The contractor alleged that the soil and rock conditions actually encountered were different from those either indicated in the tender documents, or which could have reasonably been assumed.
Revay and Associates was mandated by the Federal Bridge Corporation Limited to prepare an independent expert report evaluating the contractor’s claims with respect to:
- the changed soil conditions,
- analysis of delays, and
- the quantum of damages claimed by the contractor.