Global professional services company, GHD, has been selected as the prime consultant for the rehabilitation projects of the Lewiston-Queenston Bridge and Rainbow Bridge.
The Niagara Falls Bridge Commission (NFBC) has awarded GHD the refurbishment project for the two crucial connections linking New York State, U.S., and Ontario, Canada. GHD will oversee detailed design, administration, and contract inspection, partnering with renowned bridge construction and preservation experts, Greenman-Pedersen Incorporated (GPI).
The Lewiston-Queenston Bridge and Rainbow Bridge have served as vital economic trade routes for more than 60 years. Over time, the humid conditions of the Niagara Gorge have resulted in early signs of corrosion on the bridges’ skewback connections. GHD and the NFBC aim to extend their operational lifespans to ensure a seamless flow of traffic and goods across the border.
Accessing the two structures presents significant challenges due to steep embankments and the swiftly moving waters of the Niagara River below. The work will involve working with 76.2-mm (3-inch) diameter anchor bolts, which are fixed and cannot be readily replaced. This will require a meticulous coating and reassembly process designed to keep the structures in service during the rehabilitation work.
