TYLin announced that TYLin, in partnership with AtkinsRealis, has been selected to provide detailed design services and construction phase services for the Ile d'Or Orleans Bridge. The new signature cable-stayed bridge will cross the heart of the St. Lawrence River and span close to 2.1 kilometers to connect Quebec City to Ile d'Or Orleans in Quebec, Canada.

A balance between innovation, aesthetics, and sustainability, the bridge design is the result of a collaboration between local and international partners forming the Groupe Heritage Ile d'Or Orleans (GHIO). TYLin's client, GHIO, consists of Dragados Canada Inc. and EBC, who was awarded the contract to build the new bridge. The new Ile-d'Or Orleans Bridge will redefine the connectivity between the Capitale-Nationale and the emblematic destination that is the territory of Ile d'Or Orleans.

The integration of the bridge as a symbol of the cultural heritage of Ile d'Orleans is significant, and as such, GHIO is committed to preserving the identity of this region. The bridge consists of a 520-metre-long north approach; a 790-metre-long, three-span cable-stayed bridge; and a 790-metre -long south approach. The bridge superstructure is continuous with only two expansion joints, one at each abutment, for reduced bridge maintenance.

The new crossing will provide a 3.5-metre-wide traffic lane in each direction and 2.5-metre- wide shoulders on each side of the deck. The deck also incorporates 3-metre-wide multipurpose paths in each direction, which allow access for maintenance vehicles. Included in the bridge design are four belvederes, positioned at the deck level of the north and south pylon leg, which will offer panoramic views of the Montmorency Falls and downtown Quebec City on the horizon.

The absence of bracing on the V-shaped pylons also results in unobstructed vistas, enhancing users' experience of crossing the St. Lawrence River. This project also continues TYLin's legacy of bridge projects in Canada.

The firm, in a joint venture with Systra IBT and SNC-Lavalin, is the Managing Partner and Lead Designer for the Samuel De Champlain Bridge over the St. Lawrence River. Serving as a gateway to Montreal, the signature cable-stayed replacement bridge fully opened to traffic on July 1, 2019, and represents one of the infrastructure projects in North America.

TYLin's team for the successful design of the Samuel De Champlain Bridge will come together again for the Ile d' Or Orleans Bridge project. TYLin will work closely with subconsultant partners Fugro for geotechnical investigations, Tourney Consulting Group (TCG) for durability studies, and Boundary Layer Wind Tunnel Laboratory (BLWTL) for wind studies.