The first structure at this location was completed at ten AM on November 7, 1868 when bridge engineer Thomas C. Clarke tested the structure with the crossing of locomotive engines. The bridge and a total of two miles of track formed a new connection between the Chicago, Burlington and Quincy Railroad and the Hannibal and St. Joseph Railroad. Built by the Quincy Bridge Company and its president Nathaniel Bushnell, the bridge was a swing span, wrought iron Pratt truss which cost $1,500,000.[3] The 362-foot long swing truss created two spans of 181 feet. Sixteen fixed spans using a Whipple truss complete the river crossing to make the bridge 3,189 feet long (2 spans at 250 feet, three spans at 200 feet, and eleven spans at 157 feet). A second bridge across Quincy Bay (the waterway between present-day Quinsippi Island and the city of Quincy) included another draw span.[4][5]