Newport-on-Tay trains had ceased to run beyond Newport-on-Tay East station to Tayport on 22 May 1966 so that the railway line could be breached to build the bridge's southern approach road. The Dundee – Newport ferry also closed promptly later in 1966 on the opening of the Tay Road Bridge. However, the ferry terminal buildings and slipways still survive at the foot of Boat Hill as a boat repair yard. An excavation carried out by Headland Archaeology in the farm of North Straiton near Newport-on-Tay uncovered part of a Bronze Age cremation cemetery and a line of postholes. Five human cremations
Tay Bridge disaster were now constructed by sinking brick-lined wrought-iron caissons onto the riverbed, and filling these with concrete. To reduce the weight these had to support, Bouch used open-lattice iron skeleton piers: each pier had multiple cast-iron columns taking the weight of the bridging girders. Wrought iron horizontal braces and diagonal tiebars linked the columns in each pier to provide rigidity and stability. The basic concept was well known, but for the Tay Bridge, the pier dimensions were constrained by the caisson. For the higher portion of the bridge, there were 13 girder spans. In order to accommodate thermal expansion, at only