Firth of Tay Firth of Tay The Firth of Tay (Scottish Gaelic: Linne Tatha) is a firth in Scotland between the council areas of Fife, Perth and Kinross, the City of Dundee and Angus, into which Scotland's largest river in terms of flow, the River Tay empties. The firth has a maximum width of at Invergowrie. Two bridges span the firth, the Tay Road Bridge and the Tay Rail Bridge. The firth has one major island, the marshy Mugdrum Island. The Firth of Tay in Antarctica was discovered in 1892-93 by Captain Thomas Robertson of the Dundee whaling expedition and named by him
Tay Rail Bridge Tay date to 1854 but it was not until 15 July 1870 that the North British Railway (Tay Bridge) Act, received royal assent. On 22 July 1871, the foundation stone of the bridge was laid. The bridge was designed by engineer Thomas Bouch, who received a knighthood following the bridge's completion. The bridge was a lattice-grid design, combining cast and wrought iron. The design had been used by Thomas W. Kennard in the Crumlin Viaduct in South Wales in 1858, after the use of cast iron in The Crystal Palace. The Crystal Palace was not as heavily loaded as a