River Tay River Tay The River Tay () is the longest river in Scotland and the seventh-longest in the United Kingdom. The Tay originates in western Scotland on the slopes of Ben Lui (), then flows easterly across the Highlands, through Loch Dochart, Loch Iubhair and Loch Tay, then continues east through Strathtay (see Strath), in the centre of Scotland, then southeasterly through Perth, where it becomes tidal, to its mouth at the Firth of Tay, south of Dundee. It is the largest river in the UK by measured discharge. Its catchment is approximately , the Tweed's is and the Spey's is
Tay Rail Bridge raised and put before a select committee of the House of Commons on 10 May 1881. With little alteration or suggestions issued, this was soon passed. During November 1881, a contract for the new bridge's construction was awarded to Messrs William Arrol & Co of Glasgow. For the new bridge's design, Messrs Barlow elected to refrain from using any untested engineering principles, instead choosing to strictly adhere to established methodology. The second Tay Bridge is a straightforward pier-and-lattice girder bridge; aside from its considerable length, it lacks any distinguishing characteristics. It has an overall length of 10,780 feet, which is