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 even at high tide. Almost immediately following the disaster that befell the first Tay Bridge, the North British Railway company set about developing plans for its reconstruction or replacement. During 1880, barely six months after the accident, the North British Railway (Tay Bridge) Bill for a construction of a new bridge was submitted to Parliament. The bill was reviewed by a special committee, chaired by Sir Lopes Massey Lopes, 3rd Baronet; Lopes drew attention to the substantial pressure for safety factors to be considered in light of the loss of the earlier bridge, including the need to examine the suitability