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
Jefferson City Bridge . The diameter of the pivot pier was . The pillars at the south entrance to the bridge are still in place, now a part of Rotary Park, overlooking the river at the end of Bolivar Street. Jefferson City Bridge The Jefferson City Bridge is the name for two continuous through arch truss bridges over the Missouri River at Jefferson City, Missouri, over which U.S. Routes 54 (US 54) and 63 travel between Cole and Callaway Counties. The southbound bridge opened in August 1955. Its main span is and has a total length of and a deck width of and