River Tay naturally. To aid this process and improve the health and resilience of the population a further 28 beavers will be released in Knapdale between 2017 and 2020, however there are no plans at present to release further beavers into the Tay. In the 19th century the Tay Rail Bridge was built across the firth at Dundee as part of the East Coast Main Line, which linked Aberdeen in the north with Edinburgh and London to the south. The bridge, designed by Sir Thomas Bouch, officially opened in May 1878. On 28 December 1879 the bridge collapsed as a train passed
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