Rail Bridge
Total length 2,528.7 metres
Opened 4 March 1890

The Forth Bridge is a cantilever railway bridge over the Firth of Forth in the east of Scotland, to the east of the Forth Road Bridge, and 14 kilometres  west of central Edinburgh. It was opened on 4 March 1890, and spans a total length of 2,528.7 metres.  The bridge connects Scotland's capital city, Edinburgh, with Fife, leaving the Lothians at Dalmeny and arriving in Fife at North Queensferry; it acts as a major artery connecting the north-east and south-east of the country

Road Bridge
Total length 2,512 m
Opened 4 September 1964

The Forth Road Bridge is a suspension bridge in east central Scotland. The bridge, opened in 1964, spans the Firth of Forth, connecting the capital city Edinburgh, at South Queensferry, to Fife, at North Queensferry. The bridge replaced a centuries-old ferry service to carry vehicular traffic, cyclists, and pedestrians across the Forth

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Firth Of Forth
The Firth of Forth is the estuary or firth of Scotland's River Forth, where it flows into the North Sea, between Fife to the north, and West Lothian, the City of Edinburgh and East Lothian to the south. It was known as Bodotria in Roman times.

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Sources
Road Bridge Wiki
Rail Bridge Wiki
Firth Of  Forth Wiki

Its pretty.... but still very cold.