Inner Tay Estuary viridis" - a species normally found only in north-eastern North America. Scottish Natural Heritage has commissioned and published habitat survey reports for the Inner Tay Estuary. Public roads run within a few hundred metres of the both north and south shores providing easy access to view the estuary and its wildlife, though car parking is limited in many places: (south shore) Wormit, Balmerino, Newburgh, Elcho Castle; (north bank) Riverside Drive in Dundee by the railway bridge, Invergowrie, Kingoodie, Port Allen, Powgavie, Cairnie Pier; (in Perth) from both banks, the bridges, Moncreiffe Island; (in Bridge of Earn) the bridge. The minor
Tay Rail Bridge eight months. A good deal would depend on the weather but this was far from favourable. Despite this, on 22 September 1877, the first engine crossed the bridge, and upon its completion in early 1878 the Tay Bridge was the longest in the world. While visiting the city, Ulysses S. Grant commented that it was "a big bridge for a small city". Like all UK rail lines, the Tay Bridge was subject to a Board of Trade inspection before it could carry passenger trains. The inspection was conducted 25–27 February 1878 by Major General Hutchinson of the Railway Inspectorate, who