Edinburgh-aberdeen cable

Describes the special methods of construction and installation used at the river crossings (the river Tay at Dundee and the Firth of Forth at Queensferry). For the river Tay portion a subfluvial cable was used but due to the rocky nature of the bed of the Forth, it was necessary to lay the cables across the Forth Bridge. The Edinburgh-Aberdeen link is a 12-channel carrier on cable system covering a distance of 123 miles and comprises two 12 quad 40 lb. cables.