The Forth Bridge.

South Canterbury Times, Issue 6028, 3 October 1889, Page 2

The Forth Bridge.

The Forth bridge is described as the greatest work of its kind in the world. The following particulars of it arc from Hazell: — The main features will bo the extraordinary spans, for h rigid structure, of a third of a mile in length, each of which is made by two cantilevers of 6SO feet long, united by 350 feet of girders. When finished the structure will carry the railway high above the sides of the valley of the Forth, the piers indeed being nearly the height of j3t. Paul’s Cathedral. Sir John Fowler and Mr B. Baker, 0.E.) arc the engineers, and the work has progressed from the first without serious mishap. It may be added that it is calculated that the wind pressure will not be more than 561 b per foot, amounting to 2,600 tons on one span, and the rolling load 600 tons, not more than two trains being allowed on any part of tiro bridge at the same . time. It is considered that these stresses are far more than provided for. The lines connect, ing the bridge with Edinburgh on one ,; side

and Fife on tho other, had made such progress that it was expected they would be completed simultaneously with the bridge itself. The engineers’ report stated that the monthly average tonnage orected-exceeded 1,400 tons, with a maximum of 2,350 tons. The total amount of steel work manufactured for the bridge was 42,667 tons, and, including the approach viaduct girders, about 34,500 tons had been erected.'