very expensive railway had been in operation for more than a score of years, the gage was changed to conform to the customary English practice.
The same events have happened or will happen with the so-called broad gage — 6 feet — of this country; Erie, Atlantic and Great Western, Ohio and Mississippi, and Grand Trunk railways.
Brunel was regardless of expense.
His track of 7 feet between the rails involved other increased expenditures, such as wider tracks, bridges, tunnels embankments, viassachusetts, 1642.
She had been sunk in the previous year, and the diving-bell seems to have been used in adjusting the slings by which she was raised and transported to shoal water, where the hull, lading, and guns were recovered.
The steamer Erie, burnt and sunk in Lake Erie in 1854, was raised by Colonel Gowan by means of chain falls working from two open-trussed frames supported upon hulks on either side.
This gentleman, under a contract with the Russian government afterward, between
8 feet, and a length of 35 feet 4 inches at top of caisson, and a width of 7 feet 3 inches at top of cut-stone.
Beside the piers which carry the superstructure, there are at the draw 2 guard-piers, one above and one below, which serve to protect the draw from injury and to aid vessels in passing.
It is substantially the Howe truss.
The bridge across the entrance to the Niagara River, at Black Rock, designed for the use of the Grand Trunk, Great Western, Canada Southern, New York Central, Erie, and New York West Shore, and Chicago Railways, has a total length of 3,550 feet, 1,300 feet of which are over trestle-work upon Squaw Island, 450 feet over Black Rock Harbor, and the remainder over the main branch of the river.
The river portion of the bridge has 8 piers and 2 abutments.
Owing to the depth of water, from 12 to 45 feet, and a current of from 5 1/2 to 10 miles an hour, varying with the state of the wind, considerable difficulty was experienced in the construction of the pi