Wonders of World Engineering

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Part 11

Part 11 of Wonders of World Engineering was published on Tuesday 11th May 1937, price 7d.

Part 11 includes a photogravure supplement featuring some of New York’s Giant Bridges. It illustrates the article of the same title.

The Cover

The cover this week shows the George Washington Bridge, one of the most recent of the huge bridges which are such a prominent feature of New York. Completed in 1932, the bridge spans the Hudson River between Tenafly, New Jersey, and Washington Heights, New York. This picture was later used as the colour plate in part 36 to illustrate an article on the George Washington Bridge.

Contents of Part 11

Britain’s Biggest Ship Canal

(Part 2)

Story of the Diesel Engine

New York’s Giant Bridges

New York’s Giant Bridges (photogravure supplement)

New York’s Giant Bridges 1

LATTICE STEELWORK on one of the central cantilever towers of the Queenboro’ Bridge, on Blackwell’s Island, in the East River. The tower is mounted on a masonry pier. The photograph shows how the cantilever construction is all above the level of the lower of the two decks.

The Brooklyn Bridge, New York

New York’s Giant Bridges 2

THE BROOKLYN BRIDGE, at the time of its building, had the longest single span of any bridge in the world. Completed in 1883, the bridge and approach viaducts have a total length of 5,989 feet, or more than a mile. The two suspension towers were based on caissons sunk in the bed of the river. At a height of 118 feet, each tower divides into two Gothic (or pointed) arches, each 120 ft 6 in high and 31 ft 6 in wide, through which pass the carriageways and car tracks of the bridge.

New York’s Giant Bridges 3

MANHATTAN BRIDGE has a span of 1,470 feet between the two steel towers which support the massive suspension cables. The total length of the bridge between abutments is 2,920 feet and the width 120 feet. Two decks carry roadways, footpaths and railway tracks. The anchorages, in contrast to the towers, were built of masonry.

The First Thames Tunnel

Pioneering in Alaska and Yukon

(Part 1)

The George Washington Bridge, New York