CHAPTER VII – RAILWAY BRIDGES AND VIADUCTS.
1. Brickwork and Masonry Bridges—Hanwell Viaduct—Maidenhead Bridge—Flying Bridges—Letter from Mr. Brunel on Bridge Construction (December 30, 1854)—2. Timber Bridges—Sonning Bridge—Bath Bridge—Stonehouse Viaduct—Bourne Viaduct—St. Mary’s Viaduct—Viaducts on the South Devon Railway—Ivy-bridge—Viaducts on the South Wales Railway—Newport—Landore—Viaducts on the Cornwall Railway—St. Pinnock—Viaducts on the West Cornwall and Tavistock Railways—Preservation of Timber—3. Cast-iron Bridges—Letter on Use of Cast Iron (April 18, 1849)—Hanwell Bridge—Experiments on Cast-iron Girders—Extract from Letter to Secretary of Commission on Application of Iron to Railway Structures (March 13, 1848)—4. Wrought-iron Bridges—Girder Bridges—Experiments on Wrought-iron Girder—Opening Bridges—Trussed Bridges—Newport Viaduct—Windsor Bridge—Chepstow Bridge—Method of Sinking the Cylinders—Description of the Main Truss—The Floating Operations—The Royal Albert Bridge at Saltash—The Centre Pier—Description of the Superstructure—The Floating and Raising of the Trusses—Opening of the Bridge by H. R. H. the Prince Consort—Note: Experiments on Matters connected with Bridge Construction