Evolution from covered timber "arches" of 1836 to Bollman iron trusses and on to modern steel structures; Potomac River crossing of Baltimore and Ohio Railroad has made bridge history as well as reflected changes in railroad rolling stock and operating practices. (see also Eng. and Contracting, vol. 70, no. 5, May 1931, pp. 115-117, 3 figs)
Ninety-four years of bridges at harpers ferry
Eng. News-Rec
Engineering News-Record ; 107 , n 12
1931
3 pages
3 Figs.
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Ninety-four years of bridges at harpers ferry
Engineering Index Backfile | 1931
|Harpers bus memories in colour
SLUB | 2012
|Online Contents | 2002
Engineering Index Backfile | 1910
Sassnitz ferry port: Fifteen years of ferry line with Klaipeda
Online Contents | 2001