Method developed by Pennsylvania Railroad to restore traffic after bridge washout or burnout; design of all-welded steel trestle to be installed when bridge failures occur; length of trestle can be adjusted to length of span or structure lost; installation tests with trestles. (See also Ry Age v 152 n 18 May 7 1962 p 13-15)
How PRR will handle bridge washouts
Ry Track Structures
Railway Track and Structures ; 58 , n 5
1962
3 pages
Article (Journal)
English
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