Buildings and structures of American railroads. A reference book for railroad managers, superintendents, master mechanics, engineers, architects, and students (1893)
Berg, Walter Gilman, 1858-1908 · New York Wiley · leaf 93
6 in.from top of rail. The side-wall foundations are of concrete,2 ft. wide and about i ft. thick. The side walls are built ofcommon brick, 17 in. thick. The coping timbers or stringersunder the rails are 8-in. X 12-in. white pine, anchored to thewall even, 6 ft. with f-inch bolts, reaching about 3…
Building · Railroads
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
