Hoyt, Charles Hamilton, Burr, William H. (William Hubert), 1851-1934, joint author, United States. Bureau of Public Roads · Washington : U.S. Dept. of Agriculture, Office of Public Roads : G.P.O. · leaf 19
r its use to be encouraged, and it is the purposeof tliis bulletin to deal vnih types of construction of a more perma-nent and substantial nature, such as concrete and steel. CONCRETE SLABS, T-BBAMS, AND REINFORCED CONCRETE. The simplest form of concrete construction for bridges or culvertsis the… … >t<se/ roofs Tig. 2.- -Eeinforced concrete floor for distributing pressure over a greater area and for protectingfoundation from erosion. than the plank floor, and it may also be strengthened for greaterspans by constructing concrete beams beneath the floor to supportit. This is then known as…
Bridges · Culverts
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