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 36
CO U^-.jrmtjtM £ko SLX^mrtof*. 39, Office of Public Roads, U. S. Dept. of Agriculture.75: Plate IX. … KEINTOECED CONCRETE ARCHES FOOTINGS. 17 The difference in the cost between an arch culvert for this spanand that for a box culvert of the same span is not a matter of muchimportance. The advantage, if there is any, of the arch over thebox type occurs very probably from the fact that no steel…
Bridges · Culverts
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
