Highway bridges and culverts . Fig. 2.—Culvert with Substantial Abutments and Wing Walls. !ul. 43, Office of Public Roads, U. S. Dept. of Agriculture. Plate Bui. 43; Office of Public Roads, U. S. Dept. of Agriculture. Plate XII

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Keywords: ., bookauthorhoytchar, bookcentury1900, bookdecade1910, bookyear1912