Bridges and culverts for highway traffic, flat slab and girder type ...
A 1908 trade catalogue issued by the Expanded Metal and Corrugated Bar Company of St. Louis, showing reinforced concrete flat-slab and girder bridges and culverts to engineers, contractors, and county highway officials. Line drawings give sections, side elevations, and load diagrams with dimension arrows, hatched fill, stippled concrete, and hand-lettered measurements, useful as technical diagram texture and engineering notation.
