structure shall be of steel or iron; piers, abutments, Avenue. floor beams are placed, consisting of iron plate girders, which carry tfye^roadway and footwalks. The transverse etc., of stone, to be founded on solid rock wherever The masonry approaches are as nearly symmetrical practicable; that the… … DESIGN-FOR BRIDGE ACROSS THE HARLEM RIY1R AT 181st STREET, NEW YORK CITY LOOKING SOUTH-FIRST PRIZE,
Patented · Patents · Rattlesnake · Munn · Iron · Water · Scientific American · Snake · Express money · Tree houses · Letters patent · Type bars · Feed water · John wiley · Address munn · American supplement · Tight joint
Internet Archive · Public domain (published before 1931). Free to use for anything.
