Small concrete bridges and culverts
A 1914 trade handbook issued by the Universal Portland Cement Company in the United States, giving county road engineers and contractors standard designs for small reinforced-concrete bridges and culverts. Pages pair halftone site photographs of poured box culverts and slab spans with measured working drawings"half plans, half sections, elevations and isometric cutaways annotated with bar sizes and spans"useful for technical line work, dimensioned diagrams and hatched fill textures.
