AASHTO HB-8Standard Specifications for Highway Bridges, 8th Edition, 1961standard by American Association of State and Highway Transportation Officials, 1961
AASHTO HB-6Standard Specifications for Highway Bridges, 6th Edition, 1953standard by American Association of State and Highway Transportation Officials, 1953
AASHTO HB-5Standard Specifications for Highway Bridges, 5th Edition, 1949standard by American Association of State and Highway Transportation Officials, 1949
AASHTO HB-2Standard Specifications for Highway Bridges, 2nd Edition, 1935standard by American Association of State and Highway Transportation Officials, 1935
AASHTO HB-1Standard Specifications for Highway Bridges and Incidental Structures, 1st Edition, 1931standard by American Association of State and Highway Transportation Officials, 1931