S6-1952

1. This Specification is intended to apply, primarily, to simple-span highway bridges of 300 feet or less, including thos carrying street cars or freight cars with locomotives in addition to the regular highway traffic. It may be used, however, in designing simple-span bridges of greater length than 300 feet, as well as other types, including cantilever bridges, continuous bridges, arch bridges, etc., in which case, the Engineer shall provide such supplementary clauses as may be required for the particular type of structure planned.