Original General Order 95
Supply Lines or Communication Lines Crossing
113.3 Limitation of Span Length
The crossing span shall be made as short as is practicable. In no case shall the length of the crossing span be greater than the normal span of the line, and the length of the next adjoining span shall be no greater than one and one-half times the normal span. Span of extraordinary length, made necessary by unusual conditions of topography, shall be considered as exceptions to the above rule.