Engineering and Contracting . hey are all alike structurally. The design ^^ ^ _ adopted was preceded by exhaustive prelim- Hvered them close alongside the locks. Theinarv studies to determine the best type. Theresult of these studies was to determine theadoption of the mitering type. Comparisonswere then made between miter gate leaves ofthe straight girder type and of the arch was found that the arch form was moreeconomical in material, but that this savingwas counterbalanced by the higher cost of thecurved work which its construction demand-ed. Furthermore, the greater thickness ofthi
Engineering and Contracting . hey are all alike structurally. The design ^^ ^ _ adopted was preceded by exhaustive prelim- Hvered them close alongside the locks. Theinarv studies to determine the best type. Theresult of these studies was to determine theadoption of the mitering type. Comparisonswere then made between miter gate leaves ofthe straight girder type and of the arch was found that the arch form was moreeconomical in material, but that this savingwas counterbalanced by the higher cost of thecurved work which its construction demand-ed. Furthermore, the greater thickness ofthis arch leaf necessitated increased depth of exceed % in.: and that the heights ofgates agree within less than M in. with tlfigures shown on the plans. Generally the erection of the frameworwas completed before the sheathing was hegun, but in any case all riveting of the framework was completed before the sheathing in place. The manner of performmthe sheathing was to lower the plates into P 24-i50; rft-j 4-l(PUI-0^. llBor
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicago, bookyear19
