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 locks were to measure 110 feet between quoins and be eighteen feet deep. It was estimated that a canal of these proportions would save fifty per cent of transportation charges exclusive of tolls. The enlargement construction law was passed May 11, 1835; the act called for the construction of "double locks thereon as soon as they should deem it for the public interest; the dimensions of the canals and locks to be fixed by the Canal Board."

The new canal, seventy feet wide by seven feet deep, was divided into four sections. The first was from Albany to the eastern end of the Rome summit; the estimated cost of this section for enlargement was $2,864,335.96. The second section ran from east end of Rome summit to Jordan; estimated cost, $1,194,804.74. The third lay between Jordan and Rochester; estimated cost $2,739,139.51. The portion from Rochester to Buffalo comprised the fourth section, its estimated cost being $4,518,575.85. The total estimated cost, after adding ten per cent for contingencies,