shall be the duty of the said commissioners, as soon as may be after the passing of this act, to cause those parts of the territory of this state which may lie upon or contiguous to the probable courses and ranges of the said canals, to be explored and examined for the purpose of fixing and determining the most eligible and proper routes for the same, and to cause all necessary surveys and levels to be taken, and accurate maps, field books and drafts thereof to be made, and further to adopt and recommend proper plans for the construction and formation of the said canals, and of the locks, dams, embankments, tunnels and aqueducts which may be necessary for the completion of the same, and to cause all necessary plans, drafts and models thereof, to be executed under their direction.
IV And be it further enacted, That the said commissioners or a majority of them, shall be, and they are hereby authorized and required to make application in behalf of this state, to the government of the United States, and of such states and territories as may be benefited by the said canals or either of them, to the proprietors
