N.Y. Canal Law § 102
No pipe line shall be constructed upon or across any of the canals of this state, except by the consent of and in a manner and upon the terms prescribed by the corporation, unless constructed upon a fixed bridge across such canal and with the consent of the person, firm or corporation for whose benefit such bridge is constructed and maintained, or upon such a bridge over the canal, at the crossing of a public highway, or street, with the consent of the public officers having the supervision thereof, or of the municipal authorities of any village or city within whose limits such bridge may be, nor shall the pipes of any such corporation be laid through, on or along the banks of any of the canals of this state, unless such pipes shall be encased so as to prevent leakage, in such manner as shall be approved by the corporation.
N.Y. Canal Law § 102