Section 60. Alteration of county roads or town highways

Whenever the
  commissioner of transportation shall deem it necessary to discontinue or
  alter any part  of  a  county  road  or  town  highway  because  of  its
  interference with the proper location or construction of any work on the
  canal  system either of improvment, maintance, or repair he shall direct
  such discontinuance or alteration to be made and file in the  office  of
  the  clerk  of  the  county  or  town  in  which such road or highway is
  situate, an accurate description of the part of such road or highway  so
  discontinued  and of the one laid out anew. From the time of filing such
  description such road or highway shall be considered so altered. The use
  of such old road or highway shall not be discontinued until the new road
  or highway is declared open  for  public  use  by  the  commissioner  of
  transportation,  and a certificate to such effect filed in the office of
  the clerk of the county or  town  in  which  said  road  or  highway  is
  located. Every alteration made on any public road located upon the canal
  system before the first day of January, nineteen hundred and thirty-nine
  shall be deemed valid in law from the time of such alteration.