ยง  125. Land may be sold or leased; disposition of proceeds. Any lands
  acquired by purchase or  condemnation,  for  the  purpose  of  obtaining
  gravel, stone or other materials, for the construction or maintenance of
  highways  improved  or  constructed  as  provided  in  this  article, or
  required for spoil banks, may be sold in  accordance  with  the  eminent
  domain procedure law or leased by the governing body of any county, when
  no longer needed for any of such purposes. The proceeds thereof shall be
  paid  into and become a part of the county road fund. The governing body
  may, where it has  acquired  land  by  purchase  or  condemnation  as  a
  right-of-way  for  a  county  road,  sell, convey, grant or lease to the
  owner or owners of property adjoining the same, so much thereof  as  may
  be  unnecessary  for  such  highway purposes, provided the strip of land
  retained for such highway purposes is not less than sixty feet in width,
  and provided such sale,  conveyance,  grant  or  lease  will  give  said
  adjoining  owner  or  owners  of land a frontage immediately in front of
  their respective premises upon the new  highway  and  right-of-way  when
  completed.  The  governing body may make such sale, conveyance, grant or
  lease to such owner or owners  of  real  property  for  the  purpose  of
  compensating such owner or owners for damages sustained by reason of the
  change of the location of such highway and in full settlement thereof.
In  the  county  of  Wayne,  however,  if  any such owner or owners of
  property adjoining lands heretofore acquired by said county from the  R.
  & S. Liquidating Corporation and being formerly lands of the Rochester &
  Syracuse  Trolley  Company,  for  purposes of a right-of-way for a state
  highway, do not purchase such lands  or  any  part  thereof  as  may  be
  unnecessary  for  highway  purposes  as provided by this section, within
  sixty days from the receipt by such owner or owners of the offer of  the
  governing  body  of  such county to sell such lands or any part thereof,
  then such board may sell and convey such lands or any part  thereof,  on
  the  same  terms and conditions as those of such offer or offers, to any
  other person or persons, and the proceeds thereof shall be used  in  the
  manner provided by this section.
Structure New York Laws
111 - Payment and Apportionment of Cost Among Counties and Towns.
113 - Annual Statement of Cost.
114 - Sources and Use of County Road Fund Moneys.
115 - Preparation of Map Showing Proposed County Road System.
115-A - Abandonment of Unused Portions of Town Highways on County Road System.
115-B - Removal of Road or Part of Road From County Road System.
115-C - Notice to Municipalities Where County Roads Are Abandoned or Revert to Such Municipalities.
116 - Statement and Approval of Proposed Work.
117 - Construction and Reconstruction of County Roads.
117-A - Highways in Villages in Niagara County.
117-B - Controlled-Access Highways in Counties.
117-C - Hawking, Peddling, Vending, Sale of Goods, Wares or Merchandise; Erie County; Certain Areas.
117-D - Pedestrian Overpass to Be Designated as the "Jennifer Bolender Memorial Overpass".
118 - Acquisition by Counties of Lands for Right-of-Way and Other Purposes.
118-A - Abandoning of Parts of County Highways.
118-B - Entry Upon Lands by County Superintendent.
120 - Petition to Acquire Lands.
121 - Commissioners of Appraisal to Be Appointed.
122 - Duties of Commissioners of Appraisal.
123 - County Treasurer to Pay Awards.
125 - Land May Be Sold or Leased; Disposition of Proceeds.
127 - Payments From the County Road Fund.
129 - Maintenance and Apportionment of Cost.
130 - Bridges on County Road System.
131 - County Roads of Additional Width and Increased Cost at Expense of Village.
131-B - County Highways and Bridges.
131-C - Location and Construction of Bridges.
131-D - Construction by County of Destroyed Bridges.
131-E - Bridges Over County Lines.
131-F - Streets Outside Cities.
131-G - Regulation of Toll Rates.
131-H - Separate Highway Districts in Certain Counties.
131-J - Development of Highways and Other Improvements in Certain Counties.
133 - Machinery, Tools, Equipment, Implements, Materials and Supplies.
133-A - Rental or Hiring of County Highway Machinery, Tools or Equipment.
134 - Purchases by County Purchasing Agent.
135 - Snow Removal, and Cutting of Weeds.
135-A - Control of Snow and Ice Conditions on County Roads.
136 - Permits for Work Within the County Road Right of Way.
137 - Maintenance of Certain Highways by a County.
139 - County Liable for Injuries Caused by Defective Highways and Bridges.
139-A - Presentation of Claims for Torts; Actions Against Counties.