Section 455. Contracts for municipal bridge improvements

Any such contract
  between the commissioner and a municipality may include such  provisions
  as  may  be  agreed  upon  by  the parties thereto and shall include, in
  substance, the following:
    1. the municipal bridge improvements cost;
    2. an agreement by the commissioner to pay to the municipality  during
  the progress of construction or following completion of construction, as
  may  be agreed upon by the parties, an amount equal to eighty percent of
  the cost of the bridge improvements;
    3. an agreement by the municipality:
    (a) to proceed expeditiously with and complete the bridge improvements
  as approved by the commissioner;
    (b) to apply for and/or make  reasonable  efforts  to  secure  federal
  assistance, if any, for the bridge improvements;
    (c)  to  secure  the  approval of the commissioner before applying for
  such federal assistance, in  order  to  maximize  the  amounts  of  such
  assistance  received  or to be received for all improvements in New York
  state;
    (d) to maintain the municipal bridge improvements at its  own  expense
  in  accordance  with the requirements of the commissioner for the period
  of time corresponding to the period of useful life for such improvements
  as determined by reference to section sixty-one  of  the  state  finance
  law;
    (e)   to  certify  to  the  commissioner  that  the  amount  of  funds
  historically appropriated for highway and  bridge  capital  purposes  by
  that  municipality  shall  not be reduced because of the availability of
  the proceeds of the sale of bonds authorized in the Accelerated Capacity
  and Transportation Improvements of the Nineties Bond Act; and
    (f) to pay  twenty  percent  of  the  cost  of  the  municipal  bridge
  improvements;  provided,  however,  that  a municipality may be exempted
  from payment of such share when such share does not exceed one  thousand
  dollars.  Municipalities  shall  be  authorized  to  enter into specific
  municipal bridge improvements contracts with the commissioner to advance
  any phase or phases of the  municipal  bridge  improvements  with  their
  resources. The unreimbursed municipal costs attendant to the use of such
  resources  may  be  credited  as  all or a portion of the municipality's
  twenty percent share of such municipal bridge improvements, as  approved
  by the commissioner.