State Codes and Statutes

Statutes > New-york > Cal > Article-4 > 30

§  30.  Contracts  for improvement, maintenance or repair of the canal  system. Upon  the  completion  and  final  approval  of  the  plans  and  specifications  for  the improvement, maintenance or repair to the canal  system, contracts therefor shall be executed as provided herein.    1. Advertising for proposals.  The  corporation  shall  advertise  for  proposals in accordance with plans and specifications prepared by it for  such  improvement,  maintenance  or  repair  of  the canal system as the  corporation deems it  expedient  to  have  performed  by  contract.  The  advertisement  shall  be  limited  to  a  brief  description of the work  proposed to be done, with an announcement stating where the maps,  plans  and specifications may be seen, the terms and conditions under which the  proposals  will  be  received, the time and place where the same will be  opened, the amount of the draft or  certified  check  to  accompany  the  proposal,  and  such other matters as the corporation may deem advisable  to include therein. Such advertisement shall be published at least  once  in  each  week  for two successive weeks in a newspaper published at the  county seat of the county in which such canal work is  to  be  performed  and  in  such  other  newspapers as the corporation may designate. If no  newspaper is published at such county seat, then the publication of  the  advertisement shall be in such newspaper or newspapers within the county  as  the  corporation  may  select.  If  no newspaper is published in the  county, the publication of the advertisement shall be in such  newspaper  or  newspapers  in  an  adjoining  county  as  may  be  selected  by the  corporation. Failure of such newspaper,  published  in  such  county  or  adjoining  county,  to  publish  such  advertisement as provided in this  subdivision or as directed by the corporation shall not  invalidate  the  publication  of  advertisement for proposals provided such advertisement  is published in another newspaper or trade publication,  which  will  be  most  likely  to  give  adequate  notice  to  contractors  of  the  work  contemplated and of the invitation  to  submit  proposals  therefor,  at  least  once in each week for any two successive weeks preceding the date  on which proposals described in such advertisement are  to  be  received  and opened.    2.  Proposals.  Each  proposal shall specify the correct gross sum for  which the work will be performed and shall also include the amount to be  charged for each item specified on  the  proposal  estimate  sheet.  The  corporation  may  prescribe and furnish forms for the submission of such  proposals and may prescribe the manner  of  submitting  the  same  which  shall  not  be  inconsistent  herewith. Accompanying each proposal there  shall be a certified check or bank cashier's check for the amount of the  bid deposit, to be  fixed  by  the  corporation  and  specified  in  the  advertisement  for proposals. The checks of the two low bidders shall be  deposited by the corporation in a special  account.  Provided,  however,  that  if  prior  to  or upon receipt of said checks by the corporation a  bidder who is one of the two low bidders shall have duly filed a bond as  hereinafter provided, the corporation shall  forthwith  return  to  said  bidder  his  aforesaid  check  without depositing the same. If alternate  proposals are taken, the checks of the two low bidders of all  alternate  proposals shall be deposited. All checks other than those of the two low  bidders  shall  be returned promptly by the corporation. Notwithstanding  the provisions of any general or special law, the money  represented  by  the checks of the two low bidders shall be paid from the special account  when  the  contractor has duly executed and delivered to the corporation  the contract and the bond or bonds required by law for  the  performance  of  the  work of a public improvement for the state of New York, or upon  the rejection of all bids. The low bidder,  in  the  discretion  of  the  corporation, and the second low bidder, as a matter of right, may at any  time  after  the  opening  of  the  respective  proposals, file with thecorporation a bond, the principal amount of which shall at  least  equal  the  amount of the respective bidder's check, theretofore deposited with  his proposal, in the form prescribed by the corporation, with sufficient  sureties,  to  be approved by the corporation, conditioned that the said  bidder will execute a contract and furnish  such  performance  or  other  bonds  as  may  be  required  by law in accordance with the terms of the  bidder's  said  proposal.  If  a  bidder  complies  with  the  aforesaid  provisions, the corporation shall forthwith return the money represented  by the check of such bidder.    In case the bidder to whom the contract shall be awarded shall fail to  execute  such  contract  and  bond, the moneys represented by such check  shall be regarded as liquidated damages and shall be  forfeited  to  the  state and shall be deposited by the corporation with the commissioner of  taxation  and  finance to the credit of the general fund. The gross sums  indicated on the proposals when  opened  shall  be  publicly  read.  The  corporation  shall  keep the bids for the several items of the proposals  confidential until an award of the contract is  made,  after  which  the  proposals shall be subject at all reasonable times to public inspection.    3. Award of contract. The contract for the improvement, maintenance or  repair  of  any  part of the canal system shall be awarded to the lowest  responsible bidder,  as  will  best  promote  the  public  interest.  No  contract  shall be awarded to a bidder other than the lowest responsible  bidder without the written approval of the comptroller. The  lowest  bid  shall  be  deemed  to be that which specifically states the lowest gross  sum for which the entire work will be performed, including all the items  specified in the estimate therefor. The lowest bid shall  be  determined  by  the  corporation  on the basis of the gross sum for which the entire  work will be performed, arrived at by a correct computation of  all  the  items specified in the estimate therefor at the unit prices contained in  the bid.    4.  Rejection  of  proposals.  The  corporation  may reject any or all  proposals and may advertise  for  new  proposals  as  provided  in  this  section,  if,  in  its  opinion,  the best interest of the state and the  corporation will thereby be promoted.    5. Form of contract. The  corporation  shall  prescribe  the  form  of  contract  and  may include therein such matters the corporation may deem  advantageous to the state and the corporation.    6. Bond of contractor. Each contractor before entering into a contract  for such improvement, maintenance or repair of the  canal  system  shall  execute  a  bond  in  the  form  prescribed  by  the  corporation,  with  sufficient sureties, to be approved by  the  corporation,  on  condition  that  it  will  perform  the  work  in  accordance with the terms of the  contract and the plans and specifications, and that it will commence and  complete the work within the time prescribed in the contract.  The  bond  shall  also provide against any direct or indirect damages that shall be  suffered or claimed on  account  of  such  construction  or  improvement  during the time thereof, and until the work is finally accepted.    7.  Payments on contracts, state taxes. The contract shall provide for  partial payments as the work progresses as hereinafter provided:    (a) Ten per centum shall be retained from  each  progress  payment  or  estimate  until  the  contract work is fifty per centum completed, after  which no further moneys shall be retained from any progress payments  or  estimates  paid  thereafter,  and when the entire contract work has been  completed and accepted, the corporation shall, pending  the  payment  of  the  final estimate, pay not to exceed fifty per centum of the amount of  the retained percentage.    (b) Whenever in the judgment of the corporation the withholding of the  retained percentage on account of the  closing  of  the  working  seasonwould  be  an injustice to the contractor, the corporation may, provided  the district engineer certifies that the essential items in the contract  have been completed in accordance with the terms of the contract and the  provisions  of  this chapter, direct the district engineer to include in  the final account such uncompleted items and pay therefor  at  the  item  prices   in  the  contract  upon  the  contractor  depositing  with  the  corporation securities equal to double the  value  of  such  uncompleted  work.  The  deposit  may  be  used  by  the  corporation to complete the  uncompleted portion of  the  contract  and  shall  be  returned  to  the  contractor  if  it  completes the uncompleted portion within a specified  number of working days after it has been notified to  proceed  with  the  work.    (c)  No  certificates  approving  or  authorizing  a  partial or final  payment shall be made by the corporation until it is satisfied that  all  laborers  employed on the work have been paid for their services for the  last payroll period preceding the said partial  or  final  payment.  The  corporation  may,  if  it  deems necessary, require an affidavit to such  effect from the contractor or it may depend on any other source which it  deems proper for such information.    (d)  Contracts  in  force  at  the  date  of  the  enactment  of  this  subdivision  may,  in  the  discretion of the corporation, be amended to  provide for  the  withholding  and  the  payments  contemplated  by  the  provisions  of  paragraph  (a)  of  this  subdivision,  if the surety or  sureties upon the performance and labor and material bonds  given  by  a  contractor upon any such contract shall consent in writing thereto.    (e)  No  such  certificate  authorizing or approving the first partial  payment or any final payment to  a  foreign  contractor  shall  be  made  unless  such  contractor shall furnish satisfactory proof that all taxes  due the commissioner of taxation and finance by  such  contractor  under  the provisions of or pursuant to a law enacted pursuant to the authority  of article nine, nine-A, twelve-A, twenty-one, twenty-two, twenty-eight,  twenty-nine  or thirty of the tax law have been paid. The certificate of  the commissioner of taxation and finance to the  effect  that  all  such  taxes have been paid shall be, for purpose of this paragraph, conclusive  proof  of  the  payment  of such taxes. The term "foreign contractor" as  used in this subdivision means, in the case of an individual,  a  person  who  is  not a resident of this state, in the case of a partnership, one  having one or more partners not a resident of this  state,  and  in  the  case of a corporation, one not organized under the laws of this state.    8.  Contingencies  and extra work. Whenever the corporation determines  that from any unforeseen cause the  terms  of  any  contract  should  be  altered to provide for contingencies or extra work, it may, if funds are  available  for  payment  of the cost thereof, issue an order on contract  therefor to the contractor, a copy of which  shall  be  filed  with  the  director  of  the  budget  and  the  state  comptroller.  The  estimated  expenditure pursuant to the order on contract  shall  not  increase  the  total  amount  of  the  primary contract until the estimated expenditure  shall have been approved by the corporation  and  a  duplicate  of  such  approval  shall have been filed with the comptroller. No such extra work  shall be commenced or undertaken until the  corporation  has  issued  an  order on contract as herein provided.    When  such  order  on  contract  provides for similar items of work or  materials which increase or decrease the itemized quantity provided  for  in  the primary contract, the price to be paid therefor shall not exceed  the unit bid price in the primary contract for such items. Agreed prices  for new items of work or materials may be incorporated in the  order  on  contract  as  the  corporation  may  deem  them  to be just and fair and  beneficial to the state, including the corporation.Whenever the corporation also determines  that  in  the  cases  herein  provided it is impracticable for it to ascertain in advance the just and  fair  prices to be paid by the state for new items of work or materials,  the order on contract therefor may provide for performance of  the  work  and  the  furnishing  of the materials and equipment, in which event the  contractor shall keep and shall make  available  at  all  times  to  the  corporation  such  accounting  records,  data  and  procedure  as may be  required by the corporation.

State Codes and Statutes

Statutes > New-york > Cal > Article-4 > 30

§  30.  Contracts  for improvement, maintenance or repair of the canal  system. Upon  the  completion  and  final  approval  of  the  plans  and  specifications  for  the improvement, maintenance or repair to the canal  system, contracts therefor shall be executed as provided herein.    1. Advertising for proposals.  The  corporation  shall  advertise  for  proposals in accordance with plans and specifications prepared by it for  such  improvement,  maintenance  or  repair  of  the canal system as the  corporation deems it  expedient  to  have  performed  by  contract.  The  advertisement  shall  be  limited  to  a  brief  description of the work  proposed to be done, with an announcement stating where the maps,  plans  and specifications may be seen, the terms and conditions under which the  proposals  will  be  received, the time and place where the same will be  opened, the amount of the draft or  certified  check  to  accompany  the  proposal,  and  such other matters as the corporation may deem advisable  to include therein. Such advertisement shall be published at least  once  in  each  week  for two successive weeks in a newspaper published at the  county seat of the county in which such canal work is  to  be  performed  and  in  such  other  newspapers as the corporation may designate. If no  newspaper is published at such county seat, then the publication of  the  advertisement shall be in such newspaper or newspapers within the county  as  the  corporation  may  select.  If  no newspaper is published in the  county, the publication of the advertisement shall be in such  newspaper  or  newspapers  in  an  adjoining  county  as  may  be  selected  by the  corporation. Failure of such newspaper,  published  in  such  county  or  adjoining  county,  to  publish  such  advertisement as provided in this  subdivision or as directed by the corporation shall not  invalidate  the  publication  of  advertisement for proposals provided such advertisement  is published in another newspaper or trade publication,  which  will  be  most  likely  to  give  adequate  notice  to  contractors  of  the  work  contemplated and of the invitation  to  submit  proposals  therefor,  at  least  once in each week for any two successive weeks preceding the date  on which proposals described in such advertisement are  to  be  received  and opened.    2.  Proposals.  Each  proposal shall specify the correct gross sum for  which the work will be performed and shall also include the amount to be  charged for each item specified on  the  proposal  estimate  sheet.  The  corporation  may  prescribe and furnish forms for the submission of such  proposals and may prescribe the manner  of  submitting  the  same  which  shall  not  be  inconsistent  herewith. Accompanying each proposal there  shall be a certified check or bank cashier's check for the amount of the  bid deposit, to be  fixed  by  the  corporation  and  specified  in  the  advertisement  for proposals. The checks of the two low bidders shall be  deposited by the corporation in a special  account.  Provided,  however,  that  if  prior  to  or upon receipt of said checks by the corporation a  bidder who is one of the two low bidders shall have duly filed a bond as  hereinafter provided, the corporation shall  forthwith  return  to  said  bidder  his  aforesaid  check  without depositing the same. If alternate  proposals are taken, the checks of the two low bidders of all  alternate  proposals shall be deposited. All checks other than those of the two low  bidders  shall  be returned promptly by the corporation. Notwithstanding  the provisions of any general or special law, the money  represented  by  the checks of the two low bidders shall be paid from the special account  when  the  contractor has duly executed and delivered to the corporation  the contract and the bond or bonds required by law for  the  performance  of  the  work of a public improvement for the state of New York, or upon  the rejection of all bids. The low bidder,  in  the  discretion  of  the  corporation, and the second low bidder, as a matter of right, may at any  time  after  the  opening  of  the  respective  proposals, file with thecorporation a bond, the principal amount of which shall at  least  equal  the  amount of the respective bidder's check, theretofore deposited with  his proposal, in the form prescribed by the corporation, with sufficient  sureties,  to  be approved by the corporation, conditioned that the said  bidder will execute a contract and furnish  such  performance  or  other  bonds  as  may  be  required  by law in accordance with the terms of the  bidder's  said  proposal.  If  a  bidder  complies  with  the  aforesaid  provisions, the corporation shall forthwith return the money represented  by the check of such bidder.    In case the bidder to whom the contract shall be awarded shall fail to  execute  such  contract  and  bond, the moneys represented by such check  shall be regarded as liquidated damages and shall be  forfeited  to  the  state and shall be deposited by the corporation with the commissioner of  taxation  and  finance to the credit of the general fund. The gross sums  indicated on the proposals when  opened  shall  be  publicly  read.  The  corporation  shall  keep the bids for the several items of the proposals  confidential until an award of the contract is  made,  after  which  the  proposals shall be subject at all reasonable times to public inspection.    3. Award of contract. The contract for the improvement, maintenance or  repair  of  any  part of the canal system shall be awarded to the lowest  responsible bidder,  as  will  best  promote  the  public  interest.  No  contract  shall be awarded to a bidder other than the lowest responsible  bidder without the written approval of the comptroller. The  lowest  bid  shall  be  deemed  to be that which specifically states the lowest gross  sum for which the entire work will be performed, including all the items  specified in the estimate therefor. The lowest bid shall  be  determined  by  the  corporation  on the basis of the gross sum for which the entire  work will be performed, arrived at by a correct computation of  all  the  items specified in the estimate therefor at the unit prices contained in  the bid.    4.  Rejection  of  proposals.  The  corporation  may reject any or all  proposals and may advertise  for  new  proposals  as  provided  in  this  section,  if,  in  its  opinion,  the best interest of the state and the  corporation will thereby be promoted.    5. Form of contract. The  corporation  shall  prescribe  the  form  of  contract  and  may include therein such matters the corporation may deem  advantageous to the state and the corporation.    6. Bond of contractor. Each contractor before entering into a contract  for such improvement, maintenance or repair of the  canal  system  shall  execute  a  bond  in  the  form  prescribed  by  the  corporation,  with  sufficient sureties, to be approved by  the  corporation,  on  condition  that  it  will  perform  the  work  in  accordance with the terms of the  contract and the plans and specifications, and that it will commence and  complete the work within the time prescribed in the contract.  The  bond  shall  also provide against any direct or indirect damages that shall be  suffered or claimed on  account  of  such  construction  or  improvement  during the time thereof, and until the work is finally accepted.    7.  Payments on contracts, state taxes. The contract shall provide for  partial payments as the work progresses as hereinafter provided:    (a) Ten per centum shall be retained from  each  progress  payment  or  estimate  until  the  contract work is fifty per centum completed, after  which no further moneys shall be retained from any progress payments  or  estimates  paid  thereafter,  and when the entire contract work has been  completed and accepted, the corporation shall, pending  the  payment  of  the  final estimate, pay not to exceed fifty per centum of the amount of  the retained percentage.    (b) Whenever in the judgment of the corporation the withholding of the  retained percentage on account of the  closing  of  the  working  seasonwould  be  an injustice to the contractor, the corporation may, provided  the district engineer certifies that the essential items in the contract  have been completed in accordance with the terms of the contract and the  provisions  of  this chapter, direct the district engineer to include in  the final account such uncompleted items and pay therefor  at  the  item  prices   in  the  contract  upon  the  contractor  depositing  with  the  corporation securities equal to double the  value  of  such  uncompleted  work.  The  deposit  may  be  used  by  the  corporation to complete the  uncompleted portion of  the  contract  and  shall  be  returned  to  the  contractor  if  it  completes the uncompleted portion within a specified  number of working days after it has been notified to  proceed  with  the  work.    (c)  No  certificates  approving  or  authorizing  a  partial or final  payment shall be made by the corporation until it is satisfied that  all  laborers  employed on the work have been paid for their services for the  last payroll period preceding the said partial  or  final  payment.  The  corporation  may,  if  it  deems necessary, require an affidavit to such  effect from the contractor or it may depend on any other source which it  deems proper for such information.    (d)  Contracts  in  force  at  the  date  of  the  enactment  of  this  subdivision  may,  in  the  discretion of the corporation, be amended to  provide for  the  withholding  and  the  payments  contemplated  by  the  provisions  of  paragraph  (a)  of  this  subdivision,  if the surety or  sureties upon the performance and labor and material bonds  given  by  a  contractor upon any such contract shall consent in writing thereto.    (e)  No  such  certificate  authorizing or approving the first partial  payment or any final payment to  a  foreign  contractor  shall  be  made  unless  such  contractor shall furnish satisfactory proof that all taxes  due the commissioner of taxation and finance by  such  contractor  under  the provisions of or pursuant to a law enacted pursuant to the authority  of article nine, nine-A, twelve-A, twenty-one, twenty-two, twenty-eight,  twenty-nine  or thirty of the tax law have been paid. The certificate of  the commissioner of taxation and finance to the  effect  that  all  such  taxes have been paid shall be, for purpose of this paragraph, conclusive  proof  of  the  payment  of such taxes. The term "foreign contractor" as  used in this subdivision means, in the case of an individual,  a  person  who  is  not a resident of this state, in the case of a partnership, one  having one or more partners not a resident of this  state,  and  in  the  case of a corporation, one not organized under the laws of this state.    8.  Contingencies  and extra work. Whenever the corporation determines  that from any unforeseen cause the  terms  of  any  contract  should  be  altered to provide for contingencies or extra work, it may, if funds are  available  for  payment  of the cost thereof, issue an order on contract  therefor to the contractor, a copy of which  shall  be  filed  with  the  director  of  the  budget  and  the  state  comptroller.  The  estimated  expenditure pursuant to the order on contract  shall  not  increase  the  total  amount  of  the  primary contract until the estimated expenditure  shall have been approved by the corporation  and  a  duplicate  of  such  approval  shall have been filed with the comptroller. No such extra work  shall be commenced or undertaken until the  corporation  has  issued  an  order on contract as herein provided.    When  such  order  on  contract  provides for similar items of work or  materials which increase or decrease the itemized quantity provided  for  in  the primary contract, the price to be paid therefor shall not exceed  the unit bid price in the primary contract for such items. Agreed prices  for new items of work or materials may be incorporated in the  order  on  contract  as  the  corporation  may  deem  them  to be just and fair and  beneficial to the state, including the corporation.Whenever the corporation also determines  that  in  the  cases  herein  provided it is impracticable for it to ascertain in advance the just and  fair  prices to be paid by the state for new items of work or materials,  the order on contract therefor may provide for performance of  the  work  and  the  furnishing  of the materials and equipment, in which event the  contractor shall keep and shall make  available  at  all  times  to  the  corporation  such  accounting  records,  data  and  procedure  as may be  required by the corporation.

State Codes and Statutes

State Codes and Statutes

Statutes > New-york > Cal > Article-4 > 30

§  30.  Contracts  for improvement, maintenance or repair of the canal  system. Upon  the  completion  and  final  approval  of  the  plans  and  specifications  for  the improvement, maintenance or repair to the canal  system, contracts therefor shall be executed as provided herein.    1. Advertising for proposals.  The  corporation  shall  advertise  for  proposals in accordance with plans and specifications prepared by it for  such  improvement,  maintenance  or  repair  of  the canal system as the  corporation deems it  expedient  to  have  performed  by  contract.  The  advertisement  shall  be  limited  to  a  brief  description of the work  proposed to be done, with an announcement stating where the maps,  plans  and specifications may be seen, the terms and conditions under which the  proposals  will  be  received, the time and place where the same will be  opened, the amount of the draft or  certified  check  to  accompany  the  proposal,  and  such other matters as the corporation may deem advisable  to include therein. Such advertisement shall be published at least  once  in  each  week  for two successive weeks in a newspaper published at the  county seat of the county in which such canal work is  to  be  performed  and  in  such  other  newspapers as the corporation may designate. If no  newspaper is published at such county seat, then the publication of  the  advertisement shall be in such newspaper or newspapers within the county  as  the  corporation  may  select.  If  no newspaper is published in the  county, the publication of the advertisement shall be in such  newspaper  or  newspapers  in  an  adjoining  county  as  may  be  selected  by the  corporation. Failure of such newspaper,  published  in  such  county  or  adjoining  county,  to  publish  such  advertisement as provided in this  subdivision or as directed by the corporation shall not  invalidate  the  publication  of  advertisement for proposals provided such advertisement  is published in another newspaper or trade publication,  which  will  be  most  likely  to  give  adequate  notice  to  contractors  of  the  work  contemplated and of the invitation  to  submit  proposals  therefor,  at  least  once in each week for any two successive weeks preceding the date  on which proposals described in such advertisement are  to  be  received  and opened.    2.  Proposals.  Each  proposal shall specify the correct gross sum for  which the work will be performed and shall also include the amount to be  charged for each item specified on  the  proposal  estimate  sheet.  The  corporation  may  prescribe and furnish forms for the submission of such  proposals and may prescribe the manner  of  submitting  the  same  which  shall  not  be  inconsistent  herewith. Accompanying each proposal there  shall be a certified check or bank cashier's check for the amount of the  bid deposit, to be  fixed  by  the  corporation  and  specified  in  the  advertisement  for proposals. The checks of the two low bidders shall be  deposited by the corporation in a special  account.  Provided,  however,  that  if  prior  to  or upon receipt of said checks by the corporation a  bidder who is one of the two low bidders shall have duly filed a bond as  hereinafter provided, the corporation shall  forthwith  return  to  said  bidder  his  aforesaid  check  without depositing the same. If alternate  proposals are taken, the checks of the two low bidders of all  alternate  proposals shall be deposited. All checks other than those of the two low  bidders  shall  be returned promptly by the corporation. Notwithstanding  the provisions of any general or special law, the money  represented  by  the checks of the two low bidders shall be paid from the special account  when  the  contractor has duly executed and delivered to the corporation  the contract and the bond or bonds required by law for  the  performance  of  the  work of a public improvement for the state of New York, or upon  the rejection of all bids. The low bidder,  in  the  discretion  of  the  corporation, and the second low bidder, as a matter of right, may at any  time  after  the  opening  of  the  respective  proposals, file with thecorporation a bond, the principal amount of which shall at  least  equal  the  amount of the respective bidder's check, theretofore deposited with  his proposal, in the form prescribed by the corporation, with sufficient  sureties,  to  be approved by the corporation, conditioned that the said  bidder will execute a contract and furnish  such  performance  or  other  bonds  as  may  be  required  by law in accordance with the terms of the  bidder's  said  proposal.  If  a  bidder  complies  with  the  aforesaid  provisions, the corporation shall forthwith return the money represented  by the check of such bidder.    In case the bidder to whom the contract shall be awarded shall fail to  execute  such  contract  and  bond, the moneys represented by such check  shall be regarded as liquidated damages and shall be  forfeited  to  the  state and shall be deposited by the corporation with the commissioner of  taxation  and  finance to the credit of the general fund. The gross sums  indicated on the proposals when  opened  shall  be  publicly  read.  The  corporation  shall  keep the bids for the several items of the proposals  confidential until an award of the contract is  made,  after  which  the  proposals shall be subject at all reasonable times to public inspection.    3. Award of contract. The contract for the improvement, maintenance or  repair  of  any  part of the canal system shall be awarded to the lowest  responsible bidder,  as  will  best  promote  the  public  interest.  No  contract  shall be awarded to a bidder other than the lowest responsible  bidder without the written approval of the comptroller. The  lowest  bid  shall  be  deemed  to be that which specifically states the lowest gross  sum for which the entire work will be performed, including all the items  specified in the estimate therefor. The lowest bid shall  be  determined  by  the  corporation  on the basis of the gross sum for which the entire  work will be performed, arrived at by a correct computation of  all  the  items specified in the estimate therefor at the unit prices contained in  the bid.    4.  Rejection  of  proposals.  The  corporation  may reject any or all  proposals and may advertise  for  new  proposals  as  provided  in  this  section,  if,  in  its  opinion,  the best interest of the state and the  corporation will thereby be promoted.    5. Form of contract. The  corporation  shall  prescribe  the  form  of  contract  and  may include therein such matters the corporation may deem  advantageous to the state and the corporation.    6. Bond of contractor. Each contractor before entering into a contract  for such improvement, maintenance or repair of the  canal  system  shall  execute  a  bond  in  the  form  prescribed  by  the  corporation,  with  sufficient sureties, to be approved by  the  corporation,  on  condition  that  it  will  perform  the  work  in  accordance with the terms of the  contract and the plans and specifications, and that it will commence and  complete the work within the time prescribed in the contract.  The  bond  shall  also provide against any direct or indirect damages that shall be  suffered or claimed on  account  of  such  construction  or  improvement  during the time thereof, and until the work is finally accepted.    7.  Payments on contracts, state taxes. The contract shall provide for  partial payments as the work progresses as hereinafter provided:    (a) Ten per centum shall be retained from  each  progress  payment  or  estimate  until  the  contract work is fifty per centum completed, after  which no further moneys shall be retained from any progress payments  or  estimates  paid  thereafter,  and when the entire contract work has been  completed and accepted, the corporation shall, pending  the  payment  of  the  final estimate, pay not to exceed fifty per centum of the amount of  the retained percentage.    (b) Whenever in the judgment of the corporation the withholding of the  retained percentage on account of the  closing  of  the  working  seasonwould  be  an injustice to the contractor, the corporation may, provided  the district engineer certifies that the essential items in the contract  have been completed in accordance with the terms of the contract and the  provisions  of  this chapter, direct the district engineer to include in  the final account such uncompleted items and pay therefor  at  the  item  prices   in  the  contract  upon  the  contractor  depositing  with  the  corporation securities equal to double the  value  of  such  uncompleted  work.  The  deposit  may  be  used  by  the  corporation to complete the  uncompleted portion of  the  contract  and  shall  be  returned  to  the  contractor  if  it  completes the uncompleted portion within a specified  number of working days after it has been notified to  proceed  with  the  work.    (c)  No  certificates  approving  or  authorizing  a  partial or final  payment shall be made by the corporation until it is satisfied that  all  laborers  employed on the work have been paid for their services for the  last payroll period preceding the said partial  or  final  payment.  The  corporation  may,  if  it  deems necessary, require an affidavit to such  effect from the contractor or it may depend on any other source which it  deems proper for such information.    (d)  Contracts  in  force  at  the  date  of  the  enactment  of  this  subdivision  may,  in  the  discretion of the corporation, be amended to  provide for  the  withholding  and  the  payments  contemplated  by  the  provisions  of  paragraph  (a)  of  this  subdivision,  if the surety or  sureties upon the performance and labor and material bonds  given  by  a  contractor upon any such contract shall consent in writing thereto.    (e)  No  such  certificate  authorizing or approving the first partial  payment or any final payment to  a  foreign  contractor  shall  be  made  unless  such  contractor shall furnish satisfactory proof that all taxes  due the commissioner of taxation and finance by  such  contractor  under  the provisions of or pursuant to a law enacted pursuant to the authority  of article nine, nine-A, twelve-A, twenty-one, twenty-two, twenty-eight,  twenty-nine  or thirty of the tax law have been paid. The certificate of  the commissioner of taxation and finance to the  effect  that  all  such  taxes have been paid shall be, for purpose of this paragraph, conclusive  proof  of  the  payment  of such taxes. The term "foreign contractor" as  used in this subdivision means, in the case of an individual,  a  person  who  is  not a resident of this state, in the case of a partnership, one  having one or more partners not a resident of this  state,  and  in  the  case of a corporation, one not organized under the laws of this state.    8.  Contingencies  and extra work. Whenever the corporation determines  that from any unforeseen cause the  terms  of  any  contract  should  be  altered to provide for contingencies or extra work, it may, if funds are  available  for  payment  of the cost thereof, issue an order on contract  therefor to the contractor, a copy of which  shall  be  filed  with  the  director  of  the  budget  and  the  state  comptroller.  The  estimated  expenditure pursuant to the order on contract  shall  not  increase  the  total  amount  of  the  primary contract until the estimated expenditure  shall have been approved by the corporation  and  a  duplicate  of  such  approval  shall have been filed with the comptroller. No such extra work  shall be commenced or undertaken until the  corporation  has  issued  an  order on contract as herein provided.    When  such  order  on  contract  provides for similar items of work or  materials which increase or decrease the itemized quantity provided  for  in  the primary contract, the price to be paid therefor shall not exceed  the unit bid price in the primary contract for such items. Agreed prices  for new items of work or materials may be incorporated in the  order  on  contract  as  the  corporation  may  deem  them  to be just and fair and  beneficial to the state, including the corporation.Whenever the corporation also determines  that  in  the  cases  herein  provided it is impracticable for it to ascertain in advance the just and  fair  prices to be paid by the state for new items of work or materials,  the order on contract therefor may provide for performance of  the  work  and  the  furnishing  of the materials and equipment, in which event the  contractor shall keep and shall make  available  at  all  times  to  the  corporation  such  accounting  records,  data  and  procedure  as may be  required by the corporation.