After adopting a plan of irrigation works, the board shall secure bids as provided in chapter 48-01.2. Contracts for the purchase of materials must be awarded to the lowest and best bidder. The person to whom a contract may be awarded shall furnish a bond with good and sufficient sureties, to be approved by the board, payable to such district for its use, in an amount at least equal to the contract price, conditioned for the faithful and complete performance of the contract. The work must be done under the direction and to the satisfaction of the engineer and must be approved by the board. This section does not apply in case of any contract between the district and the United States, or any department, bureau, or agency thereof, or with the state water commission.
61-07-10. Expense of purchasing and acquiring property and constructing irrigation works - Insufficiency of bonds. The cost and expense of purchasing and acquiring property and of purchasing or constructing the irrigation works and improvements mentioned in this chapter shall be paid out of funds raised for such purpose. In case bonds, or the proceeds from the sale of any series of bonds, are insufficient for the purpose for which they were issued, additional bonds may be issued after submission of the question, at a general or special election, to the electors of the district. Additional improvement warrants may be issued to supplement warrants already authorized and issued. Such bonds and improvement warrants must be paid in the order of their priority.
61-07-11. District entering into agreements with others for payment of cost of establishing or constructing works. Any irrigation district, subject to the approval of the electors at a general or special election, may enter into an agreement or contract with the United States or with any department, bureau, or agency thereof, or with the state water commission, or with any person, firm, corporation, or limited liability company, for the establishment, construction, and completion of the necessary irrigation works, and in such contract or agreement may provide for the payment of the cost of establishing and constructing such works by the levy and collection of assessments against the lands benefited and by annual payments from funds raised by the collection of tolls and water charges paid by persons who have received and used water for the irrigation of their lands.