Proposals for the work of making improvements provided for in this chapter that exceed the amount provided for construction of a public improvement under section 48-01.2-02 must be advertised for by the board in the official newspaper of the county where the district office is located once each week for two consecutive weeks. The board may cause the work on two or more improvements to be combined in one advertisement and one contract awarded pursuant to that advertisement. The advertisement for bids must: 1. Specify the work to be done according to the plans and specifications on file in the office of the district; 2. Call for bids upon the basis of cash payment for the work; 3. State the time within which the bids will be received; and 4. State the time within which the work on the improvement is to be completed. The board may require bidders to state also the rate of interest, not exceeding seven percent per annum, which the bonds to be received and accepted by the bidder at par in payment for the work are to bear.
61-35-89. Bid to be accompanied by a bond - Bond retained upon failure of bidder to contract - Amount of bond. Each bid for any work to be done under this chapter must be accompanied by a separate envelope containing a bidder's bond in the amount of five percent of the amount of the bid, executed as provided in this chapter and running to the district that the bidder will enter into a contract for performance of the work in case a contract is awarded to the bidder. If any bidder to whom a contract is awarded fails or refuses to enter into the contract when requested to do so, the bond accompanying the bidder's bid must be retained by the district as liquidated damages for the failure. The bond must be delivered to the district office and credited to the fund from which the consideration for the work is payable. The sufficiency of any bond filed by a bidder must be determined by the board at the time of considering bids.