Subd. 1. Call for bids.

After an establishment order has been made by the managers directing the establishment of a project, the managers shall call for bids for the construction or implementation of the work and give notice by publication specifying the time and place when the bids will be opened for awarding a contract for the construction or implementation of the project. The contract may be awarded in sections or as a whole, as directed by the managers.

Subd. 2. Bid notice.

A bid notice shall be published in at least one of the newspapers in the state where notices are usually published.

Subd. 3. Awarding of contract.

1. (a) At a time and place specified in the bid notice, the managers may accept or reject any or all bids and may award the contract to the lowest responsible bidder. The bidder to whom the contract is to be awarded must give a bond, with ample security, conditioned by satisfactory completion of the contract.
2. (b) Bids must not be considered which in the aggregate exceed by more than 30 percent the total estimated cost of construction or implementation.
3. (c) The contract must be in writing and be accompanied by or refer to the plans and specifications for the work to be done as prepared by the engineer for the watershed district. The plans and specifications shall become a part of the contract.
4. (d) The contract shall be approved by the managers and signed by the president, secretary, and contractor.