311.21  Procedures.
  The preparation and approval of plans and specifications, the advertising for bids, the award and approval of contract, the supervision and inspection of construction work, and the approval and payment of claims on any secondary road assessment district project, shall be conducted in the manner provided in the laws for secondary road construction work generally.
[C24, 27, 31, 35, 39, §4749, 4752; C46, §311.6, 311.9; C50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §311.21]