468.66  Bids required.
  In case the board shall finally determine that any such changes as defined in section 468.62 shall be made involving an expenditure of twenty thousand dollars or more, the work shall be let by bids in the same manner as is provided for the original construction of such improvements.
[C24, 27, 31, 35, 39, §7493; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §455.73]
89 Acts, ch 126, §2
CS89, §468.66
94 Acts, ch 1051, §6; 2006 Acts, ch 1056, §2; 2010 Acts, ch 1091, §3, 4
See §468.34, 468.35