Michigan Compiled Laws, Chapter 280. Drain Code of 1956 § 280.222

Sec. 222. The commissioner shall first let the section at the outlet of the drain and shall let each remaining section in its order upstream: Provided, That the commissioner may let the drain in sections or as a whole, whichever appears to him the most practical: Provided further, That the commissioner shall reserve the right to reject any and all bids or proposals and proceed to let said drain in its entirety, and may adjourn such letting in the whole or in part, from time to time, to such other time or place to be by him at the time of such adjournment publicly announced as shall to him seem proper, but not in all more than 40 days from and after the time of letting as first advertised.