New Mexico Statutes Chapter 4. Counties § 4-55A-14. Improvement district; advertising for bids; county may do work; contribution by governmental agency

A. If a continuous area proposed to be improved on any one street or road exceeds five hundred feet in length, the board, before using county equipment and employees to construct the improvement, shall advertise for bids for the construction of the improvement and award the contract for the construction of the improvement to the lowest responsible bidder; provided, however, a county may construct the improvement using the same specifications upon which bids were requested if:

B. A county using county owned or leased equipment and county employees in constructing an improvement may cooperate with another governmental agency which contributes money, labor or a portion of the cost of materials towards completion of the improvement.