7-12-2151. Assessment of costs. (1) To defray the cost of making or acquiring any of the improvements provided for in this part, including incidental expenses, the board of county commissioners shall assess the entire cost of the improvements against benefited lots, tracts, or parcels of land in the district, based upon the benefits received, and shall adopt one or any combination of the following methods of assessment for each improvement made or acquired for the benefit of the district:

(a) Each lot, tract, or parcel of land assessed in the district may be assessed with that part of the whole cost which its assessable area bears to the assessable area of all the benefited lots, tracts, or parcels in the district, exclusive of streets, avenues, alleys, and public places. For the purposes of this subsection (1)(a), "assessable area" means an area of a lot, tract, or parcel of land representing the benefit conferred upon the lot, tract, or parcel by the improvement. Assessable area may be less than but may not exceed the actual area of the lot, tract, or parcel.

(b) Each lot, tract, or parcel of land assessed in the district may be assessed with that part of the whole cost of the improvement based upon the assessed value of the benefited lots or pieces of land within the district, if the board determines the assessment to be equitable in proportion to and not exceeding the benefits received from the improvement by the lot, tract, or parcel.

(c) Each lot, tract, or parcel of land in the district abutting upon the street where the improvement has been made may be assessed in proportion to its lineal feet abutting the street.

(d) Each lot, tract, or parcel of land in the district may be assessed an equal amount based upon the total cost of the improvement.

(e) Each lot, tract, or parcel of land in the district served by a utility connection may be assessed an equitable lump sum for the connection based on the bid price in the applicable contract.

(2) The board may use one or any combination of methods of assessment in a single special improvement district and, if more than one improvement is undertaken, need not assess each lot, tract, or parcel in the district for the cost of all the improvements. If the method of assessment described in subsection (1)(d) is used, the resolution of intention under 7-12-2103 and notice under 7-12-2105 must provide that if an increase occurs in the number of benefited lots, tracts, or parcels within the boundaries of the district during the term of the bonded indebtedness, the assessment per lot, tract, or parcel then in the district will be recalculated as provided in subsection (4).

(3) The board in its discretion may pay the whole or any part of the cost of any street, avenue, or alley intersection out of any funds that are available to it for that purpose or to include the whole or any part of the costs within the amount of the assessment to be paid by the benefited property in the district.

(4) (a) If the method specified for assessment is that provided in subsection (1)(d) and an increase occurs in the number of benefited lots, tracts, or parcels within the boundaries of a district created as provided in this part during the term of bonded indebtedness that is payable from the assessments, the board shall recalculate the amount assessable to each lot, tract, or parcel. The board shall comply with the provisions of 7-12-2158 through 7-12-2160 in adopting the recalculated amount.

(b) The board shall base the recalculation on the amount of the district's outstanding bonded indebtedness for the current fiscal year and shall spread the assessments across the district based on the number of benefited lots, tracts, or parcels within the boundaries of the district as of July 1 following the action that resulted in the increase in the number of benefited lots, tracts, or parcels.