Mont. Code Ann. § 7-14-4703

When the public interest or convenience requires, the governing body of a municipality may pay, from general funds of the municipality or other available money or from the proceeds of assessments levied on lands benefited by the establishment of a pedestrian mall, the damages, if any, allowed or awarded to any property owner by reason of the establishment of a pedestrian mall. The resolution of intention must contain a statement that, subject to 15-10-420, an assessment will be levied to pay the whole or a stated portion of damages, if any, allowed or awarded to any property owner by reason of the establishment of the pedestrian mall.