Assessment liens for charges and expenses authorized in this subpart, except as herein provided, shall insofar as feasible be governed by laws governing assessment liens for municipal improvements. All powers, duties, and authority relative to municipal improvements vested by the laws in municipal governing bodies, including collection of assessments for the cost of the improvements, are vested in the county commission. All assessments may be enforced, contested, and appeals therefrom taken in the manner prescribed for enforcing municipal improvement assessments. Liens for county improvement assessments shall have the same force and effect as liens for municipal improvement assessments.