Said commissioners shall, after the time for appeal is past, assess against each parcel, tract and easement of and in said annexed lands reasonable and just benefits, and shall assess against said lands for construction and repairs such sum as shall be just. If lands similarly situated and benefited are found in said district the annexed lands shall be assessed a like sum of benefits and damages as said lands in the said district to which they are sought to be annexed, and a sum for construction of said work which shall be equal to all sums assessed for the complete construction of the drainage system in the district to which they are sought to be annexed against lands having the same assessment of benefits in said district.
W.S. 41-9-269