ALBERT G. RITCHIE, GOVERNOR. 983

revision at said hearing. The Mayor and Town Council may
change the classification of properties from time to time, as said
properties change in the uses to which they are put. Said as-
sessment shall be levied for water supply and sewerage construc-
tion and shall be based for each class of property upon the num-
ber of front feet abutting upon the street, lane, alley or right-
of-way in which the water pipe or sewer is placed; provided,
however, that no lot in a sub-division property shall be assessed
on more than one side, that corner lots in this class shall be
assessed on that frontage toward which the building should
naturally face, and that all lots in this class shall be assessed
for their full frontage even though a water main or sewer may
not extend along the full length of any boundary; that in case
of irregular shaped lots, and shallow lots fronting on more than
one street in which a water main or sewer is placed, the Mayor
and Town Council may assess such length of frontage as it
deems reasonable and fair; and provided, further, that in case
of small acreage and agricultural property, where a water main
or sewer does not extend along the whole frontage, the mayor
and town council may assess such length of frontage as they
deem reasonable and fair. Front foot assessments for water
supply and sewerage construction shall be uniform for each
class of property throughout the town. The amount of the
assessment per front foot for each class of property for water
mains and sewers shall be determined annually by the Mayor
and Town Council as costs and conditions require. Said assess-
ments shall be paid annually beginning in the year such con-
struction is begun, by all properties located as above specified,
for a period of years co-extensive with the period of maturity of
the bonds out of the proceeds of which such construction was
done; provided, however, that any owner of property may, at
his option, within one year from the time said front foot assess-
ment or benefit charge is levied extinguish the same by payment
in cash, in one sum, of the proportion of the estimated cost of
the project, of which the construction abutting upon his prop-
erty is a part, represented by the number of front feet which
he is assessed, with interest at the rate of six per cent, per an-
num from the date of said levy, less any annual payment that
may have been made thereon. The Mayor and Town Council
however, in estimating said cost for the purpose of extinguish-
ment may add thereto a reasonable margin to protect itself
against possible changes in the cost of construction and loss of
interest. All sums received under such plan of extinguishment
shall be preserved intact by said Mayor and Town Council, less