[Adopted 12-28-1967 as Ch. 57, Art. I of the 1967 Code]
[Amended 9-25-1986]
The lines and grades of all sidewalks must conform
to the lines and grades as shown on the map of such street, as prepared
and/or approved by the Borough Engineer.
[Amended 9-25-1986]
The width of all sidewalks shall be four feet.
[Amended 9-25-1986; 4-12-1993]
The specifications for the laying and construction
of concrete sidewalks in the Borough of Allendale shall be as follows:
A.
Grading. The sidewalks are to be graded from the curbline
to the property line, to the proper grade of 1/4 inch to one foot
rise. Such portions as are above grade shall be excavated, and such
as are below grade shall be filled in. Where the fill is more than
six inches, it must be placed in layers and thoroughly compacted.
All fill shall be compacted. Where tree roots are encountered, the
Borough Engineer shall determine the need to install a deep root control
barrier system to prevent roots from growing beneath the sidewalk.
B.
Foundation.
(1)
The concrete flags shall be four feet in width, accurately
laid to the proper line and grades approved by the Borough Engineer.
(2)
The walks shall be excavated four inches below the
finished grade of the sidewalk for at least the full width of the
concrete flag. If unsuitable subgrade soil is present, clean, granular
material approved by the Borough Engineer shall be placed and compacted
to the level of four inches below the finished walk grade.
C.
Concrete mix.
(1)
Concrete mix shall have a design compressive strength
of 3,500 pounds per square inch at 28 days.
(2)
The concrete, when placed in the forms, shall be well
rammed and tamped until the mortar flushes to the surface and shall
be four inches in depth finished in place. Bituminous-cellular-type
and preformed-bituminous-type expansion joint material shall be placed
every 10 feet and shall extend completely through the four-inch thickness.
Score marks will be made at the five-foot spacing between expansion
joints.
D.
Finishing or wearing surface.
(1)
The mortar shall be leveled off to a proper grade
with a straightedge and, when sufficiently firm, shall be rubbed down
to a true and even surface with the proper tools, in a uniform manner
satisfactory to the Borough Engineer, finished with a wooden float
to an even continuous surface and lightly brushed with a dampened
brush as a final finish. The wearing surface shall be blocked off
in sections of five feet in length.
(2)
Retempering mortar or concrete, i.e., remixing with
water after it has partially set, shall not be permitted.
(3)
After the addition of water to the concrete mixture,
it shall be handled rapidly to the place of final deposit, and under
no circumstances shall concrete be used which has partially set before
final placing.
(4)
When completed, all walks shall be kept moist, protected
from traffic and the elements for two or three days, according to
the weather conditions. The forms will be removed with great care,
and upon their removal, the edges of the walk shall be protected in
a suitable manner, and the protection will be such as to prevent any
damage or intrusion on the work until it has hardened.
(5)
The forms used in constructing sidewalks may be approved
iron sidewalk forms or wood strips. If wood strips are used, they
must be thoroughly staked, etc., and be not less than two inches by
four inches.
E.
Driveway apron. If concrete driveways are required
in sidewalks, they shall be constructed of the same quality as the
concrete sidewalks already described, but the concrete shall be six
inches thick. The slope of the driveway apron shall extend in a continuous
grade from the top of the depressed curb to the profile line of the
back edge of the walk as dictated by the cross slope of one-fourth-inch
rise for each horizontal foot of width as measured from the face of
the curb to the back edge of the walk. In the event that this grade
is in conflict with the level of a preexisting driveway surface and
to modify the driveway would entail extensive reconstruction, the
grade at the back of the drive apron may then be adjusted to meet
the driveway surface for the required width. The length of transition
from the normal grade at the back of the walk to the grade required
to match the driveway shall be a minimum of five feet or as approved
by the Borough Engineer.
[Added 9-25-1986]
Sidewalks, curbs and driveway openings located
on a dedicated or accepted public right-of-way shall be considered
as structures and shall be subject to all administrative requirements
of the Building Code[1] as regards permits and inspections. The sidewalks and
curbs shall be installed in compliance with the Revised Land Subdivision
Ordinance of the Borough.[2]
