All sidewalks, curbs and combined curbs, and gutters shall be constructed
of concrete conforming to, and manipulated in accordance with, the standard
details and specifications for such work of the Town of Union.
A permit is required from the Planning Director before any construction
is undertaken within the limits of a town street. Curbs may not be depressed
for more than 30 L.F. without written permission from the Planning Director.
Areas of depressed curbs must be separated by a minimum of 20 L.F. of regular
curb.
The town will not contribute toward the cost of sidewalk heating systems
for snow removal. Only two types of heating systems will be allowed in a town
street: twenty-four volt, or less, resistance heating systems using a grid
of rigid members, or circulating hot-water systems. Electrical systems using
wire heating elements and/or 110 volts will not be allowed, nor will steam
or high-pressure or hot-water systems. The heat-producing elements shall not
exceed a temperature of 180° F. and the surface temperature of the slab
shall not exceed 90° F.
No concrete may be placed until the project has been inspected by the
Sidewalk Inspector.
Sidewalks, curbs and combined curbs and gutters shall be constructed
in accordance with the construction standards of the Town of Union, using
job-mixed concrete conforming to the specifications for Concrete for Sidewalks,
Curbs and Gutters (Two-Course).[1]
Sidewalks shall be five feet wide, unless otherwise approved. Sidewalks
five feet or less in width shall have a total thickness of five inches. Sidewalks
over five feet in width shall have a total thickness of six inches.
Combined curb and gutters shall normally be installed except where standard
curbs are directed to be installed by the Town Engineer.
Sidewalks, curbs and combined curbs and gutters shall be constructed
to the line and grade established by the Town Engineer.
Six inches of run-of-bank gravel, or other approved porous material,
shall be used to replace unsuitable subgrade material where directed by the
engineer or where necessary to raise the level of the subgrade. Such porous
fill shall be thoroughly compacted to minimize future settling.
Nonextruding premolded expansion joints, extending completely through
the joint, shall be placed at intervals not greater than 50 feet in sidewalks,
curbs or combined curbs and gutters, along both street lines in sidewalks
at street corners, and in joints where private walks or driveways join sidewalks
or curbs.
Contraction joints, extending 1/3 of the way through from the top, shall
be placed at intervals equal to the width of sidewalks (up to eight feet maximum),
and every five feet in curbs and combined curbs and gutters. Contraction joints
may be sawed.
All material of every name and nature, necessary for the proper installation
of the work, shall be excavated down to the sub-grade elevation. Fill required
due to excessive excavation shall comply with the requirements for porous
fill.
Sidewalks and curbs shall be backfilled level with the top of the walk
or curb (after being compacted) for one foot. The ground shall then be sloped
to blend with the existing ground on not exceeding a 1 on 11/2 slope, to the
satisfaction of the Inspector. Where necessary, additional material shall
be brought to the site to complete the backfilling. All disturbed areas shall
be raked to remove large stones, lumps of dirt or concrete and other objectionable
material, which shall be removed from the site.
