Furnish all labor, materials, equipment, and
incidentals required to construct easements that will allow access
to maintenance and construction equipment.
A.
Woven geotextile shall be a woven polypropylene product.
(1)
It shall meet or exceed the following physical requirements:
|
Geotextile Property
|
Test Method
|
Minimum Property Requirements
| |
|---|---|---|---|
|
Apparent Opening Size (US Standard Sieve Size)
|
ASTM D4751-87
|
No. 30 sieve
| |
|
Permittivity (1/second)
|
ASTM D4491-85
|
0.02
| |
|
Grab Tensile Strength (pounds)
|
ASTM D4632-86
|
270
| |
|
Puncture Strength (pounds)
|
ASTM D4833
|
100
| |
|
Mullen Burst (psi)
|
ASTM D3786
|
550
| |
|
Trapezoid Tear (pounds)
|
ASTM D4533-85
|
100
|
(2)
To prevent damaging the fabric, the contractor shall
exercise necessary care while transporting, storing and installing
the fabric. Prior to installation, the fabric shall be protected from
weather, direct sunlight or other ultraviolet exposure and from dust,
mud, dirt, debris and other elements which may affect its performance.
Fabric which is torn, punctured or otherwise damaged shall not be
placed. After placement, fabric shall be covered within five days.
Traffic or construction equipment will not be permitted directly on
the geotextile.
A.
A fifty-foot-wide construction easement shall be cleared
and grubbed according to plans or as specified by the Town's Engineer.
Caution shall be exercised by the contractor so as not to disturb
areas outside the limits of work.
B.
All loam shall be stripped within the limits of the
twenty-foot permanent utility easement and stockpiled for future use
in an authorized area.
A.
All utility lines and structures shall be installed
and tested as outlined herein.
B.
Construction of access drive.
(1)
A twelve-foot-wide access drive shall be constructed
directly over the center of the utility main installed within the
twenty-foot permanent easement. Drainage culverts shall be installed
according to plans or as directed by the Town's Engineer.
(2)
The access drive shall be cut to subgrade at a minimum
of 18 inches from finished grade or as specified on the plans. The
geotextile shall be placed in accordance with the plans and manufacturer's
requirements. Prior to placement of the fabric, the site shall be
prepared to provide a smooth surface which is free from debris, obstruction,
and depressions which could result in gaps, tears or punctures in
the fabric during cover operations. The fabric shall be unrolled loosely
and positioned as evenly as possible on the surface to eliminate wrinkles
and folds. Pins or staples may be used to anchor the fabric as directed
by the Engineer. The fabric should be pinned in a loose condition
so that it easily conforms to the ground surface and will give to
the inward movement of the overlying material. Fabric which is damaged
after placement shall be replaced, repaired by stitching or patched.
Patches shall be of the same material as the placed geotextile. The
patch shall be joined to the existing fabric using overlapped seams
as directed by the Engineer.
(3)
Twelve inches of bank-run gravel shall be placed over
the fabric in accordance with the plans. Fabric which is damaged as
a result of careless or improper placement of gravel, grading techniques
or equipment traffic above the fabric shall be repaired or replaced
at the expense of the contractor. Six inches of crushed gravel shall
be placed over the bank-run gravel and be graded to match the surrounding
topography or as directed by the Town's Engineer.
(4)
Screened loam at an average depth of two inches shall
be placed over the access drive and shall be seeded to discourage
use by unauthorized vehicles.
