A.
Furnish all labor, materials, equipment, and incidentals
required to replace all pavement removed over trenches or otherwise
disturbed by the contractor operations.
B.
Streets, driveways, parking areas or sidewalk pavement
damaged or disturbed by the contractor's operations shall be repaired,
replaced, or restored by the contractor in accordance with the requirements
specified herein and as directed by the Engineer at no additional
expense to the owner.
C.
Except as otherwise specified herein, the material
and construction shall be in accordance with the "Standard Specification
for Road and Bridge Construction," New Hampshire Department of Transportation
(NHDOT), latest edition, including all addenda.
C.
Base course pavement; wearing course; temporary pavement.
(1)
Base course pavement shall be three-fourths-inch Type
B as specified in the New Hampshire Department of Public Works and
Highways "Standard Specifications for Road and Bridge Construction."
(2)
Wearing course shall be three-eighths-inch Type F
as specified in the Standard Specifications referenced above.
(3)
Temporary pavement shall be one-half-inch Type C as
specified in the Standard Specifications referenced above.
A.
All trenches shall be paved immediately following
construction unless otherwise noted on the plans or directed by the
Engineer.
B.
The contractor shall provide a mechanical sweeper
and shall sweep clean all roads used or in the construction areas
as requested by the Engineer. This shall be done as construction progresses
to further control the dust nuisance caused by unpaved trenches in
roadways and other areas. Upon completion of all road work, the contractor
shall sweep clean the final work.
C.
Backfill; temporary patches.
(1)
Trenches shall be backfilled to within 22 inches of
final grade as specified herein.
(2)
The contractor shall place 12 inches of bank-run gravel,
eight-inch crushed gravel, and two inches of temporary pavement. Gravel
materials shall be thoroughly compacted by hand or mechanical means
in layers not to exceed six inches. Each backfill layer shall be 95%
of its optimum density.
(3)
Temporary patches shall remain in place for a minimum
of 60 days but not more than 120 days. The contractor shall have the
responsibility to periodically inspect temporary pavement areas and
repair as necessary, especially during the winter months when the
temporary pavement remains in place for an extended period.
(4)
Use of cold patch materials is specifically prohibited
for temporary patch.
D.
All digging up, protecting, and replanting of hedges,
shrubs, trees, and plants, along with stripping and stockpiling of
all topsoil where it exists, and replacement of the original earth
cover, including regrading and cleanup, shall be the sole responsibility
of the contractor.
A.
At the end of the stabilization period, the temporary
patch will be cut out and the trench trimmed with neat straight cuts
and square corners a minimum distance of 12 inches beyond the limits
of the temporary patch or areas of observed settlement, whichever
is greater. The contractor will insure this requirement is adhered
too.
B.
The contractor shall remove the temporary asphalt
and crushed gravel as needed to obtain four inches of permanent pavement
required. A tack coat shall be applied along all joints.
C.
Supply and place 2 1/2 inches of three-fourths-inch
Type B base course asphalt and 1 1/2 inches of three-eighths-inch
Type F finish course asphalt. Paving shall be allowed if the air temperature
is at least 45º F. and rising and the area is exposed to the
sun.
D.
Rolling shall be done with a self-propelled roller
weighing not less than eight tons and shall continue until a firm,
even surface true to the lines and grades is obtained.
E.
Newly paved trenches shall be either bonded to the
existing pavement by an approved means of infrared heat sealing or
overlaying by one inch of Type F pavement over the entire area.
F.
All trenches shall be overlayed the entire width of
roadway and 30 feet beyond the edges of the trenches along the length
of the roadway. The new pavement shall be keyed into the existing
pavements as directed by the Engineer. Finish course paving shall
be placed by machine method in accordance with New Hampshire Department
of Public Works and Highways "Standard Specifications for Road and
Bridge Construction."
All sidewalks, whether bituminous concrete or
cement concrete, interfered with during the construction of sanitary
sewer main and/or sewer service connections shall be rebuilt by the
contractor in accordance with the following specification:
A.
Cement concrete. The foundation shall be at least
six inches of well-compacted bank-run gravel. The concrete shall be
3,000 pounds in strength, four inches in thickness, reinforced with
No. 4 four-inch by six-inch mesh and wood flat finished. Expansion
joints (3/4 inch open) shall be provided at least every 20 feet; dividing
joints shall be of an approved type. It shall be compacted to 95%
of its optimum density.
B.
Bituminous concrete. The foundation shall be 12 inches
of bank-run gravel as specified above (material and compaction). The
wearing surface shall be laid in two courses, a one-and-one-half-inch
bottom course and a one-inch top course, thickness measured after
compaction. The material and application shall conform to the specifications
outlined for roadway surfacing. All edges of the walks shall be formed
with wood screeds which are securely anchored and left in placed.
The sidewalk shall meet existing sidewalk widths and have a slope
of 1/4 inch per foot from the back edge of the sidewalk towards the
roadway.
