A.
During the progress of the work, the holder of the permit shall provide
and maintain such fences, barriers, "street closed" and warning signs,
yellow lights and other danger signals and watchmen as may be necessary
to prevent accidents to the public, pursuant to and in compliance
with the standards established by PADOT as set forth in Publications
212 and 213, as may be amended or supplemented from time to time.
B.
The amount of trench opened, and also the amount unfilled at the
conclusion of the workday, if any, shall at all times be subject to
the decision of the Township Engineer.
C.
Before initiation of the work, the permit holder shall notify the
Township Public Works Director to allow for the supervision and inspection
of the backfill and restoration.
D.
All openings or excavations of streets, excepting drill holes, shall
be cut with a power saw and not with an air jackhammer or similar
devices.
E.
Any person opening or excavating any street shall, upon completion
of the project and after notification of the Township, immediately
and completely backfill such openings or excavations, mechanically
tamping the same so as to prevent any settling thereof prior to the
expiration of the permit, shall restore the surface to the same condition
as it was prior to construction, and shall remove from the site of
work all debris, tools and equipment.
F.
All backfilling and restoration shall be done in strict conformance
with the Standard Details for backfilling and restoration.
G.
Compaction tests of the street subgrade shall be performed when and
where directed by the Engineer in accordance with the procedure and
requirements previously described for street subgrade.
H.
Where test holes have been drilled, they shall be filled with asphalt
and sealed with hot tar.
I.
Permanent restoration. Backfilling of any opening and/or excavations
shall be as follows:
(1)
Before completing the backfilling of any trench, a saw cut shall
extend a minimum of 12 inches beyond the trench opening on all sides
of the excavation.
(2)
Initial backfill shall consist of a bed of 2B clean aggregate
(AASHTO No. 57) six inches under the utility conduit extending to
12 inches above the top of the conduit.
(3)
Final backfill:
(a)
PADOT 2A (Township street) or 2RC (state road) coarse aggregate
mechanically tamped in six-inch intervals to restoration depth; or
(b)
Suitable excavated material backfilled by hand or by approved
mechanical methods (new Township street only). Backfill shall be excavated
material approved by the Engineer and containing no stones larger
than four inches in maximum dimension. A maximum of 20% of the backfill
volume may be stones if the stones are evenly distributed within the
material. Excavated material shall be free of organic material, refuse,
and frozen materials, subject to limitations specified, and shall
be compacted in four inches loose lifts with mechanical tamper or
eight inches loose lifts if vibratory equipment is used.
(4)
Superpave 25.0 mm Base Course, extending a minimum of 12 inches
on each side of the trench, shall be placed on top of the backfill.
The improver shall be held responsible for any settlement within one
year of the final restoration.
(5)
Superpave binder and wearing courses, properly compacted and
graded to the surface of the street, shall be placed on top of the
base course and sealed at the saw cut with an approved asphalt sealing
material.
J.
Temporary restoration. During winter construction periods, the trench shall be backfilled as in the first three items of the specifications for permanent restoration above. The final step shall be temporary application of bituminous stockpile mix to bring the trench to street grade. Inspection shall be made periodically to maintain the trench in condition satisfactory to the Township. On or before May 31 following the date the street cut was first made, the improver shall permanently restore the cut as in Subsection I(4) and (5) above.
K.
Where street openings or excavations are done on a newly constructed
street or a street repaved within three years of the date of issuance
of the road occupancy permit, the street shall be resurfaced with
paving materials prescribed by the Township as follows:
L.
Where street openings or excavations are done on a street that has
not been repaved within three years of the date of issuance of the
road occupancy permit, the street shall be resurfaced with paving
materials prescribed by the Township as follows:
