3.06
A.
3.07
3.08
3.09
When directed by the Engineer, the Contractor shall furnish and install additional paving to
provide satisfactory transition for driveways and walkways impacted by a new curb-to-curb
pavement installation. The transition installation will be considered incidental to the
curb-to-curb pavement installation.
RAISING AND ADJUSTING CASTINGS:
In areas of permanent top course paving, existing municipally-owned catch basin and
manhole castings and valve boxes shall be raised to the proper grade where directed by the
Engineer.
Castings owned by private utilities shall be raised by their own forces. The Contractor
shall be responsible for coordinating this work.
The method of adjusting these castings shall be as follows: Cut around catch basin or
manhole castings a minimum of 8-inches from casting. Excavate and if required rebuild up to
18-inches of masonry below the bottom of the casting. Backfill with suitable material and
compact to bottom of casting. Place high, early strength cement or bituminous
concrete collar, as directed, to approximately 1 1/2-inches below the raised casting grade.
Masonry work shall conform to Section 02631, PRECAST MANHOLES.
In some areas, raising of castings may not be required. Where directed by the Engineer,
castings not to be raised shall have at least 12-inches of bituminous concrete pavement
chipped and removed around the casting. New bituminous concrete pavement shall be
placed and compacted around such castings to approximately 1-1/2-inches below the top of
the casting. The overlay course shall then be sloped down to the level of the casting.
The method of raising valve boxes shall be as follows: Cut around valve box a minimum of
8-inches from valve box. Excavate as required and raise the valve box. Pour high early
strength cement or bituminous concrete collar, as directed, to approximately 1-1/2-inches
below the top of the valve box.
Castings which need to be raised or adjusted to complete permanent curb to curb paving
shall be done immediately prior to paving.
CURBING:
The Contractor shall install curbing in accordance with the Construction Requirements as
specified in NHDOT Section 609.
SIDEWALKS:
The Contractor shall install sidewalks in accordance with the Construction Requirements as
specified in NHDOT Section 608.
PAVEMENT MARKINGS:
2019 CIPP Lining Project Road Restoration
Nashua, NH 02745-6
