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Technical Specifications FY2019 Paving Program

ITEM 604.46 — REPLACE CASTING
A. SCOPE

This work consists of replacing triangular, small diameter, and broken manhole frames and
covers, and catch basin frames and grates as shown on the drawings or as directed by the
Engineer. Any repair needed to the existing structure within the 12 inches below the bottom of
the casting shall be included and performed under this item. Any further repair needed to the
existing structure shall be performed under Item 604.4.

B. MATERIALS AND CONSTRUCTION

This item shall include all labor, materials (except for frames and covers), equipment, and
transportation necessary to replace castings, and to set them at new overlay elevation. Frames,
covers, and grates will be provided by the City of Nashua at 9 Stadium Drive in Nashua. This
item is to include removal of existing frame and cover, transport to City of Nashua drop off site
(Four Hills Landfill at 830 West Hollis St in Nashua), transportation of new frames and covers
from 9 Stadium Dr in Nashua to work area, placement and all excavation and pavement
restoration work.

All materials, labor, equipment, and transportation required to excavate, to lower structure,
remove the plate and place plate at locations of castings lowered to facilitate reclaim or milling
operations shall be subsidiary to Item 604.47. The Contractor is responsible for the management
of stormwater to all structures altered/dropped for paving operations for the duration of the
project until final pavement has been placed and accepted by the City and/or the Engineer.

The Contractor is responsible for the management of stormwater to all structures altered/dropped
for paving operations for the duration of the project until final payment has been placed and
accepted by the City and/or the Engineer.

Mortar shall comply with NHDOT Section 707. Brick shall comply with NHDOT 604.2.4 and be
AASHTO M91 Grade SS brick. Contractor shall provide the City with material slips certifying
that brick meets requirements.

Mortar shall be tooled into every vertical joint between bricks prior to installing a new horizontal
brick layer. Mortar between brick layers shall be 3/8” thick and fully cover all bricks in the layer.
Use of the weight of castings and additional brick layers to facilitate joint filling and further
spreading of mortar is not permitted. All brickwork shall be sealed on the outside and inside of
the structure with mortar. The casting frames shall be set in a ring of mortar extending to the
outer edge of the masonry. Mortar shall be placed on top of the bottom flange and smoothly
finished to have a slight slope that will shed water away from the frame.

All mortar shall be mixed with a cement mixer as approved by the Engineer. Mixing mortar by
hand/shovel will not be permitted.

Unless otherwise noted herein, this work shall conform to the latest approved City of Nashua

Standard Specifications for Road Construction, City of Nashua Standard Specifications for
Sewers and Drains, and the latest approved NHDOT Standard Specifications for Road and

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Technical Specifications FY2019 Paving Program

Bridge Construction. The most stringent specification shall apply unless otherwise directed by
the Engineer.

C. MEASUREMENT AND PAYMENT
Payment for replacing existing castings shall be at the contract unit price specified for each. This
payment shall include all materials, labor, equipment, and all else needed to complete the work

under this item.

Contractor shall record the number and locations of castings replaced for each street. Payment is
contingent upon submittal of quantities in a per structure, and per street format.

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Technical Specifications FY2019 Paving Program

ITEM 604.47 - DROP AND PLATE CASTING
A. SCOPE

This work consists of removing existing manhole casting, removing brick and mortar supporting
the casting, plating the hole over the structure, and backfilling the hole. Excavation, plate
removal, and final adjustment to proposed grade will be covered under Items 604.45, Item
604.46, and Item 604.4 as determined by the Engineer.

B. MATERIALS AND CONSTRUCTION

This work shall include all labor, materials, equipment and transportation necessary to drop and
plate the existing manhole castings prior to reclaim and milling as directed. Plates shall be of
sufficient strength to deal with traffic loading. Contractor shall be responsible for keeping
records identifying, with measurements, where all dropped castings are located. Contractor is
responsible for management of all castings once they are removed from the manholes, and for
locating all dropped castings when they need to be adjusted.

Removed castings shall not be stored on private property unless agreed to by the Engineer.

Unless otherwise noted herein, this work shall conform to the latest approved City of Nashua
Standard Specifications for Road Construction, City of Nashua Standard Specifications for
Sewers and Drains, and the latest approved NHDOT Standard Specifications for Road and
Bridge Construction. The most stringent specification shall apply unless otherwise directed by
the Engineer.

Cc. MEASUREMENT AND PAYMENT
Payment for drop and plate castings shall be at the contract unit price specified for each. All
castings regardless of size will be paid for as one (1) each. This payment shall include all

materials, labor, equipment, and all else needed to complete the work under this item.

Contractor shall record the number and location of castings dropped and plated for each street.
Payment is contingent upon submittal of quantities in a per structure, and per street format.

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Technical Specifications FY2019 Paving Program

ITEM 609.01 - GRANITE CURBING
A. SCOPE

This work shall consist of constructing curb as shown on the plans or as ordered by the Engineer.
Work includes furnishing, placing, and cleanup work associated with the installation of the curb.
Curb shall be installed on a properly graded, compacted bed of crushed gravel subgrade.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all materials, labor and equipment necessary for setting of granite
curb in accordance with relevant provisions of Section 609 of the NHDOT Standard
Specifications for Road and Bridge Construction, latest edition, and City of Nashua Standard
Specifications for Sidewalk Construction, latest edition. The most stringent specifications shall
apply unless otherwise directed by the Engineer.

C. MEASUREMENT AND PAYMENT
Granite curb will be measured by the linear foot to the nearest 0.1 foot, from end to end along the

lower edge of the exposed face of the curbing and shall include all required excavation and base
course material.

Payment for constructing granite curb shall be at the contract unit price per linear foot, complete

in place, and shall include full compensation for material, labor, equipment, and all else needed
to complete the work under this item.

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Technical Specifications FY2019 Paving Program

ITEM 609.5 -RESET GRANITE CURB
A. SCOPE

This work shall consist of removal, stockpiling and resetting granite curb as shown on the
drawings or as directed by the Engineer. Furnishing and placing all materials required for
resetting granite curb shall be included.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all materials, labor and equipment necessary for resetting granite
curb in accordance with relevant provisions of Section 609 of the NHDOT Standard
Specifications for Road and Bridge Construction, latest edition, and City of Nashua Standard
Specifications for Sidewalk Construction, latest edition. The most stringent specifications shall
apply unless otherwise directed by the Engineer.

C. MEASUREMENT AND PAYMENT

Reset Granite Curb will be measured by the linear foot to the nearest 0.1 foot, from end to end
along the lower edge of the exposed face of the curbing. Payment for this item shall be at the
contract unit price per linear foot, complete in place, and shall include all materials, labor,
equipment, and all else needed to complete the work under this item.

Contractor shall record the location and linear feet of granite curb reset for each street. Payment
is contingent upon submittal of quantities in a per street format.

Technical Specifications FY2019 Paving Program

ITEM 609.811 - BITUMINOUS CURBING

A. SCOPE

This work shall consist of constructing bituminous curbs as shown on the plans or as ordered by
the Engineer. Work includes all furnishing, placing, and cleanup work associated with the
installation of the curbing.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all materials, labor, equipment, and transportation necessary for
constructing bituminous curb as shown on the plans, or as directed by the Engineer. Construction
shall be in accordance with relevant provisions of Section 609 of the NHDOT Standard
Specifications for Road and Bridge Construction, latest edition. Surface preparation shall be
subsidiary.

C. MEASUREMENT AND PAYMENT

Bituminous curb will be measured by the linear foot to the nearest 0.1 foot, from end to end
along the lower edge of the exposed face of the curbing. Payment for constructing bituminous
curb shall be at the contract unit price per linear foot, complete in place, and shall include full
compensation for material, labor, equipment and all else needed to complete the work under this
item.

Contractor shall record the location and linear feet of bituminous curb installed for each street.
Payment is contingent upon submittal of quantities in a per street format.

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Technical Specifications FY2019 Paving Program

ITEM 616.7 - LOCAL TRAFFIC LOOPS 6’ X 50’ (2-4-2 TURN)

A. SCOPE

This work consists of furnishing all labor, materials and equipment necessary to install the
quadruple loop detectors as directed by the Engineer.

B. MATERIALS AND CONSTRUCTION

This item shall include all labor, materials and equipment necessary to install new quadruple
loop detectors 2-4-2 turn, in conjunction with the paving program. Loops shall be installed in the
pavement surface prior to final overlay or top course.

a. Installation shall be in accordance with the latest approved NHDOT Standard Details
and Specifications.

b. The City of Nashua will connect the new loop in the control panel if needed

c. Contractor will make connection in pull box. Contractor will solder, wire nut and
silicone seal connections for new loop at pull box. “Hockey puck” will not be used.

Cc, MEASUREMENT AND PAYMENT
Payment for this item shall be at the contract unit price specified for each. This payment shall
include all materials, labor, equipment, and all else needed to complete the work under this item

and make loops functional.

Contractor shall record the location of each loop. Quantities of loops shall be recorded per street.
Payment is contingent upon submittal of quantities in a per street format.

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Technical Specifications FY2019 Paving Program

ITEM 618.6 - UNIFORMED OFFICERS
A. SCOPE

This work shall consist of furnishing uniformed officers, with or without vehicles, as required to
direct traffic through or around the Work as ordered by the Engineer.

B. MATERIALS AND CONSTRUCTION

The Contractor shall supply qualified uniformed officers as per the latest approved NHDOT
Standard Specifications for Road Construction. Uniformed officers shall only be used when the
Engineer has previously approved it. Daily coverage needs to be approved by the Engineer.

C. MEASUREMENT AND PAYMENT

Uniformed officers will be measured by the actual number of hours authorized, as determined by
the Engineer. This item has a budgeted allowance as shown on the Bid Form. Payments to
Contractor will be made based on approved hours and resulting dollar amounts on Police
Department invoices and only after contractor’s proof of payment to Police Department.

Contractor shall record the number of hours for each officer used. Hours shall be recorded on a
per street basis. Payment is contingent upon submittal of quantities in a per street format.

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Technical Specifications FY2019 Paving Program

ITEM 618.7 - FLAGGERS
A. SCOPE

This work shall consist of furnishing qualified flaggers, as required to direct traffic through or
around the Work as ordered by the Engineer.

B. MATERIALS AND CONSTRUCTION

The Contractor shall supply qualified flaggers as per the latest approved NHDOT Standard
Specifications for Road and Bridge Construction. Daily coverage needs to be approved by the
Engineer.

OF MEASUREMENT AND PAYMENT

Flaggers will be measured by the actual number of hours authorized, as determined by the
Engineer. This item has a budgeted allowance as shown on the Bid Form. In no case shall the
gross hourly rate exceed $30/hour for straight time work, and $45/hour for overtime work.
Payments to Contractor will be made based on approved hours and resulting dollar amounts.

Contractor shall record the number of hours for each flagger used. Hours shall be recorded on a
per street basis. Payment is contingent upon submittal of quantities in a per street format.

Payment will not be made for flaggers who are not equipped with appropriate equipment or who
do not follow standard practice in performing their duties.

Technical Specifications FY2019 Paving Program

ITEM 619.1 - MAINTENANCE OF TRAFFIC
A. SCOPE

This work shall consist of providing and maintaining safe and passable traffic accommodations
for public traffic and furnishing, erecting and maintaining necessary traffic signs, barricades,
lights, signals, delineators, concrete barriers, signs, and other traffic control warning devices
through the work zone. The contractor is responsible for preparing a work area that is free of
parked vehicles or other obstructing objects. This includes, but is not limited to, erecting “no-
parking” signs provided by the City of Nashua 3 days prior to paving and returning same signs as
directed by the Engineer.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all labor, materials, equipment and transportation necessary for the
required maintenance of traffic needs based on the Contractors daily operations in accordance
with the latest approved NHDOT Standard Specifications for Road and Bridge Construction, and
the latest approved MUTCD. At a minimum, the Contractor’s crew shall, at all times, carry Two
(2) of the following signs to be erected as the need may arise:

e ROAD WORK AHEAD (MUTCD W20-1)
e ONE LANE ROAD AHEAD (MUTCD W20-4)
e DIRECTIONAL ARROW SIGN (MUTCD W1-6)
e FLAGGER SIGN (MUTCD W20-7)
Contractor shall provide 2 variable message signs for use on major roads.

Contractor shall be responsible for getting approved street opening permits, submitting traffic
control plans for all streets, obtaining lane closure or detour approval permits, and obtaining
emergency work permits.

The Contractor must notify, by email, the Engineer, and the City Solid Waste Department
Contact of specific types and locations of work. Notifications shall be provided the day before
work commences, during regular business hours (8am-5pm).

Engineer:
Mandeep Gill, M.S., P.E.

GillM@nashuanh. gov

Solid Waste Department Contact:
Kevin Naro
NaroK@NashuaNH.gov