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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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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.

C. MEASUREMENT AND PAYMENT

Flaggers will be measured by the actual number of hours authorized, as determined by the
Engineer. Payment shall be made at the contract price per hour.

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

substantiated with invoices from flagging subcontractor.

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.

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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 a minimum of 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:
Mark Saunders

SaundersM@NashuaNH. gov

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

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C. MEASUREMENT AND PAYMENT

Maintenance of Traffic will be measured as a unit. Payment for maintenance of traffic shall be at
the contract lump sum, which lump sum includes full compensation for material, equipment and
labor to complete this portion of the Bid Schedule. The lump sum can only be amended by
written, approved change order. Progress payments towards the lump sum will be made
periodically based on the percent of the contract and the balance will be paid at final payment
upon completion of all project requirements. Should the contract be terminated prior to
completion, or the contract work not completed, total payment for this item shall be proportional
to the percentage of the contract completed.

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ITEM 632 —- RETROREFLECTIVE PAVEMENT MARKINGS
A. SCOPE

This work shall consist of furnishing and placing white or yellow retro reflective paint pavement
markings and retro reflective thermoplastic pavement markings at locations shown on the plans
or as ordered by the Engineer.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all labor, materials, equipment and transportation necessary for the
required placement of retro reflective paint and thermoplastic pavement markings in accordance
with the latest approved NHDOT Standard Specifications for Road and Bridge Construction, and
the latest approved MUTCD. A layout drawing shall be approved by the Engineer prior to any
work being done to the street.

Application temperature requirements shall be strictly enforced. Material placed outside
temperature requirements will not be accepted.

Striping shall match existing striping and be replaced in kind or as directed by the Engineer.
All stop bars, crosswalks and symbols shall be retro reflective thermoplastic and all long lines
shall be retro reflective paint.

C. MEASUREMENT AND PAYMENT

632.0104 Retroreflective Paint Pavement Marking,
Single Solid Line, 4in. Linear Foot

632.0112 Retroreflective Paint Pavement Marking,
Single Solid Line, 12in. Linear Foot

632.3112 Retroreflective Thermoplastic Pavement Marking,
Single Solid Line, 12in. Linear Foot

632.3118 Retroreflective Thermoplastic Pavement Marking, 18in. —_ Linear Foot

632.32 Retroreflective Thermoplastic Symbol Square Foot

Payment shall be per the unit listed above. Symbols will be paid for at the square footage listed
below:

Turn Arrow = 17 SF

Straight and Turn Arrow = 28.8 SF

Left/Through/Right = 40.25 SF

Straight Arrow = 12.5 SF

Only = 22.3 SF
Ahead = 31.3 SF
Stop = 22.2 SF

School = 34.7 SF

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X-ing = 20.8 SF
Contractor shall record the liner feet and square feet of retroreflective pavement markings

placed. Quantities shall be recorded on a per street basis. Payment is contingent upon submittal
of quantities in a per street format.

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ITEM 632.80 - TEMPORARY PAVEMENT MARKERS
A. SCOPE

This work shall consist of furnishing, placing, and removing temporary pavement markers
(TPMs) at locations shown on the plans or as ordered by the Engineer in accordance with the
latest approved NHDOT Standard Specifications for Road and Bridge Construction, and the
latest approved MUTCD.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all labor, materials, equipment and transportation necessary for the
required placement and removal of TPMs in accordance with the latest approved NHDOT
Standard Specifications for Road and Bridge Construction, and the latest approved MUTCD.

Channelizing Lines: TPMs used in channelizing line applications shall have white one-way retro
reflectors facing traffic.

Lane Lines: TPMs used in lane line applications shall have white one-way or white/red two-way
retro reflectors as specified, with white facing traffic.

Edge Lines: TPMs used in edge line applications shall have one-way reflectors facing traffic, and
which match the existing edge line color.

Center Lines: TPMs used in center line applications shall have yellow two-way reflectors.

C. MEASUREMENT AND PAYMENT

The quantity of Temporary Pavement Markers to be paid for will be the actual number of
temporary pavement markers which have been satisfactorily installed and accepted by the
Engineer, and will be paid for at the contract unit price specified for each. Replacement of
temporary pavement markers that are damaged or removed shall be incidental to original
installation.

Contractor shall record the number of temporary markers installed. Quantities shall be recorded
on a per street basis. Payment is contingent upon submittal of quantities in a per street format.

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ITEM 641 —- LOAM AND SEED

A. SCOPE

This work shall consist of furnishing and placing loam to raise the edge of the roadway shoulders
or to reestablish disturbed lawns during activities as shown on plans or as directed by the
Engineer.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all labor, materials, equipment and transportation necessary for the
required placement of loam and seed in accordance with latest approved NHDOT Standard

Specifications for Road and Bridge Construction.

Seed shall be appropriate for lawn application. Seed type and mixture shall be submitted in
advance.

Sunny mix shall be 70% Kentucky Blue; 30% Perennial Rye.

Shade mix shall be 70% Fine Fescue; 30% Perennial Rye.
Loam shall consist of loose friable topsoil with no admixtures of refuse or material toxic to plant
growth. Loam shall be placed matching height of new berm or reset curb and shall blend
smoothly into lawn area without creating puddles. Extra material will be placed to account for
settlement. Seed will be immediately placed. Contractor is responsible to repair low spots and to

establish an acceptable stand of grass throughout loamed areas.

Where appropriate, erosion control matting shall be used to prevent erosion until a full stand of
grass is established.

Seed application rate shall be 10lbs per 1000SF.
C. MEASUREMENT AND PAYMENT

Quantity of Loam and Seed will be paid for by the Cubic Yard of material placed. No payment
will be made for materials delivered but not placed.

Contractor shall record the cubic yard of material placed for each street. Payment is contingent
upon submittal of quantities in a per street format.

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ITEM 900 — LIQUID ASPHALT ADJUSTMENT

This item is used when the “NE Average” monthly price for asphalt cement as furnished by the
NHDOT Bureau of Materials and Research differs from the base price contained in the proposal.
The monthly price posted by NHDOT is available in the following web page:

http://www.nh. gov/dot/org/projectdevelopment/construction/documents/MonthlyFuelPricesImpe
rial. pdf

The price adjustment will be based on the percent of asphalt cement in the approved mix
formula(s) in the materials incorporated in the work.

The base price of asphalt cement for this Contract is:

$ 495.00 per ton. (as of January 1, 2021)

The monthly price of asphalt cement will be furnished by the NHDOT Bureau of Materials and
Research on the first business day following the 14th calendar day of each month.

The contract prices of Hot Bituminous Pavement will be paid under the item in the contract. The
price adjustment, as provided herein, upwards or downwards, will be made at the end of each

month in which the work was accomplished as follows:

[Monthly price less the base price] X [approved job mix formula percent of asphalt cement] X
[tons of pavement used].

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ITEM 1010.9 - ASPHALT CORES
A. SCOPE

This work shall include cutting 6” diameter cores, filling holes with hot mix asphalt, and
compacting in accordance with provisions in Item 403.11.

Cores will be taken in support of the City Quality Assurance program as directed by the
Engineer.

The Engineer may also direct the Contractor to take cores in certain roadway prior to milling to
verify pavement thickness.

B. MEASUREMENT AND PAYMENT
This item will be measured and paid per each core taken and delivered. Payment shall include

all costs associated with cutting, patching, compacting and delivery of cores ordered by the
Engineer.

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