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The accepted quantity of leaching catch basins constructed shall be paid for
at the contract unit price under ITEM 7C, and shall constitute full
compensation for constructing new leaching catch basin, furnishing and
installing specified frame and grate, complete in place as indicated on the
drawings and/or as specified, including furnishing all materials, labor, tools,
and equipment necessary to complete the work, including but not limited to
excavation, dewatering, backfill, removal of unsuitable materials at the City
landfill, furnishing and placing stone and geotextile fabric, and all work
incidental thereto and not specifically included for payment under other
items.

P. FLOWABLE FILL FOR PIPE ABANDONED IN PLACE
Measurement:
The quantity of flowable fill for pipe abandoned in place under ITEM 8 will be
measured by the CUBIC YARD based on delivery slips provided on the job
site (minus volume not used) as approved by the Engineer.

Payment:
The accepted quantity of flowable fill for pipe abandoned in place shall be

paid for at the contract unit price under ITEM 8, and shall constitute full
compensation for furnishing and installing flowable fill in the pipe to be
abandoned, complete in place as indicated on the drawings and/or as
specified, including excavation for access to the pipeline, pumping
equipment, backfill, and disposal of unsuitable materials at the City landfill
and all labor, tools, and equipment necessary to complete the work, and not
specifically included for payment under other items.

Q. PRECAST HEADWALL
Measurement:
The quantity of precast headwalls shall be paid for by the EACH under ITEM
9 based on the number of headwalls constructed as approved by the Engineer.

Payment:
The accepted quantity of precast headwalls shall be paid for at the contract

unit price under ITEM 9, and shall constitute full compensation for
furnishing and placing precast headwalls, complete in place as detailed on
the Drawings and as specified, including excavation, backfill, and disposal
of unsuitable materials at the City landfill and all labor, tools, and
equipment necessary to complete the work, and not specifically included for
payment under other items.

R. RIPRAP, CLASS I INCLUDING STONE & GEOXTILE FABRIC)
Measurement:
The quantity of Riprap, Class I shall be paid for by the CUBIC YARD under
ITEM 10 based on the actual volume of riprap placed as approved by the
Engineer.

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Payment:
The accepted quantity of Riprap, Class I shall be paid for at the contract unit

price under ITEM 10, and shall constitute full compensation for furnishing
and placing riprap including geotextile fabric, complete in place as detailed
on the Drawings and as specified, including excavation, backfill, and
disposal of unsuitable materials at the City landfill and all labor, tools, and
equipment necessary to complete the work, and not specifically included for
payment under other items.

2.02 ROADWAY RESTORATION

A. CRUSHED GRAVEL:
Measurement:
The quantity to be measured under ITEM 11A shall be measured per CUBIC
YARD, in place. Quantities shall be measured for payment as directed and
approved by the Engineer. Over-excavated trenches will not be allowed.

Payment:
The approved quantity of crushed gravel shall be paid for at the contract unit

price for ITEM 11A and shall be full compensation for the furnishing, placing,
compacting and fine grading crushed gravel including all labor, tools and any
other equipment necessary to complete the work as specified in these
Specifications and as directed by the Engineer.

B. TEMPORARY BITUMINOUS PAVEMENT PATCH INCLUDING = 18”
CRUSHED GRAVEL BASE
Measurement:
The quantity of temporary pavement patch to be measured under ITEM 11B
shall be measured by the SQUARE YARD, complete-in-place, as specified in
these Specifications and as directed by the Engineer.

Payment:
The approved quantity of temporary pavement patch shall be paid for at the

contract unit price for ITEM 11B and shall be full compensation furnishing,
placing and compacting 18” layer of crushed gravel, furnishing, placing,
compacting hot mix asphalt pavement (2” thickness) as detailed on the plans
by methods approved by the Engineer, including all labor, tools and any other
equipment necessary to complete the work as specified in these Specifications
and as directed by the Engineer.

C. | HOT BITUMINOUS PAVEMENT (PERMANENT BINDER AND WEARING
COURSES)

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Measurement:

The quantity to be measured under ITEM 11C for permanent pavement patch
(Binder and Wearing Courses) shall be measured by the TON based on weight
slips provided on the job site and approved by the Engineer.

Payment:
The approved quantity of hot bituminous pavement for permanent pavement

patch shall be paid for at the contract unit price for ITEM 11C and shall be full
compensation for the furnishing, placing, compacting hot mix asphalt
pavement by methods approved by the Engineer, including all labor, tools and
any other equipment necessary to complete the work as specified in these
Specifications and as directed by the Engineer.

Notes:

1. Permanent pavement course thicknesses shall be as specified
on the plans, or as ordered by the Engineer.

2. Tack coats shall be applied between all pavement courses and
shall be incidental to this item of work and not measured
separately for payment.

3. Replacement of pavement markings are paid for under
ITEMS 17 (A thru D).

D. SAWED BITUMINOUS PAVEMENT
Measurement:
The quantity to be measured under ITEM 11D, Sawed Bituminous Pavement,
shall be measured by the LINEAR FOOT in accordance with the Contract
Drawings, directions from the Engineer, and as specified herein.

Payment:

The approved quantity of sawed bituminous pavement shall be paid for at the
contract unit price for ITEM 11D and shall be full compensation for saw
cutting bituminous pavement of any depth, including all labor, tools and any
other equipment necessary to complete the work as specified in these
Specifications and as directed by the Engineer.

E. UNCLASSIFIED EXCAVATION

Measurement:

The quantity to be measured under ITEM 11E shall be measured per CUBIC
YARD in place. Measurement for payment of this item shall only apply to the
unclassified excavation for the placement of temporary and permanent
pavement, sidewalk areas and associated crushed gravel to the depths specified
in the contract drawings. Quantities shall be measured for payment as directed
and approved by the Engineer. Over-excavated trenches will not be allowed.

Payment:
The approved quantity of unclassified excavation shall be paid for at the
contract unit price for ITEM 11E and shall be full compensation for the

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AMENDMENT No. 1
TO
CONTRACT FOR PROFESSIONAL SERVICES

BETWEEN
CITY OF NASHUA
AND
HAYNER/ SWANSON, INC.
This Amendment No.1 made the day of 2022, by and between The City of

Nashua, New Hampshire (hereinafter called OWNER), and Hayner/Swanson, Inc (hereinafter called
ENGINEER).

WHEREAS, an AGREEMENT was entered into on December 2, 2021 between the OWNER and ENGINEER,
which AGREEMENT is entitled “2022 Sewer Rehabilitation Program Engineering Services”.

hereinafter referred to as AGREEMENT.

The AGREEMENT shall be further amended to include this Amendment, a copy of which is attached as

EXHIBIT A.

CHANGE IN CONTRACT PRICE:
Original Contract Price

$229,500

CHANGE IN CONTRACT TIMES:
Original Contract Times

Contract completion date: December 31, 2022

Net changes from previous Amendments

$0

Net change from previous Amendments

0 Days

Contract Price prior to this Amendment

$229,500

Contract Times prior to this Amendment

Contract completion date: December 31, 2022

Net Increase (deerease) of this Amendment

$243,585

Net Increase decrease} of this Amendment

365 Days

Contract Price with all approved Change Orders

$473,085

Contract Times with all approved Change Orders

Contract completion date: December 31, 2023

Amendment 1
Sewer Rehabilitation
Engineering Services

Page 1 of 5

excavation and disposal of existing pavement and existing unsuitable materials
at the City landfill in order to establish the appropriate subgrade for the
temporary and permanent pavement and associated crushed gravel base
courses, including all labor, tools and equipment necessary to complete the
work as specified in these Specifications and as directed by the Engineer.

F. 2-INCH BITUMINOUS SIDEWALK INCLUDING CRUSHED GRAVEL
BASE
Measurement:
The quantity to be measured under ITEM 12A, 2-Inch Bituminous Sidewalk,
shall be measured by the SQUARE YARD in accordance with the Contract
Drawings, directions from the Engineer, and as specified herein.

Payment:
The approved quantity of 2-Inch Bituminous Sidewalk shall be paid for at the

contract unit price for ITEM 12A and shall be full compensation for removal
and replacement of the bituminous sidewalk including crushed gravel base,
repair of grass and landscape areas disturbed by the sidewalk construction, and
all labor, tools and any other equipment necessary to complete the work as
specified in these Specifications and as directed by the Engineer.

G. 4-INCH CONCRETE SIDEWALK INCLUDING CRUSHED GRAVEL BASE
Measurement:
The quantity to be measured under ITEM 12B, 4-Inch Reinforced Concrete
Sidewalk, shall be measured by the SQUARE YARD in accordance with the
Contract Drawings, directions from the Engineer, and as specified herein.

Payment:
The approved quantity of 4-Inch Reinforced Concrete Sidewalk shall be paid

for at the contract unit price for ITEM 12B and shall be full compensation for
removal and replacement of the concrete sidewalk including crushed gravel
base and all labor, tools and any other equipment necessary to complete the
work as specified in these Specifications and as directed by the Engineer.

H. RESET GRANITE CURB
Measurement:
The quantity to be measured under ITEM 13A, Reset Granite Curb, shall be
measured by the LINEAR FOOT in accordance with the Contract Drawings,
directions from the Engineer, and as specified herein.

Payment:
The approved quantity of Reset Granite Curb shall be paid for at the contract

unit price for ITEM 13A and shall be full compensation for removal and
resetting of existing granite curb including crushed gravel base and all labor,
tools and any other equipment necessary to complete the work as specified in
these Specifications and as directed by the Engineer.

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NEW VERTICAL GRANITE CURB (STRAIGHT)

Measurement:

The quantity to be measured under ITEM 13B, New Vertical Granite Curb
(STRAIGHT), shall be measured by the LINEAR FOOT in accordance with
the Contract Drawings, directions from the Engineer, and as specified herein.

Payment:
The approved quantity of New Vertical Granite Curb (STRAIGHT) shall be

paid for at the contract unit price for ITEM 13B and shall be full compensation
for furnishing and installing new vertical granite curb including crushed gravel
base and all labor, tools and any other equipment necessary to complete the
work as specified in these Specifications and as directed by the Engineer.

NEW GRANITE CURB (SLOPED)

Measurement:

The quantity to be measured under ITEM 13C, New Vertical Granite Curb
(SLOPED), shall be measured by the LINEAR FOOT in accordance with the
Contract Drawings, directions from the Engineer, and as specified herein.

Payment:
The approved quantity of New Vertical Granite Curb (SLOPED) shall be paid

for at the contract unit price for ITEM 13C and shall be full compensation for
furnishing and installing new vertical granite curb including crushed gravel
base and all labor, tools and any other equipment necessary to complete the
work as specified in these Specifications and as directed by the Engineer.

K. LOAM AND SEED (6” Depth)

Measurement:

The quantity to be measured under ITEM 14, Loam and Seed, shall be
measured by the SQUARE YARD of disturbed landscape area within the pay
limits noted on the Contract Drawings, or as approved by the Engineer, and as
specified herein

Payment:
The accepted quantity of loam and seed shall be paid for at the contract unit

price under ITEM 14, and shall be full compensation for the installation of
preparation of the subgrade, the placement of 6-inches of approved loam, and
for seeding, mulching and fertilizing the disturbed area, including all labor,
tools and any other equipment necessary to complete the work as specified in
these Specifications and as directed by the Engineer.

L. REMOVE TREES
Measurement:
The quantity to be measured under the various subdivisions of ITEM 15 (A
thru C) for removal trees will be measured by the EACH as approved by the
Engineer.

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Payment:
The accepted quantity of trees removed shall be paid for at the contract unit

price under the appropriate subdivisions of ITEM 15 (A thru C) and shall
constitute full compensation for removal of the tree, branches, stump and any
undergrowth within the canopy of the tree, and disposal of all wooded material
off-site in a legal manner, all as specified in these Specifications and as
directed by the Engineer.

Note: The Contractor shall file the /nfent to Cut form, and pay the timber tax
under this Item of work.

M. SILT SACK, SILT FENCE
Measurement:
The quantity of silt sacks to be measured under ITEM 16A will be the actual
number of silt sacks furnished and installed measured by the EACH, complete-
in-place, as specified in these Specifications and as directed by the Engineer.

The quantity of silt fence to be measured under ITEM 16B will be by the
LINEAR FOOT furnished and installed, complete-in-place, as specified in
these Specifications and as directed by the Engineer.

Payment:
The accepted quantity of silt sacks and silt fence shall be paid for at the

contract unit price under ITEM 16A and 16B, and shall be full compensation
for the installation of silt sacks and silt fence including maintenance during the
construction period, and all labor, tools and any other equipment necessary to
complete the work as specified in these Specifications and as directed by the
Engineer.

N. PAVEMENT MARKINGS
Measurement:
The quantity to be measured under the appropriate subdivision of ITEM 17 (A
thru D), shall be measured by the LINEAR FOOT for painted lines, or by the
SQUARE FOOT for painted symbols in accordance with the Contract
Drawings, directions from the Engineer, and as specified herein.

Payment:
The approved quantity of painted lines and painted symbols shall be paid for at

the contract unit price under the appropriate subdivision of ITEM 17 (A thru
D) and shall be full compensation for providing pavement markings including
all labor, tools and any other equipment necessary to complete the work as
specified in these Specifications and as directed by the Engineer.

2.03 PROJECT START-UP AND PROJECT CLOSE OUT:

A. MOBILIZATION
Measurement:

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Mobilization shall be measured as a LUMP SUM as specified herein. The total
cost for this item shall not exceed 5 percent of the total of all bid items
excluding this item.

Payment:
The contract price for ITEM 18 shall constitute full compensation to the

Contractor for the general mobilization and demobilization necessary to make
the contract operational, exclusive of the cost of materials. Payments toward
the lump sum will be made at each payment requisition based on the percent of
contract amount completed. Final payment of this item will be paid based on
the percent of the contract amount completed. 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
amount completed. No additional payment will be made if the contract value is
increased.

B. WARRANTY INSPECTION:
All warranty inspections and related work shall not be separately measured for
payment but shall be considered incidental to the project.

2.04 MAINTENANCE AND PROTECTION OF TRAFFIC:

A. UNIFORMED POLICE OFFICERS

Measurement:

Uniformed police officers will be measured and paid by the actual number of
hours authorized, as determined by the Engineer. The Contractor shall supply
qualified uniformed officers as stated in Section 618 of the NHDOT Standard
Specifications for Road and Bridge Construction, (Approved and Adopted in
2016). Uniformed officers shall only be used when there are no available
flaggers and the Engineer has previously approved it. Daily coverage needs to
be approved by the Engineer. The Contractor's schedule for utilizing uniformed
officers shall be agreed upon cooperatively with the Engineer.

Payment:
The Contractor shall be reimbursed without markup for approved invoices

from the Nashua Police Department which shall be paid under budget
ALLOWANCE under ITEM 19. Payment shall constitute full compensation to
the Contractor for providing uniformed Nashua police officers with or without
vehicles, including all labor, high visibility safety gear, tools and any other
equipment necessary to complete the work as specified herein. Payment shall
be made only after Contractor has provided proof of payment to Police
Department.

B. FLAGGERS

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Measurement:

The quantity of Flaggers will be measured by the HOUR based on the actual
number of hours authorized, as determined by the Engineer. The Contractor
shall supply qualified flaggers as stated in Section 618 of the NHDOT
Standard Specifications for Road and Bridge Construction, (Approved and
Adopted in 2016). Daily coverage needs to be approved by the Engineer. The
Contractor's schedule for flaggers shall be agreed upon cooperatively with the
Engineer.

Payment:
The approved quantity of flagger hours shall be paid at the contract price for

ITEM 20. Payment shall constitute full compensation to the Contractor for
providing qualified flaggers as required to direct traffic through or around the
Work as ordered by the Engineer, including all labor, high visibility safety
gear, tools and any other equipment necessary to complete the work as
specified herein. Payments to Contractor will be made based on approved
hours and resulting dollar amounts.

C. MAINTENANCE OF TRAFFIC
Measurement:
Maintenance of traffic shall be measured as a LUMP SUM as specified herein.

Payment:
The contract price for ITEM 21 shall constitute full compensation for

providing and maintaining safe and passable traffic accommodations for public
travel, preventing dust nuisance and furnishing, erecting and maintaining
necessary traffic signs, barricades, lights, signals, flashing beacons, delineators
and other traffic control warning devices and shall include means of guidance
of traffic through and around the work zones. Traffic warning signs and other
regulating devices shall be installed in accordance with the MUTCD and
details on the plans. Payments toward the lump sum will be made at each
payment requisition based on the percent of contract completed 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.

2.05 HAZARDOUS MATERIALS:

A. ALLOWANCE FOR UNANTICIPATED HAZARDOUS MATERIALS
Measurement & Payment
ITEM 22 is intended to be a contingency pay item to be used in the event that
unanticipated hazardous material is encountered during the work.
Compensation shall only be paid to the Contractor if unanticipated hazardous
material is encountered and expenditure of the allowance, or portion of the
allowance, is authorized by the Engineer.

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An allowance value has been established on the bid form for this item as a
means to include funds in the event that the Contractor is directed to perform
work associated with addressing unanticipated hazardous materials.

Costs for these pay items shall be negotiated between the Engineer and the
Contractor in accordance with provisions for changes in the work in the
General Conditions.

2.06 MISCELLANEOUS ITEMS:

A. ROCK STRUCTURE EXCAVATION AND DISPOSAL

Unless designated otherwise earthwork shall not be separately measured for
payment, but shall be considered incidental to construction of the project. Rock
Structure Excavation is not anticipated; however, if encountered, it shall be
measured and paid for as defined herein.

Measurement:

The quantity of Rock Structure Excavation shall be measure under ITEM 23 by
the CUBIC YARD based on the pay limits established in the NHDOT Standard
Specifications - Section 206.

Payment:
The accepted quantity of Rock Structure Excavation shall be paid for at the

contract unit price under ITEM 20 which shall constitute full compensation
for the removal, disposal of rock encountered in the trench, re-fill of the
trench with acceptable trench backfill material as defined in Section 02300,
all necessary permits, pre-blast survey, and other requirements of the
specifications including all labor, tools, and equipment necessary to
complete the work, and not specifically included for payment under other
items.

B. NIGHT WORK ORDERED BY CITY
Measurement:
Night work, if required and ordered by the City, shall be measured by the
HOUR for work performed by the Contractor’s entire crew between the hours
of 8PM and 6AM. Night hours worked by the Contractor which were not
ordered by the Engineer will not be measured for payment.

Payment:
The contract price for ITEM 24 shall constitute full compensation for the

premium cost of the entire crew including overtime wages, taxes, night
lighting, and any other labor and/or equipment necessary to complete the work
during designated night time hours as specified herein.

C. MESSAGE BOARD

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