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CERTIFICATE OF SUBSTANTIAL COMPLETION

PROJECT: 2021 Paving Program — Arterial and Collector Roadways

OWNER’S CONTRACT NO:

IFB0660-012821

DATE OF ISSUANCE:

OWNER:

OWNER’ s Purchase Order NO.:

CONTRACTOR:

City of Nashua, NH

Sunshine Paving

ENGINEER:

DPW Engineering

The Work to which this Certificate applies has been inspected by authorized representative of OWNER,
CONTRACTOR, and ENGINEER, and that Work is hereby declared to be substantially complete in
accordance with the Contract Documents on

(DATE OF SUBSTANTIAL COMPLETION)

A Tentative list of items to be completed or corrected is attached hereto. This list may not be all-
inclusive, and the failure to include an item in it does not alter the responsibility of CONTRACTOR to
complete all the Work in accordance with the Contract Documents. The items in the tentative list shall

be completed or corrected by CONTRACTOR within

Substantial Completion.

days of the above date of

This certificate does not constitute an acceptance of Work not in accordance with the Contract
Documents nor is it a release of CONTRACTOR’ s obligation to complete the Work in accordance with

the Contract Documents.

EXECUTED BY ENGINEER: ACCEPTS THIS CERTIFICATE OF SUBSTANTIAL
COMPLETION:
By: By:
(Authorized signature) Owner Representative
Title: Title:
Date: Date:

ACCEPTS THIS CERTIFICATE OF SUBSTANTIAL
COMPLETION:

By:

Contractor (Authorized Signature)

Title:

Date:

IFBO660-012821
2021 Paving Program
Arterial and Collector Roadways

CERTIFICATE OF SUBSTANTIAL COMPLETION

Page 1of1

City of Nashua, NH May 4, 2022
3-Year Optional Pavement Management Gupport Services Proposal Page 3
Regards,

STANTEC CONSULTING SERVICESINC.
° Digitally signed b
Scarpati, — <aisst william

Scarpati, William

Wi ia m Date: 2022.05.04

16:10:41 -04'00' Fx /, : Zs a Whe. Y
William P. Scarpati Frederick A. Moseley, PE
Senior Project Manager Principal
Phone: (781) 221-1165 Phone: (718) 221-1131

willaam.scarpati@stantec.com frederick.moseley@stantec.com

CERTIFICATE OF FINAL COMPLETION

PROJECT: 2021 Paving Program — Arterial and Collector Roadways
OWNER’S CONTRACT NO: IFB0660-012821

DATE OF ISSUANCE:

OWNER: City of Nashua, NH

OWNER’ s Purchase Order NO.:

CONTRACTOR: Sunshine Paving

ENGINEER: DPW Engineering

The Work to which this Certificate applies has been inspected by authorized representative of OWNER,
CONTRACTOR, and ENGINEER, and that Work is hereby declared to be finally complete in
accordance with the Contract Documents on

(DATE OF FINAL COMPLETION)

This certificate does not constitute an acceptance of Work not in accordance with the Contract
Documents nor is it a release of CONTRACTOR’ s obligation to complete the Work in accordance with
the Contract Documents. The Warranty for all Work completed expires one year from the date of this
Final Completion.

EXECUTED BY ENGINEER: ACCEPTS THIS CERTIFICATE OF FINAL ACCEPTS THIS CERTIFICATE OF FINAL
COMPLETION: COMPLETION:
By: By: By:
(Authorized signature) (Owner Representative) Contractor (Authorized Signature)
Title: Title: Title:
Date: Date: Date:

IFBO660-012821
2021 Paving Program CERTIFICATE OF FINAL COMPLETION
Arterial and Collector Roadways Page 1of1

CONTRACTOR'S FINAL RELEASE AND WAIVER OF LIEN

Project: IFB0660-012821 2021 Paving Program - Arterial and Collector | Roadways

Owner Contractor
Owner:_City of Nashua, New Hampshire Name:__ Sunshine Paving, Inc
Address:_229 Main Street Address: 29 Constitution Drive
Nashua, | New Hampshire 03060 Hudson, New Hampshire 03060
City State Zip City State Zip
Contract Date:

TO ALL WHOM IT MAY CONCERN:

For good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the
undersigned Contractor hereby waives, discharges, and releases any and all liens, claims, and rights to
liens against the above-mentioned project, and any and all other property owned by or the title to which
is in the name of the above-referenced Owner and against any and all funds of the Owner appropriated
and available for the construction of said project, and any and all warrants drawn upon or issued against
any such funds or monies, which the undersigned Contractor may have or may hereafter acquire or
process as a result of the furnishing of labor, materials, and/or equipment, and the performance of Work
by the Contractor on or in connection with said project, whether under and pursuant to the above-
mentioned contract between the Contractor and the Owner pertaining to said project or otherwise, and
which said liens, claims or rights of lien may arise and exist.

The undersigned further hereby acknowledges that the sum of

DOLLARS
($ )

has been paid to date and that

DOLLARS
($ )

constitutes the entire unpaid retainage balance due the undersigned in connection with said project
whether under said contract or otherwise and that the payment of said sum to the Contractor will
constitute payment in full and will fully satisfy any and all liens, claims, and demands which the
Contractor may have or assert against the Owner in connection with said contract or project.

Dated this day of 20

Contractor
Witness to Signature

By Title

DIVISION 9

TECHNICAL SPECIFICATIONS

ITEM 203.112 - ROAD EXCAVATION AND REGRADE
A. SCOPE

This work includes repairing the subgrade including regrading and replacing removed subgrade
material with binder pavement at specific locations as directed by the Engineer.

This item will only be used at locations identified by the Engineer. In other areas where
subgrade is exposed during milling, any grading and compaction of the disturbed subgrade will
be incidental to subsequent paving.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all materials, labor, equipment, and transportation necessary for
work in accordance with the latest approved City of Nashua Standard Specifications for Road
Construction, or the latest approved NHDOT Standard Specifications for Road and Bridge
Construction. The most stringent specification shall apply. Transportation and disposal of the
removed material shall be the responsibility of the Contractor.

This work includes removing 2” of exposed subbase, regrading as directed, and replacing with 2”
of %4” stone asphalt as per approved mix design. Prior to placing asphalt, subbase material shall
be compacted to required density. Locations of work shall be marked by the Engineer.

C. MEASUREMENT AND PAYMENT
This item will be measured per Square Yard of asphalt placed and compacted in the field.
Payment for this item shall be at the contract unit price per square yard and shall also include all

materials, labor, equipment, and all else needed to complete the work under this item. No
payment will be made for materials delivered but not placed.

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ITEM 203.113 - DRIVEWAY EXCAVATION AND REGRADE
A. SCOPE

This work includes removing asphalt and concrete driveway materials to subbase, regrading, and
placing new pavement in kind. This item will only be used on roadways which are being
reclaimed or as directed by the Engineer.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all materials, labor, equipment, and transportation necessary for
work in accordance with the latest approved City of Nashua Standard Specifications for Road
Construction, or the latest approved NHDOT Standard Specifications for Road and Bridge
Construction. The most stringent specification shall apply. Transportation and disposal of the
removed material shall be the responsibility of the Contractor.

This work includes saw cutting and removing asphalt or concrete driveway materials down to
subbase, regrading as directed, and compacting subbase to 95% density. Placement of asphalt
will be done under Item 403.12. When the Engineer directs that concrete shall be used for
driveway pavement, payment shall be made under item 403.12 at the rate of two hundred percent
(200%) of the contract unit price. Limits of work shall be agreed upon with the Engineer.

Minimum thickness of reconstructed driveway asphalt pavement shall be 2.5 inches and shall
match existing thickness for concrete driveways.

Contractor shall use a 1 ton steel drum roller or heavier to achieve required compaction.

C. MEASUREMENT AND PAYMENT

This item will be paid per Square Yard of asphalt placed and compacted in the field. Payment for
this item shall be at the contract unit price per Square Yard and shall also include all materials,

labor, equipment, and all else needed to complete the work under this item. No payment will be
made for materials delivered but not placed.

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ITEM 304.32 -CRUSHED GRAVEL FOR SHOULDER LEVELING
A. SCOPE

This work shall consist of furnishing and placing crushed aggregate to raise the edge of the
roadway shoulders as shown on plans or directed by the Engineer.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all materials, labor, equipment, and transportation necessary for
work in accordance with the latest approved City of Nashua Standard Specifications for Road
Construction, or the latest approved NHDOT Standard Specifications for Road and Bridge
Construction. The most stringent specification shall apply. Crushed gravel shall be compacted
with a powered hand compactor. Crushed gravel shall meet NHDOT specifications for Item
304.32.

C. MEASUREMENT AND PAYMENT

This item will be measured per ton placed in the field. Payment for crushed gravel will be by the
ton actually placed. Payment for this item shall be at the contract unit price per ton and shall also
include all materials, labor, equipment, and all else needed to complete the work under this item.
No payment will be made for materials delivered but not placed.

Contractor shall record the tons of material placed and compacted for each street. Recorded
totals shall be compared with Engineer’s records and observations on a daily basis when work on
this item is performed. Payment is contingent upon submittal of quantities in a per street format.

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ITEM 306.114 - RECLAIMED STABILIZED BASE PROCESSED IN
PLACE, 14” DEEP

A. SCOPE

This work shall consist of pulverizing the existing pavement together with subbase material to a
depth of 14 inches or as directed by the Engineer, removal and disposal of excess reclaim
material, fine grading to assure that finished surface matches existing gutter or as directed by the
Engineer, and compaction of materials to required densities. The surplus material removed from
this operation shall remain the property of the City of Nashua and shall be transported and stock
piled by the contractor at the Four Hills Landfill at 830 West Hollis St in Nashua.

B. MATERIALS AND CONSTRUCTION

The Contractor shall furnish all materials, labor and equipment necessary for reclaimed
stabilized base, processed in place, in accordance with relevant provisions of section 306 of the
NHDOT Standard Specifications for Road and Bridge Construction, latest edition.

Surface preparation shall be subsidiary and shall include (but is not limited to) weed removal,
occasional pruning of trees, and removal of any vegetation impeding the work.

At the start of compaction on each street, the maximum density for the street shall be determined
by compacting a short (100 foot minimum length) test strip at a suitable moisture content until no
further increase in density can be obtained. The densities shall be obtained by use of nuclear
density testing equipment. A new test strip may be required by the Engineer where there is a
significant change in the character of material.

Compaction shall be accomplished using a vibratory sheep’s foot roller or pad foot roller with at
least 50,000 Ibs. of dynamic force. Final rolling shall be accomplished by a smooth steel wheel
vibratory roller with at least 27,000 Ibs. of dynamic force. Contractor shall also provide
compaction equipment sufficient to achieve required densities in areas not accessible by larger
equipment.

The reclaimed stabilized base shall be compacted to at least 95% of the average density of the
test strip.

Fine grading to proposed grades shall be subsidiary. Removal, transportation, and disposal of
surplus material are subsidiary.

After the site has been fine graded and compacted, the Contractor will allow a minimum of 1
working day for the city to review compacted base. Acceptance of the compacted base shall not
change the Contractor’s sole responsibility to assure the finished pavement has no puddles and
that the gutter profile generally matches existing conditions.

All catch basins must be protected from reclaimed materials by use of silt sacks. All materials,

labor, equipment, and transportation necessary to install, maintain, and remove the silt sacks
shall be subsidiary, including disposal of material.

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C. MEASUREMENT AND PAYMENT

This item shall be measured by the Square Yard of Reclaimed Stabilized Base Processed in
Place, 14” Deep. Payment for this item shall be at the contract unit price per Square Yard. This
payment shall also include all materials, labor, equipment, and all else needed to complete the
work under this item.

Contractor shall record the square yard of reclaimed area for each street. Payment is contingent
upon submittal of quantities in a per street format.

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