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SECTION 411

3.4 Placing shall conform to 401.3.10 with the following modifications:

3.4.1 The existing pavement shall be thoroughly dry and free from all dust, dirt, and loose material. Sweeping with a power
broom supplemented by hand brooming may be required.

3.4.2 Existing pavement shall be treated with tack coat as prescribed in 410.3.4. When ordered, the existing pavement shall
be treated as prescribed in 410.3.3.

3.4.3 A leveling course of hot bituminous concrete may be ordered to prepare the pavement for the finish course.

3.4.4 Any material delivered to the paver having a temperature lower than 260° F shall not be used unless modified bya
qualified warm mix technology capable to being compacted to project requirements at the recommended delivery temperature.

3.4.5 Inthose areas where the edges of the pavement are adjacent to paved or bituminous treated shoulders, the asphalt paving
machine shall be equipped to produce a feathered edge, parallel to the direction of traffic, and a uniform longitudinal line shall be
maintained at the outer edge of the applied pavement.

3.4.6 All bridges included within the limits of the work shall be treated curb to curb.

3.4.7 | When AC Paver Shim is specified, in areas of extreme deformation of the existing roadway, some amount of dragging
is expected in placing this wearing course.

3.4.8 | When Spot Drag Shims are specified, the intent is to fill and level localized ruts and deformations in the pavement. An
8” paver shall be used. Spots to be shimmed will be marked out by the Engineer. The length and widths of the spots will vary. It
is expected that in most cases the pavement marking stripes will not be covered. Each spot shall be tacked before paving. Edges
of shimmed areas shall be feathered by the paver. Luting or squaring up the ends of each spot will not be required.

3.5 Compaction shall conform to 401.3.12 with the following modifications:

3.5.1 If necessary to prevent traffic pickup of the mixture, the surface of the work shall be given a light dusting of blotter
material just prior to rolling with a pneumatic-tired roller. The surface shall be maintained thereafter by occasional back sanding
and rolling as directed.

3.5.2 When more than 125 tons of mixture are being placed per hour, an additional steel-wheeled roller will be required.

3.5.3 Excess blotter material remaining on the pavement and on paved shoulders shall be removed prior to acceptance of the
project.

3.5.4 After rolling has been completed, the edges of the pavement shall be trimmed as directed to secure a uniform line.

3.6 The finished surface of the pavement shall be uniform in appearance, shall be free from irregularities in contour, and shall
present a smooth-riding surface.

Method of Measurement
4.1 Plant mix surface treatment will be measured as prescribed in 401.4,

4.2 Blotter material used on plant mix surface treatment will be subsidiary.

Basis of Payment

5.1 The accepted quantities of leveling course and plant mix surface treatment will be paid for at the Contract unit price per ton,
complete in place.

5.1.1 Tack coat material required under 3.4.2 will be subsidiary to the leveling course and plant mix surface treatment items.

Pay items and units:

411.1 Hot Bituminous Concrete Leveling Course Ton
411.15 Hot Bituminous Concrete Leveling Course, Aggregate 50 Percent Wear Ton
411.19 Hot Bituminous Concrete Leveling Course (Night) Ton
411.3 Plant Mix Surface Treatment (AC), Paver Shim Ton
411.43 Plant Mix Surface Treatment(Asphalt Cement), 3/8 in Ton
411.46 Plant Mix Surface Treatment(Asphalt Cement), 3/4 in Ton
| 411.51 Plant Mix Surface Treatment, Paver Spot Drag Shim | Ton
2016 NHDOT
GoTo=> LOC Division 100 Division 200 Division 300 Division 406 Standard

Division 500 Division 600 Division 700 Specifications

SECTION 410

3.6 Finished Appearance.

3.6.1 Any bituminous material splashed or sprayed onto exposed surfaces of curbs, sidewalks, or other masonry structures shall
be removed by sandblasting at the Contractor's expense.

Method of Measurement
4.1 Bituminous surface treatment will be measured by the ton, in accordance with 109.01, to the nearest 0.1 ton.

4.1.1 Blotter material furnished will be subsidiary.
4.2 Asphalt emulsion for tack coat will be measured by the gallon, in accordance with 109.01 , to the nearest gallon.

4.2.1 The measurement will be based on a calibrated meter mounted on the distribution vehicle or calibrated tank chart. The
meter shall be calibrated at least twice per year. Measurement will be at the delivered temperature (no adjustment).

Basis of Payment

5.1 The accepted quantities of bituminous surface treatment will be paid for at the Item Bid Price per ton for bituminous material,
complete in place.

5.2 The accepted quantities of asphalt emulsion for tack coat will be paid at the Item Bid price per gallon, complete in place.
5.2.1 Emulsified asphalt for tack coat required under 401.3.10.10 will not be subject to price adjustment.

5.3 Payment for patching existing pavements under 3.3.1 will be made at the contract unit price for Item 403.11 or 411.1, as
ordered.

Pay items and units:

| 410.22 Asphalt Emulsion for Tack Coat Galion
410.31 Asphalt Surface Treatment Including Blotter Material Ton
410.41 Emulsified Surface Treatment Including Blotter Material Ton
2016 NHDOT
Go To=9 TOC Division 100 Division 200 Division 300 Division 400 Standard

Division 500 = Division 600 Division 700 Specifications

Board of Aldermen Page 21
September 14, 2016

Vice President Wilshire

Tomorrow is the dedication ceremony for the Legacy Playground at 5:30 p.m. at Labine Park.
Committee announcements:

Alderman Dowd

There will be a Budget Review Committee meeting on Tuesday, September 20" at 7:00 p.m. in the
Aldermanic Chamber. On Thursday the 22™ is the School Construction Projects Committee and the
Joint Special School Building Committee will meet at Nashua High School North. JSSB will be
immediately following the CPC meeting.

Alderman Clemons

Personnel/Administrative Affairs Committee will be next Monday at 7:00 p.m. in these chambers.

Alderman Cookson

The Infrastructure Committee will immediately follow the Personnel/Administrative Affairs Committee on
Monday evening.

Alderwoman Melizzi-Golja

Since there was no business before the Planning and Economic Development Committee we have
cancelled the meeting for September 20".

ADJOURNMENT

MOTION BY ALDERMAN SIEGEL THAT THE SEPTEMBER 14, 2016, MEETING OF THE BOARD OF
ALDERMEN BE ADJOURNED

MOTION CARRIED

The meeting was declared adjourned at 9:22 p.m.

Attest: Patricia D. Piecuch, City Clerk

Permanent Funds

$

Total
Cemetery Library Other Nonmajotr
Permanent Penmanent Penranent Govemmental
Funds Funds Funds Subtotal Funds
827,179 $ 360.800 - $ 1,127,979 $ 5,605,298
22,491,143 7,067,140 266.826 29.735, 109 32,965,592
- - - - 101,060
- - = - 7449618
- = = - 1,003,995
- - : . 27,107,809
23,228,322 $ 7.367.940 266.826 $30,863,088 $74,233,372
- $ - - $ - $ 431,936
* - - - 6,876,529
462,443 4896 . 467,339 18,183,895
462,443 4,896 - 467,339 25,492,360
21,616,894 6,337,944 249,292 28,204,130 28,204,130
1,148,985 1,025,100 17.534 2,191,619 15,647,854
5 - = - 20,946,510
- . = . (16,057,482)
22,765,879 7,363,044 266.826 30,395,749 48,741,012
23,228,322 $7,367,940 266,826 $ 30,863,088 $ 74,233,372

170

SECTION 413

SECTION 413 -- HOT-POURED CRACK SEALANT

Description
1.1 This work shall consist of filling the major cracks in the pavement with an approved sealant material. The cracks to be filled

will be those designated by the Engineer.

Materials & Equipment
2.1 Material shal! be of the hot-poured type and be a product as included on the Qualified Products List.

2.1.1 Material not covered by an asphalt pavement overlay shall meet the requirements of ASTM D6690 Type II.

2.1.2 Material covered by an asphalt pavement overlay shall be low modulus conforming to ASTM D6690 Type IV except
cone penetration shall be 110-150,

2.2 Equipment shall meet the approval of the Engineer and shall be maintained in good working condition at all times.

{a) Air compressors shail be portable and capable of furnishing not less than 100 ft of air per minute at not less than 90 psi
pressure at the nozzle. The compressor shall be equipped with traps that maintain the compressed air free from oil and
water. Filters shall be inspected daily to ensure that they are still effective and not saturated with oil and moisture.
Saturated and/or damaged filters shall be replaced.

(b) Melting kettles shall be of the double-boiler, indirect-fired, portable type. The kettle shall be mounted on rubber tires and
shall be equipped with a metal shield beneath the firebox to protect the pavement. The space between the inner and outer
shells shall be filled with a suitable heat transfer oi] or substitute having a flash point of not less than 530°F. The kettle
shall be equipped with a satisfactory means for agitating the joint sealer to maintain a uniform temperature. This may be
accomplished by continuous stirring with mechanically operated paddles or by a continuous circulating gear pump
attached to the heating unit, or by both paddles and a pump. Kettles equipped with rocking type agitation shall not be
used. The kettle shall be equipped with a thermostatic control calibrated between 200° and 550°F.

(c) Hand pouring pots shall be equipped with mobile carriages and rubber shoes and have flow control valves that allow all
cracks to be filled to refusal.

(d) Routers for reshaping cracks shall be of the multiblade rotary cutter head type.

(ce) Hot-air lances for blowing clean and drying cracks shall be an approved propane gas burner and compressed air device
that does not allow the flame to touch the pavement.

(f) The wand applicator shall be connected to the holding tank through an applicator hose that ensures the safety of the
operator and allows the operator to control the flow of material. A device shall be mounted to bypass material into the
holding tank if the applicator nozzle is shut off.

Construction Requirements
3.1 All cracks greater than 1/8” up to 3/4” in width shall be shaped with a power router to a dimension of 3/4” +1/8” wide by

5/8” deep rectangular shape and treated unless otherwise directed. Cracks greater than 3/4” shall be treated but not routed. Router
bits will be maintained to ensure that rectangular dimensions are achieved. A rounded shape will not be allowed.

3.2 All cracks ordered treated shall be hot-air lance cleaned of dirt, foreign material, and loose edges.
3.3 The material removed from the cracks shall be removed from the roadway surface prior to reopening the roadway to traffic.

3.4 The hot-poured sealant shall be maintained in the kettle and applied at the temperature range specified by the manufacturer.
The Contractor shall furnish the Engineer with copies of the manufacturer’s literature indicating the application temperature range.

3.5 The hot-poured sealant shall be applied to the cracks using hand pouring pots or wand applicators within 2 minutes following
hot-air lance cleaning. Only wand applicators shall be used for crack filling when cracks are not covered by an asphalt pavement
overlay.

3.6 All cracks to be treated shall be filled to 1/16” to 1/8” below the pavement surface with hot-poured sealant with the sealant
left slightly concave. Filling flush, overfilling, and overbanding of cracks will not be allowed. Sealant shall tightly bond to the
pavement, The sealant bond to the pavement shall be checked after it has sufficiently cooled. If the sealant does not bond to the
pavement, sealant shall be removed and crack sealing operations discontinued until debonding problem is corrected.

3.7 No hot-air lance cleaning or crack sealing shall be performed when the pavement and cracks are wet or the ambient
temperature is below 50°F.

3.8 All work shall be performed in a neat manner. The sealant shall be allowed to cool sufficiently to prevent lifting, sticking,
and tracking prior to returning the pavement segment to traffic.

3.9 The contents of the kettle shall be emptied at the end of each day and shall not be reused.

2016 NHDOT
GoTo=)> TOC Division 100 Division 200 Division 300 Division 400 Standard
Division 300 Division 600 Division 700 Specifications

SECTION 413
Method of Measurement
4.1 Hot-poured crack sealant will be measured by the pound of material incorporated in the work.

Basis of Payment
5.1 The accepted quantity of hot-poured crack sealant will be paid for at the contract unit price per pound, complete in place.

5.2 Cleaning and routing will be subsidiary.

Pay item and unit:

413.1 Hot-Poured Crack Sealant Pound
413.2 Hot-Poured Crack Sealant (Low Modulus) Pound
2016 NHDOY
Go To= TOC Division 100 Division 20¢ Division 300 Division 400 Standard

Division 500 =Division 600 =Division 700 Specifications

EXHIBIT D

IFBO660-052418
2018 PAVING PROGRAM
ASPHALT FESTING
Contractor: S. W, Cole Engineering, inc.
City of Nashua, New Hampshire
Division of Public Works
Bid Schedule
Estimated Item Description Unit Price Total Price
ltem No. Quantity Units with Unit Bid Price in Words in figures in figures
A “455° EA Gradation Test
Seventy Five Dollars and
Zero Gents $75.00 $11,625,
B 155 | EA Binder Content Test
Seventy Five Dollars and /
Zero Cents $75.00" $11,625-
c “455 '-. EA Bulk Density Test
Thinty Dollars and
Zero Cenis $30.00 $4,650
Dd 155 EA Theoretical Maximum Density Test
Ninety Five Dollars and
Zero Cents $95.00 $14,725
E 30 EA Asphait Pickup
Forty Dollars and
zero Cenis $40.00 $1,200
TOTAL BID PRICE FIGURES ais

TOTAL OF BID ITEMS (words) Forty Three Thousand Eight Hundred Seventy Five Thousand Dollars and Zero Cents

Contractor: S. W. Cole Engineering, inc.

Authorized Signature: ht. BZ. 1 2

Date: 5/24/2018

Address: 13 Delta Drive #8, Londonderry, New Hampshire 03053

Phone: 603-716-2114 Fax: 603-716-2112
Email Address: andrew .michaud@sweole.com

Page 1 of 1

THE CITY OF NASHUA “The Cate City’

Financtal Services

Purchasing Department

ASIST LTE oe RAR ROBISON REN

May 31, 2018
Memo #18-161

TO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: PAVEMENT MANAGEMENT SERVICES FOR 2018 PAVING PROGRAM (VALUE:
$328,675)
DEPARTMENT: 160 ADMIN/ENGINEERING; FUND: BOND

Please see the attached communication from Stephen Dookran, P.E., City Engineer, dated May 31, 2018
for information related to this purchase.

Pursuant to NRO § 5-83 Professional Services (A) In the purchase of accounting, architectural, auditing,
engineering, legal, medical and ambulance services and purchases of independent professional
consultant services for personnel, data processing, actuarial, planning, management and other
comparable purchases competitive bidding shall not be required.

The City Engineer, Board of Public Works (May 31, 2018 meeting) and the Purchasing Department

recommend the award of this contract in the amount of $328,675 to Hayner/Swanson, Inc. of Nashua,
NH.

Respectfully,

an Kooken
Purchasing Manager

Cc: S Dookran L Fauteux

229 Main Street « Nashua, New Hampshire 03061 » Phone (603) 589-3330 e Fax (603) 589-3233 |

To:

From:

Re:

E. Motion:

Attachment:

Discussion:

City of Nashua, Public Works Division

Board of Public Works Meeting Date: May 31, 2018

Stephen Dookran, P.E., City Engineer
Engineering Department

Pavement Management
Engineering Services

To approve the engineering services contract with Hayner/Swanson. Inc. of Nashua,
NH in the amount of $328,675 for the management and construction administration
of the paving program. Funding is contingent upon the approval of the bonds that
will be funding the multi-year paving project. Department: 160 Admin/Engineering;
Fund: Bond; Activity: Paving.

HSI Proposal

This year, Public Works has taken on a very extensive paving program that includes a
$6.7 Million contract with Newport Construction. $1.1 Million for Brox to pave
streets from last year. $4.4 Million of Federal Highway funds to pave some arterials,
as well as micro surfacing and crack sealing contracts.

A professional services contract which Hayner Swanson (HSI) is necessary to assist
City Engineering staff with the overall management, coordination, construction
administration and observation. The effort in construction coordination is significant
given that there will be multiple crews in several locations at the same time.

HSI’s contract includes preparing for next year’s (2019) paving program, street
selection and evaluating coordination with utilities and preparing plans and bid
documents. This contract will run from July 1, 2018 to March 1, 2019 at which time,
we expect to be awarding the 2019 construction contract. More details of HSI’s
services are in their proposal (attached). DPW continues to recommend HSI for these
types of services because of their experience, their attention to cost control and their
responsiveness to the City’s needs.

CLTST
UV Hayner/Swanson, Inc.

Civil Engineers/Land Surveyors

May 24, 2018

Ms. Lisa Fauteux
Director of Public Works
9 Riverside Street
Nashua, NH 03062

Dear Ms. Fauteux:

Hayner/Swanson, Inc. (HSI) is pleased to submit this proposal to provide professional services in
support of the City of Nashua’s paving program. Consistent with the services we have provided
in an earlier contract, this work will be performed as an extension of the City Engineering
Department.

The term of this proposed contract will be from July 1, 2018 through March 1, 2019. Itis
anticipated that the extent to which support will be needed during the 2019 construction season
will be assessed in January 2019.

In this highly integrated effort, coordination and construction administration will be staffed by
both City staff and HSI personnel.

We understand that the services to be provided on the paving program will be varied and will
include management, administration, design, bid phase support and construction observation. At
times, we will be directly responsible for tasks. At other times, we will work in direct support of
City staff. Our commitment to flexibility and to consistent and clear communication with the
City will continue to be a key element in this program.

We understand that our responsibilities may be adjusted by the City based upon the specific
needs and workload of the City staff. We anticipate that tasks which we may be called upon to
undertake include:

¢ Overall coordination related to programming and scheduling project work

* Coordination with Stantec as the specification for pavement repairs is finalized for each
roadway segment

* Preparing, tracking and updating the overall program timeline

« Preparing budget updates as bids are received

¢ Coordination with privately owned utilities in advance of bidding, as well as in advance
of construction

3 Congress St. Nashua, NH 03062-3301 +» (603) 883-2057/5057 (fax) - www hayner-swanson.com