Search

4.

28 and maximum aggregate size of 2 inch. Base and binder courses shall be 75 gyration
with PG 64-28 and maximum aggregate size of % inch.

High Strength Pavement wearing courses shall be 75 gyrations with PG 76-28 and
maximum aggregate size of % inch.

High strength wearing course pavement shall be used on the following roadways:
e East Dunstable Road
e East Hollis Street
e Main Street
e Medical Center Drive

The following course thicknesses shall be used:

2” Mill & Overlay
2” wearing course.

3.5” Mill & Overlay
1.5” wearing course over 2” binder course.

Reclamation
1.5” wearing course over 2” binder course.
2” wearing course over 3” binder course.

THER RKI TRACT AREA
Other City and utility work may be in progress within the project area during work in this
contract.

The CONTRACTOR shall strive to provide coordination with other work within the
project area to minimize disruption.

The CONTRACTOR shall notify the ENGINEER with as much advance notice as
reasonably possible of any concerns with other work in the project area.

In order to allow anticipated completion of work presently underway, work on this
contract shall not start on the following streets until after the date indicated:

Main Street.....00...0...00...0000000. June 1, 2021
Pine Street........0.0.0.0000 0.00000 eae June 1, 2021
Fifield Street.......0...00000.00000.0002. June 1, 2021
West Hollis Street.........0........... August 15, 2021

COORDINATION WITH UTILITIES
Dropping and adjustment of telephone, gas and water castings will be the responsibility
of Consolidated Communications, Liberty Utilities, and Pennichuck Water Works.

CONTRACTOR shall coordinate this effort with the respective utilities.

SC - 2 of 9

TIE-IN AT SIDE ROAD
Where roadways are being milled to a depth of 3.5 inches, side road tie-in areas will be
milled to a depth of 2.0 inches.

INTERIM MILESTONES FOR SUBSTANTIAL MPLETI
The following Substantial Completion Milestones shall be met:

All roads, except those with delayed start dates (see Paragraph 4 - Other Work in
Contract Area), shall be binder paved by July 1“, 2021.

The entire length of all roadway segments shall be substantially complete by October 15,
2021.

COMPLETION OF WORK ON INDIVIDUAL STREETS
Streets specified as 2” mill and overlay shall have all ADA ramp work completed and be
final paved within three weeks of milling.

Streets specified as 3.5” mill and overlay or reclaim shall be binder paved within three
weeks of milling or reclamation. All ADA ramp work shall be completed within three
weeks after placement of binder pavement.

Streets shall be final paved within two weeks after structures have been raised to their final
elevation, and ADA ramp work has been completed.

Failure to pave individual streets within the specified time frames without reasonable
cause shall be considered nonperformance.

The ENGINEER may remove streets from the scope of the Contract should repeated
instances of nonperformance occur.

The determination of whether or not delay in paving individual streets occurred with
reasonable cause will be at the ENGINEER’s discretion.

WORK HOURS

Reference is made to Section 6.02 Labor; Working Hours of the General Conditions.

Normal working hours shall be from 7:00 AM to 5:00 PM Monday through Friday. No
weekend, holiday or night work will be allowed without advance written approval of the
City ENGINEER.

Permission is granted to extend the work hours to 7:00 AM to 5:00 PM for the following
streets listed in General Condition Section 6.02C.

East Hollis Street
East Dunstable Street
Main Street

Pine Hill Road

West Hollis Street

SC - 3 of 9

10.

11.

12.

Recognizing the difficulty in maintaining traffic as well as access to abutting properties,
work on the following streets shall be performed at night: East Hollis Street, Main
Street, and Medical Center Drive.

If traffic and access to abutting properties cannot be maintained during daytime hours on
other streets in the contract to the OWNER’s satisfaction, CONTRACTOR may be
directed to perform the work at night at no additional cost.

Requests for work beyond those hours normally allowed on weekdays shall be made by
the CONTRACTOR at least 72 hours in advance.

Requests for work on Saturdays, Sundays and holidays shall be made at least one week in
advance.

CONTRACTOR should not assume requests for hours beyond the hours and days
normally allowed will be approved. Requests will be considered on a case by case basis.

ADJUSTMENT OF MANHOLES
Manholes shall be adjusted so that finished paving shall be flush with the manhole.

In the instance when manholes are set lower than adjacent pavement by an amount equal
to or greater than 2 inch measured with use of a straight edge, the ENGINEER will at
their sole discretion either require the structure to be readjusted at the CONTRACTOR’s
expense or not make any payment to the CONTRACTOR for the adjustment of the
structure.

In the instance when manholes are set lower than adjacent pavement by an amount less
than % inch measured with use of a straight edge, the ENGINEER may at their sole
discretion either require the structure to be readjusted at the CONTRACTOR’s expense or
not make any payment to the CONTRACTOR for the adjustment of the structure. This
determination will be made with consideration of the location of the manhole with respect
to vehicular, bicycle and pedestrian traffic.

TRACTOR’S REPRESENTATIVE
The CONTRACTOR shall designate a representative who will be available to respond to
emergency calls by the OWNER at any time day and night and on weekends and holidays
should such a situation arise.

Should the City determine action by the City is needed or other costs are incurred because
the CONTRACTOR’s Representative is not available, the City will back-charge the
CONTRACTOR for associated expenses.

HEDULING AND RDINATI
Reference is made to General Conditions Section 2.05, Before Starting Construction and
General Conditions Section 6.04, Progress Schedule.

Prior to the start of construction, the CONTRACTOR shall submit a comprehensive
schedule to the ENGINEER for review and acceptance.

The schedule will identify the number of crews and completion dates for all critical
elements of work.

SC - 4 of 9

13.

14.

15.

Detailed updates of the schedule shall be submitted to the ENGINEER for review and
acceptance on at least a monthly interval. Updates shall show work through project
completion.

The OWNER may withhold progress payments if acceptable monthly schedule updates
are not submitted.

The CONTRACTOR shall not increase the number of crews assigned to the work as
identified in the schedule without providing at least one week advanced notice to the
ENGINEER.

SUPERINTENDENCE OF THE WORK

Reference is made to General Conditions Section 6.01, Supervision and Superintendence.

CONTRACTOR shall provide appropriate onsite superintendence of all aspects of the
work whether performed by the CONTRACTOR or by sub-contractors.

Qualified Superintendent(s) shall be assigned for all crews. Contact information will be
provided for all Superintendents.

USE OF GROUNDS

Any area outside the limits of the project area (right-of-way within project limits) which
the CONTRACTOR may require for storage of equipment and materials, or for other
purposes necessary in the performance of the Work, shall be secured by the
CONTRACTOR at their own expense. Materials, including excavation intended for
backfill, shall not be stored or stacked within any roadway clear zones, or in a manner
that obstructs adequate sight lines unless specifically permitted in writing by the
ENGINEER. The CONTRACTOR is responsible for providing security as required and
erosion controls at no cost to the City.

TRAFFI TROL PLA
Reference is also made to Section 17.07 Road Closures and Traffic Delays of the
General Conditions.

The following are considered part of the Traffic Control Plan:

1. Section 618 and 619 of the Standard Specifications.

2. Work Zone Traffic Control Standard Sheets*

3. Manual on Uniform Traffic Control Devices, (MUTCD), 2009 Edition,
including all current updates and official interpretations.

4. Positive Protection Guidance for Work Zones (PPGWZ)*

5. Flagger and Uniformed Officer Use in Work Zones Policy and Guidelines*

* Available online under Doing Business with DOT>CONTRACTORs at www.nh.gov/dot
or through the NHDOT Contracts office (603-271-3732).

The CONTRACTOR shall provide necessary traffic control devices to ensure the safety of
the workers, traveling public, and property owners on this project. The above referenced
specifications, guidelines, and provisions herein provide minimum requirements; the
CONTRACTOR may be directed to expand upon the Traffic Control Plan if conditions

warrant.
SC -5 of 9

16.

All signs, channelizing devices and arrow boards as required by the Manual on Uniform
Traffic Control Devices, including part six, as amended, and the above Standard Sheets
shall be in place prior to moving any equipment onto the pavement.

The CONTRACTOR shall provide trained personnel, including Uniformed Officers and
Flaggers in accordance with Section 618, to be responsible for the maintenance of traffic.

The CONTRACTOR shall be responsible to assure that all materials furnished and used
for maintenance of traffic are certified for reflectivity. The CONTRACTOR shall
replace damaged devices without additional compensation. Although the ENGINEER
may direct the CONTRACTOR to replace damaged devices, the CONTRACTOR has
full responsibility to inspect all materials and devices for maintenance of traffic and
correct any deficiencies on a daily basis.

Regardless of action that may be taken or not taken by the ENGINEER, the
CONTRACTOR shall be solely responsible for the appropriateness, reflectivity and
condition of all materials provided as well as placement and maintenance of traffic
control elements.

The CONTRACTOR shall submit a Traffic Control Plan prior to work on arterial
roadways. This Traffic Control Plan will describe how the CONTRACTOR proposes to:

A. Stage the work to maintain and control traffic during the lowering of structures
within paved areas; milling operations; and paving operations.

B. Maintain access to all residences and businesses through the duration of
construction.

C. Lane usage during various phases of work will be described. A minimum of 11-
foot width shall be provided for all lanes open to traffic.

D. A minimum of one lane in each direction shall be provided at all times. Should
the CONTRACTOR consider it necessary to reduce this requirement to
alternating one- way use, the constraints justifying such a restriction must be
explained fully. If approved at any location in this contract, the use of
alternating one-way traffic will be for a short duration only.

E. The CONTRACTOR shall describe in the Traffic Control Plan minimum
conditions which will be provided at the end of working hours. At a minimum,
if a vertical break of more than one inch exists along the direction of travel and
vehicles are operating on the higher surface, a pavement fillet will be provided
along the break. The pavement fillet shall be constructed with a slope of 12
inches horizontal for each one inch vertical.

F. Full lane use shall be maintained for weekend and holiday periods.

REMOVAL OF DEBRIS AND SURPLUS MATERIAL

Neither debris nor surplus material including structures (frames, covers, and grates) shall
be deposited on private property or impede pedestrian ways.

Debris and surplus material shall be removed from the project area as promptly as
practical.

SC - 6 of 9

17.

18.

19.

20.

If the CONTRACTOR should fail to promptly remove debris or surplus material from
the project area, or if CONTRACTOR deposits same on private property, progress
payment(s) may be withheld.

DISPOSAL OF SURPLUS EXCAVATED MATERIAL

All milled (cold planed) pavement shall be delivered to the Four Hills Landfill in
Nashua, NH. Unless otherwise specified herein, all other excess material not required for
use on the project shall be disposed of legally and safely by the CONTRACTOR at his
discretion outside of and away from the limits of the project, without additional
compensation.

MAINTENANCE DURING WEATHER EVENTS
The CONTRACTOR’ s obligation to protect the public traveling through the project site

shall include maintaining the work and maintaining safe passage during rain and other
weather events.

The CONTRACTOR shall plan in advance of forecasted inclement weather events and
shall assign crews to perform maintenance of unpaved areas open to traffic during and
after inclement weather events. CONTRACTOR is responsible to coordinate with the
ENGINEER and other City officials as appropriate.

CONTRACTOR shall be prepared to respond in a timely manner if the City determines
that circumstances warrant action when the CONTRACTOR is not onsite.

DRAINAGE
The CONTRACTOR shall provide necessary measures to provide drainage and minimize
ponding on paved and unpaved surfaces.

The CONTRACTOR shall be responsible to provide means for stormwater runoff to
enter the drainage system at locations where structures are lowered in advance of milling
or reclamation.

During the preconstruction meeting, the CONTRACTOR shall describe provisions to be
made for drainage. Provisions made and methods used shall have been proven by
successful use on past projects of a similar nature.

PROTECTI FMANHOLE ATCH BASINS AND PIPELINE

Appropriate measures will be taken to protect manholes, catch basins and other structures
as well as pipelines from debris and other materials entering the system through open or
removed covers or grates.

Should material enter the system during the CONTRACTOR’s activities, this material
shall be removed in a timely manner at the CONTRACTOR’s expense.

The CONTRACTOR may be required to clean structures and pipelines downstream of
the location(s) where material entered the system.

The CONTRACTOR may be required to provide closed circuit television (CCTV)
inspection services to verify that material has been removed at the CONTRACTOR’s
expense.

SC - 7 of 9

21.

22.

23.

24.

25.

26.

PROTECTI FLANDSCAPI
CONTRACTOR shall take appropriate measures to protect trees, shrubs and other

landscaping. Branches, limbs and roots shall not be cut except with permission of the
ENGINEER.

Where cutting is necessary, work shall be performed by qualified workers.

RESTORATI FEXISTI PROPERTY

The CONTRACTOR shall be responsible for the preservation of all public and private
property and structures, and shall use every precaution necessary to prevent damage
thereto. If damage is done to public or private property, such property shall be promptly
restored by the CONTRACTOR, at his/her expense, to a condition similar or equal to
that existing before the damage was done, to the satisfaction of the ENGINEER.

Failure to promptly restore existing property and structures including, but not limited to
driveways and lawns, may result in the ENGINEER’s determination that associated work
is not complete and therefore not eligible for progress payment. Such associated work
may include, but not be limited to paving, pipe installation, catch basins, manholes and
curbing.

Unless specifically agreed to in advance, driveway tie-ins will be paved concurrent with
top course paving operations.

In no circumstances shall driveway tie-ins not be completed within two weeks of the
adjacent top course paving.

PERATI ITH REFUSE PICKUP
The CONTRACTOR shall determine the schedule for trash pickup by contacting the City
of Nashua’s Solid Waste Department. The CONTRACTOR shall cooperate and make
arrangements to insure that trash pickup is not delayed or obstructed in any way. This
may involve the CONTRACTOR bringing trash barrels to the front or backside of the
work area for pickup by the Solid Waste Department and then returning the barrels back
to each house.

PERATI ITH ALITY A RANCE
A minimum of one core per street shall be taken. Cores shall be cut and delivered to
the City within 24 hours of pavement placement. Core locations will be selected
randomly by the ENGINEER. Failure to cut and deliver cores may result in delay of
progress payments for pavement.

PROPERTY I RANCE
Property insurance is referenced in the General Conditions (Article 5.05).

Property insurance is not required for this contract.

ACCESS TO PRODUCTION FACILITIES

The City of Nashua may choose to have inspection and testing performed at the asphalt
plant. All relevant provisions of the Standard Specifications, including but not limited
to Section 3.1.6 Access to Production Facilities — General, shall apply.

SC - 8 of 9

27.

28.

29.

30.

ADA MPLIANCE

A. Sidewalk curb ramps shall be constructed in compliance with ADA requirements as
well as NHDOT Standard Details. The NHDOT Standard Details are available at:
https://www.nh.gov/dot/org/projectdevelopment/highwaydesign/detailsheet…
ts/erb_ramp_1 9.pdf

B. The CONTRACTOR shall take measurements as needed before work commences at
each ramp location to assure that the CONTRACTOR has all control needed to
construct sidewalk improvements in compliance with ADA requirements.

C. The ENGINEER will meet with the CONTRACTOR in advance of work at each
ramp location to assure concurrence on the limits and extent of work needed to
achieve ADA compliance.

D. If in the opinion of the CONTRACTOR, construction of an ADA compliant ramp is
not possible at any location the CONTRACTOR shall notify the ENGINEER in
writing in advance of any construction activities at that location. Unless notification
of any such concerns is made to the ENGINEER, CONTRACTOR shall be singularly
responsible for the ADA compliance of the finished work.

E. During construction the CONTRACTOR must maintain pedestrian detours and
provide an ADA compliant fillet at each ramp location until final paving is complete.

PUBLIC CLAIMS

All claims received by the City or the CONTRACTOR from the public shall be
documented using the Claim Tracking Form (see Division 8) in the contract. The
CONTRACTOR shall respond to the claimant within 7 calendar days of receiving the
claim and within 7 calendar days after each follow up correspondence. A logbook of claim
forms shall be kept by the CONTRACTOR and made available to the ENGINEER at any
time. The CONTRACTOR shall notify the ENGINEER when a claim has come to a
resolution.

Failure to promptly respond to claims may result in progress payments being withheld.

CONTRACTED ENGINEER

The City's contracted engineer for this project is Hayner/Swanson, Inc. The contracted
engineer shall act on the City's behalf in fulfilling duties of the ENGINEER as delegated
by the DPW Engineering Department, and shall have full authority to act as the
ENGINEER while serving in that capacity. The City reserves the right to terminate
contracted engineering support or change its contracted engineer at its sole discretion
without advanced notice or approval of the CONTRACTOR.

360 DEGREE TRAFFIC CAMERAS
The CONTRACTOR shall install Grid Smart 360 Degree Traffic Cameras at the following
intersections:

Coliseum Avenue at Broad Street
East Dunstable Road at Harris Road
East Dunstable Road at Lund Road
Main Street at Medical Center Drive
Veterans Drive at D.W. Highway

The GRIDSMART 360 Degree Traffic Camera shall be installed before the wearing
course is paved.

SC - 9 of 9

DIVISION 7

LIST AND MAP OF ROADWAYS

City of Nashua, New Hampshire
Division of Public Works
IFBO660-012821
2021 Paving Program - Arterial and Collector Roadways

Roadway
Street Name From To Treatment
BROOK VILLAGE RD SPIT BROOK RD END OF PUBLIC ROW 2" M&O
COLISEUM AVE BROAD ST 1130 FT SOUTH OF BROAD ST 2" M&O
PITTSBURGH AVE PROGRESS AVE NORTHEASTERN BLVD 2" M&O
RIDGE RD CURTIS DR LEGACY DR 2" M&O
ALMONT ST LAKE ST NOWELL ST 3.5" M&O
COLISEUM AVE 1130 FT SOUTH OF BROAD ST SOUTH OF DRIVEWAY #175 3.5" M&O
EAST DUNSTABLE RD-1 ROBINSON RD TIMBERLINE ST 3.5" M&O
EAST DUNSTABLE RD-2 — |TIMBERLINE ST NEW SEARLES RD 3.5" M&O
EAST HOLLIS ST MAIN ST MEDICAL CENTER DR 3.5" M&O
HARRIS ST (N) NORTHEASTERN BLVD EAST DUNSTABLE RD 3.5" M&O
MAIN STREET W. HOLLIS ST MEDICAL CENTER DR 3.5" M&O
NORTHEASTERN BLVD MAIN DUNSTABLE RD EAST DUNSTABLE RD 3.5" M&O
NOWELL ST ALMONT ST PINE ST 3.5" M&O
PINE ST DEXTER ST LAKE ST 3.5" M&O
PROGRESS AVE MAIN DUNSTABLE RD CONGRESS ST 3.5" M&O
VETERANS DR DANIEL WEBSTER HWY S. MAIN ST 3.5" M&O
WEST HOLLIS ST SIMON AVE BADGER ST 3.5" M&O
FIFIELD ST ALLDS ST DEAD END Reclaim
MEDICAL CENTER DR MAIN ST E. HOLLIS ST Reclaim
PINEHILL RD COBURN AVE CRIMSON CT Reclaim
PROGRESS AVE CONGRESS ST PITTSBURGH AVE Reclaim