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drawings during the review do not relieve the Contractor from compliance with
requirements of the Contract Documents. The Contractor is responsible for: confirming and
correlating all quantities and dimensions; selecting fabrication processes and
techniques of construction; coordinating his work with that of all other trades; and
performing his work in a safe and satisfactory manner. The review of the shop drawings is
general and shall not relieve the Contractor of the responsibility for details of design,
dimensions, code compliance, etc., necessary for interfacing with other components, proper
fitting and construction of the work required by the Contract and for achieving the specified
performance.

H. With few exceptions, shop drawings will be reviewed and returned to the Contractor within
15 days of submittal.

I. No material or equipment shall be purchased or fabricated especially for this Contract nor
shall the Contractor proceed with any portion of the work, the design and details of which are
dependent upon the design and details of equipment or other features for which review is
required, until the required shop and working drawings have been submitted and reviewed
by the Engineer as to their general conformance and compliance with the project and its
Contract Documents. All materials and work involved in the construction shall then be as
represented by said drawings.

J. Two copies of the shop and working drawings and/or catalog cuts will be returned to the

Contractor. The Contractor shall furnish additional copies of such drawings or catalog cuts
when he needs more than two copies or when so requested.

END OF SECTION

2019 Sewer Replacement Project Submittals
Nashua, NH 01330-2

SECTION 01331

DOCUMENTATION

PART 1 - GENERAL

1.01 WORK INCLUDED:

A. This section covers the requirements for documentation to be furnished by the
Contractor on this project.

1.02 RELATED WORK:

A. Section 02441, CLEANING AND TELEVISION INSPECTION OF PIPELINES
1.03 DOCUMENTATION:

A. The Contractor shall maintain CCTV inspection video of sewer segments, for each sewer
line segment undergoing lining under this contract and provide two (2) copies of the video
in digital format and a written report within five (5) working days of the work being
performed.

B. The report(s) as a minimum shall clearly identify:

1. Project Name

2. Street Location, Name, Intersection, Station

3. | Manhole Identification number.

4. Date of inspection

5. Total Length of Line Inspected

6. Line Size(s)/Joint Spacing/Type

7. Line and Manhole(s) Condition

8. Significant observations such as service connections, offset joints, drop joints,
broken/cracked pipe, protruding services, roots, collapsed sections, infiltration,

presence of scale and corrosion and other discernible features.

9. Reference to CCTV video number, including beginning and ending locations.

2019 Sewer Replacement Project Documentation
Nashua, NH 01331-1

All CCTV video files shall be identified by street names, manhole designations, pipe
diameter, length, date work was performed, labeled “City of Nashua”, contract number
and sub area designation.

END OF SECTION

2019 Sewer Replacement Project Documentation
Nashua, NH 01331-2

SECTION 01735

CUTTING, CORING AND PATCHING

PART 1 - GENERAL
1.01 WORK INCLUDED:

This Section covers the cutting, coring, rough and finish patching of holes and openings in
existing structures.

PART 2 - PRODUCTS
2.01 SEALING MATERIALS:

A. Mechanical seals shall be modular, adjustable, bolted, mechanical type consisting of
interlocking synthetic rubber links shaped to continuously fill the annular space between the
pipe and sleeve. The seal shall be rated by the manufacturer for 40 feet of head or 20 psig.
Mechanical seals shall be Link-Seal, manufactured by Thunderline Corp., Wayne, ML, or
approved equal.

B. — Sealant shall be a two part foamed silicone elastomer as manufactured by Dow Corning
Co., product No. 3-6548 silicone R.T.V.; 3M brand fire barrier products caulk C.P. 25 and
3M brand putty 303; Flame-Safe fire stop systems Fig. No. FS-500 by Thomas & Berts
Corporation, or approved equal. Packing shall be a fire retardant pliable material, Fig. 310 by
Sealtite Co.; White Oakum W.S.-600 by American Manufacturing Co., or approved equal.
Sealant bead configuration, depth and width shall be in accordance with manufacturer's
recommendations.

2.02 MISCELLANEOUS MATERIALS:

A. Bonding compound shall be Sikadur Hi-Mod epoxy by Sika Corporation, or equivalent by
Euclid Chemical Corporation, Master Builders Company, or approved equal.

B. Non-shrink grout shall be Masterflow 713 by Master Builders Company; Euco N-S by
Euclid Chemical Co.; Five Star Grout by U.S. Grout Corp. or approved equal.

C. Materials for finish patching shall be equal to those of adjacent construction.
PART 3 — EXECUTION
3.01 GENERAL:

A. The Contractor shall leave all chases or openings for the installation of his own or any
other contractor's or subcontractor's work, or shall cut the same in existing work, and shall see

2019 Sewer Replacement Project Cutting, Coring and Patching
Nashua, NH 01330-1

The H.L. Turner Group Inc.

27 Locke Road Concord, NH 03301

: 603.228.1122 hiturner.com

Nashua Riverfront Development Project
Final Engineering Design

5/11/2022
TASK DESCRIPTION WORK HOURS TOTAL
PM Structural PE Sr PD Tc HOURS
Segment 4 - Boardwalk Connector ai! ah
4.1 - Scour, Debris & Ice Loadings 4 16 2 22
4.2 - Structural Design - Pile, Foundation & 4 AG ri 20 70
Structural Details :
4.3 - Final Engineering Plans & Specifications 8 50 4 60 4 126
a a a a a ae 45) te Oe Coe ee ee ee ee ee ee ee —— a a Ga aa0 SPEEA ENE Dy! for Reps! SRPLESEERYS (Til. Shay 2k! yeaa
90 24 218
a a a a a a no oe re oe eve ere cee ee ee ee ee ee ee ee re Oe Pep ees ee ee ee ee ee ee ee ee ee ee ee en ee ee en ee ee ees oe oe
TOTAL HOURS 16 90 24 80 8 218
ESTIMATED ENGINEERING COSTS
Work Estimated
Hours Hourly Rate Costs
Project Manager (PM) 16 $ 150.00 $ 2,400.00
Structural Engineer (Structural) 90 $ 185.00 $ 16,650.00
Project Engineer (PE) 24 $ 130.00 $ 3,120.00
Sr. Project Designer | (Sr PD) 80 $ 105,00 $ 8,400.00
Technical Coordinator (TC} 8 § 100.00 $ 800.00
218] Total Fully Burdened Labor $ 31,370.00
Geotech Subconsultant $ -
Expenses $200
Estimated Direct Costs $ _ 200.00
TOTAL ESTIMATEO COST= $ 31,570.00

B.

3.02

3.03

A.

that all sleeves or forms are at the work and properly set in ample time to prevent delays.
He shall see that all such chases, openings, and sleeves are located accurately and are of proper
size and shape and shall consult with the Engineer and the contractors and subcontractors
concemed in reference to this work.

In case of his failure to leave or cut all such openings or have all such sleeves provided and set in
proper time, Contractor shall cut them or set them afterwards at his own expense, but in so doing
he shall confine the cutting to the smallest extent possible consistent with the work to be done.
In no case shall piers or structural members be cut without the written consent of the Engineer.

The Contractor shall not cut or alter the work of any subcontractor or any other contractor, nor
permit any of his subcontractors to cut or alter the work of any other contractor or
subcontractor, except with the written consent of the contractor or subcontractor whose work is
to be cut or altered or with the written consent of the Engineer. All cutting and patching or
repairing made necessary by the negligence, carelessness, or incompetence of the Contractor or
any of his subcontractors shall be done by or at the expense of the Contractor and shall be
the responsibility of the Contractor.

All cutting and coring shall be performed in such a manner as to limit the extent of
patching.

All holes cut through concrete and masonry walls, slabs or arches shall be core drilled unless
otherwise approved. No structural members shall be cut without the approval of the Engineer and
all such cutting shall be done in a manner directed by him. No holes may be drilled in beams or
other structural members without obtaining prior approval. All work shall be performed by
mechanics skilled in this type of work.

CORING:
Coring shall be performed with an approved non-impact rotary tool with diamond core drills.
Size of holes shall be suitable for pipe, conduit, sleeves, equipment or mechanical seals to be
installed.
If holes are cored through floor slabs they shall be drilled from below.

All equipment shall conform to OSHA standards and specifications pertaining to plugs, noise
and fume pollution, wiring and maintenance.

Provide protection for existing equipment, utilities and critical areas against water or other damage
caused by drilling operation.

Slurry or tailings resulting from coring operations shall be vacuumed or otherwise removed from the
area following drilling.

CUTTING:

Cutting shall be performed with a concrete wall saw and diamond saw blades of proper size.

2019 Sewer Replacement Project Cutting, Coring and Patching
Nashua, NH 01330-2

B. Provide for control of slurry generated by sawing operation on both sides of wall.

C. When cutting a reinforced concrete wall, the cutting shall be done so as not to damage bond between
the concrete and reinforcing steel left in the structure. Cut shall be made so that steel neither
protrudes nor is recessed from the face of the cut.

D. Adequate bracing of area to be cut shall be installed prior to start of cutting. Check area during
sawing operations for partial cracking and provide additional bracing as required to prevent a
partial release of cut area during sawing operations.

E. Provide equipment of adequate size to remove cut panel.

3.04 PATCHING:

Rough patching shall be such as to bring the cut or cored area flush with existing
construction unless otherwise shown. Finish patching shall match existing surfaces as

approved.
END OF SECTION

2019 Sewer Replacement Project Cutting, Coring and Patching
Nashua, NH 01330-3

SECTION 02085

POLYVINYL CHLORIDE GRAVITY PIPE AND FITTINGS

PART 1 -GENERAL

1.01 WORK INCLUDED:
This section covers the furnishing and installation of Polyvinyl Chloride (PVC) pipe and
fittings for sewer mains, sewer service connections and drain laterals to catch basins, as
indicated on the drawings and as specified herein.

RELATED WORK:

Section 01330, SUBMITTALS

Section 02300, EARTHWORK

Section 02252, SUPPORT OF EXCAVATION

vo wp > 8

Section 02518, TRACER TAPE

E. Section 02631, PRECAST MANHOLES AND CATCH BASINS
1.03 REFERENCES:
A. The following standards form a part of these specifications as referenced:
American Society for Testing and Materials (ASTM)

ASTM — D2321 Recommended Practice for Underground Installation of Flexible
Thermoplastic Sewer Pipe

ASTM _D3034 Specification for Type PSM Polyvinyl Chloride (PVC) Sewer
Pipe
and Fittings

ASTM = _D3212_—_s Specification for Joints for Drain and Sewer Plastic Pipes Using
Flexible Elastomeric Seals

ASTM _ F679 Specification for Polyvinyl Chloride (PVC) Large Diameter
Plastic Gravity Sewer Pipe and Fittings (18"- 27")

The National Association of Sewer Service Companies (NASSCO) Recommended
Specifications for Sewer Collection System Rehabilitation (Current Edition).

2019 Sewer Replacement Project Polyvinyl Chloride Gravity Pipe and Fittings
Nashua, NH 02085-1

B. | New Hampshire Code of Administrative Rules, Env-Wq 704, Design of Sewerage.

1.04 SUBMITTALS:
In accordance with requirements of the General Specifications submit six (6) sets of

manufacturer's literature of the materials of this section shall be submitted to the Engineer for
review.

PART 2 - PRODUCTS

2.01 MATERIALS:

A. PVC NON-PRESSURE SEWER PIPE:

PVC non-pressure sewer pipe 4-inches through 15-inches diameter (SDR-35) shall be solid
wall and conform to ASTM - D3034. PVC non-pressure pipe 18-inches through 60-inches
diameter (T-1 & T-2) shall be solid wall and conform to ASTM F679. All pipe shall be as
specified and meet the following requirements.

1. PVC non-pressure sewer pipe shall be furnished in standard lengths.

2. One pipe bell consisting of an integral wall section with a solid cross section rubber ring, factory
assembled, shall be furnished with each standard, random and short length of pipe. Rubber rings
shall be provided to the requirements of ASTM D3212.

3. The rubber ring shall be retained within the bell of the pipe by a precision formed groove
or recess designed to resist fish-mouthing or creeping during assembly of joints.

4. Spigot pipe ends shall be supplied with bevels from the manufacturer to ensure proper insertion.
Each spigot end shall have an "assembly stripe" imprinted thereon to which the bell end of the
mated pipe will extend upon proper jointing of the two pipes.

5. PVC fittings shall be provided with bell and/or spigot configurations with rubber gasketed joints
compatible with that of the pipe. Bend fittings with spigot ends shorter than the pipe recess bells
will not be allowed. The shorter spigot end would not allow proper seating of the spigot in the
mating bell and would permit undesired contact between the mating bell and the outside of
the fitting bell.

6. A\ll pipe delivered to the job site shall be accompanied by independent testing laboratory
reports certifying that the pipe and fittings conform to the above-mentioned specifications. In
addition, the pipe shall be subject to thorough inspection and tests, the right being

reserved for the Engineer to apply such of the tests specified as he may from time to time
deem necessary.

7. All cutting of pipe shall be done with a machine suitable for cutting PVC pipe. Cut ends shall be
beveled when recommended by the pipe manufacturer.

8. All couplings for connecting pipes of various sizes shall be FERNCO STRONGBACK.

2019 Sewer Replacement Project Polyvinyl Chloride Gravity Pipe and Fittings
Nashua, NH 02085-2

flexible repair couplings, or approved equal, of the appropriate size to fit the external diameter
of each pipe.

SEWER AND DRAIN PIPE BEDDING AND SAND BLANKET:
Sewer pipe bedding and sand blanket shall be as specified in Section 02300 EARTHWORK.
DUCTILE IRON PIPE:

Ductile iron pipe shall be used at sewer/water line crossings and conform to AWWA
C151/A21.50 & 51, Class 52.

PART 3 - EXECUTION

3.01

A.

INSTALLATION:

Except as modified herein, installation of the PVC pipe shall be in accordance with ASTM
D2321.

Each pipe length shall be inspected before being laid to verify that it is not cracked. Pipe shall be
laid to conform to the lines and grades indicated on the drawings or given by the Engineer. Each
pipe shall be so laid as to form a close joint with the next adjoining pipe and bring the inverts
continuously to the required grade.

The pipe shall be bedded and covered with sand blanket as specified under Section 02300,
EARTHWORK, and as detailed on the project plans.

The pipe shall not be driven down to grade by striking it with a shovel handle, timber, rammer, or
other unyielding object. When each pipe has been properly bedded, enough of the backfill
material shall be placed and compacted between the pipe and the sides of the trench to hold the
pipe in correct alignment.

Before a joint is made, the pipe shall be checked to assure that a close joint with the next
adjoining pipe has been maintained and that inverts are matched and conform to the required line

and grade.

For pipe placed on crushed stone, immediately after the joint is made, the jointing area shall be
filled with suitable materials so placed and compacted that the ends of either pipe will not settle
under backfill load.

No pipe or fitting shall be permanently supported on saddles, blocking, or stones.

Branches and fittings shall be laid by the Contractor as indicated on the drawings, and/or as
directed by the Engineer. Open ends of pipe and branches shall be closed with PVC caps secured
in place with pre-molded gasket joints or as directed by the Engineer.

All pipe joints shall be made as nearly watertight as practicable. There shall be no visible
leakage at the joints and there shall be no sand, silt, clay, or soil of any description entering the

2019 Sewer Replacement Project Polyvinyl Chloride Gravity Pipe and Fittings
Nashua, NH 02085-3