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8. Finish:

Mix resin and hardener and wet out cloth in accordance with manufactures
recommendations.

Place the wetted cloth around the deflated packer and tie into place with plastic strips.
Winch inflatable packer and repair material into conduit and accurately position.
Inflate the packer, which breaks the ties, and forms the resin impregnated cloth

to the inside of the pipe, excess resin being forced into cracks and open joints.

If steam is used to accelerate cure, start injecting steam and monitor temperature

and pressure. Cure for approximately one hour.

When the resin has cured, the steam is turned off and cold water is injected into

the packer to cool the pipe and repair sleeve. The repair be cooled to 60 F

When the repair has fully cooled, release inflation pressure and pump the water out
of the inflatable packer or expel it using compressed air, or vacuum.

Withdraw inflatable packer and inspect the finished repair using the CCTV.
Remove all equipment from the conduit and pack up.

The finished pipe within a pipe repair shall be as smooth as commercially feasible, with
a smooth transition from the host pipe to the repair pipe and either end. The repair shall
overlap past the defect by at least one foot onto sound pipe at either end.

9. Cleanup:
After all work has been completed, the Contractor will clean up the project area.

Excess material and debris will be disposed of by the Contractor.

10. Final Acceptance:

In addition to any specific acceptance criteria specified in the contract, the following
standards should be met:

a.

Finish:
The finished pipe should be continuous over the length of a defect plus two feet
and be free as practical from significant defects.

Defects:

Any defects which will affect (in the foreseeable future or warranty period) the
integrity of the installed pipe should be repaired at the Contractor's expense, in a
manner mutually agreed upon by the Owner and the Contractor.

Service Connections:
Reinstatement of all building sewer connections must be done neatly and smoothly.

11. Warranty:

Unless otherwise agreed upon prior to bid, the Contractor shall warrant the liner
installation for a period of one year. During the warranty period, any defect which affects the
integrity or strength of the repair shall be repaired at the Contractor's expense in a manner
mutually agreed upon by the Owner and the Contractor.

02650A - 3

12. Measurements for Payments:

Payment shall be based upon an accepted bid price agreed upon prior to the work being
performed, and each repair shall be treated as a separate bid, unless other agreements are
mutually approved prior to commencement of work.

END OF SECTION

02650A - 4

SECTION 02745

PAVING AND RECLAMATION

PART 1 - GENERAL

1.01

1.02

1.03

WORK INCLUDED:

Furnish all labor, equipment and materials required to install bituminous concrete
pavement courses, including sidewalks, driveways, temporary and permanent trench paving
and restoration of pavement markings as shown on the Drawings and as specified herein .

RELATED WORK:

Section 01562, DUST CONTROL

Section 02300, EARTHWORK

Section 02631, PRECAST MANHOLES AND CATCH BASINS
SYSTEM DESCRIPTION:

GENERAL

The type of pavement systems to be utilized on this project shall be TYPE 1.
TEMPORARY TRENCH PAVEMENT, and TYPE 2 RECLAMATION WITH CURB-
TO-CURB BASE COURSE AND OVERLAY.

TYPE 1. TEMPORARY TRENCH PAVEMENT

All trenched areas shall be paved with temporary bituminous pavement, 2-inches thick, as
soon as practicable after installation of indrvidual pipeline segments, but no trench shall be
without temporary pavement longer than seven (7) calendar days.

TYPE 2. RECLAMATION WITH CURB-TO-CURB BASE COURSE AND OVERLAY

The work to be done hereunder shall include but not be limited to the reclaiming of existing
paved roadway surfaces and the placement of new bituminous to the relevant provisions
under Section 306 of the Standard Specification of NHDOT and as specified in the Contract
Documents.

On specified streets, areas of existing pavement shall be pulverized together with the
underlying base course. The pulverizing operation shall blend the existing pavement and
base course into a homogeneous mass, using the bitumen contained in the pavement as a
stabilizer. The Contractor shall be responsible for reclaiming all existing pavement to a
minimum depth of 13 inches (+/-) or as directed by the Engineer. The quantity of material
mixed with the existing pavement shall be adjusted as necessary to meet the material

02745-1

specification of Section 2.1.1. of the Standard Specifications of the New Hampshire
Department of Transportation.

Prior to scarifying and pulverizing the existing pavement, the Contractor shall locate and
protect existing drainage and utility structures and underground pipes, culverts, conduits
and other appurtenances to a depth appropriate to allow for the 13 inches (+/-) of
reclamation. If the upper section of utilities is removed to facilitate scarifying and
pulverizing the existing pavement, the remaining part of the structure shall be immediately
covered with a steel plate capable of withstanding a 36.5-ton truckload with impact. The
Contractor, at his expense, shall be responsible for removing and storing all frames, grates
and covers from existing or removed catch basins, manholes and water gate covers. The
Contractor shall be held responsible for the protection of the casting. The Contractor, at his
expense, shall replace any frames, grates or covers, damaged in any manner during the
process of the Construction with new castings. The Contractor shall make adjustment of
the structures to line and/or grade or both line and grade.

The Contractor shall reclaim only that area of pavement that can be processed and
compacted by the end of the same working day, at which time it must be open to traffic,
with the Engineer's approval. One-way traffic will be allowed only during working hours
with proper traffic controls. Two-way traffic shall be maintained at all other times.
Suttable ramping shall be in place at the beginning and end of each work zone to allow for
smooth and safe travel. This shall be considered incidental to the work for this item. The
required density shall be maintained until the bituminous concrete pavement has been
placed. Any imperfections discovered prior to the placement of bituminous concrete shall
be repaired, as directed by the Engineer, at no additional compensation. All unsuitable
material and/or excess reclatmed material shall be properly disposed of outside the
project limits at no additional cost to the Owner at the Nashua Landfill.

The Contractor shall compact nine inches (9”’) of reclaimed subbase to not less then
95 percent of the maximum dry density of the material as determined by AASHTO Standard
Method of test T-99, Method C at optimum moisture content without additional cost to the

Owner.

Type 2 requirements: The Contractor shall coordinate with the Owner and Engineer for
final grading with respect to roadway elevations and drainage. The Contractor shall
remove and relocate or dispose of material as needed to maintain the existing curb reveal.
Paved roadway surfaces shall be restored to existing grades where applicable with the
placement of 4 inches of new bituminous concrete, placed in three layers; 1 inch of Top
Course over 3 inches of Base Course (two equal lifts). The Contractor 1s responsible for
placing all new bituminous concrete in a manner as to follow the existing road profile.

All existing driveways shall be sawcut at the direction of the Engineer and all bituminous
concrete shall be excavated up to the face of the sawcut. The Contractor 1s responsible for
placing all new bituminous concrete in a manner as to meet existing driveway grades.

The Contractor shall be responsible for maintaining proper drainage of street runoff during

the Construction.

02745-2

NOTICE OF AWARD

Dated
TO: Insituform Technologies, LLC
ADDRESS: 17988 Edison Avenue Chesterfield MO 63005
Street Address City/Town State ZIP
Project Number N/A Owner Contract Number IFBO779-071422
Project : Siphon Rehabilitation Contract For: Siphon Rehabilitation

You are notified that your bid dated for the above contract has been considered. You are the apparent successful bidder
and have been awarded a contract for:

(Indicate total Work, alternates or sections of Work awarded)

The Contract Price of your contract is One Million One Hundred Seventy-Three Thousand dollars ($1,173,000)

1 copy of the proposed Contract Documents (except Drawings) accompany this Notice of Award. The same number of
sets of the drawings will be delivered separately or otherwise made available to you immediately.

You must comply with the following conditions precedent within 10 calendar days of receiving this Notice of Award.

1. You must deliver to the OWNER all of the fully executed counterparts of the Agreement including all the Contract
Documents. This includes the sets of drawings. Each of the Contract Documents must bear your signature on (the
cover) (every) page.

2. You must deliver with the executed Agreement the Contract Security (Bonds) as specified in the Information for
Bidders and General Conditions.

3. (List all other conditions of precedent.)

Failure to comply with these conditions within the time specified will entitle OWNER to consider your bid abandoned, to
annul this Notice of Award and to declare your Bid Security forfeited.

Within 10 calendar days after receipt of acceptable performance BOND, payment BOND and agreement signed by the
party to whom the Agreement was awarded, the OWNER will return to you one fully signed counterpart of the
Agreement with the Contract Documents attached.

(OWNER)

(Authorized Signature)

(Title)

Page 1 of 15

Under this pavement type, the Contractor shall be responsible for removing and resetting all
curbing that is disturbed during construction to existing grades at no additional cost to the
Owner. All bituminous concrete berms disturbed during construction operations shall be
replaced at no additional cost to the Owner and shall be set to existing grades and shall
maintain proper drainage.

Under this pavement type, all signs and sign posts disturbed during construction operations
shall be removed and reset. Any signs that have been damaged shall be replaced and set at
existing grades and locations at no additional cost to the owner.

No trees within the project limits shall be under cut or destroyed. The Contractor is
responsible for protecting all trees and their root systems from all adjacent construction
operations. Any trees disturbed or destroyed shall be replaced with no additional
compensation. All surface areas outside the paved roadway surface area that are disturbed
during construction shall be repaired with 4 inches of loam with seed at no additional cost to
the Owner.

1.04 REFERENCES

The following standards form a part of these specifications and indicate the minimum
standards required:

American Society for Testing and Materials (ASTM):

ASTM D1557 Test for Moisture-Density Relations of Soils and Soil-Agegregate
Mixtures Using 10 Pound Rammer and 18-Inch Drop

State of New Hampshire Department of Transportation (NHDOT) Standard
Specifications for Road and Bridge Construction, latest edition:

Section 304 Gravel Base Course
Section 401 Bituminous Concrete Pavement - Table 2 Composition of Mixes
Section 632 Reflectorized Pavement Markings

Prime and Tack Coats - shall conform to the NHDOT Standards

Federal Specifications:
SS-S-164 Sealing Compound, Hot Poured Type, for Jomts in Concrete
SS-S-1401C Sealants, Joint, Non-Jet-Fuel-Resistant, Hot Applied, for Portland

Cement and Asphalt Concrete Pavement

02745-3

1.05

SUBMITTALS: IN ACCORDANCE WITH REQUIREMENTS OF GENERAL
SPECIFICATIONS, SUBMIT THE FOLLOWING:

A. Six sets of complete job mix formula shall be submitted to the Engineer at least two
weeks before any of the work of this section is to begin.

B. Delivery slips shall be furnished with each load of mix delivered to the project.
Information shall include:

Vehicle identification.

Date.

Project.

Identification of material.

Gross, tare and net weights.

Signed by the bituminous concrete producer.
Stamped by a licensed public weighmaster.

NAN WN

PART2-PRODUCTS

2.01 CRUSHED GRAVEL SUBBASE:

A.

2.02

2.03

Crushed gravel subbase shall consist of inert material that is hard durable stone and coarse
sand, free from loam and clay, surface coatings and deleterious materials.

Gradation requirements for gravel subbase shall be as specified in NHDOT Standard
Specifications Section 02300, EARTHWORK for Crushed Gravel.

BITUMINOUS CONCRETE PAVEMENT:

Bituminous concrete pavements shall consist of Class I Bituminous Concrete, Type 1-1.
Bituminous concrete mixtures shall be within the composition limits of base courses, binder
courses, top courses and surface treatment, in accordance with NHDOT Standard

Specifications Section 401, that conform to Table 2.

Unless authorized by the Engineer, no Job-Mix Formula will be approved which specifies:
Less than 4% passing No. 200 for Top Course.

Less than 6% bitumen for Top Course.

The joint sealant shall be a hot poured rubberized emulsified asphalt sealant meeting the
requirements of Federal Specifications SS-S-1401 or SS-S-164.

The tack coat shall be an asphalt emulsion, RS-1, CRS-1, HFMS-1 CSS-1 if required.
SEAL COAT:

Seal coats shall be within the composition limits for protective seal coat emulsion in
accordance with NHDOT Standards.

02745-4

B. — Silica sand when blended with seal coat emulsion shall be No. 30 silica sand.

2.04 PAVEMENT MARKINGS:
A. Pavement markings shall conform to the requirements of NHDOT Standard Specifications
632

B. — The mixture of the marking material shall be within the composition limits for reflectorized
pavement markings as described in the NHDOT Standard Specifications as follows:

Thermoplastic reflectorized pavement markings - 632.

C. Application of the glass beads to be used as reflector material on the striping shall conform to
Section 632 of the NHDOT Standard Specifications.

PART3-EXECUTION
3.01 GENERAL:

Paving courses required for the project shall be as shown on the drawings and as specified
herein. Pavement thicknesses specified are measured in compacted inches. If a pavement
course thickness exceeds 2-1/2 compacted inches, the course shall be installed in multiple
lifts with each lift not exceeding 2-1/2 compacted inches in thickness.

3.02 GRAVEL SUBBASE:

A. The crushed gravel subbase to be placed under pavement shall consist of 12-inches of crushed
gravel evenly spread and thoroughly compacted.

B. _ The gravel shall be spread in layers not more than 4-inches thick, compacted measure. All
layers shall be compacted to not less than 95 percent of the maximum dry density of the
material as determined by ASTM D1557 Method C at optimum moisture content.

3.03 TEMPORARY BITUMINOUS PAVEMENT:

A. — Where specified and directed by the Engineer and after placement of the Crushed gravel
sub-base, the Contractor shall place temporary bituminous pavement above the trench,
between the edges of the existing pavement. It shall consist of Class I Bituminous Concrete
Pavement, Type 1-1, 2-inches thick, in accordance with NHDOT Standard Specifications
Section 401.

B. The temporary pavement shall be repaired as necessary to maintain the surface of the
pavement until replaced by permanent pavement. When so directed by the Engineer, the
Contractor shall remove the temporary pavement and install or regrade the sub-base for
installation of permanent pavement.

3.04 PERMANENT BITUMINOUS PAVEMENT:

A. The bituminous paving mixture, equipment, methods of mixing and placing, and the
precautions to be observed as to weather, condition of base, etc., shall be in accordance
with NHDOT Standard Specifications Section 401.

02745-5

B. BASE COURSE AND BINDER COURSE PAVEMENT:

1. Immediately prior to installing the base and/or binder course, the trimmed edges shall
be made stable and unyielding, free of loose or broken pieces and all edges shall be
thoroughly broomed clean. Contact surfaces of trench sides, curbings, manholes,
catch basins, or other appurtenant structures in the pavement shall be painted
thoroughly with a uniform coating of asphalt emulsion (tack coat), just before any
mixture 1s placed against them.

2. The binder course shall be repaired as necessary to maintain the surface of the
pavement until placement of the permanent overlay. If required, the Contractor shall
place a leveling course before placing the permanent overlay.

C. TOP COURSE OR SURFACE TREATMENT PAVEMENT (PERMANENT OVERLAY):

3.05

A.

1. | Top course or surface treatment shall be placed over the full width as shown on
the drawings or as specified.

2. Prior to placement of the top course or surface treatment, the entire surface over
which the top course or surface treatment is to be placed shall be broom cleaned and
tack coated.

3. Top course or surface treatment pavement placed over trenches may be feathered to
meet existing paved surfaces, if approved by the Engineer.

4. Prior to placing full width top course or surface treatment pavements, keyways shall
be cut in all intersecting streets.

COLD PLANING

The Contractor shall remove bituminous concrete pavement by use of an approved "cold
planer" equipment to a depth sufficient to apply an overlay of 2 inches of bituminous
concrete pavement. Existing pavement shall be removed to a depth of 2 inches at the road
centerline and 3 inches at the curb line.

The equipment shall be capable of accurately and automatically establishing profile grades
along each edge of the machine by referencing from the existing pavement by means of a
ski or matching shoe from an independent grade control and shall have an automatic
system for controlling cross slope at a given rate.

The machine shall be equipped with an integral loading means to immediately remove
material being cut from the surface of the roadway and discharge cuttings into a truck, all in
one operation. All planning machinery shall be equipped with dust-control devices to
prevent any dust produced in the cutting operation from escaping into the air.

The bituminous surfaces being planed and profiled shall be removed to a depth, width,

grade and cross section directed by the Engineer. Loose material resulting from the
operation shall be the property of the Owner unless otherwise directed by the Engineer.

02745-6

E.

The planed surface shall provide a smooth riding surface free from severe gouges,
continuous grooves, ridges, oil film and other imperfections of workmanship and shall have a
uniform surface appearance exclusive of broken or cracked underlying pavement.

All existing pavement around castings shall be removed with hand cold planing equipment or
by the use of hand tools if necessary. Any castings damaged or disturbed shall be
removed and replaced as directed by the Engineer, at the Contractor's expense.

3.06 PAVEMENT PLACEMENT:

A.

3.09

A.

Unless otherwise permitted by the Engineer for particular conditions, only machine
methods of placing the pavement shall be used. The equipment for spreading and finishing
shall be mechanical, self-powered pavers, capable of spreading and finishing the mixture
true to line, grade, width and crown. The mixtures shall be placed and compacted only at
such times as to permit proper inspection and checking by the Engineer.

After the paving mixtures have been properly spread, initial and intermediate compaction
shall be obtained by the use of steel wheel rollers having a weight of not less than 240
pounds per inch width of tread.

Final rolling of the top course or surface treatment pavement shall be performed by a steel
wheel roller weighing not less than 285 pounds per inch width of tread at a mix
temperature and time sufficient to allow for final smoothing of the surface and thorough
compaction.

Immediately after placement of top course or surface treatment pavement, all joints
between the existing and new top course or surface treatment pavements shall be sealed
with hot poured rubberized asphalt sealant meeting the requirements of Federal
Specification SS-S-1401 or SS-S-164.

Where there is no backing for the edges of the curb-to-curb pavement, the Contractor shall
provide a gravel transition. The gravel transition shall be installed immediately after the
pavement is placed, shall be feathered and extend a minimum of 18 inches, and shall be
compacted using the same equipment as for pavement compaction. The gravel shall be
uniformly graded material with a maximum size of 3/8 to 1/2 inch.

When directed by the Engineer, the Contractor shall furnish and install additional paving to
provide satisfactory transition for driveways and walkways impacted by a new curb-to-curb
pavement installation. The transition installation will be considered incidental to the
curb-to-curb pavement installation.

RAISING AND ADJUSTING CASTINGS:

In areas of permanent top course paving, existing municipally-owned catch basin and
manhole castings and valve boxes shall be raised to the proper grade where directed by the
Engineer.

Castings owned by private utilities shall be raised by their own forces. The Contractor
shall be responsible for coordinating this work.

02745-7