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ENGINEER or OWNER will observe work for provisional acceptance at the end
of the eight (8) week grass maintenance period, and upon the written request
of CONTRACTOR, which must be received at least ten (10) days before the
anticipated date of observation.

A satisfactory stand will be defined as a section of grass of 10,000 square feet

or larger that has:

1. No bare spots larger than three square feet.

2. No more than ten percent of total area with bare spots larger than one
square foot.

3. No more than fifteen percent of total area with bare spots larger than 6
inches square.

4, The observations by ENGINEER or OWNER will determine whether
maintenance shall continue in any area or manner.

After all necessary corrective work and cleanup has been completed,
ENGINEER or OWNER will acknowledge the provisional acceptance of the
seeded areas. CONTRACTOR's responsibility for maintenance of seeded areas,
or parts of seeded areas shall cease on receipt of provisional acceptance.

3.4 | GUARANTEE PERIOD AND FINAL ACCEPTANCE

A.

All seeded areas shall be guaranteed by CONTRACTOR for not less than one full
year from the time of provisional acceptance.

At the end of the guarantee period, ENGINEER or OWNER will make
observations upon written request submitted by the CONTRACTOR at least ten
days before the anticipated date. Seeded areas not demonstrating satisfactory
stands as outlined above, as determined by ENGINEER or OWNER, shall be
renovated, reseeded, and maintained meeting all requirements as specified
herein.

After all necessary corrective work has been completed, ENGINEER or OWNER
shall acknowledge in writing the final acceptance of the seeded areas.

[END OF SECTION 02830]

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File No. 3066.096 Topsoil, Hydroseeding, and Turf Establishment 02830 - 4 of 4 December 2017

14.

attorney's fees, costs and expenses of any kind or nature in any manner caused, occasioned, or
contributed to in whole or in part by reason of any negligent act, omission, or fault or willful
misconduct, whether active or passive, of Professional Engineer or of anyone acting under its
direction or control or on its behalf in connection with or incidental to the performance of this
contract. Professional Engineer's indemnity and hold harmless obligations, or portions thereof,
shall not apply to liability caused by the sole negligence or willful misconduct of the party
indemnified or held harmless.

. FISCAL CONTINGENCY All payments under this contract are contingent upon the availability to the

City of Nashua of the necessary funds. This contract shall terminate and the City of Nashua's
obligations under it shall be extinguished at the end of any fiscal year in which the City of Nashua
fails to appropriate monies for the ensuing fiscal year sufficient for the performance of this contract.

Nothing in this contract shall be construed to provide Professional Engineer with a right of payment
over any other entity. Any funds obligated by the City of Nashua under this contract that are not
paid to Professional Engineer shall automatically revert to the City of Nashua’s discretionary
control upon the completion, termination, or cancellation of the agreement. The City of Nashua
shall not have any obligation to re-award or to provide, in any manner, the unexpended funds to
Professional Engineer. Professional Engineer shall have no claim of any sort to the unexpended
funds.

COMPENSATION Review by the City of Nashua of Professional Engineer's submitted monthly
invoice forms and progress reports for payment will be promptly accomplished by the City of
Nashua. If there is insufficient information, the City of Nashua may require Professional Engineer
to submit additional information. Unless the City of Nashua, in its sole discretion, decides
otherwise, the City of Nashua shall pay Professional Engineer in full within 30 days of approval
of the submitted monthly invoice forms and progress reports.

. COMPLIANCE WITH APPLICABLE LAWS Professional Engineer, at all times, shall fully and

completely comply with all applicable local, state and federal laws, statutes, regulations,
ordinances, orders, or requirements of any sort in carrying out the obligations of this contract,
including, but not limited to, all federal, state, and local accounting procedures and requirements,
all immigration and naturalization laws, and the Americans With Disabilities Act. Professional
Engineer shalt, throughout the period services are to be performed under this contract, monitor for
any changes to the applicable laws, statutes, regulations, ordinances, orders, or requirements, shall
promptly notify the City of Nashua in writing of any changes to the same relating to or affecting
this contract, and shall submit detailed documentation of any effect of the change in terms of both
time and cost of performing the contract.

. NONDISCRIMINATION [f applicable or required under any federal or state law, statute, regulation,

order, or other requirement, Professional Engineer agrees to the following terms. Professional
Engineer will not discriminate against any employee or applicant for employment because of
physical or mental handicap in regard to any position for which the employee or applicant for
employment is qualified. Professional Engineer agrees to take affirmative action to employ,
advance in employment, or to otherwise treat qualified, handicapped individuals without
discrimination based upon physical or mental handicap in all employment practices, including but
not limited to the following: employment, upgrading, demotion, transfer, recruitment, advertising,
layoff, termination, rates of pay, or other forms of compensation and selection for training,
including apprenticeship.

Without limitation of the foregoing, Professional Engineer's attention is directed to “Title 41”Public
Contracts and Property Management” C.F.R. Subtitle B “Other Provisions Relating to Public
Contracts” Section 60 “Office of Federal Contract Compliance Programs, Equal Employment,
Department of Labor” which, by this reference, is incorporated in this contract.

GC 7 of 11

SECTION 02950

CLEANUP AND SITE RESTORATION

PART 1 - GENERAL

1.1

SCOPE OF WORK

A.

Furnish all labor, materials, equipment and incidentals necessary to complete
the work under this Section including operations which cannot be specified in
detail as separate items, but can be sufficiently described as to the kind and
extent of Work involved.

PART 2 - PRODUCTS

Not used.

PART 3 - EXECUTION

3.1

3.2

CLEANUP

A.

During the course of the work, CONTRACTOR shall keep the site of his
operations in as clean and neat a condition as is possible. Lumber, equipment,
temporary structures, and other refuse remaining from the construction
operations shall be removed from the site. CONTRACTOR shall leave the entire
site in a neat and orderly condition.

B. It shall be CONTRACTOR's responsibility to dispose of all excess material and
residue resulting from construction operations. Excess materials consisting of
soil, rock or boulders shall be disposed of by CONTRACTOR in on-site areas
designated by OWNER.

C. Upon establishment of vegetation, CONTRACTOR shall remove all silt
fence/erosion control structures under the direction of OWNER.

INCIDENTAL WORK

A. CONTRACTOR shall do all incidental Work not otherwise specified but

obviously necessary for the proper completion of the Contract in accordance
with the Drawings and Specifications.

{END OF SECTION 02950]

P:\3000s\3066.09\Source Files\Type II App\Specifications\Division 2 Specifications\02950 Cleanup and Site Restoration.docx

File No. 3066.09 Cleanup and Site Restoration 02950 - 1 of 1 December 2017

CONTENTS

DIVISION 3 —- CONCRETE

Section 03300 - Cast-in-Place Concrete
Section 03310 - Concrete Coatings
Section 03400 - Precast Concrete Structures

SANBORN i HEAD

SECTION 03300
CAST-IN-PLACE CONCRETE
PART 1 - GENERAL
1.1 SCOPE OF WORK

A. All cast-in-place concrete used in the installation of footings and foundation
walls.

B. All cast-in-place concrete used in the construction of floor slabs and sideslope
riser building walls.

D. Reinforcing steel, formwork, and concrete accessories required for the
completion of the work.

E. Required material or equipment to be installed during concrete construction.
1.2 QUALITY ASSURANCE
A. Applicable Codes, Standards and Specifications.
1. American Society for Testing and Materials (ASTM)
2. American Concrete Institute (ACI)
B. Tests
1. Tests for all materials shall be current within the past 12 months prior to use
in this work.
2. Make test results and data available to ENGINEER upon request.
1.3. SUBMITTALS

A. Name and location of concrete suppliers.

B. Concrete mix design indicating amount of all ingredients for each class of
concrete to be used in the work.

C. Product data for pipe boots, floor sump, and grating.

D. Field and compression test results on samples collected during concrete
placement.

PART 2 - PRODUCTS
2.1 CEMENT

A. Portland cement shall conform to ASTM C50, Type II.

File No. 3066.09 Cast-in-Place Concrete 03300 -1 of 6 December 2017

2.2 FINE AND COARSE AGGREGATES
A. Comply in all respects to ASTM C33.

B. Maximum size of coarse aggregates:
1. General concrete - 1% inches.
2. Floor slabs and walls - 34 inch.

C. Coarse aggregate for concrete used for floor slabs shall be crushed rock or
screened, washed gravel, and shall be clean, hard and free of clay, organic and
other deleterious matter.

D. Fine aggregate shall be sand which is washed and free of clay, organic, and other
deleterious matter.

2.3. WATER
A. Use public potable water supply.

2.4 ADMIXTURES
A. Water-reducing - Conform to ASTM C494, Type A.
B. Air-entraining - Conform to ASTM C260.

2.5 REINFORCING STEEL

A. Reinforcing steel bars shall be deformed new billet steel conforming to ASTM
A615, Grade 60. Wire fabric shall be cold drawn steel conforming to ASTM A185.

B. Wall Anchor Bolts
1. Zinc coated steel by the hot-dip process after fabrication to a minimum of
1.25 ounces of zinc per square foot of surface when tested in accordance with
ASTM A90.
2. Rigid steel anchors not less than %2-inch diameter by 24 inches long with one
end bent not less than 2 inches, and the long leg threaded at least 6 inches.

2.6 EXPANSION JOINT MATERIAL

A. Expansion joint material shall be resilient, waterproof, non-extruding type
premolded closed cell polyethylene foam, ¥%-inch minimum thickness, and of the
width required for full depth joints. The expansion joint material shall include a
strip-off removable edge.

File No. 3066.09 Cast-in-Place Concrete 03300 - 2 of 6 December 2017

2.7

2.8

2.9

2.10

2.11

MEMBRANE CURING COMPOUND

A. Membrane curing compound shall be pigmented and conform to the

requirements of ASTM C309.

GROUT

A.

All grout shall be non-shrink, non-metallic, non-gas forming, pre-blended and
ready for use requiring only the addition of water.

CONCRETE MIX DESIGN

A.

Mix design shall be established by the concrete supplier based on a proven
strength record for concrete made with similar ingredients and conform to ACI
211, except as specified herein, using approved materials.

All concrete shall have a compressive strength of at least 4,000 pounds per
square inch at 28 days unless otherwise noted.

Maximum Slump
1. General - 4 inches
2. Floors, and walls - 3 inches

Except where otherwise specified, all concrete exposed to the weather shall be
air-entrained in the range of 5 percent to 7 percent.

FLOOR SUMP

A.

Sideslope riser building floor sump(s) shall be cast-in-place monolithically with
the floor slab. The sump top opening shall be as indicated on the Drawings.

Provide a minimum 1-inch wide lip all around the sump of sufficient depth to
support grating flush with the floor surface. Grating shall be structural fiberglass
floor grating.

SUMP GRATING

A.

The sump grating shall be designed for a normal live load of 100 pounds per
square foot. Maximum deflection under a 100 pounds per square foot load shall
not exceed 14-inch or 1/250th of the span, whichever is less.

Individual grating panels shall not exceed a total weight of 100 pounds unless
otherwise shown or approved.

The walking surface of the grating shall have a slip resistant finish texture.

File No. 3066.09 Cast-in-Place Concrete 03300 - 3 of 6 December 2017

D.

The grating must be removable to allow access to sump and sump pump (if
installed) for cleanout and maintenance operations.

2.12 GRATING SUPPORTS

A.

B.

Grating shall be supported on all sides by channel or angle members of the same
material as the grating. Supports shall be securely anchored to the sides of the
floor slab. All anchor hardware shall be stainless steel.

Grating shall be secured to their supports by removable anchors.

PART 3 - EXECUTION

3.1 BATCHING AND MIXING

A.

B.

Batching
1. Conform to ACI304.
2. Use only approved materials.

Mixing and Delivering - Conform to ASTM C94.

3.2 PLACING CONCRETE

A.

B.

G.

H.

Conform to ACI 304.
Forms shall be substantially free from surface defects and sufficiently tight to
prevent leakage of mortar. They shall be properly braced and tied so as to

maintain position and shape during and after placing of concrete.

CONTRACTOR shall furnish and place reinforcing steel and wire, pipe boots,
expansion joints, sump, grating shelf, etc. as shown on the Drawings.

All concrete shall be thoroughly consolidated by use of vibrators.

No concrete shall be deposited under water without written permission of
ENGINEER, and then only in accordance with proper tremie techniques.

Cold Weather Concreting - Conform to ACI 306.
Hot Weather Concreting - Conform to ACI 305.

Sideslope riser building floor and floor sump as indicated on the Drawings.

3.3. FINISHING

A.

All formed concrete surfaces to be exposed shall be given a rubbed finish.

File No. 3066.09 Cast-in-Place Concrete 03300 - 4 of 6 December 2017

3.4

3.5

3.6

3.7

3.8

B.

C.

Floors, and similar surfaces shall be given a float finish.

Floor slabs shall be hand-floated and given a smooth finish.

CURING

A.

Concrete shall be maintained in a moist condition for seven (7) days using
methods that will insure complete and continuous saturation.

Floor slabs may be cured by the use of membrane curing compound applied in
accordance with the manufacturer's directions.

EXPANSION JOINTS

A.

Provide where indicated around floor slab. Fill joints with a permanently
flexible preformed filler material and a urethane sealant.

FORMS

A.

Construct to the shape, lines, and dimensions of members indicated and make
sufficiently rigid to prevent deflections which may result in cracking or other
damage to supported masonry. Do not remove until members have cured.

Remove forms and form ties and clear all loose material from the surface of the
concrete. Remove surface lumps, and fill voids on faces of concrete surfaces that
are to receive asphalt dampproofing or paint, are to be in contact with expansion
joint material, or will be visible on the interior of the sideslope riser building.

NON-SHRINK GROUTING

A.

For openings that are left in new concrete or where made in existing concrete for
the insertion of wall castings, pipes or other fixtures, the space around these
items shall be made watertight by completely filling with a non-shrink grout.

All work shall be done in strict accordance with the material manufacturer's
recommendations.

BONDING AND ANCHORING

A. Structurally anchor walls to each other. Anchor sills to concrete wall with

threaded anchor bolts embedded in the concrete. Provide washers and nuts to
anchor sills to concrete wall. Maximum spacing of anchors shall be 6 feet.

File No. 3066.09 Cast-in-Place Concrete 03300 - 5 of 6 December 2017

3.9 PROTECTION OF WORK
A. New concrete shall be protected by barricades during curing to prevent damage
by vehicular or pedestrian traffic. Damaged concrete shall be repaired or
replaced at CONTRACTOR’s expense.
3.10 QUALITY CONTROL
A. CONTRACTOR shall be solely responsible for the quality control of all concrete
and shall retain an independent testing laboratory to conduct testing of the
concrete for slump, air content and compression.
B. Concrete which does not meet the requirements of these specifications may be
rejected by ENGINEER, and shall be removed and replaced at CONTRACTOR’s
expense.

3.11 SIDESLOPE RISER PIPE PENETRATIONS

A. Neatly fill annular space between concrete wall and sideslope riser pipes with
non-shrink grout.

3.12 CLEANING

A. During cleaning operations, protect work which may be damaged, stained, or
discolored.

[END OF SECTION 03300]

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File No. 3066.09 Cast-in-Place Concrete 03300 - 6 of 6 December 2017