6204_UwharrieMSWLF_Cell14B_UnderdrainPipingPlan_Comment_Response_DIN27540_20170321

Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

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SECTION 02220 TRENCHING, BACKFILLING AND COMPACTION
PART 1 GENERAL
1.1 DESCRIPTION
A. The work under this Section consists of furnishing all labor, equipment and materials
and performing all operations in connection with the trench excavation, backfill and
compaction required to install the site utilities, including all pipelines, drains, sewers,
electrical conduits and duct banks as shown on the Drawings and as specified.
B. Excavations shall include, but not be limited to the removal of any trees, stumps, brush,
debris or other obstacles which remain after the clearing and grubbing operations,
and/or which may obstruct the work. Excavation shall also include the digging up and
removal (clean up) of all earth, rock or other materials to install the utility and
appurtenances in conformance with the lines and grades as shown on the Drawings and
as specified.
C. Backfill shall include the refilling and compacting of the fill in the trenches and
excavations up to the surrounding ground surface or grade as shown on the Drawings
and as specified.
1.2 RELATED WORK
1. Section 01400 Quality Control
2. Section 01560 Erosion and Sediment Control
3. Section 02210 Grading
4. Section 02747 Leachate Collection System
5. Section 02930 Grassing
1.3 SUBMITTALS
A. A minimum of two (2) copies of all test results shall be submitted to the ENGINEER,
Article 1.4, Quality Assurance, A.
B. Soils Tests, Article 1.4 Quality Assurance, D., 2 and 3 and Article 1.4 Quality Assurance, E.
C. Compaction Testing, Article 3.10 Compaction and Testing, B.

1.4 QUALITY ASSURANCE
A. Tests required by this section shall be performed by a qualified, independent testing
laboratory meeting the requirements of Section 01400 – Quality Control. A minimum of
two (2) copies of all test results will be provided.
Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

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B. Regulatory Requirements:
1. Comply with applicable requirements of federal, state and local laws,
regulations and codes having jurisdiction at project site.
2. North Carolina Department of Transportation Standard Specifications.
C. Reference Standards: Applicable requirements of standards and specifications
referenced herein apply to the work of this Specification Section.
D. Tests for Density, Compaction and Moisture Content:
1. Soil Sampling and Testing Standards:
a. Field compaction testing shall be based on using the maximum dry
density determined by the Standard Proctor Compaction Test in
accordance with ASTM D 698.
b. Maximum dry density for non-cohesive materials shall mean the
maximum index density as determined by ASTM D 4253.
c. Determination of in-place backfill density shall be done in accordance
with ASTM D 1556, ASTM D 2937, or ASTM D 2922.
2. Field Material Density, Compaction and Moisture Content tests for each two
feet of lift; one test for each 5,000 square feet of fill. Tests shall be for small
areas related to the installation of utilities and Trenching, Backfilling and
Compaction.
3. CQA ENGINEER’s duties relative to testing include:
a. Perform sampling and field testing.
b. Coordinating Schedule with laboratory for laboratory testing.
c. Obtaining copies of reports for records and distribution.

E. Trench Material Density Compaction and Moisture Content tests shall be made for each
two feet of lift, one test for each 2,000 feet of pipe installed or more frequently if
ordered by the ENGINEER.
1.5 REFERENCES
A. Perform all trench excavation and backfilling activities in accordance with the
Occupational Safety and Health Act of 1970 (PL 91-596), as amended. The CONTRACTOR
shall pay attention to the Safety and Health Regulations Part 1926, Subpart P
“Excavation, Trenching & Shoring” as described in OSHA publication 2226.
1.6 DEFINITIONS
A. Pipeline Embedment:
Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

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1. Backfill material encasement extending from the full depth of bedding to a
distance of twelve (12") inches above the top of the pipe.
2. Embedment is composed of bedding, initial backfill and foundation.
B. Foundation:
1. The load bearing portion of the embedment which underlines the bedding
material.
2. Normally the excavated trench bottom except where unstable conditions exist
and then alternate methods of foundation stabilization are required.
C. Bedding: Backfill material between a pipe and the foundation on which it rests.
D. Initial Backfill: Backfill placed from the top of the bedding and along the sides of the
pipe to a distance of twelve (12") inches above the top of the pipe.
E. Final Backfill: Backfill placed from a distance of twelve (12") inches above the top of the
pipe to the finished grade.
F. Embankment: Fill material placed above original ground surface to provide cover over a
conduit which is fully or partially exposed.
G. Rock: Where "Rock" is used as the name of an excavated material, it shall mean
boulders or pieces of rock, concrete or masonry measuring one (1) cubic yard or more,
hard shale or solid ledge rock and masonry which, in the opinion of the CQA ENGINEER,
requires for its removal the continuous use of pneumatic tools.
PART 2 PRODUCTS
2.1 BACKFILL MATERIAL
A. The requirements of this Article shall apply to all backfill materials unless otherwise
specified.
B. All material shall be suitable and free from roots, wood, scrap material, and other
vegetable matter and refuse.
C. Acceptable material shall generally be a natural or artificial mixture of soil types
normally found in natural deposits in the project vicinity or material obtained from the
CONTRACTOR's excavations.
D. All material shall be sufficiently dry for compaction and shall not contain excessive
amounts of soft or highly plastic clays.
E. Maximum size of stone shall not exceed four (4) inches.

Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

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2.2 BEDDING MATERIAL
A. Fine granular bedding:
1. Materials for fine granular bedding shall consist of well graded fine to course
sands or gravel meeting the gradation requirements of ASTM C 33 for fine
aggregates.
2. Natural materials or artificial mixtures, consisting largely of a mixture of sand
and clay, found in natural deposits in the project vicinity may be utilized as long
as the material meets the proper proportions and gradation requirements.
3. The material shall generally pass a 3/8" sieve with no more than 10% passing a
No. 100 sieve, and shall be non-plastic.
B. Gravel Bedding:
1. Materials used for gravel bedding shall consist of natural rounded or angular,
graded stone or crushed rock, with little or no fines.
2. Generally, the aggregate size shall range from 1 1/2" to 3/8".
3. ASTM classification shall be No. 57 stone.
2.3 UNSUITABLE MATERIALS
A. General: Any material, containing organic or vegetative matter, muck, roots, and
rubbish shall be considered unsuitable. This determination will be made by the CQA
Engineer.
B. The following, as defined in the United Soils Classification System, shall be considered
the basis for classifying unsuitable material unless specifically noted in other sections of
the specifications:
1. Highly plastic clay soils of the CH and MH descriptions with moisture contents
more than 10% over the standard proctor optimum moisture.
2. Border line soils of the SC-CH description with moisture contents more than 10%
over the standard proctor optimum moisture.
3. Organic soils of the OL and OH description with over 5% organics.
4. Highly organic soils of the PT description.
PART 3 EXECUTION
3.1 SITE PREPARATION
A. Clearing and Care of Surface Materials:
1. Topsoil shall be stockpiled at a suitable location so that it can be replaced.
B. Trees, plants, and existing structures and utilities shall be protected with appropriate
barriers prior to construction.
Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

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3.2 GENERAL TRENCH EXCAVATION
A. The requirements of this Article shall apply to all trench excavation unless otherwise
specified.
B. Trench excavation shall be of such depth to enable proper installation of embedment
materials that will result in construction of the pipeline to the alignment and grade, or
depth of cover, as shown on the Drawings.
1. Over-excavation and replacement of materials with proper bedding material
shall be required where specified by the CQA ENGINEER.
2. If during the course of construction, the trench is inadvertently over-excavated,
that area shall be backfilled with fine granular bedding material, unless gravel
bedding is required where unsuitable materials are encountered in the subgrade
or where specified by the CQA ENGINEER.
C. All such related structures and appurtenances shall be constructed to the alignment,
grade, and position as shown on the Drawings.
D. In all cases where materials are deposited along open excavation they shall be placed so
that in the event of rain, no damage will result to the work or adjacent property.
E. Unstable trench bottom:
1. Where an unstable trench bottom condition is encountered due to the presence
of muck, quicksand, or other unsuitable materials, the unstable soil material
shall be removed to a depth which is sufficient to produce a firm foundation.
2. The unstable soil material shall then be replaced with Class B embedment for
the full depth of unstable material excavation.
3. The depth of unstable soil excavation and bedding replacement will be
dependent upon the severity of the trench bottom soil conditions.
4. Depths of bedding shall be as a minimum those specified for Class B
embedment, contained in Article 3.7, C. of this Section.
5. Alternate foundations shall be used where required as specified in Article 3.8 of
this Section.
F. Regardless of the type of embedment used, all bell holes for bell and spigot pipe shall be
excavated at proper intervals so that the barrel of the pipe will rest for its entire length
upon the bottom of the trench or bedding material.
G. All bedding materials shall achieve the required densities by tamping with suitable tools
and shaped to receive the pipe and support it at the exact elevation and line as shown
on the Drawings.

Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

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H. Wet excavation:
1. Where walls and slopes fail in the excavation area, the CONTRACTOR will use
methods to shore up and protect the work, provided the proposed method and
equipment reviewed by the ENGINEER is in accordance with OSHA subpart B of
OSHA Publication 2226.
2. While using the selected method of construction, the excavation area shall be
protected from damage until all construction work has been completed to the
satisfaction of the CQA ENGINEER.
3. The cost of all temporary construction work, whether necessary or incidental,
including the cost of installing and removing sand bags, coffer dams, sheet
piling, excavating and backfilling, pumping and dewatering, shall be considered
an integral part of the cost of trenching, backfilling and compaction and no
separate payment will be allowed or made.
I. Disposal of materials:
1. Disposal of waste materials and smoothing of disturbed material during
trenching operations shall be performed as the pipe is laid and shall not be
allowed to lag more than 500 feet behind the pipe laying operations.
2. All materials removed by excavation which are suitable for the purpose shall be
used whenever practicable for backfilling pipe trenches, foundations and
footings, and for such other purposes as may be shown on the Drawings or
directed by the CQA ENGINEER.
3. All materials not used for backfilling, foundations, or footings shall be
considered as waste materials and disposed of by the CONTRACTOR in an
approved manner.
4. Waste materials may be deposited in spoil banks at locations as shown on the
Drawings.
5. If no disposal areas are shown on the Drawings, the CONTRACTOR shall provide
at his own expense disposal areas satisfactory to the CQA ENGINEER.
6. Waste materials shall not be left in unsightly piles, but shall be spread in uniform
layers and neatly leveled and shaped.
7. Spoil banks shall be provided with adequate openings to permit surface
drainage of adjacent lands.
8. On completion of any part of the work proper disposal shall be made of all
surplus or unused materials left within the construction limits of such work and
the surface of the work left in a neat and workmanlike condition.
3.3 WATER IN TRENCHES
A. Trenches shall be reasonably free from water while the pipes are being laid.
1. The CONTRACTOR shall remove and dispose of any water (including
stormwater), sewage, or any other liquid which may be found or may
accumulate in the excavations.
Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

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2. Dewatering may be accomplished by pumping, an adequate well point system,
or other means of dewatering approved by the CQA ENGINEER.
B. The CONTRACTOR shall examine the site after excavating, and before proceeding with
the work he shall notify the CQA ENGINEER of any evidence of water rising in such areas.
C. Static water levels shall be drawn down below the bottom of the excavation sufficiently
to allow for placement of bedding and backfill.
1. Under certain conditions, the CQA ENGINEER may permit the CONTRACTOR to
remove the water with the use of trenchside pumps through the use of an
approved bedding.
2. The depth of bedding material will depend upon the amount of water, but care
shall be taken to ensure that the trench wall soil material is such that it will not
be removed from the area adjacent to the bedding.
D. The CONTRACTOR shall not open up more trench than the available pumping facilities
are able to dewater.
E. The CONTRACTOR shall assume responsibility of disposing of all water so as not to injure
or interfere with the normal drainage of the territory in which he is working.
F. In no case shall the pipe lines be used as drains for such water, and the ends of the pipe
shall be kept properly and adequately blocked during construction by the use of
approved stoppers and not by improvised equipment.
G. All necessary precautions shall be taken to prevent the entrance of mud, sand, or other
obstructing matters into the pipe lines, and on completion of the work, any such
material which may have entered the pipe lines must be cleaned out so that the entire
system will be left clean and unobstructed.
H. Release of groundwater to its static level shall be performed in a manner to maintain
undisturbed state of natural foundation soils, prevent disturbance of compacted backfill
or bedding, and prevent flotation of pipelines.
I. The CONTRACTOR shall at all times have on hand sufficient pumping equipment and
machinery in good working condition for all ordinary emergencies, and shall have
available at all times competent workmen for operation of pumping equipment.
J. Dewatering systems shall be designed and operated to prevent removal of natural soils
and to prevent excessive reductions in the groundwater outside the excavation to the
extent that it would damage or endanger adjacent structures or property.
K. All dewatering activities shall be completed in accordance with the approved Erosion
and Sedimentation Control Plan with special emphasis given to any temporary pump
discharges.

Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

02220 - 8

3.4 ROCK EXCAVATION
A. Where rock is encountered in the process of trench excavation it shall be completely
uncovered and stripped of all loose material over the area as specified herein.
B. Rock shall be excavated in accordance with Section 02211 Rock Excavation.
C. Ledge rock, boulders, and large stones shall be removed to provide a clearance of not
less than six (6") inches in every horizontal direction from all parts of pipe, fittings, and
other appurtenances.
D. Where rock is encountered at grade in trenches, the trench shall be excavated not less
than six (6") inches below the bottom of the pipe bell, refilled with fine, granular
material thoroughly tamped in-place and shaped to the pipe.
E. Excavated rock shall not be mixed with material selected for tamped backfilling under
and around the pipe or up to a level at least two (2') feet above the pipe.
3.5 TRENCH SIZE
A. Gravity piping:
1. As soil conditions will permit, the sides of trenches shall be cut in vertical,
parallel planes from the bottom of the trench to the top of the pipe and have
maximum width of two (2') feet plus the outside diameter of the pipe as shown
on the Construction Drawings.
2. The width of the remaining depth of the trench may be as wide as necessary
except as restricted by limits of right-of-way or existing improvements that are
to be protected; the sides, however, shall be as nearly vertical as practicable or
allowable.
3. If the trench width from the bottom of the trench to the top of the pipe is over-
excavated in excess of that specified, sewers shall be laid on a gravel bedding at
no extra cost to the OWNER.
B. Pressure Piping:
1. Trenches for pressure piping shall provide a minimum of 30 inches cover over
the barrel of the pipe, except as otherwise shown.
2. Width of trench at and below top of the pipe shall not exceed twelve (12")
inches on either side of pipe.
3. Width of trench above top of pipe may be as wide as necessary within limits of
right-of-way, with banks as nearly vertical as practicable or allowable, and
except as restricted by existing improvements, that are to be protected.

Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

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3.6 EXCAVATION FOR APPURTENANCES AND STRUCTURES
A. Excavation for appurtenances shall be made to a size that will allow at least twelve (12")
inches between the outer surfaces of the appurtenance and the excavation wall or
shoring.
B. Excavation for precast manholes and other precast structures shall be undercut six (6")
inches below the bottom of the precast structure and shall be backfilled with gravel
bedding as specified under the bedding material in this section.
C. Undercutting and providing a bedding for structures shall be considered as an integral
part of the work and no separate payment shall be allowed or made.
3.7 EMBEDMENT OF PIPE
A. Pipeline embedment shall consist of all bedding materials, including concrete,
foundation and initial backfill as shown on the Construction Drawings.
B. Class A Embedment:
1. Concrete Cradle: The pipe shall be embedded in a monolithic cradle of plain or
reinforced concrete.
a. The minimum thickness shall be one-fourth (1/4) the inside pipe
diameter or a minimum of four (4") inches under the barrel and
extending up the sides for a height equal to one-fourth (1/4) the
outside diameter.
b. The cradle shall have a width at least equal to the outside diameter of
the pipe barrel plus eight (8") inches or poured to the full width of the
trench.
2. Concrete arch: The pipe shall be embedded in carefully compacted gravel
bedding with a monolithic plain or reinforced concrete arch.
a. The gravel bedding shall have a thickness of one-fourth (1/4) the
outside diameter or three (3") inches minimum between the barrel
and bottom of trench excavation extending to the springline of the
pipe.
b. The concrete arch shall have a minimum thickness of one-fourth (1/4)
the inside diameter at the crown and have a minimum width equal to
the outside pipe diameter plus eight (8") inches or poured to the full
width of the trench.

Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

02220 - 10

C. Class B Embedment:
1. Class B embedment shall be used where an unstable trench bottom condition is
encountered or where established by the CQA ENGINEER or where shown on the
Drawings.
2. The pipe shall be laid on gravel bedding placed on a flat trench.
3. The gravel bedding shall have a minimum thickness of one-fourth (1/4) the
outside pipe diameter.
4. The gravel bedding shall extend to the springline of the pipe barrel, or one-half
(1/2) the outside diameter of the pipe.
D. Class C Embedment:
1. Class C embedment shall be used as the normal or ordinary embedment and
shall be used unless unstable trench conditions are present or where otherwise
shown on the Drawings.
2. The pipe shall be embedded in fine granular material on a trench bottom which
shall be level in cross-section except that a continuous trough shall be shaped in
the bedding which will fit the pipe barrel with reasonable closeness.
3. The bedding shall have a minimum thickness beneath the pipe of six (6") inches
or one-eighth (1/8) of the outside diameter of the pipe, whichever is greater.
4. The bedding shall extend up the sides of the pipe one-sixth (1/6) of the outside
diameter of the pipe.
E. Initial backfill material, which is from the bedding to one (1') foot above the pipe:
1. Shall be carefully deposited in successive horizontal layers of not more than
twelve (12") inches in loose depth on each side of the pipe.
2. Shall be thoroughly and carefully tamped or rammed around the pipe with
approved tools until reaching a minimum cover of not less than one (1') foot
over the top of the pipe.
3.8 ALTERNATE FOUNDATIONS
A. Where the bottom of the trench is found to consist of material which is unstable to such
a degree that, in the opinion of the CQA ENGINEER, it cannot be removed and replaced
with an adequate bedding material, alternative foundations methods may be required.
B. The CQA ENGINEER may require, depending upon the severity of the unstable soil, to
provide special foundations such as piling, concrete mats (or a combination thereof),
sheeting with keyed-in plank foundation, or other means of stabilization.
C. The type of alternative foundation methods shall be constructed in accordance with the
Construction Drawings or as approved by the CQA ENGINEER.
D. Should additional instructions or Detailed Drawings be required; they will be furnished in
accordance with the Supplemental General Conditions.
Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

02220 - 11

3.9 BACKFILLING TRENCHES
A. The backfilling of sewer or other pipe line trenches shall be started immediately after
the pipe work and embedment preparation has been inspected by the CQA ENGINEER.
B. Final backfill material, which if from a height of one (1') foot above the pipeline upward:

1. Shall be backfilled in well compacted layers.
2. If the trench extends along or across streets, roadways, useable alleys, or
sidewalks or any areas to be paved in new construction, the remainder of the
trench shall be backfilled and tamped to its full depth in the manner specified
for initial backfill.
3. Shall be backfilled in the manner specified for initial backfill where indicated on
the Construction Drawings.
C. Placement of backfill material in layers greater than twelve (12") inches loose fill shall
require prior approval of compaction methods and equipment.
D. All backfilling shall be done in such manner as will not disturb or injure the pipe or
structure over or against which it is being placed.
E. Any pipe or structure injured, damaged or moved from its proper line or grade during
backfilling operations shall be opened up and repaired and then re-backfilled as herein
specified.
F. Where excavation has been made, the top one (1') foot of backfill material shall consist
of fine, loose earth free from large clods, vegetable matter, debris, stone, or other
objectionable materials.
G. Temporary surfaces:
1. Where pipe trenches are cut across or along existing pavement, the
CONTRACTOR shall construct a temporary surface over the cut by filling and
tamping the upper six (6") inches of the cut with selected gravel, crushed stone
or reef which will not disintegrate under traffic and which shall be maintained in
good condition under traffic until the permanent pavement has been
constructed.
2. No specific payment will be allowed for temporary surfacing.
3.10 ANCHOR TRENCH BACKFILLING
The anchor trench will be backfilled and compacted to a dry density not less than 90 percent of
the maximum dry density determined by the Standard Proctor (ASTM D-698). Care should be
taken when backfilling the trench to prevent any damage to the geomembrane. Anchor trench
spoil shall be used as backfill material, wherever possible.
Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

02220 - 12

3.11 COMPACTION AND TESTING
A. Compaction and testing for quality control shall be in conformance with Section 01400
and the Specific requirements of this Section.
B. Minimum tests required on all materials to prove compliance with the specifications
shall be as follows:
1. A determination of soil classification, sieve analysis, maximum dry density as per
ASTM D-698 and optimum moisture content shall be made from each material
source.
2. In-place density test shall be made on all materials under roadways, streets,
useable alleys, or other similar areas as required by the CQA ENGINEER.
C. Compaction requirements:
1. Unless otherwise specifically noted elsewhere in these Specifications or on the
Construction Drawings, material shall meet the following compaction
requirements.
a. Bedding and initial backfill material shall be well compacted.
b. Final backfill and embankments shall be compacted to a density equal
to or greater than the surrounding undisturbed soil.
c. Compaction on total (initial & final) backfill and base material under
roadways shall meet compaction requirements as indicated in Section
02210 - Grading.
d. Embedment shall be well compacted.
2. The theoretical maximum density shall be arrived at in the manner prescribed
under applicable documents.
3. Material containing excessive moisture shall not be placed.
4. Its placement may be delayed until it has dried out to the proper moisture
content, or it may be thoroughly mixed with a drier material to obtain the
desired water content.
5. Material with insufficient moisture shall be wetted sufficiently before
compaction to obtain the desired moisture content.
6. Adequate equipment for furnishing and sprinkling water shall be kept available
at all times during the progress of the work.
D. Additional Material
Utilize excess suitable material excavated from the trench, if additional material is
needed. Additional materials are not available from trench excavation, obtain suitable
on site material where approved by the ENGINEER.

Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

02220 - 13

E. Backfill Under Roads
Compact backfill underlying pavement and sidewalks, and backfill under dirt and gravel
roads to a minimum 95 percent of the maximum dry density up to twelve (12) inches
under pavement or gravel road surface. Compact the remaining twelve (12) inches of
backfill to a minimum of 98 percent of the maximum dry density.
F. Backfill Along Restrained Joint Pipe
Backfill along restrained joint pipe shall be compacted to a minimum 95 percent of the
maximum dry density.
G. Detection Tape
Detection tape shall be buried 4 to 10-inches beneath the ground surface directly over
the top of the utility. Should detection tape need to be installed deeper, the
CONTRACTOR shall provide 3-inch wide tape. In no case shall detection tape be buried
greater than 20-inches from the finished grade surface.
3.12 SURFACE RESTORATION AND CLEAN-UP
A. CONTRACTOR shall properly restore to the satisfaction of the ENGINEER all surfaces,
structures, pavements and drives, sidewalks and curbs that were to remain but were
removed or disturbed by the CONTRACTOR through the execution of the Work.
B. Surface Restoration:
1. Once backfilling has been completed and all objectionable material has been
removed, surface restoration shall be conducted.
2. The CONTRACTOR shall bring all surfaces to finish grade and fine grade all
disturbed areas within the construction limits unless otherwise directed by the
ENGINEER.
3. Upon completion of finish grading, the CONTRACTOR shall seed all disturbed
areas, unless otherwise shown on the Drawings in accordance with Section
02930 - Grassing.
4. Shrubbery or trees shall be replaced or properly heeled-in and replanted.
C. Clean-up and Maintenance:
1. The CONTRACTOR shall maintain excavated areas, backfills, embankments,
trenches and access road grading and ditches until final acceptance by the
OWNER.
2. Any settlement or washing that may occur prior to acceptance of the work, shall
be repaired and grades re-established to the required elevations and slopes.
3. All debris and construction material and equipment shall be removed from the
job site when the work is completed. Material and equipment that is no longer
needed may be removed before the work is completed.
Specifications and Contract Documents – Cell No. 14B
Uwharrie Regional MSW Landfill Montgomery County, NC
September 2016 HHNT Project No. 6703-716-01

02220 - 14

D. All rights-of-way shall be left in a clean, neat and serviceable condition during and after
construction.

-- END OF SECTION --
1
Chao, Ming-tai
From:Chelsea Madden <[e-mail]>
Sent:Wednesday, March 22, 2017 4:27 PM
To:Chao, Ming-tai
Cc:Ritter, Christine; [e-mail]; [e-mail];
Matt Cheek
Subject:HHNT - Uwharrie Regional Landfill - Underdrain Piping Plan-Response to Comments
Attachments:Chao - Underdrain Piping Plan - Comment-Response.pdf
Dear Mr. Chao,

Please see the attached document regarding the Underdrain Piping Plan - Response to Comments for Uwharrie Regional
Landfill – Cell 14B.

Should you have any questions, please call.

Thank you,

CHELSEA MADDEN
Administrative Assistant

Hodges, Harbin, Newberry & Tribble, Inc.
3920 Arkwright Road, Suite 101 | Macon, Georgia 31210
Phone: [phone] | Fax: [phone]
Email: [e-mail]
www.hhnt.com

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