1306_Hwy49CDLF_PTCModificationApplication_DIN25852_20160204.pdf

-i- 111-370.002 Highway 49 Landfill
Permit Modification
January 2016
TABLE OF CONTENTS
1.0 SITE DESCRIPTION ........................................................................................................1
2.0 SUMMARY OF MODIFICATIONS ...............................................................................3
3.0 SUMMARY OF STORMWATER CALCULATIONS ..................................................5

TABLES

Table 1 – Permitted Capacity and Acreages
Table 2 – Proposed Capacity Modification

APPENDICES

Appendix A - Operations Plan
Appendix B - Drawings
Appendix C - Calculations

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Permit Modification
January 2016
1.0 SITE DESCRIPTION

This Application for the Modification of Solid Waste Permit for Construction and Demolition
Debris Landfill at the Highway 49 C&D Landfill is being submitted by Civil & Environmental
Consultants, Inc. on behalf of Greenway Waste Solutions at Harrisburg, LLC. This application
package includes information regarding the site design, construction and operation.

Project Title: Highway 49 Landfill Closure Permit Modification for the
Construction and Demolition Debris Landfill Facility Solid
Waste Permit Number 13-06

Property Owner: C&D Management Company, LLC.
19109 West Catawba Avenue, Suite 200
Cornelius, NC 28031-5614
[phone]

Property Owner Representative: Mr. Andy Burris, Landfill Manager

Consulting Engineer: Civil & Environmental Consultants, Inc.
1900 Center Park Drive
Suite A
Charlotte, NC 28217

Consulting Engineer’s Scott L. Brown, P.E.
Representative:

Proposed Site Operator: Greenway Waste Solutions at Harrisburg, LLC.
19109 West Catawba Avenue, Suite 200
Cornelius, NC 28031-5614
[phone]

Operator’s Representative: Mr. Andy Burris, Landfill Manager

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Permit Modification
January 2016
The Greenway Waste Solutions of Harrisburg, LLC. Construction and Demolition Debris
Landfill is located in Cabarrus County, NC. The operating landfill is located just north of
Harrisburg and accessed by Speedrail Court off of Highway 49. The Facility is bordered by
Coddle Creek to the north and east which empties to Rocky River to the south. The original
permit for the facility to construct Phase 1 was issued in 2000. The Permit to Operate for Phase 1
was issued in 2000, Permit to Construct Phase 2 to was issued in 2004. The Permit to Construct
Phase 3 was issued in 2007, Permit to Operate Phases 1-3 and the Permit to Construct Phase 1
Expansion was issued in 2011. Filling operations in Phases 1-3 of the landfill are still occurring.
The Permitted Capacity and Acreages for the current permitted landfill are shown in the chart
below:

Table 1 – Permitted Capacity and Acreages
C&D Unit Gross Capacity (cy) Acreage
Current Landfill
Phase 1 1,509,000 14.8
Phase 2 & 3 861,000 10.2
Sub-Total 2,370,000 25.8
Landfill Expansion
Phase I 1,000,000 16.2
Phase II 1,000,000 8.6
Phase III 1,100,000 12.0
Sub-Total 3,100,000 36.8
Total for Facility 5,470,000 62.6

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Permit Modification
January 2016
2.0 SUMMARY OF MODIFICATIONS

The requested modification for the Greenway Waste Solutions at Harrisburg, LLC. landfill
includes revised landfill final elevations, stormwater conveyance swales and edge of waste limits
for the Landfill Closure. The modifications will result in less than ten percent additional landfill
capacity and are described in detail below. Additionally, a revised Operations Plan is included in
Appendix A of this Permit Modification.

The existing permitted final elevation contours for Landfill Phases 1-3 depict 3:1 side slopes
from the edge of waste to the top of the completed landfill. In addition, benches 5 feet in width
were to be constructed every thirty (30) vertical feet along the face of the completed landfill
slope. Stormwater swales were proposed to intercept stormwater run-off from the landfill slope
face. The swales were to discharge to rip-rap downchutes which feed into perimeter swales at the
base of the landfill, then directed run-off towards permanent sediment control basins.

The revised final elevation contours for the Phase 1-3 are shown in the Highway 49 C&D
Landfill Closure Modification construction drawings dated January 2016 (included with this
submittal). The final elevation contours depict a 3:1 slope from the revised edge of waste line to
the final top elevation of the landfill. All required buffers are maintained. The flat benches, as
depicted in the permitted drawings, have been removed from the landfill face and replaced with
“tack-on” drainage swales constructed on the landfill side slopes to intercept sheet flow run-off
and convey the stormwater to perimeter swales and sediment basins. There are no modifications
proposed for the permanent sediment basins. The highest proposed elevation of the modified
landfill Phases 1, 2, and 3 will be elevation 676 feet (NAVD 1988), which is less than the
permitted top elevation for Final Closure of 710 feet.

The edge of waste limits for Phases 1-3 were adjusted slightly to maximize the proposed waste
footprint, but still maintain compliance with all NC Solid Waste regulations and buffers. The
revised limits are shown in the construction drawings (sheets C200 and C300). The proposed
modifications to Phases 1-3 and Landfill Expansion areas will result in additional capacity for
the phases. The combined permitted capacity for Phases 1-3 and Landfill Expansion is 5,470,000

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Permit Modification
January 2016
cubic yards (cy). The proposed revisions associated with this permit modification will increase
the capacity for Phases 1-3 and Landfill Expansion to 5,996,908 cy. The resulting additional
capacity is 526,908 cy, a 9.6% increase in capacity. This information is summarized in the table
below:

Table 2 – Proposed Capacity Modification
Area
Permitted
Capacity (cy)
Proposed Additional
Capacity (cy)
Proposed
Capacity (cy)
Proposed
Increase in
Capacity
Phases 1-3 and
Landfill
Expansion
5,470,000 526,908 5,996,908 9.6%

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Permit Modification
January 2016
3.0 SUMMARY OF STORMWATER CALCULATIONS

Calculations were performed to ensure that the proposed “tack-on” drainage swales could convey
stormwater run-off from the landfill face to slope drains which will discharge to perimeter swales
and the existing sediment basins. Sheet C200 of the permit drawings (Appendix B) detail the
location of the proposed drainage swales, downchutes and perimeter swales. Sheet C300 of the
permit drawings (Appendix B) is the drainage basin map for the proposed tack-on and perimeter
swales.

Tack-on and perimeter swales were sized to intercept and convey slope drainage from the 25
year, 5 minute storm event. Stormwater run-off flows were calculated using the rational method.
Based on the drainage basin map, the basin area for each tack-on swale will not exceed 3 acres
and the basin area for each perimeter swale will not exceed 10.53 acres. The swales were
designed to convey these respective flows, see stormwater calculations in the Appendix C.

Both types of swales will require either matting with temporary erosion control blankets until
vegetated, or riprap. The flow velocity and erosion control matting calculations have been
included in the stormwater calculations in Appendix C. Details for the construction of the swales
are shown on sheet C400 of the permit drawings (Appendix B).

______________________________________________________________________________

APPENDIX A
OPERATIONS PLAN
______________________________________________________________________________

HIGHWAY 49 CONSTRUCTION & DEMOLITION LANDFILL PERMIT
MODIFICATION OPERATIONS PLAN

Prepared For:

Greenway Waste Solutions of Harrisburg, Inc.
19109 West Catawba Avenue, Suite 200
Cornelius, North Carolina 28031

Prepared By:

CIVIL & ENVIRONMENTAL CONSULTANTS, INC.
CHARLOTTE, NORTH CAROLINA

CEC Project 111-370.002

JANUARY 2016

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January 2016
TABLE OF CONTENTS
1.0 INTRODUCTION..............................................................................................................1
1.1 General .................................................................................................................... 1
1.2 Purpose .................................................................................................................... 1
1.3 Reference Documents ............................................................................................. 3
1.4 Regulations ............................................................................................................. 4
1.5 Location .................................................................................................................. 4
2.0 OPERATIONAL DRAWINGS ........................................................................................5
3.0 WASTE ACCEPTANCE AND DISPOSAL REQUIREMENTS ..................................6
3.1 Asbestos Waste ....................................................................................................... 6
3.2 Waste Exclusions .................................................................................................... 6
3.3 Recycling Facility ................................................................................................... 8
3.3.1 Overview ......................................................................................................8
3.3.2 Contact Information .....................................................................................9
3.3.3 Recycling Facility Process ...........................................................................9
3.3.4 Holding Time for Recyclable .....................................................................10
3.3.5 Record Keeping Program ...........................................................................10
3.4 Other Recycling .................................................................................................... 11
3.4.1 White Goods ..............................................................................................11
3.4.2 Tires ...........................................................................................................11
3.4.3 Concrete/Inert Material ..............................................................................11
3.4.4 Shingles ......................................................................................................12
3.4.5 Wood Waste ...............................................................................................12
3.4.6 Gypsum Wallboard/Sheetrock Recycling ..................................................12
3.5 Mobile Home Deconstruction ............................................................................... 13
3.5.1 Overview ....................................................................................................13
3.5.2 Contact Information ...................................................................................14
3.5.3 Mobile Home Deconstruction Process .......................................................14
3.5.3.1 Access ......................................................................................15
3.5.3.2 Waste Disposal .........................................................................15
3.5.3.3 White Goods ............................................................................15
3.5.3.4 Asbestos ...................................................................................16
3.5.3.5 Deconstruction of Mobile Homes ............................................16
3.5.3.6 Holding Time for Mobile Homes ............................................16
3.5.3.7 Record Keeping Program .........................................................17
3.6 Composting Facility .............................................................................................. 17
3.7 Waste Screening .................................................................................................... 17
3.8 Random Load Inspections..................................................................................... 18
3.9 Cover, Spreading, and Compacting ...................................................................... 20
3.10 Air Criteria and Fire Control ................................................................................. 20
3.11 Access and Safety ................................................................................................. 21
3.12 Erosion and Sedimentation Control ...................................................................... 21
3.13 Stormwater Conveyance and Mitigation .............................................................. 23
3.14 Operating Record and Recordkeeping Requirements ........................................... 23

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January 2016
Table of Contents (continued)
Page ii

DRAWINGS

Figure 1 – Facility Map

APPENDICES

Appendix A – Composting Facility Permit Application

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January 2016

1.0 INTRODUCTION

1.1 GENERAL

This document is the Operations Plan for the Highway 49 Construction & Demolition Landfill
Expansion - Phase 1 (Facility), located in Harrisburg, Cabarrus County, North Carolina. The
Plan serves as a guide to the landfill operator with respect to routine landfill operations,
environmental monitoring, and record keeping. The Facility is permitted to operate as a
construction and demolition (C&D) landfill in accordance with North Carolina Department of
Environmental Quality (NCDEQ), Division of Waste Management Permit Number 13-06.
The Facility is expected to have a maximum operational waste acceptance rate of 120,000 tons
per year. Equipment and staffing recommendations in this manual are based on these disposal
rates and are subject to change in the event of future modification to waste acceptance rates at
the Facility.

1.2 PURPOSE

The Operations Plan is intended to serve as a site reference. Every employee should be
acquainted with its contents and location at the site. Each section of this plan is self-contained,
easily updated, and may be used in the field, for training sessions, or self-instruction.
The operations manual addressed the following topics:

Personnel requirements
Entrance procedures and recordkeeping
Incoming vehicle inspection
Traffic control Landfilling operations Equipment requirements
Operation and maintenance of environmental controls
Contingency and emergency procedures
Safety practices and plan implementation

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This Operations Plan has been prepared in accordance with North Carolina Administrative
Code (NCAC) Title 15A Section 13B .0542. Furthermore, the plan is based on engineering
judgment and reflects generally accepted solid waste landfilling techniques.

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1.3 REFERENCE DOCUMENTS

This operations plan constitutes a portion of the Highway 49 Construction & Demolition Landfill
Permit Modification prepared by Civil & Environmental Consultants, Inc. (CEC). The entire
Permit Modification should be kept on file with this plan at the site to supplement this plan in
terms of long-term facility development plans, monitoring requirements, engineering design, site
hydrogeology, construction activities, and site closure and post–closure care. Other documents
pertinent to facility operations and site development include:
• North Carolina Solid Waste Management Rules, 15A NCAC 13B with current
amendments
• North Carolina Erosion and Sediment Control Planning and Design Manual, NCDEQ,
May 2013.
• North Carolina Erosion and Sediment Control Field Manual, NCDEQ, July 2001
• Documents 1-12 of the Permit to Construct (Phase 2). Issued to Highway 49
C&D Landfill Inc., September 30, 2004.
• Documents 1-13 of the previous Permit to Operate (Phase 2A). Issued to Highway 49
C&D Landfill Inc., February 4, 2005.
• Modification to Current Operation Plan/Permit to Operate – Revised, Highway 49
C&D Landfill Inc., Cabarrus County, North Carolina. Prepared by: BP Barber
Engineering. Prepared for: Highway 49 C&D Landfill Inc. February 15, 2007.
• East Section of Phase 2 As-Built Subgrade Verification, Highway 49 C&D Landfill
Inc., Cabarrus County, North Carolina. Prepared by: Chas. H. Sells, Inc. Prepared
for: Highway 49 C&D Landfill Inc. August 9, 2007.
• Operations Plan, Highway 49 C&D Landfill Inc., Cabarrus County, North
Carolina. Prepared by: BP Barber Engineering. Prepared for: Highway 49 C&D
Landfill Inc. August 29, 2007.
• Construction Plan Application and Composting Facility Permit Application for the
Highway 49 Landfill. Prepared by BP Barber. Prepared for: Highway 49 C&D
Landfill Inc. August, 2010.

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• Operations Plan, Highway 49 C&D Landfill Inc., Cabarrus County, North
Carolina. Prepared by: Brown and Caldwell. Prepared for: Highway 49 C&D
Landfill Inc. June 3, 2011.

1.4 REGULATIONS

Solid Waste Management Rules 15A NCAC 13B .500 and all conditions of the operating
permit granted by the NCDEQ Division of Waste Management, shall take precedence and be
complied with by landfill operators if there is an actual or perceived contradiction with the text
of this plan, unless written consent for variance(s) is granted by the NCDEQ Division of Waste
Management. The Facility supervisory staff should be familiar with the State Solid Waste
Management Rules and the Facility permit(s).

1.5 LOCATION

The Facility is located on Speedrail Court, in Harrisburg, North Carolina. Currently, landfilling
operations are on-going at previously approved Phases 1-3.

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2.0 OPERATIONAL DRAWINGS

Figure 1 included in this report illustrates long-term operations of the facility on a
topographical map consistent with Subparagraph (d)(2) of Rule .0537 15A NCAC 13B.
The Permit to Construct drawings from the 2010 Permit to Construct Permit Application (BP
Barber) include all other regulatory drawings.

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3.0 WASTE ACCEPTANCE AND DISPOSAL REQUIREMENTS

The Facility will accept only those solid wastes it is permitted to receive. The landfill owner or
operator must notify the Division within 24 hours of attempted disposal of any waste the
C&DLF is not permitted to receive, including waste from outside the area the landfill is
permitted to serve.

3.1 ASBESTOS WASTE

Friable asbestos waste must be managed in accordance with 40 CFR 61, which is hereby
incorporated by reference including any subsequent amendments and additions. Copies of 40
CFR 61 are available for inspection at the Department of Environment Quality, Division of
Waste Management. The regulated asbestos waste must be covered immediately with soil in a
manner that will not cause airborne conditions and must be disposed of separate and apart
from other solid wastes, as shown on Operation drawings:
(A) In a defined isolated area within the footprint of the landfill, or
(B) In an area not contiguous with other disposal areas. Separate areas must
be designated so that asbestos is not exposed by future land-disturbing
activities.
Non-friable asbestos may be accepted consistent with normal operating procedures as set forth
in a following section.

3.2 WASTE EXCLUSIONS

The Facility will accept all types of wastes generated within approved service area except those
prohibited by 15A NCAC 13B .0542 (e). Specifically, the following types of wastes will not be
accepted:
(1) Containers such as tubes, drums, barrels, tanks, cans, and bottles unless they are
empty and perforated to ensure that no liquid, hazardous or municipal solid
waste is contained therein,
(2) Garbage as defined in G.S. 130A-290(a)(7),

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(3) Hazardous waste as defined in G.S. 130A-290(a)(8), to also include hazardous
waste from conditionally exempt small quantity generators,
(4) Industrial solid waste unless a demonstration has been made and approved by
the Division that the landfill meets the requirements of Rule .0503(2)(d)(ii)(A),
(5) Liquid wastes,
(6) Medical waste as defined in G.S. 130A-290(a)(18),
(7) Municipal solid waste as defined in G.S. 130A-290(a)(18a),
(8) Polychlorinated biphenyls (PCB) wastes as defined in 40 CFR 761,
(9) Radioactive waste as defined in G.S. 104E-5(14),
(10) Septage as defined in G.S. 130A-290(a)(32), (11) Sludge as defined in G.S.
130A-290(a)(34),
(12) Special wastes as defined in G.S. 130A-290(a)(40),
(13) White goods as defined in G.S. 130A-290(a)(44), and
(14) Yard trash as defined in G.S. 130A- 290(a)(45),
(15) The following wastes cannot be received if separate from C&DLF waste: lamps
or bulbs including but not limited to halogen, incandescent, neon or fluorescent;
lighting ballast or fixtures; thermostats and light switches; batteries including but
not limited to those from exit and emergency lights and smoke detectors; lead
pipes; lead roof flashing; transformers; capacitors; and copper chrome arsenate
(CCA) and creosote treated woods.
(16) Waste accepted for disposal in a C&DLF unit must be readily identifiable as C&D
waste and must not have been shredded, pulverized, or processed to such an extent
that the composition of the original waste cannot be readily ascertained except as
specified in Subparagraph (17) of this Paragraph.
(17) C&D waste that has been shredded, pulverized or otherwise processed may be
accepted for disposal from a facility that has received a permit from an
authorized regulatory authority which specifies such activities are inspected by
the authority, and whose primary purpose is recycling and reuse of the C&D
material. A waste screening plan and waste acceptance plan must be made
available to the Division upon request.

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(18) The owner or operator of a C&DLF must not knowingly dispose any type or
form of C&D waste that is generated within the boundaries of a unit of
local government that by ordinance:
(A) Prohibits generators or collectors of C&D waste from disposing that
type or form of C&D waste.
(B) Requires generators or collectors of C&D waste to recycle that type
or form of C&D waste.

3.3 RECYCLING FACILITY

A Recycling Facility will be operated on site. The facility consists of approximately two (2)
acres and is located within the Landfill Facility boundary. The approximately 17,000 square
foot Facility is an enclosed structure and receives mixed C&D loads of material. The waste
acceptance will be consistent with Section 3.2 of this document. The facility includes an
open paved area for parking, the structure itself, and a pole barn for storage.

3.3.1 Overview

This Operations Manual was prepared for Recycling Facility located within the Facility
boundary of the Highway 49 C&D Landfill and Recycling Center (Highway 49). The
Recycling Facility is strictly for the processing of C&D material in order to recycle
materials. Highway 49 plans to recycle as many varieties of materials as possible as end
users are available. Initially, scrap metal recycling, wood waste, sheetrock, corrugated
cardboard roofing shingles and inert materials will be recycled. Once an end-user of another
material (i.e. glass) is located, these other materials may be recycled. Any non-recyclable
material will be disposed of appropriately by Highway 49 upon completion of the recycling
process.

The information contained herein was prepared to provide landfill personnel with a clear
understanding of how the facility would be operated. While deviations from the operations

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outlined here may be acceptable, they should be reviewed and approved by the Design
Engineer and the Highway 49 Solid Waste Manager.

3.3.2 Contact Information

All correspondence and questions concerning the operation of the Recycling Facility should
be directed to the appropriate County and State personnel listed below. For fire or police
emergencies dial 911.

North Carolina Department of Environment al Quality
North Carolina Department of Environmental Quality
610 E Center Ave
Mooresville, NC 28115
Phone: [phone]
Fax [phone]

Division of Waste Management (DWM) – Solid Waste Section:

Western Area Supervisor: Deborah Aja
Permitting Engineer: John Murray, PE
Waste Management Specialist: Teresa Bradford

Division of Land Resources - Land Quality Section:

Regional Engineer: Zahid Kahn, PE

3.3.3 Recycling Facility Process

Selected in-coming loads will be weighed at the existing scalehouse and directed to the Facility.
All in-coming loads to the Facility will be unloaded under the cover of the structure and all
processing will be indoors. The recycled material will be loaded into transport trailers within

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the structure. There will be no uncovered storage of unprocessed material outside of the
structure. Out-going loads will be weighed at the existing scalehouse. Liquids, if any, will not
be released from the covered structure. Any non-recyclable material will be disposed of
appropriately by Highway 49.

3.3.4 Holding Time for Recyclable

Once a recyclable material is removed from the C&D loads, it may be stockpiled within the
Facility for up to 30 days. No materials shall be kept in this area for more than 30 days, nor shall
they be stockpiled in other areas waiting recycling. Temporary storage of inert material may be
stored uncovered outside of the structure and other materials such as concrete, wood waste,
shingles, metals may be relocated to the temporary stockpile areas adjacent to the landfill
working face as indicated on the attached site plan. Additional recovered material will be stored
in a pole barn on site.

3.3.5 Record Keeping Program

Highway 49 shall maintain the following records related to the Recycling Facility in an
operating record at the landfill:

A. Weight of C&D loads processed;

B. Weight of C&D loads unrecoverable; and

C. Date and disposal information for all recycled materials tons include location
and vendor of recipient of recycled materials.

The operating record will be kept up to date and reconciled on a monthly basis by the Landfill
Manager or his designee. It will be presented upon request to DWM for inspection. A copy of
this Operations Manual will be kept at the landfill and will be available for use at all times.

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3.4 OTHER RECYCLING

In addition to the Recycling Facility, incoming C&D waste will be recycled as much as
practical. Stockpile areas will be located near, but clearly segregated from the working face.
These stockpile areas will be kept in a clean orderly fashion. Incoming waste with easily
identified recyclables will be unloaded in a recycling area close to the working face. Metals
pulled from the load will be placed in the on-site metal recycling container. Clean cardboard
will be removed and transported to an on-site bailer.

3.4.1 White Goods

White goods will be handled in accordance with all State and Federal regulations. Material
from the Recycling Facility may also be stored in this stockpile. Any white goods containing
CFC’s will have them managed properly prior to removal of the white goods.

3.4.2 Tires

Stockpiled tires will be covered and handled in accordance with all State and Federal
regulations. There will be a designated container on site at all times for tires removed from
the working face for final disposal at a properly permitted facility. Material from the
Recycling Facility may also be stored in this stockpile. Tires will not be stockpiled for a time
period exceeding 30 days. The stockpile will be in an enclosed trailer or covered area.

3.4.3 Concrete/Inert Material

Inert debris such as brick, concrete, concrete block, rock, etc. will be removed and
transported to the reprocessing/material storage area for crushing. Material from the
Recycling Facility may also be stored in this stockpile. The material will be stockpiled in a
pile not to exceed 500 tons for periodic crushing.

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3.4.4 Shingles

Shingles will be stockpiled on site for recycling. The stockpile area will be close to the working
face, but clearly segregated from it. Material from the Recycling Facility may also be stored in
this stockpile. The grinding of shingles will be done by properly permitted third party
resources. The stockpile of shingles will not exceed 500 tons. The ground shingles will be
transported off-site to a properly permitted third party end- user.

3.4.5 Wood Waste

Wood waste consisting of pallets, dimension lumber, and similar non-treated material will be
stockpiled on site for recycling. The stockpile area will be close to the working face, but clearly
segregated from it. Material from the Recycling Facility may also be stored in this stockpile.
The stockpile of wood waste will not exceed 500 tons.

3.4.6 Gypsum Wallboard/Sheetrock Recycling

A gypsum wallboard/sheetrock recycling area will be operated on site. The area will be an
enclosed pole building and receive only “clean” source separated material including off-
specification material from manufacturers. In-coming loads will be weighed at the existing
scalehouse and directed to the area.

Segregated loads of some products such as gypsum may originate on the project
construction site and transported to the facility at which time they are directed to our
gypsum reprocessing area by-passing the indoor Recycling Center. The material is
deposited on the ground and stockpiled outdoors but is covered with weighted tarps to keep
the material dry awaiting processing. When grinding is necessary to develop outgoing
product, the Peterson Horizontal Grinder is used to grind the gypsum product to a 2 inch
minus material. This product is further refined with a Sandvik Tir-Screener to further
enhance the marketability gypsum product to meet the end users specifications. The fine
material has a direct feed conveyor that discharges the material into a Pole Structure that is

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tarped on all sides. This is performed for two reasons; 1) the product must remain dry at all
times because the low moisture content is required by our client and 2) the fine material has
the highest dust emissions potential. By discharging this material in the building it
eliminates the dust generated by coming off the end of the conveyor and stockpiling on the
ground. The larger more coarse product (much less dust potential), is screened leaving
some of the original wall board paper backing intact is discharged from the other conveyor
line is covered by tarps for transportation to another end user. The fine material is stored in
the Pole building awaiting transportation to the final end user.

At no time will stockpiled unprocessed sheetrock exceed 600 tons. The processed material will
be stored in bunkers consisting of fine screenings, medium screenings, and coarse/paper
screenings. Out-going loads will be weighed at the existing scalehouse. At no time will
stockpiled material exceed 600 tons.

The facility recycles all of the in-coming material from Griffin Brothers Reclamation Centers
and other sources. One hundred percent of the by-product is sold to customers throughout the
region for a variety of uses.

3.5 MOBILE HOME DECONSTRUCTION

3.5.1 Overview

This Operations Manual was prepared for Mobile Home Deconstruction Area located
adjacent to the Highway 49 C&D Landfill and Recycling Center (Highway 49). The Mobile
Home Deconstruction Area is strictly for the deconstruction of mobile homes in order to
recycle materials from the mobile homes. Highway 49 plans to recycle as many varieties of
materials as possible as end users are available. Initially, scrap metal recycling will be
conducted. Once an end-user of another material (i.e. glass) is located, these other materials
may be recycled. Any non-recyclable material will be disposed of appropriately by Highway
49 upon completion of the deconstruction process.

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The information contained herein was prepared to provide landfill personnel with a clear
understanding of how the facility would be operated. While deviations from the operations
outlined here may be acceptable, they should be reviewed and approved by the Design
Engineer and the Highway 49 Solid Waste Manager.

3.5.2 Contact Information

All correspondence and questions concerning the operation of the Highway 49 Mobile Home
Deconstruction Area should be directed to the appropriate County and State personnel listed
below. For fire or police emergencies dial 911.

North Carolina Department of Environmental Quality

North Carolina Department of Environmental Quality
610 E Center Ave
Mooresville, NC 28115
Phone: [phone]
Fax [phone]

Division of Waste Management (DWM) - Solid Waste Section:

Western Area Supervisor: Deborah Aja
Permitting Engineer: John Murray, PE Waste
Management Specialist: Teresa Bradford

Division of Land Resources - Land Quality Section:

Regional Engineer: Zahid Kahn, PE

3.5.3 Mobile Home Deconstruction Process

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Mobile homes will be deconstructed using the processes outlined below.

3.5.3.1 Access

Mobile home owners seeking disposal will contact the Landfill and be placed on a waiting list.
No more than Two (2) mobile homes will be allowed on-site for deconstruction at one time.
Once space is available for a mobile home, the scale operator at the landfill will contact the
next owner on the waiting list. The owner will have a 48 hour window in which to contact the
Landfill with information regarding the delivery date and hauler. If owner cannot arrange
delivery within this initial 48 hour period, the owner may make alternate arrangements for
delivery and must notify the Landfill a minimum of 48 hours prior to planned delivery. The
delivered mobile home will not be weighed on the scales at time of delivery, but the owner will
be charged based upon the size and dimensions of the mobile home.

If delivery is not made within 48 hours of the scheduled delivery date, the owners name will be
placed on the waiting list and the owner will be notified. If an owner has more than one mobile
home, they will be rotated with others on the waiting list.

3.5.3.2 Waste Disposal

All mobile homes must be free of garbage, household hazardous waste, and all other non-
construction and demolition waste prior to acceptance by the landfill.

3.5.3.3 White Goods

White goods will be accepted with the mobile home. White goods will be removed using a
track-hoe and handled in accordance with all State and Federal regulations. Any white
goods containing CFC’s will have them managed properly prior to removal of the white
goods, and deconstruction of the mobile home.

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3.5.3.4 Asbestos

Since asbestos may be located in the building materials of mobile homes constructed prior to
1983, all mobile homes built before January 1, 1983 will be thoroughly sprayed with water
(both interior and exterior) to minimize dust. Upon demolition of a mobile home constructed
prior to 1983, the waste generated will be placed in the C&D landfill and covered with six
inches of soil or approved alternate daily cover.

3.5.3.5 Deconstruction of Mobile Homes

Once accepted, the mobile home will be placed in the mobile home deconstruction area. Mobile
home deconstruction will be dependent upon weather conditions and manpower availability and
will ONLY take place in the deconstruction area. Prior to deconstruction, mobile homes
constructed before 1983 will be thoroughly sprayed with water to minimize dust (as noted
above). The home will then be deconstructed using a track-hoe. The track-hoe will tear the
trailer apart and lay the pieces on the ground to be separated by landfill personnel. The
personnel will separate the non-recyclable materials from the recyclable materials.

Initially, scrap metal is planned for recycling. As other end-users for other materials are
available, other materials may be separated for recycling. All material not planned for
recycling will be placed in the C&D landfill before the end of the day in which the
deconstruction takes place. Material from mobile homes constructed prior to 1983 will be
covered prior to the end of the day. All recyclable materials will be stockpiled in the
deconstruction area for future recycling. No open flames or cutting with torches will be
allowed within 100 feet of the C&D landfill.

3.5.3.6 Holding Time for Mobile Homes

All mobile homes must be deconstructed within 45 days from acceptance into the
deconstruction area. Upon receipt at the landfill, the date shall be painted on the side or end of

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January 2016

the mobile home, or on the frame, for identification purposes for Solid Waste Section
personnel.

3.5.3.7 Record Keeping Program

Highway 49 shall maintain the following records related to the Mobile Home Deconstruction
in an operating record at the landfill:
A. Mobile Home Acceptance records including dates and
description;
B. Owner and hauler information for each mobile home;
C. Date of deconstruction for each mobile home and materials to be recycled;
D. Date and disposal information for all recycled materials tons include location
and vendor of recipient of recycled materials; and
E. Date and certification of CFC’s removed.

The operating record will be kept up to date by the Solid Waste Director or his designee. It will
be presented upon request to DWM for inspection. A copy of this Operations Manual will be
kept at the landfill and will be available for use at all times.

3.6 COMPOSTING FACILITY

The composting facility Permit Application included in Appendix A provides detailed site
design, construction, and operation information.

3.7 WASTE SCREENING

The landfill operator shall be responsible for screening wastes to ensure that hazardous or
unacceptable wastes are not disposed in the landfill. Screening of wastes (load
inspections) shall be accomplished as follows:

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Informal load checking will be the responsibility of all employees, particularly those that work
at the entrance area and those that work at or near the active fill area. Each employee will
observe vehicles entering the Facility and landfill for any potentially unauthorized waste and
will alert management personnel if any unauthorized wastes are suspected. Through the waste
collection programs, there will be several checkpoints:
Facility Entrance – Only authorized vehicles and material will be allowed beyond
the scales. The scale attendant will refuse entry to any unauthorized vehicles or
vehicles observed carrying unauthorized waste.
Active face checkpoints – All incoming loads of waste will be observed by the
equipment operators as it is discharged at the active face
Checkpoints during compaction at active face – Material will be inspected by the
landfill compactor operator as it is compacted at the active face.

3.8 RANDOM LOAD INSPECTIONS

In addition to the visual inspections performed by the equipment operator/attendants, a
random inspection program shall be implemented to detect and prevent disposal of any of the
unauthorized wastes listed in previously. Inspections conducted as part of this program shall
be performed by personnel trained in the following areas: methods for identification and
determination of unauthorized wastes, handling procedures for unauthorized wastes, record
keeping requirements of the program, and occupational health and safety. Inspection
personnel shall also have a thorough understanding of the North Carolina Hazardous Waste
Management Regulations (15A NCAC 13A) and the North Carolina Regulated Medical
Waste Management Regulations (15 NCAC 13B .1203).

The frequency of the random inspections shall be determined by the quantity and type of waste
received, the familiarity with the generators and/or transporters, and the occurrences of
identified unauthorized waste. Inspections should be performed at the minimum of the
following frequency: Once a week. The inspections also need to be random. The time of day
and day of week shall vary between inspections. The transporter/hauler selected for inspection
shall also vary between inspections.

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The procedure for the inspection shall be as follows:
- Stop the selected vehicle prior to the working face of the landfill.
- Notify the driver of the inspection.
- Direct the vehicle to the inspection area. The inspection area may be either a
permanently designated location or a temporary location adjacent to the working
face.
- If possible, perform a visual observation of the waste prior to unloading. If
unauthorized waste is observed, or suspected, the vehicle shall be prohibited from
unloading, and shall be directed out of the facility.
- If no unauthorized waste is observed or suspected from the visual observation, or if
a visual observation is not possible, the vehicle shall discharge the load at the
inspection area. The driver shall remain at the inspection area while the inspection
is performed, unless a safety concern requires evacuation of the area. Equipment
shall be used to spread and turn the waste to facilitate a visual observation of the
load contents. If no unauthorized waste is identified, the waste shall be transferred
to the working face for disposal.
- If unauthorized waste is identified in the load, and the unauthorized waste is not a
regulated hazardous waste, a regulated medical waste, a regulated toxic waste, a
regulated liquid waste, or a waste which requires special handling, the waste shall
be loaded back into the vehicle and removed from the facility.
- If acceptability of the waste cannot be determined by visual observation, the waste
can either be rejected and loaded back into the vehicle and removed from the
facility, or samples of the waste can be taken to determine acceptability. Testing
shall be selected based on the reason for the suspicion of unacceptability.
- If the waste is suspected of being a liquid waste, a regulated hazardous waste, a
regulated medical waste, or a regulated toxic waste, site personnel will safely
identify the nature of the unauthorized waste. Wastes within these categories are not
to be handled by landfill staff. Upon assessment of the waste, qualified contractors
will be contacted to provide direction for temporary handling, isolation, and security.
Within 24 hours of discovery, the Facility will orally inform NCDEQ Division of
Waste Management (Division) of the incident and make every effort to contact a

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waste contractor for the proper packaging, removal, and disposal of the unauthorized
waste. The Division will be informed in writing of the incident and steps taken to
properly dispose of the unauthorized waste.

Management of this Facility reserves the right to establish acceptance criteria and procedures
for certain non-municipal solid wastes. These may be more restrictive than required by law
based on quantities and characteristics of the waste stream, current operating status of the
landfill, and characteristics of waste streams previously received. Acceptability will be based
on judgment of the landfill operator’s technical personnel with respect to regulatory
requirements, physical and chemical qualities and other technical considerations.

3.9 COVER, SPREADING, AND COMPACTING

The working face will be restricted to the smallest area feasible and compacted as densely as
feasible. Any area that exceeds one-half (1/2) acre or more on a weekly basis will be covered
with six (6) inches of earthen material. Cover may be placed at more frequent intervals to
control disease, vectors, fires, odors, blowing litter, and scavenging. Areas where additional
waste will not receive waste for three (3) months, but will receive additional waste in the
future will be covered and stabilized with vegetative cover or other stabilizing material.

Appropriate methods including fencing and diking will be used to confine wind-blown solid
waste. At the end of each day, wind-blown waste will be collected and disposed of in the
landfill.

3.10 AIR CRITERIA AND FIRE CONTROL

No open burning of waste will be permitted on site. The Division will be notified verbally
within 24 hours and in writing with 15 days of any fire and/or explosion at the facility.

If a fire occurs at the landfill, the Harrisburg Fire Department will be notified. Hot loads that
are brought to the facility will be immediately dumped away from the landfill and the fire

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department notified. The hot load will be sprayed down with water until extinguished. The
load is then to be reloaded for disposal in the landfill.

3.11 ACCESS AND SAFETY

The site has controlled access with the use of entrance gates. The entrance gates allow entry to
the currently operating landfill located to the west of the expansion area. The same entrance
will be used for access to the expansion area, and will remain gated. Access to the expansion
area is restricted to the entrance gate only. Coddle Creek prevents access to the site from the
north and the east, while the currently operating landfill (with fencing and wooded buffer)
prevents access from the west. Access to the site from the south is also restricted by a wooded
buffer. Access roads are all-weather construction and will be maintained in good condition.

A scalehouse is located at the entrance with an attendant present during operational hours.
The attendant is responsible for evaluating loads to assure compliance with operation
requirements and to direct the loads to the appropriate location on site—landfill,
recycling/processing area, or composting facility. In addition, signs are posted to direct loads
to the appropriate area.

Dust is controlled on access roads through the use of a water truck. Signs are posted
indicating that liquid, hazardous, and municipal wastes are prohibited.

3.12 EROSION AND SEDIMENTATION CONTROL

The Erosion and Sedimentation Control Plan was developed by BP Barber to meet all
requirements set forth by the Sedimentation Pollution Control Law (15A NCAC 4), and other
requirements set forth by the North Carolina Department of Environmental Quality (NCDEQ).
All erosion and sedimentation control measures were designed based on a 25 year, 24 hour
storm event occurring in Cabarrus County, North Carolina per the NCDEQ Division of Waste
Management-Solid Waste Program. Temporary measures to be used on the site are sediment

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basins and silt (sediment) fencing. These, along with permanent ditches and seeding make up
all erosion control measures to be utilized on the site.

The sediment basin shall be inspected at minimum weekly, and after each significant rain event
(1/2 inch or greater). Sediment shall be removed and the basin restored to original dimensions
after sediment has accumulated to one-half (1/2) of design volume indicated by cleanout stripe
on riser structure. Removed sediment shall be placed in an area that has sediment controls in
place. Sediment basin spillways, baffles, embankments and outlet control structure shall be
inspected at the same time for erosion damage and piping (embankment only). All necessary
repairs shall be made immediately to prevent basin failure.

Silt fencing shall be inspected at least once per week and after every rainfall event. Any
tears, cracks or overall failure should be repaired and/or replaced immediately. Sediment
deposits shall be removed as necessary to ensure proper functioning of fencing. Silt fencing
shall remain until final site stabilization has occurred.

Permanent ditches should be seeded and matted immediately after their construction; they
should be inspected after all rain events for any failure of the ditch or erosion control matting.
All outlet protection measures used to protect downstream channel vegetation shall be
inspected for wash out. All necessary repairs/replacements should be made immediately, and
rip rap should be added where necessary.

Embankment and landfill cover slopes shall be periodically inspected for erosion. The slopes
shall be mowed no more than twice per year. The embankment slopes shall be re-fertilized in
the second year unless vegetation growth is fully adequate. The damaged areas shall be re-
seeded (permanent seeding for embankment slopes and temporary seeding for landfill cover
slopes), fertilized and mulched immediately. Seeding, fertilizing and mulching shall be in
accordance with the Erosion and Sedimentation control plan. Appendix A (BP Barber) presents
all erosion and sedimentation control measures on existing and proposed topography. Appendix
D (BP Barber) includes all relevant calculations and references for erosion and sedimentation
control measures design.

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January 2016

3.13 STORMWATER CONVEYANCE AND MITIGATION

The Town of Harrisburg approved the request for a stormwater exemption in accordance with
the Town of Harrisburg’s Stormwater Ordinance, see letter in Appendix E (BP Barber).
Therefore the facility will not be required to implement structural Stormwater BMPs or prepare
a stormwater impact statement. Stormwater will be transported by vegetative conveyances to
the maximum extent possible.

3.14 OPERATING RECORD AND RECORDKEEPING REQUIREMENTS

The owner and operator will record and retain at the facility or an alternative location
the following information:
- Records for random waste inspections, monitoring results, certifications of
training, and training procedures.
- Amount of recycled material recovered from in-coming waste. (Weighed as
exported from the site). Amount of waste received at the facility and county of
generation.
- Cost estimates for closure and post-closure.
- Notation of date and time of placement of cover material.
- All audit records, compliance records, and inspection reports.

All information contained in the operating record will be furnished to the Division upon request
or made available for inspection by the division. The operating record will also include a copy of
all approved permits and Monitoring Plans.

DRAWINGS

DATE:DWG SCALE:
DRAWN BY:CHECKED BY:APPROVED BY:
PROJECT NO:
FIGURE NO.:
FACILITY MAP
111370.0021"=400'JANUARY 2016
CTH TMG TMG 1
GREENWAY WASTE SOLUTIONS
OF HARRISBURG LLC
PERMIT MODIFICATION
HARRISBURG, NC
REFERENCE
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www.cecinc.com
NORTH

APPENDIX A

Highway 49 C&D Landfill, LLC Compost Facility Application
BP Barber

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TABLE OF CONTENTS

1.0 GENERAL PROVISIONS ...................................................................................................1 
1.1 Project Description ......................................................................................................1 
1.2 Site Requirements .......................................................................................................2 
2.0 FACILITY DESIGN .............................................................................................................2 
2.1 Site Development ........................................................................................................2 
3.0 DESIGN REPORT................................................................................................................3 
3.1 Design Capacity ..........................................................................................................3 
3.2 Material Processing .....................................................................................................3 
3.3 Temperature Monitoring .............................................................................................4 
3.4 Temperature Control ...................................................................................................5 
3.5 Service Area ................................................................................................................5 
3.6 Equipment Requirements ............................................................................................6 
4.0 CONTAINMENT AND ENVIRONMENTAL CONTROL SYSTEM ............................6 
4.1 Groundwater Considerations ......................................................................................6 
4.2 Controlling Nuisances and Vectors ............................................................................6 
5.0 C&D LANDFILL DEVELOPMENT, GENERAL OPERATION AND
MAINTENANCE ..................................................................................................................6 
5.1 Plan and Permit Requirements ....................................................................................6 
5.2 Hours of Operation .....................................................................................................7 
5.3 Drop-Off Area .............................................................................................................7 
5.4 Windrow Processing ...................................................................................................7 
5.5 Adverse Weather Conditions ......................................................................................8 
5.6 Flow Diagram .............................................................................................................8 
5.7 Contingency Plan ........................................................................................................8 
6.0 Facility Operation .................................................................................................................8 
6.1 Training of Facility Personnel ....................................................................................8 
6.2 Entrance ......................................................................................................................9 
6.3 Access and Security ....................................................................................................9 
6.4 Signs ..........................................................................................................................10 
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6.5 Waste Acceptance .....................................................................................................10 
6.6 Dust, Litter, Odors, and Vectors ...............................................................................11 
6.7 Landscaping Maintenance ........................................................................................11 

Highway 49 C&D Landfill, LLC Compost Facility Application
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1.0 GENERAL PROVISIONS

1.1 Project Description

This Application to renew the Type 1 Composting Facility permit for the Highway 49
C&D Landfill is being submitted by BP Barber on behalf of Highway 49 C&D Landfill,
LLC. This application meets the composting facility design parameters, contraction
requirements, and design drawing requirements found in Section .1400 of 15A NCAC 13B
of the North Carolina Department of Environment and Natural Resources (NCDENR) Solid
Waste Management Rules. This application package includes information regarding the site
design, construction and operation.

Project Title: Highway 49 C&D Landfill Composting Facility

Owner: Highway 49 C&D Landfill, LLC
19109 West Catawba Avenue Suite 200
Cornelius, North Carolina 28031
[phone]

Owner's Representative: Mike Griffin

Consulting Engineer: BP Barber
5900 Northwoods Business Parkway
Suite O
Charlotte, NC 28269-7511

Consulting Engineer’s
Representative:

Adam C. Way, P.E.

Proposed Site Operator: Highway 49 C&D Landfill, LLC
19109 West Catawba Avenue Suite 118
Cornelius, North Carolina 28031
[phone]

Operator’s Representative: Ronald Gilkerson

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The Highway 49 C&D Landfill Composting Facility is located at 2105 Speedrail
Court, in Harrisburg, NC. Renewal for the composting permit is being sought. The
composting facility will be relocated as shown on the Site Plan in Appendix A, and consists
of land totaling 5 acres. Access to the site is provided via Speedrail Court. The property is
owned by C&D Management, LLC, and the facility will be operated by Highway 49 C&D
Landfill, LLC. Mr. Ronald Gilkerson (Telephone [phone]) will be responsible for
daily operations.

1.2 Site Requirements

The composting facility will not be located over a closed-out disposal facility. This
can be confirmed by viewing the Site Plan in Appendix A. The surrounding area consists of
woods and vegetation. Existing ground surface elevations of the proposed composting area
range from 608 to 640 feet, mean sea level (MSL). The property surrounding the
composting area is owned by the Highway 49 C&D Landfill and others. The applicable
buffer requirements are met (see Site Development section 2.1 below) where the composting
facility is surrounded by others.

2.0 FACILITY DESIGN

2.1 Site Development

The site is not currently located within an existing flood plain, nor shall the proposed
design result in washout of solid waste such as to pose a hazard to human life, wildlife, land
or water resources. The composting facility will be located, as required, fifty (50) feet from
any property boundary delineating parcels of land not owned by Highway 49 C&D Landfill.
A two hundred (200) foot minimum buffer between compost areas and residences or
dwellings not owned or occupied by the permittee will be maintained at all times. A fifty
(50) foot buffer zone will be maintained between the composting area and perennial
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streams/rivers. A twenty-five (25) foot minimum buffer will be maintained between
compost areas and swales or berms to allow for adequate access of fire fighting equipment.
The composting facility shall be located in accordance with 15A NCAC 2B .0200,
Classification and Water Quality Standards Applicable to Surface Waters in North Carolina.
The site will not cause a discharge of materials or fill materials into waters of the State that
would be in violation of Section(s) 404, and 402 of the Clean water Act, or in violation of the
requirements of the National Pollutant Discharge Elimination System (NPDES). The site will
not cause non-point source pollution of waters of the state that violates assigned water
quality standards.
The site shall not contravene groundwater standards as established under 15A NCAC
2L. The portion of the site designated for active composting will have a soil texture finer
than loamy sand, and a depth to the seasonal high water table shall be maintained of at least
twelve (12) inches, (Type 1 facility).

3.0 DESIGN REPORT

3.1 Design Capacity
The design capacity of the facility is approximately 20,000 cubic yards per year.

3.2 Material Processing
This section provides general material processing information. Detailed operations
are illustrated on the flow diagram on Page 12 of this report.
Compost (grass clippings and loose leaves)
Grass clippings generated by the Town of Harrisburg will be received free of charge,
unless other agreements are made. All material shall be transported through the scales for
weighing verification. The material will then be transported to the drop-off area for
unloading. The grass clippings and leaves will be segregated in compost windrows. Product
mixing will include some soil and mulch fines to enhance nitrification. The compost
produced will be available to the Town of Harrisburg or Cabarrus County residents free of
charge.
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Land-clearing debris (tree limbs, tree stumps, etc.)
Land-clearing debris will be transported in bulk loads and weighed at the scale house.
The material will then be transported to the drop-off areas. The debris will be routed to
temporary stockpiles in the reprocessing areas. This debris material will also be stored in
windrows for proper management. The material will be scheduled for grinding every quarter
or when windrow storage capacity reaches 3,000 cubic yards. A tub grinder will be
transported to the site to produce mulch from the material. The mulch products will then be
placed in the windrows for storage. All windrow mulch products will be power screened for
fines separation and topsoil generation. The mulch produced will be used on-site to
supplement erosion control measures. As with the compost produced, the mulch material will
be offered to the Town of Harrisburg and local residents of Cabarrus County free of charge.
Soil from land-clearing debris
Topsoil from root balls of stumps will be removed prior to grinding and stockpiled
separately. The fines from mulch screening will be mixed with the topsoil removed from the
root balls, and power screened to refine the product type. The material will then be
windrowed for storage. This material will be used to improve cover soils for hydro-seeding.
Also, some of the topsoil products will be offered to the Town of Harrisburg and local
residents for use in landscaping.
Aggregate (Crushed inert debris such as brick, block, concrete, etc.)
Segregated loads of clean inert debris will be weighed at the scalehouse and
transported to the temporary storage areas. This material is not to be placed in the windrows.
This material will be scheduled for processing every quarter, or when storage capacity
reaches 2,000 cubic yards. A Bohringer Eagle rock crusher, which is rated at less than 100
tons per hour, will be used for processing inert materials. This product will be used on-site
for construction of the haul roads.

3.3 Temperature Monitoring
The compost is monitored on a monthly basis for temperature. For compost
windrows that have been in storage for thirty (30) days or longer, the temperature is to be
monitored on a weekly basis. The temperature probes will be placed in the compost to
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document and measure temperature generations. The recorded temperature will be used to
ensure that the minimum temperature of 131º F for three (3) days is maintained for the
compost. Should the recorded temperature fall below the 131º F temperature specified,
pathogen testing will be performed to ensure pathogen levels are in the required range.
The procedure utilized for temperature recording is random testing of all stored
compost in windrows at the frequencies mentioned above. Each composting windrow will be
monitored with a compost thermometer, which has a 48-inch probe to ensure that all areas
inside the windrow can be measured. Each probe measurement will be obtained at fifty (50)
foot intervals utilizing the full length of the probe. Each probe will be monitored for a period
of approximately five minutes, or until the temperature reading has stabilized. Each
monitoring event will be recorded on a monitoring chart. The probe will be verified twice
daily at the same location for temperature recordation. If necessary, additional windrow
turning will be performed for the compost to bring the temperature up to the required 131º F
for three days.

3.4 Temperature Control
Windrow turning is performed on the compost once to twice monthly. The compost is
turned using a front-end loader. If temperatures for the compost windrows fall below the
131º F required for three days, additional windrow turning will be performed.
In addition to windrow turning, adding a mixture of grass clippings with the wood
chips and leaves will increase biodegradation. If additional turning does not bring
temperatures to the desired range, ammonium nitrate may be added to improve
biodegradation.

3.5 Service Area
The Highway 49 C&D Landfill composting will continue to service Cabarrus,
Mecklenburg, Union, Stanly, and Rowan Counties.

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3.6 Equipment Requirements
The facility will be operated with equipment used by the facility owner to maintain
and operate the existing C&D landfill.

4.0 CONTAINMENT AND ENVIRONMENTAL CONTROL SYSTEM

4.1 Groundwater Considerations
A minimum of twelve (12) inches will be maintained to the seasonal high water table.

4.2 Controlling Nuisances and Vectors
Potential nuisances affecting the area surrounding the landfill’s composting facility
include odor, dust, fires, blowing litter, sedimentation, and vectors. Potential vectors include
rodents, birds, and other scavengers.
A water truck will be used to control dust emissions on borrow areas, haul roads and
at the working face. This equipment will be used on an as-needed basis.
Open burning is not permitted at the landfill. In the event of a fire in the debris, the
burning materials will be covered with a soil cover if the fire is deemed manageable. If the
fire is determined to be unmanageable for landfill personnel, the local fire department will be
notified. Fences will be used to control blowing litter. Routine inspection and policing of
the facility will be conducted to ensure that litter will not pose a nuisance or hazard.
Odors and vectors are not expected to be problematic.

5.0 C&D LANDFILL DEVELOPMENT, GENERAL OPERATION AND
MAINTENANCE

5.1 Plan and Permit Requirements
All construction documents and plans of the permit shall be followed. A copy of the
plans, permits, and operational reports shall be maintained at the office at all times.

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5.2 Hours of Operation
The Highway 49 C&D Landfill and its composting facility will maintain operating
hours between 7:30 AM and 5:30 PM Monday through Saturday. Saturday hours may be
reduced depending on waste stream. The facility will be closed on the following holidays:

New Year’s Day Labor Day
Memorial Day Thanksgiving Day
Independence Day Christmas Day

A sign or signs identifying the owner, operator, telephone number, NCDENR permit
number, types of waste accepted and the landfill operating hours will be posted at the
entrance to the landfill.

5.3 Drop-Off Area
The drop-off area will be located within the composting areal limits, which are shown
on the Site Plan in Appendix A. Material is to be separated at the drop-off area by type.
Signs designating the types of material such as “Grass Clippings and Leaves,” “Land
Clearing Debris,” “Topsoil” and “Aggregate” shall be posted at the drop-off area.
An inspector shall be located at the drop-off area to inspect each incoming load.
Waste that does not meet the criteria for the acceptable materials shall be disposed of in an
on-site waste container for future disposal at a permitted municipal solid waste landfill.

5.4 Windrow Processing
The majority of material that is stored in the windrows does not require turning. The
compost itself takes an extended period to process. The windrows containing compost are to
be turned once to twice monthly. The composting matter is to remain in the windrows for
approximately three to six months for aging prior to use.

Highway 49 C&D Landfill, LLC Compost Facility Application
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5.5 Adverse Weather Conditions
Processing, loading, and storage of mulch, aggregate, and compost are done
regardless of the weather conditions. The topsoil products may require covered storage.
The drop-off area and entrance have all-weather roadways. The roadways shall be
kept clear during periods of snowfall. Tub grinding and screening may be stopped during
periods of high winds, should dust become an issue. Dust shall be controlled on the
roadways as described in Section 6.6.

5.6 Flow Diagram
Please refer to the attached Flow Diagram on Page 12 of this report.

5.7 Contingency Plan
Should an instance of on-site equipment failure or temporary shut down of the
facility occur, all incoming loads of material shall be stockpiled at the drop-off area.
Overflow stockpiling is available in the previously approved composting area.
On-site, no open burning of material is permitted. Should accidental fires occur,
equipment and stockpiled soil shall be provided to control them. Any occurrence of fire at
the facility shall be reported to the NCDENR Division of Waste Management within 24
hours, and written notification shall be submitted by the Operations Manager within 15 days.
Should a fire occur at the facility, the local fire department (Harrisburg Fire
Department) shall be notified. Loads that are hot shall be removed immediately and placed
away from the facility and the fire department shall be notified. Said loads shall be sprayed
down with water until the fire and/or combustion is extinguished. The load shall then be
reloaded for disposal in the landfill. The Harrisburg Fire Department is aware of this
proposed facility. Should a fire occur they have agreed to respond to the site.

6.0 Facility Operation

6.1 Training of Facility Personnel
The proposed management team and site operation staff are properly trained to
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BP Barber

9
execute important tasks such as the following:

1. Monitoring of incoming wastes
2. Identification of unauthorized wastes
3. Accurate recording of accepted wastes
4. Safe equipment operation

The management team includes Mr. Larry Griffin, Sr. of Griffin Brothers, owner, and
Mr. Ronald C. Gilkerson, Site Geologist.

6.2 Entrance
The existing entrance and haul roads for the Highway 49 C&D Landfill will be used
to access the Highway 49 C&D Landfill Composting Facility.

6.3 Access and Security
The site has controlled access with the use of entrance gates. The entrance gates
allow entry to the currently operating landfill located to the west of the composting facility.
The same entrance will be used for access to the composting facility, and will remain gated.
Access to the composting facility is restricted to the entrance gate only. Coddle Creek
prevents access to the site from the north and the east, while the currently operating landfill
(with fencing and wooded buffer) prevents access from the west. Access to the site from the
south is also restricted by a wooded buffer. Access roads are all-weather construction and
will be maintained in good condition.
A scalehouse is located at the entrance with an attendant present during operational
hours. The attendant is responsible for evaluating loads to assure compliance with operation
requirements and to direct the loads to the appropriate location on site—landfill,
recycling/processing area, or composting facility. In addition, signs are posted to direct
loads to the appropriate area.
Dust is controlled on access roads through the use of a water truck. Signs are posted
indicating that liquid, hazardous, and municipal wastes are prohibited.
Highway 49 C&D Landfill, LLC Compost Facility Application
BP Barber

10
6.4 Signs
Existing signs are provided at the existing site entrance and show the contact name,
telephone number, permit number, and the landfill operating hours. Information on disposal
procedures and wastes that cannot be accepted is also provided. Traffic signs will be
provided as needed to direct customers and to promote orderly traffic flow to and from the
disposal areas.

6.5 Waste Acceptance
The Highway 49 C&D Landfill Compost Facility will accept yard trash as defined in
30A-290(a)(45) (solid waste consisting solely of vegetative matter resulting from
landscaping maintenance). All yard trash will be composted. The following waste will be
accepted:

1. Grass clippings, loose leaves, etc.
2. Tree limbs, stumps, etc.
3. Soil from land clearing debris
4. Aggregate (crushed inert debris such as brick, block, or concrete)

The Highway 49 C&D Landfill Compost Facility cannot accept the following wastes.
Further, the following wastes can not be processed into the compost:

1. Hazardous waste nor asbestos containing waste
2. Household hazardous waste
3. Any compost made from solid waste

The Operations Manager will notify the NCDENR Division of Waste Management
within twenty-four (24) hours of an attempt to dispose of any of the forbidden waste
products.

Highway 49 C&D Landfill, LLC Compost Facility Application
BP Barber

11
6.6 Dust, Litter, Odors, and Vectors
Dust, litter, odors, and vectors are discussed in Section 4.2. Dust generated by
composting operation will be controlled or reduced by:

1. Application of water via the irrigation system provided along the existing access road
or by using a water truck.
2. Regular removal of mud and dirt from the paved roads.
3. Vegetating of final cover and borrow areas as soon as practical.

Blowing litter will be reduced or controlled by:

1. Limiting the size of the active working area.
2. Utilization of litter fences.
3. Policing of the area.

Odors and vectors are not expected to be problematic.

If environmental problems associated with the landfill are detected and confirmed by
NCDENR, Highway 49 C&D Landfill, LLC will submit to NCDENR for review and
approval a corrective action plan and a schedule of compliance for implementing the plan.

6.7 Landscaping Maintenance
Landscaping maintenance will include the existing entrance. An irrigation system is
used to water the grassed and planted areas. Grass is mowed as needed and any distressed
areas will be fertilized or replanted. Planted shrubbery and trees will be fertilized and
mulched at least two (2) times per year.
Highway 49 C&D Landfill, LLC Compost Facility Application
BP Barber

12

Flow Diagram
Station 1 - Recycling & Reprocessing Drop-off Area

Station 3 - Mobile Units
(Power Screen, Tub Grinder,
Rock Crusher)

Station 6 - Aggregate Storage Station 2 - Materials Storage

Station 5 Station 4
Compost Windrows Mulch & Topsoil Windrows

______________________________________________________________________________

APPENDIX B
DRAWINGS
______________________________________________________________________________

______________________________________________________________________________

APPENDIX C
CALCULATIONS
______________________________________________________________________________

TACK ON SWALES

Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:8% SLOPE TACK ON SWALE Date:1/12/2016
8% SLOPE TACK ON SWALE 1.76 0.40 5.0 8.05 5.67
* LARGEST DRAINAGE AREA TO SWALE
Rational Runoff
Basin Composite C*Area
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 27 2016
8% TACK ON SWALE
Trapezoidal
Bottom Width (ft) = 2.00
Side Slopes (z:1) = 2.00, 3.00
Total Depth (ft) = 2.00
Invert Elev (ft) = 666.00
Slope (%) = 8.00
N-Value = 0.081
Calculations
Compute by: Known Q
Known Q (cfs) = 5.67
Highlighted
Depth (ft) = 0.59
Q (cfs) = 5.670
Area (sqft)= 2.05
Velocity (ft/s)= 2.77
Wetted Perim (ft) = 5.19
Crit Depth, Yc (ft) = 0.51
Top Width (ft)= 4.95
EGL (ft)= 0.71
0 2 4 6 8 10 12 14 16
Elev (ft)Depth (ft)Section
665.50 -0.50
666.00 0.00
666.50 0.50
667.00 1.00
667.50 1.50
668.00 2.00
668.50 2.50
669.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: 8% TACK ON SWALE
Discharge 5.67
Peak Flow Period 0.08
Channel Slope 0.08
Channel Bottom Width 2
Left Side Slope 2
Right Side Slope 3
Low Flow Liner
Retardance Class C
Vegtation Type Bunch Type
Vegetation Density Fair 50-75%
Soil Type Clay Loam
SC250 - Class C - Bunch Type - Fair 50-75%
Phase Reach DischargeVelocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
SC250
Unvegetated
Straight5.67 cfs 4.63
ft/s
0.41 ft 0.04 3 lbs/ft2 2.03 lbs/ft2 1.48 STABLE E
SC250
Reinforced
Vegetation
Straight5.67 cfs 2.8 ft/s 0.59 ft 0.081 10 lbs/ft2 2.92 lbs/ft2 3.42 STABLE E
Underlying
Substrate
Straight5.67 cfs 2.8 ft/s 0.59 ft -- 0.8 lbs/ft2 0.398 lbs/ft2 2.01 STABLE --
Page 1 of 2
1/27/2016http://www.ecmds.com/print/analysis/77786/77811
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:TOP OF LANDFILL DIVERSION DITCH Date:1/12/2016
TOP OF LANDFILL DIVERSION DITCH 3.81 0.40 5.0 8.05 12.27
*LARGEST DRAINAGE AREA
Rational Runoff
Ditch Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Thursday, Jan 28 2016
TOP OF LANDFILL DIVERSION DITCH
Trapezoidal
Bottom Width (ft) = 6.00
Side Slopes (z:1) = 2.00, 3.00
Total Depth (ft) = 2.50
Invert Elev (ft) = 634.00
Slope (%)= 0.06
N-Value = 0.073
Calculations
Compute by:Known Q
Known Q (cfs) = 12.27
Highlighted
Depth (ft)= 1.94
Q (cfs)= 12.27
Area (sqft)= 21.05
Velocity (ft/s)= 0.58
Wetted Perim (ft) = 16.47
Crit Depth, Yc (ft) = 0.48
Top Width (ft)= 15.70
EGL (ft)= 1.95
0 2 4 6 8 10 12 14 16 18 20 22 24
Elev (ft)Depth (ft)Section
633.50 -0.50
634.00 0.00
634.50 0.50
635.00 1.00
635.50 1.50
636.00 2.00
636.50 2.50
637.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: TOP OF LANDFILL DIVERSION DITCH
Discharge 12.27
Peak Flow Period 0.08
Channel Slope .06
Channel Bottom Width 6
Left Side Slope 2
Right Side Slope 3
Low Flow Liner
Retardance Class C
Vegtation Type Mix (Sod & Bunch)
Vegetation Density Fair 50-75%
Soil Type Clay Loam
SC250 - Class C - Mix (Sod & Bunch) - Fair 50-75%
Phase Reach DischargeVelocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
SC250
Unvegetated
Straight 12.27
cfs
4.43
ft/s
0.4 ft 0.04 3 lbs/ft2 1.48 lbs/ft2 2.02 STABLE E
SC250
Reinforced
Vegetation
Straight 12.27
cfs
2.96
ft/s
0.56 ft 0.073 10 lbs/ft2 2.1 lbs/ft2 4.76 STABLE E
Underlying
Substrate
Straight 12.27
cfs
2.96
ft/s
0.56 ft -- 0.8 lbs/ft2 0.235 lbs/ft2 3.4 STABLE --
Page 1 of 2
1/28/2016http://www.ecmds.com/print/analysis/77786/84842
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Slope Name: TACK ON SWALE OUTSIDE SLOPE
Country United States
State/Region North Carolina
City Charlotte
Annual R Factor 175
Adjusted R Factor 21
Total Slope Length 30
Protection Type Permanent
Protection Period 3
Beginning Month January
Slope Gradient (H:1) 3
Soil Type Clay Loam
K Factor 0.210
Reach 1
Start: 0ft End: 30ft
Vegetation Type: Mix (Both Sod/Bunch)(50-75%)
Material ASL bare ASL mat MSL bare MSL mat Soil Loss
Tolerance
SF Remarks Staple / App
Rate
Estb. Veg. 0.658 in 0.028 in 0 in 0 in 0.03 in 1.085 STABLE --
SC150 0.06 in 0.002 in 0.103 in 0.004 in 0.25 in 71.295 STABLE B
Page 1 of 2
1/28/2016http://www.ecmds.com/print/analysis/77786/77863

DOWNCHUTES

Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:DOWNCHUTE 1 FLOW Date:1/12/2016
DOWNCHUTE 1 3.28 0.40 5.0 8.05 10.56
Rational Runoff
Downchute Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Thursday, Jan 28 2016
DOWNCHUTE 1
Trapezoidal
Bottom Width (ft) = 5.00
Side Slopes (z:1) = 3.00, 3.00
Total Depth (ft) = 2.00
Invert Elev (ft) = 652.00
Slope (%)= 33.00
N-Value = 0.040
Calculations
Compute by:Known Q
Known Q (cfs) = 10.56
Highlighted
Depth (ft)= 0.25
Q (cfs)= 10.56
Area (sqft)= 1.44
Velocity (ft/s)= 7.35
Wetted Perim (ft) = 6.58
Crit Depth, Yc (ft) = 0.47
Top Width (ft)= 6.50
EGL (ft)= 1.09
0 2 4 6 8 10 12 14 16 18 20 22
Elev (ft)Depth (ft)Section
651.50 -0.50
652.00 0.00
652.50 0.50
653.00 1.00
653.50 1.50
654.00 2.00
654.50 2.50
655.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: DOWNCHUTE 1
Discharge 10.56
Peak Flow Period 0.08
Channel Slope 0.33
Channel Bottom Width 5
Left Side Slope 3
Right Side Slope 3
Low Flow Liner
Retardance Class
Vegtation Type
Vegetation Density
Soil Type Clay Loam
Rock Riprap
Phase Reach DischargeVelocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
Rock Riprap
Unvegetated
Straight 10.56
cfs
7.6 ft/s 0.24 ft 0.04 6 lbs/ft2 5 lbs/ft2 1.2 STABLE --
Page 1 of 2
1/28/2016http://www.ecmds.com/print/analysis/77786/78782
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:DOWNCHUTE 2 FLOW Date:1/12/2016
DOWNCHUTE 2 7.84 0.40 5.0 8.05 25.24
Rational Runoff
Downchute Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 27 2016
DOWNCHUTE 2
Trapezoidal
Bottom Width (ft) = 5.00
Side Slopes (z:1) = 3.00, 3.00
Total Depth (ft) = 2.00
Invert Elev (ft) = 650.00
Slope (%) = 33.00
N-Value = 0.040
Calculations
Compute by: Known Q
Known Q (cfs) = 25.24
Highlighted
Depth (ft) = 0.41
Q (cfs) = 25.24
Area (sqft)= 2.55
Velocity (ft/s)= 9.88
Wetted Perim (ft) = 7.59
Crit Depth, Yc (ft) = 0.79
Top Width (ft)= 7.46
EGL (ft)= 1.93
0 2 4 6 8 10 12 14 16 18 20 22
Elev (ft)Depth (ft)Section
649.50 -0.50
650.00 0.00
650.50 0.50
651.00 1.00
651.50 1.50
652.00 2.00
652.50 2.50
653.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: DOWNCHUTE 2
Discharge 25.24
Peak Flow Period 0.08
Channel Slope 0.33
Channel Bottom Width 5
Left Side Slope 3
Right Side Slope 3
Low Flow Liner
Retardance Class
Vegtation Type
Vegetation Density
Soil Type Clay Loam
Rock Riprap
Phase Reach Discharge Velocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
Rock Riprap
Unvegetated
Straight 25.24
cfs
10.18
ft/s
0.4 ft 0.04 9 lbs/ft2 8.24 lbs/ft2 1.09 STABLE --
Page 1 of 2
1/27/2016http://www.ecmds.com/print/analysis/77786/78783
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:DOWNCHUTE 3 FLOW Date:1/12/2016
DOWNCHUTE 3 6.52 0.40 5.0 8.05 20.99
Rational Runoff
Downchute Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 27 2016
DOWNCHUTE 3
Trapezoidal
Bottom Width (ft) = 5.00
Side Slopes (z:1) = 3.00, 3.00
Total Depth (ft) = 2.00
Invert Elev (ft) = 638.00
Slope (%) = 33.00
N-Value = 0.040
Calculations
Compute by: Known Q
Known Q (cfs) = 20.99
Highlighted
Depth (ft) = 0.37
Q (cfs) = 20.99
Area (sqft)= 2.26
Velocity (ft/s)= 9.28
Wetted Perim (ft) = 7.34
Crit Depth, Yc (ft) = 0.71
Top Width (ft)= 7.22
EGL (ft)= 1.71
0 2 4 6 8 10 12 14 16 18 20 22
Elev (ft)Depth (ft)Section
637.50 -0.50
638.00 0.00
638.50 0.50
639.00 1.00
639.50 1.50
640.00 2.00
640.50 2.50
641.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: DOWNCHUTE 3
Discharge 20.99
Peak Flow Period 0.08
Channel Slope 0.33
Channel Bottom Width 5
Left Side Slope 3
Right Side Slope 3
Low Flow Liner
Retardance Class
Vegtation Type
Vegetation Density
Soil Type Clay Loam
Rock Riprap
Phase Reach Discharge Velocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
Rock Riprap
Unvegetated
Straight 20.99
cfs
9.58
ft/s
0.36 ft 0.04 8 lbs/ft2 7.42 lbs/ft2 1.08 STABLE --
Page 1 of 2
1/27/2016http://www.ecmds.com/print/analysis/77786/78785
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:DOWNCHUTE 4 FLOW Date:1/12/2016
DOWNCHUTE 4 0.88 0.40 5.0 8.05 2.83
Rational Runoff
Downchute Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 27 2016
DOWNCHUTE 4
Trapezoidal
Bottom Width (ft) = 5.00
Side Slopes (z:1) = 3.00, 3.00
Total Depth (ft) = 2.00
Invert Elev (ft) = 666.00
Slope (%) = 33.00
N-Value = 0.040
Calculations
Compute by: Known Q
Known Q (cfs) = 2.83
Highlighted
Depth (ft) = 0.12
Q (cfs) = 2.830
Area (sqft)= 0.64
Velocity (ft/s)= 4.40
Wetted Perim (ft) = 5.76
Crit Depth, Yc (ft) = 0.21
Top Width (ft)= 5.72
EGL (ft)= 0.42
0 2 4 6 8 10 12 14 16 18 20 22
Elev (ft)Depth (ft)Section
665.50 -0.50
666.00 0.00
666.50 0.50
667.00 1.00
667.50 1.50
668.00 2.00
668.50 2.50
669.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: DOWNCHUTE 4
Discharge 2.83
Peak Flow Period 0.08
Channel Slope 0.33
Channel Bottom Width 5
Left Side Slope 3
Right Side Slope 3
Low Flow Liner
Retardance Class
Vegtation Type
Vegetation Density
Soil Type Clay Loam
Rock Riprap
Phase Reach DischargeVelocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
Rock Riprap
Unvegetated
Straight2.83 cfs 4.74
ft/s
0.11 ft 0.04 4 lbs/ft2 2.31 lbs/ft2 1.73 STABLE --
Page 1 of 2
1/27/2016http://www.ecmds.com/print/analysis/77786/78792

PERIMETER DITCHES

Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PERIMETER DITCH 1 Date:1/12/2016
PERIMETER DITCH 1 5.68 0.40 5.0 8.05 18.29
Rational Runoff
Ditch Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 27 2016
PERIMETER DITCH 1
Trapezoidal
Bottom Width (ft) = 5.00
Side Slopes (z:1) = 3.00, 3.00
Total Depth (ft) = 2.00
Invert Elev (ft) = 640.00
Slope (%) = 2.50
N-Value = 0.067
Calculations
Compute by: Known Q
Known Q (cfs) = 18.29
Highlighted
Depth (ft) = 0.91
Q (cfs) = 18.29
Area (sqft)= 7.03
Velocity (ft/s)= 2.60
Wetted Perim (ft) = 10.76
Crit Depth, Yc (ft) = 0.66
Top Width (ft)= 10.46
EGL (ft)= 1.02
0 2 4 6 8 10 12 14 16 18 20 22
Elev (ft)Depth (ft)Section
639.50 -0.50
640.00 0.00
640.50 0.50
641.00 1.00
641.50 1.50
642.00 2.00
642.50 2.50
643.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: PERIMETER DITCH 1
Discharge 18.29
Peak Flow Period 0.08
Channel Slope 0.025
Channel Bottom Width 5
Left Side Slope 3
Right Side Slope 3
Low Flow Liner
Retardance Class C
Vegtation Type Mix (Sod & Bunch)
Vegetation Density Fair 50-75%
Soil Type Clay Loam
SC250 - Class C - Mix (Sod & Bunch) - Fair 50-75%
Phase Reach DischargeVelocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
SC250
Unvegetated
Straight 18.29
cfs
4 ft/s 0.66 ft 0.037 3 lbs/ft2 1.02 lbs/ft2 2.93 STABLE E
SC250
Reinforced
Vegetation
Straight 18.29
cfs
2.63
ft/s
0.9 ft 0.067 10 lbs/ft2 1.41 lbs/ft2 7.1 STABLE E
Underlying
Substrate
Straight 18.29
cfs
2.63
ft/s
0.9 ft -- 0.8 lbs/ft2 0.13 lbs/ft2 6.17 STABLE --
Page 1 of 2
1/28/2016http://www.ecmds.com/print/analysis/77786/77813
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PERIMETER DITCH 2 Date:1/12/2016
PERIMETER DITCH 2 3.58 0.40 5.0 8.05 11.53
Rational Runoff
Ditch Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 27 2016
PERIMETER DITCH 2
Triangular
Side Slopes (z:1) = 3.00, 2.00
Total Depth (ft) = 1.50
Invert Elev (ft) = 575.00
Slope (%) = 8.60
N-Value = 0.054
Calculations
Compute by: Known Q
Known Q (cfs) = 11.53
Highlighted
Depth (ft) = 0.99
Q (cfs) = 11.53
Area (sqft)= 2.45
Velocity (ft/s)= 4.71
Wetted Perim (ft) = 5.34
Crit Depth, Yc (ft) = 1.06
Top Width (ft)= 4.95
EGL (ft)= 1.33
0 1 2 3 4 5 6 7 8 9 10
Elev (ft)Depth (ft)Section
574.50 -0.50
575.00 0.00
575.50 0.50
576.00 1.00
576.50 1.50
577.00 2.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: PERIMETER DITCH 2
Discharge 11.53
Peak Flow Period 0.08
Channel Slope 0.086
Channel Bottom Width 0
Left Side Slope 3
Right Side Slope 2
Low Flow Liner
Retardance Class
Vegtation Type
Vegetation Density
Soil Type Clay Loam
Rock Riprap
Phase Reach Discharge Velocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
Rock Riprap
Unvegetated
Straight 11.53
cfs
4.79
ft/s
0.98 ft 0.054 6 lbs/ft2 5.27 lbs/ft2 1.14 STABLE --
Page 1 of 2
1/27/2016http://www.ecmds.com/print/analysis/77786/78026
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PERIMETER DITCH 3 Date:1/12/2016
PERIMETER DITCH 3 1.50 0.40 5.0 8.05 4.83
Rational Runoff
Basin Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Friday, Jan 15 2016
PERIMETER DITCH 3
Triangular
Side Slopes (z:1) = 3.00, 2.00
Total Depth (ft) = 2.00
Invert Elev (ft) = 560.00
Slope (%)= 3.50
N-Value = 0.090
Calculations
Compute by:Known Q
Known Q (cfs) = 4.83
Highlighted
Depth (ft)= 1.02
Q (cfs)= 4.830
Area (sqft)= 2.60
Velocity (ft/s)= 1.86
Wetted Perim (ft) = 5.51
Crit Depth, Yc (ft) = 0.75
Top Width (ft)= 5.10
EGL (ft)= 1.07
0 1 2 3 4 5 6 7 8 9 10 11 12
Elev (ft)Depth (ft)Section
559.50 -0.50
560.00 0.00
560.50 0.50
561.00 1.00
561.50 1.50
562.00 2.00
562.50 2.50
563.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: PERIMETER DITCH 3
Discharge 4.83
Peak Flow Period 0.08
Channel Slope 0.035
Channel Bottom Width 0
Left Side Slope 3
Right Side Slope 2
Low Flow Liner
Retardance Class C
Vegtation Type Mix (Sod & Bunch)
Vegetation Density Fair 50-75%
Soil Type Clay Loam
Unreinforced Vegetation - Class C - Mix (Sod & Bunch) - Fair 50-75%
Phase Reach DischargeVelocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
Unreinforced
Vegetation
Straight4.83 cfs 1.87
ft/s
1.02 ft 0.09 4.2 lbs/ft2 2.22 lbs/ft2 1.89 STABLE --
Underlying
Substrate
Straight4.83 cfs 1.87
ft/s
1.02 ft -- 0.05 lbs/ft2 0.027 lbs/ft2 1.88 STABLE --
Page 1 of 2
1/15/2016http://www.ecmds.com/print/analysis/77786/78389
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PERIMETER DITCH 4 Date:1/12/2016
PERIMETER DITCH 4 8.35 0.40 5.0 8.05 26.89
Rational Runoff
Ditch Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 27 2016
PERIMETER DITCH 4
Triangular
Side Slopes (z:1) = 3.00, 2.00
Total Depth (ft) = 2.50
Invert Elev (ft) = 554.00
Slope (%) = 3.50
N-Value = 0.053
Calculations
Compute by: Known Q
Known Q (cfs) = 26.89
Highlighted
Depth (ft) = 1.59
Q (cfs) = 26.89
Area (sqft)= 6.32
Velocity (ft/s)= 4.25
Wetted Perim (ft) = 8.58
Crit Depth, Yc (ft) = 1.49
Top Width (ft)= 7.95
EGL (ft)= 1.87
0 2 4 6 8 10 12 14 16 18
Elev (ft)Depth (ft)Section
553.50 -0.50
554.00 0.00
554.50 0.50
555.00 1.00
555.50 1.50
556.00 2.00
556.50 2.50
557.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: PERIMETER DITCH 4
Discharge 26.89
Peak Flow Period 0.08
Channel Slope 0.035
Channel Bottom Width 0
Left Side Slope 3
Right Side Slope 2
Low Flow Liner
Retardance Class C
Vegtation Type Mix (Sod & Bunch)
Vegetation Density Fair 50-75%
Soil Type Clay Loam
SC250 - Class C - Mix (Sod & Bunch) - Fair 50-75%
Phase Reach DischargeVelocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
SC250
Unvegetated
Straight 26.89
cfs
7.26
ft/s
1.22 ft 0.026 3 lbs/ft2 2.66 lbs/ft2 1.13 STABLE E
SC250
Reinforced
Vegetation
Straight 26.89
cfs
4.27
ft/s
1.59 ft 0.053 10 lbs/ft2 3.46 lbs/ft2 2.89 STABLE E
Underlying
Substrate
Straight 26.89
cfs
4.27
ft/s
1.59 ft -- 0.8 lbs/ft2 0.178 lbs/ft2 4.48 STABLE --
Page 1 of 2
1/27/2016http://www.ecmds.com/print/analysis/77786/78390
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PERIMETER DITCH 5 Date:1/12/2016
PERIMETER DITCH 5 10.53 0.40 5.0 8.05 33.91
Rational Runoff
Ditch Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Thursday, Jan 28 2016
PERIMETER DITCH 5
Triangular
Side Slopes (z:1) = 3.00, 2.00
Total Depth (ft) = 2.50
Invert Elev (ft) = 638.00
Slope (%)= 4.76
N-Value = 0.052
Calculations
Compute by:Known Q
Known Q (cfs) = 33.91
Highlighted
Depth (ft)= 1.63
Q (cfs)= 33.91
Area (sqft)= 6.64
Velocity (ft/s)= 5.11
Wetted Perim (ft) = 8.80
Crit Depth, Yc (ft) = 1.63
Top Width (ft)= 8.15
EGL (ft)= 2.04
0 2 4 6 8 10 12 14 16 18
Elev (ft)Depth (ft)Section
637.50 -0.50
638.00 0.00
638.50 0.50
639.00 1.00
639.50 1.50
640.00 2.00
640.50 2.50
641.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: PERIMETER DITCH 5
Discharge 33.91
Peak Flow Period 0.08
Channel Slope 0.0476
Channel Bottom Width 5
Left Side Slope 3
Right Side Slope 2
Low Flow Liner
Retardance Class C
Vegtation Type Mix (Sod & Bunch)
Vegetation Density Fair 50-75%
Soil Type Clay Loam
SC250 - Class C - Mix (Sod & Bunch) - Fair 50-75%
Phase Reach DischargeVelocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
SC250
Unvegetated
Straight 33.91
cfs
6.44
ft/s
0.76 ft 0.035 3 lbs/ft2 2.27 lbs/ft2 1.32 STABLE E
SC250
Reinforced
Vegetation
Straight 33.91
cfs
4.9 ft/s 0.94 ft 0.052 10 lbs/ft2 2.8 lbs/ft2 3.58 STABLE E
Underlying
Substrate
Straight 33.91
cfs
4.9 ft/s 0.94 ft -- 0.8 lbs/ft2 0.417 lbs/ft2 1.92 STABLE --
Page 1 of 2
1/28/2016http://www.ecmds.com/print/analysis/77786/78388
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PERIMETER DITCH 5 Date:1/12/2016
PERIMETER DITCH 6 0.34 0.40 5.0 8.05 1.09
Rational Runoff
Ditch Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 20 2016
PERIMETER DITCH 6
Triangular
Side Slopes (z:1) = 3.00, 2.00
Total Depth (ft) = 2.00
Invert Elev (ft) = 554.00
Slope (%) = 3.50
N-Value = 0.159
Calculations
Compute by: Known Q
Known Q (cfs) = 1.09
Highlighted
Depth (ft) = 0.73
Q (cfs) = 1.090
Area (sqft)= 1.33
Velocity (ft/s)= 0.82
Wetted Perim (ft) = 3.94
Crit Depth, Yc (ft) = 0.42
Top Width (ft)= 3.65
EGL (ft)= 0.74
0 1 2 3 4 5 6 7 8 9 10 11 12
Elev (ft)Depth (ft)Section
553.50 -0.50
554.00 0.00
554.50 0.50
555.00 1.00
555.50 1.50
556.00 2.00
556.50 2.50
557.00 3.00
Reach (ft)
Tensar International Corporation
5401 St. Wendel-Cynthiana Road
Poseyville, Indiana 47633
Tel. [phone]
Fax [phone]
www.nagreen.com
Erosion Control Materials Design Software
Version 5.0
Project Name: PERMIT MOD
Project Number: 77786
Project Location: HARRISBURG, NORTH CAROLINA
Channel Name: PERIMETER DITCH 6
Discharge 1.09
Peak Flow Period 0.08
Channel Slope 0.035
Channel Bottom Width 0
Left Side Slope 3
Right Side Slope 2
Low Flow Liner
Retardance Class C
Vegtation Type Mix (Sod & Bunch)
Vegetation Density Fair 50-75%
Soil Type Clay Loam
Unreinforced Vegetation - Class C - Mix (Sod & Bunch) - Fair 50-75%
Phase Reach DischargeVelocity Normal
Depth
Mannings
N
Permissible
Shear Stress
Calculated
Shear Stress
Safety
Factor
Remarks Staple
Pattern
Unreinforced
Vegetation
Straight1.09 cfs 0.84
ft/s
0.72 ft 0.159 4.2 lbs/ft2 1.57 lbs/ft2 2.67 STABLE --
Underlying
Substrate
Straight1.09 cfs 0.84
ft/s
0.72 ft -- 0.05 lbs/ft2 0.006 lbs/ft2 8.26 STABLE --
Page 1 of 2
1/20/2016http://www.ecmds.com/print/analysis/77786/84439

STORMWATER PIPES

Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PIPE 1 Date:1/12/2016
PIPE 1 5.68 0.40 5.0 8.05 18.29
Rational Runoff
Pipe Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Culvert Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 27 2016
PIPE 1
Invert Elev Dn (ft) = 588.76
Pipe Length (ft) = 83.00
Slope (%) = 1.51
Invert Elev Up (ft) = 590.01
Rise (in) = 24.0
Shape = Circular
Span (in) = 24.0
No. Barrels = 1
n-Value = 0.013
Culvert Type = Circular Concrete
Culvert Entrance = Square edge w/headwall (C)
Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5
Embankment
Top Elevation (ft) = 596.00
Top Width (ft) = 25.00
Crest Width (ft) = 10.00
Calculations
Qmin (cfs) = 0.00
Qmax (cfs) = 18.29
Tailwater Elev (ft) = (dc+D)/2
Highlighted
Qtotal (cfs) = 18.00
Qpipe (cfs) = 18.00
Qovertop (cfs) = 0.00
Veloc Dn (ft/s) = 6.14
Veloc Up (ft/s) = 6.99
HGL Dn (ft) = 590.52
HGL Up (ft) = 591.54
Hw Elev (ft) = 592.64
Hw/D (ft) = 1.32
Flow Regime = Inlet Control
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PIPE 2 Date:1/12/2016
PIPE 2 1.50 0.40 5.0 8.05 4.83
Rational Runoff
Pipe Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Culvert Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Monday, Jan 18 2016
PIPE 2
Invert Elev Dn (ft) = 552.00
Pipe Length (ft) = 42.00
Slope (%) = 9.52
Invert Elev Up (ft) = 556.00
Rise (in) = 18.0
Shape = Circular
Span (in) = 18.0
No. Barrels = 1
n-Value = 0.013
Culvert Type = Circular Concrete
Culvert Entrance = Square edge w/headwall (C)
Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5
Embankment
Top Elevation (ft) = 558.00
Top Width (ft) = 28.50
Crest Width (ft) = 10.00
Calculations
Qmin (cfs) = 0.00
Qmax (cfs) = 4.83
Tailwater Elev (ft) = (dc+D)/2
Highlighted
Qtotal (cfs) = 4.65
Qpipe (cfs) = 4.65
Qovertop (cfs) = 0.00
Veloc Dn (ft/s) = 3.16
Veloc Up (ft/s) = 4.65
HGL Dn (ft) = 553.16
HGL Up (ft) = 556.83
Hw Elev (ft) = 557.16
Hw/D (ft) = 0.77
Flow Regime = Inlet Control
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PIPE 3 Date:1/12/2016
PIPE 3 8.69 0.40 5.0 8.05 27.98
Rational Runoff
PIPE Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Culvert Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Wednesday, Jan 27 2016
PIPE 3
Invert Elev Dn (ft) = 548.00
Pipe Length (ft) = 45.00
Slope (%) = 3.33
Invert Elev Up (ft) = 549.50
Rise (in) = 36.0
Shape = Circular
Span (in) = 36.0
No. Barrels = 1
n-Value = 0.013
Culvert Type = Circular Concrete
Culvert Entrance = Square edge w/headwall (C)
Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5
Embankment
Top Elevation (ft) = 554.00
Top Width (ft) = 30.00
Crest Width (ft) = 10.00
Calculations
Qmin (cfs) = 0.00
Qmax (cfs) = 27.98
Tailwater Elev (ft) = (dc+D)/2
Highlighted
Qtotal (cfs) = 27.95
Qpipe (cfs) = 27.95
Qovertop (cfs) = 0.00
Veloc Dn (ft/s) = 4.70
Veloc Up (ft/s) = 6.72
HGL Dn (ft) = 550.35
HGL Up (ft) = 551.21
Hw Elev (ft) = 552.01
Hw/D (ft) = 0.84
Flow Regime = Inlet Control
Civil & Environmental Consultants, Inc.
By:CTH
Project Name:HIGHWAY 49 Date:1/12/2016
CEC Project No.:111-370.002 Checked By:NTB
Description:PIPE 4 Date:1/12/2016
PIPE 4 10.53 0.40 5.0 8.05 33.91
Rational Runoff
Ditch Composite CArea
(acres)
Flow, Q
(cfs)
Intensity, I
(in/hr)
Time of
Concentration, Tc
(min)
Culvert Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Thursday, Jan 28 2016
PIPE 4
Invert Elev Dn (ft) = 548.00
Pipe Length (ft) = 85.00
Slope (%)= 12.94
Invert Elev Up (ft) = 559.00
Rise (in)= 36.0
Shape = Circular
Span (in)= 36.0
No. Barrels = 1
n-Value = 0.013
Culvert Type = Circular Concrete
Culvert Entrance = Square edge w/headwall (C)
Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5
Embankment
Top Elevation (ft) = 564.00
Top Width (ft)= 30.00
Crest Width (ft) = 10.00
Calculations
Qmin (cfs)= 0.00
Qmax (cfs)= 33.91
Tailwater Elev (ft) = (dc+D)/2
Highlighted
Qtotal (cfs)= 30.10
Qpipe (cfs)= 30.10
Qovertop (cfs) = 0.00
Veloc Dn (ft/s) = 4.99
Veloc Up (ft/s) = 6.91
HGL Dn (ft)= 550.39
HGL Up (ft)= 560.78
Hw Elev (ft)= 561.50
Hw/D (ft)= 0.83
Flow Regime = Inlet Control
NOAA Atlas 14, Volume 2, Version 3
Location name: Harrisburg, North Carolina, US*
Latitude: 35.3262°, Longitude: -80.6451°
Elevation: 590 ft*
* source: Google Maps
POINT PRECIPITATION FREQUENCY ESTIMATES
G.M. Bonnin, D. Martin, B. Lin, T. Parzybok, M.Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland
PF_tabular | PF_graphical | Maps_&_aerials
PF tabular
PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches/hour)1
Duration Average recurrence interval (years)
1 2 5 10 25 50 100 200 500 1000
5-min 4.81
(4.44-5.22)
5.69
(5.24-6.19)
6.62
(6.10-7.20)
7.30
(6.70-7.91)
8.05
(7.36-8.71)
8.57
(7.79-9.28)
9.04
(8.18-9.78)
9.46
(8.51-10.2)
9.91
(8.83-10.8)
10.2
(9.04-11.1)
10-min 3.85
(3.55-4.17)
4.55
(4.20-4.95)
5.30
(4.88-5.76)
5.83
(5.35-6.32)
6.41
(5.86-6.94)
6.82
(6.20-7.39)
7.18
(6.50-7.77)
7.49
(6.74-8.12)
7.84
(6.98-8.51)
8.06
(7.12-8.77)
15-min 3.20
(2.96-3.48)
3.81
(3.52-4.15)
4.48
(4.12-4.86)
4.92
(4.52-5.33)
5.42
(4.96-5.87)
5.76
(5.24-6.23)
6.05
(5.48-6.55)
6.30
(5.67-6.83)
6.58
(5.86-7.14)
6.74
(5.96-7.34)
30-min 2.20
(2.03-2.38)
2.63
(2.43-2.86)
3.18
(2.93-3.45)
3.56
(3.27-3.86)
4.01
(3.67-4.35)
4.34
(3.94-4.69)
4.63
(4.19-5.02)
4.91
(4.41-5.31)
5.23
(4.66-5.68)
5.46
(4.82-5.94)
60-min 1.37
(1.26-1.49)
1.65
(1.52-1.80)
2.04
(1.88-2.21)
2.32
(2.13-2.51)
2.67
(2.44-2.89)
2.94
(2.67-3.18)
3.19
(2.89-3.45)
3.44
(3.09-3.73)
3.75
(3.34-4.08)
3.98
(3.52-4.34)
2-hr 0.794
(0.729-0.867)
0.962
(0.882-1.05)
1.19
(1.09-1.30)
1.37
(1.25-1.49)
1.59
(1.45-1.74)
1.77
(1.60-1.92)
1.94
(1.74-2.11)
2.10
(1.87-2.29)
2.32
(2.05-2.54)
2.49
(2.17-2.72)
3-hr 0.566
(0.519-0.620)
0.683
(0.627-0.749)
0.853
(0.781-0.935)
0.984
(0.897-1.07)
1.16
(1.05-1.26)
1.30
(1.17-1.41)
1.44
(1.29-1.56)
1.58
(1.40-1.72)
1.77
(1.55-1.93)
1.92
(1.66-2.10)
6-hr 0.343
(0.315-0.375)
0.414
(0.380-0.453)
0.517
(0.474-0.565)
0.597
(0.546-0.652)
0.706
(0.641-0.768)
0.792
(0.715-0.861)
0.880
(0.787-0.957)
0.969
(0.859-1.06)
1.09
(0.956-1.19)
1.19
(1.03-1.30)
12-hr 0.202
(0.186-0.221)
0.244
(0.225-0.267)
0.306
(0.281-0.334)
0.356
(0.325-0.388)
0.423
(0.384-0.460)
0.477
(0.430-0.518)
0.533
(0.476-0.578)
0.592
(0.522-0.641)
0.673
(0.585-0.728)
0.738
(0.632-0.799)
24-hr 0.120
(0.111-0.129)
0.144
(0.135-0.156)
0.181
(0.169-0.196)
0.210
(0.195-0.227)
0.250
(0.231-0.269)
0.281
(0.260-0.303)
0.313
(0.289-0.337)
0.347
(0.318-0.373)
0.392
(0.358-0.423)
0.428
(0.390-0.462)
2-day 0.070
(0.065-0.075)
0.085
(0.079-0.091)
0.105
(0.098-0.113)
0.122
(0.113-0.131)
0.144
(0.133-0.155)
0.162
(0.149-0.174)
0.180
(0.166-0.193)
0.199
(0.182-0.213)
0.224
(0.205-0.241)
0.244
(0.222-0.263)
3-day 0.050
(0.046-0.053)
0.060
(0.056-0.064)
0.074
(0.069-0.079)
0.085
(0.079-0.091)
0.101
(0.093-0.108)
0.113
(0.104-0.121)
0.125
(0.116-0.135)
0.138
(0.127-0.148)
0.156
(0.143-0.168)
0.170
(0.155-0.183)
4-day 0.039
(0.037-0.042)
0.047
(0.044-0.051)
0.058
(0.054-0.062)
0.067
(0.062-0.072)
0.079
(0.073-0.085)
0.089
(0.082-0.095)
0.098
(0.091-0.105)
0.108
(0.100-0.116)
0.122
(0.112-0.131)
0.133
(0.121-0.143)
7-day 0.026
(0.024-0.028)
0.031
(0.029-0.033)
0.038
(0.035-0.040)
0.043
(0.040-0.046)
0.050
(0.047-0.054)
0.056
(0.052-0.060)
0.062
(0.058-0.066)
0.069
(0.063-0.073)
0.077
(0.071-0.082)
0.084
(0.077-0.090)
10-day 0.021
(0.020-0.022)
0.025
(0.023-0.026)
0.030
(0.028-0.032)
0.034
(0.032-0.036)
0.039
(0.036-0.041)
0.043
(0.040-0.046)
0.047
(0.044-0.050)
0.052
(0.048-0.055)
0.057
(0.053-0.061)
0.062
(0.057-0.066)
20-day 0.014
(0.013-0.015)
0.016
(0.016-0.017)
0.019
(0.018-0.020)
0.022
(0.021-0.023)
0.025
(0.024-0.026)
0.027
(0.026-0.029)
0.030
(0.028-0.032)
0.032
(0.030-0.034)
0.036
(0.033-0.038)
0.039
(0.036-0.041)
30-day 0.011
(0.011-0.012)
0.013
(0.013-0.014)
0.016
(0.015-0.016)
0.017
(0.016-0.018)
0.020
(0.018-0.021)
0.021
(0.020-0.022)
0.023
(0.022-0.024)
0.025
(0.023-0.026)
0.027
(0.025-0.028)
0.029
(0.027-0.030)
45-day 0.010
(0.009-0.010)
0.011
(0.011-0.012)
0.013
(0.012-0.013)
0.014
(0.013-0.015)
0.016
(0.015-0.016)
0.017
(0.016-0.018)
0.018
(0.017-0.019)
0.019
(0.018-0.020)
0.021
(0.020-0.022)
0.022
(0.021-0.023)
60-day 0.009
(0.008-0.009)
0.010
(0.010-0.010)
0.011
(0.011-0.012)
0.012
(0.012-0.013)
0.014
(0.013-0.014)
0.015
(0.014-0.015)
0.016
(0.015-0.016)
0.016
(0.016-0.017)
0.018
(0.017-0.018)
0.019
(0.018-0.019)
1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS).
Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a
given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not
checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values.
Please refer to NOAA Atlas 14 document for more information.
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Map data ©2015 GoogleReport a map error50 km 
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National Weather Service
Office of Hydrologic Development
1325 East West Highway
Silver Spring, MD 20910
Map data ©2015 GoogleReport a map error2 km 
Map data ©2015 GoogleReport a map error2 km