20200681 Ver 1_ESC Report_FINAL_4-14-2020_Rev1_corrected FRO_20200522

EROSION AND SEDIMENT CONTROL PLAN
FOR
BELEWS CREEK STEAM STATION
BC-159 EAST PINE HALL ROAD FUTURE STORMWATER REROUTE
BELEWS CREEK STEAM STATION
STOKES COUNTY, NORTH CAROLINA
Prepared for
April 14, 2020
Issued for Permit Submittal
Prepared by
6000 Fairview Road, Suite 200
Charlotte, NC 28210
704-522-0330
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TABLE OF CONTENTS

GENERAL INFORMATION .................................................................................. 1
Project Narrative ............................................................................................................... 1
Site Description ................................................................................................................. 3
HYDROLOGIC AND HYDRAULIC ANALYSIS ......................................................... 4
Site Survey and Topography .............................................................................................. 4
Soils….. .............................................................................................................................. 4
Hydrologic Design .............................................................................................................. 4
Hydraulic Design ................................................................................................................ 5
Clarifications and Limitations ............................................................................................ 6
ENVIRONMENTAL ............................................................................................ 6
EQUIPMENT .................................................................................................... 7
EROSION AND SEDIMENT CONTROL ................................................................. 7
Erosion & Sediment Control Practices ............................................................................... 7
Construction Schedule ...................................................................................................... 9
Maintenance Plan ........................................................................................................... 10
Bid Specifications Related to Erosion and Sediment Control........................................... 11
01350 Environmental Protection .................................................................................... 11
02370 Erosion and Sediment Control .............................................................................. 15
02920 Site Restoration and Revegetation ....................................................................... 19
VEGETATION PLAN ....................................................................................... 25

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LIST OF FIGURES
Figure 1. BC-159 Site Location and Belews Creek Steam Station Vicinity Map
Figure 2. Belews Creek Steam Station Site and Adjacent Property Map
LIST OF APPENDICES
Appendix A NCDEQ Forms
Appendix B Erosion and Sediment Control Plan – BC159 East Pine Hall Road Stormwater
Reroute
Appendix C Calculations
Appendix D USDA/NRCS Soils Report

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GENERAL INFORMATION
PROJECT NARRATIVE
A. Name of Project – Duke Energy Issue BC-159, East Pine Hall Road Future Stormwater
Reroute
B. Location – (Project Area) Belews Creek Steam Station, Stokes County, NC, Latitude
36.28621 N Longitude 80.06614
C. Ownership – Duke Energy (Refer to Appendix A – Financial Responsibility/Ownership
Form for additional owner information)
D. Description of Development – Installation of approximately 630 ft of 36-inch gravity piping
via jack and bore, and approximately 400 ft of riprap lined discharge channel for rerouting
of stormwater from a portion of an existing approximate 33.5 acre watershed area adjacent
to Pine Hall Road (Refer to Appendix B – Erosion and Sediment Control Details-Belews
Creek Steam Station BC-159 East Pine Hall Road Future Stormwater Reroute).
E. Receiving waterbody & classification – Charlie’s Pond to the Dan River (WS-IV)
F. The Project scope includes:
a. Limited Grading (trenching excavation) for pipeline installations and jacking and
receiving pits, riprap lined discharge channel, rerouting stormwater flows into
Charlie’s Pond.
b. Limits of Disturbance: 3.7 acres

Belews Creek Steam Station (BCSS) is owned and operated by Duke Energy. The BCSS is located
in Stokes County, North Carolina along Belews Lake, a manmade lake constructed on Belews
Creek in the early 1970s. BCSS is a two-unit, coal-fired power generation facility that began
operation in 1974. BCSS’s 2,240 MW capacity makes it one of the largest steam plants in the
Carolinas. A BCSS Vicinity Map (Figure 1) and Site and Adjacent Property Map (Figure 2) are
included below. The site location and project area are pointed-out on these figures.

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Figure 1. BC-159 Site Location and Belews Creek Steam Station Vicinity Map

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Figure 2. Belews Creek Steam Station Site and Adjacent Property Map (project area
south/upstream of Ash Basin)
SITE DESCRIPTION
Duke Energy is planning to construct a system to reroute existing industrial stormwater flows in an
area east of Pine Hall Road (PHR) to prevent future piped discharge into the BCSS Ash Basin. The
project includes rerouting runoff from an estimated 19.4 acres portion of an existing overall 33.5
acres watershed to an isolated nearby water body referred to as Charlie’s Pond. This will be
accomplished by blocking a portion of the existing watershed east of PHR, between the Structural
Fill and The Coal Yard Basin. This area currently drains to the existing 48-inch RCP that is carrying
flows beneath PHR and discharges into the BCSS Ash Basin. Approximately 14.1 acres will
continue discharging stormwater to and through the existing 48-inch RCP into the Ash Basin. The
re-routed surface water in the rerouted 19.4 acres of the subject watershed is planned to be cutoff
with a new concrete head wall and piped through a new 36-inch HDPE pipe for approximately 630
ft. The downstream end of the new 36-inch pipe is planned to terminate and outlet into a riprap lined
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discharge channel to be approximately 400 ft long before discharging into Charlie’s Pond. The
proposed BC-159 construction area is property owned by Duke Energy adjacent to the east side of
PHR and located directly north and west of the existing BCSS Coal Yard Basin. The project area
includes existing asphalt, stone, open grassed, and wooded ground cover. The project area will be
accessed via existing unnamed spur roads off of PHR. No work is planned within the Ash Basin
boundary (immediately west of PHR) for this proposed project.
The total expected land disturbance area anticipated to implement the BC-159 project is
approximately 3.7 acres as mentioned above. Stormwater and erosion and sediment controls have
been designed to support the project and expected land disturbance and construction activities as
described in the section below.
HYDROLOGIC AND HYDRAULIC ANALYSIS
AECOM completed a hydrologic and hydraulic analysis of the pre-construction conditions and the
post-construction conditions for the proposed BC-159 design. This was done to meet the
requirements of the NCG01 stormwater permit and to provide a design that has sufficient capacity
and stability to safely convey the design storm. The analyses completed are detailed below, and
the calculations are provided in Appendix C.
SITE SURVEY AND TOPOGRAPHY
AECOM’s understanding of the existing topography and site features is based on aerial imagery,
LIDAR data, and a number of site surveys. Aerial imagery was provided by Bing Maps, dated 2019,
and supplemented with aerial imagery provided by Fleming Engineering, Inc. (FEI) in October 2019.
Topographic information for the project site is based on North Carolina LIDAR Data, Dated 2007.
The LIDAR data has been supplemented by a ground survey and an aerial LIDAR survey completed
by FEI in September and October 2019, respectively, along with another ground survey that was
conducted by FEI in December 2019 to analyze the drainage divide for the pipeline channel
between the two spur roads. The surveys completed by FEI included recording elevations of the
existing stormwater controls, 48-inch pipeline and catch basins, key site features, and topography
in the BC-159 project area. Existing topography was then overlain with the proposed design
contours for proposed-conditions grading. This existing and proposed topography was then used
as the basis of the hydrologic and hydraulic analyses below.
SOILS
The predominate site and project area soil is classified as Ud, FpB2, FpC2, and FpD2 on the U.S.
Department of Agriculture (USDA) soil survey.
Refer to Appendix D for the USDA/Natural Resources Conservation Service (NRCS) Soils Report.
HYDROLOGIC DESIGN
The 25-year, 24-hour duration storm event has been selected as the design storm for all portions
of the Preferred Option design based on North Carolina Department of Transportation (NCDOT)
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guidelines for minor arterials and local roads outlined in Guidelines for Drainage Studies and
Hydraulic Design (NCDOT, 2016). Rainfall data for the design storm was obtained using
precipitation estimates from National Oceanic and Atmospheric Administration (NOAA)’s
Precipitation Frequency Data Server (PFDS) web tool. Estimates provided by this web tool are
calculated using the NOAA Atlas 14 publication for storms with recurrence intervals ranging
between 1 year and 1,000 years and durations ranging between 5 minutes and 60 days.
AECOM delineated the various subcatchments for the proposed culvert system (which includes the
existing 48-inch RCP pipeline sections that are to remain and the proposed new 36-inch HDPE
pipeline section) in order to determine the peak stormwater runoff during the design storm.
Subcatchment delineation was completed using AutoCAD Civil 3D 2019 based on design
topography and the FEI updated surveys.
AECOM analyzed the peak runoff into and downstream of the proposed new pipeline during the
pre-construction and post-construction conditions using HydroCAD Version 10.00 (HydroCAD).
AECOM estimated an appropriate time of concentration (Tc) for each subcatchment based on the
NRCS publication Urban Hydrology for Small Watersheds, also known as Technical Release 55
(TR-55). TR-55 is used to calculate stormwater volumes, peak discharge, and hydrographs for
subcatchments based on their unique characteristics. A higher T c usually results in a lower peak
discharge and velocity. Similarly, a lower Tc usually results in a higher peak discharge and velocity.
AECOM selected an appropriate curve number (CN) for each subcatchment based on the NRCS
Curve Number Method in TR-55. The two major factors that determine the appropriate curve
number are the hydrologic soil group and the ground cover type. Site soil data used to determine
the hydrologic soil group was obtained from the NRCS Web Soil Survey database. Land use data
used to determine the ground cover type was delineated using aerial photography. While the entire
area downstream of the proposed pipeline currently drains to Charlie’s Pond, AECOM only
considered the area immediately downstream of the proposed pipeline that will drain into the
proposed discharge channel for the comparison between pre-construction and post-construction
conditions. The only difference in peak discharge between the pre-construction and post-
construction conditions is the addition of the peak flows being conveyed by the proposed new
pipeline that will be routed to the proposed discharge channel in the post-construction conditions.
HYDRAULIC DESIGN
The hydraulic performance of the proposed new culvert system was analyzed using HydroCAD and
Bentley CulvertMaster v3.3. CulvertMaster is a program that calculates the discharge capacity and
the headwater of culverts based on their dimensions, mannings n values, and downstream tailwater
depths. A manning’s n value of 0.012 was selected for the proposed new 36-inch HDPE pipeline.
The peak elevation from the HydroCAD model was then compared with the headwater elevation in
CulvertMaster for the peak discharge during the 25-year, 24-hour storm event. The highest
elevation for the 25-year, 24-hour storm was used to determine the top elevation of the planned
concrete headwall at the upstream inlet end of the proposed new 36-inch pipeline. Storm events
larger than the 25-year, 24-hour storm event will overtop this headwall, and the additional flows will
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flow into the existing 48-inch RCP. The top of the planned new concrete headwall is proposed to
be El. 776.01.
A maximum of approximately 50 CFS will discharge through the proposed new 36-inch HDPE
pipeline system during the design storm. The peak upstream flood elevation during the design
storm is approximately El. 775.6. Based on this analysis, AECOM has determined that the
proposed 36-inch HDPE culvert is adequate for the proposed BC-159 design.
AECOM also analyzed the stability of the proposed discharge channel during the design storm
using Hydraulic Toolbox Version 4.4 (Hydraulic Toolbox) based on the peak inflows for the post -
construction conditions as determined in the HydroCAD model. Hydrauli c Toolbox utilizes the
methodology of Hydraulic Engineering Circular No. 15 (HEC 15) to calculate the expected shear
force, velocity, manning’s n roughness values, Froude number, and stability of proposed armoring
based on the channel geometry and peak stormwater inflow values. The minimum stable stone
size was selected for armoring of the proposed discharge channel. NCDOT Class 2 riprap was
selected to armor the proposed discharge channel and a minimum curve radius of 90 ft has been
proposed for the channel curve. A minimum armoring thickness of 1.5*D100 or 36 inches was
proposed for the discharge channel due to the steep slope of 10% leading down to Charlie’s Pond.
All armoring calculations were completed with a calculated safety factor of 1.0 and 1 ft of freeboard
during the design storm event.
CLARIFICATIONS AND LIMITATIONS
The design and calculations provided in this plan are considered to be at a 100% permit level as
discussed herein and noted on attached drawings and have been prepared based on the best
information available to AECOM at the time of submittal. The results and recommendations of the
current design may change based on regulatory review and as new information becomes available.
AECOM does not recommend that this data is used for any other purposes. AECOM does not take
responsibility for any other conclusions reached outside of this report.
ENVIRONMENTAL
Approximately 0.23 acres of wetlands are planned to be impacted during the proposed construction
(0.03 acres impacted by earthwork and an additional 0.20 acres within the LOD). An Army Corps
of Engineers Nationwide Permit (NWP) 7 and an NCDEQ Individual 401 Permit for Outfall
Structures and Associated Intake Structures will be obtained for these impacts. Additionally, since
a new stormwater outfall will be established, an NCDEQ NPDES 402 stormwater permit will also
be obtained. Construction activities will also occur in the non-regulated riparian buffer zone of
Charlie’s Pond; stringent erosion and sediment controls will be incorporated and maintained to be
protective of water quality. No additional environmental sensitive areas are anticipated to be
impacted. Post-construction stormwater runoff discharges will be routed via new stormwater piping
into a the planned new riprap lined discharge channel into Charlie’s Pond. This project primarily
consists of trenching and pipeline installation, and all final grades are planned to match existing

1 All elevations presented in this memorandum are in North American Vertical Datum 1988 (NAVD88), unless noted
otherwise.
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(excepting the discharge channel), thus no significant alterations to existing overland flows are
anticipated. It is noted that cumulative impacts have not triggered a regulatory threshold value to
date.
EQUIPMENT
As a general practice, equipment refueling and lubricating will take place in upland areas that are
more than 125 ft from the edges of site drainage features and water bodies and any downstream
receiving wetlands per the Duke 2019 Environmental Handbook. In certain special cases where the
125 foot separation is not possible, (i.e. water pumps that need to be operated continuously), double
containments will be put in place and spill kits will be maintained near refueling operations. As a
daily practice, onsite equipment and vehicles will undergo inspections, and operators will inspect
all safety and operational features on a pre- and post-shift basis and will also inspect equipment if
scope of work or work locations change. Inspections will include inspecting the integrity of hydraulic
hoses, fittings, and other sources of petroleum products. Duke Energy will require that inspections
results be documented and available for review.
EROSION AND SEDIMENT CONTROL
Erosion and sediment control (E&SC) is being handled by means of perimeter silt fence and
dewatering best management practices as shown in the design plans and details. The majority of
the planned project area and proposed pipeline/channel alignment area is open and grassed and
the remainder is lightly wooded nearing the proposed outfall into Charlie’s Pond. To allow for
channel construction, a limited linear section of tree/shrubs will be cleared along an approximately
30 ft wide by 400 foot length corridor leading from the outfall into Charlie’s Pond upstream to the
west toward the location where the jacking pit will be located. Disturbed ground surfaces will be
stabilized immediately after completion of clearing activities to minimize erosion and sediment
transport into Charlie’s Pond.
EROSION & SEDIMENT CONTROL PRACTICES
The Contractor selected by Duke Energy to complete the BC-159 project work will be familiar with
and have a copy of the North Carolina Department of Environmental Quality (NCDEQ) Erosion and
Sediment Control Planning and Design Manual (referred to herein as ‘Design Manual’) on-site for
reference of the following practices to be installed and maintained throughout the construction
period. The Contractor will also be familiar with 2019 Duke Construction Stormwater Planning and
Design Manual for Environmentally Sensitive Areas.
1. Sediment Fence – Practice 6.62 of Design Manual
Sediment fence (silt fence) will be constructed below disturbed areas as shown on the plans,
which shall include protection for trenching spoils generated and temporarily stockpiled for
the pipeline installations and related construction. Refer to Design Manual Page 5.40 for
overview and 6.62 for standard details and notes. Site specific sediment fence details are
located in Appendix B. These details are also included on the plans.
2. Tree Preservation & Protection – Practice 6.05 of Design Manual
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The Contractor shall protect existing vegetation that has not been identified for removal per
specification Section 02230 – Clearing and Grubbing; flag, barricade and clearly mark
existing plant life and features designated to remain and not be disturbed. Refer to Design
Manual Page 5.12 for overview and Section 6.05 for standard detail and specifications.
Provide and install as directed by Duke Energy.
3. Temporary Dewatering
Prior to and during grading, the Contractor shall temporarily dewater jack and boring pits as
needed and discharge channel construction areas utilizing dewatering geotextile bags to
contain sediment. The bags will be configured on a washed aggregate bed underlain with
geotextile to obtain sheet flow entry into Charlie’s Pond or adjacent vegetated areas, etc.
Polyacrylamide may be introduced to achieve flocculation of suspended sediment into the
bag. Any spoils excavated and stockpiled will be contained with perimeter silt fence and
covered at the end of each work day with a poly tarp or equivalent.
4. Land Grading – Practice 6.02 of Design Manual
Grading includes excavating for the planned pipeline installations and jack and boring pits
and for the discharge channel. The trenching excavations for the pipeline installations and
jack and bore pits will be backfilled back to original site grades and seeded. No additional
grading is required for the planned construction or to bring the site to proposed new grades
(refer to Erosion and Sediment control plans and details in Appendix B). Graded areas will
be stabilized and revegetated per the plans and specifications and the Design Manual.
5. Riprap – Practice 6.15 of Design Manual
In conjunction with discharge channel grading, the Contractor shall place riprap for
permanent channel stabilization to protect against erosion from future stormwater flow into
Charlie’s Pond. Filter socks or silt fences are to be installed and moved upstream of the
completed portions of the proposed discharge channel in order to minimize sediment
discharged downstream into the stabilized channel. A temporary turbidity curtain shall be
in place prior to channel and riprap installation per the Erosion and Sediment Control Plan
Construction Sequence.
6. Temporary Seeding – Practice 6.10 of Design Manual
Provide temporary seeding to stabilize disturbed areas that will not be brought back to final
grade for a period of more than 7 calendar days. Refer to Design Manual Page 5.14 for
overview and Section 6.10 for standard detail and specifications. The Contractor shall abide
by specification Section 02920 – Site Restoration and Revegetation, which pertains directly
to this project.
7. Permanent Seeding – Practice 6.11
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Upon completion of the land disturbing activities, and prior to project closeout, permanent
vegetative cover must be established. Refer to Design Manual Page 5.15 for overview and
Section 6.11 for standard detail and specifications. The Contractor shall abide by
specification Section 02920 – Site Restoration and Revegetation, which pertains directly to
this project.
CONSTRUCTION SEQUENCE
1. E&SC permit and a certificate of coverage (COC) must be obtained before land disturbing
activities occur. The COC can be obtained by filling out the electronic notice of intent (E -
NOI) form at DEQ.NC.GOV/NCGO1.
2. Contact NCDEQ Winston-Salem regional office (336-776-9800) and schedule pre-
construction meeting prior to construction.
3. A rain gauge shall be installed at the project site for monitoring.
4. Delineate limits of disturbance and install construction fence.
5. Install turbidity curtain, silt fence, silt bags, concrete washout pit, construction fencing, and
construction entrances prior to any earth disturbance activities and ensure all required
permits have been obtained for all work within Charlie’s Pond. Delineate and flag all
environmentally sensitive areas (ESAS). No grubbing is to occur within a 50 foot buffer for
streams and wetlands until grading is actively pursued in the immediate area. Disturbance
should be limited as much as possible in all ESAS.
6. Construct access roads and staging and stockpile areas as shown. Soil is to be stockpiled
directly on a grass area upstream of the proposed silt fence. Access roads are to be
constructed in a manner such that areas along the length of the road are only fl ush cut and
subsequently stabilized via installation of composite or timber/crane mats in the same day.
Construction access will extend from the spur road as shown and will be continued to be
constructed downstream along the limits of the proposed discharge channel. All areas
cleared for construction access are to be restabilized and revegetated after construction is
completed.
7. Begin construction of the proposed discharge channel from the downstream end.
Polyacrylamide (PAM) treatment in conjunction with wattles, filter socks, or silt fences are
to be installed and moved upstream of the completed portions of the proposed discharge
channel in order to minimize sediment discharged downstream into the stabilized channel.
The proposed access road will be removed as the proposed discharge channel is
constructed upstream towards the proposed pipeline outlet. The discharge channel is to
be constructed in a manner such that areas are only cleared, grubbed, and grad ed that
are able to be stabilized in the same day. Additional care is to be taken to avoid disturbing
and eroding the native soil when placing riprap below the water level in Charlie’s Pond.
8. Install jack and boring pits after the proposed discharge channel has been constructed and
stabilized with riprap as proposed.
9. Dewater jack and boring pits using proposed silt bag. Silt bag is to be discharged in the
location shown or another vegetated area as approved by Owner and Engineer.
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10. Install the proposed 36” HDPE pipe from the downstream end to MH-1. Remove sediment
from the interior of the pipeline, pressure test the pipeline, and then plug the upstream end
of MH-1 so no stormwater is discharged downstream.
11. Dewater and remove sediment from the jack and boring pits using the silt bags and remove
and backfill the jack and boring pits.
12. Install the proposed 36” HDPE pipe from MH-1 to the upstream end taking care to avoid
allowing any sediment laden stormwater to enter the pipeline.
13. Plug the upstream end of the proposed 36” HDPE pipeline and construct the proposed
concrete headwall at the upstream end taking the necessary precautions to not impact the
liner system and anchor trench for the adjacent Coal Yard Basin.
14. Backfill the pipeline to the pre-construction grades and seed and stabilize all areas
downstream of the proposed pipeline inlet.
15. Continue scheduled inspections and reporting per NCDEQ requirements until permit closure
is received.
16. Ensure that all areas upstream and downstream of the existing 48” RCP and proposed 36”
HDPE pipeline have been seeded and stabilized and that the proposed pipeline is operating
as expected.
17. Remove sediment from the area upstream of the turbidity curtain.
18. After site is stabilized, remove all temporary measures and install permanent vegetation on
the disturbed areas.
19. When the project is complete, the permittees shall contact NCDEQ to close out the E&SC
plan. After NCDEQ informs the permittee of the project closeout via inspection report, the
permittee shall visit DEQ.NC.GOV/NCGO1 to submit an electronic notice of termination (E-
NOT). A $100 annual general permit fee will be charged until the E-NOT has been filled out.
20. Demobilize.
MAINTENANCE PLAN
1. All erosion and sediment control practices will be checked for stability and operation
following every runoff-producing rainfall (rainfall 1.0 inches or greater per 24-hour period)
but in no case less than once a week. All needed repairs shall be made immediately to
maintain all practices as designed. Refer to Design Manual Page 6.64.9 for maintenance
overview.
2. Sediment shall be removed from behind the sediment fencing when it becomes about 1 foot
deep at the fence or exceeds one-half capacity of the fence height. The sediment fence
shall be repaired as necessary to maintain a barrier.
3. All seeded areas will be fertilized, reseeded as necessary, and mulched according to the
plans and specifications to maintain a vigorous, dense vegetative cover.
4. Construction roads shall be maintained throughout the construction period.
5. Provide dust control as directed by Duke Energy.
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BID SPECIFICATIONS RELATED TO EROSION AND SEDIMENT CONTROL
Contractor shall utilize the Awarded Contract Documents for construction. The following is for
reference only.
01350 ENVIRONMENTAL PROTECTION
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Protection of land resources, protection of water resources, abatement of air
pollution, and abatement of noise.
1.2 GENERAL REQUIREMENTS
A. The control of environmental pollution, which could result from construction
operations under this contract, requires consideration of land, water, and air quality
at the site.
B. Contractor shall comply with all applicable federal, state, and local laws and
regulations concerning environmental pollution control or abatement.
C. Duke Energy and Contractor shall establish the criteria for compliance and
administration of the environmental pollution control program prior to
commencement of work.
D. Duke Energy will notify Contractor in writing of any noncompliance with this
specification and the action to be taken. Contractor shall immediately take corrective
action.
1.3 PROTECTION OF LAND RESOURCES
A. Land resources adjacent to the project boundaries shall be preserved in their present
condition or restored to a natural appearance.
B. Contractor shall exercise care in conducting all operations on private property to
minimize the amount of disturbance and damage related to gaining access to and
working at the planned location(s). Contractor shall not injure or destroy trees or
shrubs adjacent to the project site that are not designated to be removed or
disturbed. Construction activities shall be confined within the construction limits
shown on the plans.
C. Contractor shall maintain a stable, clean, workable surface in the construction area.
Contractor will be responsible for purchasing, hauling, and placing stone, if needed.
Contractor shall be responsible for prevention of littering, removal of all trash and
material from the site, and all reasonable preventive measures to maintain all private
property in a condition acceptable to Duke Energy.
D. Contractor shall perform the final restoration of the construction area (e.g., plant
grass). Repairs which are, in the opinion of Duke Energy, required to restore any
land, structures, or appurtenances disturbed or damaged through carelessness,
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negligence, or irresponsible acts on the part of Contractor, or any of their employees,
shall be the sole responsibility of Contractor and will not be paid for by Duke Energy.
Such repairs shall be carried out in a timely manner at the direction of, and to the
satisfaction of Duke Energy.
E. The edges of clearings and cuts through trees, shrubbery, and vegetation shall be
irregularly shaped to soften the undesirable visual impact of straight lines.
Movement of crews and equipment within right-of-ways, within easements, and over
routes provided for access to the work shall be performed in a manner to prevent
damage to vegetation and property.
F. The locations, alignments, and grades of construction roads are subject to appro val
of Duke Energy. Site clearing shall be conducted in accordance with Section 02230:
Clearing and Grubbing. When their use is no longer required by Contractor, areas
of construction roads and staging and stockpile areas shall be restored to the original
conditions and topographic contours except as otherwise specified for excess
excavation materials. All areas disturbed by construction shall be reclaimed in
accordance with Section 02920: Site Restoration and Revegetation. All contouring
and reclamation work completed in disturbed areas shall be conducted in such a
manner as to provide for proper drainage and to prevent erosion.
G. Except where clearing is required for permanent works or earthwork cut/fill
operations, all trees, shrubbery, and vegetation outside of the clearing limits shall be
preserved and protected from damage by Contractor's construction operations and
equipment.
H. Special care shall be exercised where trees or shrubs are exposed to damage by
construction equipment, excavating, dumping, chemical damage, or other
operations. Adequately protect such trees by use of protective barriers or other
methods approved by Duke Energy. Removal of trees and shrubs outside of
authorized clearing area shall be permitted only after approval by Duke Energy.
I. The layout of Contractor’s construction facilities such as shops, trailers, storage
areas, and parking areas, etc.; location of access and haul routes; and operations in
staging areas shall be planned and conducted in such a manner that all trees and
shrubbery not approved for removal by Duke Energy shall be preserved and
adequately protected from either direct or indirect damage by Contractor’s
operations.
J. No equipment shall be allowed to operate within the dripline of any tree to be
protected.
K. Trees shall not be used for anchorages.
L. Contractor shall be responsible for damage to trees and shrubs to remain caused by
their operations. The term damage shall include, without limitation, bruising,
scarring, tearing, and breaking of roots, trunks, or branches. All damaged trees
and/or shrubs shall be repaired or treated without delay, at Contractor’s expense. If
damage occurs, Duke Energy shall determine the repair method or treatment to be
used for damaged trees and/or shrubs as recommended by an experienced
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horticulturist or a licensed tree surgeon provided by and at the expense of
Contractor. All repairs or treatment of damaged trees shall be performed under the
direction of an experienced horticulturist or a licensed tree surgeon provided by and
at the expense of Contractor.
M. Damaged trees or shrubs that, in the opinion of Duke Energy, are beyond saving
shall be removed and replaced early in the next planting season. The replacements
shall be the same species, or other approved species, and of the maximum size that
is practicable to plant and sustain growth in the particular environment.
Replacement trees and shrubs shall be guyed, watered, and maintained for a period
of one month. Any replacement tree or shrub that dies shall be removed and
replaced, as directed by Duke Energy, with such replacements being maintained for
a period of one month from the replacement date. Replacement of damaged trees
and shrubs not required to be cleared or removed for construction shall be at
Contractor’s expenses.
N. Contractor shall take every precaution to avoid oil or fuel spills during construction.
The Contractor shall have oil/fuel control equipment (absorbent booms, etc.) on site
at all times. If oil or fuel is released or observed during construction, Contractor shall
immediately notify Duke Energy and deploy oil/fuel control equipment. Contractor
shall coordinate with Duke Energy on oil/fuel cleanup, as necessary.
1.4 PROTECTION OF WATER RESOURCES
A. Contractor shall comply with all project permit requirements, and all other applicable
federal, state, and local laws, orders, regulations, permits, and water quality
standards concerning the control and abatement of water pollution.
B. Contractor shall not adversely affect the existing water quality within or adjacent to
the project site. No construction wastes or other harmful materials shall be permitted
to enter these water resources.
C. Such construction wastes and harmful materials include, but are not restricted to,
refuse, garbage, sediment from erosion of construction areas, cement, bentonite,
slurry, sanitary waste, industrial waste, radioactive substances, oil and other
petroleum products, aggregate processing tailings, mineral salts, and thermal
pollution.
D. Surface drainage from work activities shall be protected by effective erosion and
sediment control measures or the work areas shall be graded to control erosion
within acceptable limits in accordance with the North Carolina Erosion and Sediment
Control Planning and Design Manual, latest edition, the Duke Energy Construction
Stormwater Planning Manual, and the approved E&SC Plan. These measures shall
be maintained until permanent drainage and erosion control facilities are
completed/established.
E. Wastewater from construction operations shall not enter streams, water courses,
wetlands, or lakes without passing through suitable sedimentation ponds or
treatment facilities approved by Duke Energy.
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F. Leaking equipment shall be immediately removed from the work site and leaks
repaired or equipment replaced.
G. Where the location of a construction site is such that oil or gas from an accidental
spillage could reasonably be expected to enter into or upon the navigable waters of
the United States or adjoining shorelines, and the aggregate storage of oil or gas at
the site is over 1,320 gallons, or a single container has a capacity in excess of 660
gallons, Contractor shall prepare a Spill Prevention Control and Counter Measure
Plan (SPCC) reviewed and certified by a North Carolina professional engineer in
accordance with 40 CFR, Par 112, as required by Public Law 92-500 as amended
by Public Law 95-217 and Public Law 95-576. If fuel storage will be less than
specified above, an SPCC will still be required, but does not need a North Carolina
PE stamp.
H. Submit to Duke Energy a certified statement that the SPCC, if required, was
reviewed and certified by a North Carolina registered professional engineer.
1.5 ABATEMENT OF AIR POLLUTION
A. Comply with applicable federal and state laws and County ordinances and
regulations concerning the prevention and control of air pollution.
B. In conducting construction activities and operation of equipment, Contractor shall
utilize such practicable methods and devices as are reasonably available to control,
prevent, and otherwise minimize atmospheric emissions or discharges of air
contaminants.
C. The emission of dust into the atmosphere shall be minimized during handling and
storage of construction materials, and Contractor shall use such methods and
equipment as are necessary to minimize or prevent dust during these operations.
Earth surfaces subject to dusting shall be kept moist with water or by application of
a chemical dust suppressant. When practicable, dusty materials in piles or in transit
shall be covered to prevent blowing dust.
D. Equipment and vehicles that are found to have emissions of exhaust gases or
particulates that exceed applicable limits established by federal, state, or local laws
or authorities shall not be operated until corrective repairs or adjustments are made.
If required by Duke Energy, Contractor shall provide acceptable evidence that
equipment and vehicles have been tested for exhaust emissions and have been
found to be in compliance with applicable limits.
E. Carry out proper and efficient measures wherever and as often as necessary to
reduce the dust nuisance, and to prevent dust from damaging the surrounding
environment, including crops, orchards, cultivated fields, and dwellings, or causing
a nuisance to persons. Contractor shall be held liable for any damage resulting from
dust originating from his operations under these specifications.
F. Contractor is responsible for control of fugitive dust generated during construction.
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1.6 ABATEMENT OF NOISE
A. Comply with applicable federal and state laws and County ordinances, orders, and
regulations concerning the prevention, control, and abatement of excessive noise.
B. Contractor shall take reasonable measures to avoid unnecessary noise. Such
measures shall be appropriate for the normal ambient sound levels in the area during
working hours. All construction machinery and vehicles shall be equipped with
practical sound-muffling devices and operated in a manner to cause the least noise
consistent with efficient performance of the work.
1.7 TEMPORARY DRAINAGE PROVISIONS
A. Provide for the drainage of stormwater, and such water as may be applied or
discharged on the site in performance of the work and in accordance with Section
02370: Erosion and Sediment Control, and the erosion and sediment controls
included on the Construction Documents and E&SC Plan in Appendix B. Drainage
facilities shall be adequate to prevent damage to the work, the site, and adjacent
property.
B. Existing drainage channels and conduits shall be cleaned, enlarged, or
supplemented as necessary to carry all increased runoff attributable to Contractor's
operations. Temporary measures shall be constructed as necessary to protect Duke
Energy's facilities and the work, and to direct water to drainage channels or conduits.
C. See also Section 02370: Erosion and Sediment Control.
PART 2 PRODUCTS
NOT USED.
PART 3 EXECUTION
NOT USED.
END OF SECTION
02370 EROSION AND SEDIMENT CONTROL
PART 1 GENERAL
1.1 SUMMARY
A. The work shall include, but not necessarily be limited to, installation of temporary
access ways and staging and stockpile areas, silt fences, temporary and permanent
seeding, turbidity and sediment barriers, diversion devices, best management
practices (BMPs); sediment removal and disposal; device maintenance; removal of
temporary devices; temporary mulching; inspections; and final cleanup .
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B. All erosion and sediment control devices shall be installed and activities completed
in accordance with the Drawings and this section of the Specifications, per the
NPDES Construction Stormwater General Permit NCG010000, and in accordance
with the approved Erosion and Sediment Control Plan.
C. The Drawings include plans, details, and notes for installing stormwater and erosion
and sediment control devices required for the project.
1.2 SUBMITTALS
A. Submit in accordance with specification Section 01330: Submittals.
B. Certification and summary of all required test results, prior to installation, that all
Erosion and Sediment Control materials manufactured for the project have been
produced in accordance with these specifications.
C. Delivery tickets or other approved receipts as evidence for materials received that
will be incorporated into construction.
1.3 QUALITY ASSURANCE
A. Contractor shall be responsible for the timely installation, maintenance, and removal
of all stormwater and sedimentation and erosion control devices necessary to
prevent the movement of sediment from the construction site to offsite areas or into
Charlie’s Pond via surface runoff or underground drainage systems. Measures in
addition to those shown on the Drawings necessary to prevent the movement of
sediment outside the limits of construction shall be installed, maintained, removed,
and cleaned up at the expense of Contractor. No additional charges to Owner will
be considered for the Work under this Section.
B. Contractor’s means and methods for excavations and fill placement shall be
conducted to minimize the risk of sediment transport downstream. All stormwater
and erosion and sediment control measures will be required to meet strict project
and permit standards.
PART 2 PRODUCTS
2.1 MATERIALS
A. Temporary Silt Fence: As noted and shown on the Drawings.
B. Temporary Construction Entrance/Exit: As noted and shown on the Drawings.
C. Seeding and Stabilization: Refer to Section 02920: Site Restoration and
Revegetation.
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D. Other Work: In addition to the stormwater and erosion and sediment control
measures shown on the Drawings, Contractor shall provide all adequate means to
prevent any sediment from entering any storm drains, drop inlets, ditches, streams,
or bodies of water downstream of any area disturbed by construction. Excavation
materials shall be placed upstream of any trench or other excavation to prevent
sedimentation of off-site areas. In areas where a natural buffer area exists between
the Work area and the closest stream or water course, this area shall not be
disturbed. All paved areas shall be scraped and swept as necessary to prevent the
accumulation of dirt and debris. Work associated with this provision shall be
considered incidental to the project and no separate payment will be made to
Contractor.
PART 3 EXECUTION
3.1 GENERAL
A. This project is covered by the NPDES construction stormwater general permit
NCG010000. The NCDEQ approved erosion and sediment control plan and the
NPDES constriction stormwater general permit NCG010000 are considered the
Stormwater Pollution Prevention Plan (SWPPP) for the project. Duke Energy will
supply these two documents to Contractor. Contractor will be responsible for
keeping these documents on file at the project site and readily accessible. Duke
Energy will also provide the certificate of the NCDEQ approval for the erosion and
sediment control plan. Contractor will be responsible for posting this certificate in a
prominent location at the project site.
B. Contractor shall become familiar with and shall be responsible for the compliance
with requirements of the NPDES construction stormwater general permit
NCG010000. These requirements include, but are not limited to, installing a rain
gauge onsite and keeping daily record of rainfall, conducting and documenting
routine inspections of erosion and sediment control practices and stormwater
outfalls, 24-hour reporting to NCDEQ for sediment deposition, and control of
construction site pollutants.
C. Contractor shall designate an individual who will be their primary contact for all
issues regarding compliance with the NPDES construction stormwater general
permit NCG010000 and the NCDEQ approved erosion and sediment control plan.
D. Initially clear only those areas necessary for installation of the perimeter erosion and
sediment control measures. The balance of the project area shall not be cleared or
otherwise disturbed until the perimeter erosion and sediment control measures are
installed, functional, and approved by Engineer and NCDEQ inspector.
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E. Inspect erosion and sediment control measures at least weekly or immediately
following a significant storm event (rainfall greater than 1.0 inches per 24-hour
period).
F. Contractor shall be responsible for prevention of damage to properties outside of the
designated limits of disturbance from siltation due to construction activities.
G. Temporary erosion and sediment control measures shall be removed following
stabilization of the site. Do not remove erosion and sediment control measures until
authorized by Engineer.
H. Due to the nature of the work required by this Contract, it is anticipated that the
location and nature of stormwater and erosion and sediment control devices may
need to be adjusted on several occasions to reflect the current phase of construction.
I. The construction schedule adopted by Contractor will impact the placement and
need for specific devices required for the control of stormwater and erosion.
Contractor shall develop and implement such additional techniques as may be
required to minimize erosion and off-site sedimentation.
J. All disturbed areas shall be uniformly graded to the lines, grades, and elevations
shown on the Drawings. Finished surfaces shall be reasonably smooth, compacted,
and free from irregular surface changes. Unless otherwise specified, the degree of
finish shall be that ordinarily obtainable from either blade or scraper operations.
Areas shall be finished to a smoothness suitable for application of topsoil.
K. The location and extent of erosion and sediment control devices shall be revised at
each phase of construction that results in a change in either the quantity or direction
of surface runoff from construction areas. All deviations from the control provisions
shown on the Drawings shall have the prior approval of Engineer and Duke Energy.
L. All areas shall be kept in a neat, orderly condition at all times. Prior to final
acceptance, Contractor shall clean up the entire landscaped area to the satisfaction
of Engineer and Duke Energy.
3.2 TEMPORARY SILT FENCE
A. Silt fence shall comply with the requirements of standard specification 6.62 of the
North Carolina Sediment Control Planning and Design Manual.
B. Furnish and install silt fence (steel posts, filter fabric, and wire mesh) as shown on
the Drawings and as directed by Engineer.
C. Make any required repairs to silt fence as needed and immediately following
inspections. Give special attention to storm damage resulting in end -runs,
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undermining or overtopping. Replace fabric and/or wire that is damaged,
decomposing, or is otherwise ineffective.
D. Remove accumulated sediment as needed. Do not allow sediment to accumulate
higher than one-half the height of the barrier.
3.3 TEMPORARY CONSTRUCTION ENTRANCE
A. Temporary gravel construction entrance shall comply with the requirements of
standard specification 6.06 of the North Carolina Erosion and Sediment Control
Planning and Design Manual.
B. Furnish and install stone aggregate and filter fabric as shown on these plans and as
directed by Engineer.
C. Maintain gravel pad in a condition to prevent mud or sediment from leaving the
construction site.
D. Repair as needed. Periodic top-dressing with additional stone may be needed.
E. Immediately remove all objectionable materials spilled, washed, or tracked onto
public roadways.
END OF SECTION
02920 SITE RESTORATION AND REVEGETATION
PART 1 GENERAL
1.1 SUMMARY
A. Section includes:
1. Requirements for establishing and maintaining vegetation throughout and
following completion of the project.
2. Preparing subsoil and placing topsoil from stockpiles.
3. Temporary seeding requirements.
4. Permanent seeding requirements.
1.2 REFERENCES AND DEFINITIONS
A. Temporary Construction Entrance/Exit: As noted and shown on the Drawings.
B. Seeding and Stabilization: As noted on the Drawings and in accordance with the
erosion and sediment control plans, notes, and details.
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C. North Carolina Department of Environment Quality (NCDEQ) Erosion and Sediment
Control Planning and Design Manual.
D. Satisfactory Stand: Section of grass that has:
1. No bare spots larger than 3 square ft.
2. Not more than 10% of total area with bare spots larger than one square foot.
3. Not more than 15% of total area with bare spots larger than 6 square inches.
1.3 SUBMITTALS
A. Submit in accordance with Section 01330: Submittals.
B. Material Information
1. Fertilizer: Type and rate of application.
2. Lime: Rate of application.
C. Material Certifications:
1. Certification of seed analysis, germination rate, and inoculation:
a. Certify that each lot of seed has been tested by a testing laboratory certified
in seed testing, within 6 months of date of delivery. Include with
certification:
b. Name and address of laboratory(s).
c. Date of test.
d. Lot number for each seed specified.
e. Test Results: (i) name, (ii) percentages of purity and of germination, and
(iii) weed content for each kind of seed furnished.
f. Mixtures: Proportions of each kind of seed.
g. Origin of seed.
h. Certification the seed is 99% weed free.
1.4 QUALITY ASSURANCE AND QUALITY CONTROL
A. A pre-application meeting is required before any revegetation activities begin.
Contractor is responsible for scheduling, holding, and confirming that all required
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attendees participate in the meeting. Contractor, seeding SubContractor, seed
supplier, and Duke Energy must attend.
B. Temporary seeded areas shall be reviewed by Duke Energy for bare soils caused
by surface or wind erosion. Bare areas shall be regraded, seeded, and protected by
installing erosion control matting.
C. Perform work under favorable weather and soil moisture conditions as determined
by acceptable local practice.
D. Notify Duke Energy at least 3 days in advance of:
1. Each material delivery.
2. Start of seeding activity.
1.5 DELIVERY STORAGE AND HANDLING
A. Seed Containers.
1. Sealed: Each type of seed shall be delivered in separate sealed containers and
fully tagged unless exception is granted in writing by Engineer or Duke Energy.
2. Labeled: Seed shall be labeled in accordance with the state laws and the U.S.
Department of Agriculture rules and regulations under the Federal Seed Act in
effect on the date of invitations for bids. Bag tag figures are evidence of purity
and germination.
3. Interstate shipping: Interstate shipping shall be done in accordance with U.S.
Department of Agriculture Rules and Regulations under the Federal Seed Act.
PART 2 PRODUCTS
2.1 TOPSOIL
A. Topsoil stripped from the site consisting of the top surface soil that is dark brown or
black, fertile, and contains organic matter or the soil that is located at the surface, or
as directed by Duke Energy or their representative. Topsoil shall be free of subsoil,
noxious weed seed or reproductive vegetation plants, heavy clay, hard clods, toxic
substances, or other material which would be detrimental to plant growth.
2.2 SEED
A. Free of noxious or restricted weeds in accordance with the current rules and
regulations or as specified in the North Carolina Seed Law.
B. Certified in conformance with current rules and regulations of the North Carolina
Seed Law and approved by the North Carolina Department of Agriculture.
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C. Latest crop available. Seed shall bear an official “Certified Seed” label.
D. Seed which has become wet, moldy, or damaged in transit or in storage will not be
accepted. No seed will be accepted with a test date of more than 6 months before
delivery date to the site.
E. The seed species and application rates for temporary and permanent seeding are
shown in tables in this specification.
2.3 FERTILIZER
A. Premixed in standard sized bags, showing weight, analysis, and name of
manufacturer.
B. Fertilizer which becomes caked or damaged will not be accepted.
C. Type of fertilizer and application rate for temporary seeding is shown on the
Drawings, or as indicated through soils testing. For permanent seeding, the type of
fertilizer and application rate shall be determined by North Carolina Department of
Agriculture soils tests or approved equal.
2.4 LIME
A. Lime shall be ground agricultural limestone.
B. Lime application rates are shown in the Tables in this specification section.
PART 3 EXECUTION
3.1 GENERAL
A. All Site Restoration and Revegetation work is the responsibility of Contractor and
shall be completed as shown on the Drawings, per the NPDES Construction
Stormwater General Permit NCG010000, and in accordance with the approved
Erosion and Sediment Control Plan.
B. Any areas which are not to be further graded within a 14-day period, or which have
not been graded within 14 days shall be seeded in accordance with the following
Temporary and Permanent Seeding specifications.
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3.2 TEMPORARY SEEDING
A. Temporary seeding should be completed in areas where final grade will not be
reached within 14 days and should comply with the Erosion and Sediment Control
Plan and the requirements of Standard Specification 6.10 of the NCDEQ Erosion
and Sediment Control Planning and Design Manual.
B. Temporary seeding shall adhere to the following species and application rates:
Temporary Seeding Mixtures
Planting Season Species Application Rates
Cool season planting period:
January 1 to May 1
Oats (Grain) 125 lbs/ac
Fertilizer (10-10-10) 750 lbs/ac
Lime 2000 lbs/ac
Warm season planting period:
May 1 to August 15
German Millet 50 lbs/ac
Fertilizer (10-10-10) 750 lbs/ac
Lime 2000 lbs/ac
Cool Season planting period:
August 15 to December 30
Rye (Grain) 125 lbs/ac
Fertilizer (10-10-10) 750 lbs/ac
Lime 2000 lbs/ac

C. Apply fertilizer and lime per Temporary Seeding Mixtures table or as indicated
through soils testing.
D. Prepare seedbed to comprise well-pulverized, loose, and uniform soil. Loosen all
disturbed areas to a depth of 3 to 6 inches. In areas where repeated access by heavy
equipment or trucks has caused compaction, loosen the soil to a depth of 12 inches.
Contractor may use agricultural or construction equipment to perform this task.
E. Evenly apply seed by broadcasting or hydroseeding (if preferred). Cover broadcast
seed by raking or chain dragging. See below for hydroseeding requirements.
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F. Protect gentle slopes (less than 3:1 horizontal to vertical or steeper) by applying
4,000 pounds per acre of straw mulch. Where practical, seed shall be applied in two
directions perpendicular to each other. Apply half the seeding rate in each direction.
G. Protect steeper slopes (3:1 horizontal to vertical or steeper) or otherwise sensitive
areas through hydroseeding or by applying erosion control matting (as approved by
Duke Energy). See general notes for hydroseeding requirements and specifications.
H. Water, monitor, but generally, do not mow until permanent vegetation is established.
3.3 PERMANENT SEEDING
A. Permanent seeding shall be per the Erosion and Control Plan and should comply
with the requirements of Standard Specification 6.11 of the NCDEQ Erosion and
Sediment Control Planning and Design Manual.
B. Permanent seeding shall adhere to the following species and applications rates:
Permanent Seeding Mixtures
Planting Season Species Application Rate
Cool season planting period:
September to April
Tall Fescue 100 lbs/ac
Kentucky Bluegrass 15 lbs/ac
Hard Fescue 30 lbs/ac
Rye (Grain) 25 lbs/ac
Fertilizer (10-20-20) 500 lbs/ac
Lime 4000 lbs/ac
Warm season planting period:
May to August
Tall Fescue 100 lbs/ac
Kentucky Bluegrass 15 lbs/ac
Hard Fescue 30 lbs/ac
German Millet 10 lbs/ac
Fertilizer (10-20-20) 500 lbs/ac
Lime 4000 lbs/ac

C. Conduct North Carolina Department of Agriculture soils test(s) or equal to establish
soil pH and nutrient conditions of soils in areas to be seeded.
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D. Fertilizer and lime application rates should be adjusted as needed based on soil
sampling and testing results, and as directed by Duke Energy.
E. Incorporate fertilizer and lime into top 4 to 6 inches of soil by disc harrowing or tilling.
F. Prepare seedbed to comprise well-pulverized, loose, and uniform soil. Loosen all
disturbed areas to a depth of 3 to 6 inches. In areas where repeated access by heavy
equipment or trucks has caused compaction, Contractor shall loosen the soil to a
depth of 12 inches. Contractor may use agricultural or construction equipment to
perform the task.
G. Establish permanent vegetation in all disturbed areas unless otherwise specified on
the Drawings.
3.4 MAINTENANCE
A. Contractor shall establish and maintain permanent vegetation throughout the project
and for one year following completion per the Erosion and Sediment Control Plan
and the permanent stabilization and seeding requirements of the NCDEQ Erosion
and Sediment Control Planning and Design Manual.
3.6 FIELD QUALITY CONTROL
A. Contractor shall unconditionally guarantee a satisfactory stand of grasses in all
locations seeded throughout the entire maintenance period.
B. Eight weeks after seeding is complete and on written notice from Contractor, Duke
Energy will, within 15 days of receipt, determine if a satisfactory stand has been
established.
C. If a satisfactory stand has not been established, Duke Energy will make another
determination after written notice from Contractor following the next growing season.
END OF SECTION
VEGETATION PLAN
Refer to Bid Specification 02920 Site Restoration And Revegetation Section above.

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Appendix A
NCDEQ Forms:
Financial Responsibility/Ownership Form
Review Checklist

REVISION 1 (4/14/2020)
FINANCIAL RESPONSIBILITY/OWNERSHIP FORM
SEDIMENTATION POLLUTION CONTROL ACT
EXPRESS PERMITTING OPTION 08012007
No person may initiate any land-disturbing activity on one or more acres as covered by the Act before
this form and an acceptable erosion and sedimentation control plan have been completed and approved
by the Land Quality Section, N.C. Department of Environmental Quality. Submit the completed form to the
appropriate Regional Office. (Please type or print and, if the question is not applicable or the e-mail and/or
fax information unavailable, place N/A in the blank.)
Part A.
1.Project Name_______________________________________________________________________
2. Location of land-disturbing activity: County__________________City or Township_________________
Highway/Street______________________Latitude________________Longitude__________________
3. Approximate date land-disturbing activity will commence:_____________________________________
4. Purpose of development (residential, commercial, industrial, institutional, etc.):____________________
5. Total acreage disturbed or uncovered (including off-site borrow and waste areas):_________________
6. Amount of fee enclosed: $____________. The Express Permitting application fee is a dual charge.
The normal fee of $65.00 per acre is assessed without a ceiling amount. In addition, the Express
Permitting supplement is $250.00 per acre up to eight acres, after which the Express Permitting
supplemental fee is a fixed $2,000.00 (Example: 9 acres total is $2,585). NOTE: Both fees are
rounded up to the next whole acre and need to be paid by separate checks to NCDENR.
7. Has an erosion and sediment control plan been filed? Yes________ No________ Enclosed_________
8. Person to contact should erosion and sediment control issues arise during land-disturbing activity:
Name_______________________________ E-mail Address_______________________________
Telephone_________________________ Cell # ____________________ Fax # _________________
9. Landowner(s) of Record (attach accompanied page to list additional owners):
____________________________________ ________________________ _________________
Name Telephone Fax Number
____________________________________ ___________________________________________
Current Mailing Address Current Street Address
____________________________________ ___________________________________________
City State Zip City State Zip
10.Deed Book No._______________ Page No.______________ Provide a copy of the most current deed.
1.Company(ies) or firm(s) who are financially responsible for the land-disturbing activity (Provide a
comprehensive list of all responsible parties on an attached sheet.) If the company or firm is a sole proprietorship,
the name of the owner or manager may be listed as the financially responsible party.
____________________________________ ___________________________________________
Name E-mail Address
____________________________________ ___________________________________________
Current Mailing Address Current Street Address
____________________________________ ___________________________________________
City State Zip City State Zip
Telephone____________________________ Fax Number_________________________________
Part B.
REVISION 1 (4/14/2020)
2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address
of the designated North Carolina Agent:

_____________________________________ ___________________________________________
Name E-mail Address

_____________________________________ ___________________________________________
Current Mailing Address Current Street Address

_____________________________________ ___________________________________________
City State Zip City State Zip

Telephone____________________________ Fax Number_________________________________

(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent:

_____________________________________ ___________________________________________
Name of Registered Agent E-mail Address

_____________________________________ ___________________________________________
Current Mailing Address Current Street Address

_____________________________________ ___________________________________________
City State Zip City State Zip

Telephone_____________________________ Fax Number_________________________________

(c) In order to facilitate Express Permitting, it is necessary to be able to contact the Engineer or other
consultant who can assist in providing any necessary information regarding the plan and its preparation:

_____________________________________ ___________________________________________
Engineering Firm or other consultant E-mail Address

_____________________________________ ________________________ _________________
Individual contact person (type or print) Telephone Fax Number

The above information is true and correct to the best of my knowledge and belief and was provided by me
under oath (This form must be signed by the Financially Responsible Person if an individual or his attorney-in-
fact, or if not an individual, by an officer, director, partner, or registered agent with the authority to execute
instruments for the Financially Responsible Person). I agree to provide corrected information should there be
any change in the information provided herein.

_________________________________________ ___________________________________________
Type or print name Title or Authority

_________________________________________ ___________________________________________
Signature Date
-------------------------------------------------------------------------------------------------------------------------------------------------

I, _______________________________________, a Notary Public of the County of ____________________

State of North Carolina, hereby certify that ____________________________________ appeared personally
before me this day and being duly sworn acknowledged that the above form was executed by him.

Witness my hand and notarial seal, this _______day of _________________, 20_____

___________________________________________
Notary
Seal
My commission expires_________________________
REVISION 1 (4/14/2020)
EROSION and SEDIMENTATION CONTROL PLAN PRELIMINARY REVIEW CHECKLIST
The following items shall be incorporated with respect to specific site conditions, in an erosion & sedimentation control plan:
NPDES Construction Stormwater General Permit NCG010000
______ Designation on the plans where the 7 or 14 day ground stabilization requirements apply per Part II.E.1 of the permit.
______ Design of basins with one acre or more of drainage area for surface withdrawal as per Part II.B.8 of the permit.
LOCATION INFORMATION
______ Project location & labeled vicinity map (roads, streets, landmarks)
______ North arrow and scale
______ Identify River Basin.
______ Provide a copy of site located on applicable USGS quadrangle and
NRCS Soils maps if it is in a River Basin with Riparian Buffer
requirements.
GENERAL SITE FEATURES (Plan elements)
_____ Property lines & ownership ID for adjoining properties
_____ Existing contours (topographic lines)
_____ Proposed contours
_____ Limits of disturbed area (provide acreage total, delineate limits,
and label). Be sure to include all access to measures, lots that will
be disturbed, and utilities that may extend offsite. ____Planned and existing building locations and elevations
Planned & existing road locations & elevations, including
temporary access roads
_____ Lot and/or building numbers
_____ Hydrogeologic features: rock outcrops, seeps, springs, wetland
and their limits, streams, lakes, ponds, dams, etc. (include all
required local or state buffer zones and any DWQ Riparian Buffer
determinations)
_____ Easements and drainageways, particularly required for offsite
affected areas. Include copies of any recorded easements and/or
agreements with adjoining property owners.
_____ Profiles of streets, utilities, ditch lines, etc.
_____ Stockpiled topsoil or subsoil locations
_____ If the same person conducts the land-disturbing activity & any
related borrow or waste activity, the related borrow or waste
activity shall constitute part of the land-disturbing activity unless
the borrow or waste activity is regulated under the Mining Act of
1971, or is a landfill regulated by the Division of Waste
Management. If the land-disturbing activity and any related
borrow or waste activity are not conducted by the same person,
they shall be considered separate land-disturbing activities and
must be permitted either through the Sedimentation Pollution
Control Act as a one-use borrow site or through the Mining Act.
______ Location and details associated with any onsite stone crushing or
other processing of material excavated. If the affected area
associated with excavation, processing, stockpiles and transport
of such materials will comprise 1 or more acres, and materials will
be leaving the development tract, a mining permit will be required.
______ Required Army Corps 404 permit and Water Quality 401
certification (e.g. stream disturbances over 150 linear feet)
EROSION & SEDIMENT CONTROL MEASURES (on plan)
______ Legend (provide appropriate symbols for all measures and
reference them to the construction details)
______ Location of temporary measures
______ Location of permanent measures
______ Construction drawings and details for
temporary and permanent measures. Show measures to scale on
plan and include proposed contours where necessary. Ensure
design storage requirements are maintained through all phases of
construction.
_____ Maintenance requirements for measures
_____ Contact person responsible for maintenance
SITE DRAINAGE FEATURES
_____ Existing and planned drainage patterns (include off-site areas that
drain through project and address temporary and permanent
conveyance of stormwater over graded slopes)
_____ Method used to determine acreage of land being disturbed and
drainage areas to all proposed measures (e.g. delineation map)
_____ Size, pipe material and location of culverts and sewers
_____ Soil information: type, special characteristics
_____ Soil information below culvert storm outlets
_____ Name and classification of receiving water course or name of
municipal operator (only where stormwater discharges are to
occur)
STORMWATER CALCULATIONS
_____ Pre-construction runoff calculations for each outlet from the site (at
peak discharge points). Be sure to provide all supporting data for
the computation methods used (rainfall data for required storm
events, time of concentration/storm duration, and runoff
coefficients).
_____ Design calculations for peak discharges of runoff (including the
construction phase & the final runoff coefficients for the site)
_____ Design calcs for culverts and storm sewers (include HW, TW and
outlet velocities)
_____ Discharge and velocity calculations for open channel and ditch
flows (easement & rights-of-way)
_____ Design calcs for cross sections and method of stabilization for
existing and planned channels (include temporary linings). Include
appropriate permissible velocity and/or shear stress data.
_____ Design calcs and construction details for energy dissipaters below
culvert and storm sewer outlets (include stone/material specs &
apron dimensions). Avoid discharges on fill slopes.
_____ Design calcs and dimension of sediment basins (note current
surface area and dewatering standards as well as diversion of
runoff to the basins). Be sure that all surface drains, including
ditches and berms, will have positive drainage to the basins.
VEGETATIVE STABILIZATION
_____ Area & acreage to be stabilized with vegetation
_____ Method of soil preparation
_____ Seed type & rates (temporary & permanent)
_____ Fertilizer type and rates
_____ Mulch type and rates (include mulch anchoring methods)
NOTE: Plan should include provisions for groundcover in accordance with
NPDES Construction Stormwater General Permit NCG010000.
FINANCIAL RESPONSIBILITY/OWNERSHIP FORM
_____ Completed, signed & notarized FR/O Form
_____ Accurate application fee payable to NCDEQ ($65.00 per acre
rounded up the next acre with no ceiling amount)
_____ Certificate of assumed name, if the owner is a partnership
_____ Name of Registered Agent (if applicable)
_____ Copy of the most current Deed for the site. Please make sure the
deed(s) and ownership information are consistent between the
plan sheets, local records and this form.
_____ Provide latitude & longitude (in decimal degrees) at the project
entrance.
_____ Two hard-copies of the plans (some regional offices require
additional plans or multiple sizes; please contact the regional
coordinator prior to such submittal.)
NOTE: For the Express Permitting Option, inquire at the local Regional
Office for availability. Express Reviews are performed by
appointment only.
NARRATIVE AND CONSTRUCTION SEQUENCE
_____ Narrative describing the nature & purpose of the construction
activity.
_____ Construction sequence related to erosion and sediment control
(including installation of critical measures prior to the initiation of
the land-disturbing activity & removal of measures after areas they
serve are permanently stabilized). Address all phases of
construction and necessary practices associated with temporary
stream bypasses and/or crossings.
_____ Bid specifications related only to erosion control
rev. 05142019
____
REVISION 1 (4/14/2020)
Erosion and Sediment Control Plan
Belews Creek BC-159 East Pine Hall Road Stormwater Reroute Page 27

Appendix B
Erosion and Sediment Control Plan and Details –
Belews Creek Steam Station: BC-159 East Pine Hall Road Stormwater Reroute
REVISION 1 (4/14/2020)
XXXXXXXXXXXXXXXX
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BC-159-006
EROSION AND SEDIMENT CONTROL PLAN
BC-159-006
BC-159-00610 20 30TENTHS0
2 3 4 5 7 86
A
1 2 3
A
BB
C
D
7 8623456
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DWG SIZE REVISION
FOR
DRAWING NO.
FILENAME:
DWG TYPE:
JOB NO:
DATE:
SCALE:DES:
CHKD:
ENGR:
APPD:
22.0"x34.0"
ANSI D
SEAL
DFTR:
TITLE
N.C. ENGINEERING LICENSE NO.
F-0342
.DWG
FILENAME:BC-159-002-006-EX AND PROP_PLAN-PROF.DWGFILENAME:
BELEWS CREEK STEAM STATION
STOKES COUNTY, NORTH CAROLINA
AS SHOWN
60616600
1-29-20
NSF
NSF
DC
DC
DC
1 11
BC-159 EAST PINE HALL ROAD FUTURE STORMWATER REROUTE
NOT FOR CONSTRUCTION
ISSUED FOR PERMIT SUBMITTAL
Feet
0 60 120
REVISION 1 (4/14/2020)
BC-159-007
BC-159-007BC-159-007
EROSION AND SEDIMENT CONTROL DETAILS I
10 20 30TENTHS0
2 3 4 5 7 86
A
1 2 3
A
BB
C
D
7 8623456
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DWG SIZE REVISION
FOR
DRAWING NO.
FILENAME:
DWG TYPE:
JOB NO:
DATE:
SCALE:DES:
CHKD:
ENGR:
APPD:
22.0"x34.0"
ANSI D
SEAL
DFTR:
TITLE
N.C. ENGINEERING LICENSE NO.
F-0342
.DWG
FILENAME:BC-159-007-011_E&S DETAILS AND NOTES.DWGFILENAME:
BELEWS CREEK STEAM STATION
STOKES COUNTY, NORTH CAROLINA
AS SHOWN
60616600
1-29-20
NSF
NSF
DC
DC
DC
1 11
BC-159 EAST PINE HALL ROAD FUTURE STORMWATER REROUTE
NOT FOR CONSTRUCTION
ISSUED FOR PERMIT SUBMITTAL
WATTLE CHECK DAMS W/ MATTING & OPTIONAL PAM
NOT TO SCALE
3
7
SEDIMENT / SILT FENCE
NOT TO SCALE
2
7
CONSTRUCTION ENTRANCE
NOT TO SCALE
4
7
TEMPORARY TURBIDITY CURTAIN
NOT TO SCALE
1
7
REVISION 1 (4/14/2020)
BC-159-008
BC-159-008BC-159-008
EROSION AND SEDIMENT CONTROL DETAILS II
10 20 30TENTHS0
2 3 4 5 7 86
A
1 2 3
A
BB
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7 8623456
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DWG SIZE REVISION
FOR
DRAWING NO.
FILENAME:
DWG TYPE:
JOB NO:
DATE:
SCALE:DES:
CHKD:
ENGR:
APPD:
22.0"x34.0"
ANSI D
SEAL
DFTR:
TITLE
N.C. ENGINEERING LICENSE NO.
F-0342
.DWG
FILENAME:BC-159-007-011_E&S DETAILS AND NOTES.DWGFILENAME:
BELEWS CREEK STEAM STATION
STOKES COUNTY, NORTH CAROLINA
AS SHOWN
60616600
1-29-20
NSF
NSF
DC
DC
DC
1 11
BC-159 EAST PINE HALL ROAD FUTURE STORMWATER REROUTE
NOT FOR CONSTRUCTION
ISSUED FOR PERMIT SUBMITTAL
CONSTRUCTION FENCING
NOT TO SCALE
2
8
SURFACE STABILIZATION SEEDING MIXES
NOT TO SCALE
1
8
REVISION 1 (4/14/2020)
A
A
BC-159-009
BC-159-009BC-159-009
EROSION AND SEDIMENT CONTROL DETAILS III
10 20 30TENTHS0
2 3 4 5 7 86
A
1 2 3
A
BB
C
D
7 8623456
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DWG SIZE REVISION
FOR
DRAWING NO.
FILENAME:
DWG TYPE:
JOB NO:
DATE:
SCALE:DES:
CHKD:
ENGR:
APPD:
22.0"x34.0"
ANSI D
SEAL
DFTR:
TITLE
N.C. ENGINEERING LICENSE NO.
F-0342
.DWG
FILENAME:BC-159-007-011_E&S DETAILS AND NOTES.DWGFILENAME:
BELEWS CREEK STEAM STATION
STOKES COUNTY, NORTH CAROLINA
AS SHOWN
60616600
1-29-20
NSF
NSF
DC
DC
DC
1 11
BC-159 EAST PINE HALL ROAD FUTURE STORMWATER REROUTE
NOT FOR CONSTRUCTION
ISSUED FOR PERMIT SUBMITTAL
SEDIMENT FILTER BAG WITH GRAVEL PAD
NOT TO SCALE
2
9
CONCRETE WASHOUT
NOT TO SCALE
1
9
REVISION 1 (4/14/2020)
NCG01 SELF-INSPECTION, RECORDKEEPING AND REPORTING
PART III
SELF-INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF-INSPECTION
Self-inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self-inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
PART III
SELF-INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING
1.E&SC Plan Documentation
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
approved E&SC plan must be kept up-to-date throughout the coverage under this permit.
The following items pertaining to the E&SC plan shall be documented in the manner
described:
2. Additional Documentation
In addition to the E&SC Plan documents above, the following items shall be kept on the
site
and available for agency inspectors at all times during normal business hours, unless the
Division provides a site-specific exemption based on unique site conditions that make this
requirement not practical:
(a)This general permit as well as the certificate of coverage, after it is received.
(b)Records of inspections made during the previous 30 days. The permittee shall record
the required observations on the Inspection Record Form provided by the Division or
a similar inspection form that includes all the required elements. Use of
electronically-available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard-copy records.
(c)All data used to complete the Notice of Intent and older inspection records shall be
maintained for a period of three years after project completion and made available
upon request. [40 CFR 122.41]
PART III
SELF-INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1.Occurrences that must be reported
Permittees shall report the following occurrences:
(a)Visible sediment deposition in a stream or wetland.
(b)Oil spills if:
·They are 25 gallons or more,
·They are less than 25 gallons but cannot be cleaned up within 24 hours,
·They cause sheen on surface waters (regardless of volume), or
·They are within 100 feet of surface waters (regardless of volume).
(a)Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
(b)Anticipated bypasses and unanticipated bypasses.
(c)Noncompliance with the conditions of this permit that may endanger health or the
environment.
2.Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate Division regional office within the timeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Division's Emergency Response personnel at [phone], (800)
858-0368 or [phone].
BC-159-010
BC-159-010BC-159-010
EROSION AND SEDIMENT CONTROL NOTES I
10 20 30TENTHS0
2 3 4 5 7 86
A
1 2 3
A
BB
C
D
7 8623456
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DWG SIZE REVISION
FOR
DRAWING NO.
FILENAME:
DWG TYPE:
JOB NO:
DATE:
SCALE:DES:
CHKD:
ENGR:
APPD:
22.0"x34.0"
ANSI D
SEAL
DFTR:
TITLE
N.C. ENGINEERING LICENSE NO.
F-0342
.DWG
FILENAME:BC-159-007-011_E&S DETAILS AND NOTES.DWGFILENAME:
BELEWS CREEK STEAM STATION
STOKES COUNTY, NORTH CAROLINA
AS SHOWN
60616600
1-29-20
NSF
NSF
DC
DC
DC
1 11
BC-159 EAST PINE HALL ROAD FUTURE STORMWATER REROUTE
NOT FOR CONSTRUCTION
ISSUED FOR PERMIT SUBMITTAL
REVISION 1 (4/14/2020)
NCG01 GROUND STABILIZATION AND MATERIALS HANDLING
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCG01 CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction
activity being considered compliant with the Ground Stabilization and Materials Handling
sections of the NCG01 Construction General Permit (Sections E and F, respectively). The
permittee shall comply with the Erosion and Sediment Control plan approved by the
delegated authority having jurisdiction. All details and specifications shown on this sheet
may not apply depending on site conditions and the delegated authority having jurisdiction.
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
techniques in the table below:
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1.Select flocculants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2.Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
3.Apply flocculants at the concentrations specified in the NC DWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
4.Provide ponding area for containment of treated Stormwater before discharging
offsite.
5.Store flocculants in leak-proof containers that are kept under storm-resistant cover
or surrounded by secondary containment structures.
HAZARDOUS AND TOXIC WASTE
1.Create designated hazardous waste collection areas on-site.
2.Place hazardous waste containers under cover or in secondary containment.
3.Do not store hazardous chemicals, drums or bagged materials directly on the ground.
EQUIPMENT AND VEHICLE MAINTENANCE
1.Maintain vehicles and equipment to prevent discharge of fluids.
2.Provide drip pans under any stored equipment.
3.Identify leaks and repair as soon as feasible, or remove leaking equipment from the
project.
4.Collect all spent fluids, store in separate containers and properly dispose as
hazardous waste (recycle when possible).
5.Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6.Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1.Never bury or burn waste. Place litter and debris in approved waste containers.
2.Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
3.Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4.Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
5.Cover waste containers at the end of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
6.Anchor all lightweight items in waste containers during times of high winds.
7.Empty waste containers as needed to prevent overflow. Clean up immediately if
containers overflow.
8.Dispose waste off-site at an approved disposal facility.
9.On business days, clean up and dispose of waste in designated waste containers.
PAINT AND OTHER LIQUID WASTE
1.Do not dump paint and other liquid waste into storm drains, streams or wetlands.
2.Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3.Contain liquid wastes in a controlled area.
4.Containment must be labeled, sized and placed appropriately for the needs of site.
5.Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1.Install portable toilets on level ground, at least 50 feet away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2.Provide staking or anchoring of portable toilets during periods of high winds or in high
foot traffic areas.
3.Monitor portable toilets for leaking and properly dispose of any leaked material.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
HERBICIDES, PESTICIDES AND RODENTICIDES
1.Store and apply herbicides, pesticides and rodenticides in accordance with label
restrictions.
2.Store herbicides, pesticides and rodenticides in their original containers with the
label, which lists directions for use, ingredients and first aid steps in case of
accidental poisoning.
3.Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or surface water. If a spill occurs, clean area immediately.
4.Do not stockpile these materials onsite.
CONCRETE WASHOUTS
1.Do not discharge concrete or cement slurry from the site.
2.Dispose of, or recycle settled, hardened concrete residue in accordance with local
and state solid waste regulations and at an approved facility.
3.Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter silt fence.
4.Install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
5.Do not use concrete washouts for dewatering or storing defective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6.Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlet(s) closest to the washout which could receive
spills or overflow.
7.Locate washouts in an easily accessible area, on level ground and install a stone
entrance pad in front of the washout. Additional controls may be required by the
approving authority.
8.Install at least one sign directing concrete trucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9.Remove leavings from the washout when at approximately 75% capacity to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10.At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
caused by removal of washout.
EARTHEN STOCKPILE MANAGEMENT
1.Show stockpile locations on plans. Locate earthen-material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless it can be shown no other alternatives are reasonably
available.
2.Protect stockpile with silt fence installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3.Provide stable stone access point when feasible.
4.Stabilize stockpile within the timeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization Timeframes
Note: After the permanent cessation of construction activities, any areas with temporary
ground stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no case longer than 90 calendar days after the last land disturbing
activity. Temporary ground stabilization shall be maintained in a manner to render the
surface stable against accelerated erosion until permanent ground stabilization is achieved.
Site Area Description Timeframe variations
-7 days for perimeter dikes, swales,
ditches, perimeter slopes and HQW Zones
-10 days for Falls Lake Watershed unless
there is zero slope
Stabilize within this
many calendar
days after ceasing
land disturbance
7
7
7
14
None
None
(a)Perimeter dikes,
swales, ditches, and
perimeter slopes
(b)High Quality Water
(HQW) Zones
(c)Slopes steeper than
3:1
If slopes are 10' or less in length and are
not steeper than 2:1, 14 days are
allowed
(d)Slopes 3:1 to 4:1
(e)Areas with slopes
flatter than 4:1 14
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
-7 days for perimeter dikes, swales,
ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
BC-159-011
BC-159-011BC-159-011
EROSION AND SEDIMENT CONTROL NOTES II
10 20 30TENTHS0
2 3 4 5 7 86
A
1 2 3
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BB
C
D
7 8623456
c
DWG SIZE REVISION
FOR
DRAWING NO.
FILENAME:
DWG TYPE:
JOB NO:
DATE:
SCALE:DES:
CHKD:
ENGR:
APPD:
22.0"x34.0"
ANSI D
SEAL
DFTR:
TITLE
N.C. ENGINEERING LICENSE NO.
F-0342
.DWG
FILENAME:BC-159-007-011_E&S DETAILS AND NOTES.DWGFILENAME:
BELEWS CREEK STEAM STATION
STOKES COUNTY, NORTH CAROLINA
AS SHOWN
60616600
1-29-20
NSF
NSF
DC
DC
DC
1 11
BC-159 EAST PINE HALL ROAD FUTURE STORMWATER REROUTE
NOT FOR CONSTRUCTION
ISSUED FOR PERMIT SUBMITTAL
REVISION 1 (4/14/2020)
Erosion and Sediment Control Plan
Belews Creek BC-159 East Pine Hall Road Stormwater Reroute Page 28

Appendix C
Calculations

REVISION 1 (4/14/2020)
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FIGURE 1
FIGURE 1FIGURE 1
PRE-CONSTRUCTION
0 100 200 300
(IN FEET)GRAPHIC SCALE
10 20 30TENTHS0
2 3 4 5 7 86
A
1 2 3
A
BB
C
D
7 8623456
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DWG SIZE REVISION
FOR
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FILENAME:
DWG TYPE:
JOB NO:
DATE:
SCALE:DES:
CHKD:
ENGR:
APPD:
22.0"x34.0"
ANSI D
SEAL
DFTR:
TITLE
N.C. ENGINEERING LICENSE NO.
F-0342
.DWG
FILENAME:BC-159-002-006-EX AND PROP_PLAN-PROF.DWGFILENAME:
BELEWS CREEK STEAM STATION
STOKES COUNTY, NORTH CAROLINA
ISSUED FOR REVIEW
AS SHOWN
60616600
1-15-20
NSF
NSF
DC
DC
DC
1 11
BC-159 EAST PINE HALL ROAD FUTURE STORMWATER REROUTE
NOT FOR CONSTRUCTION
DRAFT070140210
(IN FEET)HORIZONTAL SCALE
0 14 28 42
(IN FEET)VERTICAL SCALE
Feet
0 40 80
REVISION 1 (4/14/2020)
XXX
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FIGURE 2
FIGURE 2FIGURE 2
POST-CONSTRUCTION
0 100 200 300
(IN FEET)GRAPHIC SCALE
10 20 30TENTHS0
2 3 4 5 7 86
A
1 2 3
A
BB
C
D
7 8623456
c
DWG SIZE REVISION
FOR
DRAWING NO.
FILENAME:
DWG TYPE:
JOB NO:
DATE:
SCALE:DES:
CHKD:
ENGR:
APPD:
22.0"x34.0"
ANSI D
SEAL
DFTR:
TITLE
N.C. ENGINEERING LICENSE NO.
F-0342
.DWG
FILENAME:BC-159-002-006-EX AND PROP_PLAN-PROF.DWGFILENAME:
BELEWS CREEK STEAM STATION
STOKES COUNTY, NORTH CAROLINA
ISSUED FOR REVIEW
AS SHOWN
60616600
1-15-20
NSF
NSF
DC
DC
DC
1 11
BC-159 EAST PINE HALL ROAD FUTURE STORMWATER REROUTE
NOT FOR CONSTRUCTION
DRAFT
Feet
0 40 80
REVISION 1 (4/14/2020)
2S
Pre-Construction
3S
Post-Construction
6S
Upstream of Prop 36"
HDPE (1)
7S
Upstream of Prop 36"
HDPE (2)
9S
Upstream of Prop 36"
HDPE (3)
8R
channel through woods
10R
riprap channel
11P
CB
36" HDPE
5L
Discharge Channel
Routing Diagram for HydroCAD model
Prepared by AECOM, Printed 1/10/2020
HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Subcat Reach Pond Link
REVISION 1 (4/14/2020)
BC-159 E&S Calcs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"HydroCAD model
Printed 1/10/2020Prepared by AECOM
Page 2HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Summary for Subcatchment 2S: Pre-Construction
Runoff = 5.40 cfs @ 12.12 hrs, Volume= 0.366 af, Depth> 2.20"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"
Area (ac) CN Description
2.000 65 Woods/grass comb., Fair, HSG B
2.000 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
17.6 100 0.0300 0.09 Sheet Flow, sheet
Woods: Light underbrush n= 0.400 P2= 3.43"
1.5 200 0.2000 2.24 Shallow Concentrated Flow, shallow conc
Woodland Kv= 5.0 fps
19.1 300 Total
Subcatchment 2S: Pre-Construction
Runoff
Hydrograph
Time (hours)
201918171615141312111098765Flow (cfs)6
5
4
3
2
1
0
Type II 24-hr
25-yr 24-hr Rainfall=6.10"
Runoff Area=2.000 ac
Runoff Volume=0.366 af
Runoff Depth>2.20"
Flow Length=300'
Tc=19.1 min
CN=65
5.40 cfs
REVISION 1 (4/14/2020)
BC-159 E&S Calcs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"HydroCAD model
Printed 1/10/2020Prepared by AECOM
Page 3HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Summary for Subcatchment 3S: Post-Construction
Runoff = 5.40 cfs @ 12.12 hrs, Volume= 0.366 af, Depth> 2.20"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"
Area (ac) CN Description
2.000 65 Woods/grass comb., Fair, HSG B
2.000 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
17.6 100 0.0300 0.09 Sheet Flow, sheet
Woods: Light underbrush n= 0.400 P2= 3.43"
1.5 200 0.2000 2.24 Shallow Concentrated Flow, shallow conc
Woodland Kv= 5.0 fps
19.1 300 Total
Subcatchment 3S: Post-Construction
Runoff
Hydrograph
Time (hours)
201918171615141312111098765Flow (cfs)6
5
4
3
2
1
0
Type II 24-hr
25-yr 24-hr Rainfall=6.10"
Runoff Area=2.000 ac
Runoff Volume=0.366 af
Runoff Depth>2.20"
Flow Length=300'
Tc=19.1 min
CN=65
5.40 cfs
REVISION 1 (4/14/2020)
BC-159 E&S Calcs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"HydroCAD model
Printed 1/10/2020Prepared by AECOM
Page 4HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Summary for Subcatchment 6S: Upstream of Prop 36" HDPE (1)
Runoff = 31.82 cfs @ 12.05 hrs, Volume= 1.827 af, Depth> 3.59"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"
Area (ac) CN Description
* 6.100 80 Landfill
6.100 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
10.6 100 0.0150 0.16 Sheet Flow, sheet
Grass: Short n= 0.150 P2= 3.43"
1.9 100 0.0150 0.86 Shallow Concentrated Flow, shallow conc
Short Grass Pasture Kv= 7.0 fps
0.8 200 0.3300 4.02 Shallow Concentrated Flow, shallow conc
Short Grass Pasture Kv= 7.0 fps
13.3 400 Total
Subcatchment 6S: Upstream of Prop 36" HDPE (1)
Runoff
Hydrograph
Time (hours)
201918171615141312111098765Flow (cfs)34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
25-yr 24-hr Rainfall=6.10"
Runoff Area=6.100 ac
Runoff Volume=1.827 af
Runoff Depth>3.59"
Flow Length=400'
Tc=13.3 min
CN=80
31.82 cfs
REVISION 1 (4/14/2020)
BC-159 E&S Calcs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"HydroCAD model
Printed 1/10/2020Prepared by AECOM
Page 5HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Summary for Subcatchment 7S: Upstream of Prop 36" HDPE (2)
Runoff = 24.73 cfs @ 12.08 hrs, Volume= 1.474 af, Depth> 1.79"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"
Area (ac) CN Description
9.900 60 Woods, Fair, HSG B
9.900 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
14.4 100 0.0500 0.12 Sheet Flow, sheet
Woods: Light underbrush n= 0.400 P2= 3.43"
Subcatchment 7S: Upstream of Prop 36" HDPE (2)
Runoff
Hydrograph
Time (hours)
201918171615141312111098765Flow (cfs)26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
25-yr 24-hr Rainfall=6.10"
Runoff Area=9.900 ac
Runoff Volume=1.474 af
Runoff Depth>1.79"
Flow Length=100'
Slope=0.0500 '/'
Tc=14.4 min
CN=60
24.73 cfs
REVISION 1 (4/14/2020)
BC-159 E&S Calcs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"HydroCAD model
Printed 1/10/2020Prepared by AECOM
Page 6HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Summary for Subcatchment 9S: Upstream of Prop 36" HDPE (3)
Runoff = 30.14 cfs @ 11.91 hrs, Volume= 1.323 af, Depth> 4.54"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"
Area (ac) CN Description
3.500 89 Paved roads w/open ditches, 50% imp, HSG B
1.750 50.00% Pervious Area
1.750 50.00% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
1.0 100 0.0330 1.74 Sheet Flow, sheet
Smooth surfaces n= 0.011 P2= 3.43"
0.6 200 0.0750 5.56 Shallow Concentrated Flow, shallow conc
Paved Kv= 20.3 fps
1.6 300 Total
Subcatchment 9S: Upstream of Prop 36" HDPE (3)
Runoff
Hydrograph
Time (hours)
201918171615141312111098765Flow (cfs)32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Type II 24-hr
25-yr 24-hr Rainfall=6.10"
Runoff Area=3.500 ac
Runoff Volume=1.323 af
Runoff Depth>4.54"
Flow Length=300'
Tc=1.6 min
CN=89
30.14 cfs
REVISION 1 (4/14/2020)
BC-159 E&S Calcs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"HydroCAD model
Printed 1/10/2020Prepared by AECOM
Page 7HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Summary for Reach 8R: channel through woods
Inflow Area = 16.000 ac, 0.00% Impervious, Inflow Depth > 2.48" for 25-yr 24-hr event
Inflow = 56.29 cfs @ 12.06 hrs, Volume= 3.301 af
Outflow = 49.06 cfs @ 12.21 hrs, Volume= 3.275 af, Atten= 13%, Lag= 8.8 min
Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs
Max. Velocity= 3.23 fps, Min. Travel Time= 5.2 min
Avg. Velocity = 1.28 fps, Avg. Travel Time= 13.0 min
Peak Storage= 15,381 cf @ 12.12 hrs
Average Depth at Peak Storage= 1.39'
Bank-Full Depth= 3.00' Flow Area= 72.0 sf, Capacity= 389.85 cfs
0.00' x 3.00' deep channel, n= 0.080 Earth, long dense weeds
Side Slope Z-value= 8.0 '/' Top Width= 48.00'
Length= 1,000.0' Slope= 0.0500 '/'
Inlet Invert= 835.00', Outlet Invert= 785.00'
‡
Reach 8R: channel through woods
Inflow
Outflow
Hydrograph
Time (hours)
201918171615141312111098765Flow (cfs)60
55
50
45
40
35
30
25
20
15
10
5
0
Inflow Area=16.000 ac
Avg. Flow Depth=1.39'
Max Vel=3.23 fps
n=0.080
L=1,000.0'
S=0.0500 '/'
Capacity=389.85 cfs
56.29 cfs
49.06 cfs
REVISION 1 (4/14/2020)
BC-159 E&S Calcs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"HydroCAD model
Printed 1/10/2020Prepared by AECOM
Page 8HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Summary for Reach 10R: riprap channel
Inflow Area = 19.500 ac, 8.97% Impervious, Inflow Depth > 2.83" for 25-yr 24-hr event
Inflow = 52.31 cfs @ 12.21 hrs, Volume= 4.598 af
Outflow = 50.20 cfs @ 12.30 hrs, Volume= 4.577 af, Atten= 4%, Lag= 5.5 min
Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs
Max. Velocity= 2.14 fps, Min. Travel Time= 3.1 min
Avg. Velocity = 0.84 fps, Avg. Travel Time= 7.9 min
Peak Storage= 9,409 cf @ 12.25 hrs
Average Depth at Peak Storage= 2.76'
Bank-Full Depth= 6.00' Flow Area= 90.0 sf, Capacity= 302.27 cfs
3.00' x 6.00' deep channel, n= 0.080 Earth, long dense weeds
Side Slope Z-value= 2.0 '/' Top Width= 27.00'
Length= 400.0' Slope= 0.0075 '/'
Inlet Invert= 775.00', Outlet Invert= 772.00'
Reach 10R: riprap channel
Inflow
Outflow
Hydrograph
Time (hours)
201918171615141312111098765Flow (cfs)55
50
45
40
35
30
25
20
15
10
5
0
Inflow Area=19.500 ac
Avg. Flow Depth=2.76'
Max Vel=2.14 fps
n=0.080
L=400.0'
S=0.0075 '/'
Capacity=302.27 cfs
52.31 cfs
50.20 cfs
REVISION 1 (4/14/2020)
BC-159 E&S Calcs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"HydroCAD model
Printed 1/10/2020Prepared by AECOM
Page 9HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Summary for Pond 11P: 36" HDPE
Inflow Area = 19.500 ac, 8.97% Impervious, Inflow Depth > 2.82" for 25-yr 24-hr event
Inflow = 50.20 cfs @ 12.30 hrs, Volume= 4.577 af
Outflow = 50.20 cfs @ 12.30 hrs, Volume= 4.577 af, Atten= 0%, Lag= 0.0 min
Primary = 50.20 cfs @ 12.30 hrs, Volume= 4.577 af
Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs
Peak Elev= 775.68' @ 12.30 hrs
Device Routing Invert Outlet Devices
#1 Primary 772.00'36.0" Round Culvert
L= 250.0' CPP, end-section conforming to fill, Ke= 0.500
Inlet / Outlet Invert= 772.00' / 770.00' S= 0.0080 '/' Cc= 0.900
n= 0.013, Flow Area= 7.07 sf
Primary OutFlow Max=50.07 cfs @ 12.30 hrs HW=775.66' (Free Discharge)
1=Culvert (Inlet Controls 50.07 cfs @ 7.08 fps)
Pond 11P: 36" HDPE
Inflow
Primary
Hydrograph
Time (hours)
201918171615141312111098765Flow (cfs)55
50
45
40
35
30
25
20
15
10
5
0
Inflow Area=19.500 ac
Peak Elev=775.68'
36.0"
Round Culvert
n=0.013
L=250.0'
S=0.0080 '/'
50.20 cfs
50.20 cfs
REVISION 1 (4/14/2020)
BC-159 E&S Calcs
Type II 24-hr 25-yr 24-hr Rainfall=6.10"HydroCAD model
Printed 1/10/2020Prepared by AECOM
Page 10HydroCAD® 10.00-25 s/n 01723 © 2019 HydroCAD Software Solutions LLC
Summary for Link 5L: Discharge Channel
Inflow Area = 21.500 ac, 8.14% Impervious, Inflow Depth > 2.76" for 25-yr 24-hr event
Inflow = 53.38 cfs @ 12.29 hrs, Volume= 4.943 af
Primary = 53.38 cfs @ 12.29 hrs, Volume= 4.943 af, Atten= 0%, Lag= 0.0 min
Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs
53 Point manual hydrograph, To= 0.00 hrs, dt= 1.00 hrs, cfs =
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
Link 5L: Discharge Channel
Inflow
Primary
Hydrograph
Time (hours)
201918171615141312111098765Flow (cfs)55
50
45
40
35
30
25
20
15
10
5
0
Inflow Area=21.500 ac
Manual Hydrograph
53.38 cfs
53.38 cfs
REVISION 1 (4/14/2020)
Culvert Analysis Report
Culvert-1
Title: BC159
c:\...\bc-159 (desktop)\h&h calcs\project1.cvm
01/10/20 02:41:51 PM
AECOM-AMER-USA
© Bentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA [phone]
Project Engineer: Nicholas_Fischer
CulvertMaster v3.3 [03.03.00.04]
Page 1 of 1
Culvert Summary
Computed Headwater Elevation 775.69 ft Discharge 50.00 cfs
Inlet Control HW Elev. 775.69 ft Tailwater Elevation N/A ft
Outlet Control HW Elev. 775.68 ft Control Type Inlet Control
Headwater Depth/Height 1.23
Grades
Upstream Invert 772.00 ft Downstream Invert 770.00 ft
Length 250.00 ft Constructed Slope 0.008000 ft/ft
Hydraulic Profile
Profile S2 Depth, Downstream 1.98 ft
Slope Type Steep Normal Depth 1.98 ft
Flow Regime Supercritical Critical Depth 2.30 ft
Velocity Downstream 10.09 ft/s Critical Slope 0.005471 ft/ft
Section
Section Shape Circular Mannings Coefficient 0.012
Section MaterialCorrugated HDPE (Smooth Interior) Span 3.00 ft
Section Size 36 inch Rise 3.00 ft
Number Sections 1
Outlet Control Properties
Outlet Control HW Elev. 775.68 ft Upstream Velocity Head 1.15 ft
Ke 0.20 Entrance Loss 0.23 ft
Inlet Control Properties
Inlet Control HW Elev. 775.69 ft Flow Control Submerged
Inlet Type Beveled ring, 33.7° bevels Area Full 7.1 ft²
K 0.00180 HDS 5 Chart 3
M 2.50000 HDS 5 Scale B
C 0.02430 Equation Form 1
Y 0.83000
REVISION 1 (4/14/2020)
Hydraulic Analysis Report
Project Data
Project Title:
Designer:
Project Date: Monday, November 25, 2019
Project Units: U.S. Customary Units
Notes:
Channel Analysis: Channel Analysis
Notes:
Input Parameters
Channel Type: Trapezoidal
Side Slope 1 (Z1): 3.0000 ft/ft
Side Slope 2 (Z2): 3.0000 ft/ft
Channel Width: 5.0000 ft
Longitudinal Slope: 0.1000 ft/ft
Manning's n: 0.0660
Lining Type: Rock Riprap - 300 mm (12-inch)
Flow: 54.0000 cfs
Result Parameters
Depth: 1.0970 ft
Area of Flow: 9.0952 ft^2
Wetted Perimeter: 11.9380 ft
Hydraulic Radius: 0.7619 ft
Average Velocity: 5.9372 ft/s
Top Width: 11.5820 ft
Froude Number: 1.1807
Critical Depth: 1.2019 ft
Critical Velocity: 5.2206 ft/s
Critical Slope: 0.0700 ft/ft
Critical Top Width: 12.21 ft
Calculated Max Shear Stress: 6.8453 lb/ft^2
Calculated Avg Shear Stress: 4.7541 lb/ft^2
REVISION 1 (4/14/2020)
Channel Lining Analysis: Channel Lining Design Analysis
Notes:
Lining Input Parameters
Channel Lining Type: Riprap, Cobble, or Gravel
D50: 1.16 ft
Riprap Specific Weight: 165 lb/ft^3
Water Specific Weight: 62.4 lb/ft^3
Riprap Shape is Angular
Safety Factor: 1
Calculated Safety Factor: 1.43498
Lining Results
Angle of Repose: 41.9 degrees
Relative Flow Depth: 0.676973
Manning's n method: Bathurst
Manning's n: 0.0660343
Channel Bottom Shear Results
V*: 1.87945
Reynold's Number: 179142
Shield's Parameter: 0.136573
shear stress on channel bottom: 6.84526 lb/ft^2
Permissible shear stress for channel bottom: 12.127 lb/ft^2
channel bottom is stable
Stable D50: 0.939589 ft
Channel Side Shear Results
K1: 0.868
K2: 1
Kb: 1.22004
shear stress on side of channel: 6.84526 lb/ft^2
Permissible shear stress for side of channel: 12.127 lb/ft^2
Stable Side D50: 0.815563 lb/ft^2
side of channel is stable
REVISION 1 (4/14/2020)
Channel Bend Shear Results
Curvature Radius: 90 ft
No further correction will occur once R/T > 10
shear stress on bottom of channel in bend: 8.35148 lb/ft^2
bottom of bend of the channel is stable
Length of Protection beyond PT: 6.61569 ft
Additional Freeboard required because of Superelevation: 0.140993 ft
Channel Bend Side Shear Results
shear stress on side of channel in bend: 7.24909 lb/ft^2
The side of the bend of the channel is stable
Channel Lining Stability Results
the channel is stable
Channel Summary
Name of Selected Channel: Channel Analysis
REVISION 1 (4/14/2020)
Erosion and Sediment Control Plan
Belews Creek BC-159 East Pine Hall Road Stormwater Reroute Page 29

Appendix D
USDA / NRCS Soils Report

REVISION 1 (4/14/2020)
Soil Map—Stokes County, North Carolina
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
12/11/2019
Page 1 of 340152004015300401540040155004015600401570040158004015900401600040161004016200401630040164004016500401660040167004015200401530040154004015500401560040157004015800401590040160004016100401620040163004016400401650040166004016700583500583600583700583800583900584000584100584200584300584400584500584600
583500 583600 583700 583800 583900 584000 584100 584200 584300 584400 584500 584600
36° 17' 30'' N 80° 4' 13'' W36° 17' 30'' N80° 3' 26'' W36° 16' 40'' N
80° 4' 13'' W36° 16' 40'' N
80° 3' 26'' WN
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
0 350 700 1400 2100
Feet
0 100 200 400 600
Meters
Map Scale: 1:7,610 if printed on A portrait (8.5" x 11") sheet.
Soil Map may not be valid at this scale.
REVISION 1 (4/14/2020)
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at
1:24,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Stokes County, North Carolina
Survey Area Data: Version 19, Sep 16, 2019
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Mar 27, 2015—Oct
16, 2017
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Soil Map—Stokes County, North Carolina
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
12/11/2019
Page 2 of 3REVISION 1 (4/14/2020)
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
FpB2 Fairview-Poplar Forest
complex, 2 to 8 percent
slopes, moderately eroded
4.2 2.9%
FpC2 Fairview-Poplar Forest
complex, 8 to 15 percent
slopes, moderately eroded
37.0 24.9%
FpD2 Fairview-Poplar Forest
complex, 15 to 25 percent
slopes, moderately eroded
19.6 13.2%
FrB Fairview-Poplar Forest-Urban
land complex, 2 to 8 percent
slopes
0.6 0.4%
RpE Rhodhiss, Fairview, and Stott
Knob soils, 25 to 60 percent
slopes
6.7 4.5%
Ud Udorthents, loamy 78.2 52.6%
W Water 2.1 1.4%
Totals for Area of Interest 148.6 100.0%
Soil Map—Stokes County, North Carolina
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
12/11/2019
Page 3 of 3
REVISION 1 (4/14/2020)