20070721 Ver 2_Design/Maps/Site Plans Revised_20221115

NORTH FORK RESERVOIR DREDGING PLAN
HENDERSON COUNTY, NORTH CAROLINA
USACE ACTION ID No.: SAW 2020-01908
NC DWR No.: 07-0721 V2
USFS SPECIAL USE PERMIT #:
CITY OF HENDERSONVILLE CONTRACT #: 19010
PROJECT
DIRECTORY
PROJECT
OWNER
CITY
OF
HENDERSONVILLE
HeriZr.scqWiffeUtilities
Waterfeel-
Adam
(828)
[e-mail]
Steurer,
Engineer
233-3207
PE
ENGINEERING
JENNINGS
ENVIRONMENTAL
PLLC
Greg
Jennings,
PhD,
PE
Jennings
Environmental
President
(919)
600-4790
[e-mail]
ENV.
PERMITTING
CLEARWATER
ENVIRONMENTAL
INC.
Clement
Riddle
3 7 -
President
(919)
698-9800
[e-mail]
SURVEYING
COLE
SURVEYING
AND
DESIGN,
PA
COLE SURVEYING it, OE51GN
Wes
Director
(828)
[e-mail]
Cole
251-7025
of Surveying
SHEET
INDEX
COVER SHEET
0.1
PROJECT NOTES AND SPECIFICATIONS
0.2
EXISTING SITE CONDITIONS
1.1
DREDGING OPERATIONS PLAN
2.1 - 2.4
DREDGING OPERATIONS DETAILS
3.1 - 3.3
STABILIZATION PLAN
4.1 - 4.2
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FINAL DRAWING
RELEASED FOR CONSTRUCTION
OCTOBER 14, 2022
NORTH FORK M
HENDERSON COUNTY - NORTH CAROLINA
COVER SHEET
FINAL
DRAWING
REVISIONS: 1
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
1" = 40'
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
0.1

GENERAL PROJECT NOTES AND
SPECIFICATIONS
1. DEFINITIONS:
1.1. CONSTRUCTION DOCUMENTS: THE CONTRACT AND
APPLICABLE DRAWINGS, DETAILS, SPECIFICATIONS, PERMIT(S),
AND/OR ANY OTHER DOCUMENTS (MEETING MINUTES, PUNCH
LISTS, BID TABS, ETC.) FOR COMPLETE INFORMATION ABOUT
THE REQUIRED WORK. ANY ONE OF THESE PARTS OF THE MAY
NOT CONTAIN ALL OF THE INFORMATION REQUIRED TO
COMPLETE THE PROJECT WORK.
1.2. PROJECT OWNER: CITY OF HENDERSONVILLE
1.3. ENGINEER: JENNINGS ENVIRONMENTAL PLLC
1.4. ENVIRONMENTAL CONSULTANT: CLEARWATER
ENVIRONMENTAL, INC
1.5. SURVEYOR: COLE SURVEYING AND DESIGN, PA
2. THE WORK ON THIS PROJECT SHALL ADHERE TO THE FOLLOWING
SPECIFICATIONS, STANDARDS AND/OR REGULATIONS:
2.1. NC DOT STANDARDS AND SPECIFICATIONS
2.2. NC DEQ'S "EROSION AND SEDIMENT CONTROL PLANNING AND
DESIGN MANUAL" (2013)
2.3. GENERAL, REGIONAL AND SPECIAL CONDITIONS OF USACE'S
NATIONWIDE PERMIT 3 (SAW-2021-00253).
2.4. GENERAL AND SPECIAL CONDITIONS OF NCDWR'S 401 WATER
QUALITY CERTIFICATION (NCDWR#: 07-0721 V2).
2.5. USFS SPECIAL USE PERMIT #:
3. NOT ALL EXISTING UTILITIES ARE SHOWN. SOME LOCATIONS MAY
BE ARE APPROXIMATE. THE CONTRACTOR IS RESPONSIBLE FOR ALL
UTILITY LOCATION AND COORDINATION. ANY UTILITIES SHOWN ON
THE CONSTRUCTION DOCUMENTS ARE FOR INFORMATIONAL
PURPOSES ONLY AND IN NO WAY RELIEVES THE CONTRACTOR
FROM COORDINATING, VERIFYING AND PROTECTING EXISTING
UTILITIES. ALL UTILITIES SHALL BE PROTECTED AND REMAIN ACTIVE
UNLESS OTHERWISE NOTED.
4. THE CONTRACTOR IS RESPONSIBLE FOR THE PROJECT AREA UNTIL
COMPLETION AND FINAL ACCEPTANCE BY THE CITY. THE
CONTRACTOR SHALL TAKE ALL PRECAUTIONS NECESSARY AND
SHALL BEAR ALL RISK OF LOSS OR DAMAGE. THE CONTRACTOR
WILL FURNISH ALL NECESSARY EQUIPMENT, TOOLS, LABOR,
TRANSPORTATION, AND SUPERVISION TO COMPLETE THE WORK
ACCORDING TO THESE SPECIFICATIONS AND APPLICABLE FEDERAL,
STATE AND LOCAL LAWS AND REGULATIONS. THE CONTRACTOR
SHALL CONFINE ALL ACTIVITIES, INCLUDING EQUIPMENT STORAGE,
TO THE LIMITS OF DISTURBANCE, STAGING AREAS, AND
DESIGNATED CONSTRUCTION ACCESS POINTS.
5. THE CONTRACTOR SHALL MAINTAIN ALL LIGHTS, GUARDS, SIGNS,
TEMPORARY PASSAGES, OR OTHER PRECAUTIONS NECESSARY FOR
THE SAFETY OF ALL PERSONS AND ON GOING OPERATIONS AT THE
SITE. THE CONTRACTOR SHALL ABIDE BY ALL SAFETY RULES AND
CONSTRUCTION CONDITIONS REQUIRED BY GOVERNMENTAL
AUTHORITIES AND OTHER ENTITIES, INCLUDING RAILROADS, SO
THE PUBLIC IS SAFEGUARDED FROM ACCIDENTS AND DELAYS.
GUARDS AND FLAGS REQUIRED BY GOVERNMENTAL OR RAILROAD
AUTHORITIES SHALL BE PROVIDED AT THE CONTRACTOR'S EXPENSE,
UNLESS DIRECTED OTHERWISE BY THE DESIGNATED
REPRESENTATIVE. THE CONTRACTOR SHALL AT NO TIME
COMPROMISE EITHER SAFETY OR ENVIRONMENTAL
REQUIREMENTS.
6. THE CONTRACTOR SHALL ONLY USE ACCESS POINTS, ACCESS PATHS
AND STAGING AREAS SHOWN ON THE DRAWINGS. ANY ALTERNATE
ACCESS PLANNED BY THE CONTRACTOR SHALL BE APPROVED BY
THE CITY PRIOR TO USE. ANY NEW ACCESS ROUTES OR STAGING
AREAS NEEDED FOR STREAM RELOCATION ACTIVITIES MUST FIRST
BE FLAGGED AND MAPPED FOR EVALUATION AND WRITTEN
APPROVAL BY THE CITY MUST BE OBTAINED PRIOR TO ANY
DISTURBANCE ACTIVITIES.
7. NO NON -PERMITTED FILL IN WETLANDS MAY OCCUR. ALL
EXCAVATED SEDIMENT SHALL BE DISPOSED OF IN THE DESIGNATED
FILL AREA AT THE HENDERSONVILLE WATER TREATMENT PLANT.
8. ANY ELECTRONIC OR COMPUTER -AIDED DESIGN (COLLECTIVELY
REFERRED TO AS "CAD") FILES ARE SUPPLIED AS A MATTER OF
COURTESY ONLY. THE ENGINEER MAKES NO REPRESENTATION,
WARRANTY, OR GUARANTEE AS TO THE ACCURACY, RELIABILITY,
SUITABILITY, OR FUNCTIONALITY OF SUCH FILES, AND ANY SUCH
WARRANTIES THAT MAY OTHERWISE BE IMPLIED BY LAW OR
STATUTE ARE HEREBY EXPRESSLY DISCLAIMED. CAD FILES DO NOT
INCLUDE A PROFESSIONAL ENGINEER'S STAMP AND ONLY
DRAWINGS WITH SUCH STAMP AND THE ENGINEER'S SIGNATURE
ARE TO BE CONSIDERED AS TRUE AND FINAL. ANY PERSON(S) OR
ORGANIZATION(S) MAKING USE OF OR RELYING UPON CAD FILES IS
SOLELY RESPONSIBLE FOR CONFIRMING THE ACCURACY AND
COMPLETENESS OF THE INFORMATION INCLUDED IN SUCH FILES,
INCLUDING, BUT NOT LIMITED TO, CONFORMANCE WITH THE
CURRENT SEALED DRAWINGS AND SPECIFICATIONS, AND ACCEPTS
ALL RESPONSIBILITY AND RISK ASSOCIATED WITH THE DOWNLOAD
AND USE OF SUCH FILES. THE ENGINEER WILL HAVE NO LIABILITY
OR RESPONSIBILITY TO THE RECIPIENT AND/OR USER OR ANY
OTHER PERSON OR ENTITY FOR ANY LIABILITY, LOSS, OR DAMAGE
CAUSED OR ALLEGED TO BE CAUSED DIRECTLY OR INDIRECTLY BY
USE OF CAD FILES. IN THE EVENT OF A CONFLICT OR DISCREPANCY
BETWEEN THE SEALED DRAWINGS AND SPECIFICATIONS AND CAD
FILES, THE SEALED DRAWINGS AND SPECIFICATIONS SHALL
CONTROL.
TOPOGRAPHIC NOTES AND SPECIFICATIONS
8. COLE SURVEYING, PA ESTABLISHED SURVEY CONTROL AT THE
NORTH FORK RESERVOIR SITE AND PROVIDED A BASE DRAWING
AND SITE MAP TO THE CITY IN OCTOBER 2020.
9. HORIZONTAL DATUM IS NAD83(2011) & VERTICAL DATUM IS
NAVD88. ALL COORDINATES ARE BASED ON NAD83(2011) AND ALL
ELEVATIONS ARE BASED ON NAVD88.
10. EXISTING GROUND CONTOURS ARE BASED ON THE NCFMP'S 2016
QL1 LiDAR SURVEY. ADDITIONAL BATHYMETRY DATA WITHIN THE
RESERVOIR WAS CURATED BY JENNINGS ENVIRONMENTAL PLLC.
EROSION AND SEDIMENTATION CONTROL
(E&SC) NOTES AND SPECIFICATIONS
11. DURING PROJECT IMPLEMENTATION, EROSION CONTROL
MEASURES SHALL BE IMPLEMENTED TO REDUCE SEDIMENTATION
INTO BIG CREEK, FLETCHER CREEK, N. FORK RESERVOIR AND N.
FORK MILLS RIVER. EFFORTS SHALL BE MADE TO LIMIT AND
EXPEDITE EQUIPMENT TIME SPENT WORKING IN THE RESERVOIR.
WHEN POSSIBLE, WORK WILL OCCUR FROM THE TEMPORARY
ACCESS RAMPS.
12. CONSTRUCTION WORK WITHIN THE RESERVOIR SHALL OCCUR
BETWEEN FEBRUARY 16 AND OCTOBER 14. TO MINIMIZE IMPACTS
TO TROUT AND HELLBENDER SPAWNING SEASONS IN FLETCHER
CREEK, BIG CREEK, N. FORK RESERVOIR AND N. FORK MILLS RIVER.
13. THE CONTRACTOR SHALL CONTACT NORTH CAROLINA WILDLIFE
RESOURCE COMMISSION AT LEAST TWO (2) WEEKS PRIOR TO
MOBILIZATION AND CONSTRUCTION ACTIVITIES TO SCHEDULE A
PRE -CONSTRUCTION MEETING WITH NCWRC, THE CONTRACTOR
AND THE ENGINEER.
14. SENSITIVE AQUATIC SPECIES MAY BE LOCATED WITHIN THE
PROJECT AREA. NCWRC AND NCFS WILL PERFORM A SURVEY TO
DETERMINE IF RELOCATION OF SENSITIVE AQUATIC ORGANISMS IS
NECESSARY.
15. EQUIPMENT SHALL BE WELL -MAINTAINED, CLEANED PRIOR TO
MOBILIZATION, AND CHECKED DAILY FOR LEAKS OF PETROLEUM
PRODUCTS.
16. FUELING SHALL BE PERFORMED IN THE DESIGNATED STAGING
AREA AT LEAST 50 FEET AWAY FROM SURFACE WATERS.
17. CONSTRUCTION SCHEDULING AND STAGING SHALL BE TIMED TO
EFFICIENTLY COMPLETE THE WORK AND MINIMIZE THE AMOUNT
OF TIME SPENT WORKING IN THE RESERVOIR.
18. TO THE EXTENT POSSIBLE, DREDGING OPERATIONS SHALL BE TIMED
TO OCCUR DURING TIMES OF LOW FLOW.
19. DREDGING OPERATIONS SHALL NOT OCCUR IN THE RESERVOIR
DURING WET WEATHER OR STORMFLOWS.
20. AN APPROPRIATELY SIZED LONG REACH EXCAVATOR SHALL BE
UTILIZED TO PREVENT EXCESSIVE TRACKING AND SEDIMENT
DISTURBANCE WITHIN THE RESERVOIR.
21. ALL DREDGED SEDIMENT SHALL BE HAULED TO AND DISPOSED OF
IN THE DESIGNATED FILL AREA AT THE CITY OF HENDERSONVILLE
WATER TREATMENT PLANT AS SHOWN ON SHEET 2.3.
22. ANY TURBID WATER GENERATED IN THE RESERVOIR DURING
DREDGING OPERATIONS CAN BE DISCHARGED INTO THE WATER
INTAKE FOR TREATMENT AT THE CITY OF HENDERSONVILLE WATER
TREATMENT PLANT.
23. THE N. FORK MILLS RIVER SHALL BE VISUALLY MONITORED FOR
TURBIDITY AND SEDIMENTATION THROUGHOUT THE DURATION OF
THE PROJECT. THE TURBIDITY STANDARD OF 10 NTUS
(NEPHELOMETRIC TURBIDITY UNITS) SHALL NOT BE EXCEEDED IN
THE NORTH FORK MILLS RIVER AS DESCRIBED IN TITLE 15A NCAC
02B .0200.
24. SITE ACCESS AND STAGING
24.1. ACCESS TO THE N. FORK RESERVOIR SHALL OCCUR VIA WASHE
CREEK ROAD (FS 5000) AND HENDERSONVILLE RESERVOIR
ROAD.
24.2. A DESIGNATED STAGING AREA SHALL BE ESTABLISHED OFF OF
THE EXISTING GRAVEL ROAD NEAR THE RESERVOIR AS SHOWN
IN THE DRAWINGS.
24.3. CONSTRUCTION ROUTES WITHIN THE LOD SHALL UTILIZE
EXISTING GRAVEL ROADS, ACCESS RAMPS AND OCCUR
OUTSIDE THE 25' TROUT BUFFER TO THE MAXIMUM EXTENT
PRACTICAL. ALL ROCK USED FOR TEMPORARY ACCESS RAMPS
SHALL BE REMOVED FROM THE RESERVOIR AND WORK AREA.
25. SILT FENCE AND EROSION CONTROL WATTLES
25.1. PRIOR TO ANY DREDGING AND HAULING, SILT FENCE AND
EROSION CONTROL WATTLES SHALL BE INSTALLED AS SHOWN
IN THE DRAWINGS. AT THE END OF THE PROJECT, WHEN ALL
DISTURBED AREAS HAVE BEEN STABILIZED, ALL SILT FENCE
AND WATTLES SHALL BE REMOVED. MATERIAL
SPECIFICATIONS, INSTALLATION PROCEDURES, AND
MAINTENANCE SHALL CONFORM TO SECTION 6.62 OF THE
NORTH CAROLINA SEDIMENT CONTROL PLANNING AND
DESIGN MANUAL.
26. TRUCK HAULING SEQUENCE
26.1. TRUCKS SHALL BE USED TO HAUL DREDGED MATERIAL FROM
N. FORK RESERVOIR TO THE HENDERSONVILLE WATER
TREATMENT PLANT. THE TYPE, SIZE AND CAPACITY OF THE
TRUCKS SHALL BE SIZED TO EFFICIENTLY HAUL DREDGE
MATERIAL AND SHALL MEET ALL USFS, LOCAL, STATE AND
FEDERAL ROAD AND BRIDGE CROSSING LOAD LIMITS.
26.2. TRUCKS SHALL USE THE EXISTING GRAVEL TURN OUTS AND
STAGING AREA TO TURN AROUND AND WAIT FOR LOADING.
26.3. ALL TRUCKS SHALL TRANSIT TO AND FROM N. FORK RESERVOIR
AS A CONVOY WITH ADEQUATE SAFETY PRECAUTIONS.
26.4. TRUCKS SHALL NOT BE OVERLOADED.
27. MAINTENANCE OF EROSION AND SEDIMENTATION CONTROL
MEASURES
27.1. ALL EROSION CONTROL AND SEDIMENTATION MEASURES WILL
BE INSPECTED DAILY AND AFTER SIGNIFICANT RAIN EVENTS BY
THE ON SITE ENGINEER AND THE CONTRACTOR. THE
CONTRACTOR WILL ASSURE THAT ALL INSTALLATIONS ARE
FUNCTIONING PROPERLY AT THE END OF EACH WORK DAY.
INSPECTION REQUIREMENTS, AS DESCRIBED IN NC DEMLR'S
CONSTRUCTION GENERAL PERMIT NUMBER NCG01000, WILL
BE FOLLOWED.
27.2. SITE, SEASONAL OR CLIMATE CONDITIONS MAY REQUIRE
INSTALLATION OF ADDITIONAL EROSION AND SEDIMENT
CONTROL MEASURES.
21. ONCE THE WORK AREA IS STABILIZED, ALL NON -BIODEGRADABLE
EROSION CONTROL MEASURES WILL BE REMOVED AND PROPERLY
DISPOSED OF BY THE CONTRACTOR.
QUANTITIES AND MATERIALS SPECIFICATIONS
22. THE CONTRACTOR SHALL FURNISH ALL MATERIALS AND
EQUIPMENT NECESSARY TO COMPLETE THE PROPOSED WORK
UNLESS OTHER PROVISIONS HAVE BEEN AGREED UPON PRIOR TO
CONSTRUCTION. THE CONTRACTOR SHALL DELIVER ALL MATERIALS
TO THE DESIGNATED ACCESS POINTS AND STAGING AREAS.
MATERIAL QUANTITIES, DIMENSIONS AND SIZES SHALL CONFORM
TO THE DRAWINGS, NOTES AND SPECIFICATIONS PROVIDED IN THE
CONSTRUCTION DOCUMENTS OR ON THE WORK QUANTITIES AND
MATERIALS LIST. THE ENGINEER MAY INSPECT AND APPROVE ALL
MATERIALS PRIOR TO CONSTRUCTION. IF MATERIALS DO NOT MEET
THE MINIMUM REQUIREMENTS SPECIFIED IN THE CONSTRUCTION
DOCUMENTS, THE ENGINEER SHALL REJECT THE MATERIALS.
23. THE EROSION CONTROL MEASURES SHOWN IN THE DRAWINGS ARE
TO BE INSTALLED AS NEEDED TO KEEP ALL SEDIMENT ON SITE AND
OUT OF STREAMS AND WETLANDS. ADDITIONAL EROSION
CONTROL MEASURES (ABOVE THOSE SHOWN ON THE DRAWINGS
AND ON THE QUANTITIES AND MATERIALS LIST) MAY BE REQUIRED
IN ORDER TO KEEP ALL SEDIMENT ON SITE AND OUT OF STREAMS
AND WETLANDS.
24. THE USE OF ANY BRAND NAMES/MANUFACTURERS OR MODELS IS
INTENDED SOLELY TO DENOTE THE QUALITY STANDARD OF THE
DESIRED PRODUCT. ANY USE OF BRAND NAMES IS NOT INTENDED
TO RESTRICT BIDDERS TO A SPECIFIC BRAND, MAKE,
MANUFACTURER, OR NAME. THE BRAND NAMES /
MANUFACTURERS OF MODELS ARE INTENDED TO CONVEY THE
GENERAL STYLE, TYPE, CHARACTER, AND QUALITY OF PRODUCT.
EQUIVALENT PRODUCTS WILL BE ACCEPTABLE IF THE PROJECT
OWNER OR ENGINEER HAS GIVEN APPROVAL OF THE SPECIFIC
PRODUCT IN WRITING.
STANDARD LINES AND SYMBOLS
EXISTING SITE FEATURES
- - 2450 - - EXISTING MAJOR CONTOUR
EXISTING MINOR CONTOUR
STREAM CENTERLINE
STREAM TOP OF BANK
- - - TOP OF EMBANKMENT SLOPE
TB 25' TROUT BUFFER
EXISTING GRAVEL ROAD
EXISTING WETLAND
N. FORK RESERVOIR
EXISTING SIGNIFICANT TREE
• TEMPORARY BENCHMARK (TBM)
DREDGING PLAN FEATURES
--
- - -
LOD
LIMITS OF DISTURBANCE (LOD)
2450 DESIGN MAJOR CONTOUR
DESIGN MINOR CONTOUR
WAT EROSION CONTROL WATTLES
SF
CF
- -
SILT FENCE
CONSTRUCTION SAFETY FENCE
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HENDERSON COUNTY - NORTH CAROLINA
DREDGING PLAN NOTES AND SPECIFICATIONS
FINAL
DRAWING
REVISIONS: 1
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
1" = 40'
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
0.2

0
40
80
Feet
SCALE: 1" = 40'
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WSE ELV. = 2,449.2'
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INV. ELV. = 2,453.9'
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INV. ELV. = 2,433.8'
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15" DIP
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WTP INTAKE
INV. ELV. = 2,439.0'
(APPROX).
N. FORK MILLS RIVER
TB
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HENDERSON COUNTY - NORTH CAROLINA
EXISTING SITE CONDITIONS - N. FORK RESERVOIR
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FINAL
DRAWING
REVISIONS:
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
1" = 40'
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
2.1

0
40
80
Feet
SCALE: 1" = 40'
PHASE 1 DREDGING OPERATIONS SEQUENCE
1. OBTAIN EROSION AND SEDIMENTATION CONTROL PLAN APPROVAL
AND ALL OTHER APPLICABLE PERMITS.
2. NOTIFY INSPECTOR FROM DEMLR ASHEVILLE REGIONAL OFFICE
PRIOR TO DISTURBANCE.
3. POST CERTIFICATE OF APPROVAL FOR LAND DISTURBANCE AT SITE.
4. INSTALL RAIN GAUGE AND PREPARE SELF INSPECTION AND
REPORTING FORMS AS DESCRIBED ABOVE.
5. FLAG THE WORK LIMITS AND STAKE OUT THE EXTENTS AND
ELEVATIONS OF THE PROJECT.
6. LOCATE ALL UNDERGROUND UTILITIES WITHIN THE WORKSITE.
7. HOLD PRE -CONSTRUCTION MEETING PRIOR TO STARTING
CONSTRUCTION.
8. IDENTIFY AND ESTABLISH THE STAGING AREA AND CONSTRUCTION
ACCESS ROUTES.
9. INSTALL SILT FENCE AND EROSION CONTROL WATTLES PER THE
ATTACHED PLAN SHEETS AND DETAILS.
10. INSPECT EROSION AND SEDIMENTATION CONTROL PRACTICES
DAILY AND AFTER SIGNIFICANT RAINFALL EVENTS. MAKE NEEDED
REPAIRS IMMEDIATELY.
11. ANY AREA DISTURBED WITHIN 25 FEET FROM THE TOP OF THE
STREAM BANK SHALL BE PROVIDED WITH TEMPORARY GROUND
COVER SPECIFIED IN THE VEGETATION PLAN WITHIN 10 CALENDAR
DAYS, UNLESS SUPERSEDED BY THE CONDITIONS OF GENERAL
STORMWATER PERMIT NCG 010000.
12. DEWATERING N. FORK RESERVOIR
12.1. ESTABLISH A DEWATERING SYSTEM (PUMP OR SIPHON) WITH
SUFFICIENT CAPACITY TO DEWATER THE RESERVOIR WITHIN A
REASONABLE AMOUNT OF TIME. INSPECT THE EXISTING
CHANNEL THAT IS RECEIVING DISCHARGE FROM THE
�I\
2460 -
/
25' TROUT BUFFER
EDGE OF RESERVOIR
WSE ELV. = 2,449.2'
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DEWATERING SYSTEM DAILY. IF SCOUR OR EROSION IS
OBSERVED WITHIN THE EXISTING CHANNEL, DECREASE THE
PUMP DISCHARGE RATE AND NOTIFY THE ENGINEER.
12.2. LOWER THE WATER SURFACE TO 2,439.0' OR LOWER AS
DIRECTED BY THE ENGINEER ONSITE TO ALLOW THE SEDIMENT
TO DEWATER.
12.3. ANY TURBID WATER GENERATED DURING DEWATERING
OPERATIONS CAN BE DISCHARGED INTO THE WATER INTAKE
FOR TREATMENT AT THE CITY OF HENDERSONVILLE WATER
TREATMENT PLANT.
12.4. THE N. FORK MILLS RIVER SHALL BE VISUALLY MONITORED FOR
TURBIDITY AND SEDIMENTATION THROUGHOUT THE
DURATION OF THE PROJECT. THE TURBIDITY STANDARD OF 10
NTUS (NEPHELOMETRIC TURBIDITY UNITS) SHALL NOT BE
EXCEEDED IN THE NORTH FORK MILLS RIVER AS DESCRIBED IN
TITLE 15A NCAC 02B .0200.
4
4
WATERFALL
INV. ELV. = 2,453.9'
WSE ELV. @ BASE = 2,449.4'
•
1-
45p — \
LIMITS OF DISTURBANCE (LOD) = 1.45 AC
EROSION CONTROL WATTLES
SEE DETAIL SHEET 3.1
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LOD
RESERVOIR DEWATERING SYSTEM
SEE DETAIL SHEET 3.2
_ OF STAGING AREA
SEE DETAIL SHEET 3.1
N. FORK - — MILLS RIVER
-- 2440 — — —"
TB-
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TB
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HENDERSON COUNTY - NORTH CAROLINA
PHASE 1 DREDGING OPERATIONS PLAN - N. FORK RESERVOIR
AL
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FINAL
DRAWING
REVISIONS:
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
1" = 40'
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
2.1

0
40
�--/�
25' TROUT BUFFER
EDGE OF RESERVOIR
WSE ELV. = 2,449.2'
PHASE 2 DREDGING AREA
TEMPORARY OPEN WATER IMPACT
0.338 AC
W3
PERMANENT IMPACT
0.036 AC
BIG CREEK TEMPORARY PUMP
AROUND SYSTEM
SEE DETAIL SHEET 3.2
80
Feet
SCALE: 1" = 40'
PHASE 2 DREDGING OPERATIONS SEQUENCE
13. BIG CREEK DREDGE SEQUENCE
13.1. PHASE 2 OF THE DREDGING WORK WILL EXCAVATE AND
REMOVE SEDIMENT FROM THE BIG CREEK ARM OF THE
RESERVOIR.
13.2. INSTALL A CONSTRUCTION ENTRANCE AND ESTABLISH A
TEMPORARY ACCESS ROUTE TO THE WORK AREA. TIMBER
MATS OR RIPRAP MAY BE USED TO STABILIZE AND SUPPORT
THE ACCESS ROUTE.
13.3. INSTALL A ROCK SILT CHECK AROUND THE INTAKE STRUCTURE
AS SHOWN IN THE DRAWINGS AND DETAILS.
13.4. ESTABLISH TEMPORARY PUMP AROUND SYSTEMS ON BIG
CREEK AND FLETCHER CREEK AS SHOWN IN THE DRAWINGS
AND DETAILS. INSPECT THE EXISTING CHANNEL THAT IS
RECEIVING DISCHARGE FROM THE PUMPS DAILY. IF SCOUR OR
EROSION IS OBSERVED WITHIN THE EXISTING CHANNEL,
DECREASE THE PUMP DISCHARGE RATE AND NOTIFY THE
ENGINEER.
13.5. IF STORM EVENTS FILL THE RESERVOIR, RESTART THE
DEWATERING SYSTEM AS SHOWN ON SHEET 2.2.
13.6. A MINIMUM OF EIGHT (8) CUBIC FEET PER SECOND (CFS) OF
STREAMFLOW, OR INFLOW, WHICHEVER IS LESS, MUST BE
MAINTAINED IN THE N. FORK MILLS RIVER AT ALL TIMES. [15A
NCAC 02B .0211 (2) AND 15A NCACO2H.0506(B)(3)]
13.7. ANY TURBID WATER GENERATED DURING DREDGING
OPERATIONS SHALL BE DISCHARGED INTO THE WATER INTAKE
FOR TREATMENT AT THE CITY OF HENDERSONVILLE WATER
TREATMENT PLANT.
13.8. THE N. FORK MILLS RIVER SHALL BE VISUALLY MONITORED FOR
TURBIDITY AND SEDIMENTATION THROUGHOUT THE
DURATION OF THE PROJECT. THE TURBIDITY STANDARD OF 10
242.
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FLETCHER CREEK TEMPORARY
PUMP AROUND SYSTEM
SEE DETAIL SHEET 3.2
WATERFALL
INV. ELV. = 2,453.9'
WSE ELV. @ BASE = 2,449.4'
REMOVE EXISTING WOODEN FENCE
AND 15" POPLAR TREE FOR ACCESS
1
•;
1-
0
CONSTRUCTION ENTRANCE
SEE DETAIL SHEET 3.1
LIMITS OF DISTURBANCE (LOD) = 1.45 AC
— 2470 -
_ -- — r
LOD LOD LQD� SF
F SF r
ROCK SILT CHECK AT INTAKE 1-\
SEE DETAIL SHEET 3.1
--2440---"—
- - N.
FORK MILLS RI
VER
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\,0
NTUS (NEPHELOMETRIC TURBIDITY UNITS) SHALL NOT BE
EXCEEDED IN THE NORTH FORK MILLS RIVER AS DESCRIBED IN
TITLE 15A NCAC 02B .0200.
13.9. EXCAVATE RESERVOIR SEDIMENT AND HAUL IT TO THE
DESIGNATED FILL AREA AT THE HENDERSONVILLE WATER
TREATMENT PLANT (SEE SHEET 2.4).
13.10. AFTER THE CITY AND THE ENGINEER HAVE APPROVED THE
COMPLETED PHASE 2 DREDGING OPERATIONS ON BIG CREEK,
THE ACCESS PATH SHALL BE REMOVED.
PHASE 2 ACCESS ROUTE
25' TROUT BUFFER
TB
TB
TB
LOD
LOD
SF LOD
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HENDERSON COUNTY - NORTH CAROLINA
PHASE 2 DREDGING OPERATIONS PLAN - N. FORK RESERVOIR
FINAL
DRAWING
REVISIONS:
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
1" = 40'
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
2.2

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0
40
BIG CREEK TEMPORARY PUMP
AROUND SYSTEM
SEE DETAIL SHEET 3.2
80
Feet
SCALE: 1" = 40'
PHASE 3 DREDGING OPERATIONS SEQUENCE
14. FLETCHER CREEK DREDGE SEQUENCE
14.1. PHASE 3 OF THE DREDGING WORK WILL EXCAVATE AND
REMOVE SEDIMENT FROM THE FLETCHER CREEK ARM OF THE
RESERVOIR.
14.2. MAINTAIN A CONSTRUCTION ENTRANCE AND ESTABLISH A
TEMPORARY ACCESS ROUTE TO THE WORK AREA. TIMBER
MATS OR RIPRAP MAY BE USED TO STABILIZE AND SUPPORT
THE ACCESS ROUTE.
14.3. MAINTAIN A ROCK SILT CHECK AROUND THE INTAKE
STRUCTURE AS SHOWN IN THE DRAWINGS AND DETAILS.
14.4. MAINTAIN TEMPORARY PUMP AROUND SYSTEMS ON BIG
CREEK AND FLETCHER CREEK AS SHOWN IN THE DRAWINGS
AND DETAILS. INSPECT THE EXISTING CHANNEL THAT IS
RECEIVING DISCHARGE FROM THE PUMPS DAILY. IF SCOUR OR
EROSION IS OBSERVED WITHIN THE EXISTING CHANNEL,
DECREASE THE PUMP DISCHARGE RATE AND NOTIFY THE
ENGINEER.
14.5. IF STORM EVENTS FILL THE RESERVOIR, RESTART THE
DEWATERING SYSTEM AS SHOWN ON SHEET 2.2.
14.6. A MINIMUM OF EIGHT (8) CUBIC FEET PER SECOND (CFS) OF
STREAMFLOW, OR INFLOW, WHICHEVER IS LESS, MUST BE
MAINTAINED IN THE N. FORK MILLS RIVER AT ALL TIMES. [15A
NCAC 02B .0211 (2) AND 15A NCACO2H.0506(B)(3)]
14.7. ANY TURBID WATER GENERATED DURING DREDGING
OPERATIONS SHALL BE DISCHARGED INTO THE WATER INTAKE
FOR TREATMENT AT THE CITY OF HENDERSONVILLE WATER
TREATMENT PLANT.
14.8. THE N. FORK MILLS RIVER SHALL BE VISUALLY MONITORED FOR
TURBIDITY AND SEDIMENTATION THROUGHOUT THE
DURATION OF THE PROJECT. THE TURBIDITY STANDARD OF 10
N
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-\
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W2
PERMANENT WETLAND IMPACT
0.031 AC
PHASE 3 DREDGING AREA
TEMPORARY OPEN WATER IMPACT 0.28 AC
� �� /
2460" / 00
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l0
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EDGE OF RESERVOIR
WSE ELV. = 2,449.2'
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FLETCHER CREEK TEMPORARY
PUMP AROUND SYSTEM
SEE DETAIL SHEET 3.2
WATERFALL
INV. ELV. = 2,453.9'
WSE ELV. @ BASE = 2,449.4'
45p
/ -55,--
//1"°�o /--
/� / / ,/ // /
N- 0�=/7'�� / LIMITS OF DISTURBANCE (LOD) = 1.45 AC
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NTUS (NEPHELOMETRIC TURBIDITY UNITS) SHALL NOT BE
EXCEEDED IN THE NORTH FORK MILLS RIVER AS DESCRIBED IN
TITLE 15A NCAC 02B .0200.
14.9. EXCAVATE RESERVOIR SEDIMENT AND HAUL IT TO THE
DESIGNATED FILL AREA AT THE HENDERSONVILLE WATER
TREATMENT PLANT (SEE SHEET 2.4).
14.10. AFTER THE CITY AND THE ENGINEER HAVE APPROVED THE
COMPLETED PHASE 3 DREDGING OPERATIONS ON FLETCHER
CREEK, REMOVE THE ACCESS PATH, ROCK SILT CHECK AND
TEMPORARY PUMP AROUND SYSTEMS.
14.11. STABILIZE THE WORK AREA AS SHOWN ON SHEET 4.1.
14.12. AFTER FINAL STABILIZATION OF THE N. FORK RESERVOIR SITE
SITE HAS BEEN MET, REMOVE ALL OTHER
NON -BIODEGRADABLE E&SC MEASURES.
W1
PERMANENT WETLAND IMPACT
0.007 AC
2460
SOD
SF
CONSTRUCTION ENTRANCE
SEE DETAIL SHEET 3.1
LIMITS OF DISTURBANCE (LOD) = 1.45 AC
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ROCK SILT CHECK AT IN
SEE DETAIL SHEET 3.1
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LOD
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GRAVEL ROAD
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PHASE 3 DREDGING OPERATIONS PLAN - N. FORK RESERVOIR
FINAL
DRAWING
REVISIONS:
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
1" = 40'
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
2.3

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LIMITS OF DISTURBANCE (LOD) = 1.57 AC
SILT FENCE AROUND
PERIMETER OF WORK AREA
SEE DETAIL SHEET 3.1
HENDERSONVILLE CITY OF
PIN: 9631942484
12.35 AC
CONSTRUCTION ENTRANCE
SEE DETAIL SHEET 3.1
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LOUKAS, VIVIAN
PIN: 9631944652
0.41 AC
80
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SCALE: 1" = 40'
DISPOSAL AREA OPERATIONS SEQUENCE
15. ALL EXCAVATED SEDIMENT SHALL BE DISPOSED OF IN THE
DESIGNATED FILL AREA AT THE CITY OF HENDERSONVILLE WATER
TREATMENT PLANT.
15.1. ALL TRUCK TRAFFIC SHALL ENTER THE SITE THROUGH THE
SERVICE GATE OFF HAYWOOD ROAD / SR 191.
15.2. A CONSTRUCTION ENTRANCE SHALL BE INSTALLED AT THE
ENTRANCE TO THE SERVICE YARD.
15.3. SILT FENCE SHALL BE INSTALLED ALONG THE LIMITS OF
DISTURBANCE.
15.4. PLACE ALL DREDGED MATERIAL IN THE DISPOSAL AREA TO THE
LINES, GRADES AND ELEVATIONS SHOWN IN THE DRAWINGS.
15.5. AFTER THE CITY AND ENGINEER HAVE APPROVED OF THE
DISPOSAL WORK, STABILIZE THE WORK AREA AS SHOWN ON
SHEET 4.2.
15.6. AFTER FINAL STABILIZATION OF THE DISPOSAL SITE HAS BEEN
MET, REMOVE ALL NON -BIODEGRADABLE E&SC MEASURES
AND NOTIFY THE NOTIFY INSPECTOR FROM DEMLR ASHEVILLE
REGIONAL OFFICE.
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HARVEY, DENISE D
PIN: 9631944772
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PIN: 9631944881
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PERIMETER OF WORK AREA
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PIN: 9631944991
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FINAL
DRAWING
REVISIONS: 1
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
1" = 40'
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
2.4

EXISTING
ROADWAY
A
4
9
in
9
50' MINIMUM
2"-3" STONE TO BE USED
(NCDOT CLASS A OR RAILROAD
BALLAST)
■vim■ •:
DETAILED PLAN
NOT TO SCALE
4
A'
f
12' MINIMUM
50' MINIMUM
STANDARD CONSTRUCTION ENTRANCE NOTES AND SPECIFICATIONS
1. CLEAR THE ENTRANCE AND EXIT AREA OF ALL VEGETATION ROOTS, AND OTHER OBJECTIOABLE MATERIAL AND
PROPERLY GRADE THE AREA.
2. PLACE THE 2"-3" STONE TO THE SPECIFIC GRADE AND DIMENSIONS SHOWN ON THE PLAND AND SMOOTH IT.
3. USE GEOTEXTILE FABRICS TO IMPROVE STABILITY OF THE FOUNDATION IN LOCATIONS SUBJECT TO SEEPAGE OR A HIGH
WATER TABLE.
4. INSTALL SILT FENCE OR TREE PROTECTION FENCE UP TO ENSURE CONSTRUCTION ENTRANCE IS USED.
5. IF CONSTRUCTION ON THE SITES ARE SUCH THAT THE MUD IS NOT REMOVED BY THE VEHICLE TRAVELING OVER THE
STONE, THEN THE LENGTH OF THE CONSTRUCTION ENTRANCE SHALL BE INCREASED.
6. SEE SECTION 6.06.1 OF NC DEMLR'S EROSION AND SEDIMENT CONTROL DESIGN MANUAL (2013) FOR ADDITIONAL
INFORMATION, NOTES AND SPECIFICATIONS.
NEW CONSTRUCTION
EXISTING ROADWAY
iII-�ito■o
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8' MAX.
I_"
6" MIN.
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o■o�■o`��v o
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FILTER FABRIC UNDER STONE
DETAILED CROSS-SECTION A - A'
NOT TO SCALE
STANDARD CONSTRUCTION ENTRANCE DETAIL
WARNING
SIGN
CONSTRUCTION AREA
DO NOT ENTER
Iill IIII=NRANGE,UVRESISTANT
HIGH -TENSILE STRENGTH
IIII POLY BARRICADE FABRIC (TYPICAL) III
'IIII_
DETAILED FRONT
NOT TO SCALE
- ORANGE, UV RESISTANT
HIGH - TENSILE STRENGTH
POLY BARRICADE FABRIC (TYPICAL)
- WARNING SIGN
DETAILED SIDE
NOT TO SCALE
4" 3" 4" 37 4"
40"
PLASTIC OR
WIRE TIES
CONSTRUCTION AREA
DO NOT ENTER
WARNING SIGN DETAIL
NOT TO SCALE
18"
III -Ill ii-I Ili -III il-1 Ili;
IIIII1I I. 111 1
CONSTRUCTION SAFETY FENCE NOTES AND SPECIFICATIONS
1. INSTALL THE CONSTRUCTION SAFETY FENCE WITH ORANGE, UV RESISTANT HIGH - TENSILE STRENGTH POLY BARRICADE
FABRIC.
2. WIRE OR PLASTIC ZIP TIES SHOULD HAVE A MINIMUM 50 POUND TENSILE STRENGTH.
3. SPACE POSTS A MAXIMUM OF 8 FT APART. SUPPORT POSTS SHOULD BE DRIVEN SECURELY INTO THE GROUND A
MINIMUM OF 2 FT.
4. WARNING SIGNS TO BE MADE OF DURABLE, WEATHERPROOF MATERIAL. LETTERS TO BE 3" HIGH MINIMUM, CLEARLY
LEGIBLE AND SPACED AS DETAILED. PLACE A SIGN AT EACH END OF LINEAR SAFETY FENCING AND 50' ON CENTER
THEREAFTER. FOR CONSTRUCTION AREAS LESS THAN 200' IN PERIMETER, PROVIDE NO LESS THAN ONE SIGN PER
PROTECTION AREA. ATTACH SIGNS SECURELY TO FENCE POSTS AND FABRIC.
5. MAINTAIN SAFETY FENCE THROUGHOUT DURATION OF PROJECT.
MIN. 10 GA.
LINE WIRES
8' MAX.
VARIABLE AS DIRECTED BY THE ENGINEER
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WASHED #57 FILTER STONE
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ROCK SILT CHECK FOR
INLET PROTECTION
ELV. = 2,439.0'
WASHED #57 FILTER STONE
NCDOT CLASS B RIPRAP
1/2
ROCK SILT CHECK FOR
INTAKE PROTECTION
DETAILED PLAN
NOT TO SCALE
14.0'
SETTLING
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1.0' MIN���
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WIRES
GRADE
TEMPORARY SILT FENCE NOTES AND SPECIFICATIONS
1. CONSTRUCT THE SILT FENCE WITH STANDARD STRENGTH OR EXTRA STRENGTH SYNTHETIC FILTER FABRICS.
2. SUPPORT THE STANDARD STRENGTH FILTER FABRIC BY WIRE MESH FASTENED SECURELY TO THE UPSLOPE SIDE OF THE
POSTS. EXTEND THE WIRE MESH SUPPORT TO THE BOTTOM THE TRENCH. FASTEN THE WIRE REINFORCEMENT, THEN
FABRIC ON THE UPSLOPE SIDE OF THE FENCE POST. WIRE OR PLASTIC ZIP TIES SHOULD HAVE A MINIMUM 50 POUND
TENSILE STRENGTH.
3. WHEN A WIRE MESH SUPPORT FENCE IS USED, SPACE POSTS A MAXIMUM OF 8 FT APART. SUPPORT POSTS SHOULD BE
DRIVEN SECURELY INTO THE GROUND A MINIMUM OF 2 FT.
4. EXTRA STRENGTH FILTER FABRIC WITH 6 FT POST SPACINGS DOES NOT REQUIRE WIRE MESH SUPPORT FENCE.
5. EXCAVATE A TRENCH APPROXIMATELY 4 INCHES WIDE AND 8 INCHES DEEP ALONG THE PROPOSE LINE OF POSTS AND
UPSLOPE OF THE BARRIER.
6. PLACE 12 INCHES OF FABRIC ALONG THE BOTTOM AND SIDE OF THE TRENCH.
7. BACKFILL THE TRENCH WITH SOIL PLACED OVER THE FILTER FABRIC AND COMPACT. THOROUGH COMPACTION OF THE
BACKFILL IS CRITICAL TO SILT FENCE PERFORMANCE.
8. DO NOT ATTACH FILTER FABRIC TO EXISTING TREES.
9. CONSTRUCTION SITE RUNOFF SHALL NOT RUN PARALLEL WITH THE FENCE.
10. END OF SILT FENCE NEEDS TO BE TURNED UPHILL.
11. SEE SECTION 6.62.1 OF NC DEMLR'S EROSION AND SEDIMENT CONTROL DESIGN MANUAL (2013) FOR ADDITIONAL
INFORMATION, NOTES AND SPECIFICATIONS.
TEMPORARY SILT FENCE DETAIL
EXISTING
EMBANKMENT
SETTLING BASIN
7 EXISTING
EMBANKMENT
DETAILED SECTION A - A'
NOT TO SCALE
ROCK SILT CHECK SPECIFICATIONS
1. ALL ROCK SILT CHECK INSTALLATION WORK SHALL TAKE PLACE DURING DRY WORKING CONDITIONS. THE CONTRACTOR
SHALL MINIMIZE THE EXPORT OF SEDIMENT TO ADJACENT SURFACE WATERS TO THE MAXIMUM EXTENT PRACTICABLE.
2. INSTALL THE ROCK SILT CHECK TO PROTECT THE WTP INTAKE.
3. NON -WOVEN 8 OZ FILTER FABRIC SHALL BE USED BENEATH ALL RIPRAP INSTALLATIONS.
4. EROSION CONTROL BLANKET SHALL BE USED ON ALL EXCAVATED AND BACKFILLED EMBANKMENT AREAS.
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DREDGING OPERATIONS PLAN DETAILS
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FINAL
DRAWING
REVISIONS:
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
NTS
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
CONSTRUCTION SAFETY FENCE DETAIL
ROCK SILT CHECK DETAIL
3.1

TOP OF DAM
INV. ELV. = 2,449.2'
WTP INTAKE
INV. ELV. = 2,439.0'
(APPROX.)
1
•
•
•
•
•
•
•
1
•
•
•
•
•
•
•
DEWATERING SYSTEM
(PUMP OR SIPHON)/
15" DIP WITH GATE VALVE
INV. ELV. = 2,432.5')
N. FORK MILLS RIVER
•
•
•
•
1
1
•
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44
9 4
4 4
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BOTTOM DRAIN BURIED
TO HENDERSONVILLE
WTP
N. FORK RESERVOIR
WATER SURFACE
TOP OF SEDIMENT NEAR INTAKE
ELV. = 2,447.0'
IDREDGE RESERVOIR TO ELV. = 2,432.0'
CONTRACTOR SHALL NOT DREDGE ANY IN -SITU
MATERIALS BELOW ACCUMULATED SEDIMENT
DEWATERING SYSTEM NOTES
1. ESTABLISH A DEWATERING SYSTEM (PUMP OR SIPHON) WITH SUFFICIENT CAPACITY TO DEWATER THE RESERVOIR
WITHIN A REASONABLE AMOUNT OF TIME. INSPECT THE EXISTING CHANNEL THAT IS RECEIVING DISCHARGE FROM THE
DEWATERING SYSTEM DAILY. IF SCOUR OR EROSION IS OBSERVED WITHIN THE EXISTING CHANNEL, DECREASE THE PUMP
DISCHARGE RATE AND NOTIFY THE ENGINEER.
2. LOWER THE WATER SURFACE TO 2,439.0' OR LOWER AS DIRECTED BY THE ENGINEER ONSITE TO ALLOW THE SEDIMENT
TO DEWATER.
3. ANY TURBID WATER GENERATED DURING DEWATERING AND DREDGING OPERATIONS CAN BE DISCHARGED INTO THE
WATER INTAKE FOR TREATMENT AT THE CITY OF HENDERSONVILLE WATER TREATMENT PLANT (WTP).
4. THE N. FORK MILLS RIVER SHALL BE VISUALLY MONITORED FOR TURBIDITY AND SEDIMENTATION THROUGHOUT THE
DURATION OF THE PROJECT. THE TURBIDITY STANDARD OF 10 NTUS (NEPHELOMETRIC TURBIDITY UNITS) SHALL NOT BE
EXCEEDED IN THE NORTH FORK MILLS RIVER AS DESCRIBED IN TITLE 15A NCAC 02B .0200.
5. IF STORM EVENTS FILL THE RESERVOIR, RESTART THE DEWATERING SYSTEM AS NEEDED TO DRAW THE WATER LEVEL
DOWN.
DEWATERING SYSTEM DETAIL
DISCHARGE BELOW DAM INTO STABLE
REACH OF N. FORK RESERVOIR
FLOW
DAM
O
J
r
O
O. . 4'
0
J 4 0
DISCHARGE HOSE
N. FORK
RESERVOIR
RIPRAP OR
SANDBAG BERM
DREDGING AREA
DETAILED PLAN
NOT TO SCALE
TEMPORARY PUMP AROUND SYSTEM NOTES
1. THE CONTRACTOR SHALL SIZE THE PUMP AROUND SYSTEM SUFFICIENTLY FOR A RANGE OF POSSIBLE BASEFLOW
DISCHARGES AND THE SYSTEM SHALL RUN CONTINUOUSLY WHILE WORKING IN THE STREAM.
2. ESTABLISH TEMPORARY PUMP AROUND SYSTEMS ON BIG CREEK AND FLETCHER CREEK. INSPECT THE EXISTING
CHANNEL THAT IS RECEIVING DISCHARGE FROM THE PUMPS DAILY. IF SCOUR OR EROSION IS OBSERVED WITHIN THE
EXISTING CHANNEL, DECREASE THE PUMP DISCHARGE RATE AND NOTIFY THE ENGINEER.
3. ANY TURBID WATER GENERATED DURING DEWATERING AND DREDGING OPERATIONS CAN BE DISCHARGED INTO THE
WATER INTAKE FOR TREATMENT AT THE CITY OF HENDERSONVILLE WATER TREATMENT PLANT (WTP).
4. IF STORM EVENTS FILL THE RESERVOIR, RESTART THE DEWATERING SYSTEM AS SHOWN ON SHEET 2.2.
5. A MINIMUM OF EIGHT (8) CUBIC FEET PER SECOND (CFS) OF STREAMFLOW, OR INFLOW, WHICHEVER IS LESS, MUST BE
MAINTAINED IN THE N. FORK MILLS RIVER AT ALL TIMES. [15A NCAC 02B .0211 (2) AND 15A NCACO2H.0506(B)(3)]
TEMPORARY PUMP AROUND SYSTEM DETAIL
STREAM DIVERSION PUMP
INTAKE HOSE
STREANIBANK
FLOW
-4011111F-
SUMP-HOLE FOR INTAKE POOL
(12" TO 18" DEEP, 10-FT DIAMETER)
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NORTH FORK M
HENDERSON COUNTY - NORTH CAROLINA
DREDGING OPERATIONS PLAN DETAILS
FINAL
DRAWING
REVISIONS:
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
NTS
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
3.2

GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCGO1 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 NCGO1 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.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization Timeframes
Stabilize within this
Site Area Description
many calendar
Timeframe variations
days after ceasing
land disturbance
(a) Perimeter dikes,
swales, ditches, and
perimeter slopes
7
None
(b) High Quality Water
7
None
(HQW) Zones
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
(d) Slopes 3:1 to 4:1
14
-7 days for perimeter dikes, swales,
ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
(e) Areas with slopes
-7 days for perimeter dikes, swales,
ditches, perimeter slopes and HQW Zones
flatter than 4:1
14
-10 days for Falls Lake Watershed unless
there is zero slope
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.
GROUND STABILIZATION SPECIFICATION
will not dislodge the soil. Use one of the
Stabilize the ground sufficiently so that rain
techniques in the table below:
Temporary Stabilization
Permanent Stabilization
• Temporary grass seed covered with straw or
other mulches and tackifiers
• Hydroseeding
• Rolled erosion control products with or
without temporary grass seed
• Appropriately applied straw or other mulch
• Plastic sheeting
• Permanent grass seed covered with straw or
other mulches and tackifiers
• Geotextile fabrics such as permanent soil
reinforcement matting
• Hydroseeding
• Shrubs or other permanent plantings covered
with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control products with grass seed
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.
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.
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.
SORT FENCE ."'
hmN�oL��`E&s��o`MIN,
PLAN
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
i. Z CALSECTION LOCATION DETERMINED IN FIELD
„,a TNEAPVROPESCAPACI "oYoa=ooepe«EAa
BELOW GRADE WASHOUT STRUCTURE
NCI SLAM
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SECTION B-B
ngLIPS LOCATION DETERMINED IN FIELD
AND/OR SOLID REACHES 7 0FTEE
STRUCTURES CAPACITY TO PROVIDE ADEQUATE
PLAN
ABOVE GRADE WASHOUT STRUCTURE
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.
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.
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.
SELF -INSPECTION,
SECTION A: SELF -INSPECTION
PART III
RECORDKEEPING AND REPORTING
normal business hours in accordance with the table
site conditions would cause the safety of the inspection
may be delayed until the next business day on
In addition, when a storm event of equal to or
of normal business hours, the self -inspection shall be
of the next business day. Any time when inspections
Inspection Record.
Self -inspections are required during
below. When adverse weather or
personnel to be in jeopardy, the inspection
which it is safe to perform the inspection.
greater than 1.0 inch occurs outside
performed upon the commencement
were delayed shall be noted in the
Inspect
(1) Rain gauge
maintained in
good working
order
Frequency
(during normal
business hours)
Daily
Inspection records must include:
Daily rainfall amounts.
If no daily rain gauge observations are made during weekend or
holiday periods, and no individual -day rainfall information is
available, record the cumulative rain measurement for those un-
attended days (and this will determine if a site inspection is
needed). Days on which no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Division.
(2) E&SC
Measures
At least once per
7 calendar days
and within 24
hours of a rain
event > 1.0 inch in
24 hours
1. Identification of the measures inspected,
2. Date and time of the inspection,
3. Name of the person performing the inspection,
4. Indication of whether the measures were operating
properly,
5. Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) Stormwater
discharge
outfalls (SDOs)
At least once per
7 calendar days
and within 24
hours of a rain
event > 1.0 inch in
24 hours
1. Identification of the discharge outfalls inspected,
2. Date and time of the inspection,
3. Name of the person performing the inspection,
4. Evidence of indicators of stormwater pollution such as oil
sheen, floating or suspended solids or discoloration,
5. Indication of visible sediment leaving the site,
6. Description, evidence, and date of corrective actions taken.
(4) Perimeter of
site
At least once per
7 calendar days
and within 24
hours of a rain
event > 1.0 inch in
24 hours
If visible sedimentation is found outside site limits, then a record
of the following shall be made:
1. Actions taken to clean up or stabilize the sediment that has left
the site limits,
2. Description, evidence and date of corrective actions taken and
P ,
3. An explanation as to the actions taken to control future
releases.
(5) Streams or
wetlands onsite
or offsite
(where
accessible)
At least once per
7 calendar days
and within 24
hours of a rain
event > 1.0 inch in
24 hours
If the stream or wetland has increased visible sedimentation or a
stream has visible increased turbidity from the construction
activity, then a record of the following shall be made:
1. Description, evidence and date of corrective actions taken, and
2. Records of the required reports to the appropriate Division
Regional Office per Part III, Section C, Item (2)(a) of this permit
of this permit.
(6) Ground
stabilization
measures
After each phase
of grading
1. The phase of grading (installation of perimeter E&SC
measures, clearing and grubbing, installation of storm
drainage facilities, completion of all land -disturbing
activity, construction or redevelopment, permanent
ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required
timeframe or an assurance that they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
SELF -INSPECTION, RECORDKEEPING
SECTION B: RECORDKEEPING
PART III
AND REPORTING
deviation shall be kept on the site. The
throughout the coverage under this permit.
plan shall be documented in the manner
1. E&SC Plan Documentation
The approved E&SC plan as well as any approved
approved E&SC plan must be kept up-to-date
The following items pertaining to the E&SC
described:
Item to Document
Documentation Requirements
(a) Each E&SC Measure has been installed
and does not significantly deviate from the
locations, dimensions and relative elevations
shown on the approved E&SC Plan.
Initial and date each E&SC Measure on a copy
of the approved E&SC Plan or complete, date
and sign an inspection report that lists each
E&SC Measure shown on the approved E&SC
Plan. This documentation is required upon the
initial installation of the E&SC Measures or if
the E&SC Measures are modified after initial
installation.
(b) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
Plan or complete, date and sign an inspection
report to indicate completion of the
construction phase.
(c) Ground cover is located and installed
in accordance with the approved E&SC
Plan.
Initial and date a copy of the approved E&SC
Plan or complete, date and sign an inspection
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
requirements for all E&SC Measures
have been performed.
Complete, date and sign an inspection report.
(e) Corrective actions have been taken
to E&SC Measures.
Initial and date a copy of the approved E&SC
Plan or complete, date and sign an inspection
report to indicate the completion of the
corrective action.
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].
Occurrence
Reporting Timeframes (After Discovery) and Other Requirements
(a) Visible sediment
deposition in a
stream or wetland
• Within 24 hours, an oral or electronic notification.
• Within 7calendar days, a report that contains a description of the
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis.
• If the stream is named on the NC 303(d) list as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
release of
hazardous
substances per Item
1(b)-(c) above
• Within 24 hours, an oral or electronic notification. The notification
shall include information about the date, time, nature, volume and
location of the spill or release.
(c) Anticipated
bypasses [40 CFR
122.41(m)(3)]
• A report at least ten days before the date of the bypass, if possible.
The report shall include an evaluation of the anticipated quality and
effect of the bypass.
(d) Unanticipated
bypasses [40 CFR
122.41(m)(3)]
• Within 24 hours, an oral or electronic notification.
• Within 7calendar days, a report that includes an evaluation of the
quality and effect of the bypass.
(e) Noncompliance
with the conditions
of this permit that
may endanger
health or the
environment[40
CFR 122.41(1)(7)]
• Within 24 hours, an oral or electronic notification.
• Within 7calendar days, a report that contains a description of the
noncompliance, and its causes; the period of noncompliance,
including exact dates and times, and if the noncompliance has not
been corrected, the anticipated time noncompliance is expected to
continue; and steps taken or planned to reduce, eliminate, and
prevent reoccurrence of the noncompliance. [40 CFR 122.41(1)(6).
• Division staff may waive the requirement for a written report on a
case -by -case basis.
NORTH FORK M
HENDERSON COUNTY - NORTH CAROLINA
NCG01 CONSTRUCTION GENERAL PERMIT
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FINAL
DRAWING
REVISIONS:
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
NTS
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
3.3

Velk
0
40
80
Feet
SCALE: 1" = 40'
STABILIZATION NOTES AND SPECIFICATIONS
1. ALL DISTURBED AREAS WITH LOD SHALL BE STABILIZED USING
TEMPORARY AND PERMANENT SEEDING AS DEFINED IN THE
SEEDING SCHEDULE AND THE APPROVED DREDGING OPERATIONS
PLAN.
2. SUPPLEMENTAL PLANTING ACTIVITIES MAY BE REQUIRED IF FINAL
STABILIZATION OF THE SITE IS NOT REACHED WITHIN NCDEMLR
SPECIFIED TIME PERIOD.
TEMPORARY SEEDING NOTES AND
SPECIFICATIONS
3. TEMPORARY SEEDING AND MULCHING SHALL BE APPLIED TO ALL
AREAS AND ACCESS ROUTES DISTURBED DURING CONSTRUCTION.
4. ALL SEED AND SEED VARIETIES MUST BE FREE OF STATE AND
FEDERALLY LISTED NOXIOUS WEED SEED AND INVASIVE SPECIES.
5. ALL DISTURBED AREAS WILL BE SEEDED WITH TEMPORARY SEED
AND MULCHED WITH WHEAT STRAW. SEEDING WILL BE
PERFORMED USING A BROADCAST SPREADER. OTHER METHODS
MAY BE USED BUT MUST BE APPROVED BY ENGINEER IN ADVANCE
OF INSTALLATION.
6. MAINTENANCE OF SEEDED AREAS SHALL CONSIST OF WATERING,
WEED AND PEST CONTROL, FERTILIZATION, EROSION REPAIR,
RESEEDING, AND INCIDENTAL OPERATIONS AS NECESSARY TO
ESTABLISH A HEALTHY, VIGOROUS, WEED FREE AND DISEASE FEE
UNIFORM STAND OF GRASS. ALL AREAS WHICH FAIL TO SHOW A
UNIFORM STAND OF GRASS FOR ANY REASON SHALL BE TREATED
REPEATEDLY UNTIL A UNIFORM STAND OF AT LEAST 90%
COVERAGE IS ATTAINED WITH NO BARE AREA GREATER THAN FIVE
SQUARE FEET.
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PERMANENT SEEDING NOTES AND
SPECIFICATIONS
7. PERMANENT SEEDING SHALL OCCUR IN CONJUNCTION WITH
TEMPORARY SEEDING WHERE APPLICABLE. IDEALLY, PERMANENT
SEEDING SHALL OCCUR DURING THE PLANTING SEASON FOR EACH
SEED TYPE. AREAS FERTILIZED FOR TEMPORARY SEEDING SHALL BE
SUFFICIENTLY FERTILIZED FOR PERMANENT SEEDING; ADDITIONAL
FERTILIZER IS NOT REQUIRED FOR PERMANENT SEEDING.
8. ALL SEED AND SEED VARIETIES MUST BE FREE OF STATE AND
FEDERALLY LISTED NOXIOUS WEED SEED AND INVASIVE SPECIES.
9. THE CONTRACTOR SHALL LOOSEN THE SOIL TO A MINIMUM DEPTH
OF 4-INCHES AND GRADE TO A SMOOTH, EVEN SURFACE WITH A
LOOSE, UNIFORMLY FINE TEXTURE. THE AREAS TO BE SEEDED ARE
THEN TO BE ROLLED AND RAKED TO REMOVE RIDGES AND FILL
DEPRESSIONS TO MEET FINISH GRADES. THE CONTRACTOR IS TO
LIMIT SUB GRADE AND FINISH GRADE PREPARATION TO AREAS
THAT WILL BE PLANTED IMMEDIATELY. PREPARED AREAS ARE TO BE
RESTORED IF ERODED OR OTHERWISE DISTURBED AFTER FINE
GRADING AND BEFORE PLANTING.
10. SEED SHALL BE SOWN WITH A SPREADER OR A SEEDING MACHINE.
SEED IS NOT TO BE BROADCAST OR DROPPED WHEN WIND
VELOCITY EXCEEDS 5 MPH. SEED SHALL BE EVENLY DISTRIBUTED BY
SOWING IN TWO DIRECTIONS AT RIGHT ANGLES TO EACH OTHER.
WET SEED OR SEED THAT IS MOLDY OR OTHERWISE DAMAGED IN
TRANSIT OR STORAGE IS NOT TO BE USED. AFTER BEGIN SOWN,
THE SEED SHALL BE RAKED INTO THE TOP 1/4 INCH OF THE
TOPSOIL, LIGHTLY ROLLED, AND WATERED WITH FINE SPRAY.
SEEDED AREAS ON STREAM BANKS SHALL BE PROTECTED WITH
COIR FIBER MATTING.
+ + + -
+ + + +
STABILIZE AREA DISTURBED FOR
DREDGING ACCESS (0.04 AC)
LOD LOD EQp-
2440 — — —"
4so ...
-
\ ` 1
TEMPORARY SEEDING SCHEDULE
DATE
TYPE
APP. RATE (LBS/AC)
JAN1-MAY 1
RYE GRAIN
120
GROUND AG. LIMESTONE
2,000
10-10-10 FERTILIZER
750
STRAW MULCH
4,000
MAY 1 - AUG 15
GERMAN MILLET
50
GROUND AG. LIMESTONE
2,000
10-10-10 FERTILIZER
750
STRAW MULCH
4,000
AUG 15 - DEC 30
RYE GRAIN
120
GROUND AG. LIMESTONE
2,000
10-10-10 FERTILIZER
750
STRAW MULCH
4,000
LOD
LOD
STABILIZE AREA DISTURBED
FOR STAGING (0.06 AC)
2450
LOD
v v
\ SILT FENCE DOWNSLOPE /��
I( ( A — OF STAGING AREA 'I/i/,
7 —
/ — — 7
- + + + -
+ + + +
— _ — 2�Tp DISPOSAL SITE
/
PERMANENT SEEDING SCHEDULE (25 LBS / AC)
7
SPECIES
COMMON NAME
PERCENT
Andropogon gerardii
BIG BLUESTEM
12%
Carex vulpinoidea
FOX SEDGE
10%
Coreopsis lanceolata
LANCE LEAF TICKSEED
5%
Elymus virginicus
VI RGI NIA WI L DRY E
15%
Festuca ovina var. duriuscula
HARD FESCUE
5%
Panicum virgatum
SWITCHGRASS
10%
Rudbeckia hirta
BLACKEYED SUSAN
1%
Schizachyrium scoparium
LITTLE BLUESTEM
8%
Sorghastrum nutans
I N DIAN GRASS
9%
Tridens flavus
PURPLE TOP
12%
Tripsacum dactyloides
EASTERN GAM MAG RASS
13%
TOTAL
100%
z
w
W
O
LU
1)
W
LU
1)
NORTH FORK M
HENDERSON COUNTY - NORTH CAROLINA
STABILIZATION PLAN - N. FORK RESERVOIR
\.\N CARP/ /
FINAL
DRAWING
REVISIONS:
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
1" = 40'
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
4.1

STABILIZATION NOTES AND SPECIFICATIONS
1. ALL DISTURBED AREAS WITH LOD SHALL BE STABILIZED USING
TEMPORARY AND PERMANENT SEEDING AS DEFINED IN THE
SEEDING SCHEDULE AND THE APPROVED DREDGING OPERATIONS
PLAN
2. SUPPLEMENTAL PLANTING ACTIVITIES MAY BE REQUIRED IF FINAL
STABILIZATION OF THE SITE IS NOT REACHED WITHIN NCDEMLR
SPECIFIED TIME PERIOD.
TEMPORARY SEEDING NOTES AND
SPECIFICATIONS
3. TEMPORARY SEEDING AND MULCHING SHALL BE APPLIED TO ALL
AREAS AND ACCESS ROUTES DISTURBED DURING CONSTRUCTION.
4. ALL SEED AND SEED VARIETIES MUST BE FREE OF STATE AND
FEDERALLY LISTED NOXIOUS WEED SEED AND INVASIVE SPECIES.
5. ALL DISTURBED AREAS WILL BE SEEDED WITH TEMPORARY SEED
AND MULCHED WITH WHEAT STRAW. SEEDING WILL BE
PERFORMED USING A BROADCAST SPREADER. OTHER METHODS
MAY BE USED BUT MUST BE APPROVED BY ENGINEER IN ADVANCE
OF INSTALLATION.
6. MAINTENANCE OF SEEDED AREAS SHALL CONSIST OF WATERING,
WEED AND PEST CONTROL, FERTILIZATION, EROSION REPAIR,
RESEEDING, AND INCIDENTAL OPERATIONS AS NECESSARY TO
ESTABLISH A HEALTHY, VIGOROUS, WEED FREE AND DISEASE FEE
UNIFORM STAND OF GRASS. ALL AREAS WHICH FAIL TO SHOW A
UNIFORM STAND OF GRASS FOR ANY REASON SHALL BE TREATED
REPEATEDLY UNTIL A UNIFORM STAND OF AT LEAST 90%
COVERAGE IS ATTAINED WITH NO BARE AREA GREATER THAN FIVE
SQUARE FEET.
WI I I ing
PERMANENT SEEDING NOTES AND
SPECIFICATIONS
7. PERMANENT SEEDING SHALL OCCUR IN CONJUNCTION WITH
TEMPORARY SEEDING WHERE APPLICABLE. IDEALLY, PERMANENT
SEEDING SHALL OCCUR DURING THE PLANTING SEASON FOR EACH
SEED TYPE. AREAS FERTILIZED FOR TEMPORARY SEEDING SHALL BE
SUFFICIENTLY FERTILIZED FOR PERMANENT SEEDING; ADDITIONAL
FERTILIZER IS NOT REQUIRED FOR PERMANENT SEEDING.
8. ALL SEED AND SEED VARIETIES MUST BE FREE OF STATE AND
FEDERALLY LISTED NOXIOUS WEED SEED AND INVASIVE SPECIES.
9. THE CONTRACTOR SHALL LOOSEN THE SOIL TO A MINIMUM DEPTH
OF 4-INCHES AND GRADE TO A SMOOTH, EVEN SURFACE WITH A
LOOSE, UNIFORMLY FINE TEXTURE. THE AREAS TO BE SEEDED ARE
THEN TO BE ROLLED AND RAKED TO REMOVE RIDGES AND FILL
DEPRESSIONS TO MEET FINISH GRADES. THE CONTRACTOR IS TO
LIMIT SUB GRADE AND FINISH GRADE PREPARATION TO AREAS
THAT WILL BE PLANTED IMMEDIATELY. PREPARED AREAS ARE TO BE
RESTORED IF ERODED OR OTHERWISE DISTURBED AFTER FINE
GRADING AND BEFORE PLANTING.
10. SEED SHALL BE SOWN WITH A SPREADER OR A SEEDING MACHINE.
SEED IS NOT TO BE BROADCAST OR DROPPED WHEN WIND
VELOCITY EXCEEDS 5 MPH. SEED SHALL BE EVENLY DISTRIBUTED BY
SOWING IN TWO DIRECTIONS AT RIGHT ANGLES TO EACH OTHER.
WET SEED OR SEED THAT IS MOLDY OR OTHERWISE DAMAGED IN
TRANSIT OR STORAGE IS NOT TO BE USED. AFTER BEGIN SOWN,
THE SEED SHALL BE RAKED INTO THE TOP 1/4 INCH OF THE
TOPSOIL, LIGHTLY ROLLED, AND WATERED WITH FINE SPRAY.
SEEDED AREAS ON STREAM BANKS SHALL BE PROTECTED WITH
COIR FIBER MATTING.
g
0
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0
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LOD � LOD'�II�ILOD'�IIII
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li-1 I +/4+ -------+-
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+
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I ,\l +++ +I + + + +„�I +I +I++
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ICI+++++It' ++I + I+++ ++ +++(+ #+++I++
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,
()
+
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0
0
•
80
Feet
SCALE: 1" = 40'
+ + +
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+ +=-/--
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+ + +
lo
TEMPORARY SEEDING SCHEDULE
♦
4
DATE
TYPE
APP. RATE (LBS/AC)
JAN 1 - MAY 1
RYE GRAIN
120
GROUND AG. LIMESTONE
2,000
10-10-10 FERTILIZER
750
STRAW MULCH
4,000
MAY 1 - AUG 15
GERMAN MILLET
50
GROUND AG. LIMESTONE
2,000
10-10-10 FERTILIZER
750
STRAW MULCH
4,000
AUG 15 - DEC 30
RYE GRAIN
120
GROUND AG. LIMESTONE
2,000
10-10-10 FERTILIZER
750
STRAW MULCH
4,000
1
rl
o=
01
r_
0-
01
STABILIZE FILL AREA
(0.75 AC)
1
1
1
I
1
1
1
I
I
I
I
•
1
- + + +
+ + + +
1
1
1
1
1
1
1
1
1
1
1
1
1
1
PERMANENT SEEDING SCHEDULE (25 LBS / AC)
SPECIES
COMMON NAME
PERCENT
Festucaovina
HARD FESCUE
50
Festuca arundinacea
TALL FESCUE
25
Poa pratensis
KENTUCKY BLUEGRASS
25
NORTH FORK M
HENDERSON COUNTY - NORTH CAROLINA
J
z
0
H
N
J
H
N
FINAL
DRAWING
REVISIONS:
CoH: 01/28/2021
DWR: 01/19/2022
DATE: 10/14/2022
PLOT SIZE: 24" x 36"
1" = 40'
H.D.: NAD83 (NCSP)
V.D.: NAVD88
JE PID: 8102
4.2