20150610 Ver 3_More Info Received_20171002

Homewood, Sue
From: Cutler, James D <[e-mail]>
Sent: Monday, October 02, 2017 10:04 AM
To: Homewood, Sue
Cc: Harmon, Richard G; [e-mail]; Ruhl, Cedric
Subject: [External] Dan River
Attachments: DAN RIVER BANK ARMORING DESIGN.pdf
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Hi Sue:
RE: Dan River IP Application/Certification - RAI response
Please find herein the updated engineering drawings as requested by you (i.e., for the dewatering/pump around for the installation
of the culverts and the stream stabilization work adjacent to the culvert work). The updated drawings identify the 20 feet of
temporary disturbance and the diversion detail.
Please do not hesitate to contact me if you have any questions.
Jim Cutler
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W
—E-
-F
DNR C901.XXX.001 IREV, 0
RAILROAD BRANCH CREEK BANK EROSION STABILIZATION IMPROVEMENTS
DAN RIVER STEAM STATION
DUKE ENERGY ISSUE No. DR -134
900 S. EDGEWOOD ROAD
ROCKINGHAM COUNTY. NORTH CAROLINA
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MAP SOURCE: ESRI WORLD TOPOGRAPHIC BASEMAP
CONTACT INFORMATION
OWNER: DUKE ENERGY CAROLINAS, INC
ADDRESS: 400 SOUTH TRYON STREET
CHARLOTTE, NORTH CAROLINA 28201
ENGINEER AMEC FOSTER WHEELER
ADDRESS: 2801 YORKMONT ROAD, SUITE 100
CHARLOTTE, NORTH CAROLINA 28208
PHONE: [phone]
Latitude: 36°29'11. 1 6"N, Longitude: 79°43'1 5.57"W
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PROPOSED BANK REPAIRS
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SITE VICINITY MAP - 111 = 750'
MAP SOURCE: ESRI WORLD TOPOGRAPHIC BASEMAP
DRAWING INDEX
SHEET NUMBER
SHEET TITLE
.001
COVER SHEET
.002
GENERAL NOTES
.003
SITE AERIAL
.004
EXISTING CONDITIONS
.005
BANK ARMORING DESIGN
PLAN
.006
EROSION CONTROL
.007
DETAILS
PROJECT DESCRIPTION:
CONSTRUCT BANK ARMORING IMPROVEMENTS ON THE WEST BANK OF RAILROAD BRANCH CREEK BETWEEN THE TWO
EXISTING ACCESS ROAD CULVERT CROSSINGS. FOR ACCESS ROAD DETAILS REFER TO DRAWINGS DNR_C901.001.001
THROUGH DNR C901.001.007 UNDER SEPARATE COVER.
TOTAL DISTURBED AREA: 0.23 ACRE
RIVER BASIN: ROANOKE RIVER
TOTAL LINEAR FEET OF STREAM IMPACTS: 120 L.F.
REV DATE JOB NO. PROJECT TYPE DES I DFTR I CHKD I ENGR I APPD
INCHES 1 2 3 TENTHS 10 20 30 4 5 6
Plotted By: Bell, Josh Sheet Set: DAN RIVER BANK ARMORING DESIGN Layout: .001 COVER SHEET September 28, 2017 08: 04: 02am 0: \Duke\DanRiver\781015041 8—Dan River OnCaII\P1ansheets\DR-0134 BankArmoringDeslgn\.001 COVER SHEET.dwg
DAN RIVER STEAM STATION
ROCKINGHAM COUNTY, NORTH CAROLINA N
NC STATE MAP
MAP SOURCE: USGS COUNTY DIGITAL MAPS
Environment &
Infrastructure
2801 YORKMONT ROAD
4v
amec
SUITE 100
CHARLOTTE, NC 28208
foster
TEL: [phone]
FAX: [phone]
wheeler
LICENSURE:
NC ENG: F-1253
NC GEOLOGY: C-247
TITLE RAILROAD BRANCH CREEK BANK STABILIZATION
DUKE ENERGY ISSUE NO. DR -134
DAN RIVER STEAM STATION
COVER SHEET
FOR
DRAFT FOR REVIEW
SEAL SCALE: AS SHOWN DES: RFK
DUKE�\A ARO � DWG TYPE: DWG DFTR : RFK
b� r� ENER(107' Y� JOB NO: 7810150418 CHKD: JMB
DATE: 04/17/2017 ENGR: JMB
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032667 gZII1 FILENAME: .001 COVER SHEET.dwg APPD: JMB
"i •, -I DWG SIZE DRAWING NO. REVISION
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DESCRIPTION
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PROJECT DESCRIPTION 0
THE PROPOSED AREA OF CONSTRUCTION UNDER DR -134 SCOPE OF WORK WILL INCLUDE: THE REMOVAL OF TREES AND WOODY
VEGETATION, THE INSTALLATION OF BANK ARMORING ALONG THE WEST BANK OF RAILROAD BRANCH CREEK, PARALLEL TO
SECONDARY ASH BASIN DAM EMBANKMENT INSTALLATION OF REQUIRED EROSION/SEDIMENT CONTROL MEASURES. THE TOTAL
PROPOSED CLEARING AREA (DISTURBED AREA) IS APPROXIMATELY 0.23 ACRE.
THE FOLLOWING DRAWINGS INCLUDE DR -134 SCOPE OF WORK ONLY.
EROSION AND SEDIMENTATION CONTROL NARRATIVE
THE EROSION AND SEDIMENT CONTROL MEASURES FOR THIS PROJECT INVOLVE THE PLACEMENT OF A VARIETY OF EROSION
AND SEDIMENT CONTROL MEASURES AT STRATEGIC LOCATIONS THROUGHOUT THE DEVELOPMENT. THESE MEASURES
A INCLUDE:
1. FILTREXX SOXX (OR EQUIVALENT)
2. TEMPORARY CONSTRUCTION ENTRANCES
3. PERMANENT SEED
THESE MEASURES ARE TO BE INSTALLED PRIOR TO CLEARING. ALL EROSION CONTROL MEASURES SHALL BE PROPERLY
MAINTAINED UNTIL THE COMPLETION OF ALL CONSTRUCTION ACTIVITIES AND ALL DISTURBED AREAS HAVE BEEN STABILIZED.
ADDITIONAL CONTROL MEASURES MAY BE REQUIRED DURING CONSTRUCTION IN ORDER TO CONTROL EROSION AND/OR
OFFSITE SEDIMENTATION. ALL TEMPORARY CONTROL MEASURES SHALL BE REMOVED ONCE CONSTRUCTION IS COMPLETE
AND THE SITE IS STABILIZED.
EROSION CONTROL MEASURE NOTES
1. TEMPORARY CULVERTS HAVE BEEN INSTALLED AT TWO (2) LOCATIONS WITHIN THE RAILROAD BRANCH CREEK. THE
INSTALLATION OF THESE CULVERTS WAS PERMITTED BY THE USACE AND NCDEQ.
2. THE EXISTING, GRAVEL ACCESS ROAD ALONG THE CREST OF THE ADJACENT DIKE WILL SERVE AS THE ACCESS POINT FOR
THE PROJECT, AND AS THE CONSTRUCTION ENTRANCE.
3. PLACE FILTREXX SOXX (OR EQUIVALENT) DOWN -GRADIENT OF THE CONSTRUCTION AREA AS NOTED ON THE PLANS AND AS
INDICATED IN THE DETAILS.
4. EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CONSTRUCTED AND MAINTAINED PER THE LATEST VERSION OF
NCDEQ "EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL."
GENERAL NOTES
1. ALL EROSION CONTROL MEASURES SHALL BE PROPERLY MAINTAINED DURING CONSTRUCTION UNTIL THE COMPLETION OF
CONSTRUCTION ACTIVITIES AND DISTURBED AREAS HAVE BEEN STABILIZED. TEMPORARY EROSION CONTROL MEASURES
SHALL BE REMOVED ONCE CONSTRUCTION IS COMPLETE AND THE SITE IS STABILIZED.
2. SEDIMENT AND EROSION CONTROL MEASURES AND PLANTED AREAS SHALL BE INSPECTED BY DUKE ENERGY OR THEIR
_C REPRESENTATIVE EVERY SEVEN (7) CALENDAR DAYS AND AFTER EACH RAINFALL OCCURRENCE THAT EXCEEDS ONE-HALF
(0.5) INCH IN A 24-HOUR PERIOD. DAMAGED OR INEFFECTIVE MEASURES SHALL BE REPAIRED OR REPLACED, AS NECESSARY,
AS SOON AS PRACTICAL.
3. IF NECESSARY SEEDED AREAS SHALL BE FERTILIZED, RESEEDED AS NECESSARY AND MULCHED ACCORDING TO THE
SEEDING PLAN TO MAINTAIN A VIGOROUS, DENSE VEGETATIVE COVER. SEEDED AREAS SHALL BE INSPECTED PERIODICALLY
BY DUKE ENERGY UNTIL FINAL GROUND COVER HAS BEEN ESTABLISHED. THE CONTRACTOR IS RESPONSIBLE FOR
RESTORING VEGETATION TO ITS ORIGINAL CONDITION, OR BETTER, FOR UP TO A YEAR. SEEDING SHALL BE CONSISTENT
WITH REQUIREMENTS OF THE VEGETATION MAINTENANCE AND IMPLEMENTATION PLAN (VMIP) FOR THE DAN RIVER STATION.
4. THE OWNER OR THEIR AGENT SHOULD ADHERE TO THE SELF -INSPECTION PROGRAM FOR EROSION AND SEDIMENT CONTROL
(EFFECTIVE OCTOBER 1, 2010). DETAILS OF THE PROGRAM AND RECOMMENDED INSPECTION FORMS CAN BE FOUND AT THE
FOLLOWING WEBSITE:
WWW.DLR.ENR.STATE.NC.US/PAGES/SEDIMENTATION_NEW.HTML
5. THE OWNER'S CONTRACTOR IS RESPONSIBLE FOR NOTIFYING UTILITY COMPANIES TO LOCATE ALL UNDERGROUND UTILITIES
PRIOR TO ANY CONSTRUCTION.
6. STABILIZATION MEASURES SHALL BE INITIATED AS SOON AS PRACTICABLE IN PORTIONS OF THE SITE WHERE CONSTRUCTION
D ACTIVITIES HAVE TEMPORARILY OR PERMANENTLY CEASED, BUT IN NO CASE MORE THAN SEVEN (7) DAYS FOR PERIMETER
AREAS AND SLOPES GREATER THAN 3H:1V AND NO MORE THAN FOURTEEN (14) DAYS FOR OTHER AREAS AFTER WORK HAS
CEASED.
7. CONSTRUCTION ENTRANCES/EXITS WILL BE USED AT DOT/PUBLIC ROAD CROSSINGS. THE CONTRACTOR MUST TAKE
NECESSARY ACTION TO MINIMIZE THE TRACKING OF MUD ONTO THE PAVED ROADWAY CONSTRUCTION AREAS. THE
CONTRACTOR SHALL DAILY REMOVE MUD/SOIL FROM PAVEMENT, AS MAY BE REQUIRED.
F
STANDARDS
ALL EROSION AND SEDIMENTATION CONTROLS SHALL BE IN ACCORDANCE WITH THE NORTH CAROLINA SEDIMENTATION
POLLUTION CONTROL ACT OF 1973. CONSTRUCTION DETAILS AND SPECIFICATIONS WITHIN THIS PLAN WERE DERIVED FROM THE
EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL DATED JUNE, 2006, PREPARED BY THE NORTH CAROLINA
SEDIMENTATION CONTROL COMMISSION, NCDEQ AND NCAES.
SEEDING:
1. SEE SEEDING SPECIFICATION ON THIS SHEET.
2. TEMPORARY OR PERMANENT SEEDING SHALL BE PERFORMED AS PER NCDEQ'S REQUIREMENT WITHIN 14 CALENDAR DAYS
OF COMPLETION OF GRADING. AREAS THAT FALL UNDER MORE STRINGENT CRITERIA SHALL BE STABILIZED WITHIN 7
CALENDAR DAYS.
CONSTRUCTION SEQUENCE
1. HOLD PRECONSTRUCTION MEETING.
3. INSTALL EROSION CONTROL MEASURES ALONG PERIMETER OF DISTURBANCE LIMITS. (SEE SHEET .006).
4. FILTREXX SOXX (OR EQUIVALENT) SHALL BE TURNED UP THE SLOPE TO PROMOTE CONTAINMENT AND TO PREVENT
CONCENTRATION OF FLOW.
5. FILTREXX SOXX (OR EQUIVALENT) SHALL BE MOVED ONLY TO PROVIDE EQUIPMENT ACCESS, BUT SHALL BE REPLACED PRIOR
TO ANY LAND DISTURBANCE ABOVE THE SECTION OF FILTREXX SOXX (OR EQUIVALENT).
6. ALL VEGETATION SHALL BE REMOVED (BUSHES, TREES AND SHRUBS) TO BE FLUSH OR WITHIN 6 INCHES OF THE GROUND.
7. SEDIMENT CONTROL MEASURES SHALL NOT BE REMOVED UNTIL AREAS HAVE BEEN STABILIZED.
1O TWO SEPARATE PROJECTS INDENTIFIED AS "DR -131" AND "DR -134" WILL BE PERFORMED BY DUKE ENERGY INCLOSE PROXIMITY
OF EACH OTHER. THE SCOPE OF DR -131 INCLUDES INSTALLATION OF TWO PERMANENT CULVERTS WITHIN RAILROAD BRANCH
CREEK AND PROVIDING ACCESS ROAD ALONG THE TOE OF SECONDARY ASH BASIN PARALLELING DAN RIVER. THIS IS INCLUDED
UNDER SEPARATE COVER. FOR DR -131 SCOPE OF WORK REFER TO DRAWINGS DNR_C901.001.001 THROUGH DNR_C901.001.007.
INCHES 1 2 3 ITENTHS 10 20 30
I
5
DEFINITION
CONTROLLING RUNOFF AND EROSION ON DISTURBED AREAS BY ESTABLISHING PERENNIAL
VEGETATIVE COVER WITH SEED.
PURPOSE
TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS, AND TO
PERMANENTLY STABILIZE SUCH AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTS TO SITE
CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS.
SPECIFICATIONS
SEEDBED REQUIREMENTS
ESTABLISHMENT OF VEGETATION SHOULD NOT BE ATTEMPTED ON SITES THAT ARE
UNSUITABLE DUE TO EXCESSIVE SOIL COMPACTION, INAPPROPRIATE SOIL TEXTURE, POOR
DRAINAGE, CONCENTRATED OVERLAND FLOW, OR STEEPNESS OF SLOPE UNTIL MEASURES
HAVE BEEN TAKEN TO CORRECT THESE PROBLEMS.
TO MAINTAIN A GOOD STAND OF VEGETATION, THE SOIL MUST MEET CERTAIN MINIMUM
REQUIREMENTS AS A GROWTH MEDIUM. THE EXISTING SOIL SHOULD HAVE THESE CRITERIA:
• ENOUGH FINE-GRAINED (SILT AND CLAY) MATERIAL TO MAINTAIN ADEQUATE MOISTURE
AND NUTRIENT SUPPLY (AVAILABLE WATER CAPACITY OF AT LEAST .05 INCHES WATER TO
1 INCH OF SOIL).
• SUFFICIENT PORE SPACE TO PERMIT ROOT PENETRATION
• SUFFICIENT DEPTH OF SOIL TO PROVIDE AN ADEQUATE ROOT ZONE. THE DEPTH TO ROCK
OR IMPERMEABLE LAYERS SUCH AS HARDPANS SHOULD BE 12 INCHES OR MORE, EXCEPT
ON SLOPES STEEPER THAN 2:1 WHERE THE ADDITION OF SOIL IS NOT FEASIBLE.
• A FAVORABLE PH RANGE FOR PLANT GROWTH, USUALLY 6.0 - 6.5.
• FREE FROM LARGE ROOTS, BRANCHES, STONES, LARGE CLODS OF EARTH, OR TRASH OF
ANY KIND. CLODS AND STONES MAY BE LEFT ON SLOPES STEEPER THAN 3:1 IF THEY ARE
TO BE HYDRO SEEDED.
IF ANY OF THE ABOVE CRITERIA ARE NOT MET - I.E., IF EXISTING SOIL IS TOO COARSE, DENSE,
SHALLOW OR ACIDIC TO FOSTER VEGETATION - SPECIAL AMENDMENTS ARE REQUIRED. THE
SOIL CONDITIONERS DESCRIBED BELOW MAY BE BENEFICIAL OR, PREFERABLY, TOPSOIL MAY
BE APPLIED.
SEEDBED PREPARATION
INSTALL NECESSARY MECHANICAL EROSION AND SEDIMENTATION CONTROL PRACTICES
BEFORE SEEDING, AND COMPLETE GRADING ACCORDING TO THE APPROVED PLAN.
LIME AND FERTILIZER NEEDS SHOULD BE DETERMINED BY SOIL TESTS. DIRECTIONS, SAMPLE
CARTONS, AND INFORMATION SHEETS ARE AVAILABLE THROUGH COUNTY AGRICULTURAL
EXTENSION OFFICES. TESTING IS ALSO DONE BY COMMERCIAL LABORATORIES.
WHEN SOIL TESTS RESULTS ARE NOT AVAILABLE, FOLLOW RATES SUGGESTED IN THE
SEEDING SPECIFICATIONS SHOWN AT RIGHT. APPLICATION RATES USUALLY FALL INTO THE
FOLLOWING RANGES:
�eldel1101IexLelVOff1it0L7_104Mil06*1 to] 012
LIGHT -TEXTURED, SANDY SOILS: 1-1/2 TONS/ACRE
HEAVY -TEXTURED, CLAYEY SOILS: 2-3 TONS/ACRE
• FERTILIZER:
GRASSES: 800-1200 LB/ACRE OF 10-10-10 (OR THE EQUIVALENT)
GRASS -LEGUME MIXTURES: 800-1200 LB/ACRE OF 10-10-10 (OR THE EQUIVALENT)
APPLY LIME AND FERTILIZER EVENLY AND INCORPORATE INTO THE TOP 4-6 INCHES OF SOIL BY
DISKING OR OTHER SUITABLE MEANS. OPERATE MACHINERY ON THE CONTOUR. WHEN USING
A HYDRO SEEDER, APPLY LIME AND FERTILIZER TO A ROUGH, LOOSE SURFACE.
:Ze1�Le7:1�►16Y�L1yLy�y,:1[eliri>�y�q�11►[e_
COMPLETE SEEDBED PREPARATION BY BREAKING UP LARGE CLODS AND RAKING INTO A
SMOOTH, UNIFORM SURFACE (SLOPES LESS THAN 3:1). FILL IN OR LEVEL DEPRESSIONS THAT
CAN COLLECT WATER. BROADCAST SEED INTO A FRESHLY LOOSENED SEEDBED THAT HAS
NOT BEEN SEALED BY RAINFALL.
SEEDING
SEEDING DATES GIVEN IN THE SEEDING MIXTURE SPECIFICATIONS ARE DESIGNATED AS
"BEST" OR "POSSIBLE". SEEDINGS PROPERLY CARRIED OUT WITHIN THE "BEST" DATES HAVE A
HIGH PROBABILITY OF SUCCESS. IT IS ALSO POSSIBLE TO HAVE SATISFACTORY
ESTABLISHMENT WHEN SEEDING OUTSIDE THESE DATES. HOWEVER, AS YOU DEVIATE FROM
THEM, THE PROBABILITY OF FAILURE INCREASES RAPIDLY. SEEDING ON THE LAST DATE
SHOWN UNDER "POSSIBLE" MAY REDUCE CHANGES OF SUCCESS BY 30-50%. ALWAYS TAKE
THIS INTO ACCOUNT IN SCHEDULING LAND -DISTURBING ACTIVITIES.
USE CERTIFIED SEED FOR PERMANENT SEEDING WHENEVER POSSIBLE
LABELING OF NON -CERTIFIED SEED IS ALSO REQUIRED BY LAW. LABELS CONTAIN IMPORTANT
INFORMATION ON SEED PURITY, GERMINATION, AND PRESENCE OF WOOD SEEDS. SEEDS
MUST MEET STATE STANDARDS FOR CONTENT OF NOXIOUS WEEDS. DO NO ACCEPT SEED
CONTAINING "PROHIBITED" NOXIOUS WEED SEED.
INOCULATE LEGUME SEED WITH THE RHIZOBIUM BACTERIA APPROPRIATE TO THE SPECIES OF
LEGUME.
APPLY SEED UNIFORMLY WITH A CYCLONE SEEDER, DROP -TYPE SPREADER, DRILL,
CULTIPACKER SEEDER, OR HYDRO SEEDER ON A FIRM, FRIABLE SEEDBED.
4 5
REV I DATE I JOB NO
Plotted By: Bell, Josh Sheet Set: DAN RIVER BANK ARMORING DESIGN Layout:.002 GENERAL NOTES September 28, 2017 08: 04: 50am 0: \Duke\DanRiver\781015041 8—Dan River On—Ca11\P1ansheets\DR-0134 BankArmoringDeslgn\.002 NOTES.dwg
I I I
8
DNR C901.XXX. 002
REV. 0
WHEN USING A DRILL OR CULTIPACKER SEEDER, PLANT SMALL GRAINS NO MORE THAN 1 INCH
PERMANENT SEEDING SPECIFICATIONS
DEEP, GRASSES AND LEGUMES NO MORE THAN 1/2 INCH. EQUIPMENT SHOULD BE
CALIBRATED IN THE FIELD FOR THE DESIRED SEEDING RATE.
SEEDING MIXTURE
WHEN USING BROADCAST -SEEDING METHODS, SUBDIVIDE THE AREA INTO WORKABLE
SPECIES RATE (LB/ACRE) OPTIMUM DATES TO PLANT
SECTIONS AND DETERMINE THE AMOUNT OF SEED NEEDED FOR EACH SECTION. APPLY
(REMARKS)
ONE-HALF THE SEED WHILE MOVING BACK AND FORTH ACROSS THE AREA, MAKING A UNIFORM
PATTERN: THEN APPLY THE SECOND HALF IN THE SAME WAY, BUT MOVING AT RIGHT ANGLES
TO THE FIRST PASS.
BAHIA GRASS (ALONE) 40 MARCH. 20 - JUNE 15 (SLOW TO
BECOME ESTABLISHED)
MULCH ALL PLANTINGS IMMEDIATELY AFTER SEEDING.
BAHIA GRASS (MIX)- 30 MARCH. 20 - JUNE 15 (SLOW TO
BECOME ESTABLISHED)
HYDRO SEEDING
BERMUDA GRASS, HULLED (ALONE) 8-12 APRIL - JULY 15 (QUICK COVER, SOD F
SURFACE ROUGHENING IS PARTICULARLY IMPORTANT WHEN HYDRO SEEDING, AS A
FORMING, PARTIAL WINTERKILL)
ROUGHENED SLOPE WILL PROVIDE SOME NATURAL COVERAGE FOR LIME, FERTILIZER, AND
SEED. THE SURFACE SHOULD NOT BE COMPACTED OR SMOOTH. FINE SEEDBED
BERMUDA GRASS, HULLED (MIX)* 4-6 APRIL - JULY 15 (QUICK COVER, SOD
PREPARATION IS NOT NECESSARY FOR HYDRO SEEDING OPERATIONS: LARGE CLODS,
FORMING, PARTIAL WINTERKILL)
STONES, AND IRREGULARITIES PROVIDE CAVITIES IN WHICH SEEDS CAN LODGE.
FESCUE, TALL, KY31 (ALONE) 40 AUG. 15 - OCT. (SELDOM SEED
ALONE, NOT FOR DRY OR WET SITES)
RATE OF WOOD FIBER (CELLULOSE) APPLICATION SHOULD BE AT LEAST 2,000 LB/ACRE.
FESCUE, TALL, KY31 (MIX)* 20 AUG. 15 - OCT. (SELDOM SEED
ALONE, NOT FOR DRY OR WET SITES)
APPLY LEGUME INOCULANTS AT FOUR TIMES THE RECOMMENDED RATE WHEN ADDING
SERICEA LESPEDEZA (SCARIFIED) 40 AUG. 20 - OCT. (GOOD FOR SLOPES,
INOCULANT TO A HYDRO SEEDER SLURRY.
CUTS, AND FILLS THAT REQUIRE
LOW MAINTENANCE)
IF A MACHINERY BREAKDOWN OF 1/2 TO 2 HOURS OCCURS, ADD 50% MORE SEED TO THE
TANK, BASED ON THE PROPORTION OF THE SLURRY REMAINING. THIS SHOULD COMPENSATE
FOR DAMAGE TO SEED. BEYOND 2 HOURS, A FULL RATE OF NEW SEED MAY BE NECESSARY.
*MIX MEANS 2 OR MORE LONG TERM SPECIES PLUS SHORT TERM SPECIES.
LIME IS NOT NORMALLY APPLIED WITH A HYDRAULIC SEEDER BECAUSE IT IS ABRASIVE. IT CAN
BE BLOWN ONTO STEEP SLOPES IN DRY FORM.
SOIL AMENDMENTS
APPLY LIME AND FERTILIZER ACCORDING TO SOIL TESTS, OR APPLY 4,000 LB/ACRE GROUND
MAINTENANCE
AGRICULTURAL LIMESTONE AND 1,000 LB/ACRE 10-10-10 FERTILIZER.
GENERALLY, A STAND OF VEGETATION CANNOT BE DETERMINED TO BE FULLY ESTABLISHED
UNTIL SOIL COVER HAS BEEN MAINTAINED FOR ONE FULL YEAR FROM PLANTING. INSPECT
SEEDED AREAS FOR FAILURE AND MAKE NECESSARY REPAIRS AND RESEEDINGS WITHIN THE
SAME SEASON, IF POSSIBLE.
MULCH
APPLY 4,000-5,000 LB/ACRE GRAIN STRAW OR EQUIVALENT COVER OF ANOTHER SUITABLE
RESEEDING --IF A STAND HAS INADEQUATE COVER, RE-EVALUATE CHOICE OF PLANT
MULCHING MATERIAL. ANCHOR MULCH BY TACKING WITH ASPHALT, ROVING, OR NETTING.
MATERIALS AND QUANTITIES OF LIME AND FERTILIZER. RE-ESTABLISH THE STAND AFTER
NETTING IS THE PREFERRED ANCHORING METHOD ON STEEP SLOPES.
SEEDBED PREPARATION OR OVER- SEED THE STAND. CONSIDER SEEDING TEMPORARY,
ANNUAL SPECIES IF THE TIME OF YEAR IS NOT APPROPRIATE FOR PERMANENT SEEDING.
MAINTENANCE
IF VEGETATION FAILS TO GROW, SOIL MUST BE TESTED TO DETERMINE IF ACIDITY OR
RE -FERTILIZE IN THE SECOND YEAR UNLESS GROWTH IS FULLY ADEQUATE. MAY BE MOWED
NUTRIENT IMBALANCE IS RESPONSIBLE.
ONCE OR TWICE A YEAR, BUT MOWING IS NOT NECESSARY. RESEED, FERTILIZE, AND MULCH
DAMAGED AREAS IMMEDIATELY.
FERTILIZATION --ON THE TYPICAL DISTURBED SITE, FULL ESTABLISHMENT USUALLY REQUIRES
RE -FERTILIZATION IN THE SECOND GROWING SEASON. FINE TURF REQUIRES ANNUAL
MAINTENANCE FERTILIZATION. USE SOIL TESTS IF POSSIBLE OR FOLLOW THE GUIDELINES
PROVISIONS FOR PERMANENT GROUNDCOVER SUFFICIENT TO RESTRAIN EROSION MUST BE
GIVEN FOR THE SPECIFIC SEEDING MIXTURE.
ACCOMPLISHED FOR ALL DISTURBED AREAS WITHIN 15 WORKING DAYS OR 90 CALENDAR DAYS
(WHICHEVER IS SHORTER) FOLLOWING COMPLETION OF CONSTRUCTION OR DEVELOPMENT.
TEMPORARY SEEDING SPECIFICATIONS
SEEDING MIXTURE
SPECIES RATE (LB/ACRE) OPTIMUM DATES TO PLANT
RYE GRAIN (ALONE) 56 FEB. -MARCH; AUG. 15 - NOV. 20 (QUICK,
DENSE COVER)
RYE GRAIN (MIX)* 10 FEB. -MARCH; AUG. 15 - NOV, 20 (QUICK,
DENSE COVER)
BROWNTOP MILLET (ALONE) 40 APR. 20 - AUG. 15 (QUICK COVER)
BROWNTOP MILLET (MIX)* 10 APR. 20 - AUG. 15 (QUICK COVER)
BROWNTOP MILLET (ALONE) 50 AUG. 10 - OCT. 10 (COMPETITIVE, DENSE)
BROWNTOP MILLET (MIX)* 8 AUG. 10 - OCT. 10 (COMPETITIVE, DENSE)
*MIX MEANS 2 OR MORE LONG TERM SPECIES PLUS SHORT TERM SPECIES.
SOIL AMENDMENTS
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 3,000 LB/ACRE GROUND
AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE STRAW. ANCHOR MULCH BY TACKING WITH ASPHALT, ROVING OR A
MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A
MULCH ANCHORING. TOOL.
MAINTENANCE
RE -FERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, RE -FERTILIZE AND MULCH
IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE.
THE ANGLE FOR GRADED SLOPES AND FILLS SHALL BE NO GREATER THAN THE ANGLE THAT
CAN BE RETAINED BY VEGETATIVE COVER OR OTHER ADEQUATE EROSION -CONTROL DEVICES
OR STRUCTURES. IN ANY EVENT, SLOPES LEFT EXPOSED WILL, WITHIN 21 CALENDAR DAYS OF
COMPLETION OF ANY PHASE OF GRADING, BE PLANTED OR OTHERWISE PROVIDED WITH
TEMPORARY OR PERMANENT GROUND COVER, DEVICES, OR STRUCTURES SUFFICIENT TO
RESTRAIN EROSION.
PROVISIONS FOR PERMANENT GROUNDCOVER SUFFICIENT TO RESTRAIN EROSION MUST BE
ACCOMPLISHED FOR ALL DISTURBED AREAS WITHIN 15 WORKING DAYS OR 90 CALENDAR DAYS
(WHICHEVER IS SHORTER) FOLLOWING COMPLETION OF CONSTRUCTION OR DEVELOPMENT.
PROJECT TYPE DES I DFTR I CHKD I ENGR I APPD
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Environment & TITLE RAILROAD BRANCH CREEK BANK STABILIZATION
Infrastructure DUKE ENERGY ISSUE NO. DR -134
2801 YORKMONT ROADDAN RIVER STEAM STATION F
SUITE 100 amec
CHARLOTTE, INC 28208 foster
TEL: [phone] GENERAL NOTES
FAX: [phone] wheeler
LICENSURE:
NC ENG: F-1253 FOR
NC GEOLOGY: C-247
DRAFT FOR REVIEW
SEAL SCALE: AS SHOWN DES: RFK
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TITLERAILROAD BRANCH CREEK BANK STABILIZATION DUKE
O �Environment & ENERGY ISSUE NO. DR -134
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SUITE 100
F---------1 / / CHARLOTTE, NC 28208 f oste r
TEL: [phone] EXISTING CONDITIONS
/ Q / FAX:[phone] wheeler
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LICENSURE:
/ NC ENG. F-1253 FOR
NC GEOLOGY: C-247
DRAFT FOR REVIEW
��I 7 SEAL
NOTES: SCALE: AS SHOWN DES: RFK
1. SURVEY DATA SHOWN ON THIS SHEET IS FROM A DRAWING TITLED "AERIAL TOPOGRAPHIC SURVEY - DAN RIVER PLANT", PREPARED BY WSP, CARY NC. PHOTOGRAPHY DATE: APRIL 17, 2014. �DUKE
2. CONSTRUCTION OF ACCESS ROAD ALONG TOE OF SECONDARY ASH BASIN PARALLEL TO DAN RIVER IS INCLUDED IN DR -131 SCOPE OF WORK. IT IS EXPECTED THAT PROJECT DR -131 WILL BE CONSTRUCTED BEFORE THIS (DR -134) PROJECT. %%% C 4 c1 °�°� DWG TYPE: DWG DFTR : RFK
REV DATE JOB NO. PROJECT TYPE DES DFTR I CHKD I ENGR I APPD
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® TITLE
Environment & RAILROAD BRANCH CREEK BANK STABILIZATION
Infrastructure DUKE ENERGY ISSUE NO. DR -134
2801 YORKMONT ROADameC DAN RIVER STEAM STATION
SUITE 100
CHARLOTTE, NC 28208
TEfoster
L [phone] BANK ARMORING DESIGN PLAN
FAX: [phone] wheeler
LICENSURE:
NC ENG: F-1253 FOR
N C GEOLOGY. C-247
DRAFT FOR REVIEW
NOTES: SEAL SCALE: AS SHOWN DES: RFK
1. SURVEY DATA SHOWN ON THIS SHEET IS FROM A DRAWING TITLED "AERIAL TOPOGRAPHIC SURVEY - DAN RIVER PLANT", PREPARED BY WSP, CARY NC. PHOTOGRAPHY DATE: APRIL 17, 2014. %%""",, if,
� DUKE
2. CONSTRUCTION OF ACCESS ROAD ALONG TOE OF SECONDARY ASH BASIN PARALLEL TO DAN RIVER IS INCLUDED IN DR -131 SCOPE OF WORK. IT IS EXPECTED THAT PROJECT DR -131 WILL BE CONSTRUCTED BEFORE THIS (DR -134) PROJECT. `,�� � CA , w DWG TYPE: DWG DFTR : RFK
3. FOR PURPOSES OF DR -134 DESIGN, IT IS ASSUMED THAT DR -131 SCOPE OF WORK IS IN PLACE.
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Q i DATE: 04/17/2017 ENGR: JMB
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INCHES 1 2 3 TENTHS 10 20 30 4 5 6 7 8 9 10
1 1 1
Plotted By: Bell, Josh Sheet Set: DAN RIVER BANK ARMORING DESIGN Layout:.005 ROAD DESIGN PLAN September 28, 2017 08: 22: 400m Q:\Duke\DanRiver\7810150418—Dan River On—Call\Plansheets\DR-0134 BankArmoringDesign\.005 BANK ARMORING DESIGN PLAN.dwg
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Plotted By: Bell, Josh Sheet Set: DAN RIVER BANK ARMORING DESIGN Layout:.006 EROSION CONTROL September 28, 2017 08:30: 00am Q:\Duke\DanRiver\7810150418—Don River On—Call\Plansheets\DR-0134 BankArmoringDesign\.006 EROSION CONTROL.dwg

2
TYPICAL EXISTING SLOPE CONDITION
NOT TO SCALE
12" DIAMETER FILTREXX® CHECK DAM
TWO (2) 2" X 2" X 36" WOODE
STAKES PLACED 5'0.(
MAX WATER LEVEL
4" MINIMUM FREEBOARD
M
5
CONSTRUCTION NOTES FOR SLOPE REPAIR:
1. WIDTH OF REPAIR AREA TO BE FIELD DETERMINED AND STAKED BY
ENGINEER PRIOR TO CONSTRUCTION.
2. CUT TREES LEAVING STUMPS NO HIGHER THAN 6" ABOVE EXISTING
GROUND. PLACE GEOTEXTILE ON EXISTING GROUND AFTER CLEARING
ACTIVITY. NO CUT OR FILL IS REQUIRED.
3. NONWOVEN GEOTEXTILE SHALL CONSIST OF NEEDLE PUNCHED
POLYPROPYLENE YARNS AND BE RESISTANT TO BIOLOGICAL
DEGRADATION AND NATURALLY OCCURRING CHEMICALS, ALKALI, AND
ACIDS. NONWOVEN GEOTEXTILE SHALL MEET THE FOLLOWING MINIMUM
REQUIREMENTS:
PHYSICAL PROPERTY (TEST METHOD) TEST VALUE
GRAB TENSILE STRENGTH (ASTM D4632) 205 LBS
GRAB TENSILE ELONGATION (ASTM D4632) 50%
TRAPEZOIDAL TEAR STRENGTH (ASTM D4533) 80 LBS
UV RESISTANCE (500 HOURS) (ASTM D4355) 70% RETENTION
APPARENT OPENING SIZE (ASTM D4751) 0.18 MM
4. GEOTEXTILE SHALL RUN HORIZONTALLY (PARALLEL TO SHORELINE) AND
BE PLACED FROM BOTTOM OF EROSION AREA TO TOP SOCK THAT THE
UPPER SECTIONS OVERLAP OVER TOP OF THE LONGER SECTIONS.
5. DROP DISTANCE FOR RIPRAP SHOULD BE LIMITED TO NO MORE THAN 3 FT.
TO AVOID PUNCTURING THE GEOTEXTILE THROUGH THE BEDDING STONE.
6. MINIMUM RIPRAP THICKNESS MEASURED PERPENDICULAR TO EXISTING
SLOPE SHALL BE 18".
STAE
DISCHARGE AREA
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I
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DNR C901.XXX.007 IRFV. 0
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007
12" DIAMETER FILTREXX® SOXXTM
DEN STAKES
BEDDING STONE AND RIP RAP INSTALLATION
NOT TO SCALE
E
STREAM
DISCHARGE HOSES
DIVERSION PUMPS
TWO (2) 2" X 2" X 36" WOODEN STAKES -= _ _ 12" DIAMETER
P
INTAKE
PLACED 10' O.C. -- -= FILTREXX® SOXXTM
P DEWATERING PUMP
HOSE
_
MAX WATER LEVEL
A
A
4" MINIMUM FREEBOARD
FLOW
` FLOW
SINGLE INSTALLATION SECTION
INTAKE
HOSE
-----------------------
=---------- ---
12" DIAMETER
COFFER DAM
LEAN WATER
------------------------------- --
----------------------------- --
_------------------------
FILTREXX® SOXXTM
GENERAL
NOTES:
CROSSING
DISCHARGE
EXTENTS
1.
COMPOST SOCKS SHALL BE INSTALLED AS NEEDED BASED ON FIELD CONDITIONS.
VELOCITY
2.
ADJOINING SECTIONS OF THE SILT SOXX SHALL BE OVERLAPPED A MINIMUM 18 INCHES
DISSIPATOR MADE
AND STAKED AT THE OVERLAP.
OF RIPRAP OR
WORK AREA
SANDBAGS
'_N:
- THREE (3) 2" X 2" X 36" WOODEN STAKES
PLACED 10' O.C.
INSPECTION AND MAINTENANCE NOTES:
PYRAMID INSTALLATION SECTION
1.
ALL EROSION AND SEDIMENTATION CONTROL DEVICES AND PLANTED AREAS
F
SHALL BE INSPECTED EVERY SEVEN (7) CALENDAR DAYS AND AFTER EACH
RAINFALL OCCURRENCE THAT EXCEEDS ONE-HALF (1/2) INCH WITHIN A
24-HOUR PERIOD. DAMAGED OR INEFFECTIVE DEVICES SHALL BE REPAIRED OR
REPLACED, AS NECESSARY, AS SOON AS PRACTICAL.
2.
REMOVE ACCUMULATED SEDIMENT WHEN IT REACHES 1/3 THE HEIGHT OF THE
DEVICE.
3.
REMOVED SEDIMENT SHALL BE PLACED IN STOCKPILE STORAGE AREAS OR
SPREAD THINLY ACROSS DISTURBED AREA. STABILIZE THE REMOVED
SEDIMENT AFTER IT IS RELOCATED.
4.
REMOVE TEMPORARY E&SC MEASURES UPON STABILIZATION OF THE
TRIBUTARY DRAINAGE AREA. REMOVE ALL CONSTRUCTION MATERIAL AND
SEDIMENT, AND DISPOSE OF THEM PROPERLY. COMPOST SOCKS MAY BE
ABANDONED BY CUTTING THE SOCK MATERIAL AND SPREADING THE COMPOST
IN-PLACE. GRADE THE DISTURBED AREA TO DRAIN AND STABILIZE
ACCORDINGLY. 3
COMPOST FILTER SOCK
007
NOT TO SCALE
REV
DATE JOB NO. PROJECT TYPE
TENTHS 10 20
30 4
5
6
INCHES 1 2 3
Plotted
By: Bell, Josh
Sheet Set: DAN RIVER BANK ARMORING DESIGN Layout: .007 DETAILS September 28,
2017 08: 31: 16am 0: \Duke\DanRiver\7810150418_Dan
River On— Call \Plansheets\DR-0134 BankArmoringDesign\.007
DETAILS.dwg
DESCRIPTION
THE WORK SHOULD CONSIST OF INSTALLING A TEMPORARY PUMP AROUND AND SUPPORTING MEASURES
TO DIVERT FLOW AROUND IN -STREAM CONSTRUCTION SITES.
IMPLEMENTATION SEQUENCE
SEDIMENT CONTROL MEASURES, PUMP -AROUND PRACTICES, AND ASSOCIATED CHANNEL AND BANK
CONSTRUCTION
SHOULD BE COMPLETED IN THE FOLLOWING SEQUENCE:
1. CONSTRUCTION SHOULD NOT BEGIN UNTIL ALL SEDIMENT AND EROSION CONTROL MEASURES
HAVE BEEN INSTALLED. THE CONTRACTOR SHOULD STAY WITHIN THE LIMITS OF THE
DISTURBANCE AS SHOWN ON THE PLANS AND MINIMIZE DISTURBANCE WITHIN THE WORK AREA
WHENEVER POSSIBLE.
2 UPON INSTALLATION OF ALL SEDIMENT CONTROL MEASURES, THE CONTRACTOR SHOULD BEGIN
WORK AT THE UPSTREAM SECTION AND PROCEED DOWNSTREAM BEGINNING WITH THE
ESTABLISHMENT OF STABILIZED CONSTRUCTION ENTRANCES. IN SOME CASES, WORK MAY
BEGIN DOWNSTREAM IF APPROPRIATE. WORK SHOULD NOT BE CONDUCTED IN THE CHANNEL
DURING RAIN EVENTS.
3 SANDBAG DIKES SHOULD BE SITUATED AT THE UPSTREAM AND DOWNSTREAM ENDS OF THE
WORK AREA AS SHOWN ON THE PLANS, AND STREAM FLOW SHOULD BE PUMPED AROUND THE
WORK AREA. THE PUMP SHOULD DISCHARGE ONTO A STABLE VELOCITY DISSIPATER MADE OF
RIPRAP OR SANDBAGS.
4 WATER FROM THE WORK AREA SHOULD BE PUMPED TO A SEDIMENT FILTERING MEASURE SUCH
AS A DEWATERING BASIN, SILT BAG, OR OTHER APPROVED SOURCE. THE MEASURE SHOULD BE
LOCATED SUCH THAT THE WATER DRAINS BACK INTO THE CHANNEL BELOW THE DOWNSTREAM
SANDBAG DIKE.
5 THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING ACCESS TO AND MAINTAINING ALL EROSION
AND SEDIMENT CONTROL DEVICES UNTIL THE SEDIMENT CONTROL INSPECTOR APPROVES THEIR
REMOVAL.
6. AFTER CONSTRUCTION, ALL DISTURBED AREAS SHOULD BE REGRADED AND REVEGETATED AS
PER THE PLANTING PLAN.
EXPOSED WEATHERED OR V�V
HARD ROCK (TYPICAL)
PLAN VIEW
DEWATERING DEVICE / SILT BAG
(SEE DETAILS)
SECTION A -A
IMPERVIOUS SHEETING
WORK AREA 6 FEET
Ix,nY//� 1��//nvrin invrr��/�
CROSS SECTION OF SANDBAG DIKE
IMPERVIOUS SHEETING
WORK AREA 6 FEET
0
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CROSS SECTION OF STONE DIKE
4 \ PUMP AROUND DIVERSION DETAIL
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NOT TO SCALE
Environment & IT
TITLERAILROAD BRANCH CREEK BANK STABILIZATION DUKE
Infrastructure ENERGY ISSUE NO. DR -134
41, DAN RIVER STEAM STATION
2801 YORKMONT ROAD amec
SUITE 100
CHARLOTTE, NC 28208 foster
TEL: [phone] DETAILS
FAX: [phone] wheeler
LICENSURE:
NC ENG: F-1253 FOR
NC GEOLOGY: C-247
DRAFT FOR REVIEW
SEAL SCALE: AS SHOWN DES: RFK
DUKE% --\A CAA? P,,s DWG TYPE: DWG DFTR : RFK
SSIO
'ENERGY JOB NO: 7810150418 CHKD: JMB
Q Lr= DATE: 04/17/2017 ENGR: JMB
032667 a22i 1 FILENAME: .007 DETAILS.dwg APPD: JMB
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PUMPS SHOULD
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DISCHARGE
EXTENTS
ONTO A STABLE
VELOCITY
DISSIPATOR MADE
OF RIPRAP OR
WORK AREA
SANDBAGS
SECTION A -A
IMPERVIOUS SHEETING
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Ix,nY//� 1��//nvrin invrr��/�
CROSS SECTION OF SANDBAG DIKE
IMPERVIOUS SHEETING
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0
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CROSS SECTION OF STONE DIKE
4 \ PUMP AROUND DIVERSION DETAIL
K
NOT TO SCALE
Environment & IT
TITLERAILROAD BRANCH CREEK BANK STABILIZATION DUKE
Infrastructure ENERGY ISSUE NO. DR -134
41, DAN RIVER STEAM STATION
2801 YORKMONT ROAD amec
SUITE 100
CHARLOTTE, NC 28208 foster
TEL: [phone] DETAILS
FAX: [phone] wheeler
LICENSURE:
NC ENG: F-1253 FOR
NC GEOLOGY: C-247
DRAFT FOR REVIEW
SEAL SCALE: AS SHOWN DES: RFK
DUKE% --\A CAA? P,,s DWG TYPE: DWG DFTR : RFK
SSIO
'ENERGY JOB NO: 7810150418 CHKD: JMB
Q Lr= DATE: 04/17/2017 ENGR: JMB
032667 a22i 1 FILENAME: .007 DETAILS.dwg APPD: JMB
vo,. �..: v DWG SIZE DRAWING NO. REVISION
•NGFN��• ���`
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