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BLACKBIRD DAM REMOVAL & STREAM MITIGATION SITE
PHASE 1: DAM BREACH PLANS
JOHN K SWAMP: HUC 030202011303
NOVEMBER 2015
I LOCATION: JOHNSTON COUNTY, NC
Resource
Environmental
Solutions
RESOURCE ENVIRONMENTAL SOLUTIONS, LLC
DRAWING LIST TABLE
DRAWING NO.
DRAWING TITLE
1
COVER
E1
EXISTING CONDITIONS
C1
DAM BREACH PLAN
EC1
EROSION & SEDIMENT CONTROL PLAN
D1
DETAILS
302 JEFFERSON STREET
RALEIGH, NC 27605
ShWK
WDICKSON
communitv infrastructure consultants
NOTICE TO CONTRACTOR
PRIOR TO CONSTRUCTION, DIGGING, OR EXCAVATION THE
CONTRACTOR IS RESPONSIBLE FOR LOCATING ALL UNDERGROUND
UTILITIES (PUBLIC OR PRIVATE) THAT MAY EXIST AND CROSS THROUGH
THE AREA(S) OF CONSTRUCTION, WHETHER INDICATED ON THE PLANS
OR NOT. CALL "811" A MINIMUM OF 72 HOURS PRIOR TO DIGGING OR
EXCAVATING. REPAIRS TO ANY UTILITY DAMAGED RESULTING FROM
CONSTRUCTION ACTIVITIES SHALL BE THE RESPONSIBILITY OF THE
CONTRACTOR.
REV RECORD: REV RECORD:
BY DATE DESCRIPTION BY DATE DESCRIPTION
Know what's below.
Call before you dig
PROFESSIONAL SEAL
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PYRIGHT n_ W _ DICKSON R CO_ INC_ AI_I_ RIGHTS RFSFRVFD_ RFPRODIICTION OR HSF OF THF CONTFNTS OF THIS DOCIIMFNT- ADDITIONS OR DFI_FTIONS TO THIS DnCIJMFNT_ IN WHO[_ F OR IN PART_ WITHOLJT WRITTFN CONSFNT OF W _ DICKSON R CO_ INC__ IS PROHIRITFD_ nNl_Y COPIFS FROM THF nRIGINAI. OF THIS DOCIIMFNT_ MARKFD WITH AN ORIGINAL SIGNATHRF AND SFAI_ SHAI_I_ RF CONSIDFRFD TO RF VALID_ TRtJF COPIF
FILE NAME: O:\Projects\Resource Environmental Sol utions\201 5009500RA - TO #3, Blackbird Dam Removal and Stream Mitigation Site\CADD\Plan Set\2015009500RA SHT EX COND.dwg - November 23, 2016 - Ben Carroll
vw
DICKSON
community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
NC. LICENSE NO. F-0374
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PROJ. DATE: NOV 2015
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COPYRIGHT ©, W.K. DICKSON & GO., INC. ALL RIGHTS RESERVED. REPRODUCTION OR USE OF THE CONTENTS OF THIS DOCUMENT; ADDITIONS OR DELETIONS TO THIS DOCUMENT, IN WHOLE OR IN PART, WITHOUT WRITTEN CONSENT OF W.K. DICKSON & CO., INC., IS PROHIBITED. ONLY COPIES FROM THE ORIGINAL OF THIS DOCUMENT, MARKED WITH AN ORIGINAL SIGNATURE AND SEAL SHALL BE CONSIDERED TO BE VALID, TRUE COPIES.
FILE NAME: O:\Projects\Resource Environmental Sol utions\201 5009500RA - TO #3, Blackbird Dam Removal and Stream Mitigation Site\CADD\Plan Set\2015009500RA SHT DAM BREACH.dwg - November 23, 2016 - Ben Carroll
vw
DICKSON
community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(f) 919.782.9672
CHARLOTTE PARKER LOCAPO HEIRS
www.wkdickson.com
NC. LICENSE NO. F-0374
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CONSTRUCTION SEQUENCE NOTES FOR BREACH:
I
1. EXCAVATE THE TEMPORARY PONDING AREA FOR FILTER BERM AND CONSTRUCT PROPOSED RIP -RAP FILTER
BERM AND DISSIPATER PAD. FILTER BERM MUST TIE TO EXISTING GROUND AT THE TOP OF BERM. UTILIZE
TIMBER MATS AND/ OR TEMPORARY FILL TO COMPLETE CONSTRUCTION WHERE NECESSARY.
2. INSTALL ALL EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON SHEET EC1. REMOVE ALL MARKED
TREES WITHIN THE LIMITS OF DISTURBANCE UNLESS OTHERWISE DIRECTED BY ENGINEER. DISPOSE OF ALL
MATERIAL OFFSITE AND IN A SAFE AND LEGAL MANNER. CONCRETE WALLS TO REMAIN WHERE POSSIBLE. DO
NOT REMOVE ANY STRUCTURES UNLESS OTHERWISE DIRECTED BY THE ENGINEER.
3. COMPLETE PROPOSED GRADING AND INSTALL TEMPORARY SUMP UPSTREAM OF FILTER BERM FOR ADDITIONAL
DEWATERING AS NECESSARY.
LEGEND
APPROXIMATE BREACHED AREA
LOD LIMITS OF DISTURBANCE
FILTER BERM
1.
DISSIPATER PAD
TREES TO BE REMOVED
COPYRIGHT ©, W.K. DICKSON & GO., INC. ALL RIGHTS RESERVED. REPRODUCTION OR USE OF THE CONTENTS OF THIS DOCUMENT; ADDITIONS OR DELETIONS TO THIS DOCUMENT, IN WHOLE OR IN PART, WITHOUT WRITTEN CONSENT OF W.K. DICKSON & CO., INC., IS PROHIBITED. ONLY COPIES FROM THE ORIGINAL OF THIS DOCUMENT, MARKED WITH AN ORIGINAL SIGNATURE AND SEAL SHALL BE CONSIDERED TO BE VALID, TRUE COPIES.
FILE NAME: O:\Projects\Resource Environmental Sol utions\201 5009500RA - TO #3, Blackbird Dam Removal and Stream Mitigation Site\CADD\Plan Set\2015009500RA SHT DAM BREACH.dwg - November 23, 2016 - Ben Carroll
vw
DICKSON
community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
NC. LICENSE NO. F-0374
FULL SCALE: 1 "= 40
0 40
80
2" = FULL SCALE
1" = HALF SCALE
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PROJ. DATE: NOV 2015
Q.C.: TM
Q.C. DATE: 11/2016
DRAWING NUMBER:
PROJ. NO.:
20150095.00. RA

CHARLOTTE PARKER LOCAPO HEIRS
DB 1255, PG 479
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STAGING/STOCKPILE
AREA
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EROSION CONTROL:
POND
II
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1
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LIMIT OF DISTURBANCE,
N/F JAMES GARLAND SMITh
DB 1206, PG 706
1. REVIEW CONSTRUCTION SEQUENCE FOR ADDITIONAL EROSION CONTROL MEASURES. ALL PERMANENT AND TEMPORARY EROSION CONTROL STRUCTURES (I.E ROCK
CHECK DAMS, SILT FENCE AND TEMPORARY CONSTRUCTION ENTRANCES, SEE SHEET Cl) SHALL BE INSTALLED PRIOR TO THE START OF CONSTRUCTION OF THE
LAND -DISTURBING ACTIVITY.
2. CONSTRUCTION ACCESS AREAS SHOWN ARE TO GUIDE CONTRACTOR DURING CONSTRUCTION. CONTRACTOR SHALL COORDINATE WITH ENGINEER IF ALTERNATIVE
CONSTRUCTION ACCESS ROUTES WILL IMPROVE EFFICIENCY OF CONSTRUCTION.
3. ALL AREAS DISTURBED BY THE CONTRACTOR SHALL BE SEEDED PER THE SPECIFICATIONS IN THE SEEDING SCHEDULE SHOWN ON THIS SHEET.
4. MULCH: APPLY 2 TONS/ACRE GRAIN STRAW AND ANCHOR STRAW ON ALL OTHER DISTURBED AREAS.
5. EROSION CONTROL:
A. INSTALL PERMANENT VEGETATIVE COVER AND THE LONG-TERM EROSION PROTECTION MEASURES OR STRUCTURES AS DIRECTED BY ENGINEER UPON
CONSTRUCTION COMPLETION. APPROPRIATE EROSION CONTROL MEASURES MUST BE PLACED BETWEEN THE DISTURBED AREA AND AFFECTED WATERWAY AND
MAINTAINED UNTIL PERMANENTLY VEGETATED.
B. PROVIDE FOR HANDLING THE INCREASED RUNOFF CAUSED BY CHANGED SOIL AND SURFACE CONDITIONS. USE EFFECTIVE MEANS TO CONSERVE EXISTING
ON-SITE SOIL CONDITIONS.
C. DURING CONSTRUCTION ACTIVITIES, ALL DISTURBED AREAS SHALL BE STABILIZED AT THE END OF EACH WORKING DAY. USE TEMPORARY PLANT COVER,
MULCHING, AND/OR STRUCTURES TO CONTROL RUNOFF AND PROTECT AREAS SUBJECT TO EROSION DURING CONSTRUCTION.
D. ALL SEDIMENT AND EROSION CONTROLS ARE TO BE INSPECTED AT LEAST ONCE EVERY SEVEN CALENDAR DAYS AND AFTER ANY STORM EVENT OF GREATER
THAN 0.5 INCHES OF PRECIPITATION DURING ANY 24-HOUR PERIOD. MAINTENANCE OF SEDIMENT TRAPPING STRUCTURES SHALL BE PERFORMED AS NECESSARY
PER THESE INSPECTIONS. SILT FENCING SHALL BE INSTALLED AS SHOWN ON PLANS.
E. STABILIZATION MEASURES SHALL BE INITIATED AT THE END OF EACH DAY IN PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITIES HAVE TEMPORARILY OR
PERMANENTLY CEASED. GROUNDCOVER MUST BE ESTABLISHED PER THE "GROUND COVER SCHEDULE" SHOWN ON THIS SHEET IN AREAS WHERE
CONSTRUCTION HAS TEMPORARILY CEASED. ALL AREAS WHERE FINAL GRADE HAS BEEN ESTABLISHED SHALL BE PERMANENTLY STABILIZED WITHIN 2
CALENDAR DAYS.
F. CONTRACTOR MUST TAKE THE NECESSARY ACTION TO MINIMIZE THE TRACKING OF MUD ONTO THE PAVED ROADWAY FROM CONSTRUCTION AREAS. DAILY
REMOVAL OF MUD/SOIL MAY BE REQUIRED.
G. ALL EROSION CONTROL DEVICES SHALL BE PROPERLY MAINTAINED DURING ALL PHASES OF CONSTRUCTION UNTIL THE COMPLETION OF ALL CONSTRUCTION
ACTIVITIES AND ALL DISTURBED AREAS HAVE BEEN STABILIZED. ADDITIONAL CONTROL DEVICES MAY BE REQUIRED DURING CONSTRUCTION IN ORDER TO
CONTROL EROSION AND/OR OFF SITE SEDIMENTATION. CONTRACTOR SHALL REMOVE ALL TEMPORARY CONTROL DEVICES ONCE CONSTRUCTION IS COMPLETE
AND THE SITE IS STABILIZED.
H. SILT FENCING TO BE INSTALLED AROUND INDICATED STOCKPILE AREAS TO PREVENT LOSS OF SEDIMENT. STOCKPILE AREAS MAY BE RELOCATED UPON
APPROVAL FROM ENGINEER.
I. ASPHALT TACKIFIER SHALL NOT BE USED.
J. ALL NECESSARY MEASURES MUST BE TAKEN TO PREVENT OIL, TAR, TRASH, AND OTHER POLLUTANTS FROM ENTERING THE ADJACENT OFF SITE AREAS.
K. WETLANDS/STREAMS CANNOT BE ENCROACHED UNDER ANY CIRCUMSTANCES IF NOT APPROVED AS DESIGNATED IMPACT AREAS.
L. ACTIVITIES MUST AVOID DISTURBANCE OF WOODY RIPARIAN VEGETATION WITHIN THE PROJECT AREA TO THE GREATEST EXTENT PRACTICABLE. REMOVAL OF
VEGETATION MUST BE LIMITED TO ONLY THAT NECESSARY FOR COMPLETION OF THE PROJECT.
M. NO ONSITE BURIAL OR BURNING OF VEGETATION OR CONSTRUCTION DEBRIS WILL BE PERMITTED. VEGETATIVE DEBRIS SHALL BE STOCKPILED AND DISPOSED OF
ONSITE PER DIRECTION OF ENGINEER.
N. ANY GRADING BEYOND THE CONSTRUCTION LIMITS SHOWN ON THE PLAN IS A VIOLATION OF THE NORTH CAROLINA EROSION CONTROL ORDINANCE, AND IS
SUBJECT TO A FINE.
O. PLEASE REFERENCE PLAN SHEET DETAILS AND NCDENR STANDARDS FOR CONSTRUCTION OF EROSION CONTROL MEASURES.
P. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING ALL EROSION CONTROL MEASURES RELATED TO THE CONSTRUCTION SITE.
Q. THE LOCATIONS OF SOME EROSION CONTROL MEASURES MAY HAVE TO BE ALTERED FROM THOSE SHOWN ON THE PLANS IF DRAINAGE PATTERNS CHANGE
DURING CONSTRUCTION.
R. IF IT IS DETERMINED DURING THE COURSE OF CONSTRUCTION THAT SIGNIFICANT SEDIMENT IS LEAVING THE SITE (DESPITE THE PROPER IMPLEMENTATION AND
MAINTENANCE OF EROSION CONTROL MEASURES), THE PERSON RESPONSIBLE FOR THE LAND DISTURBING ACTIVITY IS OBLIGATED TO TAKE ADDITIONAL
PROTECTIVE ACTION.
IGHT n_ W _ DICKSON R CC)- INC_ ALL RIGHTS RESERVED. REPRnDIJCTinN nR I1SE nF THE
IS D(')CIJME
TEMPORARY SEEDING SCHEDULE - FALL
SEEDING MIXTURE
SPECIES RATE (LB/ACRE)
RYE (GRAIN) 120
SEEDING DATES
MOUNTAINS—AUG. 15 - DEC. 15
COASTAL PLAIN AND PIEDMONT—AUG. 15 - DEC. 30
SOIL AMENDMENTS
FOLLOW SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE
AND 1,000 LB/ACRE 10-10-10 FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR A
MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A
MULCH ANCHORING TOOL.
MAINTENANCE
REPAIR AND REFERTILIZE DAMAGED AREAS IMMEDIATELY. TOPDRESS WITH 50
LB/ACRE OF NITROGEN IN MARCH. IF IT IS NECESSARY TO EXTEND TEMPORARY
COVER BEYOND JUNE 15, OVERSEED WITH 50 LB/ACRE KOBE (PIEDMONT AND
COASTAL PLAIN) OR KOREAN (MOUNTAINS) LESPEDEZA IN LATE FEBRUARY OR
EARLY MARCH.
HENRIETTA LEE HINES
DB 1324, PG 649 PB 73,
PG 250
TEMPORARY SEEDING - LATE WINTER/EARLY SPRING
SEEDING MIXTURE
SPECIES RATE (LB/ACRE)
RYE (GRAIN) 120
ANNUAL LESPEDEZA (KOBE IN PIEDMONT 50
AND COASTAL PLAIN, KOREAN IN MOUNTAINS)
OMIT ANNUAL LESPEDEZA WHEN DURATION OF TEMPORARY COVER IS NOT TO
EXTEND BEYOND JUNE.
SEEDING DATES
MOUNTAINS - ABOVE 2500 FT: FEB. 15 -MAY 15
BELOW 2500 FT: FEB. 1 -MAY 1
PIEDMONT - JAN. 1 -MAY 1
COASTAL PLAIN - DECA-APR. 15
SOIL AMENDMENTS
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND
AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING OR A
MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A
MULCH ANCHORING TOOL.
MAINTENANCE
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, REFERTILIZE AND MULCH
IM- MEDIATELY FOLLOWING EROSION OR OTHER DAMAGE.
GROUND COVER SCHEDULE
SITE AREA DESCRIPTION
STABILIZATION TIME FRAME
STABILIZATION TIME FRAME EXCEPTIONS
PERIMETER DIKES, SWALES, DITCHES AND
7 DAYS
NONE
SLOPES
Raleigh, NC 27607
HIGH QUALITY WATER (HQW) ZONES
7 DAYS
NONE
(fl 919.782.9672
IF SLOPES ARE 10' OR LESS IN LENGTH AND ARE NOT
SLOPES STEEPER THAN 3:1
7 DAYS
STEEPER THAN 2:1,14 DAYS ARE ALLOWED
SLOPES 3:1 OR FLATTER
14 DAYS
7 DAYS FOR SLOPES GREATER THAN 50 FEET IN LENGTH
ALL OTHER AREAS WITH SLOPES FLATTER
14 DAYS
NONE (EXCEPT FOR PERIMETERS AND HWQ ZONES)
THAN 4:1
I`
u.i
THIS DOCUMENT. IN WH
FILE NAME: O:\Projects\Resource Environmental Solutions\2015009500RA - TO #3, Blackbird Dam Removal and Stream Mitigation Site\CADD\Plan Set\2015009500RA SHT DAM BREACH.dwg - November 23, 2016 - Ben Carroll
;i9
INC__ IS PROHIRITED_ (SNI
THE
M
TEMPORARY SEEDING SCHEDULE - SUMMER
SEEDING MIXTURE
SPECIES RATE (LB/ACRE)
GERMAN MILLET 40
IN THE PIEDMONT AND MOUNTAINS, A SMALL -STEMMED SUDANGRASS MAY BE
SUBSTITUTED AT A RATE OF 50 LB/ACRE.
SEEDING DATES
MOUNTAINS - MAY 15 -AUG. 15 PIEDMONT -
MAY 1 -AUG. 15 COASTAL PLAIN - APR.
15 -AUG. 15
SOIL AMENDMENTS
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND
AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT,
NETTING OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY
STRAIGHT CAN BE USED AS AN ANCHORING TOOL.
MAINTENANCE
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND
MULCH IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE.
EROSION CONTROL LEGEND
LOD LIMITS OF DISTURBANCE
SILT FENCE
STAGING/STOCKPILE AREA
�• ' EROSION C•• - •(COIR
TEMPORARY GRAVEL CONSTR. ENTRANCE/EXIT
IGNATIIRE AND SEAL SHALL RE
FILTER BERM
DISSIPATER PAD
RE VALID_ TRUE
vw
DICKSON
community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(fl 919.782.9672
www.wkdickson.com
NC. LICENSE NO. F-0374
FULL SCALE: 1 "=40
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80
2" FULL SCALE
1 " = HALF SCALE
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PROJ. DATE: NOV 2015
Q.C. DATE: 11/2016
DRAWING NUMBER:
EC1
PROJ. NO.:
20150095.00. RA

WHEN AND WHERE TO USE IT
SILT FENCE IS APPLICABLE IN AREAS:
WHERE THE MAXIMUM SHEET OR OVERLAND FLOW PATH LENGTH TO THE FENCE IS 100 -FEET.
WHERE THE MAXIMUM SLOPE STEEPNESS (NORMAL [PERPENDICULAR] TO FENCE LINE) IS
2H:1 V.
THAT DO NOT RECEIVE CONCENTRATED FLOWS GREATER THAN 0.5 CFS.
DO NOT PLACE SILT FENCE ACROSS CHANNELS OR USE IT AS A VELOCITY CONTROL BMP.
CONSTRUCTION SPECIFICATIONS:
1. USE A SYNTHETIC FILTER FABRIC OF AT LEAST 95% BY WEIGHT OF POLYOLEFINS OR
POLYESTER, WHICH IS CERTIFIED BY THE MANUFACTURER OR SUPPLIER AS CONFORMING
TO THE REQUIREMENTS IN ASTM D 6461. SYNTHETIC FILTER FABRIC SHOULD CONTAIN
ULTRAVIOLET RAY INHIBITORS AND STABILIZERS TO PROVIDE A MINIMUM OF 6 MONTHS
OF EXPECTED USABLE CONSTRUCTION LIFE AT A TEMPERATURE RANGE OF 0' TO 120' F.
2. ENSURE THAT POSTS FOR SEDIMENT FENCES ARE 1.33 LB/LINEAR FT STEEL WITH A
MINIMUM LENGTH OF 5 FEET. MAKE SURE THAT STEEL POSTS HAVE PROJECTIONS TO
FACILITATE FASTENING THE FABRIC.
CONSTRUCTION:
1. CONSTRUCT THE SEDIMENT BARRIER OF EXTRA STRENGTH SYNTHETIC FILTER FABRICS.
2. ENSURE THAT THE HEIGHT OF THE SEDIMENT FENCE DOES NOT EXCEED 24 INCHES
ABOVE THE GROUND SURFACE. (HIGHER FENCES MAY IMPOUND VOLUMES OF WATER
SUFFICIENT TO CAUSE FAILURE OF THE STRUCTURE.)
3. CONSTRUCT THE FILTER FABRIC FROM A CONTINUOUS ROLL CUT TO THE LENGTH OF THE
BARRIER TO AVOID JOINTS. WHEN JOINTS ARE NECESSARY, SECURELY FASTEN THE
FILTER CLOTH ONLY AT A SUPPORT POST WITH 4 FEET MINIMUM OVERLAP TO THE NEXT
POST.
4. EXTRA STRENGTH FILTER FABRIC WITH 6 FEET POST SPACING DOES NOT REQUIRE WIRE
MESH SUPPORT FENCE. SECURELY FASTEN THE FILTER FABRIC DIRECTLY TO POSTS.
WIRE OR PLASTIC ZIP TIES SHOULD HAVE MINIMUM 50 POUND TENSILE STRENGTH.
5. EXCAVATE A TRENCH APPROXIMATELY 4 INCHES WIDE AND 8 INCHES DEEP ALONG THE
PROPOSED LINE OF POSTS AND UPSLOPE FROM THE BARRIER.
6. PLACE 12 INCHES OF THE 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.
MAINTENANCE:
INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY
REQUIRED REPAIRS IMMEDIATELY.
SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, TEAR, DECOMPOSE OR BECOME
INEFFECTIVE, REPLACE IT PROMPTLY.
REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR
THE NEXT RAIN AND TO REDUCE PRESSURE ON THE FENCE. TAKE CARE TO AVOID
UNDERMINING THE FENCE DURING CLEANOUT.
REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA
TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY
STABILIZED.
LOCATION
HEIGHT
A
2.5 FT
B
3.0 FT
C
3.0 FT
LOCATION
LENGTH
A -B
10 FT
B -C
30 FT
TOTAL
80 FT
#5 WASHED STONE
5'
SEDIMENT STORAGE ZONE
6"
STORMWATER STORAGE ZONE MIN
2:1
1'
MAX. SEDIMENT DEPTH
(CLEAN OUT POINT)
SECTION VIEW
GENERAL NOTES:
DIMENSIONS SHOWN ARE THE MINIMUM ACCEPTED UNLESS OTHERWISE NOTED.
1.25 LB./LINEAR FT. STEEL
EXTRA STRENGTH
FILTER FABRIC
BACKFILL TRENCH WITH
COMPACTED EARTH
FILTER FABRIC
COMPACTED
EARTH
RUNOFF
8Llr
FILTER
FABRIC
4"
USE EITHER FLAT -BOTTOM
OR V -BOTTOM TRENCH
SHOWN BELOW
SILT FENCE INSTALLATION
HEAVY DUTY PLASTIC TIE
FOR STEEL POSTS
BURY FABRIC
FILTER FABRIC
COMPACTED
18" TO 24" EARTH 18" TO 24"
RUNOFF
i - i I
8" =1 I I -
24" MIN -
FLAT -BOTTOM TRENCH DETAIL
1.5' THICK GLASS I RIP RA=
DISSIPATER PAD
#5 WASHED STONE
6" MIN. THI(;'
ExIstin
o{{0 9 Koko \ \ \
\ A
FLOW
B
PLAN VIEW
--- NOTE
/GROUND
LEVEL
IRFAC1.F
SECTION A -A
NOTE: END OF DIKE AT GROUND LEVEL TO BE
HIGHER THAN THE LOWEST POINT OF FLOW
CHECK. SUFFICIENT SANDBAGS ARE TO BE
PLACED TO PREVENT SCOURING.
SANDBAG BARRIERS SHALL BE CONSTRUCTED OF THREE LAYERS OF
SANDBAGS. THE BOTTOM LAYER SHALL CONSIST OF 3 ROWS OF BAGS, THE
MIDDLE LAYER SHALL CONSIST OF 2 ROWS OF BAGS AND THE TOP LAYER SHALL
CONSIST OF 1 ROW OF BAGS. THE RECOMMENDED DIMENSION OF A FILLED
SANDBAG SHALL BE APPROXIMATELY 0.5 FT X 0.5 FT X 1.5 FT.
SANDBAG IMPERVIOUS DIKE
D 1 NTS
24" MIN
FILTER FABRIC
V -SHAPED TRENCH DETAIL
1 TEMPORARY SILT FENCE
D 1 NTS
•
• • V2•
1
I
fa11 1 1 1 1 1 1 1 1 1 1
APPROX. ELEV. = 2.0' BELOW
/ EXISTING LAKE BOTTOM
iIII I
CLASS I RIP RAP EXCAVATE TO APPROX.
ELEV. = 2.0' BELOW
EXISTING LAKE BOTTOM
2:1
2.5 - 3.0 FT FLOW
1.5' THICK CLASS I
RIP RAP DISSIPATER PAD
FILTER FABRIC
3.0' THICK CLASS I
RIP RAP BASE
2 RIPRAP FILTER BERM
D 1 NTS
PERSPECTIVE VIEW
EXISTING DAM
EMBANKMENT
MIDDLE LAYER
BOTTOM LAYER
ENDS OF BAGS IN ADJACENT
ROWS BUTTED SLIGHTLY
TOGETHER
PURPOSE:
STABILIZED CONSTRUCTION ENTRANCES SHOULD BE USED AT ALL POINTS WHERE TRAFFIC WILL BE
LEAVING A CONSTRUCTION SITE AND MOVING DIRECTLY ONTO A PUBLIC ROAD.
CONSTRUCTION SPECIFICATIONS:
1. CLEAR THE ENTRANCE AND EXIT AREA OF ALL VEGETATION, ROOTS, AND OTHER OBJECTIONABLE
MATERIAL AND PROPERLY GRADE IT.
2. PLACE THE GRAVEL TO THE SPECIFIC GRADE AND DIMENSIONS SHOWN ON THE DETAIL, AND
SMOOTH IT.
3. PROVIDE DRAINAGE TO CARRY WATER TO A SEDIMENT TRAP OR OTHER SUITABLE OUTLET.
4. USE GEOTEXTILE FABRICS BECAUSE THEY IMPROVE STABILITY OF THE FOUNDATION IN LOCATIONS
SUBJECT TO SEEPAGE OR HIGH WATER TABLE.
MAINTENANCE:
MAINTAIN THE GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LEAVING THE
CONSTRUCTION SITE. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH 2 -INCH STONE. AFTER EACH
RAINFALL, INSPECT ANY STRUCTURE USED TO TRAP SEDIMENT AND CLEAN IT OUT AS NECESSARY.
IMMEDIATELY REMOVE ALL OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO PUBLIC
ROADWAYS, OR AIRFIELD PAVEMENTS.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE
NTS
GENERAL NOTES:
1. CONSTRUCT DAM ACCORDING TO NCDENR EROSION
CONTROL MANUAL.
2. ROCK DAM RIPRAP SHALL BE 50/50 MIX OF CLASS I AND
II.
3. PLACE ROCK DAM AS SHOWN ON PLANS. EXTEND CLASS
B RIP RAP ROCK APRON 5 FEET DOWNSTREAM FROM TOE
OF ROCK DAM.
5'-0" MIN.
SPILLWAY
CREST
3:1 -
CLASS I AND
II RIP RAP
1.5' THICK
CLASS B
ROCK APRON
CUTOFF
TRENCH
SECTION B -B
1.5' THICK
CLASS B
ROCK APRON
2:1
1' MIN OF # 5
WASHED STONE
aFLOW
FLOW
5 WASHED
ONE
A
B�
PLAN
W (SPILLWAY)
MIN 2/3 STREAM WIDTH
2' t1 - - - -2' MIN. BELOW
_ LOWEST BANK
LEVEL (MIN)
CLASS I AND
FILTER II RIP RAP SECTION A -A FILTER
FABRIC FABRIC
TEMPORARY ROCK CHECK DAM
NTS
TOP LAYER
EARTH SURFACE
TRENCH 0.25' DEEP ONLY WHEN
PLACED ON EARTH SURFACE
SECTION B -B
NOTES:
1. EXCAVATION SHALL BE PERFORMED ONLY IN DRY AND/OR
ISOLATED SECTIONS OF CHANNEL.
2. IMPERVIOUS DIKES SHOULD BE USED TO ISOLATE WORK AREAS
FROM STREAM FLOW.
3. THE CONTRACTOR SHALL NOT DISTURB MORE AREA THAN CAN
BE STABILIZED IN ONE WORKING DAY. A MAXIMUM OF 200 FEET
MAY BE DISTURBED AT ANY ONE TIME.
4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR DETERMINING
PUMP SIZE SUFFICIENT TO PUMP BASE FLOW.
5. DIKE MUST BE CONSTRUCTED OF NON -ERODIBLE MATERIALS
SUCH AS SANDBAGS.
SEQUENCE OF CONSTRUCTION FOR TYPICAL PUMP AROUND
1. INSTALL STILLING BASIN AND STABILIZED OUTFALL USING CLASS
A RIP RAP AT THE DOWNSTREAM END OF THE DESIGNATED
PROJECT WORKING AREA.
2. THE CONTRACTOR SHALL INSTALL THE PUMP AROUND PUMP AND
THE TEMPORARY PIPING THAT WILL CONVEY THE BASE FLOW
FROM UPSTREAM OF THE WORK AREA TO THE STABILIZED
OUTFALL.
3. INSTALL UPSTREAM IMPERVIOUS DIKE AND BEGIN PUMPING
OPERATIONS FOR STREAM DIVERSION.
4. INSTALL THE DOWNSTREAM IMPERVIOUS DIKE AND DEWATERING
PUMPING APPARATUS IF NEEDED TO DEWATER THE ENTRAPPED
AREA. THE PUMP AND HOSE FOR THIS PURPOSE SHALL BE OF
SUFFICIENT SIZE TO DEWATER THE WORK AREA. THIS WATER
WILL ALSO BE PUMPED TO AN OUTFALL STABILIZED WITH CLASS
A RIP RAP.
5. THE CONTRACTOR SHALL EXCAVATE ANY ACCUMULATED SILT
AND DEWATER BEFORE REMOVAL OF THE IMPERVIOUS DIKE.
WHEN DEWATERING AREA, ALL DIRTY WATER MUST BE PUMPED
THROUGH A SILT BAG. REMOVE IMPERVIOUS DIKES, PUMPS, AND
TEMPORARY FLEXIBLE HOSE/PIPING STARTING WITH THE
DOWNSTREAM DIKE FIRST.
6. ONCE THE WORKING AREA IS COMPLETED, REMOVE ALL RIP RAP
AND IMPERVIOUS DIKES AND STABILIZE DISTURBED AREAS WITH
SEED AND MULCH.
7. ALL WORK IN POND MUST BE COMPLETED BEFORE REMOVING
IMPERVIOUS DIKE.
DE-WATERIN
PUN
IMPERVIOUS
DIKE
SILT BAC
LOCATIOI`
STABI
CLASS A S I ONE
STABILIZED
OUTFALL CLASS
A STONE
EXISTING
GROUND
15' TO 20'
L FILTER FABRIC L g OF CLASS A
STONE
EXISTING
CHANNEL
SILT BAG PROFILE
HOSE
PUMPAROUND
PUMP
US DIKE
ZGE HOSE
LD BE
WORK
DISCHARGE
HOSE
PUMP AROUND & DEWATERING DETAIL
NTS
DICKSON
community
infrastructure consultants
Transportation + Water Resources
Urban Development
+ Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
NC. LICENSE NO. F-0374
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PROJ.
DATE: NOV 2015
Q.C.:
TM
Q.C. DATE:
11/2016
DRAWING NUMBER:
D1
PROJ.
NO.:
20150095.00. RA