SW6210703_Plansheet - Other_20210820 (7)

1
0
PIPE OUTLET TO FLAT AREA -
NO WELL-DEFINED CHANNEL
A - �n o A
0 0
M �
G'
PLAN
I I -III -III -III -III-III- I-
=J11�JJ.=111 _ 11-I � I III-� D
FILTER LAYER
GRAVEL OR FABRIC
SECTION A -A
PIPE OUTLE
WELL-DEFINED
NOTES
1. LA IS THE LENGTH OF THE RIPRAP
APRON.
2. D = 1.5 TIMES THE MAXIMUM
STONE DIAMETER BUT NOT LESS
THAN 6".
3. IN A WELL-DEFINED CHANNEL EXTEND
THE APRON UP THE CHANNEL
BANKS TO AN ELEVATION OF 6"
ABOVE THE MAXIMUM TAILWATER
DEPTH OR TO THE TOP OF THE BANK,
WHICHEVER IS LESS.
4. A FILTER FABRIC OR BLANKET SHOULD BE
INSTALLED BETWEEN THE RIPRAP
AND SOIL FOUNDATION.
PLAN
GRAVEL OR FABRIC
_ O
I I=1 I I=1 I I=1 11=
I I LEI I ICI I_L�I_
FILTER LAYER
GRAVEL OR FABRIC
SECTION A -A
MAINTENANCE
INSPECT RIPRAP OUTLET STRUCTURES WEEKLY
AND AFTER SIGNIFICANT 0 INCH OR GREATER)
RAINFALL EVENTS TO SEE IF ANY EROSION
AROUND OR BELOW THE RIPRAP HAS TAKEN
PLACE, OR IF STONES HAVE BEEN DISLODGED.
IMMEDIATELY MAKE ALL NEEDED REPAIRS TO
PREVENT FURTHER DAMAGE.
NTS
TYPICAL RIP RAP APRON
GRASSED OR RIP RAP LINED SWALE
NOTE: THIS CROSS SECTION IS TO BE USED FOR THE
ENTIRE LENGTH OF THE SWALE.
SEE PLAN FOR WIDTH
GRASS OR RIP RAP LINING
SEE PLAN
SEE PLAN FOR
1� DEPTH
SEE PLAN
SEE 1
,.a.1..1..1..a,' PLAN
'=I I I I =i rf Ij I
COMPACTED SEE PLAN
SUBGRADE
EXISTING
GROUND
CONSTRUCTION SPECIFICATIONS:
1. REMOVE ALL TREES, BRUSH, STUMPS, AND OTHER
OBJECTIONABLE MATERIAL FROM THE FOUNDATION AREA.
2. EXCAVATE THE CHANNEL AND SHAPE IT TO NEAT LINES
AND DIMENSIONS SHOWN ON THE PLANS PLUS 0.2 FT
OVERCUT AROUND THE CHANNEL PERIMETER TO ALLOW
FOR BULKING DURING SEEDBED PREPARATIONS AND SOD
BUILDUP.
3. REMOVE AND PROPERLY DISPOSE OF ALL EXCESS SOIL
SO THAT SURFACE WATER MAY ENTER THE CHANNEL
FREELY.
4. ESTABLISH GRASS IN THE CHANNEL IMMEDIATELY.
MAINTENANCE & CONSTRUCTION:
1. INSPECT THE SWALE FOR EROSION ONCE A WEEK AND AFTER EVERY RAINFALL.
2. IMMEDIATELY REPAIR AND/OR REPLACE ANY DAMAGED AREAS.
3. MAINTAIN PROPER CROSS SECTION UNTIL THE SWALE IS STABLE.
4. KEEP THE GRASS IN A HEALTHY, VIGOROUS CONDITION AT ALL TIMES.
TYPICAL SWALE CROSS SECTION
NTS
CHANNEL INSTALLATION
F12"
O
6'
v I
N/'' i 6'
.'
/.`. .
»_6»
....
. .
1. PREPARE SOIL BEFORE INSTALLING BLANKETS, INCLUDING ANY NECESSARY APPLICATION OF LIME, FERTILIZER, AND SEED.
NOTE: WHEN USING CELL-0-SEED DO NOT SEED PREPARED AREA. CELL-0-SEED MUST BE INSTALLED WITH PAPER SIDE DOWN.
2. BEGIN AT THE TOP OF THE CHANNEL BY ANCHORING THE BLANKET IN A 6" (15 CM) DEEP X 6" (15 CM) WIDE TRENCH WITH
APPROXIMATELY 12" (30 CM) OF BLANKET EXTENDED BEYOND THE UP -SLOPE PORTION OF THE TRENCH. ANCHOR THE BLANKET
WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30 CM) APART IN THE BOTTOM OF THE TRENCH. BACKFILL AND COMPACT
THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" (30 CM) PORTION OF BLANKET BACK
OVER SEED AND COMPACTED SOIL. SECURE BLANKET OVER COMPACTED SOIL WITH A ROW OF STAPLES/STAKES SPACED
APPROXIMATELY 12" (30 CM) ACROSS THE WIDTH OF THE BLANKET.
3. ROLL CENTER BLANKET IN DIRECTION OF WATER FLOW IN BOTTOM OF CHANNEL. BLANKETS WILL UNROLL WITH APPROPRIATE SIDE
AGAINST THE SOIL SURFACE. ALL BLANKETS MUST BE SECURELY FASTENED TO SOIL SURFACE BY PLACING STAPLES STAKES IN
APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLE PATTERN GUIDE. WHEN USING THE DOT SYSTEM , STAPLES/STAKES SHOULD BE
PLACED THROUGH EACH OF THE COLORED DOTS CORRESPONDING TO THE APPROPRIATE STAPLE PATTERN.
4. PLACE CONSECUTIVE BLANKETS END OVER END (SHINGLE STYLE) WITH A 4" - 6" (10 CM -15 CM) OVERLAP. USE A DOUBLE
ROW OF STAPLES STAGGERED 4" (10 CM) APART AND 4" (10 CM) ON CENTER TO SECURE BLANKETS.
5. FULL LENGTH EDGE OF BLANKETS AT TOP OF SIDE SLOPES MUST BE ANCHORED WITH A ROW OF STAPLES/STAKES
APPROXIMATELY 12" (30 CM) APART IN A 6" (15 CM) DEEP X 6" (15 CM) WIDE TRENCH. BACKFILL AND COMPACT THE TRENCH
AFTER STAPLING.
6. ADJACENT BLANKETS MUST BE OVERLAPPED APPROXIMATELY 2" - 5" (5 CM -12.5 CM) (DEPENDING ON BLANKET TYPE) AND
STAPLED.
7. IN HIGH FLOW CHANNEL APPLICATIONS, A STAPLE CHECK SLOT IS RECOMMENDED AT 30 TO 40 FOOT (9 M - 12 M) INTERVALS.
USE A DOUBLE ROW OF STAPLES STAGGERED 4" (10 CM) APART AND 4" (10 CM) ON CENTER OVER ENTIRE WIDTH OF THE
CHANNEL.
8. THE TERMINAL END OF THE BLANKETS MUST BE ANCHORED WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30 CM)
APART IN A 6" (15 CM) DEEP X 6" (15 CM) WIDE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING.
NOTE: * IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE OR STAKE LENGTHS GREATER THAN 6" (15 CM) MAY BE NECESSARY TO
PROPERLY ANCHOR THE BLANKETS.
A NOTE:
B C CRITICAL POINTS * HORIZONTAL STAPLE SPACING SHOULD BE ALTERED
IF NECESSARY TO ALLOW STAPLES TO SECURE THE
A. OVERLAPS AND SEAMS CRITICAL POINTS ALONG THE CHANNEL SURFACE.
B. PROJECTED WATER LINE
C. CHANNEL BOTTOM/SIDE ** IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE
SLOPE VERTICES OR STAKE LENGTHS GREATER THAN 6" (15 cm) MAY
BE NECESSARY TO PROPERLY ANCHOR THE BLANKETS.
MAINTENANCE:
1. INSPECT THE EROSION CONTROL BLANKET ONCE A WEEK AND AFTER EVERY RAINFALL.
2. IMMEDIATELY REPAIR AND/OR REPLACE ANY DAMAGED BLANKET.
3. IF GROUND COVER IS NOT ESTABLISHED THROUGH THE BLANKET WITHIN 2 WEEKS, THE BLANKET
SHOULD BE REMOVED AND THE AREA RESEEDED. AFTER RESEEDING, THE BLANKET SHOULD BE NTS
REINSTALLED.
2 EROSION CONTROL BLANKET INSTALLATION
PLAN VIEW
INFLOW _
STRUCTURE
-n
SKIMMER
DEWATERING
DEVICE
ON STONE
BEDDING
MIN 8"
BAFFLES
INFLOW
DEWATERING
ZONE
FILTER F
CONSTRUCTION SPECIFICATIONS
1. CLEAR, GRUB & STRIP TOPSOIL FROM AREAS UNDER THE EMBANKMENT TO
REMOVE TREES, VEGETATION, ROOTS AND OTHER OBJECTIONABLE MATERIAL.
PLACE TEMPORARY SEDIMENT CONTROLS BELOW THE BASIN AS NEEDED.
2. ENSURE THAT FILL MATERIAL FOR THE EMBANKMENT IS FREE OF ROOTS,
WOOD VEGETATION, ORGANIC MATTER AND OTHER OBJECTIONABLE MATERIAL
PLACE THE FILL IN LIFTS NOT TO EXCEED 9 INCHES AND MACHINE COMPACT IT.
OVER FILL THE EMBANKMENT 6 INCHES TO ALLOW FOR SETTLEMENT.
3. SHAPE THE BASIN TO THE SPECIFIED DIMENSIONS. PREVENT THE SKIMMING
DEVICE FROM SETTLING INTO THE MUD BY EXCAVATING A SHALLOW PIT UNDER
THE SKIMMER OR PROVIDING A LOW SUPPORT UNDER THE SKIMMER OF STONE
OR TIMBER.
4. PLACE THE BARREL ON A FIRM, SMOOTH FOUNDATION OF IMPERVIOUS SOIL.
PLACE THE FILL MATERIAL AROUND THE PIPE SPILLWAY IN 4 INCH LAYERS AND
COMPACT IT UNDER AND AROUND THE PIPE TO AT LEAST THE SAME DENSITY AS
THE ADJACENT EMBANKMENT. PLACE A MINIMUM OF 2 FEET OF COMPACTED
BACKFILL OVER THE PIPE SPILLWAY BEFORE CROSSING IT WITH CONSTRUCTION
EQUIPMENT.
5. ASSEMBLE THE SKIMMER FOLLOWING THE MANUFACTURER'S INSTRUCTIONS
6. LAY THE ASSEMBLED SKIMMER ON THE BOTTOM OF THE BASIN WITH THE
FLEXIBLE JOINT AT THE INLET OF THE BARREL PIPE. ATTACHED THE FLEXIBLE
JOINT TO THE BARREL PIPE AND POSITION THE SKIMMER OVER THE EXCAVATED
PIT. ATTACH A ROPE TO THE SKIMMER AND ANCHOR IT TO THE SIDE OF THE
BASIN.
7. INSTALL THE SPILLWAY IN UNDISTURBED SOIL TO THE GREATEST EXTEND
POSSIBLE. THE SPILLWAY SHOULD BE LINED WITH LAMINATED PLASTIC OR
IMPERMEABLE GEOTEXTILE FABRIC. THE FABRIC MUST BE WIDE AND LONG
ENOUGH TO COVER THE BOTTOM AND SIDES AND EXTEND ONTO THE TOP OF
THE DAM FOR ANCHORING IN A TRENCH. THE EDGES MAY BE SECURED WITH 8
INCH STAPLES. THE FABRIC MUST BE LONG ENOUGH TO EXTEND DOWN THE
SLOPE AND EXIT ONTO STABLE GROUND. THE WIDTH OF THE FABRIC MUST BE
ONE PIECE. IF MULTIPLE SECTIONS AREA REQUIRED, THE UPPER SECTION
SHOULD OVERLAP THE LOWER SECTION SO THAT WATER CANNOT FLOW UNDER
THE FABRIC.
EMERGENCY
SPILLWAY
STONE
1' FREEBOARD
SEDIMENT --
STORAGE ZONE
CROSS-SECTION VIEW
8. DISCHARGE WATER INTO THE BASIN TO PREVENT EROSION. USE TEMPORARY
SLOPE DRAINS OR DIVERSIONS WITH OUTLET PROTECTION TO DIVERT SEDIMENT
LADEN WATER TO THE UPPER END OF THE POOL AREA TO IMPROVE BASIN TRAP
EFFICIENCY.
9. CONSTRUCT THE STRUCTURE SO THAT THE DISTURBED AREA IS MINIMIZED.
DIVERT SURFACE WATER AWAY FROM BARE AREAS. COMPLETE THE
EMBANKMENT BEFORE THE AREA IS CLEARED.
10. INSTALL POROUS BAFFLES AS SPECIFIED.
11. AFTER ALL SEDIMENT PRODUCING AREAS HAVE BEEN STABILIZED, REMOVE
THE STRUCTURE AND ALL THE UNSTABLE SEDIMENT. SMOOTH THE AREA TO
BLEND WITH THE ADJOINING AREAS AND STABILIZE PROPERLY.
6" MIN. INVERT ELEVATION OF
EMERGENCY SPILLWAY
SPILLWAY
I
SCH 40 PVC **SKIMMER CAN BE PURCHASED FROM J.W. FAIRCLOTH & SON INC.
PIPE SKIMMER CHOSEN SHALL BE EQUAL TO THE FAIRCLOTH SKIMMER.
SKIMMER
MAINTENANCE
INSPECT SKIMMER SEDIMENT BASINS WEEKLY AND AFTER EACH PERIOD OF
SIGNIFICANT RAINFALL. REMOVE SEDIMENT AND RESTORE TRAP TO ITS ORIGINAL
DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE-HALF THE HEIGHT
OF THE FIRST BAFFLE. EXCAVATE SEDIMENT FROM THE ENTIRE BASIN. MAKE SURE
VEGETATION GROWING IN THE BOTTOM OF THE BASIN DOES NOT HOLD DOWN THE
SKIMMER. PLACE THE SEDIMENT THAT IS REMOVED IN AN AREA WITH SEDIMENT
CONTROLS.
REPAIR THE BAFFLES IF THEY ARE DAMAGED. RE -ANCHOR THE BAFFLES IF WATER
IS FLOWING UNDERNEATH OR AROUND THEM.
UNCLOGGED THE SKIMMER AS NEEDED. CHECK TO MAKE SURE ORIFICE INSIDE OF
THE SKIMMER IS NOT CLOGGED; IF SO, REMOVE THE DEBRIS. IF SKIMMER ARM OR
BARREL IS CLOGGED, REMOVE THE ORIFICE AND CLEAR THE DEBRIS.
CHECK THE FABRIC LINED SPILLWAY FOR DAMAGE AND MAKE ANY REQUIRED
REPAIRS WITH FABRIC THAT SPANS THE FULL WIDTH OF THE SPILLWAY. CHECK
THE EMBANKMENT, SPILLWAYS AND OUTLET FOR EROSION DAMAGE. MAKE ALL
NECESSARY REPAIRS IMMEDIATELY. REMOVE TRASH AND DEBRIS FROM THE
SKIMMER AND POOL AREAS.
3 TEMPORARY SKIMMER BASIN
NTS
NOTES:
1. INSTALL SILT FENCE PER STD. SILT FENCE DETAIL.
2. LOCATE REINFORCED OUTLET AT LOW POINTS OF SILT FENCE BARRIER.
STEEL FENCE P(
3. PLACE RIP RAP WITH CARE. DO NOT TEAR SILT FENCE FABRIC.
WIRE FEP
HARDWARE CLOTI
MAINTENANCE NOTES: FILTER OF 1" DIAMETER
WASHED STONE
1. REMOVE THE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE
ADEQUATE VOLUME FOR THE NEXT RAIN AND TO REDUCE
PRESSURE ON THE FENCE/OUTLET. TAKE CARE TO AVOID
UNDERMINING THE FENCE DURING CLEANOUT. REMOVE &
REPLACE STONE AS NECESSARY AS IT BECOMES CLOGGED WITH
SEDIMENT.
2. 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.
TOP OF SILT FENCE
MUST BE AT LEAST 1'
SILT FENCE
ABOVE THE TOP OF
THE WASHED STONE
I 4' MIN. _
0
i� 3' FILTER FABRIC
ON GROUND
II BURY 6" OF UPPER EDGE OF
u FILTER FABRIC IN TRENCH
SECTION VIEW
18" MINIMUM
HEIGHT OF STONE
_11 I I .III -III -,I I1I1_II=I=11I-=-=lll� �I-
'il==III-1
BURY WIRE FENCE,
FILTER FABRIC,
AND HARDWARE
FRONT VIEW CLOTH IN TRENCH
STEEL FENCE POST
SET MAX 2' APART
MIN. 18" INTO SOLID
GROUND
SILT FENCE OUTLET
3
\ / LASS 1 RIP RAP
(SEE SECTION THRU BASIN BELOW)
LASS 1 RIP RAP HEADWALL
i
1'
T WASHED STONE 1' THICK X THIGH MIN.
SEDIMENT STORAGE AREA
PERSPECTIVE VIEW
NOT TO SCALE
FLOO
STORAGE NATURAL GROUND
ZONE 1' 2' RIP RAP HEADWALL
NTS
SEDIMENT 1' 1 S
STORAGE 1.5 - - - - -
\ FLOW
FLOy,,- 1.5
----PIPE INVERT
#57 FILTER FABRIC
MAX. SEDIMENT DEPT WASHED LASS 1 RIP -RAP
CONSTRUCTION SPECIFICATIONS:
(CLEAN OUT POINT) STONE
1. CLEAR THE AREA OF ALL DEBRIS.
2. INSTALL THE CLASS B OR CLASS I RIPRAP IN A SEMI -CIRCLE AROUND
SECTION THRU BASIN, FILTER, & CULVERT PIPE
THE PIPE INLET.
NOT TO SCALE
3. A 1 FOOT THICK LAYER OF NCDOT #5 OR #57 STONE SHOULD BE
MAINTENANCE:
PLACED ON THE OUTSIDE SLOPE OF THE RIPRAP.
4. SEDIMENT STORAGE AREA SHOULD BE EXCAVATED AROUND THE
INSPECT ROCK PIPE INLET PROTECTION AT LEAST WEEKLY AND AFTER
OUTSIDE OF THE STONE HORSESHOE 18" BELOW NATURAL GRADE.
EACH SIGNIFICANT (1/2" OR GREATER) RAINFALL EVENT AND REPAIR
5. WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, FILL
IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE SEDIMENT
DEPRESSION AND ESTABLISH FINAL GRADING ELEVATIONS, COMPACT,
STORAGE AREA TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS
AND STABILIZE WITH GROUND COVER.
ACCUMULATED TO 1/2 THE DESIGN DEPTH OF THE TRAP. PLACE THE
SEDIMENT THAT IS REMOVED IN THE DESIGNATED DISPOSAL AREA AND
REPLACE THE CONTAMINATED PART OF THE GRAVEL FACING.
CHECK THE STRUCTURE FOR DAMAGE. ANY RIPRAP DISPLACED FROM
THE STONE HORSESHOE MUST BE REPLACED IMMEDIATELY.
5 ROCK PIPE INLET PROTECTION
NTS
site
solutions
civil engineering I Land surveying
409 Chicago Drive, Suite.U2, Fayetteville, NC 28306
office 1 910-426-6777 fax [phone] license number I C-2354
www.4Dsitesotutions.com
\-`uCARc) �'F1'
`2ipF SS � ••2
SEA
02
COT
•• G I NE .•: ja���
U6-v�-�1
REVISIONS
PROJECT NAME
SPELL
ESTATES
SUBDIVISION
EROSION
CONTROL
DETAILS
CLIENT
- ConstructioLff
n
409 Chicago Drive - Suite 103
Fayetteville, North Carolina 28306
Phone: [phone]
PROJECT INFORMATION
DESIGNED BY:
SEAN/CALEB
DRAWN BY:
SEAN/CALEB
CHECKED BY:
SCOTT
PROJECT NUMBER:
1753
DRAWING SCALE
NOT TO SCALE
DATE RELEASED
JUNE 7, 2021
SHEET NUMBER
C-601