SW4230101_Plansheet - C5.4 Site Detail_20230526

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INNA b" DEEP TREN = a L
MIN. WIDTH OF TEMP. LINER 78z
6' NOTES: MAINTENANCE $
�1 LINRORARY 1. TEMPORARY DIVERSION DITCH TO BE USED TO INTERCEPT yyp9 . ti...N
r� FLOW AND/OR DIVERT TO A SEDIMENT CONTROL MEASURE OR INSPECT TEMPORARY DIVERSIONS ONCE A WEEK AND AFTER '• ��.•`
\ \ SCM. EVERY RAINFALL. IMMEDIATELY REMOVE SEDIMENT FROM �•,1 /1111`i1i1�1aa�`�
2. SILT SHALL BE REMOVED WHEN DITCH IS ONE-HALF FULL. THE FLOW AREA AND REPAIR THE DIVERSION RIDGE.
3. DITCH SHALL BE RECONSTRUCTED WHEN DAMAGED BY CAREFULLY CHECK OUTLETS AND MAKE TIMELY REPAIRS AS
TEMPORARY LINER GRASS-LINED CHANNEL EQUIPMENT OR COVERED BY FILL. NEEDED. WHEN THE AREA PROTECTED IS PERMANENTLY
NITS 4. STABILIZE DIVERSION DITCH BERM WITH TEMPORARY STABILIZED, REMOVE THE RIDGE AND THE CHANNEL TO
BLEND WITH THE NATURAL GROUND LEVEL AND
SEEDING, MULCH WITH TAC, AND/OR EROSION CONTROL ° MAINTENANCE E
NETTING. APPROPRIATELY STABILIZE IT. RIP RAP SHOULD BE U
INSPECTED PERIODICALLY FOR o
A SCOUR OR DISLODGED N E
A STONES. CONTROL OF WEED = zE AND BRUSH GROWTH MAY BE 3
3
PIPE W�
3.5 STAPLES/SY NEEDED IN SOME LOCATIONS. a 3
0 I.D.
N USING 6", 11 GAUGE 0 w E
x x x WIRE "U" STAPLES. -
W � N
� USE 8" STAPLES 3 TIMES I.D.(W2)
Q U- CO z
CHANNEL LINER 20 FOR LOOSE SOILS. w U.
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9 GAUGE STAPLES + ° a 3: o O
x x x OR HEAVIER IN �IRF c7 a; rn a
HARD OR ROCKY OFFS 9I0 z W '� rn �
SOILS. N
2' MIN. aa �Q w
WASTE MATERIAL-COMPACT,
FI<< VAR. FSEED&MULCH AFTER PLAN VIEW � n z
-I `S�Oio 2' - 10' CONSTRUCTION OF DITCH �Q+ ?�
CONSTRUCTION NOTES: 6.5' -I =F9 12" L NOTES: L O
i - = 1r' ZPIIrP \ C rn LU
1. INSTALL EXCELSIOR CHANNEL LINING IN ALL SWALES 1. L = THE LENGTH OF THE RIPRAP APRON.
EXCELSIOR MAT STAPLE PATTERN - �' 1- T ° 2. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER
OR AREAS OF CONCENTRATED STORMWATER FLOW. 1 VAR. P�' 8 NTS III III III III-IIII I I Mgo'-2' ` _ _ _ _�1 _ _�1=III= „
2. SEE SPECIFICATIONS FOR TEMP. LINING I I I I I j '� 3' _ I I I I I I I �L1=1TI=ITI=III=ITI- -1TI=III=ITI BUT NOT LESS THAN 6 (INCHES). w
III I Ill= =� =11 d =,��,1-1'
1i1-1i1-111-1i1= 1-1i1-111-L11 3. A FILTER BLANKET OR FILTER FABRIC SHOULD BE
REQUIREMENTS. I I- -1T1-1T1�T1-1 y Tl-1T1�TI
CROSS SECTIONAL VIEW - 1 _ _ _ _ �ii -" INSTALLED BETWEEN THE RIPRAP AND SOIL
3. PREPARE SOIL BEFORE INSTALLING MATS OR NETS, III III-III- =1i1i1=1i1=111- FOUNDATION.
_I 1 r vi
INCLUDING APPLICATION OF LIME, FERTILIZER AND 12 4. MAINTAIN ENERGY DISSIPATERS INSTALLED
SEED.
SECTIONAA-A' FILTER DURING EARLY SITE WORK THROUGHOUT THE
4. BEGIN AT THE TOP OF THE CHANNEL BY ANCHORING FABRIC CONSTRUCTION AREA.
THE NET OR MAT IN A 6" DEEP TRENCH. BACKFILL MAINTENANCE NOTES: ENERGY DISSIPATER SCHEDULE o
AND COMPACT THE TRENCH AFTER STAPLING. DITCH TOTAL FLO SLOPE BOTTOM WIDTH RIGHT SLOPE LEFT SLOPE FLOW DEPTH TEMPORARY LINER PERMANENT LINER
1. GRASSED-LINED CHANNELS TO BE (CFS) (%) (FT) (H:V) (H:V) (FT) LENGTH THICKNESS D50 SIZE STONE
5. ROLL CENTER MAT OR NET IN DIRECTION OF WATER INSPECTED WEEKLY AND AFTER EVERY Al 14.3 0.5 0 3:1 3:1 1.35 CURLED MAT N/A PIPE SIZE W1 (FT) W2 (FT) o
(FT) (IN). (d) (IN.) CLASS LU
FLOW ON BOTTOM OF CHANNEL. RAINFALL EVENT, DURING THE A2 2.50 4.0 0 3:1 3:1 0.50 CURLED MAT N/A >
6. PLACE MAT OR NET END OVER END (SHINGLE STYLE) ESTABLISHMENT AND AFTER THE A3 3.30 3.2 0 3:1 3:1 0.60 CURLED MAT N/A RR EW-1 18" 7.5 4.5 6.0 12 3 A
ESTABLISHMENT PERIOD. PDD1 1.20 3.2 0 4:1 5:1 0.35 CURLED MAT GRASS RR FES B1 12" 5.0 3.0 4.0 12 3 A U p
WITH A 6" OVERLAP. USE DOUBLE ROW OF Q
PDD2 6.70 3.2 2 20:1 11:1 0.40 CURLED MAT GRASS RR FES C1 18" 7.5 4.5 6.0 22 6 B
STAGGERED STAPLES 4" APART TO SECURE. 2. REPAIRS ARE TO BE MADE IMMEDIATELY. z
PDD3 1.00 3.1 2 12:1 14:1 0.15 CURLED MAT GRASS RR FES D1 15" 6.3 3.8 5.0 22 6 B 0
7. FULL LENGTH EDGE OF MAT OR NET AT TOP SIDE 3. REMOVE SEDIMENT ACCUMULATIONS TO PDD4 2.90 3.7 0 9:1 13:1 0.35 CURLED MAT GRASS U) DATE
SLOPES SHALL BE ANCHORED IN 6" DEEP TRENCH MAINTAIN DESIGNED CARRYING CAPACITY. PDDS 1 1.60 1 3.1 1 0 1 11:1 1 7:1 0.35 1 CURLED MAT GRASS RR FES E1 15" 6.3 3.8 5.0 22 6 B >
PDD6 14.4 1.0 0 4:1 6:1 1.10 CURLED MAT GRASS RR FES F1 15" 6.3 3.8 5.0 22 6 B 0512312023
AFTER STAPLING. 4. GRASS TO BE HEALTHY AND IN VIGOROUS
PDD7 1.60 4.7 0 3:1 7:1 0,30 CURLED MAT GRASS O
8. MATS OR NETS SHALL BE OVERLAPPED 4" OVER THE CONDITIONS AT ALL TIMES. PDD8 2.80 4.1 2 20:1 18:1 0.30 CURLED MAT GRASS DRAWN BY
CENTER BLANKET AND STAPLED.
LMB
9. THE TERMINAL END OF THE MAT OR NET MUST BE *SWALES HAVE BEEN DESIGNED USING RAINFALL INTENSITY FOR THE 10-YEAR STORM ACCORDING TO
ANCHORED IN A 6 DEEP TRENCH. BACKFILL AND
COMPACT THE TRENCH AFTER STAPLING.
•THE NCDENR EROSION CONTROL MANUAL. DESIGNED BY
• GWF
**NORTH AMERICAN GREEN MATERIAL OR APPROVED EQUIVALENT
• CHECKED BY
• GWF
• • SCALE
O1 TEMPORARY CHANNEL LINING N.T.S. OZ TEMPORARY DIVERSION DITCH / BERM N.T.S. O3 RIP RAP OUTLET PROTECTION N.T.S. • AS SHOWN
•
•
•
PROVIDE FENCE AS DESCRIBED IN DRAWING INSTALLATION SPECIFICATIONS: MAINTENANCE NOTES:
I,E TREE PROTECTION, SILT FENCE, 1, THE BASE OFBOTH END POSTS SHOULD BE AT LEAST ON FOOT HIGHER THAN THE
T
MIDDLE OF THE FENCE, CHECK WITH A LEVEL IF NECESSSARY, 1. INSPECT THE BARRIER AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT RAINFALL AND REPAIR IMMEDIATELY.
2. INSTALL POSTS 4 FEET APART IN CRITICAL AREAS AND 6 FEET APART ON STANDARD
APPLICATIONS. 2. REMOVE SEDIMENT AND RESTORE SEDIMENT STORAGE AREA TO ITS ORIGINAL DIMENSIONS WHEN SEDIMENT
8'MAX STANDARD STRENGTH FABRIC WITH WIRE FENCE .HAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH OF THE TRAP
3. INSTALL POSTS 2 FEET DEEP ON THE DOWNSTREAM SIDE OF THE SILT FENCE, AND AS _ IL
1st Cell 2nd Cell
6' MAX EXTRA STRENGTH FABRIC WITHOUT WIRE FENCE CLOSE AS POSSIBLE TO THE FABRIC, ENABLING POSTS TO SUPPORT THE FABRIC FROM %of basin 5%of bas
UPSTREAM WATER PRESSURE. 3. CHECK THE STRUCTURE FOR DAMAGE AND REPLACE ANY DISPLACED RIPRAP IMMEDIATELY. rface area surface are FENCE AND FABRIC J
MIN 10 GA. INLE TLE zON BURIED IN TRENCH
LINE 4. INSTALL POSTS WITH THE NIPPLES FACING AWAY FROM THE SILT FABRIC. of *of
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Wr 5. ATTACH THE FABRIC TO EACH POST WITH THREE TIES, ALL SPACED WITHIN THE TOP 8 4. APPROPRIATELY STABILIZE ALL BARE AREAS AROUND THE INLET. in urface ar in surface ar a �- STEEL POST -
INCHES OF THE FABRIC. ATTACH EACH TIE DIAGONALLY 45 DEGREES THROUGH THE a a)
6"X6"TRENCH,
FABRIC,WITH EACH PUNCTURE AT LEAST 1 INCH VERTICALLY APART. ALSO, EACH TIE , BACKFILLED AND 1 2' 0 m
TREE PROTECTION AREA PLASTIC SHOULD BE POSITIONED TO HANG ON A POST NIPPLE WHEN TIGHTENED TO PREVENT 1
--- - - WIRE TIES SAGGING. COMPACTED = 3
=. oo NOT ENTER _„_ --_ 6, WRAP APPROXIMATELY 6 INCHES OF FABRIC AROUND THE END POSTS AND SECURE WITH Q
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MIN. 12-v2 GA. 3 TIES. SECTION VIEW AT OPENING �//�� U
--- -- SILT FENCE FABRIC ----- - _- PLAN VIEW \LJ a
NSTALLEDTOSECOND INTERMEDIATE 7. NO MORE THAN 24 INCHES OF A 36 INCH FABRIC IS ALLOWED ABOVE GROUND LEVEL. FLOW
WIRE FROM TOP - -------- - --- WIRES
_ _______ __ ___ ________"_ __= 8. THE INSTALLATION SHOULD BE CHECKED AND CORRECTED FOR ANY DEVIATIONS
- --- -_--_- --- ------- BEFORE COMPACTION. NOTES: U o
`° NATURAL CLASS 1 RIP RAP SEE 1. BAFFLE MATERIAL SHOULD BE SECURED AT THE BOTTOM AND SIDES
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... . ........ ... .... . ... ........„- - GROUND 9• COMPACTION IS VITALLY IMPORTANT FOR EFFECTIVE RESULTS. COMPACT THE SOIL SECTION THRU BASIN BELOW I USING STAPLES OR BY TRENCHING AS FOR SILT FENCE.
IMMEDIATELY NEXT TO THE SILT FENCE WITH THE FRONT WHEEL OF THE TRACTOR, SKID / Q N
STEER,OR ROLLER EXERTING AT LEAST 60 POUNDS PER SQUARE INCH. COMPACT THE \ \� \ \ \ \\ 2. MOST OF THE SEDIMENT WILL ACCUMULATE IN THE 1ST BAY, z
__==;____ - - - UPSTREAM SIDE FIRST, AND THEN EACH SIDE TWICE FOR A TOTAL OF FOUR TRIPS. WHICH SHOULD BE READILY ACCESSIBLE FOR MAINTENANCE. N
8" DOWN & 10. TREE PROTECTION SIGNS ARE TO BE PLACED EVERY 50-FT AND FENCE MUST REMAIN 3. PROVIDE 3 BAFFLES (USE TWO IF LESS THAN 20 FEET IN LENGTH). PROVIDE LJJ Q z r-
4" FORWARD UNTIL CLOSEOUT OF PROJECT. . . 1 I / 1 ' ��� i/. . 5 BAFFLES FOR DRAINAGE AREAS GREATER THAN 10 ACRES. U
KEY IN (!)
ALONG THE TRENCH SILT FENCE _ ��__ LC \ \\\ �I\ 1 �°° �� z ~ J `
24„ ° ° 4. BAFFLE SHALL BE 700 G/M2 COIR EROSION BLANKET. U ,_,
=
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FABRIC \ I °� `� aNVERT / RIP RAP 5. TOPS OF BAFFLES SHOULD BE 2 INCHES LOWER THAN THE TOP OF THE W z Z Q a
_� PIPE °0 HEADWALL BERMS J _j L J -
MAINTENANCE: �_ ��� °° 6. INSPECT BAFFLES FOR REPAIR ONCE A WEEK AND AFTER EACH RAINFALL 1 p o
1. INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE - -
ANY REQUIRED REPAIRS IMMEDIATELY. /�� / / #5 WASHED STONE (A <
W 3
/ I / i/i -_ ,1 THICK X 3 HIGH MIN. Z c�i ~
m 2. SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE,TEAR, DECOMPOSE, OR EDI 1 ' I I I� r I�/� / CROSS SECTION i--I (D ri
BECOME INEFFECTIVE, REPLACE IT IMMEDIATELY. �j/ ST ' - J Uj I
WIRE FENCE - - SUPPORT ROPE U a (D
J 3, REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE / SUPPORT POST 0 z Q
a VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE FENCE.TAKE CARE i /.l I I I TO WIRE TO 2 z
I ` , 24 INTRO BOTTOM STAKE TO z
TO AVOID UNDERMINING THE FENCE DURING CLEANOUT. I PREVENT SAGGING w 0
FILTER FABRIC / / I
OR SIDE SUPPORT WIRE Q o
0 4. REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING U c _
o BACKFILL TRENCH THE AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA /7/ m w
N AND COMPACT HAS BEEN PROPERLY STABILIZED. PERSPECTIVE VIEW = E 2
Cn
N STEEL POST THOROUGHLYCo
NATURAL
a o
N GROUND OEL moo O
o =
4".MIN.'.'.'.'.'
AREA TO BE COIR MESH OR SIMILAR, STAPLED OR
o 11_:!J DISTURBED TRENCHED INTO BOTTOM OR SIDE zp
a UPSL❑PE 16"X12'SIGN (CUT, FILL, ETC. Q
� X
8" MIN 1" BLOCK LETTERS °'
TREE PROTECTION AREA PIPE INVERT r
BLACK LETTERS ON WHITE 1 FLOOD o w
0 24' BACKGROUND STORAGE MAINTENANCE o
DO NOT ENTER 1/4" BLACK BORDER FLOW ZONE Q=
z
INSPECT BAFFLES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY o
1 3
o ALL WEATHER MEDIA \_ 31 REQUIRED REPAIRS IMMEDIATELY.
U LID ZONA DE PROTECCION 200' SPACING BETWEEN SIGNS f NATURAL .> Y
2.5 12' g �o� GROUND
co 00
PARAARBOLES-NOENTRE 1 12' o 0 0 3' BE SURE TO MAINTAIN ACCESS TO THE BAFFLES. SHOULD THE FABRIC OF A BAFFLE X
M KEY IN FABRIC 4 ocboCP �o COLLAPSE, TEAR, DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
DOWNWARD AND 4" 12 og o g L
FORWARD ALONG
v TRENCH PLACE SIGN ON ALL TREE PROTECTION SEDIMENT STOR CLASS B STONE REMOVE SEDIMENT DEPOSITS WHEN IT REACHES HALF FULL TO PROVIDE ADEQUATE o
FENCING AND WHERE SILT FENCE 5 #57 WASHED STONE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE BAFFLES.
m REPLACES TREE PROTECTION FENCING. MIN.
0MAX. SEDIMENT DEPTH (CLEAN OUT POINT) TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT. SEDIMENT DEPTH E @
SILT FENCE KEY-IN DETAIL TREE PROTECTION AREA SIGNAGE SHOULD NEVER EXCEED HALF THE DESIGNED STORAGE DEPTH. -0, m
o SECTION 0
w1 REMOVE ALL BAFFLE MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE
AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS Job No. � o
1 BEEN PROPERLY STABILIZED. Co 0
w 52013 �
m
N 0
0
oN SHEET No. m o
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M 4 q g SILT FENCE N.T.S. O TEMPORARY EXCAVATED PIPE INLET PROTECTION N.T.S. O COIR MESH BAFFLES (NCDENR 6.65) N.T.S. C5.4
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