20220413 Ver 1_Copper District - Phase 1 EC.pdf_20220623

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Skimmer Basin 1 Skimmer Basin 2
EROSION CONTROL LEGEND
STREAM CROSSING CONSTRUCTION DESIGN INFORMATION DESIGN INFORMATION
TOTAL DRAINAGEAREA 5.84 AC TOTAL DRAINAGEAREA 6.95 AC
- - PROPERTY LINE SEQUENCE gv "1
° TOTAL L DISTURBED A REA 5.84 AC TOTAL L DISTURBED A REA 12.79 AC Q / ^ /
Q PROPERTY BUFFER 1. CONTRACTOR SHALL DETERMINE A PROPOSED Tc 5 MIN Tc 5 MIN � xj�ir�
SIZE AND LOCATION OF DIRT BAG FOR RATIONAL C 0.50 RATIONAL C 0.50 / / o% ��\ / / N
-C LOD INITIAL LIMITS OF DISTURBANCE APPROVAL BY TOWN OF CLAYTON PRIOR TO /'� /
° INSTALLATION. DESIGN STORM INTENSITY 7.39 IN/HR DESIGN STORM INTENSITY 7.39 INIHR I /� / ^ I? -I \ JP CO
o CL CLEARING LIMITS PEAK FLOW 21.58 CFS PEAK FLOW 25.68 CFS / / / / 14C PIN# 16
= 2. INSTALL TEMPORARY SILT CHECK DAM / / < \ �� / DB 396
SF SILT FENCE DOWNSTREAM OF PROPOSED STREAM WORK DESIGN CALCULATIONS DESIGN CALCULATIONS /% ,'S /
q) BUT WITHIN THE LIMITS OF IMPACT. SURFACEAREA REQUIRED 7,013 SF SURFACEAREA REQUIRED 8,346 SF 1- // Z.A.N/F
Y TPF TREE PROTECTION FENCE SURFACEAREA PROVIDED 7,564 SF SURFACEAREA PROVIDED 11,002 SF % /w, O JP COATS LLC
3. INSTALL DIRT BAG, AS APPROVED. -� -��
° � / < / z NC PIN# 164800-73-4881 \
COMBINATION TREE PROTECTION/ VOLUME REQUIRED 10,512 CF VOLUME REQUIRED 23,022 CF II,y�� / / DB 4201, PG 33
.� SF/TPF SILT FENCE 4. INSTALL UPSTREAM PUMP AND TEMPORARY DEWATERING TIME 3.13 DAYS DEWATERING TIME 3.22 DAYS v \
FLEXIBLE HOSE. / ^D' \
VOLUMEPROVIDED 13,181 CF VOLUMEPROVIDED 23,274 CF \ -- bra /� -
° > TD > TD TEMPORARY DIVERSION DITCH I!( \ �I J
- 5. PLACE UPSTREAM IMPERVIOUS DIKE AND BEGIN EMBA NKMENT VVIDTH 5 FT EMBANKMENTVVIDTH 5 FT %%% A 3 \\ °"`
0 > TD(CW) CLEAN WATER DIVERSION DITCH PUMPING OPERATIONS FOR STREAM DIVERSION. EMERGENCY SPILLWAY LENGTH 22.0 FT EMERGENCY SPILLWAY LENGTH 26.0 FT d 1 /NN
1, / -
y �,o/ 2 -GR2S PROPOSED TEMPORARY FIELD
6. PLACE DOWNSTREAM IMPERVIOUS DIKE AND EMERGENCY SPILLWAY CAPACITY 23.3 CFS EMERGENCY SPILLWAY CAPACITY 27.6 CFS / / 1� OFFICES FOR PHASE 1 AND \
X SEDIMENT BASIN POROUS BAFFLES � / /�' / �\ PHASE 2 OF EROSION
� PUMPING APPARATUS. DEWATER ENTRAPPED SKIMMER SIZE 2.50 IN SKIMMER SIZE 3.00 IN / ^/ y� j ,�\'L
AREA. - /� // �/ / / CONTROL `
PUMP DISCHARGE HOSE SKIMMER ORIFICE DIAMETER 2.00 IN SKIMMER ORIFICE DIAMETER 2.50 IN
N - - - EXISTING CONTOUR 7. PERFORM INSTALLATION OF CULVERT IN SKIMMER OUTLET ELEVATION 305.50 FT SKIMMER OUTLET ELEVATION 303.00 FT / /� / j ,j \ / / r `309 \ \ )^
u ACCORDANCE WITH THE PLANS WHILE BASIN GEOM ETRY BASINGEOMETRY �6�1� \`� / / / p°�� 30 . \
° MAINTAINING THE PUMP AROUND OPERATION. /� 1 / � (� \
805 PROPOSED CONTOUR AREA (SF) ELEV (FT) AREA (SF) ELEV (FT) i / M 'S �.. ` \ \ 3°
N CONTRACTOR TO ENSURE THAT IN -STREAM / / ;30'1:- 0 7
� WORK IS CONDUCTED IN THE DRY AREA. BOTTOM OF BASIN: 5617 305.5 BOTTOM OF BASIN: 7617 303.0 / ( / / . ` `� \ \ ` �
° DRAINAGE AREA BOUNDARY / ) � / � � \ \ ( \
0 PRIMARY SPILLWAY ELEVATION: 7564 307.5 PRIMARY SPILLWAY ELEVATION: 11002 305.5L� I -�'�\ \ \ (
° CONSTRUCTION ENTRANCE 8. GRADE UPSTREAM BANKS AND INSTALL COIR ;, I I �-`-` 6* \ \ ` -
N CE FIBER MATTING AND TEMPORARY AND TOP OF DA M: 9172 309.0 TOP OF DAM: 10949 307.0 /� --313/ \ \ •,•. \ `L,.t \
Skimmer Basin 3
Skimmer Basin 4
DESIGN INFORMATION
DESIGN INFORMATION
TOTAL DRAINAGEAREA
2.83
AC
TOTAL DRAINAGEAREA
3.73
AC
TOTAL DISTURBED AREA
2.83
AC
TOTAL DISTURBED AREA
3.73
AC
TC
5
MIN
ITC
5
MIN
RATIONAL C
0.50
RATIONAL C
0.50
DESIGN STORM INTENSITY
1 7.39
IN/HR
DESIGN STORM INTENSITY
1 7.39
IN/HR
PEAK FLOW
1 10.46
CFS
PEAK FLOW
1 13.781
CFS
DESIGN CALCULATIONS
DESIGN CALCULATIONS
SURFACEAREA REQUIRED
3,398
SF
SURFACEAREA REQUIRED
4,479
SF
SURFACEAREA PROVIDED
11,193
SF
SURFACEAREA PROVIDED
3,169
SF
VOLUME REQUIRED
5,094
CF
VOLUME REQUIRED
6,714
CF
DEWATERING TIME
2.77
DAYS
DEWATERING TIME
3.44
DAYS
VOLUMEPROVIDED
19,911
CF
VOLUMEPROVIDED
5,073
CF
EMBA NKMENT WIDTH
5
FT
EMBA NKMENT WIDTH
5
FT
EMERGENCY SPILLWAY LENGTH
10.0
FT
EMERGENCY SPILLWAY LENGTH
14.0
FT
EMERGENCY SPILLWAY CAPACITY
10.6
CFS
EMERGENCY SPILLWAY CAPACITY
14.8
CFS
SKIMMER SIZE
3.001
IN
SKIMMER SIZE
1 2.00
IN
SKIMMER ORIFICE DIAMETER
2.501
IN
SKIMMER ORIFICE DIA METER
1 1.25
IN
SKIMMER OUTLET ELEVATION
306.391
FT
SKIMMER OUTLET ELEVATION
1 293.50
FT
BASIN GEDM ETRY
BASIN GEOM EERY
AREA (SF)
ELEV (FT)
AREA (SF)
ELEV (FT)
BOTTOM OF BASIN:
8778
309.0
BOTTOM OF BASIN:
1904
294.5
PRIMARY SPILLWAY ELEVATION:
11193
311.0
PRIMARY SPILLWAY ELEVATION:
3169
296.5
TOP OF DAM:
13153
312.5
TOP OF DAM:
4266
298.0
GENERAL NOTES/EROSION CONTROL MAINTENANCE:
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1. THE CONTRACTOR SHALL DILIGENTLY AND CONTINUOUSLY MAINTAIN ALL
EROSION CONTROL DEVICES AND STRUCTURES.
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2. MAINTAIN AND VERTICALLY ADJUST ALL TEMPORARY DIVERSION DITCHES
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AND SILT FENCE THROUGHOUT GRADING ACTIVITIES TO MAINTAIN DRAINAGE
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PATTERNS TO TEMPORARY SKIMMER SEDIMENT BASIN.
3. AS SITE IS BROUGHT TO GRADE, CONTRACTOR TO DREDGE SKIMMER
SEDIMENT BASINS AND FILL IN WITH SUITABLE FILL MATERIALS. DREDGE
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MATERIAL TO BE PUMPED THROUGH APPROVED SILT BAG DEVICE PRIOR TO
REMOVAL FROM SITE.
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4. THE CONTRACTOR SHALL REMAIN IN CLOSE CONTACT WITH THE TOWN OF
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CLAYTON EROSION CONTROL INSPECTORS SO THAT PERIODIC INSPECTIONS
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CAN BE PREFORMED AT APPROPRIATE STAGES OF CONSTRUCTION.
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5. NO ON -SITE BURIAL PIT WILL BE LOCATED ON THIS SITE. CONTRACTOR
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RESPONSIBLE FOR PROPER DISPOSAL OF DEBRIS.
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6. ANY GRADING BEYOND THE DENUDED LIMITS SHOWN ON THE PLAN IS A VIOLATION
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OF THE TOWN'S EROSION CONTROL ORDINANCE AND IS SUBJECT TO A FINE.
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7. ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CHECKED FOR STABILITY
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AND OPERATION FOLLOWING EVERY RUNOFF -PRODUCING RAINFALL BUT IN NO CASE
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LESS THAN ONCE EVERY WEEK. ANY NEEDED REPAIRS WILL BE MADE IMMEDIATELY
I TO MAINTAIN ALL PRACTICES AS DESIGNED. SEDIMENT WILL BE REMOVED FROM THE
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SEDIMENT TRAP AND INLET PROTECTION DEVICES WHEN STORAGE CAPACITY HAS
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BEEN APPROXIMATELY 50% FILLED. GRAVEL WILL BE CLEANED OR REPLACED WHEN
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THE SEDIMENT POOL NO LONGER DRAINS PROPERLY.
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8. SEDIMENT WILL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN IT
BECOMES APPROXIMATELY 6" DEEP AT THE FENCE. THE SEDIMENT FENCE WILL BE
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REPAIRED AS NECESSARY TO MAINTAIN A BARRIER.
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Q PERMANENT PLANTINGS PER THE DETAILS ON �' - s� I \ (; I *-`�30 \'0W \ 9 J / / / / M ,31
a ® SILT FENCE OUTLET / ^ / \6- �` ` o ` r \ \ , �- / X ,j1 / 9. PERMANENT GROUND COVER MUST BE ESTABLISHED WITHIN THE PROPOSED
6 SHEET C6.1 -EROSION CONTROL DETAILS. / (" / / Z \ o 1 �` \ �- / 312- / I
® CONCRETE WASHOUT STATION I / j \ \ tO I • ` • �` • ` i 3° / /� / / / ,` DITCHES AND CHANNELS. ADDITIONAL MECHANICAL MEASURES WILL BE REQUIRED IF o
0 9. PUMP AROUND AREA TO BE STABILIZED WITH / j � � � 31 - - / \ o ' o in . \• `. =` \ \ \ � - -� / / / / S� N VEGETATIVE COVER CAN NOT BE ESTABLISHED AS PROPOSED. Q0
T PRRARY DIVERSION DITCH \` / ^�
_ � ROCK CHECK DAM MATTING AT THE END OF EACH WORK DAY. �\ / / � ,$�`-`-`-ter •a� `3 / - % (0, I ® / / / �
/ / \ / / 1-1 #2-2 w . J .. 1. `. \ O6. S o / � / 10. PROVIDE STRAW EROSION CONTROL BLANKET WITH BIODEGRADABLE NETTING & C N
/ / / / \�" �`� BOTTOM WIDTH = 1 FT \ o +`.....-.1\ /, \ � \ I / / / 0.5LBS/SQYD STRAW FIBER ON ALL SLOPES THAT ARE 3:1 OR STEEPER AND ARE v 0 0
INLET PROTECTION 10. INSTALL RIP -RAP ALONG THE STREAM BANKS G,, I/ / s\p / / -�\ SIDE SLOPES = 3:1 I Wo /. \\ 05 \ I /- `, ``\ NOT ALREADY SPECIFIED TO RECEIVE ANOTHER TYPE OF BLANKET. z z `n
BELOW THE CULVERT AS SHOWN ON THE q `� hi // - I \ '\`•` ) TEMPORARY WETLAND O \ / - 0
Y L \G 1* DEPTH = 1 FT r:`.`, N
>, ROCK PIPE INLET PROTECTION PLANS. `-*F F �tij�•?� �� / I •-s�.W.-. 2 , \ 11. STABILIZATION IS THE BEST FORM OF EROSION CONTROL. TEMPORARY SEEDING IS ( O I
tt / LINING =NORTH AMERICAN GREENI I o {`•` \ I CONNECTION PIPE I \ O =
9 /� p // % r ^� / SC150 OR APPROVED EQUAL I `'" 1< °4 12" HDPE N � � \ \ \ ~ / NECESSARY TO ACHIEVE EROSION CONTROL ON LARGE DENUDED AREAS AND I w
SKIMMER 11. ENSURE SITE IS STABLE AND EXCAVATE ANY j / - \�� // �'S �c \ I +-•-.� .-{v�.\ �INV. IN = 306.00' 2 O \ \ \ \ ESPECIALLY WHEN SPECIFICALLY REQUIRED AS PART OF THE CONSTRUCTION Q w co
3 ° ACCUMULATED SILT BEFORE REMOVAL OF / �� /// / / 31 0, qj I o •` `�`� • . . > F � \ \ Q
7 � / /�- �F.�// // 1 / ( o o M • �; • • • • • • -• INV. OUT = 303.00 , ,' ,) 0, \ \ COU SEQUENCE SHOWN ON THE PLAN.of i�i
TEMPORARY SLOPE DRAIN IMPERVIOUS DIKES. REMOVE IMPERVIOUS DIKES, (V ? / R0 ;'� I `.`�.`.`.`-`. . .`•a . . /' A FS 1 - NC PIN = O O
r M , / o' / 31O� - - - / u' 0 S # 12. ADDITIONAL MEASURES TO CONTROL EROSION AND SEDIMENT MAY BE REQUIRED BY p C)
Q PUMPS, AND TEMPORARY FLEXIBLE HOSE. I�1`�l / �; / • ( I ( M O \ / / O^ / PZ • .`."'\`.- BASIN #2 �.`.`.�..`-� I \ r off, � <-- ; � DB A REPRESENTATIVE OF THE TOWN OF CLAYTON. Q 0 .. z
Cl o (DOWNSTREAM IMPERVIOUS DIKE FIRST). / / 2.5 SKIMMER WITH ` \ v - . - / ,o / ', . ,n. ` '/ 11k3F F (D
a RIP -RAP OUTLET PROTECTION I/ I ti/ 3 i( l G TEMPORARY J / 3 "-`- l - " I I ' '�F '` P o Q O cv
-i99 �j`L 2.0" ORIFICE \ �/S STOCKPILE LOCATION i' / -`• 3.0 SKIMMER WITH / SUMP FOR PUMP INTAKE N\ 1 13. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT "�' z w w = o
O ° 12. DIVERT STREAM FLOW THROUGH THE / �`�`• -® `' "
// / / W 3 \ O/C / � � •\• ; - • • j • 2.5 ORIFICE 1 ` v' \ PROPERTIES. WHEN FIELD CONDITIONS WARRANT OFF -SITE GRADING, PERMISSION ^ Q -
0 CONSTRUCTED CULVERTS. / / / 7S �/ T/ J0 / / 0 ` - - +� . `I. `. `. `. `. -; / U \ , � \ \ MUST BE OBTAINED FROM THE AFFECTED PROPERTY OWNERS. o >- o
o -* �� 1 O / nr �o IMPENETRABLE z 0 w
z - DIRT BAG / y �,, / \ A O- 7 'L 1 / %- 3 P� � � LIMITS OF PUMP AROUND WORK. REFER TO STREAI Z 0 w w
13. REMOVE DIRT BAG AND PROPERLY DISPOSE OF / // / \ \ ` ? '1� 1 / • ;, -:L-.`.'•�.�t / DIKE (TYP) cv zttz
U .NCROSSING CONSTRUCTION SEQUENCE THIS SHEET F 14. SEDIMENT BASIN SLOPES SHALL BE STABILIZED AND SEEDED IMMEDIATELY AFTER O -
CAPTURED SEDIMENT AND DIRT BAG. / / // > DA-1 \ BASIN 1 1 \ O 0 CONSTRUCTION. = w Y
z o / # \ ti - / \ DETAILED INSTALLATION INSTRUCTIONS. w
STABILIZE DISTURBED AREA WITH SEED AND _ \ O ��� 6' -�i�
o .� DESIGNATED AREAS TO BE � ,Y _ 2 - / \ \ \ � O y p - - - \ \ WOOD`. t� \® � � � �
MULCH. PROPER REMOVAL OF DIRT BAG , R/�W / / 5. 84 -S / - - - \ I - 15. INLET PROTECTION IS REQUIRED FOR ALL INLETS LOCATED IN THE WORKING AREA w ~ �
n a STABILIZED WITHIN 7 DAYS /� / \ 7 \ \ \ \ l / - 308- _ `. \ I v�
o SHALL BE CONSIDERED A SITE SPECIFIC � 3 / \ 8 3/) \ \ 3 �7- / / / - -3 S - CR AND REQUIRED UNTIL THE SITE IS FULLY STABILIZED.
W � CONSTRAINT. ,<r\ �\ � / ,-23 // \ \ • � \. \. .- 'W 1sr \ / / 8: & / " / /, -- 0 -•• 0 / < I ��F �
TEMPORARY EROSION / j J \ EXISTING TREE TO REMAIN UNDISTURBED " \ \ ` - / y0� / 0, _ _ \ \� \ =�.`• ( I \ \ \� SUMP FOR PUMP INTAKE \/�O 16. CONTRACTOR SHALL TAKE ALL REASONABLE MEASURES To PREVENT TRACKING ; 0
3M CONTROL MATTING 14. BEGIN FILL OF ROADWAY BED AND INSTALL , / / \ •"�� �,30- \ \ \, \ � \ \ \ �� 3�- •/` / / , � ,5 \ \ `\ \ I 3 �. - I 90 MUD/SOIL ON ADJACENT ROADWAYS. ANY MUD/SOIL TRACKED ON ADJACENT N w w
/ \ 1 / / i i - \ �'o B �` 11 ROADWAYS SHALL BE CLEANED DAILY BY THE CONTRACTOR. CALL NCDENR TO O z0
cw -) UTILITIES AS SHOWN ON THE PLANS. / 53.00 CRITICAL ROOT ZONE• \ \ \ \ \ 6- DEWATERING PUMP (TYP)
Q o �. / / "� \ 'v, 07g -, \ 0' \ TEMPORARY DIVERSION DITCH #2-1 \ \ `- q �� L ADVISE ON START DATE AND SCHEDULE APRE-CONSTRUCTION MEETING. w
_ \ \ \ \ \ / BOTTOM WIDTH = 1 FT �� \ \ - . 1 O w
w - 3 \ I \ -.�-.. �.`.` Q
25t \ TEMPORARY DIVERSION DITCH #1-1 0� / / SIDE SLOPES = 3:1 \ 0 . \ Y 17. GROUND STABILIZATION MUST OCCUR WITHIN 7 DAYS ON PERIMETER AREAS AND w
C Sediment Basin 5 vAo/ \ \ BOTTOM WIDTH = 1 FT \ ` \ DEPTH = 2 FT -- \ �� .`I ��/� r` '.gyp`.` ` ' SLOPES GREATER THAN 3:1; GROUND STABILIZATION MUST OCCUR WITHIN 14
11 _
r7 � \ \ \ \ / \ / ^ \ Q . ` . c . / / WORKING DAYS ON OTHER AREAS. N
TEMPORARY CULVERT � SIDE SLOPES = 3:1 \ / LINING = NORTH AMERICAN GREEN \I \ ` . . `.V . `� / I �
U DESIGN INFORMATION f 3 (\ . ;� \ / \ \-I� �' \
78 LF OF 15" RCP � 1 � \ DEPTH = 1 FT I I \ �0, O� ` / / 9 SC150 OR APPROVED EQUAL � \ \ \ �,,, , / \ / ` . `. `. `. `. I 1 I 18. ALL PERIMITER DIKES, SWALES, DITCHES, PERIMETER SLOPES, AND ALL SLOPES
- o TOTAL DRAINAGEAREA 24.18 AC INVERT IN = 323.00 1. LINING = NORTH AMERICAN GREEN I . ,30 / '5' � \ \ -7�� �
° �yi \ / A / / I I \ q,:• - -` `/ STEEPER THAN 3H:1V SHALL BE PROVIDED TEMPORARY OR PERMANENT
0 TOTAL DISTURBED AREA 24.18 AC INVERT OUT = 322.00 ^, \ \ \ SC150 OR APPROVED EQUAL j I �z \ / ��,\ I / \\ \ / � O - ✓ )
-C ° O� . \ ( I � w �° \ / TEMPORARY DIVERSION DITCH #2-3 �, \ I y STABILIZATION WITH GROUND COVER AS SOON AS PRACTICABLE BUT IN ANY EVENT
In � TC 5 MIN CONTRACTOR TO ENSURE 12" OF COVERT i' ` � -7 1 \ / \ 11 / _ WITHIN 7 CALENDAR DAYS FROM THE LAST LAND DISTURBING ACTIVITY.
\ \ \ N \ \ / BOTTOM WIDTH = 1 FT \ \ \ I \ / - /
\ I / � / - \\\\III111/
0 1 RATIONAL C 0.50 0 /� \ \� \ J ` �• �\ \ \ M \ \ 1/� \ SIDE SLOPES = 3:1 ^ \ \ \ I\ N/F �� ��i �
a- ° ��oy /% N 1 32 _ 32 1 \ \ \ - DEWATERING . J JASON T MERRIMAN, ET 19. ALL OTHER DISTURBED AREAS SHALL BE PROVIDED TEMPORARY OR PERMANENT \�1 \\• CAR \o \
�, DESIGN STORM INTENSITY 7.39 IN/HR ;`/ h �, I 1 DEPTH = 1 FT I I I I (I // PUMP (TYP) / / TEMP. FLEXIBLE STABILIZATION WITH GROUND COVER AS SOON AS PRACTICABLE BUT IN ANY EVENT ���� � \ o\
(n ° 5F w CONSTRUCTION S \ 4� N \ \ ( , DA Z LINING =NORTH AMERICAN GREEN / ,� o, / / PUMP HOSE (TYP) / NC PIN 164800-83-2 �0 • �FES / �\
/ / 3 v' \ ,�/.- ` # WITHIN 14 DAYS FROM THE LAST LAND DISTURBING ACTIVITY.
C) PEAK FLOW 89.35 CFS �\ _ \ /. ENTRANCE I �,, w \ 6.95 ^'o SC150 OR APPROVED EQUAL \ \ I ( - o� / / - / DB 5286, PG 184 - ;Q� G
- �1 �1 � - \ N , i I \� I cr?) I \ PB 88, PG 53 = \� =
DESIGN CALCULATIONS G JO \ � \ N -� V\. / / S\ ~j I I I x
i \ \ ` / 20. DRIVEWAY PERMIT FOR CONSTRUCTION ENTRANCES IN NCDOT RIGHT OF WAY MUST = �LQ SURFACEAREA REQUIRED 38,865 SF //��~0�\ QG �./ \ N CONCRETE l /\ I I \\ 3�6- >s \ \ 312' ��� / i ( I / I J V �p f M �� � �3 - BE PRESENTED AT PRE -CONSTRUCTION MEETING. \Q C
'y' Q ,(-�`L �21. �320 � \ \ WASHOUT \ I \ (p�,N_ \ \\ \ \ "'11 l / / \ DIRT BAG / 1 c \\
UI o SURFACEAREA PROVIDED 42,201 SF /', O .\ \ W \ \ \ - 3.0 SKIMMER WITH 3 I : \�
I / M 3j 21. THE TREE PROTECTION FENCE SHALL BE MAINTAINED ON THE SITE UNTIL ALL SITE \�`- o '
o a 1 O J ` 5 � \� \ \ ' N Z
W \ 3j / / / / / NP / I I 2.5" ORIFICE A WORK IS COMPLETED AND THE FINAL SITE INSPECTION IS SCHEDULED PRIOR TO lam/ CJ \,.-•��
.L VOLUME REQUIRED 43,524 CF q,. / �\ Q OQ�, / - - - 3/9\ 1/ \S` \ \ c3t�` N \ \ \ \ `�\ J I l ( )� / , I I l I / / 37 _ NF ••
VOLUME PROVIDED 129,435 CF / �' \� �.P �o \ \ \ \ \ \ \ \ \ / / �S I / / / ^� I 1 / \3/`s THE ISSUANCE OF A CERTIFICATE OF OCCUPANCY (CO). THE FENCING SHALL BE �- ••••'•�� \�'�
-0 �� 0 '\ ✓ v' \ \ W / l II / _ l 6� REMOVED IMMEDIATELY PRIOR TO THE FINAL SITE INSPECTION FOR THE SITE. Q o OqN
0 -1 i - \ 3 c I \ \ CP / / / II / - 'c ������IIIII\\\\�
ul ° DEWATERING TIME 2.87 DAYS � o / <\P P 0 / - - - 318^ \ � \ v' \ 2S 1 l \ \ \ \ /
0 1 , P .-� Q � ? \ W � ` ( ( \ 1 / / / / r0 /// / / I I \`31j\ 22. TREE PROTECTION FENCING SHALL NOT BE MOVED AND THERE SHALL BE NO
6 SKIMMER SIZE 6.00 IN �/y \G ,/ / \� ` - \ \ \ \ \\ \ \ \ \ \ N��\
\ \ \ 1�� / /�/� I \ 1 / / N i �! �;� / I/ 12� -1-L ( n� / " 3� ENCROACHMENT INTO SUCH PROTECTED AREAS(S) WITHOUT WRITTEN AUTHORIZATION
° \ / /` - -317 \ S \ 3 \ \ \ / \ \ \ `_tij1 - J l l l M / ai /� // �O / I l 8 OF THE TOWN'S ZONING COMPLIANCE STAFF. ANY ACTIVITY (LANDSCAPING, FENCING Z � _J m
SKIMMER ORIFICE DIAMETER 5.25 IN / 1 2 \ O /, "O
\ / \ 5 \ 2 \ w I J / O BASIN #3 Q g --D
BASIN GEOMETRY �� / / 316- \ \ \ 3 , I \ \ I to \ \ \ \ \ - 6 - J / / / ','` /// /�/ v) I I I �y ( OR UTILITY INSTALLATION) SHOWN ON THE APPROVED PLANS IN A TREE � N O
L n, -R/,ral- /L / % - ' \ S \ > \ 2 \ N I , \ / // / /// _� 1 �h I PROTECTION AREA, SHALL ALSO NOT OCCUR WITHOUT WRITTEN AUTHORIZATION O
_a AREA (SF) ELEV (FT) , 1 / / , ' / \ \ 7SN \ TEMPORARY 325 / I \ 1 1 \ I "'� �a / TEMPORARY 315- / // / ' ///// � I / I 319_ - FROM THE TOWN'S ZONING COMPLIANCE STAFF. ANY UNAUTHORIZED O (_
o BOTTOM OF BASIN: 31762 279.0 %� // oy / / / f -31 \ �S \ \ STOCKPILE LOCATION I I I ( 1 I 1 "� - STOCKPILE LOCATION - / - �6// / / / / • k \ I I ^o / w
I ENCROACHMENT OR DISTURBANCE WITHIN THE BOUNDARIES OF A TREE PROTECTION O
0 I I 1 r') -314- / / / "�/ O� 1\ I /o / ( /_/, ) Ofr" <\ m m
/ / / y \ \ 7e \ \ ` / / \ / /� // / I �� y I / AREA SHALL AUTOMATICALLY RESULT IN FINES AND THE REPLACEMENT OF ANY w I\ Q - Q
° PRIMARY SPILLWAY ELEVATION: 42201 282.5 // ^ \ 14 ^ (CHECK DAM (TYP.) \ "rO \ \ `�\ -�2° I I ry I I I 1 / u' -313 "11 / /tiny// i / �_ I I / I I ^ / DAMAGED VEGETATION IN ACCORDANCE WITH THE LAND DEVELOPMENT ORDINANCE. � - o m o
> ° EMERGENCY SPILLWAY ELEVATION: 45311 283.5 �� r7 / I d � \ /G, \ \ \ \ \ / / 1 ^? I I I / / / �,��1"^� \ `�j� �' - i / Off`//� / // / J I I / / I M / ��• I / a w z z Y
0 0 �- � I � ,. � -3 3� - \ \ \ \ \ 3/\ \ 322 � / / / / / / / / / ,� /) f \ - 3 - - - -312 / / - , /,'t�i// ./i J I r I l/I�l l I // lN.) / / / / 23. CONSTRUCTION ENTRANCES MUST BE MODIFIED TO ACHIEVE ADA COMPLIANCE, = O N - 0 3 0
TOP OF DAM: 50099 285.0 ` / 3 \ \ - -323 1 / / / 0 Y Q c5 Q w
i 3 '' / / / `�' \ � / I \ \ - � \ 7S \ \ \S \ \ \ / `c / / / / '5 0� ! -,.3i /l - - - 311- TEMPORARY DIVERSION DITCH #3-2 / �l / / / / „�� WHERE APPLICABLE. CONTRACTOR TO COORDINATE WITH EROSION CONTROL 0 w � =
c� SPILLWAY DESIGN \ 0 \ \ \ 7S \ 32 \ � / / M I / / �j09' / O\ / BOTTOM WIDTH = 1 FT / / �j / / INSPECTOR AT PRE -CONSTRUCTION MEETING co o 0 0
z \ , I ) 312_ � \ S7% \ \ \ / - - -322/ / / � / / / 8 -� i310/ M
EMBANKMENTVVIDTH 10 FT / \ w \ A / / ,�0 �� SIDE SLOPES = 3:1 / / DA-3
E 1� \ \ \ \m -- \ \ - ` ` \ / / (o / / / v �- 3pg, - - A , I , / i / O W / 24. STREETS IN FRONT OF THE PROJECT WILL BE KEPT CLEAN AT ALL TIMES OR A
o - - -� �/ \ \ I W \ \ EXISTING DITCH TO BE MAINTAINED J / / / / / // / 307 - ` 309 5 DEPTH = 1 FT a N N
3 PRIMARY SPILLWAY (RISER) CAPACI 90.0 CFS �� P\, / / c \ \ \ I I \ - 7 - - -321 ^ / / _ - '3 8. _ - - 1 /p6 LINING =NORTH AMERICAN GREEN / / /y`/ /�'\ 3.83 M pro WASH STATION WILL BE REQUIRED.
1' \ 3 AS TEMPORARY DIVERSION DITCH / i t7 p� / / / - O y , / - ,?
a o # OF PRIMARY SPILLWAYS 1 ✓ �Q \ \ I N \ \ . TO THE MAXIMUM EXTENT / I tij'`^tij / / / ,Sp6 - -� -307 - - - 5 / SC150 OR APPROVED EQUAL f / / / 40 /
\ P`' I � \ \ I \ / ,Z ) 312 � - -320 / / I / ^� / / / / / / �- 3p 30e- - - -' \ \, I •1 I ITC � Ct / �f /'yam / / I r%j N/F 25. PERMANENT GROUND COVER WILL BE ESTABLISHED IN 15 WORKING DAYS OR 90
RISERSTYLE/MATERIAL BOX; CONCRETE dr \ \ �, I PRACTICAL / / / \ / / / v MATTHEW R POOLEY, E CALENDAR DAYS WHICHEVER IS SHORTER.
I \ \ > 1 1 I I �o \ . � �� _ _ / / / t;-�, / /.- -' - _-_�_ 3 \\ \\ \✓�II I I I I<< / / / / / / ,�, / _ Z
L RISER SIZE 8x7 W L (FT) / \ \ , 1 \ 1 I I \ 311� \ \ \3 \ 8� - .31g / /l //// / 10f TEMPORARYBOTTOM WIDTH VERSION CH 45FT - - / My ~ / \��\ 11 I III/ r 1 / '��// A3' / M / NC PDB#44248 PG 8 16f O z
n ° BARREL MATERIAL CMP ) \ Ip \ \ _� ( l \ \ \ \ 7A� \ -31) -- - - - 318 / / / / ,y.� , N \vim \ �\ - J ,
o ° BARREL DIAMETER 48C IN SI \ 1 ) CD I I M / \ \ 370 \ \ \ \`37 \\ \ '3 \ � - _ - -317 /j / � // � SIDE SLOPES = 3:1 � - 29 \\ / / / tl / / ' Off'
!n DEPTH = 2 FT-302 / / Q
L \ O \ / 1� I I I ) / I --. � 3` /�' 16'/ ti LINING = NORTH AMERICAN GREEN / - -- `�-. "999,� , f \ �// TEMPORARY DIVERSION DITCH #3-1 �g / /1
0 o BARREL LENGTH 115.0 FT 1 I I / / \ `3°g, TEMPORARY DIVERSION DITCH #5-2 _ - �p� DA-5 �/ 9 . �,• BOTTOM WIDTH = 1 FT � J
0 ° BARREL OUTLET ELEVATION 278.0 FT \ / / % I M / �o I \ BOTTOM WIDTH = 1 FT / 5 �� / / J SC150 OR APPROVED EQUAL 301 p0-- 0� ��' \�� \\ \\
U Q/ / / / M / / / \ - SIDE SLOPES = 3:1 �/ // 0 24' 8 / / \ I I " --� 2 9� / ,\o I/ SIDE SLOPES = 3:1
BARREL SLOPE 1% \ / to / / i 8• _ / / / •M / / / 4O I \ I / / 2g6- Ia / / I LINING = NORTH AMERICAN GREEN c / I , O 0-
o /
o .�° ■ (D�A -- 6 / I M / % N / / \ \ \DEPTH - 2 FT / / / 'S p / / / .� 1 \ / / 95 . `. . �1 SC150 OR APPROVED EQUAL / // •
0 •� ANTI -FLOATATION CONCRETEREQ. 89.69 CF \ / I / �� / / / \ LINING =ROCK RIPRAP PROTECTION / / �j1 p. / / / - - ) I 1 50' JURISDICTIONAL i / '2 �� ` / yi I I I t,,
a EMERGENCY SPILLWAY LENGTH 86.0 FT 3.75 I _ N / / / / o / / '30j TYPE / � to � / \ I - / fl / ^ I 1 � a J
_ / / M / \ v ' / �0 / �/ p5 I 1 I STREAM BUFFER -- • - ,. /_ , 1I . I ^ / NORTH
� 3 / L . /- . SUMP FOR PUMP INTAKE M I ' ' I O
° EMERGENCY SPILLWAY CAPACITY 91.2 CFS M r\ / / ` \ \ ` � 317 // / tij0 / o 7 , ,��? I 1 W
o // y1 / / �,� / / / /�\ `3°8 ���� 31G - / / i yp6" / ��O"� I I \ / /� N ��\ '/ �'/�i .S ))„r /� I / �ryo \ �,
I
V-
>' / / / / ;� / ��� `�°6 • \ - \ _ - -��a _ / ///. o� / /^� 0�1 I I / i/ / ��, I IIIIJ/��t 1 / �' l \ ( 1
C) >, / / \/ � / �CLEANWATER DIVERSION DITCH \30" / / / < `' 1 / /I ,- ^� / '� / / \
z � 'S 1 // / �'-�7� I I
o - / / / \ ► l ,- O 1� /I1 / l �'` I I GRAPHIC SCALE IN FEET
JI o / \$ / \�^0 / / BOTTOM WIDTH = 1 FT - - - LIMITS OF PUMP AROUND WORK. REFER TO STREAM / I I I / / / / / /////o /III / /" / / / ,, 1 I I I 0 50 100 200 Know what's below. I I I
�..5 \ / SIDE SLOPES = 3:1 �,306 _ CROSSING CONSTRUCTION SEQUENCE THIS SHEET FOR I I / M I / w LA I I I W
o / DEPTH = 1 FT - DETAILED INSTALLATION INSTRUCTIONS. 30 0 / / / / H • . • .. / �� / ///I //J _n I � l ,/ N N
i - LINING = NORTH AMERICAN GREEN - _305 \ ,yp`O / 5�y ti0 cb / // l/ ° ` i/- M o,/, // I I °' o l i�\\ 1 \ C° - �' I C1II before you dig. C) z
1 a)/ \ SC150 OR APPROVED EQUAL ` - - - r , j / °� / / // '/ // // ^zr / "� N� cv \ \ \ °' O
N \ \\ / \ / , " kxx - -INSTALL SANITARY SEWER CROSSING AND STEEL � / / / / �l' 0i / I / ( I ) /'//�" ,i ... ////'S'/ I S' 1 M I � 1 `� N \ \ \ \
\ / 05 �F 0� ENCASEMENT PIPE DURING PUMPED DOWN 5 / / / ti0h 1 / /('1/ / I I I I I I w I ' I I N \ \ \ U1. \ \ \ ( \' LIMITS OF DISTURBANCE: ±55.00 AC C ,
N .� \ / \ 0a / OPERATION FOR CULVERT INSTALLATION. REFER , - ��300 / / / / ISO 8 ( / ///4 III u � j// TEMPORARY DIVERSION DITCH #4-1 \ \ 1k ` \ \ \ % = v
-� / 5 _ I'll I (� - , - -302- TO DETAIL C07.02 ON SHEET C8.6 / / P '7 / /a' co BOTTOM WIDTH = 1 FT r'1 \ 1 \ N/F
\ / / \ / ' / / - \ I , I 1 I I I �� \ o MATTHEW R POOLEY NOTE:
- I o / / -299 / / / o I I �I I I I 1 1 \ \ I SIDE SLOPES = 3:1 \ \ \ \ o, ALL CONSTRUCTION TO BE IN ACCORDANCE WITH
3 \ / \ / / ^/ - -301 - _ / 2- ^ i - -301 /�/ _ i .T / /// / / / I I I N . I I I I o� \ \ \ (•LINING =NORTH AMERICAN GREEN N \ \ NC PIN# 164800-8'
i
w DB 4421, PG 7 NCDEQ, NCDOT, AND TOWN OF CLAYTON
/ J / 2°' . / / - I \ N \ \ \ STANDARDS AND SPECIFICATIONS APPLICABLE. IN
o C 5p� C4 \ 0� ,-�o O '°\' 1- - - p / / 96 , / / / 1 1 I I SC150 OR APPROVED EQUAL -- I
o / O o>i -300 ` - -30 /_ g°� - _ / 2 y / / i I I w1 1 I W 1 1 \ THE EVENT OF A CONFLICT THE MORE STRINGENT
o \ / J / \ / / / - - - \ �/ 300 / % �`L�1' / / /� 2� L / / / l D ~ (% I<v I \ o o \\ \ \> \� \` �\ \ \\ / tv o to, \ I I 1 STANDARD SHALL GOVERN.
N \ \ o / 2 9 , / / S � wl \� l \ \ w�v\
v c - / \ 60 WIDE�LED1�40�-PdATU�rA� - / / i b:� �. 1 x \ \ \ m\ , \ \ \ % \ \ � / ^o . �j1
C _ _ \ / ,\ - - \ 9g� - G/\� ANY EASE •�v� PER 296' / i / / Zg9 ' i. `�2 \ /
/ \2 � / / / Ga`' J 2.0" SKIMMER WITH \ ,32�. - / / 0
PHASE 1 CONSTRUCTION SEQUENCE ^, - / 2g -, _�01. WCOL� / S BASIN #5'//// /r��' -�� \1 _I � 1.25" ORIFICE DA-4 °
a -� \ �-------&.L -- 9,2-- �29� / / / // ,:`.`.`. :� _ n I col 1 \ I \ \ \ \32 / / //
1. SET UP AN PRE -CONSTRUCTION CONFERENCE WITH TOWN OF CLAYTON STORMWATER ENGINEERING TECHNICIAN TO DISCUSS / / - �l yam• I I _ BASIN 4 \ \ �� 3.73 ,moo, /
EROSION CONTROL MEASURES. ` / / `' , / 1 - # \- - \ - - _
2. INSTALL TREE PROTECTION FENCING AS SHOWN ON PLANS AND CALL FOR TREE PROTECTION FENCE INSPECTION BY TOWN ' � I - 2g 6_ - - - 7'x8' RISER / , ' �0' / / / / . -. - • :I / �J' _ '� \ ' \ \ \ o 1\ 0. �^
0) 29 ,290 / , / / . 2ro / / / ,gyp W . W DIRT BAG \ I / 7) \ ` '319"_
OF CLAYTON SITE INSPECTOR. TREE PROTECTION FENCING MUST BE INSTALLED AND INSPECTED BY THE TOWN OF CLAYTON ` 2918 �- _ _ _ / r19 / - . ` \ (TYP) \ \ \ \ \ \ \ \� \ \\ \ " - - 318 - / /
SITE INSPECTOR PRIOR TO A GRADING PERMIT BEING ISSUED. ry4�Q7� - - - = -d. U \ N • �'' �" \ \ \\� �� 376 - 317- - �pt/ /�
/ 290 290 -y - -\' irk . ` - ` - � o o_ . \ ^�6" I \ - z, S ' N/F
3. OBTAIN GRADING PERMIT FROM THE TOWN OF CLAYTON. O \ \ TEMPORARY DIVERSION DITCH 4-2
^ 2` 285 285 \ .m 1 \ ` \N ``-y\ BOTTOM WIDTH = 1 FT # SEPH CHRISTOPHER JO
4 INSTALL TEMPORARY CONSTRUCTION ENTRANCE PERIMETER SILT FENCE AND CORRESPONDING SILT FENCE OUTLETS CLEAR /' 280 280 �l3 - ` \ \ \ \ I \ \ / NC PIN# 164800-8
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-- Q r� - /� _ / - - /. \ ` \ ` \ \ .SIDE SLOPES = 3:1 •3 /
ONLY AS NECESSARY TO INSTALL THESE DEVICES. !rq r7l ` ' Ar S.<` - 32 - % - -291 / / - // �l• / � o• `� \ \`��\\ \\ �� \ \\ \ `,DEPTH = 1 FT - / �/ DB 471 1, PG ; Q LL
D 5. INSTALL ALL REMAINING PHASE I EROSION CONTROL MEASURES INCLUDING INLET PROTECTION, SKIMMER SEDIMENT BASINS, qti/, y /�e �rI �'v _ ??80 - - �9 / / , \I `• W ,< \ V ,.! \ \\ .� \ \� \ 2 N LINING = NORTH AMERICAN GREEN - - 6, � PB 82, PG 2: J 7
AND DIVERSION DITCHES, CLEARING ONLY AS NECESSARY TO INSTALL THESE DEVICES, SEED, MAT, MULCH, AND ANCHOR 'S'F,q y'-7r y,/ 0, / ?98S ,28 / / �1� • �• ' • 1 \\i90 \\29\\ ��� 2 \,SC150 OR APPROVED EQUAL - I L n/ v
DIVERSION DITCHES AND BASIN IMMEDIATELY AS APPROPRIATE AFTER INSTALLATION. REFER TO THIS PLAN SHEET FOR �63 '�RO'�gA Ty 1 �`L X J g j \ \\ `�`+`� \\\ \\�\ \\ 292 g \ \�v00'\ \ -- /� w L.L Z
5 INITIAL CLEARING LIMITS. 8S6 M pe BOO (iB� r / / `L 1 / / / \c� g \. y��',. \' \ \\ \`2\� rya \ \ \\ \ _ _ _ _ - - / I 7 C Q v_J
0 6. CALL FOR ON -SITE INSPECTION BY TOWN OF CLAYTON STORMWATER ENGINEERING TECHNICIAN ONCE ALL EROSION CONTROL SQ F SS 7 /c yA / T \ - �'�� - •� `-` `� -�' ` - A e `404i%.;6�,- \\ - 3 -- - - / L G
' `S p °G' may' �'O ` - /l - S� \ - ` . . P \9 \ _
MEASURES ARE INSTALLED PER PLAN, OBTAIN CERTIFICATE OF COMPLIANCE FROM TOWN OF CLAYTON. ry ,:J( ' `�`:"''� �� I A � 306-- 0 Town of Clayton w z
5 7. UPON RECEIPT OF EROSION CONTROL CERTIFICATE OF COMPLIANCE, PROCEED WITH WORK AS OUTLINED IN CONSTRUCTION •6S 76) I NS (/,Q/ �\ _ \�` 8 -7Fi\A �\�\ \ - /�O C W Q O
SEQUENCE. �0' \ TR�/cS0/CM ��\� ? .�.�;.+ �w`.�:�28�`J. 'r \`0p'�` \ �304 -�-!� /// 12g1 1)1) G O 0 >-
.' • -. . Approved for Construction
8. INSPECT AND REPAIR EROSION CONTROL MEASURES AFTER EVERY RAINFALL EVENT OF 1" OR GREATER OR EVERY SEVEN (7) ��1TFOA°�q I /" _ /••• '� / `+ �'�' . .+ �'t' r; 9N x s1p \- - ��---/ / 6 J Q
- CALENDAR DAYS FOR THE DURATION OF CONSTRUCTION. �\ �' // ,r- 280 a E- .`� ` f F` `I;'�` ` - \' • •�, .- ,�`.`.'. . \ \`�L`',y`\ "301 02i' /4,_'"•" "���` J w U
Si nature: Date: - U
9. CLEAN SEDIMENT BASINS WHEN ONE-HALF FULL. / ,� -- - - ? - rL• N ° `L°�� / / Director/Ajr4issistant Director of Engineering
>
/ L- 277 .`.�.` `. .� �.r S& `Ir`-`•� \(.V- 98-t' g g Q LL
u 10. SEED AND MULCH DENUDED AREA WITHIN 15 CALENDAR DAYS AFTER ANY PHASE OF GRADING. ( l \\S, I g� "�Ci �/. -as/ •�•(�1�:• 29? I. J �rlir imI�t. ,� w O
11. MAINTAIN SOIL AND EROSION CONTROL MEASURES UNTIL PERMANENT GROUND COVER IS ESTABLISHED. \ \\ \\\ ��Z��,_-: J /\, ` �''-- cv r' �✓` *F •�'-�� • •••• +��••• `,`'� I Qs \\ ` ,1. / / =�2 .� --,- . `. `. -_ j t . J• ce < Signature: Date: z
12. BEGIN CLEARING AND DEMOLITION OF THE EXISTING SITE AS SHOWN ON THE DEMO PLAN. IF ANY ACTIVE UTILITIES ARE �\ \\ 9� - 2 - - -=--.3�`.`.-•-. `� `y. --,\.+ ` i./ -. . U
1 l - / - a_ - / i - =_ • rL 1. . .� . / ✓ . Planning Director
ENCOUNTERED ON -SITE DURING DEMOLITION, CONTACT THE UTILITY PROVIDER IMMEDIATELY. I/ / - / / - � - 8g= g0_ _ - • . . . • •. ` -19 -
13. REFER TO STREAM CROSSING CONSTRUCTION SEQUENCE FOR CULVERT CONSTRUCTION. I `\, -es- - / _ S _ J�/ . g� � ,-/ � !% - _ _ _ ��Z -- -• - - Town of Clayton Engineering must be contacted at a
14. BEGIN MASS GRADING AND INSTALLATION OF REMAINING STORM SYSTEM AND SITE UTILITIES. INLET PROTECTION SHALL BE 0 _�/% '_ / /�� � 2g2_ �= _ 29�� =�--- ���\ `. - •--0 . - `� ``--j` minimum 48 hours prior to the commencement of
3 � - �_ + .
INSTALLED AS STORM DRAINS ARE CONSTRUCTED. CONTRACTOR SHALL NOT LEAVE OPEN TRENCHES OVER NIGHT, ALL OPEN 8S � 8S� / //2�i / / - j4p/ � ------ - - -7o� _ � ���„- .-ta`'.;� ,� . ` - construction activities. The Town of Clayton will not be SHEET NUMBER
' TRENCHES SHALL REQUIRE WOOD SLATS ON THE UPSTREAM SIDE TO DIRECT WATER AROUND THE TRENCHES. ADJUST r� /�- �� - - - -^^� \ - - / �� responsible for errors and/or omissions on these
GRADE OF SKIMMER SEDIMENT BASIN AND TEMPORARY DIVERSION DITCHES AS NECESSARY TO MAINTAIN POSITIVE DRAINAGE.
approved set of plans. U 3 .O
SITE AREA DESCRIPTION
STABILIZATION
TIME FRAME EXCEPTIONS
PERIMETER DIKES, SWALES,
7 DAYS
NONE
DITCHES, SLOPES
HIGH QUALITY WATER
7 DAYS
NONE
(HQW) ZONES
IF SLOPES ARE 10' OR
SLOPES STEEPER THAN 3:1
7 DAYS
LESS IN LENGTH AND ARE
NOT STEEPER THAN 2:1.
14 DAYS ARE ALLOWED.
7 DAYS FOR SLOPES
SLOPES 3:1 OR FLATTER
14 DAYS
GREATER THAN 50'IN
LENGTH
ALL OTHER AREAS WITH
14 DAYS
NONE EXCEPT FOR
SLOPES FLATTER THAN 4:1
PERIMETERS AND HQW
ZONES.