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HomeMy WebLinkAboutSW6130202_Grading/Drainage Plan_20130212I I I. I • 198.5 '' 198. 1979 1 1 \ ` T- NV=1Bib1 /wit _ .__ --- - - --- --- 193.,-I-,92A \ 1 / ( NOTE: Z W p z w UJ N I 1 -ZONED R-12 + ' w ►- x w I g \ \ _ _ _ /F,e4A ++•9 \ \ 1 / \ CONTRACTOR TO SAVE SUFFICIENT TOPSOIL ON SITE TO BE W. O ¢ W w co m 4 191 a - RESIDENTIAL +�•g ' i a9 1 \ \ / - / RE -SPREAD AFTER GRADING IS COMPLETE. HAUL OFF ANY �'� U m °- t_ O O 0 rJUN JUNCTION Box ( I \ �� 194.a +19a9 1 \ \ 1�g to O O >- F- w / I ��� _ 1 ,9.7 + £� \ \ / . / - - \ \ EXCESS TOP SOIL. m co V � z co x 0 m m x ¢ - TOP ELEV t9825 1 i SEESHEET t SS FOR DETAILS I 1 \ \ 2a• RCP ,9ss��� - +1952 \ PES 195 _ ' / \ / 11 ��� ,gsa / Z LL Q ~ O Q Z m Qa -- -�- 195A - - - Z i � T 195.7 IT PV _ / 1 > - - - - _ ' _ ��� _ _- _(_ 1 LEGEND 3 0 0 z o o LIG ..y �. 1 1 ° . '� �112"HDPE --. , 1 / / - _ - - �--1�•0- (1/- NV=194.,0 W 0 qq - \ f9g - L =- / ■so 1■■•"■ ■ •"■■■■D �� Jl tsHOPE \ 4iAP� 195 - _ J 195' 19a -193' ' ' -- - - _ 190E-- = = - - - 1192 - - f \ 1 �1\Ill EXIST. CONTOUR i "/ y LU W z W Z Nv ,ez:75 198 - 194_ - - = 1 am-- _ _ 1 \ 1 X ,$ I I I i F a1s.e = O z O w ZTFES IMKP ' - -- `' \ I I EXIST. SPOT ELEV m Z Q � m Lr INv=19592 1ea8 $ 99.e �r \ `,yp� -J 1999 1 i 1 ep�� G�F4-�r�_ 4L ,9z.i ' \ \ - 1 \ 1'.. �% III +1955 a w CIL _- a15 ,93.3 - -\. 190.7 I PROP. CONTOUR 4F uw✓ H cc WA i I // `, I j ,94. �� `� f t95 I \ 74r• \ \ \ t9o9 + I w m r/ 1 - _---/E` VENUE■p s,1 R S L F CUR U 4 PINEWOOD A s� 1 � \ '`qy, t - t � � I \ \ ++ez•s �c _ 1 I 'I � I I POP. POT E EV. (BOTTOM O B OR GROUND) �3021 � N m n o ■". 1 497 / �n-� 93.7 1 - W PUBLIC RIGHT OF WAY ■ J _ I / \ 196 \ 1 ,gas - . SPOT E P OF CURB) .14 \ +1 \ \ PER SLIDE 173 PLAT W ■. - \ %.P I ��. BW:199.00 7 +1955 \ \ - • 5 \ \ \ 1 9t \ \ I I I I PROP ELEV. (TO RB �-302 O a � � n 1987._°•'-I \ 1 M M m ...� 197 ,, a9a \ A \ -I I 1 1 - PROP. JUNCTION BOX - > > N _ -- i�` 1 I �...-= - ° � �I t9 '� t99 _ `z:,�.. • t� �, \ \\ � Ix"„ 1 jj1 I1 C.� Z m Z v, �___a»- ,99A ■ i FE i 11'/ 1 �a m.5-"Re Re / � 20t f.. 201 \\ Rs� \\\ \\ \\ I llm \\ !\\\I11r \\ PROP. CATCH BASIN Z Q W ti • \\\ PROP. FES v 24•gAP .\...\ 118� I BWa98.1t. M. J - \ .1 \ -.. \ +192.7 \\ 1919 1 \\ `� \\\ \ m. m � INV-t93.82 \ 1 BIN'.197.82 I 1 7 1 I • \ +193s \ \ ,ep 1 It \ O ... I ` 11 1 I \ t99a 19Bs \ I I BW:198.1t 5 1 lass \ 1% rn PL J I I 1 I I +195.3 \ \ / ly `�'\ 1 \ \I \ ` PROP. DRAINAGE SWALE m WL -WL--. - -19! �,� �.. y. 2 7 \ 196A \ \... \. / IP , \\ Q Q _ 1 I I I I 1 '�- - i - �� .. . ` ,97s \ .9 \ \ \ \ I_ I l \ I 1 1 \ PROP. DIVERSION DITCH DN> >' m I L1 111 ■ �J /: +1e7 19Z7 \ \ \ \\ \/ x I �I I 1 11` m M U 0 I \ 1 i 1� - + f9 •1 \ ROOF DRAINAGE \� ' - \ 1 1 / l .`I I 1 l ` PROP. SILT FENCE SF LU M 1 1 1 ■ i I ge B - I CONNECT DRAINS TO STORM LINE \ ,92a 1 / / \ \ \ \ i ♦ n. I II I tee. • _ • 1 ' • _ \. \ + 1 / \\ \\ PROP. INLET PROTECTION 1 O I I III ,gas ,992 : • ' , - CO-2 TO CO-1 +1933 \ I g I � /C : , : - \ \ I (SEE DETAIL ON SHEET C� +19as \ 1 / 1 I I 1 1 0w20o z5: PROP. LIMITS OF CONSTRUCTION ® LOC 111'I I IIJI 199.7./ li 1-88---. •T.-_i'�e--� ,. i `�� : • -... \ 188.0 1\+189.8 I19g.0 \ \\ \\ _ (\ \ ;\\.' oAC \ PROP. COIR MESH BAFFLES IN SED. TRAP �� BAF 1 I o01 ; 200A3 . t + \ \ \ -197 _ +197A , +, CFE 2\01 701 z - �� ts7d p. / i 1 I \ \ ,927 m , o 1 11 I I R $ I ,872 \ \_L. \ +192.7 I O Z \ 4• ALUMINUM SQUARE DOWNSPOUTS WITH 12• X 24• CONCRETE SPLASH PADS Z " L ItII TOP:197.75 / .70• 1 I p 1 • \ +194.9 h� o \ � _ 0 In \ ® (CONTRACTOR TO ENSURE POSITIVE DRAINAGE FROM SPLASH PAD TO PERIMETER Z � m INv 1 1 ' \ \ s`� 200.92 201.20 I 1 +,e5s +1952 \ \ \ \ / / �$ C) \ DITCH). - w W c 197.0 -094-0 B312 fA - w IRISH BRATCHER PICKETT I I 1 j I I \ +1 s +19es y 1 I ® BoRE II II ,:' �\ \ 2 �< rn \t O Z V WZz DB 356 PG 842 11 I/ j 1 M W \ / I \ \ +194. 19M O C _ 0 Z g V C a SLIDE 366 PLAT 1 1 1 I I 2002 DI II 1 ®� 3 / •f" (BEGIN3%SLOPED I \ ,95A + , � �°w\' GENERAL GRADING NOTES =Z� wL, $ g 1 \ 7855 \ 1 1, J o '- •,• SIDEWALK E7�08ED \ \ + \ r ) QZ LOT #9 WW III rl o GRATE:198 00 / : • FOUNDEN \ \ \ }Wass W� \ m \ in 1. LAND DEVELOPMENT/EROSION CONTROL INSPECTOR TO BE GI1/EN 24 HOURS NOTICE m W Q V J ZONED R-12 III I ( k I 1 ,, g +19e.4\ +,97 \ \ - - - - - - - - \ \ \ �j i0 PRIOR To START of coNsrRucnoN. € VACANT I I I 1 \ \ / 6 +, +t �s \ \ \ (0-01NE!A97.81 . '"' '- -.� \' j f9q ! r \ \ 2. THE CONTRACTOR SHALL MAINTAIN EACH STREAM, CREEK OR BACKWASH CHANNEL IN Q LL I I \ 8`PVC - - 1 -� \ AN UNOBSTRUCTED STATE AND SHALL REMOVE FROM THE CHANNEL AND BANKS OF THE 98s / .\ - - I-1s3.5 \ STREAM ALL DEBRIS, LOGS, TIMBER, JUNK AND OTHER ACCUMULATIONS. m ^ /,,n R \ 1942+1 �\ F I 1 \ i� `p - - \ + +196R \ \ 1 \ 3. PE SEALED SHOP DRAWINGS FOR RETAINING WALL(S) MUST BE SUBMITTED TO CITY 2 - 1 1 J I ' i 200.5 _ 2oo a \ / / • d • \ - ., •. : • ` 19r _ - _ - - - +196.9 - - - _ - ,9es _ - _ \ \ \ \ \ ENGINEER PRIOR 7o CONSTRUCTION. 0 :'• _ ,97A. i I I I I a 7 ! .. • .. .' : \ a +1973 \ 1 \ 4. APPROVAL OF THIS SITE PLANTS NOT AN AUTHORIZATION TO GRADE ADJACENT ,n 1 1 I I W O I` / PERMISSION MU 3� + i ..� ,e9.�•. t9g.a7 ' . 1. \ \ IRS Ix \ PROPERTIES. WHEN FIELD CONDITIONS WARRANT OFFSITE GRADING PERMI MUST \ +�-•� 197 \ \ \ III \ ,\ BE OBTAINED FROM THE AFFECTED PROPERTY OWNERS. Seal ♦, , Is ,. 16T OF 8" PVC 0 50% +. of_ ` �1 +1 9 I al0 ' 1 / +1g°2 o o 198 - 1 7ig4,3 S. NONSTANDARD ITEMS (e.: PAVERS, IRRIGATION SYSTEMS. ETC.) IN THE RIGHT-OF-WAY • N C%(l �O 3 I t / \ 200,g2 \ 1 \ 18e•7+ 1 \ \ REQUIRE A RIGHT-OF-WAY ENCROACHMENT AGREEMENT WITH THE NCDOT BEFORE ♦ Q��••••••••• % 198 - - - \ t96 �1 \ \ INSTALLATION. :♦20FOF�ss/O1 �.�, �% xpo t' zoo 1 q _ - - ..hh Q' 'y =y �. 1 1 yI 1 A v II - ` / / / E-7 200.92 + ., t9a1 \ \ 7 \ ( \ \ 6. LANDINGS OUTSIDE ALL DOORS SHALL BE SIZED PER THE NORTH CAROLINA BUILDING : a SEAL r = 199 I _ +198.3 S� � CODE (NCSC), BE AT THE SAME ELEVATION AS THE FINISHED FLOOR ELEVATION AND � 2 12557 200.19 200.38---ieea s�\1485'� 1 \ HAVE A MAXIMUM 2% SLOPE IN ANY DIRECTION INCLUDING DIAGONAL .(�'s �y t�• ' / 1V� $ �' - '--• '---sb`- 200.3 -- 20oa -� '7 - \ \. I \ \ •:�'A •'+. (N�:`.•�'�♦.' .1 / I \-ss----�`"- + f \ 7. THE SLOPES IN THE HANDICAP PARKING SPACES / ACCESS AISLE AREAS SHALL NOT �i f ••«•••♦♦ �O� �7 / \ -- 6g_--fig- -�ZI0.3 \ O L.�y 2 .56 - \\ \ �\+t949 EXCEED 2%INANY DIRECTION INCLUDING IN.THE DWGONAL aat T. e4a♦GI I � YYYN... 11-I-t99,a FE I r I \ s5.9+ b..n..• _ _ / - . __ ._ -f- - 197`3 - \ 8. THERE SHALL BE LEVEL TURNING AREAS (MAX. 2% SLOPE IN ANY DIRECTION INCLUDING \$ ' 9 Pvc � \ 200.15 � ]11Y�9itit3_/// - \ l i I p I 4 2°, I \ ( - i- \- ,199.0 +1 \ \ 1 IN THE DIAGONAL) ON ALL SIDEWALKS WHERE AN INTERSECTING SIDEWALK CONNECTS I / I 20,A I I ® „p \ \ \ +1ee.t \ \ WITH IT. I I / F• I BORE-t \ \ I +199 a `�i + - / \ \ \ 1 1 I 9. THERE SHALL BE NO DESIGNATED PEDESTRIAN ROUTES / SIDEWALKS WITHIN THE SITE, + \+tg°9 ry�� \ \ \ 1 f EXCEPT WHERE LABELED AS A RAMP WITH RAILS, WHICH EXCEED A 5% SLOPE IN THE +-{-2°°.7 +200.3 - _ t 61 \ \ 1 \ \. 19 DIRECTION OF TRAVEL AND A 2% CROSS -SLOPE. - / f . 7 �+, 209b , ► - \�\ +108.8 97.9 +,975\ \\ +\ IMPERVIOUS AREA CALCS. 1 3 / 202. \ 19 I \ \ I RE-9 +199.8 - tots / \ � \ \ I �-1ees +,s9.e � \ BUILDING = 8,320 S.F. F0,N-SITEPERVIOUS = 29,075 S.F. Q199.9 90'e\\\ \ SIDEWALKS/GONG, =1,149S.F. =49,488-SF 200 + 199 1 'J\ \ \ \ PAVED AREAS = 19,606 S.F. PERVIOUS = 68.8% 1 e UJ Z Z 2°tg $ \ %L 2oo.a \ 200s / ✓ - - - -- - - - �- hb \ \ \ 98 ' 1 CABLE Ift - \ TOTAL = 29 075 S.F.S, Z O Q LLI a 202.5 20 \\ --- .20D / - I 2000. __ +199.8 _. +1 C \ \ \ - \ \ - - / --� - // Ir /----*•----*4-- \ 2DII- \.. /-� _ .200 �. - --I _..�� `� - 199�-\ _ - _ v (U =- (J� rUj - - - - _ FES 2 r ROP / / / / / / 202.31 l9' 7 \ - \ -- - - _ - +200.8 _ - -- -- - - - - - _ _ - -�-c=- - - _ - - -. - - - - 200.8 200.3 199.7 t� ` O Z _ INV=19720 _ -_ / / i U - - -. +20,9 \ _ - 201.9 20t.5 ro------fO�._-Po-\ Q STOp BAR ' \ / / _ - \- - - - ---------------/------ 2ozo w_._._. - - w- - -- \ v, d 13 Q z 2025 2029 202.3 2022 t' •- N ES \_203 __ 202A 202A �- US HIGHWAY #1401 BUSINESS `�' ui °C Q ___ 3� �rw (� -ro-----.-w-- 202.9 -------- ■ /ter -- ��_ --•° .. -Fe- ------------- 100'PUBLICRIGH \ - 200o A _ _.-F,- --�- - -w- - - _ PG - LV Q zoos N Q � � COMMUNICATION i �_ ?03•�0-._.-w--- �. - - ._ - 20tSr2DI.0/ - r G� ■ MANHOLE-._.._ro--'- I I �(13 ` 2022 201.9 203.1 203.0 - 202.9 y --- �. am o 1 �S i - , ,._ 203.3 - - 2032 - - _.- - - ' 20ta 201.4/-' WL-- -m -. W` _. ■ m --�r203A 1 203.3 / / - 202A _Vyl WL--�L- - - / ✓ S 203.6 _ _ - - �-5 20U � _ WL _-wry---WL- _--_ / / -- g 202.7-vr<__-WL- --WL e \ _ / / �//>w■R���eorio#t� I y,3 2027 ■ 202.9 _ _-WL -_WL - - - f `� -mow_ SC---�'_- - +-• d ■ AI _�- _- - WLI_-- 293A ,:� r_n -^,• _�S____ea_-�•C`---�- --- _� 15'RCP U) _WL --- 1 _-_-w� ---WL 1 \ a- \• �; iNV=197.39 VVL--- ---WL i .�.-r-•.R,. -:, "" \ - _ - -, _ - UTILITY POU - -----wL---------------� CTB H TELEPHC \■ $ I STOP we I .'s,.•xs9.. _ __�---- ` r •. M1;. WnPEDESTAL - / 24' RCP �. I - -..��- , . � � . I a«----•� 5L✓6 / 30Zo Engineer - INV•19923 \ I I >s �• ,�- x i i v-rrT'� i i v UTILITY POLE WITH. :. ..-_._-amr.-:---axr-- _ _ 2 z /z C3 FES i5' TELEPHONE __ _==ar-==_°" •_�•_ UB INV=199.54\ / _-__is--_-T8---�--�. -1 --•' I PEDESTAL .---°Zw-=" _ vC 4' l / _ _�» «• - z�/>�� Drawn By 2/7/13 STORM DRAINAGE CHART Date PROJECT: E. PROSPECT - FDS DATE: 2-7-13 Revisions LOCATION: 1213 E. PROSPECT AVE. - RAEFORD, NORTH CAROLINA REVISED: DRAWING INFORMATION 1-2=13ADD®BNffITOPLM STORM FREQUENCY (ON -SITE): 10 YR. - C=SEE CHART i=7.97 (10 yr.) JOB NO: 487-036 2-211en3REVI8t�PERNCAB,R COMMENTS *' ALL PIPE SHALL BE CL III RCP UNLESS NOTED OTHERWISE. COMPUTED BY. LJB TRUE PLAN CHECKED BYi CTB NORTH NORTH LINE DRAINAGE AREA (ACRES) Q(CFS) PIPE DATA INVERT ELEVATIONS VELOC. INLET/RIM ELEVATION TOTAL PIPE SIZEFROM TOOFFSITEONSIT TOTAL C VAL. 10 yr. W VALUE PERCENT LENGTH - NCH S UPSTREAM DOWNSTREAM FPS (FULL) FT. REMARKS toYR 1ao DI 1 FES-1 - - - - - - WA 4.9 0.012 _ 0.50 129 12 193.50 192.86 1 DIA = 197.00 PVC RS-1 FES-2 - - - - - - N/A 4.9 0.012 0.50 65 12 196.83 196.50 RS-1 =197.00 PVC North +One-WCenlir CO 2 CO 1 0.012 0.50 106 8 198.35 197.81 PVC �b E Call Off Before You Dig E RIP -RAP CHART CO 1 FES-3 1 0.012 0.50 162 8 197.81 197.00 PVC DIA OF OUTLET (L) APRON STRUCTURE Q-FLOW d50 APRON APRON STONE PIOjBCt Number - NO. (CFS) PIPE VEL. (IN.) (FPS) (IN) LEN. WID. (IN.) THICK CLASS GRAPHIC SCALE 487-036 FES-1 - 12 - 3 12 15 9 A FIE 12 3 12.. 15 9 A C5ol FES-3 - 8 - 2 8 10 9 A (0 III >�) i Inch = � tt Sheet 5 of 13 SAND FILTER 71 BEl�nnuDAGRASS SOD ENLARGED DETAILS �� Cr�� SCALE: 1" = 10' OS B 18" CMP RISER larm HOLES @ 4-1/4" ac SOD ON TOP OF SLOPES TTD FILTER TOP ELEV - 197.75 4 ROWS G 3-1/3" ac TOP INV=186.83 S RIP RAP AROUND RISER - CL OU FES - 2 DI -1 (TYPICAL AT ALL BENDS, INV = 196.50 RIM=198.00 1T ABOVE GROUND) 5 - - 20 --- — —— ---- —200 NEW DRIVEWAY -MAY — — — — 199 SAND FILTER J + — MR — 3 199 1L 198 — — — — — — 3 _ - - — — — Y STORM STAGE 3— --- --- ------- 1.4' STORAGE ---- 198 WO PONDING ELEV=187.42 1Y CMP BARREL @ 0.50% —' — — 197 18" :i:. 196 >i.l4i•rrr' '>> 7f:4Y .< .,nuk i 'i`r;�i+'f't. `i* ' •`\`O. ram•.•. tii^ �r +,ate , 188 Zi�dAF`€�pON}iYS�176 4fZw. Y:t Vi!•.l'��Si��'�...—.L.}w�.!•: !}e.44`,R'{!Y .I MI.Y�F•;i. •. - /WTM C33 ...> +Y s..�Y.i.+.l�',Y 195 FILTER FABRIC 0.5% SLOPE TYPICAL SECTION ASHED #57 NE WAROUND RISER SAND FILTER W/ FOREBAY S.H.W.T. = 193.00+/ FILTER FABRIC AROUND UNDERDRAIN GRAVELBED SAND FILTER SECTION ET _ or ON BLOCK 2" (1WO 12DEEEP)EP) 'B-B' PERFORATED 4" DIA. (NOT TO SCALE) UNDERDRAIN PIPE (SCHEDULE 40 PVC OR SLOTTED'HDPE) 8" MIN UNDERDRAIN Ye' PERFORATIONS @ 6" O/C GRAVEL BED (#57 MIN. OF 4 HOLESIROW WASHED STONE) SEDIMENT BASIN CONVERSION NOTES: Z O cc: Z ul 0 Z= LU W ALL AREAS ABOVE THE PERMANENT POOL SHALL BE PREPARED & SEEDED TO PERMANENT GROUND COVER SPECFICATIONS. - W = O Q W W N H OD I— D U F- O O W THE PERMANENT DRY POND SHALL NOT BE CONSTRUCTED UNTIL THE CONTRIBUTING DRAINAGE IS STABILIZED. ANY SEDIMENT THAT ACCUMULATES WITHIN THE POND SHALL BE REMOVED AND CO 0 0 _ m W U. 1-: Z () CC THE FINAL GRADE REESTABLISHED TO THE PROPOSED CONTOURS SHOWN. - ' O) cc 2 Q Z ZLLQ~0-¢z00 0 THE PROPOSED STORMWATER MANAGEMENT PONDS ARE TO BE CONVERTED FROM SEDIMENT 0Z ❑ 0- O Q AND EROSION CONTROL BASINS. THIS CONVERSION SHOULD BE COMPLETED AFTER THE ENTIRE IS FOR AUTHORITY. Q F- Z W Z ❑ Ei U ❑ DRAIN AREA STABILIZED AND APPROVAL GIVEN THE LOCAL & STATE CCR — -. W CU THE CONVERSION TO A PERMANENT STORMWATER BMP SHALL BE ACCOMPLISHED BY INSTALLING (A IL W Z ❑ 0 M --p Z O O- W O I r THE PERM. OUTLET STRUCTURE AND REGRADING THE BASIN CONTOURS TO THOSE SHOWN ON THE PLAN. - = Z Q -W ('3 d m IL H 1— O Z L ANY SEDIMENT LADEN WATER WITHIN THE SEDIMENT BASIN SHALL BE DRAIN DOWN BY USE OF W=O W cr it - PUMPS AND DISCHARGES THROUGH A'BLADDER TYPE SYSTEM OR DISPOSED OF OFFSITE IN AN APPROVED SYSTEM. ALL SEDIMENT REMOVED SHALL BE PLACED IN A DESIGNATED SPOIL PILE AND ADEQUATELY - LLJ _ W 00 - PROTECTED WITH EROSION CONTROL MEASURES AND PERMANENTLY STABILIZED WITH - 00 f PERMANENT SEEDING.. - > — C4 0 C� z co ❑ -Q m SAND FILTER DESIGN SUMMARY _ IZ)O a; Of DRAINAGE AREA: 1.03 AC TOTAL Q W W.Q. PONDING: 1.6 MAX in 0}D Lj LO U SAND DEPTH: 1.5' 0. cn OO TIME TO DRAIN: 32 HOURS WATER QUALITY VOL. 2,627-CF W SEDIMENT CHAMBER: 2,300 SF (ELEV 198) SAND FILTER MEDIA 378 SF (ELEV 196.50) �� Z m .+�+ Lu N 00 Ii I— 2 RIP -RAP CHART Z W Q ¢ iz STRUCTURE 0-FLOW DIA. OF PIPE OUTLET VEL. d50 (L) APRON (W) APRON APRON THICK STONE _ 0 W EU w w n Z z z -�LO NO. (CFS) (IN.) (FPS) (IN) LEN. WID. (IN.) CLASS ~ .0 z g $ m � D CL (FT.) (FT.) LU FES-1 - 12 - 3 12 15 9 A = Z j Z LL mWQ Og �: FES-2 - 12 - 3 12 15 9 A 9 i FES-3 - 8 - 2 8 1 10 9 A LL m^ �C LL NOTE: ALL SLOPES DRAINING TO SAND FILTER AREAS SHALL BE Seal �' "•'•., STABILIZED PER THE NORTH CAROLINA STATE EROSION CONTROL �N CA/?O� ••p ,...... SEDIMENT CONTROL PLANNING & DESIGN MANUAL BEFORE MEDIA O pQ .rFgSSio",�y• IS PLACED. ? 2 fro M7 S4 SEAL r i DRAINAGE AREA MUST BE STABILIZED BEFORE FILTRATION 12557 CONTROLS & FILTER MEDIA ARE INSTALLED. ANY SILT THAT ENTERS 00 D E FACILITY OF OFFS TE. REMOVED BY THE CONTRACTOR AND •.��Q., y.� ',.•+_,E�,�. Oh�j 6130zoZ SAND FILTER OPERATION & MAINTENANCE PLAN (n SAND FILTER MAINTENANCE IS THE RESPONSIBILITY OF AMERICAN ASSET CORP. AND/OR ITS DESIGNATED PROPERTY - LU Z 7 MANAGEMENT ASSOCIATION. L IMPORTANT MAINTENANCE PROCEDURES: / Z LU > Ir Z J_ THE DRAINAGE AREA WILL BE CAREFULLY MANAGED TO REDUCE. SEDIMENT LOAD TO THE SAND FILTER. � Q V 1..^L THE SEDIMENTATION CHAMBER OR FOREBAY WILL BE CLEANED OUT WHENEVER SEDIMENT DEPTH EXCEEDS SIX - U V = INCHES - V Lu ONCE A YEAR, SAND MEDIA WILL BE SKIMMED. W W ' R THE SAND FILTER MEDIA WILL BE REPLACED WHENEVER IT FAILS TO FUNCTION PROPERLY AFTER MAINTENANCE. a � v - THE SAND FILTER WILL BE INSPECTED QUARTERLY AND WITHIN 24 HOURS AFTER EVERY STORM EVENT GREATER THAN Q Z Q Q 1.0 INCHES. RECORDS OF OPERATION AND MAINTENANCE WILL BE KEPT IN A KNOWN SET LOCATION AND WILL BE AVAILABLE UPON REQUEST. U +. a Cl `. cc INSPECTION ACTIVITIES SHALL BE PERFORMED AS FOLLOWS: ANY PROBLEMS THAT ARE FOUND SHALL BE REPAIRED O W O cc Q IMMEDIATLEY. rr M W rr BMP ELEMENT: - - POTENTIAL PROBLEM: HOW 1 WILL REMEDIATE THE PROBLEM: ENTIRE BMP TRASH DEBRIS PRESENT REMOVE THE TRASHIDEBRIS ADJACENT PAVEMENT - - OF APPLICABLE) SEDIMENT 18 PRESENT ON THE PAVEMENT SURFACE REGRADE THE SOIL IF NECESSARY TO REMOVE THE GULLY, AND THEN PLANT A GROUND COVER AND WATER UNTIL IT IS ESTABLISHED. PROVIDE LIME AND A ONE-TIME FERTILIZER APPLICATION. - -- VEGETATION IS TOO SHORT OR TOO MAINTAIN VEGETATION AT AN - LONG. .- APPROPRIATE HEIGHT. FLOW DIVERSION STRUCTURE THE STRUCTURE IS CLOGGED. UNCLOG THE CONVEYANCE AND - - DISPOSE OF ANY SEDIMENT OFFSITE. THE STRUCTURE IS DAMAGED. MAKE ANY NECESSARY REPAIRS OR REPLACE IF DAMAGE IS TOO LARGE FOR REPAIR. FOREBAY OR PRETREATMENT SEDIMENT HAS ACCUMULATED TO A SEARCH FOR THE SOURCE OF THE AREA DEPTH OF GREATER THAN SIX SEDIMENT AND REMEDY THE PROBLEM IF INCHES. POSSIBLE. REMOVE THE SEDIMENT AND STABILIZE OR DISPOSE OF IT IN A LOCATION WHERE IT WILL NOT CAUSE IMPACTS TO STREAMS OR THE BMP. EROSION HAS OCCURRED. PROVIDE ADDITIONAL EROSION - PROTECTION SUCH AS REINFORCED TURF MATTING OR RIPRAP IF NEEDED TO PREVENT FUTURE EROSION - PROBLEMS. WEEDS ARE PRESENT. REMOVE THE WEFTS, PREFERABLY BY HAND. IF A PESTICIDE IS USED, WIPE IT - ON PLANTS RATHER THAN SPRAYING. FILTER BED AND UNDERDRAIN WATER 18 PONDING ON THE SURFACE CHECK TO SEE IF THE COLLECTOR COLLECTION SYSTEM FOR MORE THAN 24 HOURS AFTER A SYSTEM IS CLOGGED AND FLUSH IF STORM. NECESSARY. IF WATER STILL PONDS,.. - REMOVE THE TOP FEW INCHES OF FILTER BED MEDIA AND REPLACE. IF WATER STILL PONDS, THEN CONSULT AN EXPERT.. OUTLET DEVICE - CLOGGING HAS OCCURRED. CLEAN OUT THE OUTLET DEVICE DISPOSE OF THE SEDIMENT OFFSITE. THE OUTLET DEVICE IS DAMAGED. REPAIR OR REPLACE THE OUTLET DEVICE RECEIVING WATER EROSION OF OTHER SIGNS OF CONTACT THE NC DIVISION OF WATER DAMAGE HAVE OCCURRED AT THE QUALITY 401 OVERSIGHT UNIT AT OUTLET. 919.733-1786. �r<_ W A)s p ti In CTB Engineer UB Drawn By 217/13 Date Revisions- F'RJ)eCL NUBIDer _.. 487-036 C5v2 Sheet 6 of 13 +189.7 / POND / 194i +,93.8 \\ f 192.7 +,fl2n + etsX\ +1942 + \ \ \ +1£qs +t93.9/ / \ \ \ CREEK DISCH7GE � - - - / \ \ \ PROPE\ \ +,es.o 190.0 191A \ / II I ��-198.5 1798A \\ 1979 I j �ti \\ \_ 1NV=DPE 191.91- - -/� _ I \I +,93.9 +193.1 +192.4 \\ � 101.6 - T,9aA +95.0I+194.9JUNCTION BOX I:$ I\�,+194.7 +194A+184.8 �"' y �_ _ - ��\NO ACCESS+795.0TOP ELEV=19825 1,85.7//I198.5 188b 1 24" R� 195.5 1 = "�,BS.z _i / 795-_ - -_ -1/NV=193.49 r cp V �� 1 � � _ _ � �'y �- PE 1e1-ice'- \ L.o 24"RCP 1 , 7 -RAP 7 19 194 - - - L� 190� 9B STREET F ■■■■■■ 1*■ ■■■■i 'HOPE _---.-193-- i v --192- -�\ 1 1� ll \ SIGN- ■ I y\ - - - 2.Y �. - / - �� ■ ■ 1�\ ,.Nv=192.7s %� s B - _ - _ _ 19- - \ °w 1 \ x '� I I \ 188A ■ // \ I\ \ -. �-'FES 15"RCP - i 198.E 98.5 98.0 � +/+185sINV=196.92 -\tao.7194. ♦ 190.9 �I ■9 j 1 I ` / / \\ \ / +t\\ 192.9 \ o -19, 9as 96.7 +195.9 ■ / I \ III `~/ / / I \ \ \ +195.5 \ 197.1 +t - \ \ \ 1,19t \ KT I I I 1 1 ----r � / \ i\ \ \ \ mM \ I I 196.7\ + / \ \ \ \ \ +191.9 1� /� �\\\11\ NV19+195.6 'CM3.8z I ( \ \ \ \ t19819 \ \ �O / \ \ \' \ +194.5 \ \ +193.5 \ �'g +192.7 \ \ m \/kp.� I \\\ \ \ ' 199A .5 \\I 11 I \\ /// \ \96.0 +195.3 \ d \ / 'w +196.6 II II jlll fl 11 \� \\ I / / +197A ' +,9z7 \ e / -197.0 '1 I & 1 I I I I 196.9 1�s - - / BORE-4- _ I II i I I 99.z �{ 1 / / - - - - \ \ + \ +192.a / / / _ \ \ \ 1 + �� \ 193a ,99.e I +194.s \ \ 9. 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I I III / \ 1 I\ I \ \ \ +195.8 +toss - I I I I I rl 1 ` \ / / \ \ \ +196.s +, ° \ \ \ \ - \ Seal 11111 I I 1 I \\ /190J // +198.4\ +197.2 ,+199.8 \\\ \\ \\19a 111 \ II \ \ \ \\ \1 \ 19\2�il.6++19B.3 \I `\- -\ \ - - -- /- /- - - - - 118.7 +198+198.6 � / \ \ � +195A 1942 + `+193.5 ZOOA PREDEVELOPED 797 +196.8 200.8 !� \` \ \ _ - 197.0 +,96.9 DRAINAGE AREA +107+197.3 - 195 \ - - - - - - 1.03 ACRES 193.4++1aa I I I II II III IiI t I II +2pI 0.9 0J ,\rl� I\� (HYDROCAD: 8S) QI +199z \ \ \\ iI \ \ +98 \ +194.3w +1 .7 +198.8 195.7 \' 1992 //\+197.5 / J®BOREa - �ko a- W 199 / ` coo 0- + +199A \ \ +198b +200.3 200.0 `�� \ \ I \ \ 193.6 // / / �-POND-Z_ I/ m/ ON 'lll \ �99A +, 9 +200.3 \ `\ I \\ \ \ +194.9 \ + w7 1 III ii� I`}1 \1 199.9 +� - +1� +197a \ \ t98b + \ \ \\ -+I` ///. 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L Engineer LJ B Drawn By 2/6/13 Date Revisions Project Number 487-036 DA1 II 1 I I I� II I II li,ll I I I I I I I IIII JUNCTION BOX NO ACCESS TOP ELEV=198.25 UGk ° ( i/cp u / ` 198 \ 1 / �,iI �I II\ \ 1\ \��I i�Irt`mv1, 1 11 1 I 1II I Ci I 1` I ' \ I II I1 V3.2III �II_I1 \ . ie�\�♦♦♦ % �ZW 0Z � HZ W+191.s w Z = w +� sz.7 = om i H CC O O a +194O 1Occ1sa.z mO U)+1sas ZQ Z/ WQOQol/mi-O0zZ+189.0 +19 1.4 1190.0 0ZoOQn +191.7 cr cr Q - 0 W U 0 19 +192.4 0 W W 0 D W w W s7.e z0��zCOMBINED IN +193.1 0 +193.9 O Za o w m o d_EXISTING DITCH 194.E d O (L 94.4 Z 1-194.7 w(HYDROCAD: 22P) I- II I I I J 196.5 8� �♦ / 195 - 11,1 ' 795.7 24" RCP .49 \ \ / - ��i198 to - 1♦12"HDPE _ / i1914 - - - - - - --- - - so ^ RIP -RAP --------- / ■o",'13I /. /■■'\9O\■SO��' I 1 I1 Ir rw'-Cy r, Jf- .A Aso ,r-.1 �--�te`-a-_.jj,pp ce�ii'' -�� 1s195 192- 15^HDPE )3 92.75 n 193 L ems FES P 1 192.1 985 111 1 lI FF+185.6WV-195.82,e,984 sa.199.0 195 -_190.9 -� GU -1 / \--193.7 +192.9 \ 1m I 196 197 -195.5 \ 194.6 1ae.7 _o -L Po �, / /a M 197 1s 197 19e 199 201 -° ',�' • SAND FILTER , � V I �" \1tf;RMII)0S RCP 18 \ ei�8� I / INV=193.a2 (HYDROCAD: 4P) ,. / I - \ \ +193.s +192.7 III t 1 , 199.4 i / % +194.5 V 7y3 m / 9� 11 I I � �� / � � � � � . 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Q ci g / / -1s5s V v $ 1- A V A v v l OD POST DEVELOPED +�`, vv vvv `v�' ��� vvv 6 € I\ \\� L LL A� v ��� mLO ,, / s, �1 DRAINAGE AREA 1� '\v vvv `1,.a�-.z o / 1.03 ACRES 1 v� 1 -�-194 �S 1e3.3 -- ILL (HYDROCAD: 5S) 1 v v ss a +195.5 \ r \ \ \ \ - - /�v� ' = 1n to -196.5 v \ V A rn v--------v v Seal /, / \ \ 194.2 - i v v / I 1 +s6.a i d v v 1s6.a \ 1 I zoo.6 / 'zoe a i /- / / V 97 - - { - 1 I I �IiIL� /'� 't �9'/ I .1..7 7.3 1 1 I I Uj-1,9 V A 795�x \ v 162'OFB"PVC�0.50% 2 99.7• .. $7 198 \ : I� +i94.3 v A 9 S �199 v 1 .s \v-is5.7T I I I 200 Q i� U / - - - �� '�/ / �i -- 9s.t om � /- +2 % +200 �SA � / / e1$ \\ Ig8 \\ \\ 194.9 \\93.8 �o� _ / /7- / ae.e \ / / 197.3 -k,ea.o \ / T � - 79s_1 \ \ \ \ 2o,.4i �� � � • °� -y : . /�j / v s9.o � v \ 1 I � \ v � �i / Q U) +200.es3s_ v W o W �°°7 % / �� i �/ / o? \ \ +194.9 v > Q _1.....198.8 I 979 �\ \ U J I zoi{� � I / �/ / % % /I 1ss.e sss RE-9 .L_199.e A \ r \\ v - - (�j Z I I I I I/ 201.s��i .n� /, /v / i �, / A v W W LLI W a 0 > II / as.9 L �..� I 201.9 ` \ � _ i �I"�/ 2oo.a �/ zoo / 2 � / -- -- ---_- --- v � 7�- -� cnBLEBOx - ��-1as.7 � - _ -+ � \ \ A \ - 0 W 0 200 - I +1 v A - MAILBOX _ O \ ?ptI 200.0-oo.o#� - - _ --. -\__-._�-�`UJ ` �\------` Cr)LL �-�0 cc ^i99.8 Q / F / zoaa - 200.5 - - - - - - - - A y_ea_o- - / 202.3 \� , A , A - _-201L9- - - - - - - - - - - - _ - - - . 199 7 199.2� -. 1985 - _-�-�1�Z$.---�8�"- ._: -..__ FES 24" RCP / ,- - - - T -_ INV=197.20 _ - -. --- - - -- Po-=- / / / Ot] \ \ -+301r - - 200.8 2003� ro-- �" - / +201.8 \ _ -. - 201.9 201,6 .2_ t'' STOP BAR / \ / - - - � _ - - - - - - _ - - - - - - - - - - - _ 202.0 _ -_ ro-._-to---. - _ `° _- _. \ \ \ W EP ��2024 Fo._.__. f - o---FO-- Fo- US HIGHWAY_ _ _ - - - - - - -- - -- --__ -- - - - - _ - ■ 2aza - _.- 100' P BLIC RIGH -O vV�7INE5�7 Sea �� / E� _-.� _ _._._ co-... G ___._.._.._._.- -------- ---- COMMUNICATION .� �1,9 207.5 - -CD MANHOLE H--.-.-w----PO r 203, - ■ -I--- .L---_ i-._ - F. w- -ra----sue_' - �' I / :� m 203.0.E ---'202.6 - -_ / �/ Wb_-.__ WL---/ WL ---_..._.-__ _- r _ DI WLWL. __-_ 203.1 - - 202.9 I --__. __RIM=19885 ■ / / 203.3 OF_. ...�.._. - i'�O� T 2001 /._-. _ . ypL. _.. fi- NL -WL �� ) CTB d■ O 3 / _ _= 203.2 _ - - - - I _ �� L__-._ WL-.__-WL --_ Y_Wl Lq �_■■■ ■■ • / 203.3 i I __ 202.0' / EP 201.7W -__gyp[.. __ W / ✓ .. _ ; �.'� OUT196. (1 ._.. so■■■■�■■ ■ ��■■� so■ Engineer _ _ 2008 i -WL D K' 202.E 2022 WL--WL -WL --_ ■so■■■■so■■■■so�N■ p -Y--- +-------- o _ _WL - - _ ?� 15 RCP �L--' WL _.._ \ /-_.._. 1gRCP R#■�°. es ..._- sa LJB 202.7 _.-._._WL- ����IlLL""..'''.. / ---- ■so�NM - - ■ --- vl WL-WL_---_Wl_--_WL _ - _ _� i - _� i �V ■\so■■■■so■■■ - _ as -� _ -_ ■ m3 i zoz.a wL- _wL - - - - - - - - /-__------ -� _ _ _ --- - Drawn By / f O� /202.9 WL... __.. _._._WL--.__WL- _/ -_ �T \ \�-� -. T n _ __ -- r/ x ro �I. WL WL-_-._-WL--._--WL _-___C _- - 2 I /13 wLs.o ti .,.� -_ ..,..\ss-- \ 15"RCP Date 6 k se � - --fI- W WL INV=197.39 -WL-'L EP WL- _-.- Wl --_ \ ' UTIL.. WL $ \� $03.1,- - _�____�___---_-s'" _ �1 \....:. WITH PEI ReVISIOnS WL-_.-_ F _ - - - ' _ - - - 24"RCP _ DRAWING INFORMA T/ON -- INV-199.23 I A - .' /TT - vl UTILITY POLE WITH r_.�-- �-aim----�- P , V � \ r -�/- TELEPHONE --q,p r..�'-crop' FES15" /� /❑ I - -===--- - - TRUE PLAN INV 199.54 , / \ __ - - -rs _ rs PEDESTAL q, CANOPr «ro - ---ate ---�� NORTH NORTH _-�-_wur I � � v A L �;> v -�--I ; / / � \ � �L DI#16 -, �,____-/�, North Caro/Ina One -Call Can Erwu,�s EHc�,y� - STOP BAR \ O \ \ \ \ \ U"A E TO \'j�IN=200.47 II I -- _ _.._..._.....-I E Call Bf f Before You 9 E \\ \ DETE INE - ■so■�■ so■ OUT=200A9 _ IIII I� Jus Project Number GRAPHIC SCALE 487-036 o 10 m .o eo \ \ \ 1 I I � I ■ _� 1 �INi�, DA2 I inch _ 20 n