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Home My WebLink AboutWPO201300037 Plan - Approved 2013-05-30N .a a PHASE 2 OF ALBEMARLE COUNTY, VIRGINIA Wpolllllll._�ZONE A EROSION ?v SEDIMENT CONTROL PLAN MAY 1, 2013 LEGEND W PREPARED BY: - - - - - - Alan Franklin PE, LLC WATER VALVE/ METER Civil and Site Plan Engineering FHA <5- 427 Cranberry Lan@ Crozet, VA 22932 I.S. 434- 531 -5544 YH<�- alan @alanfranklinpe.com ALBEMARLE COUNTY ENGINEERIN"G GENERAL CONSTRUCTION NOTES FOR E &SC PLANS: CONSTRUCTION SEQUENCE BOA ® BLOW -OFF ASSEMBLY 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE - CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. PRIOR TO CONSTRUCTION SANITARY SEWER LINE (EX./ PROP.) - BEFORE COMMENCEMENT OF WORK: 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA • CALL MISS UTILITY AND REQUEST MARKING OF ALL UTILITIES. CONTOUR LINE (EX./ PROP.) REGULATIONS VR 625 -02 -00 EROSION AND SEDIMENT CONTROL REGULATIONS. CONTACT AND COORDINATE WITH UTILITY COMPANIES TO ENSURE PROPER AND COMPLETE DISCONNECTION OF ALL SERVICES TO EXISTING HOMES AND THE PROPER' E-3:1- F2.50% DEGREE/ DIRECTION OF SLOPE METHODOLOGY OF REMOVING OR RELOCATING ANY AND ALL UTILITY FEATURES AS SHOWN ON THE PLANS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. -CONTACT AND COORDINATE WITH VDOT TO SECURE ALL NECESSARY ENTRANCE PERMITS AND AGREE UPON NEEDED TRAFFIC CONTROL MEASURES AND CONSTRUCTION DI d STORM INLET ENTRANCE CONFIGURATION SPECIFICS. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. • FIELD STAKE LIMITS OF ANY AREAS TO BE PROTECTED FROM CONSTRUCTION ACTIVITY AND INSTALL MARKERS AND /OR OTHER PRESCRIBED MEASURES OF PROTECTION. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY ZONE A- STAGE 1- DOWNSPOUT EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. DITCH / SWALE G GAS LINE (EX./ PROP.) 1. CONTINUE USE OF ESTABLISHED CONSTRUCTION ENTRANCE AT DICKERSON ROAD FROM PREVIOUS PHASE OF CONSTRUCTION. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OFANYADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 2. ESTABLISH CONTRACTOR PARKING AND STAGING AREA. BM* BENCHMARK 3. UTILIZE CONSTRUCTION ROADS FROM PREVIOUS PHASE OF CONSTRUCTION AND EXISTING DIRT ROADS THROUGH ZONE W TO INSTALL PERIMETER MEASURES,AND 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. CONSTRUCT SEDIMENT BASIN AND SEDIMENT TRAP. UGE UNDERGROUND ELECTRIC (EX. / PROP.) 4. COMPLETE ANY DEMOLITION OF STRUCTURES TO BE REMOVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 5. INSTALL PERIMETER SILT FENCING WITH WIRE SUPPORT. CG -12 VDOT STD. HANDICAP RAMP 6. INSTALL SAFETY FENCE AROUND TMP 32 -49B. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF - PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION 7. CONSTRUCT TEMPORARY SEDIMENT BASIN AND SEDIMENT TRAP #4 ALONG WITH ANY DIVERISION DIKES DIRECTING RUNOFF TO THESE MEASURES. L- GUY � CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 8. INSTALL CLASS 1 RIP RAP SPILLWAYS ON THE TWO RECEIVING LEGS OF THE SEDIMENT BASIN. DUCTILE IRON PIPE 9. INSTALL SAFETY FENCE WITH SIGNS AROUND PERIMETERS OF SEDIMENT BASIN A ND SEDIMENT TRAP. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 10. INSTALL DIVERSION DIKE JUST UPSTREAM OF SEDIMENT BASIN TO PROTECT SEDIMENT BASIN FORESLOPE AND DIRECT MAJORITY OF SITE RUNOFF TO THE RIP RAP ELECTRIC METER CMP SPILLWAYS ON THE TWO RECEIVING LEGS OF THE SEDIMENT BASIN. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS. 11, ONCE PERIMETER MEASURES ARE INSTALLED, DECOMMISSION ANY EROSION MEASURES FROM A PREVIOUS PHASE OF CONSTRUCTION. POLYVI NYLCH LORI DE PIPE OHT 12. ESTABLISH STOCKPILE AREA IN LOCATION SHOWN THE PLAN. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. STRIP TOPSOIL OF LAND TO BE DISTURBED AND STOO RE IN STOCKPILE AREA. INSTALL TEMPORARY SEEDING AND SILT FENCE TO THE STOCKPILE AS NEEDED. � 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13 -3010F THE CODE OF ALBEMARLE. 14. BEGIN CLEARING, GRUBBING AND MASS GRADING OF ZONE W ENSURING THAT ALL DISTURBED AREAS DRAIN TO EITHER THE SEDIMENT TRAP OR BASIN. 15. MAKE OFF -SITE SANITARY SEWER CONNECTION AND INSTALL AERIAL SANITARY SEWER /STREAM CROSSING WITHOUT DISTURBANCE OF THE STREAM. NO STRRA 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:OOPM. DISTURBANCE IS PERMITTED DURING THIS PHASE OF CONSTRUCTION. 16. CONTINUE INSTALLATION OF SANITARY SEWER PIPE AND SANITARY SEWER STRUCTURES ZA1, ZA2, ZA3, ZA4, ZC1, ZB1, ZB2, ZB3, AND ZB4 PRIOR TO COMPLETING 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE FORESLOPE OF SEDIMENT BASIN TO STAGE 2 GRADES. 17. AFTER INSTALLATION OF SANITARY SEWER AS INDICATED ABOVE PROCEED TO STAGE 2 PLAN. TBR TO ANY PUBLIC STREET BECAUSE D SLIDES, SINKING, OR COLLAPSE. GV X 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERtTO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN ZONE A -STAGE TWO BOA o REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 1. CONTINUE GRADING TO ESTABLISH ROUGH FINAL GRADES INDICATED ON THE STAGE 2 PLAN. 17. TEMPORARY STABILIZATION T 0 S A ZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BEAT 75 LBS /ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, 2. MAINTAIN PERIMETER SILT FENCING WITH WIRE SUPPORT. ADJUST LOCATION AS NECESSARY. 3. INSTALL AND ADJUST DIVERION DIKES, DIVERSIONS, FILL DIVERSIONS, AND SLOPE DRAINS TO DIRECT ALL ZONE A RUNOFF TO THE SEDIMENT BASIN AND SEDIMENT OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS /100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION TRAP #4 WHICH ARE TO BE MAINTAINED THROUGHT STAGE 2 CONSTRUCTION. CONTROLINSPECTOR. 4. UTILIZE AREA DRAINING TO SEDIMENT TRAP #4 FOR EARTHEN BORROW OR WAISTE OPERATIONS AS THIS AREA IS A PART OF A FUTURE PHASE OF CONSTRUCTION. 18. T PERMANENT STABILIZATION A S A IZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF, INCORPORATED INTO THE TOP 4 -6 INCHES OF SOIL. FERTILIZER SHALL 5. CONTINUE INSTALLATION OF SANITARY SEWER AND INSTALL WATERLINE AND STORM DRAINAGE FACILITIES AS DEPICTED ON THE STAGE 2 PLAN. THE LIMITS AND LOCATION OF PROPOSED SANITARY SEWER WATERLINE, AND STORM DRAINAGE FACILITIES ARE TO BASED ON THE APPROVED SITE PLANS. BE APPLIED AT 1000L§§/A9RE AND CON -5I -ST OF A 10 =20 =10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180LBS /AOR€ ANDCONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0 -5% PERENNIAL RYEGRASS OR KENTUCKY ' 6. INSTALL INLET PROTECTION ON ALL GRATE, CURB, AND DROP INLETS AND OUTLET PROTECTION ON ALL PIPE OUTLETS AS NECESSARY. BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 7. AS PHASE 2 (ZONE A) ROADWAY GRADES ARE FINALIZED INSTALL ROADWAY BASE MATERIALS AND CONCRETE CURBING ADJUSTING INLET PROTECTION AS NECESSARY. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLYAND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET 8. CONTRACTOR TO COORDINATE WITH HOME BUILDER TO ESTABLISH BUILDING PAD GRADES. 9• AS PHASE 2 (ZONE A) BUILDING PAD GRADES ARE FINALIZED, PERFORM SURFACE ROUGHENING ON SLOPES AND PREPARE ZONE A DISTURBED AREAS FOR STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT STABILIZATION. iPERMANENT j MUST BE CLEANED AND REPAIRED IMMEDIATELY. 10. APPLY TOPSOIL, PERMANENT SEEDING, STRAW MULCH, AND MATTING AS REQUIRED TO ALL DISTURBED AREAS THAT ARE TO BE VEGETATED. I 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL 11. ONCE ALL ZONE A ROAD BASE MATERIALS AND CURBING ARE INSTALLED, ALL PERMANENT VEGETATION IS ESTABLISHED ON TURFED AREAS, AND THE ZONE A SITE IS DEEMED STABILIZED BY THE COUNTY EROSION CONTROL INSPECTOR, CONVERT FACILITIES TO BMP, REMOVE ALL OTHER EROSION & SEDIMENT CONTROL MEASURES, INSPECTOR. DISPOSE OF SILT /DEBRIS /TRASH IN AN APPROVED MANNER, AND INSTALL ALL REQUIRED STORMWATER BMP'S. ADDITIONAL EROSION CONTROL NOTES: 1. CREEKS AND DRAINAGE SWALES ARE TO BE PROTECTED FROM SEDIMENTATION AT ALL TIMES. 4 "01 L DATA 2. CERTAIN SEDIMENT BASINS ARE SPECIFIED TO BE CONVERTED TO PERMANENT IMPOUNDMENTS. CONVERSION IS PART OF THE SCOPE OF WORK. 47C LOUISBURG SANDY LOAM, 7 TO 15 PERCENT SLOPES 94B WEDOWEE SANDY LOAM, 2 TO 7 PERCENT SLOPES 3. ALL SLOPES EXCEEDING 3:1 ARE TO RECEIVE STABILIZATION MATTING. 94C WEDOWEE SANDY LOAM, 7 TO 15 PERCENT SLOPES 4. CERTAIN SLOPE SECTIONS BEYOND FUTURE BUILDING PADS ARE TO RECEIVE PERMANENT SEEDING AS SHOWN ON PLAN. 5. FLUSH CLEAN COMPLETE STORM SYSTEM PRIOR TO DEMOBILIZING AND FINAL INSPECTION. LEGEND W WATER LINE (EX./ PROP.) - - - - - - BOUNDARY/ RIGHT -OF -WAY LINE WVO WMO WATER VALVE/ METER I.F. IRON PIN FOUND FHA <5- FIRE HYDRANT I.S. IRON PIN SET YH<�- YARD HYDRANT - - - - - - SETBACK LINE BOA ® BLOW -OFF ASSEMBLY - - - - - - - - EASEMENT LIMITS SS SANITARY SEWER LINE (EX./ PROP.) - CENTERLINE CO o CLEANOUT --670 CONTOUR LINE (EX./ PROP.) MH-- MANHOLE E-3:1- F2.50% DEGREE/ DIRECTION OF SLOPE SD- STORM LINE (EX. / PROP.) 479.70+ SPOT ELEVATION DI d STORM INLET HP HIGH POINT YD ® YARD DRAIN LP LOW POINT DS o DOWNSPOUT - - - - - - • - - DITCH / SWALE G GAS LINE (EX./ PROP.) _ _ • • = WATER COURSE GVO GMO GAS VALVE/ METER BM* BENCHMARK OHE OVERHEAD ELECTRIC (EX. / PROP.) CG -2 VDOT STD: HEADER CURB UGE UNDERGROUND ELECTRIC (EX. / PROP.) CG -6 VDOT STD. CURB & GUTTER PPJa POWER POLE CG -12 VDOT STD. HANDICAP RAMP LP <> LIGHT POLE HC HANDICAP PARKING SYMBOL GUY � GUY WIRE DIP DUCTILE IRON PIPE RCP REINFORCED CONCRETE PIPE EM o ELECTRIC METER CMP CORRUGATED METAL PIPE TRANSFORMER PVC POLYVI NYLCH LORI DE PIPE OHT OVERHEAD COMMUNICATIONS (EX. / PROP.) HDPE HIGH - DENSITY POLYETHYLINE PIPE UGT UNDERGROUND COMMUNICATIONS (EX. / PROP.) VC VITRIFIED CLAY PIPE PED ❑ UTILITY PEDESTAL FFE FINISHED FLOOR ELEVATION SWM / DWM o/n SINGLE / DOUBLE WATER METER TBR TO BE REMOVED GV X GATE VALVE TBT TO BE TRANSPLANTED BOA o BLOW OFF ASSEMBLY TBS TO BE SAVED VICINITY MAP r'= so' DR I( ?7 LEGEND: SAF SAFETY FENCE !3.01 VA E &SC STD. TEMP. STONE CONSTRUCTION ENTRANCE 3.02 VA E &SC STD. r CONSTRUCTION ROAD STABILIZATION CRS 3.03 VA E &SC STD. SF SILT FENCE 3.05 VA E &SC STD. IP STORM DRAIN INLET PROTECTION 3.07 VA E &SC STD. CIP CULVERT INLET PROTECTION 3.08 VA E &SC STD. DD TEMPORARY DIVERSION DIKE 3.09 VA E &SC STD. FD TEMPORARY FILL DIVERSION 3.10 VA E &SC STD. RWD TEMPORARY RIGHT -OF -WAY DIVERSION 3.11 VA E &SC STD. DV DIVERSION 3.12 VA E &SC STD. ST TEMPORARY SEDIMENT TRAP 3.13 VA E &SC STD. SB TEMPORARY SEDIMENT BASIN 3.14 VA E &SC STD. OUTLET PROTECTION OP 3.18 VA E &SC STD. RP RIP RAP 3.19 VA E &SC STD. CD ROCK CHECK DAMS 3.20 VA E &SC STD. TEMPORARY VEHICULAR STREAM CROSSING SC 3.24 VA E &SC STD. SR SURFACE ROUGHENING 3.29 VA E &SC STD. TO TOPSOILING 3.30 VA E &SC STD. TS TEMPORARY SEEDING 3.31 VA E &SC STD. PS PERMANENT SEEDING 3.32 VA E &SC STD. MU MULCHING 3.35 VA E &SC STD. B/M SOIL STABILIZATION BLANKETS & MATTING 3.36 VA E &SC STD. nDC DUST CONTROL 3.39 VA E &SC STD. APPROVALS. PLANNING /ZONING EN91NEER REVISIONS �ILEcafy Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434- 531 -5544 alan@alanfranklinpe.com �Mi z w g � o �I z o a F- z u.' O � 0 J > ILL] ce� z z ZD o 0 0 � J W � 06 O � W cn Nm Q a W w z U^ o Q0 3 W W Cn W 0 U oA�p,1,,TH OF e y f�� N��. Alan G. Franklin Lc. No. 35326 W NAL SCALE: NONE ISSUED: 05 -20 -13 REVISIONS: SHEET OF 12 SHEET INDEX SEAL SHEET 2 EROSION & SEDIMENT CONTROL PLAN STAGE 1 SHEET 3 EROSION & SEDIMENT CONTROL PLAN STAGE 2 SHEET 4 EROSION SEDIMENT & CONTROL DETAILS p,LTH Op V SHEET 5 EROSION SEDIMENT & CONTROL DETAILS SHEET 6 SWM: PRE - DEVELOPMENT DRAINAGE AREA MAP v r� SHEET 7 SWM: POST- DEVELOPMENT DRAINAGE AREA MAP Alan G. Franklin SHEET 8 SWM PLAN: WATER QUALITY /BMP MAP �7, Lic.No.35326 SHEET 9 SWM PLAN: SWM /AMENITY POND DETAILS w SHEET 10 SWM PLAN: BIO- DETENTION POND DETAILS SHEET 11 SWM PLAN: BIO- FILTER #1 & #2 DETAILS l 0NAL SHEET 12 SWM PLAN: FOREBAY #1 & #2 LANDSCAPING LEGEND: SAF SAFETY FENCE !3.01 VA E &SC STD. TEMP. STONE CONSTRUCTION ENTRANCE 3.02 VA E &SC STD. r CONSTRUCTION ROAD STABILIZATION CRS 3.03 VA E &SC STD. SF SILT FENCE 3.05 VA E &SC STD. IP STORM DRAIN INLET PROTECTION 3.07 VA E &SC STD. CIP CULVERT INLET PROTECTION 3.08 VA E &SC STD. DD TEMPORARY DIVERSION DIKE 3.09 VA E &SC STD. FD TEMPORARY FILL DIVERSION 3.10 VA E &SC STD. RWD TEMPORARY RIGHT -OF -WAY DIVERSION 3.11 VA E &SC STD. DV DIVERSION 3.12 VA E &SC STD. ST TEMPORARY SEDIMENT TRAP 3.13 VA E &SC STD. SB TEMPORARY SEDIMENT BASIN 3.14 VA E &SC STD. OUTLET PROTECTION OP 3.18 VA E &SC STD. RP RIP RAP 3.19 VA E &SC STD. CD ROCK CHECK DAMS 3.20 VA E &SC STD. TEMPORARY VEHICULAR STREAM CROSSING SC 3.24 VA E &SC STD. SR SURFACE ROUGHENING 3.29 VA E &SC STD. TO TOPSOILING 3.30 VA E &SC STD. TS TEMPORARY SEEDING 3.31 VA E &SC STD. PS PERMANENT SEEDING 3.32 VA E &SC STD. MU MULCHING 3.35 VA E &SC STD. B/M SOIL STABILIZATION BLANKETS & MATTING 3.36 VA E &SC STD. nDC DUST CONTROL 3.39 VA E &SC STD. APPROVALS. PLANNING /ZONING EN91NEER REVISIONS �ILEcafy Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434- 531 -5544 alan@alanfranklinpe.com �Mi z w g � o �I z o a F- z u.' O � 0 J > ILL] ce� z z ZD o 0 0 � J W � 06 O � W cn Nm Q a W w z U^ o Q0 3 W W Cn W 0 U oA�p,1,,TH OF e y f�� N��. Alan G. Franklin Lc. No. 35326 W NAL SCALE: NONE ISSUED: 05 -20 -13 REVISIONS: SHEET OF 12 TMP \2C�3�41 SUSAN L�SILI�A 1c, DIV P. —7 ` SUSAN LETT TM' I 2C3 -39 TIEN H0 1 \ \ - \ \ / \ \ 'c \ \ \ TMP 32LA1 r \ \ \ EDG R D. OR US N \ ` ,�� \\ / \ ' I c / �AWHORNE \ 550 _____ I \ \ ♦I s \ " \ \ \ \ \T P C:3 DMA \ \\ \ / ._ _ \ i 4 ,3 I 1 l I ( �'- '�C. tlGE TION, TY' \ \ \ \ > s L TYPE \ \ \ \ �\ _ \, 1• / / 94 560— �\\ x \ c. \ WETL4NDS NOT:, 0 N\ ` ISTURBE \� \ I r� PERMITTER -- BURT FA�f\t11LY'� •I ! l 1� I l 1 j' \ �^n 1 ' t , W ETLD -1\ t4N D TR ST — I ' / / / f ✓4 \ , \ \ TRIP 32- 9H D URBANCE � �� - \\ °\ \\ �I€- TO-EMSTING MONTY W. AN'D DONN r - / \ �/ i / \ V 1N FUTURE PHAS �. ` v \- \ % AN. SEW W'f I ! /SUE 'EER ° f \� \ NSTALtAERIAL_SAN� T 1 I I \ \ i DW €RSIQN Y ` LlWfS OF � '" 17' STONE `` � � \ DD IKE, TYP. / /DISTURBANCE - _. r`r� \.4 �6SING, I I \ D �` WIER PE ZONE A - >- JSEWE� C 1 I h 1 \ J / / ., ST,REALVIs - --�.DO -N-OT` D1ST STR 1 1 \ (APPROX.w16.9 AC) i \ t % ,_ _PER NIAL�S, . ` . � _ �. __--- r, > . x�...,r - • <. ; . REAM `� �` (DO NOT DIST E') ♦ \ ,.r .� :,... . � -. --=:- SILT _,.. FE N TYP. \ -� --• DISTURB � / N -- \ sou' _- — — — SF \\ `\ D) ` 4-SF=r D� DD-- = �/ ti \ ZONE LIMITS ° - - �S \i \ \ f i ° , J \ w s r _ - - - - pp 'a\Q "�-�S \` ,• - , �\ �\ LIMIT OF - 4i C - - " G. BISTURtANC #4 / -� DLVE -RSION '�D \ ` __ _ 37 .. ` \ INSTALL SS ZA4 - DIKE TYP c��\ .. ^� (APPROX. \16.9 S p ��s' - ' ? -" �`' --•� -- - - - - - - - - - — 7. SOIL TYPE ` �.. ��"�" _ 6 DIVERSION - _ ` INST�u_ss ZA \ \ ^� \ �\ MP. SEDIM T- S j''' /-,D LJ �---- Sfl TYPE - - '°`- J - - INSTAL POU 2TtflAL RAINAGE A A - 1 .4 AC. \ \-DtKE, TYP_ _ - - - ` _ _ 1 ' OF-SA SEWER \ \ \\�� \ 1 DEEM AN T LEV. 5 .00) / f \ \ 1 1 T FENCE, ` �� 94C SF —�'� _ 4 _'� \ - " - - ` \X \ s �BQT7 TRAP EV. \ \ \ �\ TEMP. �EflII�iENT TFZAP #4 '� INST�cLt- PORTION a_ \ \ ` ---- \ \ / \ \\ \ TYP. ys' _ — - - _ - - - - ` - _ -OF SAN_S�WER -G - _ `�_ - INSTALL SS�A2 �' \ \ ~ \\ ~� E P 42" IS R )�N�T ORYEX \ \ N, \ SF - \ \ D IAGE AREpy- 2.89 �cC— \ \\ ` _ _ _ �\I. \ �� \ \ \\ \ \\ / `� \ 4' WIDE EM$ANK. (TOP�LFV�`O.QQ� - - _ - - - \ \ \ \ �A� REST @ 527.20 \ / \ �,%C SOILS �`TY E W SIGN - - J _ 1 - �- F \ i� \�"� RIFT6E STOCIkP4LE BOTTOM OFOT- RA�EV. 546.00 ``� S� / � � _ INST�rL�PORTtO�N .� � � � \ � � � \ DIVIDE, TY�. \ _� - — — THAT EAbS GER _ _ - - - - - - - - .SOILS - OFSAN. S� ER C� � °" � \ \ `� � `W'�� 1 .0 y \ \ "11011 \ AREA u� 17.0 STONWEfR \ ,, _ - _ . - _ V� \ \ \ - 4 \ \ \ \ T �\ OT�fOM OF W1=1R ELEV. 57`60 /CK SAND DO OT ��T \ \ \ - \ \ VO1 \� \ ♦ \ \ \ R 90 \ \ ENFER" � -I NST LL SS ZC1 - - - - "' _ ` - DIVIDE, TYP 0 - T1VIP2C3 -OA \ I ALL SS Z�1� \ \ �\, \ BURTON FAMILI + TOP O WEIR I - EL'� . 548. \ \ - - _ ` \ SET VOL 200.4 C-Y DRY UM - .0 CY &Ass I'Rle RAID `-- -- --- --' \ ._--- -. \ (TEM'RORARY�, \ \ N � \ \ 1 - - _._. � \ \ ,n f SF J - /' \ \ -- - - - - -- - _ \ \ \ `� \ \ \ \� \ \ TMP 32 -4 I ° / i _' \ \ \ \ ss� \ \ \,�� ' k `- L TYPE \ \ ry' \ � �-�� TRIBAL PI OPE TIE$, { \\ SL TJ(PE'sTRUCTU� 1°O ~ ____ \ \ \ - --t \ �LC MAITA�EXISTING \ J I f BE DEMOLISHED \ \ CIS \ __47c O DIRT ROAD TO ACCESS - \ \ \ \ \ \ \ \ 'Z SE 'STOCK PILE _ - — — J� \ \ \ \ \ \ \ \ \ \ \ - \ QD N��9 - - OF 24" V \ \ \ R ON CONCR1 =Tf C&.ADLE \ y., M / VEGETATION TYP. \ -�_ r --- \ \ \ INST LL SS Z 2 INV. OUT - 518.00 \ \\ AFE -TY� SAS . - - \ I 1 i i SA TY F\E CE I \ \ -� ; NT \ \ / f- - _ - \ o , \� \(MANE ) - \ \ EX. DRAINAGE — ? J ' \— i \, / / C N RUC>] DIV NS�ON DIKES INSTA L SS Z93 ( \THAI E�)Z DO \ OP ��s BdDST TING AT BASIN AND WfbRKING, P '� \\ -•--_ — \ � \ \- \ J - .►-- � --_ . y �. / ( I ( J � E TER J �' � \ \ � • �� DRAINAGE AREA TO / / TO RDS HE FRO T OF THE SITE SEDIMENT /BASIN / C ERS � RD) A CLEANING AND I \ / \ {42" CAMP RISERI \ \ n (APPROX. 14.07 AC.) /' f ( B IN PROG SSES x \ \ \ 1 /LEV = 57.201 1 / \ \\ \ \ \ \ \ STAGTNCZ , / / I j � J \ { i mN NN�v (TENMIPOR'ARY) / 1 �j /'� \ \ \, \ rK \ \ \ / \\ AREA - �\ / / // / /' l { I l f OP FB /RM 1 ' / / } \�� \ \ x \ \\\ C, \ \ \ \ \\ `"t `\2 -49B jXELE \ \\ \ \ \ \\ \ \ B/RBARA A 'EERY X \ \ SOIL TYPE \ \\ TA MY P. GRUBB � � / -E, A' � / 1 •% I � `� \ \ \�AYNE T. PER Y3 \ \ \ ` _ - I / / / i // / / j / 413 IN, V11 \\\\ SOILTYPE fILIZE HALL ROAD FROM \ �\ \ \\ \ ❑ ) 1 / / PREVIOUS/PHASE / \ \ \ \\ I �\ / { I / ! / CONSTKUCTION / / -- �' *STA / j.. \ 1 ,V \ \3\ \\ \ \ \ % _. \ \ \ \ \ Pf�@P0 GRADES FROM \\ \ \ \ \� \ PREVIOU PHASE OF SAF / / / / / �� / / / / / / / / / / \ \ \ \ J 1 \ \ CONSTR CTION TO REMAIN \ \\ \ j % '.� / / / j / / CLASS I R f6 RAP/ \ \ \ %�; \ 4 1 / \ �\ \\ / / / J I J l / / / / / / 1 6NT CTQR NOTTb `,n \ � `` \ \\ I /� f / / CRASS STREA�TIL N. �\ \ / / 1 \ \ `\ \\ \ / / { I ) / TYP/ // / /CON-SPAN INS /BLED E /�S /' / - ` \ , \\ \ \ j \ / � �/ i / / / / / \ \ TEMPORARY SEDIMENT TRAP FROM° _ f T;MP 32 -50 / / � - PREVIOUS PbYASE OF CGrNSTRU7f0N TO / r / / / / / / / j / _-SF \, Nw'C�AI D TRUST \ \t\ LIMITS F /� \ \ \\ - - J 1 BIj REMOVED �� \\ / \\ / DISTUR`BANCE` (APP/R`OX. 16.9 AC) ,� \ \ \ \\ r \ \ \ \ \ I I / / / i /' / O TRUCTURES HAVE BEEN REMOVED " } I l I } } I I / / / DIVERSION � % f � �� '�\ \ \ \\ ♦ � � I � 1 I I I I \ \ \\ � � � SOIL TYPE- /_ _ _ � ! I / i � / / O \ / 3�B - - -TYPE -+ / J i 1 /0 c �/ - - - _ / ST UCTUAE HAS BEEN TRANSITIO AOM ` f / ;"v i i IN / \ SOILS i 47 C / _ ,REMOVED 1 / DI�VERSIO DIKE TO IVIDE, P. j i - - - - // // / /! ! l it I STANDI DIVERS.16N \ \ \ SOIL TYPE EXISTNG SEDIME ai�"''i, . j / / / / - I \ SWM 'BASIN BY 940 , \ 'N' '� J % \ ♦ 0 HERS\ —560— / , BIKE, TY1�. / / ICY.i' �,o /' / /' / / \ I C 1 , \ Q/ / / / / - - - 1 - - Uh�1ERSI0N,Dlf4E�'0- / / '_ `'i LIMIT OF { / / / / / i \ \ \ U LIIZET PO A/RY / / �- / REMA•I-N- NTIL ESC i � �s '', �' DISTURBANCE \� \ / /CONST RUCTI N E RANCE' #1 / - MPECTOR ALLOVITS f ` /00' � � / \ \ f NT / '� (APPI4OX. 16.9 A / / \ F 01V1 PREVIOUS PHAS OF / / REM .GVAL / iCONST CTIOW /' PERMJZTED' �' 55� J Q / i / / / 00 WETLAND DISTURBANCE THIS C� SOILS / / PHASE DIV-I1)E T P. r, ii /l/ - - - - Tmf)7P 2 -56/J I \ S� 1 \ \ \� \\ / / ' -� - - - - - -- UNITEp -LAKD I}I1�t lr ( �- / 1 ( /j // / 1 1 / \ \ \ \ \ \ \ - - - - - - - - ---- _._ - --- CF7R150 RAkI01V 1 �a ,�' �\ \ \ \� ` � � \� \ \\ \ °�\ � � ' f ,�1 , { ` � — •- �- � -,, � � ` �� - " — — — — _._. — '� .• ---� .. -- '" � � j �_... \ � --` l \ \ 1\ I I. -, - _ ` � \ \ I -- `' 1 I� 1 1 I 1 \ \ \\ \ -- \ o - - ��P 32�,5C�A'- � ..-- -" .,_ --'� 60_.,_ � - --. - -'r,. _- � � � \ �'�y f / \\ \\ \\ AT , \ - --560 L \ / V I \ / / 0 25' S0' 100' 200' - = \ \ \ \ \ 1 \ \ \', / / 1 - 0 Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434 -531 -5544 alan@alanfranklinpe.com z J � Ja 0 � J � O O � Q � I-- w030 0 > LLI U) Z w w 06 � z 0 z o � Q W O ¢ Cn °0 w D �NQQ W z z(f) o oQ o � W -VTH OF 1 Alan G. Franklin hc. No. 35326 ,O y. N A L ISSUED: 05 -20 -13 REVISIONS: SHEET OF 12 Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434 - 531 -5544 alan @alanfranklinpe.com z g W J J a. � O H Z � � O LLI J ��-zN a: zww o � � Q (f) w D � W�Q� °6 W 2 o �NQQ W z o� o N (n O Q O w LTH OF r .moo ✓,�- Alan G. Franklin hc. No. 35326 W '��&SiONAL ISSUED: 05 -20 -13 REVISIONS: SHEET 1� OF 12 Alan Franklin PE, LLC Civil and Site Plan Engineering SOURCE: N.C. Erosion and Sediment Control Planning and Design Manual, 1988 PLATE 3.07 -1 SOURCE: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, PLATE. 3.05 -1 Source: Va. DSWC Plate 3.12 -1 DRAINAGE SWALE DIRECTS FLOW Sherwood & Wyant TO SEDIMENT BASIN 70' MIN. 10% SETTLEMENT 1. SET POSTS AND EXCAVATE A 4 "X4" 2. STAPLE WIRE FENCING TO THE POSTS. 0.3' FREE BOARD 3" SM -2A ASPHALT TOP COURSE A EXISTING 2 X 4" WOOD FRAME DROP INLET TRENCH UPSLOPE ALONG THE LINE 1 1 ! I 1 1 4 1 2% 2% PAVEMENT WITH GRATE OF POSTS. 427 Cranberry Lane Crozet, VA 22932 - -_ 1 434- 531 -5544 II III„I I I III II II 6" VDOT #21A DESIGN FLOW DEPTH - 1 DIVERSION QITCH q 1.5' MAx. _ - - it -- alan@alanfranklinpe.com AGGREGATE BASE � 5---�� _ SIDE ELEVATION �` I i �) C `� 3'MIN. � - (l TYPICAL PARABOLIC DIVERSION Jill GATHER EXISTING GROUND I AT CORNERS 70' MIN. FLOW II "' PERSPECTIVE VIEWS -I�III -I�III ASPHALT PAVED WASHRACK 10' MIN. 4 03 % T FREER BOARD 12% - = r DESIGN FLOW DEPTH STAKE 12' MIN. EXISTING 3. ATTACH THE FILTER FABRIC TO THE WIRE 4. BACKFILL AND COMPACT THE PAVEMENT EXCAVATED SOIL. - - 2% 2 °/D FENCE AND EXTEND IT INTO THE TRENCH. FABRIC DIVERSION DITCH MIN. POSITIVE DRAINAGE 01 MIN. + II yl TYPICAL TRAPEZOIDAL DIVERSION WIDTH AT DESIGN WATER TO SEDIMENT I,III ELEVATION IS 4.0' ( TRAPPING DEVICE lj I : 1' MIN. II �- � �., VIII / •,;;:}� }� / PLAN VIEW dill I ELEVATION OF STAKE AND DETAIL A j= = z FABRIC ORIENTATION FLOW _ I 10 %SETTLEMENT MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS SET 11/" WATER HYDRANT WITH `I�III III -1 Flu OPERATION FROST PROOF HYDRANT 3' ABOVE o3' FREE BOARD GRADE AND 4' OFF EDGE OF _ DESIGN FLOW DEPTH I - f I r I I r , r r r J O 70 MIN. PAVEMENT = _ - - - t� EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. - - 2 %_� SPECIFIC APPLICATION - - - I---" I_I =1 1 =1 11 =i 11 =1 11 =1 11= I =1 11 =111' 1 1 -111 =1 11=1! II I I_Ti , Ti IT III, '' ,III E = , 111 THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE - z z INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER FILTER FABRIC o NOTE: A MINIMUM WATER TRAP OF 1" IS REQUIRED THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT U Q O WITH A MINIMUM WASH HOSE DIA. OF 1.5" EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT TYPICAL VEE- SHAPED DIVERSION z Z APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS Y'r` WIRE SECTION A -A IN STREET OR HIGHWAY MEDIANS. q II- 7•,� �' 1L1LI� I r -� -� I W O V G � J z CONSTRUCTION OF A SILT FENCE o > W f w INLET PROTECTION (WITH WIRE SUPPORT) p DIVERSIONS _ (T� ALBEMARLE COUNTY CONSTRUCTION ENTRANCE B SILT FENCE DROP C _! 4 SECTION E-001 LI. SECTION E-014 4. DETAIL NTS 4 SECTION 7 E -050 z N.T.S. N.T.S. Q Q N.T.S. 0 o W �- A �i) W A Plate 3.18 -1 SOURCE: VA. DSWC PLATE. 3.20 -1 SOURCE: ADAPTED from VDOT Standard Sheets and Va. DSWC PLATE. 3.08 -1 Source: Va. SWCC Plate 3.11 -1 O W �+ Source: Va. DSWC � � J 0 W O � ado 2 ACRES OR LESS OF DRAINAGE AREA: ENDWALL 06 do w o m PIPE OUTLET TO FLAT 6" . . • . ' • . . • . • . . . . VDOT #1 3: N J Z AREA WITH NO DEFINED COARSE AGGREGATE 1$' MIN• Q CHANNEL 3' TOE OF FILL O PLAN VIEW FILTER CLOTH -�- CULVERT Q _ (OPTIONAL) W W ° - Z O U_ r (DOWNSTREAM VIEW) O L W La o 0% VDOT #1 6' MINIMUM COARSE AGGREGATE o o IM-11 - SECTION A -A FILTER CLOTH KEY IN 6 " -9 "; RECOMMENDED FOR ENTIRE PERIMETER FLOW 7 3' o TOE OF FILL ° TYPICAL GRAVEL STRUCTURE SILT FENCE ° ° *DISTANCE IS 6' MINIMUM IF FLOW A � IS TOWARD EMBANKMENT A 3do (MIN.) L FLOW do 2 -10 ACRES OF DRAINAGE AREA: PIPE OUTLET TO WELL COMPACTED SOIL j T1I of " �C STONE COMBINATION PLAN VIEW DEFINED CHANNEL 6 OPTIONAL 3 FILTER CLOTH t �� y�ti +�4 +,� % + C>O Alan G. Franklin (OPTIONAL) 1.0 1.5 1g° MIN' ' t + - - o Lc. No. 35326 (DOWNSTREAM VIEW) -La sl ANAL y 0 % =III COARSE AGGREGATE FL 2'5 6, MINIMUM VDOT #i d SECTION A -A FLOW 2z FILTER CLOTH KEY IN 6 " -9 "; RECOMMENDED FOR ENTIRE PERIMETER 3' NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION TYPICAL EARTHEN STRUCTURE BASKET, OR CONCRETE. CLASS I RIPRAP ISSUED: 05 -20 -13 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED VDOT #3, #357, #5, #56 OR #57 COARSE AGGREGATE USING PLATES 3.18 -3 AND 3.18 -1. TO REPLACE SILT FENCE IN "HORSESHOE" WHEN 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 INCHES. CLASS I RIPRAP HIGH VELOCITY OF FLOW IS EXPECTED REVISIONS: E PIPE OUTLET CONDITIONS F ROCK CHECK DAM rG_-� CULVERT INLET PROTECTION ("H� T EMPORARY RIGHT - OF - WAY DIVERSIONS 4 SECTION E_os2 LI SECTION E- °47 4 DETAIL E-004' T°S. 4 SECTION NTs N.T.S. N.T.S. SOURCE: MICHIGAN SOIL EROSION AND SEDIMENTATION GUIDE PLATE. 3.29 -4 SOURCE: VA. DSWC PLATE. 3.20 -2 SOURCE: VA. DSWC PLATE 3.10 -1 SOURCE: VA. DSWC PLATE 3.09 -1 i L = THE DISTANCE SUCH THAT POINTS A AND B ARE OF EQUAL ELEVATION FILL SLOPE Compacted Soil _`•: �� '4 -Y` o - EARTHEN RIDGE t 4 18" min. { I 9. -Flow - - `q L B I I I I I I I I I I I I I 1 I I I I I III - 1LLL 1LLL 1LLL JllL LLL 1LLL J LLL 11111i�i ll 11 =111111 1111111111111111111fI1Nlll - - - - 0 11 I__11111112111111 1I 1 =I 4.5' min. DOZER TREADS CREATE GROOVES PERPENDICULAR s:. TO THE SLOPE. SHEET R 'Y ( J� � �'a I TRACKING SPACING BETWEEN CHECK DAMS K TEMPORARY FILL DIVERSION L TEMPORARY DIVERSION DIKE 11 DETAIL E_osl 4 SECTION E046 LI SECTION NTS 4 SECTION N.T.s N.T.S. N.T.S. OF 12 2" 2" 2" ANCHOR SLOT NOTES APPROXIMATELY 200 STAPLES REQUIRED PER 100 SQ. YDS. OF MATERIAL ROLL. ANCHOR SLOTS, JUNCTION SLOTS & CHECK SLOTS TO BE BURIED 6" TO 12 ". 12" MAX. 4:1 OR FLATTER 6" MAX. STEEPER THAN 4:1 Ilk EDGE AND END JOINT 4 TO BE SNUGLY ABUT- JUNCTION SLOT (JUTE MESH WILL HA CHECK SLOT* STAPLED LAP JOINT I LIEU OF EDGE JOINT) TERMINAL FOLD LAP JOINT 211 MIN. 5' MAX. 4:1 OR FL (JUTE MESH ONLY) 3' MAX. STEEPER —TAMP FIRMLY ANCHOR SLOT CV L *CHECK SLOT I 1" TO 2" —TAMP 'I�_ FIRMLY CHECK SLOT z_ VAR. VAR. o - PLAN VIEW n o STAPLING DIAGRAM I � TOP OF EMBANKMENT n n a tN ELEV. 532.00 DESIGN HIGH WATER d *CHECK SLOTS AT MIN. STAPLE FORMED FROM NO. 11 STEEL WIRE. 50' C C INTERVALS; 8" STAPLE MIN. LENGTH FOR SANDY SOIL. NOT REQ.'D WITH ALL 6" STAPLE MIN. LENGTH FOR OTHER SOIL. "COMBINATION" BLANKETS TERMINAL FOLD ... TAAAII I -IIMLY ,II TYPICAL TREATMENT - 1 (SOIL STABILIZATION BLANKET) INSTALLATION CRITERIA DETAIL SOURCE: IMPORTANCE OF NATURAL VEGETATION FOR THE PROTECTION OF THE BANKS OF STREAMS, RIVERS AND CANALS, SEIBERT FASCI N E ROLL PACKED FASCINE WORK SOURCE: VDOT ROAD AND BRIDGE STANDARDS FILL SLOPE SECTION Q SOIL STABILIZATION MATS SHOULD BE INSTALLED VERTICALLY Q 5' DOWNSLOPE FOR BEST RESULTS. Q Q 5' Q �Q Q Q Q Q Q r S" Qv Q 0�� 6' Q P 4� FRCP �. PLATE: 3.36 -5 NOTE: SLOPE SURFACE SHALL BE SMOOTH AND FREE OF ROCKS, LUMPS OF DIRT, GRASS AND STICKS. MAT SHALL BE PLACED FLAT ON SURFACE FOR PROPER SOIL CONTACT. 4' 2 II��IIII III- DIRT SHALL BE TAMPERED PRIOR IIII II I it = TO LAYING TOP TOE MAINTAIN SLOPE ANGLE SLOPE LINING (WET SLOPE) TREATMENT 2 POLYPROPELYENE NON -WOVEN LAP OVER BERM TRENCH INTO BERM AND PROGRESS DOWNSLOPE TOP OF SLOPE LINING CUT SLOPE (DRY SLOPE) IF ff (NEEDLE PUNCHED) _ -� TREATMENT -2 I =j GEOTEXTILE FILTER _ F,L(ERV 'sO RCe�ERI III CLOTH (BEHIND PBOTE PQV�F III_' TREATMENT - 2) - OF WNjR �iIT' SOIL `�� BOTTOM OF FILL SLOPE Il llill��. —�: ITL- III. BOTTOM OF CUT SLOPE BOTTOM OF CUT SLOPE 4' OR SHOULDER BREAK POINT TYPICAL TREATMENT - 2 SOIL STABILIZATION MATTING & SLOPE INST. +t—j %DETAIL N.T.S. ,T.S. PLATE. 3.22 -4 SOURCE: Adapted from VDOT Drainage Manual WILLOW MATTRESS CUTTINGS BETWEEN RIPRAP METHODS OF ESTABLISHING ING SHRUB ZONE VEGETATION FILTER CLOTH U N DERLI N ER (PREFERRED) GRANULAR FILTER TOE REQUIREMENTS FOR BANK STABILIZATION DETAIL E-077 N.T.S. cj SECTION SECTION 2' S'Ource: VDOT Road and Bridge Standar-c Plate 136-4 TYPICAL TREATMENT - 2 C SOIL STABILIZATION MATTING INSTALLATION ORIGINAL GROUND ELEV. *SEE PLATE 3.13 -1 N.T.S. PLATE. 3.13 -2 N 67 CU. YD. /ACRE /4'MAX. (EXCAVATED) FILTER CLOTH ORIGINAL GROUND ELEV. COARSE AGGREGATE ** CLASS MIPRAP CROSS SECTION OF OUTLET CLASS 13RIPRAP LENGTH (IN FEET) _ 6 X DRAINAGE AREA (IN AC.) DIVERSION DIKE COARSE AGGREGATE EXCAVATED / / FILTER CLOTH ��.�� AREA * COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) ('G_ TEMPORARY SEDIMENT TRAP #4 5 N..T.S. T.S. SECTION ',SOURCE: VA. DSWC E -060 N.T.S. PROVIDE ADEQUATE POLYETHYLENE CAP STRAPPING TACK WELD PERFORATED POLYETHYLENE DRAINAGE TUBING, DIAMETER VARIES (SEE CALCULATIONS IN APPENDIX 3.14 -A) 199'? TOP OF EMBANKMENT n n a tN ELEV. 532.00 DESIGN HIGH WATER d (100 -YR. STORM ELEV) MIN. 2.0' ELEV. 529.00 2 MIN. 3.0' MIN. 0.5' MIN. 1.0' j . 1000 C.Y _ :..:. �.. ' z� � J DRY " STORAGE .. _ — . 421' 0 CMP RISER CREST W/ ELEV. 527.2 ...'. .. 60" ANIT - VORTEX DEVICE I X-1- X ELEV. 527.20 1128 C.Y. x I " WET " STORAGE ?i = 8" TEMP. DEWATERING ELEV. 526.0 ., 3' °vY ORIFICE W/ 10" FLEX. TUBING j ELEV. 526.00 95 LF OF 24" RCP @ 1.05% SEDIMENT CLEANOUT POINT 1 INV. 519.00 ELEV. 525.00 INV. 518.0 DESIGN ELEVATIONS WITHOUT EMERGENCY SPILLWAY (RISER PASSES 100 -YR. EVENT) SEDIMENT BASIN DESIGN ELEVATIONS SECTION 2' S'Ource: VDOT Road and Bridge Standar-c Plate 136-4 TYPICAL TREATMENT - 2 C SOIL STABILIZATION MATTING INSTALLATION ORIGINAL GROUND ELEV. *SEE PLATE 3.13 -1 N.T.S. PLATE. 3.13 -2 N 67 CU. YD. /ACRE /4'MAX. (EXCAVATED) FILTER CLOTH ORIGINAL GROUND ELEV. COARSE AGGREGATE ** CLASS MIPRAP CROSS SECTION OF OUTLET CLASS 13RIPRAP LENGTH (IN FEET) _ 6 X DRAINAGE AREA (IN AC.) DIVERSION DIKE COARSE AGGREGATE EXCAVATED / / FILTER CLOTH ��.�� AREA * COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) ('G_ TEMPORARY SEDIMENT TRAP #4 5 N..T.S. T.S. SECTION ',SOURCE: VA. DSWC E -060 N.T.S. PROVIDE ADEQUATE POLYETHYLENE CAP STRAPPING TACK WELD PERFORATED POLYETHYLENE DRAINAGE TUBING, DIAMETER VARIES (SEE CALCULATIONS IN APPENDIX 3.14 -A) 199'? n n a tN 3-36 Lu Lu U d 2 X�_ x j r x z� � J x> � a x I X-1- X ^+ x I ?i = 1 X ti 3' X j IM 1 _ I La Z n n a tN o sr LO n o LO Lu Lu U d 2 K;io�',,- j r + -8FEi 9 z� � J °1. =l FZJ I 'jin x I GNENERAL STAPLE PATTERN GUIDE AND D RECOMMENDATIONS FOR TREATMENT - 2 6,1 PLAN E -040 N.T.S. PLATE. 3.14 -15 SOURCE: USDASCS A DEPTH VARIES AS REQUIRED FOR "DRY" STORAGE WET "FERNCO- STYLE" COUPLING STORAGE DEWATERING ORIFICE, SCHEDULE 40 STEEL STUB 1 -FOOT MINIMUM, CORRUGATED METAL RISER DIAMETER VARIES (SEE CALCULATIONS IN APPENDIX 3.14 -A) NOTE: WITH CONCRETE RISER, USE PVC SCHEDULE 40 STUB FOR DEWATERING ORIFICE * DRAINAGE TUBING SHALL COMPLY WITH ASTM F667 AND AASHTO M294 RECOMMENDED DEWATERING SYSTEM FOR SEDIMENT I�BASINS DETAIL E -078 N.T.S. PLAN VIEW I_ D _I TACKWELD ALLAROUNI #6X12" SPACER BAI (TYPICAL) PRESSURE RELIEF HOLES 1/2" DIA. A RISER DIAMETER SECTION A -A ISOMETRIC ANTI- VORTEX DEVICE DESIGN 9AR SIZE i MIN.) DETAIL TOP STIFFENER (IF REQUIRED) IS _X_X AaGLE.WELDED TO TOP AND ORIENTED PER- PENDICULAR TO CORRUGATIONS. TOP IS GAGE CORRUGATED METAL OR 1/8" STEEL PLATE. PRESSURE RELIEF HOLES MAY BE OMMITTED, IF ENDS OF CORRUGATIONS ARE LEFT FULLY OPEN WHEN THE TOP IS ATTACHED. CYLINDER IS G9GF-CORRUGATED METAL PIPE OR FABRICATED FROM STEEL PLATE. NOTES: 1. THE CYLINDER MUST BE FIRMLY FASTENED TO THE TOP OF THE RISER. 2. SUPPORT BARS ARE WELDED TO THE TOP OF THE RISER OR ATTACHED BY STRAPS BOLTED TO TOP OF RISER. N.T.S. PLATE. 3.14 -10 E -080 N.T.S. Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434 - 531 -5544 alan@alanfranklinpe.com z w a a J J J O O Cj ry H z � 7 Q L ~ z O W Q 0 �..� 06 z ° � � w (1) L.L�oD U-1 0 Q 06 m Q �NQz Qw o w v� ;7 0 0 N < ry LIJ 0 IMA TH OF Alan G. Franklin hc. No. 35326 W AV �_&NAL ISSUED: REVISIONS: 05-20-131 n n a tN o sr LO n o LO j r I X x I ?i = 1 X ti 3' X j I K" }� cv Source: Product literature, from North American Cron Plate ?,�ti -6 GNENERAL STAPLE PATTERN GUIDE AND D RECOMMENDATIONS FOR TREATMENT - 2 6,1 PLAN E -040 N.T.S. PLATE. 3.14 -15 SOURCE: USDASCS A DEPTH VARIES AS REQUIRED FOR "DRY" STORAGE WET "FERNCO- STYLE" COUPLING STORAGE DEWATERING ORIFICE, SCHEDULE 40 STEEL STUB 1 -FOOT MINIMUM, CORRUGATED METAL RISER DIAMETER VARIES (SEE CALCULATIONS IN APPENDIX 3.14 -A) NOTE: WITH CONCRETE RISER, USE PVC SCHEDULE 40 STUB FOR DEWATERING ORIFICE * DRAINAGE TUBING SHALL COMPLY WITH ASTM F667 AND AASHTO M294 RECOMMENDED DEWATERING SYSTEM FOR SEDIMENT I�BASINS DETAIL E -078 N.T.S. PLAN VIEW I_ D _I TACKWELD ALLAROUNI #6X12" SPACER BAI (TYPICAL) PRESSURE RELIEF HOLES 1/2" DIA. A RISER DIAMETER SECTION A -A ISOMETRIC ANTI- VORTEX DEVICE DESIGN 9AR SIZE i MIN.) DETAIL TOP STIFFENER (IF REQUIRED) IS _X_X AaGLE.WELDED TO TOP AND ORIENTED PER- PENDICULAR TO CORRUGATIONS. TOP IS GAGE CORRUGATED METAL OR 1/8" STEEL PLATE. PRESSURE RELIEF HOLES MAY BE OMMITTED, IF ENDS OF CORRUGATIONS ARE LEFT FULLY OPEN WHEN THE TOP IS ATTACHED. CYLINDER IS G9GF-CORRUGATED METAL PIPE OR FABRICATED FROM STEEL PLATE. NOTES: 1. THE CYLINDER MUST BE FIRMLY FASTENED TO THE TOP OF THE RISER. 2. SUPPORT BARS ARE WELDED TO THE TOP OF THE RISER OR ATTACHED BY STRAPS BOLTED TO TOP OF RISER. N.T.S. PLATE. 3.14 -10 E -080 N.T.S. Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434 - 531 -5544 alan@alanfranklinpe.com z w a a J J J O O Cj ry H z � 7 Q L ~ z O W Q 0 �..� 06 z ° � � w (1) L.L�oD U-1 0 Q 06 m Q �NQz Qw o w v� ;7 0 0 N < ry LIJ 0 IMA TH OF Alan G. Franklin hc. No. 35326 W AV �_&NAL ISSUED: REVISIONS: 05-20-131 ,i' \ l ` -`�1 \ 1 \\ I I t \ \ \ \ ` `. t \„` -' J_ ,- �j�_ -..- ' L� .I`` I i 1 // / /'/ /'J I - -- -`\•� \\ ,/ ', � �\ � / � i�- - -_ -�G-, � \ \\ \ 6t I � / I\ \ `' ._..-- -'�C'• -'' �-'" �„ I II t,I t t ` t II�'�'!`'I ' „- /�„..- _. -- .'_...- \ \ \ \ ' / `O\ /' \ / � + j-''- � 1 , `O I � \ \ � � \ \ o \ t / •" f \ \ \ i A „. -.-• -_ '- ". � � , '(�i it � I � �'+; t t � _ /, • `� � \ : � I l , .p �� / � -=��` '\ '\ '` ' \`\ b EE RWO � D - � -(ry��- - �_ I � � :;�, �� ` ��I _ ./•- -=- -_-� -, ,' -'� 1 1 f•- •--',y \ i''1 .� >/ 1 I , /i 1 1' l •- -- - �fl/ 1 ` t�`_I. v _ ` J••-' \ J / o y �' 1 / i OT �'' ^�.I tti' ?'I /'• I i I // POINT OF ANALy fs" > \ \ > L 1 / V/� - - ".- �- _ -._7E- J J t .Jl ' i ! // r/ -_`. \\ ` / .� t r'l - ---- ! _ / ( / / �`✓ � 1, t `y � t\ ✓ t. - -� ,/ } � 1`__' / ' `\ -�� - -- '- -_' - _ - _ ,�- -'' --- I , I / ,/ / / / _ ��__./ \ I '.' \ � ^ 1 i 1�, - // _ I ; r �� tc PATH Y .' �\ � ^ .i' -`\cam. ..- i + / \ ./ r � \ + 1 1 , i� % / 1 i ''. i � / '' "'" \ , j � / i-"- .' •� \ ........ .... . / "`. alt •: i \ \ / I I , \ v3 c� I \0. IN, \L , Zg \ � r' ^\ ' � ` j � \ ` / t \ /k\� 't.- _ _ \ �-- -._._ \ \ / � � / / -_'"' - � \ l 4 I I \ ♦ r /' I ` � \ ` � I I -- �\Xk, p� �'" �- \ ,.__ _ - � ��.�` `, - �+. - -~ t--._ ` -"-\ \\ \\ ,r'' -.._ / / f o -' \ \\ \ \\ , t I \ ♦I `\ 1J ' . � \ \ r, i I \ \,, ` , � _ _ I I � Il DRAINAGE \ , ,- - -� \ \ t - 1 \ � \ I ' + I \ ,' bRAINAGE 1'. t , ___ -- \ AREA LIMITS- o ` ; , \` / AREA LU rrS' - / // \\ I' ' �i \\ // Il ' \\ L -------- � fl\ `\ ,,1 � \t" _ - -~\ ,;- -"•.•4.. --' 1 - , , -cy� \-�h \ - -- / / t �' ` / J jl �- -� \ \ \ \ \\ \ l 1 f \ \ \ , j/ ; 1\ �� __ r -_ -J l 1 - --- \ _ \ _ \c ' 1 N \ �. \ \ I r ,1 \t1' `_ _ -,` �'. _ / / t I / \ } r // [ \ \ \\ \\ ♦ \ I \ r �' r- -r }-- - ~ ~ I'` \ r J \ \ 1 I \ I ( -ice r , } ` t J / ♦ t 1 \ \ L fir J N _ p - c / r� 1 I , � ) -� . --'' � ' / J / = I \ ��--' -- , fro _ � -- - _ - \ \ Z ,, , \ r , D x: 25.56 Acr( , \ -~ s __ -- ��, "f CP _ ` -J C = 0 ■3 \0 I, i I } O. \ \ \ \ L 1y %- 1 - -_,�_ �\ I I� \ I I I \ \ \ ` .._•`"' `�J Jr--- r-"l_`_J '` --iJ I I \ t - ��9.04 m ins J \ /-1 \ \\ tl '\ � \`\ `•C / �/� J T_'--- •- _- ^'-- - = =_i_ -- --` --- S� �/ o S' \\ ._• --'� /' � // 1 I / / i /,f % i� \� \ 1 � \1 \ � j �/' I L - _J -JC.7i t ' j I / I I I I I� I I , , /,, r f 2 (ire) \ 23.4\1 c \ \ I 1�1 �_ I L_ , Iz \\�/ \ 0 1 \ i G t "-1�I J L -_� ,1 �LLJ� / \ \ r - - - - -- ' I I L_J L }I ;/, � l , � � , / ; 10/ (pre) � 31 1�8 cfs ` \ \ � � �_ , 1 r- �f_J l / l l \ , - -- _ -- lJ j� - - - - -- 1 Y V V I \ i (, Q / (p ) ` \ �\ w - - -- ` -I C�'� "fir` ^ \�' '1 =� J <,> ' a ( �\ _ / --� I -, I ----.� J I / 1 ` � I- l •/ r- - - - - -� -�WI r / / I _� Irrr -- ' /' •-' `- - -� / 7 / `_ ' /, '' / / ' / � '/ 1 / \ `\ \\ \ 1 �` l l + / r♦ -1 �'+ L__ t f / / / / 1 \ \ t ■ 1 t / ' ;� _ r - - -s \ "� /� / % / J /'- \ \ \` \\ % rl 1/ ' i L__J `l j / /' I I L - - - - -j IV i \ l �/' , L l' r� r- L.4J I J tc/PATH /' // /f \\ `� !' 1 \ I l l ,� ,� / - I ' / - -� � ' I ` ; I 1 I ' WALLOW GLEN I / _AR�A QIY117S 1�_ / ! 1 i ■ I I 1 l f _ - -`�\ (-. r' I \ 00 r \ { ,xY' • I I I I I , I \ n \ \ `rn j�/ t , / / / 1 ! I 1 I / t G, - - -- • ` \\�` J�� \7 I + ' \ I I \1 I / \LJ i \ / \ \ I \ X\ t ' , �.J t i !. � 1 / u I \ \ /* / ♦ 1 /�. -- 11 \� \ \ \ \ �� J / I � � � ___ ( I I I � � _- --�-�- �- � ' r'i /, � , rte- --I � I � 1 J , f i`� /, I I i t , l _A -1 4r�{ \\ ro 1 � \ � � J \ / / /. �� -__� `� �, \ �\ -..., k\ � \ // // // i / / d',n • L- a� \ � \ � \ \ `\ \\ \ ` I \ \ `, 1 1 1 1 • °• X \ I I \ \ � \ d\ 1 \ l r 1 rl tZ 1�- -�/ \ • \\ \ I y I i j I I \ 1 I �` 1 1 / - - - - -- ° - -___ -- - - = .�- - - -- _- - - - - -- �_ _ __ ___ ___ ____ _- - -_ - -- -__ - ---------- - - - - -- - -- - - - -- - -- �A�CI®�TA�Le \IY1IET�I ®D �\% ®� SJHIEJ��C i9 - -- - - - - -- ------ - - - - -- / L---- - - - - -- - - - -- - -- ° - ~ -- - - - - -- - -- -- - - - ! - -- Frc° ct �n ®� Allen L- Dl�KE,RS�I�`.:�OAD A TE. 60Y J �..� � __ ..�. �. __ �mm. _ ..dog __ ICJ%( BOO RTE. 6(J66 _ --------- - - - - -- - -- n - o f ----- - - - - -- - -- --- - -� - -- - - - -�� - - -- __ _- --------- - - - --V ------ - - - - -- - _ �� - - - - - -- ___ -- - - -- '`a �� - - - - -- � -- --- _ - 7 - -- _ - - -�(- ! - - -- - - - -- 1 p p /► �I ]� /�► �r - Y �' ^___-- _- URk1IIVHlaE ~• \ \ \\ �- ��-\ - - - - - -- �! ! ' I � __.- AREA LIMITS \ \ \' \s \ + -- �� yt Watershed ID: Pre - Development Drainage Area: 25.56 Acres --------- - - - - -- c- factor: 0.30 (see worksheet) __- ; tc: 19.04 mins. (see worksheet) _;� % � � / J �� r/ ,� // ,/ ,' ,/ r__ -- I' oy , �-' t _ / //, -�� oo S�.LJ I / / / l \ \ \ 1 I j ' J / ' �' ' I ' Q(2): 23.41 cfs ! / / / / ,\ \C ` j1\ l / O� a \ 1 / �. 1 \ \\ _ �\ �\ LL-1J1 r - -1 - / , j J / / ,/ / r -= -- Q(10): 31.18 cfs C- 1 1 �°n I C' r \ + \\ r _�\t \ I ( , I J �/ J f, \ > , I r / ' J / ! . , L_�_ /' - -- -'' a > , - --- ____ - -- - - - -J I 1 / ' r'` 1/ ,' / /-'' J/ % ,' ,' ,'' /� �\ i Time of Concentration Worksheet - - - --, \ I _- •-- �-- -- -'_">�. -_. -- } \ \ � (�__ . __ -- - 009-__x- ---__- `.\ �� t i , I 1/ ----- - Overland Flow Time Source: Seelye Chart as modified in VDOT Drainage Manual (Fig. 1 I .. •'�'' -'- - � -'r;\� , I r 1 / , ,/ 1 / / r ' 1 `' 1-13E) 1.5.1.1 on Page �� `�-- - - -- --------- - - - --- \ r -' , r sZ-� --- - i ,1 /' I ; ` /l �I it ; \` Notes: - - -- `'y may_ ' ' -__ I ' n I I ' i / ! 1 1 , ' 1 I , 1 + _ I _ , I I \ 1) Length of overland flow always <= 200 ft �a - - - -_ L -�, ` I ' ` ' I I /1 /'/ J/ JJ /' I 1 ' ' f L_ -� ' i ` 2 Calculate a separate Tc for each round cover condition along the flow path m 1 \\ I I \1 I t ° - -- - - - - - -- --Ili o r P 9 9 P - - - -- j 4 t / / i J / II •� I + ' ' J I , 1 I I -- -1 r - -- I I , I , \ \J � y � r--� `•. I �- / / 1 � / i I I I I I --- - - - - -- ------- - - - - -- lu , _ ` 200.00 Enter Length of Strip (ft) S ample "C" values: es • - ---------- -- -- - - - - - -- - 10.00 Enter toe / or ft/100ft 0.22 Dense grass ---------- n 0.30 En t er Rational Method "C" value 0.28 Average ra s s 10. T_ 0 36 Poor grass r0 -- - - --j 10.751 Result Tc ( ' mutes ) 0. 48 Bar e soil T rn -7L -- ------------ � - ___. - 0.90 Pavement - - - - -- - - ° - - -� t -------------------------------- - --- - -- ' - -- - ___ , J _ 1> °o ------ - - - --- - Shallow Concentrated Flow Time L___- _________ ________ _ _ _- _ _, -,__ - - - - -` _____ -.` ��./ \ Source: SCS Velocity Graph as published in Virginia Erosion and o °> \ \\ // I /�- -- �\ I I r" �� L ---------------- -- �• - Sediment Control Handbook, Third Edition (Plate 5 -2 on Page V -12) a1 r / �.) 1 `------------------------------- - - - - -- - - - - - -- °� ---------------- - - - - -- Notes: 10 ° I / / \ ------------------- - - ---- - ____--------- - - - - -- P ground g heflo p th _ - 1) Not intended for well defined channels see channel flow calculation ----------------------------------- - -` \ oog - 2) Calculate a separate Tc for each ro -�J - - - - - -- 1 0° _ n t w a � } � _ _ ^_- _ -___ -- ---' ___ _-------- _- _--------- _�`y'_ 233.00 Enter Length of Flow (ft) \ 0. \\ `" r - -x -- _ ._-- ` _- _x Enter -- - -_ -- `- 9.65 Enter Slope (% or ft/100ft) 0. o \ _ ____r - - - - -- - _ =_--- ___ - -- - -- - _-------- - - - - -_ ----------- - - - - -- 0.77 Result Tc (minutes) IF UNPAVED -------------------- 0.60 Result Tc (minutes) IF PAVED CP Channel Flow Time - -y -- __ _- ° Source: Kirpich Chart as modified in VDOT Drainage Manual (Fig. 1.5.1.2 on Page 1 -14) _�- - I o / / f Notes: �. - ' _ - - __- - - - - -- - -- - `�\ �• ,� '` 1) For small drainage basins. 2) For concrete channels, use 0.2'Tc / _ 1388.00 Enter Length of Flow (ft) AIRPORT ''� �, `�`� 52.00 Enter Height of most remote point along flow path above outlet Result Tc (minutes) Pipe Flow Time Assumes 10 ft/s velocity in pipe S - 0.00 Enter Length of Flow in Pipe (ft) Co. /f�� _ / 0.00 Result Tc (minutes) �'�' '` °• Rainfall Intensity (Albemarle County, Virginia) -' S' / - Return Duration Intensity °. � /' _ Period (mins.) (in /hr) m 2 19.0 3.1 5 19.0 3.6 10 19.0 4.1 25 19.0 4.6 / s 50 19.0 4.9 100 19.0 5.4 _7L �i° '� - ------ - - - - -- Intensities derived from NOAA Atlas -14 Rainfall Precipitation Frequency Data 7L "� CA 0 '` 0 50' Date: 5//2008 Designer: AGF Weighted c- factor Worksheet Cover Type Area c Undeveloped Land 25.56 0.30 � zw Q J w J O Cj c- factor = 0.30 100' 200' 400' Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434 - 531 -5544 alan @alanfranklinpe.com p,LTH OF r Alan G. Franklin hc. No. 35326 W O 44, 1��_PLONAL SCALE: NONE ISSUED: 05 -20 -13 AGF REVISIONS: SHEET OF 12 z � zw Q J w J O Cj noo Q ~ z W Q z W �J' � 0 w o o ZD w ° � LIJ w Q CL 0 06 :2 J cN w Q> w Q w � W Z 0 w Q � o Cn p,LTH OF r Alan G. Franklin hc. No. 35326 W O 44, 1��_PLONAL SCALE: NONE ISSUED: 05 -20 -13 AGF REVISIONS: SHEET OF 12 x _ / \ �- - v - n i RATIONAL METHOD WORKSHEET r �\ r ,- �' I ; ' Al ormwater Detention Compnliance Project: �� ;ino�� GIlern �� \ 1 / i : I I I I (I h' ` BIO- DETENTION POND __� �- �� Ii ,, ,,. Date: �/6/� ®0� \ \ \ '__ i, ; Post Development Peak Discharge Analysis - 2 yr storm Designer: AGF \ ` \ - _ �--� ��'- `- I� ) II }! Drainage Facility `, v v D.A. = 2.03 Acres --__ v _ _, I! 1 I; ` �• \ vv v `\ �� PHASE 1 , SWM /Amenity Bio- Bio - Filter Bio - Filter Total Watershed ID: Biofilter #2 ` �� `\ _ I -- \ - , I'i d; I t Drainage Area: 0.22 Acres ` \ �\ `\ C - 0.70 UNDER I \ \ �J'' /� _ y__ _ +r_`!{ -�' , Time Pond Detention #1 #2 No -SWM Q2(post) Description �; \ minutes (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) c- factor: 0.62 (see worksheet) 1 \\ \, Q'0 tc - 5.00 mins. CONSTRUCTION I+ ; i� !I & Bio - Filter #1,#2 tc: 5.00 mins. (see worksheet) DEEIWD ) i 5 3.93 0.41 0.00 0.00 12.24 16:58 duration = tc for No -SWM, Bio- Detention, \ i r , / _ _ }ice_ 11.11 1.04 0.61 0.00 9.25 duration = tc for SWM /Amenity Pond 0(2): 0.69 cfs a 1 I 1 t„ ;- \ r Q2 (peak) k) - 1..40 cfs � }, h -� � 16 11.39 1.19 0.70 0.07 8.08 21.43 critical duration time for Bio- Filter #1 Q(10): 0.88 cfs • J " ` BY OT y ! - 7. ;� � � � i`! it 'i �):. _- �' 33 12.04 1.41 0.48 0.25 5,38 19.56 critical duration time for SWM /Amenit Pond Q10 (peak) - 2.53 cfs / s } ;., ` i:.' °,; • 1r ; I 36 12.38 1.43 0.45 0,25 5.10 19.61 critical duration time for Bio - Filter #2 1 .` i>, ) } 1 I / / FS gip.' r. '�'•(' • i. I Time of Concentration Worksheet Weighted c- factor Worksheet �s \\ �� i , /� � \` ;.r ;.,Y, '•,` 48 12.01 1.45 0.38 0.23 4.22 18.29 critical duration time for Bio- Detention Basin 1 / I �' ' J �•: ;:. .. ,• ;a I >>>> 2(p ) 22.01 cfs < (pre) = 23.41 cfs Overland Flow Time Cover Type Area c Sou r ce: Seelye Chart as m od'f' ed in V DOT Drainage Manual (Fi g. Paving/Rooftop /Roofto p 0.09 0.90 � �. '`• a ml � E _ SWM/AMENITY POND 1.5.1.1 on Page 1 -13E) Developed Open Space 0.12 0.40 J ' _ ' � / '^''{h , - . rr'e' ` . •fir. 4 t �' _ � / � � �''� ' �,�.:. ��r �� • "� �� }- ° �• � F� � � Post Development Peak Discharge Anal sis 10 r storm Notes: -- -.'-_ ,• / �. •,�,:' 'siS� "�%��;" i ,'v>• ,;:;r- , - - _ _ - D A. = 17.6 Acres - k "t F:.4 I g y ,,,- Y,�,.,s,�:� ' ",.;'� , �'� Drainage �:r.': - - Filter Bio - Filter Total � D.A. M�. -�� `' i�1 SWM /Amenit Bio Bio 1 Length of overland flow <= 2 f � •. *�� y g Ys 00 t i / ' �; � �;;;. 2 Calculate a separate Tc for each round cover condition along the flowpath ' / _ ' - :.�. ; .`uR ' "'% =;'' p g g p c- factor = 0.62 _ v ' e = 0.67 PHASE 2 '/ \ ` ;:: ° ;.• s. i Time Pond Detention #1 #2 No -SWM Q,o(post) 25.00 Enter Length of Strip ft Sample "C" values: /� _� ' °i s a } I i ` � •,� .:; s .' L} c'� Y,1 - r �,. Description Q � � - _ -` - -_ ;' `�. . � ,.•� i s, , ; °? minutes cfs cfs cfs cfs cfs cfs 25.00 Enter Sloe /o or ft/1 0.22 Dense grass - / { a� �'� , Slope ( ) g ,- t� 11.67 mins. �y :r _ ��; Y.;.. �' ... 5 , , - � ,,trs� -. .:r`;;•.;;�;� <,,;,Y "-�;. �..�� "5.,_��''' - 'y�-,:., -�w.. ; .',- , �_ �; o� 5.33 0.92 0.58 0.00 15.71 22.54 duration = tc for No SWM, Bio Detention, &Bio Filter #1, #2 1. 0.90 Enter Rational Method "C" value 0.28 Average grass t `: _ �.,. �.�, ,. `n „� -7F:. a' 16.24 �;r; j °�': ��-�" , � 12 1.45 1.08 0.25 12.09 31.11 duration tc for SWM /Amenity Pond, Grit. dur. for Bio - Filter #1 0.36 Poor rass g - 2 (peak) 12.4 1 cfs - :.. `. y r ::, %t.k' <,..:., I \ , -_/ I / ti- 1� ew. �:r •1 >��'..! '•4:a�:�C R. ^;,�3� %•'v. iY�: I 1,26 Result To (minutes) 0.4 Bare it . ;� r,=• ;:_ 24 18.89 1.74 0.78 0.45 8.75 30.61 crit.duration time for Bio Filter #2 0.90 Pavement r i r' - ; \ \ t, ry'', "' ?N`,.�`:;''.�' i ° 40 19.57 2.33 0.59 0,37 6.59 29.45 critical duration time for SWM /Amenity Pond Q10 (peak) 18.99 cfs { - \ • fi'° - 'r. 52 19.36 2.53 0,50 0.31 5.62 28.32 critical duration time for Bio - Detention Basin \ f / i R 'rti, Shallow Concentrated Flow Time - I - i + �� -�\ :� °'• :- :':-;-�: �. �`�`�• ;: 1 I »» Q,o(poSt) = 31.11 cfs < Q10(pre) = 31.18 cfs Source: SCS Velocity Graph as published in Virginia Erosion and / - Sediment Control Handbook, Third Edition (Plate 5 -2 on Page V -12) Notes: -'- ----, � ` •� ' / ,� - n , r "y`- � i,'.- - - - - -- t+ v ■ I I v+ i\\ � + t 1) Not intended for well- defined channels - see channel flow calculation 2) Calculate a separate Tc for each ground cover condition along the flow path �\ ,; / 1/ \ I ! (X-Hatched Area) i 0.00 Enter Length of Flow (ft) '"\ �� \ -- - \ \j \ 11 I �•�v�` - -\ I i + r 4.00 Enter Slope (% or ft/100ft) \� `� DRAINAGE ' 1\ DRAINAGE t I i I i tc PA - -I ; D.A. = 5.56 Acres \ \ 0.00 Result Tc (minutes) IF UNPAVED / AREA LIMITS ITS. -- ' � � j ' \ � � \ �\ �� AREA L,.I�A/fITS �� C = 0.46 r' ,' \ r -- - - -�� 1 0.00 Result Tc (minutes) IF PAVED J ----�\ ` % \ , . ' + \�_- L ------- NOT IN THIS PHA E � ----' \ � -- -- `' � '� � .� �,• /' - mins. 1 i Channel Flow Time I �. ' � j � f to -- 5 Source: Kirpich Chart as modified in VDOT Drainage Manual (Fig. 1.5.1.2 on Page 1 -14 + ` / 1 / i �\ 1 L ____- p 9 ( 9 9 ) J BIO-FILTER #2 ,''� \ , t , / :,� _ o. Q2 ( pea k) - 12 24 cfs - I , Notes: ,. 1 I -------- 1) For small drainage basins. fi - e / I t I 1 \ J ` \ �� /� I - r r 2) For concrete channels, use 0.2 Tc D.A. = 0.32 Acres , / �� / �_; I 10 (peak) - 15.71 cfs , �-- 0.00 Enter Length of Flow (ft) / i I I 1 71 1 ' ` ZT 52.00 Enter Height of most remote point along flow path above outlet C - 0.67 / �/ \ ` \ I i 4 I -- `` '� y� J/ - 1 r L BIO- FILTER #1 i _ _ , - I -_� 0.00 Result Tc minutes r 11J( / \ ` �- 'mac,\ J F- Pipe Flow Time ;1� I \. \ D.A. = 0.32 Acres + _ <`y Assumes i0 ft/s velocity in pipe Q2 (peak) 0.25 cfs , ��` \ \ _ t �,\ 7 // ��s ) _ ___ 175.00 Enter Length of Flow in Pipe ft ` ° / i ( I t �� \ \ C' = 0.67 `Jr_y ��, di �0�� cp 'rs - ` -� ^ -- g p O _ \ ii \ \ \ PHASE 2 � , � , %` - -_; T - - r 1 Q10 (peak) 0.45 cfs , I RASE 2 ; , I \ - I I 0.29 Result Tc (minutes) �� / / j + , '� r , , i , II ` + ` \ tc = 5 m I ns. ,`�_� I Rainfall Intensity (Albemarle County, Virginia) w� ; �� •r/ / �\ 1 \ u ! , Q2 (peak) - 0.70 cfs L_ -_ S � .` / f i I , 1 M \ I' III _ --- .I� -.1c�( Return Duration Intensity L \ ,' ` ( I I 10 eak - 1.08 efS- --r- -r � / II Q � II r - - - -_ Period (mins.) (in /hr) \ `' �� r 1 \ \ unW � :� �_- � r--- ��>_,_,� -\ 2 5.0 5.2 // �. / / ) `\ \\ II +� J I -_ -- ' �' 'Jr� - - - - -- 5 5.0 5.9 1 / �, / I J / i i \ i 111-- / - -- --__ - - - - - t_ - - , 10 5.0 6.7 j Ir I ' r \ J 1 i I "� I r- - - - - -- \\ \\ / \\ \\ 1 I / \ \ ill 1 I 1 � - - - -- J r~ IrYt - - -� \ \ \ \ \ J ; 25 5.0 7.5 ti , \ \ I+a \ l _ u - --+ 1 __ r -- _ \ \ \ / I r O \ � I r ILL -- - - -, + I I I 100 5.0 8.8 _ , _� r- - - -� / Irl I I l r t / L - - - - -� L J ,- I I ( .\ \ \ -y.- Sn �I�Cjd J intensities derived from NOAH Atlas 14 Rainfall Precipitation Frequency Data \ Ir i / / 1 'J W L -� - - -� i \ ` ` �� - i4��- _ =_T -- T - P q Y C/ T f \� l % ' ! 1 `` \ - -- \�' I I I I I I �RAI � AGE/ / t `" BAR L m Its r J -' y\� �i / ! DRAINAGE � `� i -J gr ► �� \ \ J` r \_ -'' ARFA LIMIT I I `\ CO" ` \� -- \\ \\ r �i / 1 \ -�\ �\ / r. \, ' I, t t I I , ,/ � \ I i� i/ r_ -� 1 � � I f / �' � ` I I i � s' a, s / r'l -,- ,` .�'/ t i •� I / I � Ih% > j ,r/i-- - ---• , ,' ��.�Q\` h�L\ `\� I '� + I \ + I \ \LJ / 11 � ' / ( \ /--r � �, 1 �\ l I l� U / ,/ ^t'' I r � ,-__� \•� \, i r` n � • ` \ � \'o r I � 1 1 � � ._-_ t ► I ��,• ___s --� -- ` `Sn�_ _._.. ,� / I� I / 1 it LL Q - -� - �r y - -- -------- --- - - - - -- -- - - - - -- - -- s -t - - - -- - __ - -• - - - - -- - - - - -- -- QQ -- - - - - - - - - - - - - - - - - - - - -� ---------- - - - - -- rn - -- - -- _-- - - - - -- - - - - -- -- _ o _ I _ _ _y \1 -1 - , -1 _ -� _ �<- -- -3C )E - - - -- 3C- - - - - - - -= 7RAINAG- - . -� � ---�- \ / r -•- � �. ; \ I I AREA-LIMITS �s -� -/ � - ---� ( -- - - ---2 � - RATIONAL METHOD WORKSHEET EET Project: ViIlllod G Ile r 10 Dane: 5/6/2008 - ---- - - - - -- Designer: AGF O° Watershed ID: No SWM O. �, i - AI RP.ORT \\ �' // I / ` / / ,i ,/ ,�, I r -= - -� - - -- Draina g a Area: 5.34 Acres ,r J / i , J / c- factor: 0.45 (see worksheet) cam' ` ) \ �� \ \ , D '\ \ \ \\ L,' ✓ \ tc: 5.00 mins. (see worksheet) - _ - - -- -'� J , I / i i .,, `1 ijj r I l / r �• � , ' r , / �, I Q(2): 12.49 cfs Q(10): 16.07 cfs // - - ( � - factor Worksheet RATIONAL METHOD WORKSHEET Project: Willow GI RATIONAL METHOD WORKSHEET Project: WMow Glen RATIONAL METHOD WORKSHEET Project: Willow Glen Time of Concentration Worksheet Weighted c Date: 5/6/2008 Date• 5/6/2008 Date: 5/6/2008 Designer: AGF Watershed ID: SWM /Amenity Pond Designer: AGF Watershed ID: Bio- Detention r j i ,� 1 r/ f II / _ - -- / /, , j - Designer: AGF Watershed ID: Biofilter #1 o-, Overland Flow Time Cover Type Area c Source: Seelye Chart as modified in VDOT Drainage Manual (Fig. Paving /Rooftop 0.55 0.90 1.5.1.1 on Page 1 -13E) Developed Open Space 4.79 0.40 Notes: Drainage Area: 17.65 Acres Drainage Area: 2.03 Acres /; / / , , ,/' ,/ , ,f Drainage Area: 0.32 Acres 1) Length of overland flow always <= 200 ft c- factor: 0.67 (see worksheet) c- factor: 0.70 (see worksheet) /' j ,�' // ,' �� ;,., / c- factor: 0.67 (see worksheet) 2) Calculate a separate Tc for each ground cover condition along the flowpath tc: 11.67 mins. (see worksheet) tc: 5.00 mins. (see worksheet) ' x /- j/ ; r �� tc: 5.00 mins. (see worksheet) c- factor = 0.45 0(2): 45.40 cfs Q(2): 7.37 CfS �- ,'� ,' t ,' Q(2): 1.10 cfs 30.00 Enter Length of Strip (ft) Sample "C" values: 0(10): 59.44 cfs Q(10): 9.48 cfs /� rt �,/ // r r f - -'' 0 10 : 1.42 cfs ( ) 33.00 Enter Slope (/o or ft/100ft) 0.22 Dense grass "C" , Ir / 0.30 Enter Rational Method value 0.28 Average grass 0.36 Poorgrass Time of Concentration Worksheet Weighted c- factor Worksheet Time of Concentration Worksheet Weighted c- factor Worksheet I' _- - -- t __-- - - - - -- ---Time Weighted C- factor Worksheet of Concentration Worksheet g 3.86 Result Tc (minutes) 0.48 Bare soil 0.90 Pavement -- Overland Flow Time Cover Type Area c yp � Overland Flow Time Cover Type Area c yp t'-- --_ - - -- -�- _ `� - - - - -�` __________ _ _ __ Overland Flow Time Cover Type Area c Shallow Concentrated Flow Time Source: Seelye Chart as modified in VDOT Drainage Manual (Fig. Undeveloped Land 1.00 0.30 `\ Source: Seelye Chart as modified in VDOT Drainage Manual (Fig. Paving /Rooftop 1.22 0.90 _ _-------------- ---' -- - Source: Seelye Chart as modified in VDOT Drainage Manual (Fig. Paving /Rooftop 0.17 0.90 -_ Source: SCS Velocity Graph as published in Virginia Erosion and 1.5.1.1 on Page 1 -13E) Paving /Rooftop 8.94 0.90 �� 1.5.1.1 on Page 1 -13E) Developed Open Space 0.81 0.40 - _------- ------------ --- --- -- ---- ----- - - - - -- `- 1.5.1.1 on Page 1 -13E) Developed Open Space 0,15 0.40 -- - Sediment Control Handbook, Third Edition (Plate 5 -2 on Page V -12) Notes: Developed Open Space 7.15 0.40 Notes: - -- ------ __ -- � Notes: Notes: 1) Length of overland flow always <= 200 ft Pond 0.55 1.00 1) Length of overland flow always <= 200 ft -- -" - - -- -- - ---"- 1) Length of overland flow always <= 200 ft -- - 1) Not intended for well- defined channels - see channel flow calculation 2 Calculate a separate Tc for each round cover condition along the flowpath p 9 9 p 2 Calculate a separate To for each round cover condition along the flowpath ) P 9 9 p - - - - - -- 0 ° 2) Calculate a separate To for each ground cover condition along the flowpath -_ -_ 2) Calculate a separate Tc for each ground cover condition along the flowpath c- factor = 0.67 c- factor = 0.70 --' � c- factor = 0.67 215.00 Enter Length of Flow (ft) 150.00 Enter Length of Strip (ft) Sample "C" values: 25.00 Enter Length of Strip (ft) Sample "C" values: �� , %' ____ - -- - _ 25.00 Enter Length of Strip (ft) Sample "C" values: - -- 33.00 Enter Slope (% or ft/100ft) 10.00 Enter Slope (% or ft /100ft) 0.22 Dense grass 5.00 Enter Slope (% or ft /100ft) 0.22 Dense grass _ ,' °o- -- -' 25.00 Enter Slope (% or ft /100ft) 0.22 Dense grass 0.30 Enter Rational Method "C" value 0.28 Average grass 0.90 Enter Rational Method "C" value 0.28 Average grass ______ -`'J- _ - - --� - - - - -_ __ -__ '- - - 0.90 Enter Rational Method "C" value 0.28 Average grass 0.38 Result Tc (minutes) IF UNPAVED 0.36 Poor grass 0.36 Poor grass ---------- -- ^�- l_----- - - - --- _ �----- - - -- - -- 0.36 Poorgrass 0.291 Result Tc (minutes) IF PAVED 9.531 Result Tc (minutes) 0.48 Bare soil 1.71 Result Tc (minutes) 0.48 Bare soil _ Result To (minutes) 0.48 Bare soil 0.90 Pavement 0.90 Pavement - _ -" l' _ - - ' 0.90 Pavement � Channel Flow Time _ Source: Kirpich Chart as modified in VDOT Drainage Manual (Fig. 1.5.1.2 on Page 1 -14) Shallow Concentrated Flow Time Shallow Concentrated Flow Time -' Shallow Concentrated Flow Time X Notes: Source: SCS Velocity Graph as published in Virginia Erosion and Source: SCS Velocity Graph as published in Virginia Erosion and ( Source: SCS Velocity Graph as published in Virginia Erosion and 1) For small drainage basins. Sediment Control Handbook, Third Edition (Plate 5 -2 on Page V -12) - -- -' Sediment Control Handbook, Third Edition (Plate 5 -2 on Page V -12) `9 � \ � Sediment Control Handbook, Third Edition (Plate 5 -2 on Page V -12) 2) For concrete channels, use 0.2"Tc Notes: Notes: Notes: 0.00 Enter Length of Flow (ft) 1) Not intended for well- defined channels - see channel flow calculation 1) Not intended for well- defined channels - see channel flow calculation � 1 -_ 1 Not intended for well- defined channels - see channel flow calculation ) 52.00 Enter Height of most remote point along flow path above outlet 2) Calculate a separate Tc for each ground cover condition along the flowpath 2) Calculate a separate To for each ground cover condition along the flowpath _ `- - -� 2) Calculate a separate Tc for each ground cover condition along the flowpath 88.00 Enter Length of Flow (ft) 131.00 Enter Length of Flow (ft) - - 0.00 Enter Length of Flow (ft) 0.00 Result Tc (minutes) 3.501 Enter Slope (% or ft /100ft) 4.00 Enter Slope (% or ft/100ft) ___- - __ �/ J 4.00 Enter Slope (% or ft /100ft) r Pipe flow Time 0.491 Result Tc (minutes) IF UNPAVED 0.68 Result Tc (minutes) IF UNPAVED __ -_ __ ---' 0.00 Result Tc (minutes) IF UNPAVED Assumes 10 ft/s velocity in pipe 0.381 Result Tc (minutes) IF PAVED 0.53 Result Tc (minutes) IF PAVED ___ 0.00 Result Tc (minutes) IF PAVED �- 0.00 Enter Length of Flow in Pipe (ft) Channel Flow Time Channel Flow Time Channel Flow Time 0.00 Result Tc (minutes) Source: Kirpich Chart as modified in VDOT Drainage Manual (Fig. 1.5.1.2 on Page 1 -14) Source: Kirpich Chart as modified in VDOT Drainage Manual (Fig. 1.5.1.2 on Page 1 -14) -+ Source: Kirpich Chart as modified in VDOT Drainage Manual (Fig: 1,5,1,2 Qn Page 1 -14) Notes: Notes: �� ' -- Notes: Rainfall Intensity ( Albenarle County, Virginia) 1) For small drainage basins. 1) For small drainage basins. 1) For small drainage basins. 2) For concrete channels, use 0.2 *Tc 2) For concrete channels, use 0.2" Tc 2) For concrete channels, use 0.2'Tc Return Duration Intens ity 0.00 Enter Length of Flow (ft) ,n, 0.00 Enter Length of Flow (ft) �; 0.00 Enter Length of Flow (ft) Period (mins.) (in /hr) 52.00 Enter Height of most remote point along flow path above outlet 52.00 Enter Height of most remote point along flow path above outlet 52.00 Enter Height of most remote point along flow path above outlet �. 2 5.0 5.2 0.00 Result Tc (minutes) 0.00 Result Tc (minutes) 0.00 Result Tc (minutes) 5 0 5.0 .7 25 5.0 7.5 Pipe Flow Time Pipe Flow Time - ___-- - --- -- Pipe Flow Time 50 5.0 8.0 Assumes 10 ft/s velocity in pipe Assumes 10 ft/s velocity in pipe Assumes 10 ft/s velocity in pipe 100 5.0 8.8 995.00 Enter Length of Flow in Pipe (ft) 500.00 Enter Length of Flow in Pipe (ft) �,- 350.001 Enter Length of Flow in Pipe (ft) Intensities derived from NOAA Atlas -14 Rainfall Precipitation Frequency Data 1.66 Result Tc (minutes) -' 0.83 Result Tc (minutes) / � 0.5$ Result Tc (minutes) Rainfall Intensity (Albemarle County, Virginia) Rainfall Intensity (Albemarle County, Virginia) Rainfall Intensity (Albemarle County, Virginia) - Return Duration Intensity Return Duration Intensity -- - - Return Duration Intensity I Period (mins.) (in /hr) ° Period I (mins.) (in /hr) Period (mins.) (in /hr) 2 11.7 3.9 2 5.0 5.2 2 5.0 5.2 5 11.7 4.5 5 5.0 5.9 5 5.0 5.9 F-- 10 11.7 5.1 10 5.0 6.7 10 5.0 6.7 [� 25 11.7 5.7 25 5.0 7.5 25 5.0 7.5 �,�° 0 50 11.7 6.1 50 5.0 8.0 "° 50 5.0 8.0 0 50' 100' 200' 400' 100 11.7 6.6 100 5,0 8.8 100 5.0 8.8 Intensities derived from NOAA Atlas -14 Rainfall Precipitation Frequency Data intensities derived from NOAA Atlas -14 Rainfall Precipitation Frequency Data cp. fo Intensities derived from NOAA Atlas -14 Rainfall Precipitation Frequency Data Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434 - 531 -5544 alan@alanfranklinpe.com Q Z UJ ry z � o W z 0 o Q Q �- z Z Z O c7 (on J � w a - z ~ Z Z o UJ 0co w w U)NQw a w D 1< O moor' o5n yTH OF 1 Alan G. Franklin Lic. No. 35326 NA 7.J SCALE: ISSUED: REVISIONS: SHEET 11' - 50' 05 -20 -13 OF 12 < </ /Nl `�� l ( f t I I �. < ---- � = - - ' -- - - - - - - - - - ----------------- i - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- nnQ DICKERSON V I k rDICKERSON ROAD (RTE. 606) - - - - - - - - - - -K� - - - - - - - - - - - - - - - - - - - - - - - - - - --------- - - - - -- cc c') — -- - - - - -- — — 0 25' 50' 100, "I — -X---- --X I AIRF10,RT I r1l, 200' 1 Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434-531-5544 alan@alanfranklinpe.com pc� Z a J Q 0 Z 0 LLJO Z (D � J > j LLJ < (n Z) 06 i> Z a Z > Z) 0 0 cr (1) C-) w 0 w Ui cr - 0 06 LL1 3: < m -j Q w J ui 0 N 0 Y"TH OF Alan G. Franklin Lc. No. 35326 LONA1, SCALE: ISSUED: REVISIONS: 111=50' 05-20-13 3,000 PS CONCRET 48" A CONCRETE CRADLE 10 DETAIL 24" 6'x 6' 8'X8' REINFORCED CONCRETE CONCRETE BASE BOX I C VDOT STD. El ST -1 STEPS 24" RCP I 72 96" I 1.0'(L) x 0.5'(H) a ORIFICES, TYP I 4 I L� --- - - - - -- - -J 96" FOUR (4) 11 "(L) x 6 "(H) - ORIFICES W/ TRASH RACKS INVERT ELEV. 528.65 FOUR (4) 12 "'(L) x 6 "(H) - ORIFICES W/ TRASH RACKS INVERT ELEV. 527.00 AQUATIC BENCH \ \ o i , \ i \ \\ \ \ \��\ , rKC�tyl :W�r'%TC rr�iK ju \ ZONE INUDATION RANGES: WETLAND INDICATOR STATUS: \ \ I \ U) \ I \ \ THRO>� IN BI Kk( D \ @ 529. �\ � \ \' ZONE 1 =DEEP WATER ZONE 18" - 6.0' BELOW NWE OBL \ \ I \ i \ \ i I \ � \ \ \ I O ZONE 2 = SHALLOW WATER AREA 0 -18" BELOW NWE OBL ZONE 3 = SHORELINE FRINGE 0'- 1 ABOVE NWE FACW, FAC \ N I\ ZONE 4 = RIPARIAN FRINGE AREA ABOVE WATER QUALITY AREA FAC, FACU \ ZONE 5 = FLOODPLAIN TERRACE BETWEEN 2 -10 YR. STORM FACU N ° i \ to I \ CS \ \ \ \ \ \ \ \ \ \ ZONE 6 = UPLAND AREA NO INUNDATION TYPICAL FACU \ \ \\ \\ \ \ 1 i \ I \\ t RIP RAIQ, TY ('B_'� BMP PLANTING ZONES v v v , �; v PC \ v \ v \ SECTION L -019 49) N.T.S. \ \ \I Cn\ \ cv � LOT 44 PLANT LIST FOR SWM AMENITY POND (REQUIRED BY THE COUNTY). IV \\ \ ♦� , `� \ \, I it \ II � � ;\ + � IV \ � � \ � \\ � \ \ \� \ ♦ � � �' -. I \/ \ \ \I \ \ \ \ ♦ I \\ \ \ \� \ LOT 43 II �� J \i \ \ \ Pv FL PLASTIC SOLUTIONS, ORE UAL, _ ,� �. �'\ _ � / i L � ROCK I�-5 -3 / -, _ -)- \ \ \ \ \ Q \ \ \\L LEVEL SPREADER TRASH RACK WITH 60C1A56€ �' ^ \/ - - �� ' Nsfi kirk# / cv I \ \ \ DEL v. 518.00 ACCESS HATCH �\ i 'U �� i ((I 100-YR STORM PEAK WSE 529.96 s; Label!ScientificName ICommonName ;Quantity Root IComments 1 AA iAcornus americanus (Sweet Rag 1 104 12" plugs IAII plants from one source; (OBL) -Rant Depth 6 " -12" below WE; 2' O.C. AP jAlisma plantago- aquatica jAmerican Water Rantain 1 39 12" plugs IAII plants from one source; (OBL) -Rant Depth 6 " -12" below WE; 2' O.C. CS Carex stricta Tussock Sedge 1 196 2" plugs IAII plants from one source; (OBL) -Rant Depth 6 " -12" below WE; 18" O.C. CV Care vulpinoldes iFox Sedge 1 70 2" plugg jAll plants fFdm5ne s'o'urce; (OBL)- Plaint Depth 6 " -12" below WE; 18 "O.C. IV Iris versicolor'Blue Rag' 1Blue Rag Iris 1 109 2" plugs JAII plants from one source; (OBL) -Rant Depth 6 " -12" below WE; 20.C. NL Nuphar lutea Spadderduck I 43 2" plugs IAII plants from one source; (OBL) -Rant Depth 6 " -12" below WE 2'0.C. 1 PC IPontederia cordata I 78 12" plugs IAII plants from one source; (OBL) -Rant Depth 6 " -12" below WE�- 2'0.C. 1 PV I Peltandra virginica (Arrow Arum 80 12" plugs AII plants from one source; (OBL) -Rant Depth 6" -18" below WE; 2'0.G. Sc Saururus cernuus Lizard's Tail 78 12" plugs IAII plants from one source; (OBL) Rant Depth 6 " -12" below WE 2'0.C. SL Sagittaria latifolia Duck Potato I 123 12" plugs IAII plants from one source; (OBL) -Rant Depth 12 " -18" below WE; 2'0.C. ST Scirpus tabernaemontani Soft -stem Bulrush 1 98 2" plugs ;AII plants from one source; (OBL) -Rant Depth 6 " -12" below WE; Z O.C. a PHONE SO .V -YR STORM PEAK WSE 528.74 NORMAL WSE 527.00 8'x8' CONCRETE BASE a 24" a SECTION C SWM /AMENITY POND OUTLET RISER 10% DETAIL ID -000 N.T.S. ?520 '510 0' 10' -y S FETY AQUATIC BENCH BE.NCH 3' MAX HEIGff - MODULAR 0 TIMBER RETAINING #ALL TW = 534.0 BW = 531.0 TIMBER "NA TICAL" BULKH (SEE DETAIL 3 BY OTHERS) TW = 530.5 BW = 526.0 VDOt STD. EC-1 > . \ ss CLASS I RIVERSTONE I / ea _RIP RAP RIVERSTO \ _ / FOREBA /' RI RAP IR / / / �' 26 / / I �, �/ / % • \ / \' / \ / EL V.5 v'1 \ -COT LOT J �\�"� - S C EN o /#�2/ / / 1 '/ �i i /< \ \ Ps�N dVV 7 \ - 41W 571 0 A G rltm � 40 p SWM /AMENITY POND PLAN 10 DETAIL SCALE: 1"=20' SA ETY RAIL (SEE ETAILTN StT N) - _ EXISTING GRADE TYFI. - - - PROPOSED GRADE ELEV. 526.50 10 -YR STORM ME = 529:33 - JF ONAUi161 SWM /AMENITY POND SECTION SCALE: 1 " =10' H; 1 " =10' V /_ N. .. P 1+50. -1 1' 10'� �QU TIC SA�TY E BANKMENT BE CH BE CH TYPICAL EL. 531. ELEV. CUTOFFTRENCH ELE 526.00 . -J TIMBER "NAUTICAL" U� 41- BULKH STORMWATE EMENT PLAN JTING DETAIL FOR SD -A POND CONTROL STRL CTURE ELEV. (SEE DETAILS BY OTHERS) EQUAL., TRASH RACK WITH LOCKABLE MAN ACCE S AND VDOT S -1 STEPS RIM E _EV. = 529.65 INV. OJT = 519.00 ORM WSE_5 -9.96 (SEE MATERIAL AND PLACEMENTS ALL CONFORM TO STRUCTURAL. BACKFILL SPE -E-TAIL) MI IMUM STD. 3.0 VNOR MA WSE = 527.00 THE VIRGINIA 1+50. -1 1' 10'� �QU TIC SA�TY E BANKMENT BE CH BE CH TYPICAL EL. 531. ELEV. CUTOFFTRENCH ELE 526.00 . -J TIMBER "NAUTICAL" U� 41- BULKH yr t•r r«.r AD 1.VD %o ELEV. (SEE DETAILS BY OTHERS) 526.5 TW = 530.5 NOTES: 1. ALL EMBANKMENT MATERIAL AND PLACEMENTS ALL CONFORM TO STRUCTURAL. BACKFILL SPE IFICATIONS IN MI IMUM STD. 3.0 , EARTHEN EMPANKMENTS" 0 THE VIRGINIA STORMWATER MANAGEMENT HANDBOOK. 2. CONTRACTOR SHALL CONSULT WITH GEOTECHNIC L ENGINEER F R ADDITIONAL ESIGN REQUIREMENTS. 3. GE TECHNICAL EN INEER SHALL�E ON -SITE DUR NG CONSTRUC ION OF EM BAN MENT AND SP LLWAY. 4. 24 RCP TO HAVE WATERTIGHT JOINTS. 0,� REVISIO S TO AMENITY POND TO REDUCE ROCK EXCAV TION INCLUDE 1. RAI E THE EMBANKMENT CREST F OM 528.00 TO 532.00 2. RAISE THE PERMAN ENT POOL ELEV. FROM 523.00 TO 527.00 3. ADJ JST RISER AND AQUATIC AND SAFETY BENCH ELEVATIONS ACCORDINGLY 4. RERUCED THE DEPTH OF THE PONQ I I (5 RADED FILTEF DIAPHRAGM )R SEEPAGE CONTROL ESIGN AND CC NSTRUCTION To BE SUPERV Y A GEOTECHN ICAL ENGINEER SD -AP1 VDOT STD. F S INV. OUT 51 .00 LE%SPREADER ELEV. 527.00 2� \ -PERENIA STREA (D� NOT ISTURB 3.+ Fj s� Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434 - 531 -5544 alan@alanfranklinpe.com z Z w J O Q Z 0 � a Z � z O ry Uj o J 06 J z W Z o Z) � 0 � LL� � W � 2 0 < 06 2 LU CN Q `� w w z Z� � 0 N O O�-VTH OF PI�� N;� Alan G. Franklin ot Lc. No. 35326 W �ssl o ��G~ NAL ISSUED: REVISIONS: SHEET 05-20-131 OF 12 Alan Franklin PE, LLC Civil and Site Plan Engineering Label IScientificName ;CommonName I Quantity iCaliper Height Root Comments CS I Cornus sericea Red -osier Dogw ood 17 { 3 G Dense form; healthy color; uniform branching; 5' O.C. CY Calycanthus floridus 'Athens' jAthens Common Sweatshrub 11 3G Dense form; healthy color; uniform branching; 4'0.C. IG Ilex glabra'Nigra' Nigra Inkberry 17 3G Dense form; healthy color; uniform branching; 4'0.C. LS Liquidambar styraciflua'Rotundiloba' Rotundiloba Sw eet Gum 1 1 -1.5" B &B Straight trunk; branching begins at 3'; balanced head MD Metasequoia glyptostroboides Daw n Redw ood 1 4' B &B Dense form; healthy color; uniform branching w Nbgnolia virginica'Australis' Australis Sweetbay i gnolia 4 4' B &B Multi- trunk (3 -5 trunks); dense, uniform branching S1 Seed Seed 4200 seed (s.f.) Seed Nix #1: See Notes for plant species and percentages SB I Salix babylonica Babylon Weeping Willow 1 1 1 -1.5" I B &B /cont i Multi-trunk (3 -5 trunks); w ell pruned (no straight w hip trunks) TC Tsuga canadensis !Canadian Hemlock 3 1 4: B &B Dense form; healthy color; uniform branching to the ground IVR I Viburnumx rhytidophylloides 'Alleghany' JAlleghany Leatherleaf Viburnum 22 1 1 1 3G IDenseform; healthy color; uniform branching; 5' O.C. 427 Cranberry Lane Crozet, VA 22932 434 - 531 -5544 alan @alanfranklinpe.com z zw 0 V vJ ry J z Q o � Q W �— z � w O � . LLJ J > z Z z � C) a'S z � O Z LLJ Ir 00 0 0 � (�I m w Q o W ' w 0 o � m 0 r) o�&NLTH OF Alan G. Franklin Lc. No. 35326 W �sI ANA L AS SHOWN ISSUED: 05 -20 -13 SWE REVISIONS: SHEET OF 12 A BIO- FILTER #1 BMP PLAN 36 DETAIL 550 540 530 15" RCP CULVERT 0 +00 BIO- FILTER #1 SECTION SCALE: 1 " =10' H; 1" =10' V REINFORCED CONCRETE PLASTIC SOLUTIONS OR EQUIVALENT TRASH RACK W/ ACCESS HATCH RISER CREST — ELEVATION 543.00 10- FILTER BOTTOM 15" RCP CULVERT INV. OUT 538.00 6" PVC UNDERDRAIN • e • a i i 0 +50 PLANT LIST FOR BIO - FILTER #1 (REQUIRED BY THE COUNTY): 1 +00 550 530 SCALE: 1" =10' Label [ScientificName { CommonName Quantity SD -BF1 -2 Root Comments AA Amelanchier arborea'Autumn Brilliance' Autumn Brillance Serviceberry I 1 11 -1.5" B &B .Multi -trunk (3 -5 trunks); dense, uniform branching CY Calycanthus floridus 'Athens' Athens Common Sweatshrub 5 1 3 G IDense form; healthy color; uniform branching; 3' O.C. IV Itea virginica'Henry's Garnet' Henry's Garent Virginia Sweets pire 1 7 1 3 G IDense form; healthy color; uniform branching; 3'0.C. i [S1 Seed Seed 1000 ER W/ PLASTI SOLUTIONS, Of EQUAL, TRASH RACK WITH TECTION FROM EDGE OF PAV 48" RC RI TTOM BI ON BASKET 3 G Dense form; healthy color; uniform branching; 4' O.C. IV flea virginica 'Henry's Garnet' OF THE LOCKABL MAN ACCESS AND '= VDOT ST -1 TEPS BAS MV LE L SPREADER 2 I 4' B &B 2. THE DISTANCE RIM ELEV. 543.00 ILL NOT EXCEED 50 FEET, ELE 1546.00 Seed Mx #1: See Notes for plant species and percentages GRADE INV. OUT 538.00 4' 61 /;::EXISTING PROPOSED GRADE CL NOUT, ELEV. 50.00 GABION BASKET 10 -YR S _ _ TYP _ YR SE _ ELEV. LEVEL SPREADER 543 ER MIX 0 - _ - - 43.2 � — 44.00 ELEV. 538.00 — 2'-6" BIOF 2' -6" BIOFIL : ^.*:v.'`"p.r w;t: „y vW ?•.-'+ c%.nj°�. 4'�T.ni'wJ+.x.L"+.�,.,.w' :, ,.`oi ?_�5��T -r (PER STATE TDS ) - - ��.., - s..f :sue • - wis:r ;• - - - - -- — o (DO NOT ISTU i (PER STATES DS) qZ SD -6F1 -1 6 II PEAGRAV L LAYER — J � — �- — 1' UNDERD AIN GRAVEL 6" PERFORATED SDR 35 P ELEV. VDO STD. FES 6” PEAGRAVE IN GEOTECH FABRIC @ 1.% SLOPE (MIN) TO DI , INV. OUT 537.50 PERENIAL TREAM AASHTO M43, 1/2"-1" 6" NON- PERFORA ED SDR VEL SPILLWAY 5 5.00 (DO NOT C ISTURB!) IN GEOTECH ABRIC 3E PVC @ f7b PE (MIN) CHANNEL \-C.XISTING NOTES: I 1/2 " -1 ") - \_�ROPOSED 1. THE NEED OF THE FOR ADDITIO PIORETENTIONAREA Al_ PERMANENT MUST BE EVALUATED EROSION PROTECTION ON FROM AN INDIVIDUAL PROJECT EDGE OF PAVE BASIS. ENT TO THE BOTTOM 2. THE DIS ANCE BETWEE CLEAN -OUTS ILL NOT EXCE D 50 FEET. 0 +00 BIO- FILTER #1 SECTION SCALE: 1 " =10' H; 1" =10' V REINFORCED CONCRETE PLASTIC SOLUTIONS OR EQUIVALENT TRASH RACK W/ ACCESS HATCH RISER CREST — ELEVATION 543.00 10- FILTER BOTTOM 15" RCP CULVERT INV. OUT 538.00 6" PVC UNDERDRAIN • e • a i i 0 +50 PLANT LIST FOR BIO - FILTER #1 (REQUIRED BY THE COUNTY): 1 +00 550 530 SCALE: 1" =10' Label [ScientificName { CommonName Quantity Caliper [ Height Root Comments AA Amelanchier arborea'Autumn Brilliance' Autumn Brillance Serviceberry I 1 11 -1.5" B &B .Multi -trunk (3 -5 trunks); dense, uniform branching CY Calycanthus floridus 'Athens' Athens Common Sweatshrub 5 1 3 G IDense form; healthy color; uniform branching; 3' O.C. IV Itea virginica'Henry's Garnet' Henry's Garent Virginia Sweets pire 1 7 1 3 G IDense form; healthy color; uniform branching; 3'0.C. i [S1 Seed Seed 1000 i seed (s.f.) ISeed Mx #1: See Notes for plant species and percentages ONE (1) 8" PIA ORIFICE AT�526.00 W/ TRASH TRACK 100 YR STORM PEAK ELEV. 543.12 10 YR STORM PEAK ELEV. 543.09 2 YR STORM PEAK ELEV. 543.07 _ a : BIO- FILTER ' BOTTOM °C• e INV. IN 538.10 9 12" O C• CONCRETE BASE 60" SECTION A BIO- FILTER #1 RISER STUCT. BF1 -2 20 DETAIL ID -000 N.T.S. i I f! SCALE: 1 " =10' 550 540 NOTES: ScientificName CommonName Quantity Caliper Height Root Comments AA Arrolanchier arborea'Autumn Brilliance' Autumn Brillance Serviceberry 1 11.5-2" 1. THE NE D FOR ADDITIO AL PERMANENT EROSION PR TECTION FROM EDGE OF PAV ENT TO THE B TTOM BI ON BASKET 3 G Dense form; healthy color; uniform branching; 4' O.C. IV flea virginica 'Henry's Garnet' OF THE 1ORETENTION AREA MUST BE VALUATED ON AN INDIVIDUAL PROJECT BAS MV LE L SPREADER 2 I 4' B &B 2. THE DISTANCE BETWEEN CLEAN -OUTS ILL NOT EXCEED 50 FEET, ELE 1546.00 Seed Mx #1: See Notes for plant species and percentages 4' BANK. ELEV. 50.00 10 -YR WSE _ 100 -YR ELEV. _ 549.13 _ - 549. 549.00 — 2'-6" BIOF R MIX w;t: „y — 1 PERENIAI. STREAM - - ��.., - s..f :sue • - wis:r ;• - 6 (DO NOT ISTU i (PER STATES DS) qZ — J ELEV. 6” PEAGRAVE LAYER 1- UNDERDWIN GRAVEL GR VEL SPILLWAY 5 5.00 "7 IN GEOTECH ABRIC /DRAIN CHANNEL \-C.XISTING (AASHTO M41-:, 1/2 " -1 ") NO UND \_�ROPOSED GRADE GRADE 0 +00 BIO - FILTER #2 SECTI SCALE: 1"=10'H; 1 " =10' V PLANT LIST FOR 1310-F TER #2 (REQUIRED BY THE OUNTY): 0 +50 Label ScientificName CommonName Quantity Caliper Height Root Comments AA Arrolanchier arborea'Autumn Brilliance' Autumn Brillance Serviceberry 1 11.5-2" B &B I Straight trunk; branching begins at 3; balanced head IG Ilex glabra'Nigra' Nigra Inkberry I 13 3 G Dense form; healthy color; uniform branching; 4' O.C. IV flea virginica 'Henry's Garnet' Henry's Garent Virginia Sw eetspire 5 3 G Dense form; healthy color; uniform branching; 3' O.C. [ MV Magnolia virginica'Australis' Australis Sw eetbay Magnolia 2 I 4' B &B Matti -trunk (3 -5 trunks); dense, uniform branching € S1 Seed Seed 350 seed (s.f.) Seed Mx #1: See Notes for plant species and percentages ALBEMARLE COUNTY GENERAL CONSTRUCTION NOTES FOR STORMWATER MANAGEMENT PLANS 1. ALL DAMS AND CONSTRUCTED FILL TO BE WITHIN 95% OF MAXIMUM DRY DENSITY AND 2% OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL TO BE APPROVED BY A GEOTECHNICAL ENGINEER. A GEOTECHINICAL ENGINEER IS TO BE PRESENT DURING CONSTRUCTION OF DAMNS. PIPE AND RISER JOINTS ARE TO BE WATERTIGHT WITHIN STORMWATER MANAGEMENT FACILITIES. FOR TEMPORARY SEDIMENT TRAPS OR BASINS WHICH ARE TO BE CONVERTED TO PERMANENT STORMWATER MANAGEMENT FACILITIES; CONVERSION IS NOT TO TAKE PLACE UNTIL THE SITE IS STABILIZED, AND PERMISSION HAS BEEN OBTAINED FROM THE COUNTY EROSION CONTROL INSPECTOR. 550 N � Alan Franklin PE, LLC Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434 - 531 -5544 alan @alanfranklinpe.com z w � J J Ix Z ---� O z Z O W w 0 � r) J �z� w z�o��0 w � O �� W U-1 � � NQ ¢w o Z � m 0 N O a 3 r' o�p,I,TH OF GJ�� r .moo ��. Alan G. Franklin ot Lic. No. 35326 ,O W. NAL I ISSUED: I REVISIONS: SHEET AS SHOWN 05 -20 -13 SWE OF 12 M t G ('A' SWM /FOREBAY #1 LANDSCAPE PLAN 37 PLAN SCALE: P =10' 1 PLANT LIST FOR SWM /FOREBAY #1 (REQUIRED BY THE COUNTY): i Label IScientificName CommonName I Quantity Caliperl Height Root 1comments AA Amelanchier arborea'Autumn Brilliance' Autumn Brillance Serviceberry 1 4 1 -1.5" 1 B &B Multi -trunk (3 -5 trunks); dense, uniform branching CS ICornus sericea Red -osier Dogwood 1 16 39 3 G Dense form; healthy color; uniform branching; 5'0.C. CY Calycanthus floridus'Athens' Athens Common Soieatshrub 26 B &B iMulti- trunk ( 3 -5 trunks); dense, unif orm branching 3 G Dense form; healthy cola; uniform branching; 4' O.C. IG Ilex labra'Ni ra' g g Ni ra Inkberr g y 17 S1 Seed I Seed 3 G Dense form; healthy color, uniform branching; 4'0.C. LT Liriodendron tulipifera (Tulip Poplar 1 1.5 -2" 1 B &B Straight trunk; branching begins at 3; balanced head MD Metasequoia glyptostroboides Dawn Redwood 1 4' B &B Dense form; healthy color; uniform branching SB I Salix babylonica Babylon Weeping Willow 2 1 -1.5" B &B/cont I Multi -trunk (3 -5 trunks); well pruned (no straight w hip trunks) 71 VC I Viburnumx carlcephalum Fragrant Viburnum 31 -1 1 3_G__ Dense form; healthy color; uniform branching; 5°0.C. ('B � SWM /FOREBAY #2 LANDSCAPE PLAN 37 PLAN PLANT LIST FOR SWM /FOREBAY #2 (REQUIRED BY THE COUNTY): Label IScientificName lCommonName I Quantity! Caliper Height I Root `Comments AR Aronia arbutifolia'Brilliantissima' Brilliant Red Chokeberry 8 I 3-G I Dense form; healthy color; uniform branching; 5' O.C. CS Cornus sericea I Red -osier Dogw ood 9 3 G !Dense form; healthy color; uniform branching; S O.C. IG j ilex glabra'Nigra' Nigra Inkberry 39 3 G Dense form; healthy color; uniform branching; 4'0.C. :ME Magnolia virginica'Australis' IAustralisSweetbayMagnolia F 1 1 4' B &B iMulti- trunk ( 3 -5 trunks); dense, unif orm branching PO I Ratanus occidentalis [Sycamore 1 1 -1.5" I B &B Straight trunk; branching begins at 3'; balanced head S1 Seed I Seed I 650 [ seed (s .f.) Seed Mix #1: See Notes for plant species and percentages i SB Salix babylonica lBabylon Weeping Willow 2 I1 -1.5" 1 1 B &B/cont Multi -trunk (3 -5 trunks); well pruned (no straight whip trunks) �.r SCALE: V =10' ,Ian Franklin PE, Lb Civil and Site Plan Engineering 427 Cranberry Lane Crozet, VA 22932 434 - 531 -5544 alan @alanfranklinpe.com z Zw J d J H Z U H O Z W D W U) Z Coll 0 � Ow � CN ¢W w z0 0 N O d I..L (D Z Q a U Z U) 0 r)noo >ZQ Q z n N o it Uj LLJ J m j Q �Ml W W 0 LL �, AA111 op, C> f Alan G. Franklin Lc. No. 35326 W ,O W, NA L ISSUED: 05 -20 -13 REVISIONS: SHEET OF 12