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HomeMy WebLinkAboutSDP201200056 Plan - Approved 2013-03-15f MINOR SITE PLAN AMENDMENT TO 5DF69-06G FOR Yves Delorme,, Inc. TMP 07700-00-00-040C TMP 07700-00-00-040M0 5COTT5VILLE DISTRICT, ALBEMARLE COUNTY, VIRGINIA GENERAL CONSTRUCTION NOTES 1. PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, A PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (VDOT). THIS PLAN AS DRAWN MAY NOT ACCURATELY REFLECT THE REQUIREMENTS OF THE PERMIT. WHERE ANY DISCREPANCIES OCCUR THE REQUIREMENTS OF THE PERMIT SHALL GOVERN. 2. ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF VDOT UNLESS OTHERWISE NOTED. 3. EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION CONTROL PLAN AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER CONSTRUCTION. 4. ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED. 5. THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL: VERTICAL). WHERE REASONABLY OBTAINABLE, LESSER SLOPES OF 3:1 OR BETTER ARE TO BE ACHIEVED. 6. PAVED, RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL. 7. ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES. 8. UNLESS OTHERWISE NOTED ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE - CLASS III. MUST COMPLY WITH OSHA STANDARDS 9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATIONRDS FOR THE CONTRUCTION INDUSTRY (29 CFR PART 1926). HA CONFORM TO' LOCAL MUNICIPAL STANDAR ATE 10. WORK WITHIN THE LOCAL RIGHTS -OF -WAYS LL DS. WORK WITHIN ST RIGHTS-OF-WAY SHALL CONFORM TO THE LATEST EDITION OF THE VIRGINIA DEPARTMENT OF TRANSPORTATION STANDARDS AND SPECIFICATIONS FOR HIGHWAYS AND BRIDGES. 11. USE SELECT MATERIAL UNDER BUILDINGS AND'STRUCTURES• USE FILL AND BACKFILL MATERIAL UNDER PARKING AREAS ROADS SIDEWALKS, AND OTHER CONCRETE AND PAVED SURFACES; USE COMMON FILL MATERIAL FOR GENERAL SITE GRADING. PLACE MATERIAL IN 6" LIFTS. 12. COMPACT LAYERS OF FILL TO 95 PERCENT BY MODIFIED PROCTOR METHOD PER ASTM D 1557 BENEATH AND WITHIN 15 FEET OF I D 698 BENEATH AND WITHIN DETENTION PO EMBANKMENTS, BUILDINGS AND BY STANDARD PROCTOR METHOD PER ASTM T P.I.. E , , PAVEMENTS, WALKS, AND ROAD SHOULDERS, INCLUDING AREAS THAT MAY BE USED FOR FUTURE CONSTRUCTION. IN OTHER UNPAVED OD PER ASTM D 698. IF THE DENSITY OF711-E-_ ADJACENT SOIL IS MORE AREAS COMPACT 90 PERCENT BY STANDARD PROCTOR METH THAN THE DENSITY SPECIFIED, THEN COMPACT TO A DENSITY NOT LESS THAN THE DENSITY OF THE ADJAUENT SOIL. 13. AREAS ON WHICH FILL IS TO BE PLACED SHALL BE CLEARED, GRUBBED, AND STRIPPED OF TOPSOIL. SOIL MATERIALS SHALL BE FREE OF DEBRIS, ROOTS, WOOD, SCRAP MATERIAL, VEGETATION, REFUSE, SOFT UNSOUND PARTICLES, AND FROZEN DELETERIOUS OR OBJECTIONAL MATERIALS. THE MAXIMUM PARTICLE DIAMETER SHALL BE ONE-HALF THE LIFT THICKNESS. COMMON FILL MATERIAL SHALL BE UNCLASSIFIED SOIL MATERIAL WITH THE CHARACTERISTICS REQUIRED TO COMPACT TO THE SOIL DENSITY SPECIFIED FOR THE INTENDED LOCATION. BACKFILL AND FILL MATERIAL: ASTM D 2487. CLASSIFICATION GW, GP, GM, GC, SW, SP, SM, SC WITH A PLASTICITY INDEX OF 12 /AND MAXIMUM OF 25 MAXIMUM ASTM D 4318 PERCENT BY MAXIMUM ASTM D 4318 LIQUID LIMIT OF 35, MA , WEIGHT PASSING ASTM D 1140, NO. 200 SIEVE. SELECT MATERIAL: ASTM D 2487, CLASSIFICATION GW, GP, SW, SP WITH A MAXIMUM OF 10 PERCENT BY WEIGHT PASSING ASTM D 1140, NO. 200 SIEVE. 14. ALL FINISHED GRADING, SEEDING AND SODDING SHALL BE DONE IN SUCH A MANNER TO PRECLUDE THE PONDING OF THE WATER ON THE SITE, PARTICULARLY ADJACENT TO THE BUILDINGS OR STORM INLETS. 15. CUT AND PATCH WORK IN EXISITING PUBLIC STREETS MUST BE PERFORMED IN ACCORDANCE WITH VDOT AND ALBEMARLE COUNTY STANDARDS AND SPECIFICATIONS. 16. ALL EXISTING CURB AND GUTTER ALONG THE FRONTAGE OF THIS SITE IN POOR CONDITION CR DAMAGED DURING CONSTRUCTION SHALL BE REMOVED AND REPLACED TO THE STANDARDS AND SPECIFICATIONS OF ALBEMARLE COUNTY. 17. IN THE EVENT THAT SUSPECTED CONTAMINATED SOIL, GROUNDWATER, AND OTHER MEDIA ARE ENCOUNTERED DURING EXCAVATION AND CONSTRUCTION ACTIVITIES BASED ON VISUAL, OLFACTORY, OR OTHER EVIDENCE, THE CONTRACTOR SHALL STOP WORK IN THE VICINITY OF THE SUSPECT MATERIAL TO AVOID FURTHER SPREADING OF THE MATERIAL, AND SHALL NOTIFY THE OWNER IMMEDIATELY SO THAT THE APPROPRIATE TESTING AND SUBSEQUENT ACTION CAN BE TAKEN. SI;GNATURE BLOCK NER CURRENT DEVELOPMENT ENGINEER AIA ALBEMARLE COUNTY SERVICE AUTHORITY I aqaellew,I A ARCHITECTURAL REVIEW BOARD I) A BUILDING OFF /V A VIRGINIA DEPARTMENT OF TRANSPORATION pm"d _? - /..s -,3 SHEET INDEX 5HEET C I - COVER SHEET SHEET C2 - EXISTING TOPOGRAPHY � DEMOLITION 5 H EET C3 - SITE, UTILITY, � LANDSCAPE PLAN SHEET C4 - SITE � UTILITY DETAILS/PROFILES SHEET C5 - EROSION � SEDIMENT CONTROL NARRATIVE SHEET CG - EROSION * SEDIMENT CONTROL PLAN SHEET C7 - ER0510N �- 5EDIMENT CONTROL DETAILS VICINITY MAP SCALE: 1"-1,000' ,,. °�m7 .� OXXXXV.. .� •, SYS PRft ✓'�V$ F• ,fit: Hill Ct�rl�lo 12.4% .yy. 520 SF 0.3% Pavement 22,327 SF 12.3% Impervious area 45,187 SF 25.0% Open space 135.587 SF r ' tax •• . ,.,x i o E E ;= � Cercis canadensis Eastern Redbud 6-7' Height 2 124 P, k ­ SHRUBS f 40 0: Hydrangea arborescens Wild Hydrangea 1-1.5' Height 1 16 16 TOTAL QUANTITY: 9 TOTAL SF: 2,472 I� 0 ill 1` 0 0 45 idt%s U U W w IS: N M t2 � H O O O � N .1 N ?a fjL+1p. c �ryA(p�y, tslilflt`v��s i SITE ones moCN 4 Irl ee[ .: T6 ., ttttll ,.; M66 , • . X gly... P�rfs � X. t f i :1�Iorsfia�llca `' IMAGE PROVIDED BY GOOGLE MAPS GENERAL WATER & SEWER CONDITIONS 1. WORK SHALL BE SUBJECT TO INSPECTION BY ALBEMARLE COUNTY SERVICE AUTHORITY INSPECTORS. THE CONTRACTOR WILL BE RESPONSIBLE FOR NOTIFYING THE PROPER SERVICE AUTHORITY OFFICIALS AT THE START OF THE WORK. 2. THE LOCATION OF EXISTING UTILITIES ACROSS THE LINE OF THE PROIPOSED WORK ARE NOT NECESSARILY SHOWN ON THE PLANS AND WHERE SHOWN, ARE ONLY APPROXIMATELY CORRECT. THE CONTRACTOR SHALL ON HIS OWN INITIATIVE LOCATE ALL UNDERGROUND LINES AND STRUCTURES AS NECESSARY. 3. ALL MATERIALS AND CONSTRUCTION SHALL COMPLY WITH THE CURRENT EDITION OF THE GENERAL WATER AND SEWER CONSTRUCTION SPECIFICATIONS AS ADOPTED BY THE ALBEMARLE COUNTY SERVICE AUTHORITY. 4. DATUM FOR ALL ELEVATIONS SHOWN IN NATIONAL GEODETIC SURVEY.. 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING "MISS UTILITY" (1-800-552-7001). 6. ALL WATER AND SEWER PIPES SHALL HAVE A MINIMUM OF 3 FEET OF COVER MEASURED FROM THE TOP OF PIPE, OVER THE CENTERLINE OF PIPE. THIS INCLUDES ALL FIRE HYDRANT LINES, SERVICE LATERALS AND WATER LINES, ETC. 7. ALL WATER AND SEWER APPURTENANCES ARE TO BE LOCATED OUTSIDE OF ROADSIDE DITCHES. 8. VALVES ON DEADEND LINES SHALL BE RODDED TO PROVIDE ADEQUATE RESTRAINT FOR THE VALVE DURING A FUTURE EXTENSION OF THE LINE. 9, WATER METER SIZES SHALL BE DETERMINED BY THE ACSA BASED ON FIXTURE COUNT PRIOR TO ISSUANCE OF A BUILDING PERMIT. OWNER / DEVELOPER Yves Delorme, Inc. 1725 Broadway St. Charlottesville, VA 22902 ZONING LI - Light Industry LEGAL REFERENCE TMP 07700-00-00-04OC1 - DB 3088 PG 272 (2.09 Acs) TMP 07700-00-00-040MO - DB 2229 PG 332 (2.06 Ac's) BENCHMARK Bench mark is an existing nail in the pavement across from the loading area. Elevation=402.43. Tie to Ci benchmark nail in ower role at the intersection E City p p of Carlton Ave. & Nassau St. Elev:400.48 SOURCE OF BOUNDARY & T P O Boundary survey compiled from plats of record. A current boundary survey was not performed. Parcel 40C1: DB 3088 PG 272 Parcel 40M: DB 907 PG 682 Topographic survey & as -built information provided in May 2012 by. Commonwealth Land Surveying, LLC. 319 West Rio Road Charlottesville, VA 22901 434 973-0513 A title report was not provided. All easements and encumbrances may not be shown on this plan. BUILDING HEIGHT Maximum: 65' By Right SETBACKS Front Building (Broadway St.): 50' Front Parking (Broadway St.): 10' EXISTING USE Office/ Warehouse PROPOSED USE Office/Warehouse With New Access Road To Future Development Current FAR= 0.25, max allowed FAR=0.70 Max Employees: 31 LAND USE SCHEDULE EXISTING Area % Building 22,340 SF 12.4% Sidewalk 520 SF 0.3% Pavement 16,311 SF 9.0% Impervious area 39,171 SF 21.7% Open space 141,603 SF 78,3% Total= 180,774 SF (4.15 ac.) PROPOSED Area % Building 22,340 SF 12.4% Sidewalk 520 SF 0.3% Pavement 22,327 SF 12.3% Impervious area 45,187 SF 25.0% Open space 135.587 SF 75.0% Total= 180,774 SF (4.15 ac.) SIGNS All signs shall conform with the MUTCD Guidelines. WATERSHED This site is located within the Moores Creek Watershed. This site is not located within a water supply protection area. CRITICAL SLOPES There are critical slopes on this site. See sheet C2. LIGHTING Additional outdoor lighting is not proposed with this site plan amendment. :i00 0 W o 0 � I Z 0 , w o W W z Itz v W ! W d °� o =_ w� z F N O N C1 N W 1) Q in � W J (n J z W w �o W J 1 Q w °_ N U SITE PLAN AMENDMENT NARRATIVE o The purpose of this site plan amendment is to amend SDP89-086 to provide: U J 1TjN_M-S IMP Y 1. A 20' access road to Tax Map 77 Parcel 40C1. Lic. o.15183 2. Relocate existing 8" sanitary line under proposed access road with a new drop /,43 �JZ 1 connection to the existing manhole. "F''�W�' 3. Relocate existing water service line under proposed access road. Cs�` 4. Install a new underground storm water detention system treated by a new SSIONAL �� filterra, outfalling to an existing ditch along Broadway St. 5. Install a new stacking block retaining wall along the proposed access road with VDOT standard guardrail at the top of the wall. 6. Install new landscaping in accordance with Albemarle County's landscaping requirements. FLOOD ZONE According to the FEMA Flood Insurance Rate Map, effective date February 4, 2005 (Community Panel 51003CO289D), this property does not lie in a Zone A 100 -year flood plain. PARKING SCHEDULE Note: This minor site plan amendment does not propose any changes to the existing parking spaces or parking area. Required Parking: Industrial: 1 space per employee + 1 space per 500 sf open to the public + 2 spaces min. for customers. 12 employees + 0 sf open to the public + 2 customer = 14 Spaces Required Offices: 1 space per 200 SF of net floor area. 6,495 SF*.80 = 5,196 SF/200 = 26 Spaces Required Handicap: 2 Spaces Required (Included In Total Requirement) 40 Total Spaces Required Loading Spaces: 1 space for the first 10,000 SF of industrial floor area + 1 space for each additional 20,000 SF of industrial floor area. 20,300 SF Industrial Floor Area = 1 Loading Space Required Provided Parking: Industrial: 16 Spaces Provided Offices: 28 Spaces Provided Handicap: 2 Spaces Provided (Included In Total Provided) 44 Total Spaces Provided (Existing) Loading: 1 Space Provided (Existing) WATER & SANITARY SERVICES All water and sanitary sewer services are to be provided by the Albemarle County Service Authority. No changes to the existing services are proposed other than the relocation of the private sewer line. ELECTRIC /TELEPHONE /CABLE TV If feasible, all new service lines for electricity, telephone and cable TV are to be installed underground. Care is to be taken to assure their location does not conflict with any other aspects of the proposed site plan amendment. LANDSCAPING CANOPY LANDSCAPING REQUIRED: 10% of Total Site Area: 18,078 SF Canopy Street Trees: 1 per 50' of road frontage: 297/50 = 6 Trees Shade Trees: 1 per 10 New Internal Parking Spaces: 0/10 = 0 Trees Interior Landscaping: 5% of New Parking and Circulation Area 4,966 * .05 = 248 SF LANDSCAPING PROVIDED: 64,658 SF Existing Canopy To Remain = 1.25X64,658 =80,823 SF Canopy Provided 6 Street Trees 248 SF of Interior Landscaping 1 Filterra Deciduous Shrub (See Plant Schedule Below) NOTE: Contractor to apply mulch bedding around all proposed trees and shrubs. All other IandscaDed areas shall be sodded. Planting Schedule Botanical Name Common Name Min. Cal./Height Quantity Canopy SF Total Canopy SF LARGE SHADE TREES 0 Platanus x acerifolia London Planetree 1.5-1.75" Cal. 6 368 2,208 ORNAMENTAL TREES o E E ;= � Cercis canadensis Eastern Redbud 6-7' Height 2 124 248 SHRUBS Hydrangea arborescens Wild Hydrangea 1-1.5' Height 1 16 16 TOTAL QUANTITY: 9 TOTAL SF: 2,472 1 0 N N o E E ;= � 000 W U U N N 0 0 U U W w O 1 N M t2 V O O O � N N N 000� moCN Date 09/06Z2012 Scale N/A Sheet No. 01 OF 7 File No. 12.013 3-0-0 395 390 385 :• 375 370 —0+50 v ��JcK — _ p'�� public R�W ��o —�.� -�\ - •` -- SP ILI 5To o�ao e f� �_ = _ . _ — \...,. \ Egan—kii�n �St. f✓^ Q\Oret<e ��1✓ Ex. Ditch,__•._._-1-� r j �1 ��-� Ai; _pro - Se rip - i)ISt 325' Sight a_ _ — Note: Site Distance Field Verified By Engineer on October 19th 2012. SIGHT DISTANCE DETAIL CC3 SCALE: 1 "=30' \. 380 6—London ('v P I a n et reeGo/ ~`\ tr eel- - 390 :402. — R€�WALL — — — — — — 1K: 394_0 AX HEIG�FiT= 30' SU Truck -1y angec / 3 Np \ terr '-\""' R20.4 t � 1 / / � I I/ I I I 1 � 0+00 0+50 1+00 1+50 2+00 (--2 SIGHT DISTANCE PROFILE C3 SCALE: 1 "=30' NW 2+50 cr / ti� / / / / TM P 07700— 00— 00— 040M 0 w "�` 'nt Jy," `_�� /fir p -qOnn ctron. N"/Inv. 0�1t: 385.15, / �v} \ / / Yves Delorme, Inc. ,: �/ , / / �'~� , / Note: D13 2229 P G 3 3 2 Tire Path Shown Per AASHTO 30' SU Truck Design Vehicle. 2.06 Acres Zoned: LI Use: Office/Warehouse ,/.0.1 ,� / Ex. Water`''=`�� 395 390 ki � St�n9 / �2 OfFce S6S iOo �e?Zonih S,� e 385 380 4. 040 Of; ti�9 SF ce2 S 3 9 (&, &u/ /d'to" F F� SFd(T �o 375 10� 43toi� tpr��ti 370 3+00 Service Line \ To Remain�- t _ r DI .Sprinrinker Line To R-emea rr--� % ~ / / a a a k a 'oSt ells --4001 • • 20 40 .• Scale: 1 • 000w O 0U �, 0 0 z �1 w NW It �5 W z -4 z W �l w z IL M 0 I w� O =M �z z D w� N O Qy N W C� W F' >> N Q � V) W J J z Q � W 0 wft N Q w N U U M. SHIMP a ic. V0. 4P183 5 �3w� ��SSIONAL 2 a oEE W Q) 'Q) � V) EES U U o CC o c c a) rp �U O U O U � J w Wq �w CV 000 M I� v 1 O CV N N 000_Ln CV O O > CV r) O Z 0 LL / Z CW L O Z Z W 0 Q Z U g W J W � F" Q 0 W CO Z _ J 2 Q Date 09/06/2012 Scale 1 "=20' Sheet No. C3 OF 7 File No. 12.013 TYPICAL SEWER PIPE TRENCH INSTALLATION SCALE: NOT TO SCALE 2" OF SM -9.5A SUPERPAVE 0000000000000000��-8" — VDOT #21A BASESTONE C)- I IIII I EI I III IIII1 I 1III1 I 1III1 COMPACTED SUBGRADE�// CBR=10 TO BE FIELD VERIFIED TYPICAL NEW PAVEMENT SECTION Not To Scale 410 405 400 395 390 FRAME & COVER (SEE FIG. S - I - D,E) SLOPED AREA-'**" 2'- 0" STREET SURFACE OR NON - PAVED AREA 1' - 0" MAX 0+50 1+00 REMAINING BACKFILL. SHALL VERTIC-A-L- NOT CONTAIN ROCK MATERIAL 36"MI LARGER THAN 5" IN ANY �� DIMENSION 24"MI GDM 60. INTIAL BACKFILL* 8"M!N (6" LIFTS) EMBEDMENT * THOROUGHLY COMPACTED CONCRETE SECTIONS BY HAND OR APPROVED SPRING LINE MECHANICAL TAMPER OF PIPE 0i 4 16„ MAX HAUNCHING NO. 68 STONE — — #1 0 B EDDING 6" max PVI EL 4" min 0 FOUNDATION (SHALL BE REQUIRED WHEN SOIL 50.00VC CONDITIONS ARE UNSTABLE (ALL PIPE) NOTE 5' 1.OPEN CUTS IN PAVED AREAS WITHIN EXISTING VDOT RIGHT-OF-WAY SHALL BE BACKFILLED ENTIRELY WITH NO. 21A STONE. 2. FOR DUCTILE IRON PIPE THE BOTTOM OF THE TRENCH SHALL BE SCRAPED AND COMPACTED, AND ALL STONES REMOVED OR A 4" BEDDING OF NO. 68 STONE SHALL BE PROVIDED 7.50 3.WHERE ROCK IS ENCOUNTERED PIPE SHALL BE INSTALLED ON A MINIMUM 6" BEDDING OF NO. 68 STONE �. TYPICAL SEWER PIPE INSTALLATION IN TRENCH NTS OUTLET SHALL BE 0.20 FEET FIG. S - 3 CHANNEL TO BE TD -28 TYPICAL SEWER PIPE TRENCH INSTALLATION SCALE: NOT TO SCALE 2" OF SM -9.5A SUPERPAVE 0000000000000000��-8" — VDOT #21A BASESTONE C)- I IIII I EI I III IIII1 I 1III1 I 1III1 COMPACTED SUBGRADE�// CBR=10 TO BE FIELD VERIFIED TYPICAL NEW PAVEMENT SECTION Not To Scale 410 405 400 395 390 FRAME & COVER (SEE FIG. S - I - D,E) SLOPED AREA-'**" 2'- 0" STREET SURFACE OR NON - PAVED AREA 1' - 0" MAX N.T.S FIG. S -I -A TYPICAL MANHOLE SECTION W/ BRANCH TIE-IN SCALE: NOT TO SCALE DI -3B TOP=392.00 100 -YR WSE=388.95 15" RISER=388.70= D 10 -YR WSE=388.81-YR WSE=388.81 p2 -YR WSE=387.42-YR WSE=387.42 Aga 15" HDPE 5" ORIFICE=386.00 INV. OUT 386.00 6 STANDPIPE DETAIL C4 NOT TO SCALE 0+50 1+00 1+50 VERTIC-A-L- RUBBER COATED STEEL Q A �� N STEPS CAST IN PLACE3' GDM 60. - 0" MIN PRECAST REINFORCED 66 rn1Mh� BACKFILLED IN 6" LAYERS AND COMPACTED BY HAND TAMPERS OR CONCRETE SECTIONS ON 12" MIN PVI ST O RING SEALS 4 16„ MAX VE MINIMUM ELEVATION #1 0 U � PVI EL DIFFERENCE ACROSS M.H.5” 0 4' - 0" 50.00VC FROM INLET TO OUTLET N rn 5' 7SD SHALL BE 0.20 FEET, o PVI STA.0+65.00 CONCRETE—,VARIES r`?. 7.50 -Val ± �. DEPTH OF FLOW FILLETS PVI ELEV.394.07 ON OUTLET SHALL BE 0.20 FEET Q CHANNEL TO BE e' Q w 4 cO 3/4 DIAMETER OFj o CONTRIBUTING _j C3 SEWER. ,. a. w 4 12" A FILLETED INVERT FOR A SMOOT a INLET & OULET PIPE SHALL BE TRANSITION OF FLOW BETWEEN INLET & OUTLET PIPE SHALL BE p•. PROVIDED. MIN. 6" B EDDING NOTE W/ NO. 68 STONE 1. BEDDING THICKNESS REQUIREMENT SHOWN IS MINIMUM AND SHALL BE SPECIFICALLY DETERMINED BY THE CONSULTANT F0111 -IE SOIL CONDITIONS 2. THE CONSULTANT WILL DETERMINE WHETHER MANHOLES SHALL HAVE EXTENDED OR NON -EXTENDED BASES. D_a- 3, ALL JOINTS, LIFT HOLES, INLETS, OUTLETS TO BE SEALED & GROUTED INSIDE AND OUT. TYPICAL MANHOLE SECTION SHOWING BRANCH TIE-IN N.T.S FIG. S -I -A TYPICAL MANHOLE SECTION W/ BRANCH TIE-IN SCALE: NOT TO SCALE DI -3B TOP=392.00 100 -YR WSE=388.95 15" RISER=388.70= D 10 -YR WSE=388.81-YR WSE=388.81 p2 -YR WSE=387.42-YR WSE=387.42 Aga 15" HDPE 5" ORIFICE=386.00 INV. OUT 386.00 6 STANDPIPE DETAIL C4 NOT TO SCALE 410 405 400 395 390 385 385 -0+50 0+00 0+50 1+00 1+50 VERTIC-A-L- jr ° Q �� N 0000 GDM 60. OVC 66 rn1Mh� BACKFILLED IN 6" LAYERS AND COMPACTED BY HAND TAMPERS OR N ON PVI ST .1+50.00 O N 0 VE TICAL CURVE #1 0 U � PVI EL V.401.72 0 U 50.00VC N rn 113. 7SD co o PVI STA.0+65.00 ± r`?. 7.50 -Val ± �. ON PVI ELEV.394.07 ON OUTLET SHALL BE 0.20 FEET Q w e' Q w 4 cO 133.33SD o _j C3 © ,. c w (n INLET & OULET PIPE SHALL BE p•. n P 41 PROVIDED. n Qw 4> D_a- D-� Cn w w cn J w 1.00% lo EXISTING GRADE PROPOSED GRADE 5 p0 I I 410 405 400 395 390 385 385 -0+50 0+00 0+50 1+00 1+50 2+00 THE DROP CONNECTION SHALL BE ° Q �� N 0000 GDM LnN p 66 rn1Mh� BACKFILLED IN 6" LAYERS AND COMPACTED BY HAND TAMPERS OR N cV BACKFILLED WITH SELF -COMPACTING 16' MAX STONE, o U � -9)NEW ACCESS ROAD PROFILE C4 SCALE: 1 "=30' HORZ. 1 "=5' VERT. 2+50 SLOPED AREA V- 0" MAX ° FRAME & COVER SEE FIG. S -I -D, E STREET SURFACE OR NON -PAVED AREA 2--0- RUBBER COATED STEEL STEPS CAST IN PLACE © b' PRECAST REINFORCED CONCRETE ° SECTIONS WITH 'O" RING SEALS {j-----� OR APPROVED EQUAL --111- 3"- 0' MIN o 3/4 DIA OF LARGEST PIPE IN MANHOLE - MIN. 6" BEDDING WITH NO. 68 STONE NOTES: 1. BEDDING THICKNESS REQUIREMENTS SHOWN ARE MINIMUM AND SHALL BE SPECIFICALLY DETERMINED BY THE CONSULTANT FOR THE SOIL CONDITIONS. 2, THE CONSULTANT SHALL DETERMINE WHETHER MANHOLES SHALL HAVE EXTENDED OR NON -EXTENDED BASES. 3. ALL JOINTS, LIFT HOLES, INLETS, OUTLETS TO BE SEALED & GROUTED INSIDE AND OUT. 4. SPECIAL CONSIDERATION SHALL BE GIVEN FOR ENTRANCE DESIGN ON SEWERS WITH STEEP SLOPES. TYPICAL MANHOLE WITH DROP CONNECTION NTS FIG. S - I - C TYPICAL MANHOLE W/ DROP CONNECTION SCALE: NOT TO SCALE UNDERGROUND DETENTION PLAN VIEW SCALE: 1 ”=8' (Note: The underground detention system is designed and sized to function as an infiltration trench per VSWMH 3.10. Currently, soil tests for the location are unavailable. Engineer recommends the owner perform soil infiltration analysis to determine the feasibility of eliminating the planned IFilterra and installing an infiltration trench. 10 UNDERGROUND DETENTION CROSS SECTION NOT TO SCALE (4) 1" (25mm) DIA HOLES ON 32 3/4" (834mm) DIA BOLT CIRCLE. 2" (51mm) LETTERS O O (RECESSED FLUSH) [25mm] D p. , A �r CLOSED PICKHOLES r S 1 1/2" [38mm] Z Z O O r ' � i S W (2) CORED PICKBARS 1 1/8" (29mm) DIA BOSS D 27 1/2- DIA 1 1/2- [699mm] [38mm] 7" 26 1/4" [667mm] -� [178mm] 26" DIA 1 1/2" QO [660mm] [38mm] 1/4" (6mm) DIA 3 1/8" 1_ 24" DIA NEOPRENE GASKET [79mm] [606mm] <28 7j DIA 5/8" 1 rn t' [722mm] [t6mm] 23" DIA ' t [584rnm] 36" DIA 25" DIA [914mm] [635mm] FRAME SECTION O.D. OF GASKET GROOVE SECTION 410 405 400 395 390 385 380 375 TYPICAL MANHOLE FRAME AND COVER SCALE: NOT TO SCALE 410 405 400 395 390 385 380 375 0+00 0+50 1+00 1+50 EX. SAN -1 TO EX. SAN -2 SANITARY PROFILE SCALE: 1"=30' HORZ. 1"=10' VERT. 0+00 0+50 1+00 STR-1 TO STR-3 STORM PROFILE SCALE: 1"=30' HORZ. 1"=10' VERT. V m 0 • ao W oU ro • " I (� z w NW W z � 0 It z •, w w a 0 V) w a F w� N o N W Q w >> in W r bJ � J Z W 0 w _j Q N U �O� O U JUP a �I(A..,No.�5183 Zw� SIONAL THE DROP CONNECTION SHALL BE ° Q o DUCTILE IRON PIPE (CLASS 50) p 5" BACKFILLED IN 6" LAYERS AND COMPACTED BY HAND TAMPERS OR 12" MIN© o O BACKFILLED WITH SELF -COMPACTING 16' MAX STONE, o U � 5„� U U w MINIMUM ELEVATION DIFFERENCE 12"MIN 12 IN . ACROSS M.H. FROM INLET TO VARIE N r7 r7 "� d OUTLET SHALL BE 0.20 FEET q 000� e' 4 N A FILLETED INVERT FOR A SMOOTH N O ° TRANSITION OF FLOW BETWEEN © ,. INLET & OULET PIPE SHALL BE p•. n P 41 PROVIDED. n P' 3/4 DIA OF LARGEST PIPE IN MANHOLE - MIN. 6" BEDDING WITH NO. 68 STONE NOTES: 1. BEDDING THICKNESS REQUIREMENTS SHOWN ARE MINIMUM AND SHALL BE SPECIFICALLY DETERMINED BY THE CONSULTANT FOR THE SOIL CONDITIONS. 2, THE CONSULTANT SHALL DETERMINE WHETHER MANHOLES SHALL HAVE EXTENDED OR NON -EXTENDED BASES. 3. ALL JOINTS, LIFT HOLES, INLETS, OUTLETS TO BE SEALED & GROUTED INSIDE AND OUT. 4. SPECIAL CONSIDERATION SHALL BE GIVEN FOR ENTRANCE DESIGN ON SEWERS WITH STEEP SLOPES. TYPICAL MANHOLE WITH DROP CONNECTION NTS FIG. S - I - C TYPICAL MANHOLE W/ DROP CONNECTION SCALE: NOT TO SCALE UNDERGROUND DETENTION PLAN VIEW SCALE: 1 ”=8' (Note: The underground detention system is designed and sized to function as an infiltration trench per VSWMH 3.10. Currently, soil tests for the location are unavailable. Engineer recommends the owner perform soil infiltration analysis to determine the feasibility of eliminating the planned IFilterra and installing an infiltration trench. 10 UNDERGROUND DETENTION CROSS SECTION NOT TO SCALE (4) 1" (25mm) DIA HOLES ON 32 3/4" (834mm) DIA BOLT CIRCLE. 2" (51mm) LETTERS O O (RECESSED FLUSH) [25mm] D p. , A �r CLOSED PICKHOLES r S 1 1/2" [38mm] Z Z O O r ' � i S W (2) CORED PICKBARS 1 1/8" (29mm) DIA BOSS D 27 1/2- DIA 1 1/2- [699mm] [38mm] 7" 26 1/4" [667mm] -� [178mm] 26" DIA 1 1/2" QO [660mm] [38mm] 1/4" (6mm) DIA 3 1/8" 1_ 24" DIA NEOPRENE GASKET [79mm] [606mm] <28 7j DIA 5/8" 1 rn t' [722mm] [t6mm] 23" DIA ' t [584rnm] 36" DIA 25" DIA [914mm] [635mm] FRAME SECTION O.D. OF GASKET GROOVE SECTION 410 405 400 395 390 385 380 375 TYPICAL MANHOLE FRAME AND COVER SCALE: NOT TO SCALE 410 405 400 395 390 385 380 375 0+00 0+50 1+00 1+50 EX. SAN -1 TO EX. SAN -2 SANITARY PROFILE SCALE: 1"=30' HORZ. 1"=10' VERT. 0+00 0+50 1+00 STR-1 TO STR-3 STORM PROFILE SCALE: 1"=30' HORZ. 1"=10' VERT. V m 0 • ao W oU ro • " I (� z w NW W z � 0 It z •, w w a 0 V) w a F w� N o N W Q w >> in W r bJ � J Z W 0 w _j Q N U �O� O U JUP a �I(A..,No.�5183 Zw� SIONAL Date 09/06/2012 Scale N A Sheet No. C4 OF 7 File No. 12.013 W o oEEly- l OE Ci E C� o O o o U � ptO0 U U w N r7 r7 "� ONNN q 000� N O N O Date 09/06/2012 Scale N A Sheet No. C4 OF 7 File No. 12.013 PROJECT DESCRIPTION, GENERAL NOTES, ERASION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION PROJECT' DESCRIPTION THIS SITE IS AN EXISTING WAREHOUSE/OFFICE BUILDING ZONED LI WITHIN THE COUNTY OF ALBEMARLE. THE PROPOSAL IS THE DEVELOPMENT OF A NEW 20' ACCESS ROAD TO TAX MAP 77 PARCEL 40C1 WITH ASSOCIATED SITE WORK AND UTILITY LINE RELOCATION AS REQUIRED. THE TOTAL AREA OF DISTURBANCE IS 0.46 ACRES THE PROJECT INVOLVES THE FOLLOWING WORK ACTIVITIES: 1. THE CONTRACTOR SHALL OBTAIN ALL LOCAL AND STATE EROSION AND SEDIMENT PERMITTING REQUIREMENTS AND MAINTAIN ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS. 2. INSTALLATION OF TEMPORARY AND PERMANENT EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE PLAN AND DETAILS. 3. INSTALLATION OF FILTERRA STORM SEWER FOR STORMWATER TREATMENT. THE FILTERRA SHALL REMAIN BLOCKED UNTIL THE SITE HAS BEEN ADEQUATELY STABILIZED. 4. CONSTRUCTION OF ACCESS ROAD AND RETAINING WALL SHOWN ON THE SITE DEVELOPMENT PLAN. EXISTING SITE CONDITIONS THE SITE IS CURRENTLY ZONED LI WITH EXISTING WAREHOUSE AND OFFICE USE. REFER Tt0 SHEET C2 FOR LOCATIONS OF EXISTING PHYSICAL FEATURES. ADJACENIT PROPERTIES BOUNDED BY LIGHT INDUSTRIAL ZONED PROPERTIES AND PUBLIC STREET R/O/W SOILS SOIL INFORMATION FOR THIS SITE IS INCLUDED ON SHEET C6. ALL SOIL INFORMATION OBTAINED FROM THE USDA WEB SOIL SURVEY DATABASE. CRITICAL EROSION AREAS THE PROPOSED ACCESS ROAD IS PROPOSED ON AN EXISTING 2:1 SLOPE. THE CONTRACTOR SHALL TAKE ALL REASONABLE PRECAUTIONS TO PREVENT SILTATION RUNOFF TO ENTER THE EXISTING DITCH/ROADWAY AT THE TOE OF THIS SLOPE. SITE CONTROLS THE CONTRACTOR SHALL PROVIDE AND MAINTAIN SITE CONTROLS AND JOB SITE PROTECTION MEASURES AS SET FORTH IN THESE PLANS. ENVIRONMENTAL CONTROLS 1. CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL ENVIRONMENTAL CONTROL MEASURES SO AS TO COMPLY WITH LOCAL ORDINANCES, STATE AND FEDERAL LAWS AND REGULATIONS APPLICABLE TO WATER POLLUTION IN WATERS OF THE STATE AND IN INTERSTATE WATERS. 2. CONTRACTOR SHALL MINIMIZE THE POTENTIAL FOR AIR POLLUTION BY THE USE OF EMISSION CONTROL EQUIPMENT ON CONTRACTOR OPERATED EQUIPMENT, SHUT -DOWN OF MOTORIZED EQUIPMENT WHEN NOT IN USE, AND ACTIVELY CONTROLLING DUST EMISSIONS THROUGHOUT THE PROJECT. 3. ANY WASTE DISCOVERED DURING THE PROJECT SHALL NOT BE MOVED WITH OUT PRIOR AUTHORIZATION OF THE OWNER AND BE DIRECT -LOADED INTO COVERED ROLL -OFF CONTAINERS FOR TEMPORARY STORAGE PRIOR TO DISPOSAL IN A PERMITTED LANDFILL. EROSION & SEDIMENT CONTROL PERMITTING 1. CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL LOCAL AND STATE EROSION AND SEDIMENT CONTROL PERMITS AND MAINTAINING ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS. GENERAL NOTES 1. THE INFORMATION AND DATA SHOWN OR INDICATED WITH RESPECT TO THE EXISTING UNDERGROUND UTILITIES AT OR CONTIGUOUS TO THE SITE ARE BASED ON INFORMATION AND DATA FURNISHED TO THE OWNER AND ENGINEER BY THE OWNERS OF SUCH UNDERGROUND FACILITIES OR OTHERS. THE OWNER OR ENGINEER SHALL NOT EBE RESPONSIBLE FOR THE ACCURACY OR COMPLETENESS OF SUCH INFORMATION OR DATA. THE CONTRACTOR SHALL HAVE FULL RESPONSIBILITY FOR CONFIRMING THE ACCURACY OF THE DATA, FOR LOCATING ALL UNDERGROUND UTILITIES, FOR COORDINATION OF THE WORK WITH OWNERS OF SUCH UNDERGROUND UTILITIES DURING CONSTRUCTION, FOR -THE SAFETY AND PROTECTION THEREOF AND REPAIRING ANY DAMAGE THERETO RESULTING FROM THE WORK. ALL OF THESE CONDITIONS SHALL BE MET AT NO ADDITIONAL COST TO THE OWNER. THE CONTRACTOR SHALL CONTACT "MISS UTILITIES" OF VIRGINIA AT 1-800-552-7001 PRIOR TO THE START OF WORK. 2. WHEN WORKING ADJACENT TO EXISTING STRUCTURES, POLES, ETC., THE CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO PROTECT STRUCTURES FROM DAMAGE. REPLACEMENT OF DAMAGED STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE. 3. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTING ALL EXISTING SITE STRUCTURES FROM DAMAGE AND COORDINATING WORK SO THAT THE OWNER CAN MAKE NECESSARY ARRANGEMENTS TO MODIFY/PROTECT EXISTING STRUCTURES FROM DAMAGES. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING ALL UTILITY OWNERS, ADJACENT LAND OWNERS WHOSE PROPERTY MAY BE IMPACTED PRIOR TO COMPLETING ANY OFF-SITE IWORK. 5. CONTRACTOR SHALL NOTIFY AND COORDINATE ALL WORK INVOLVING EXISTING UTILITIES WITH UTILITY OWNERS, AT LEAST 72 HOURS PRIOR TO THE START OF CONSTRUCTION. 6. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND ENGINEER. 8. CONTRACTOR SHALL ADJUST ALL APPURTENANCES AS REQUIRED TO MATCH NEW GRADES. THE EXACT LOCATION OF APPURTENANCES SHALL BE COORDINATED WITH THE OWNER. 9. CONTRACTOR SHALL SUBMIT FOR THE APPROVAL OF THE OWNER SUBMITTALS OF ALL SPECIFIED MATERIALS LISTED IN THE PLANS, TO INCLUDE SHOP DRAWINGS, MANUFACTURER'S SPECIFICATIONS AND LABORATORY REPORTS. THE OWNER'S APPROVAL OF SUBMITTALS WILL BE GENERAL AND WILL NOT RELIEVE THE THE CONTRACTOR FROM THE RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR THAT MAY EXIST. GENERAL EROSION AND SEDIMENT CONTROL NOTES: 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. 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 REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 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 EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 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. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 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 CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 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. 12. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:00AM TO 9:OOPM. 13. 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 TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 14. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 15. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. 16. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. 17. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND 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 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 MUST BE CLEANED AND REPAIRED IMMEDIATELY. 18. 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 CITY EROSION CONTROL INSPECTOR. EROSION & SEDIMENT CONTROLS 1. CONSTRUCTION ENTRANCE: INSTALL AND MAINTAIN A CONSTRUCTION ENTRANCE, AS NECESSARY, THAT MEETS THE REQUIREMENTS OF STD. AND SPEC. 3.02 AND CONFORMS WITH THE REQUIREMENTS OF THE EROSION & SEDIMENT CONTROL PLAN. 2. SILT FENCE: INSTALL AND MAINTAIN SILT FENCE THAT MEETS THE REQUIREMENTS OF STD. AND SPEC. 3.05. THIS SILT FENCE SHALL BE INSTALLED AS SHOWN ON THE EROSION & SEDIMENT CONTROL PLAN AND ACCOMPANYING DETAILS FOR THE PURPOSE OF INTERCEPTING SILT-LADIEN RUNOFF BEFORE IT IS DISCHARGED FROM THE SITE. THE SILT FENCE SHALL BE INSPECTED AND MAINTAINED TO ENSURE CONTINUED PERFORMANCE. 3. MULCHING: APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE TO PREVENT EROSION AND FOSTER THE GROWTH OF VEGETATION. ORGANIC MULCHES (STRAW) HAVE BEEN FOUND TO BE THE MOST EFFECTIVE. 4. TEMPORARY SEEDING: TEMPORARY SEEDING SHALL BE APPLIED TO ALL DENUDED AREAS WITHIN SEVEN (7) DAYS TO DENUDED AREAS THAT MAY OR MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. TEMPORARY SEEDING SHALL BE APPLIED IN CONFORMANCE WITH STD. AND SPEC. 3.31. 5. PERMANENT SEEDING: ALL DITCHES AND ADJACENT AREAS WITHIN 15 IFT OF THE EDGE OF THE DITCHES SHALL BE SEEDED IN CONFORMANCE WITH STD. AND SPEC. 3.32. PERMANENT SEEDING SHALL BE APPLIED TO AREAS DELINEATED ON THESE PLANS WITHIN SEVEN (7) DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. PERMANENT SEEDING STABILIZES DISTURBED AREAS AND ENHANCES THE BEAUTY OF THE SITE. 6. DUST CONTROL: CONDUCT DUST CONTROL OPERATIONS NECESSARY TO MET THE REQUIREMENTS OF STD. & SPEC. 3.39 AS REQUIRED TO CONTROL SURFACE AND AIRBORNE MOVEMENT OF DUST. OFFSITE AREAS: THIS SITE WILL REQUIRE REMOVAL OF EXCESS DIRT. MATERIALS REMOVED FROM THIS SITE SHALL BE EXPORTED TO A LOCATION WITH AN APPROVED EROSION AND SEDIMENT CONTROL PLAN IN PLACE. STORM WATER MANAGEMENT: STORM WATER MANAGEMENT IS ADDRESSED BY ADDING A NEW FILTERRA TREATMENT SYSTEM. MANAGEMENT STRATEGY AND SEQUENCE OF CONSTRUCTION THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION: STAGE 1 1. INSTALL CONSTRUCTION ENTRANCE. 2. INSTALL SILT FENCE AT THE LOCATION SHOWN ON THE EROSION & SEDIMENT CONTROL PLAN. STAGE 2 1. CONTACT THE ENGINEER AND CITY OF CHARLOTTESVILLE FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. STAGE 3 1. UPON APPROVAL OF ALL E&S CONTROL MEASURES, BEGIN WHOLESALE CLEARING, GRADING AND STOCKPILING. 2. INSTALL INFILTRATION SYSTEM THE DROP INLETS ATTACHED TO THE INFILTRATION TRENCH SHALL BE CAPPED AND SEALED TO PREVENT THE ENTRY OF SEDIMENT. CONTRACTOR SHALL TAKE ALL NECESSARY STEPS TO REDUCE SILT ENTERING INTO THE STORM SEWER SYSTEM. 3. INSTALL STORM SEWER. CONSTRUCT A TEMPORARY RISER AND SAFETY FENCE PER DETAIL 8/C10 FOR INLET ST -1 TO BE MAINTAINED UNTIL THE CURB IS CONSTRUCTED, AT WHICH POINT THE TEMPORARY RISER SHALL BE REMOVED AND DROP INLET PROTECTION SHALL BE INSTALLED PER DETAIL 4/C10. 4. BEGIN CONSTRUCTION OF BUILDINGS AND PARKING AS SHOWN ON THE SITE DEVELOPMENT PLAN. 5. PROVIDE CONSTRUCTION ROAD STABILIZATION ON PARKING LOT AND PERMANENT SEEDING AND MULCHING ON BUILDING AREAS NOT YET CONSTRUCTED. 6. MAINTAIN ALL E&S CONTROL MEASURES. 7. THE INFILTRATION TRENCH SHALL NOT BE OPENED TO SITE RUNOFF UNTIL CONSTRUCTION ROAD STABILIZATION HAS BEEN APPLIED AND PERMANENT SEEDING IS ESTABLISHED. STAGE 4 1. ESTABLISH AND MAINTAIN PERMANENT STABILIZATION, INCLUDING VEGETATION OF ALL SLOPES AND GRASSED AREAS. 2. ENTER AND INSPECT UNDERGROUND DETENTION SYSTEM. REMOVE ANY SILT FROM PERFORATED CMP STORAGE PIPES. CONSTRUCTION MAINTENANCE THE FOLLOWING CONSTRUCTION MAINTENANCE PRACTICES SHALL BE FOLLOWED AT THE SITE. 1. ALL E&S CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAIN EVENT. ALL DEFICIENCIES IDENTIFIED DURING THESE INSPECTIONS SHALL BE CORRECTED AS SOON AS PRACTICABLE. 2. THE SILT FENCE BARRIER SHALL BE REGULARLY CHECKED FOR UNDERMINING, DETERIORATION OR SIGNIFICANT EROSION. SEDIMENT SHALL BE REMOVED AFTER EACH STORM EVENT AND WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF THE HEIGHT OF THE CONTROL. 3. THE CONTRACTOR IS RESPONSIBLE FOR ADHERING TO ALL MAINTENANCE REQUIREMENTS SET FORTH IN THE CURRENT EDITION OF THE VIRGINIA SEDIMENT AND EROSION CONTROL MANUAL, OTHER APPLICABLE COMMONWEALTH OF VIRGINIA REGULATIONS AND THE PROJECT SPECIFICATIONS. 4. ALL SEEDED AREAS WILL BE REGULARLY CHECKED TO ENSURE THAT A GOOD STAND OF GRASS IS MAINTAINED. 5. AREAS WITH RIP -RAP SHOULD BE REGULARLY INSPECTED TO DETERMINE IF HIGH FLOWS HAVE DAMAGED THESE CONTROLS OR CAUSED EXCESSIVE SEDIMENT DEPOSITION. ALL AREAS SHALL BE MAINTAINED IN ACCORDANCE WITH THE REQUIREMENTS OF THIS E&S CONTROL PLAN. MINIMUM STANDARDS (MS): All applicable Virginia Erosion and Sediment Control Regulations and Minimum Standards shall be adhered to during all phases of construction. These include, but are not limited to the following: 1. STABILIZATION OF DENUDED AREAS: Permanent or temporary soil stabilization shall be applied to bare areas within seven days after final grade is reached on any portion of the site. Temporary soil stabilization shall be applied within seven days to denuded areas that may not be at final grade, but will remain dormant or undisturbed for longer than 30 days. Permanent stabilization shall be applied at areas that are to be left dormant for more than 1 year. 2. STABILIZATION OF SOIL STOCKPILES: During construction of the project, soil stockpiles shall be stabilized or protected with sediment trapping measures. The applicant is responsible for temporary protection and permanent stabilization of all soil stockpiles on site as well as soil intentionally transported from the project site. 3. PERMANENT VEGETATIVE COVER A permanent vegetative cover shall be established on denuded areas not otherwise permanently stabilized. Permanent vegetation shall not be considered established until a ground cover is achieve that, in the opinion of the City Inspector, is uniform and mature enough to survive to inhibit erosion. 4. TIMING & STABILIZATION OF SILT TRAPPING MEASURES: Sediment basins and traps, perimeter dikes, sediment barriers and other measures intended to trap sediment shall be constructed as a first step in any land disturbing activity and shall be made functional before upslope land disturbance takes place. 5. STABILIZATION OF EARTHEN STRUCTURES: Stabilization measures shall be applied to earthen structures such as dams, dikes and diversions immediately after installation. 6. SEDIMENT TRAPS AND BASINS: A sediment basin shall control surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal to three acres. The sediment basin shall be designed and constructed to accommodate the anticipated sediment loading for the land disturbing activity. The outfall device or system device shall take into account the total drainage area flowing through the disturbed area to be served by the basin. 7. CUT AND FILL SLOPES: Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes that are found to be eroding excessively within one year of permanent stabilization shall be provided with additional slope stabilizing measures until the problem is corrected. 8. CONCENTRATED RUN-OFF DOWN CUT OR FILL SLOPES: Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate temporary or permanent channel, flume, or slope drain structure. 9. WATER SEEPS FROM A SLOPE FACE: Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. 10. STORM SEWER INLET PROTECTION: e All storm sewer inlets that are made operable during construction shall be protected so that sediment -laden water cannot enter the conveyance system without first being filtered or otherwise treated to remove sediment. 11. STABILIZATION OF OUTLETS: Before newly constructed stormwater conveyance channels are made operational, adequate outlet protection and any required temporary or permanent channel lining shall be installed in both the conveyance channel and receiving channel. 12. WORK IN LIVE WATERCOURSES: When work in a live watercourse is performed, precautions shall be taken to minimize encroachment, control sediment transport and stabilize the work area to the greatest extent possible during construction. Nonerodible material shall be used for the construction of causeways and cofferdams. Earthen fill may be used for these structures if armored by nonerodible cover materials. 13. CROSSING A LIVE WATERCOURSE: When a live watercourse must be crossed by construction vehicles more than twice in any six month period, a temporary stream crossing constructed of nonerodible materials shall be provided. 14. APPLICABLE REGULATIONS: All applicable federal, state and local regulations pertaining to working in or crossing live watercourses shall be met. 15. STABILIZATION OF BED AND BANKS The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is completed. 16. UNDERGROUND UTILITIES: Underground utilities shall be installed in accordance with the following standards in addition to other criteria: a.No more than 500 linear feet of trench may be opened at one time. b.Excavated material shall be placed on the uphill side of trenches c.Effluent for dewatering operations shall be filtered or passed through approved sediment trapping device, or both, and discharged in a manner that does not adversely affect flowing streams or offsite property. d.Material used for backfilling trenches shall be properly compacted in order to minimize erosion and promote stabilization. e.Restabilization shall be accomplished in accordance with these regulations. f. Applicable safety regulations shall be complied with. 17. CONSTRUCTION ACCESS ROUTES: Where construction vehicle access routes intersect paved public roads, provisions shall be made to minimize the transport of sediment by vehicular tracking onto paved surfaces. Where sediment is transported on to a public road surface, the road shall be cleaned thoroughly at the end of each day. Sediment shall be removed by shoveling or sweeping and transported to a sediment control disposal area. Street washing shall be allowed only after sediment is removed in this manner. This provision shall apply to individual lots as well as to larger land disturbing activities. 18.TEMPORARY E&S CONTROL MEASURE REMOVAL: All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or after temporary measures are no longer needed, unless otherwise authorized by the local program authority. Trapped sediment and the disturbed soil areas resulting from the disposition of temporary measures shall be permanently stabilized to prevent further erosion and sediment. 19. ADEQUACY OF RECEIVING CHANNELS: Properties and waterways downstream from the development site shall be protected from sediment deposition, erosion and damage, due to increases in volume, velocity and peak flow rates of stormwater runoff for the stated frequency storm of 24-hour duration. 02 000 O 0 co I Z N W W " Z It Z v W . I w� Z oI _V) a® Z N 0 N N W �Q > > in w J N J Z V) Q � 0 W J o! Q O I N 0 00,0 O U JU N -M. HIMP a �ic. No.4P183 AV �0 3� S- ONAL W� 0) 0 a a a oEE� TUU o W N U 0 0 w O O N M r2 OU C14 C14 O O N Cn W\ \ NOO o- Date 09/06/2012 Scale N/A Sheet No. C5 OF 7 File No. 12.013 Itch Br 0,dw GOA P� ay-� .5tre t Ex. 6" DIS ter�� Li ~ 4\ �O�yr .� -1VI. IMP a ic.o. 4P183 3 n �� KS` 101VAL Vlt s go 0 f✓-� Cn %`Y cn (n .2 Cn 2L CTUU o _O = a) 7 0 U U U Critical Slopes / TO N M !J O N O \� O CO 07 Ln SOIL EROSION & SEDIMENT CONTROL SYMBOLS W N O NO l 11 -r- SYMBOL. N0. TITLE KEY ��NtYI O 0 - 0 3.02 CONSTRUCTION ENTRANCE CE O r X X X 3.05 SUPER SILT FENCE SS O l 3.07 INLET PROTECTION IP k ® O 3.18 OUTLET PROTECTION OP Z O � �� TS 3.31 TEMPORARY SEEDING TS LL PS 3.32 PERMANENT SEEDING PS I - Z M 3.35 MULCHING MU W DC 3.39 DUST CONTROL DC Z Z W ' SOIL DIVIDE � Q 0 ® O ® ® ® LIMITS OF DISTURBANCE Z U - - - - - - - - - - - - - EXISTING CONTOUR J W (L -� PROPOSED CONTOUR W � Q N a - SOILS LEGEND W 12C — Catoctin Silt Loam — 7 to 15% Slopes 0 m 12D — Catoctin Silt Loam — 15 to 25% Slopes — J 12E — Catoctin Silt Loam — 25 to 45% Slopes Q 88 — Udorthents, Loamy — (Predominant) Date 09/06/2012 Scale 1"--20' 20 0 20 40 60 i' Sheet No. RMAM M93 131 Scale: 1 "=20' C6 OF 7 File No. 12.013 ORGANIC MULCH MATERIALS AND APPLICATION RATES TABLE 3.31-B RATES: ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS MULCHES: NOTES: per Acre Per 1000 sq. ft. Straw or Hay 12 - 2 tons 70 - 90 lbs. Free from weeds and coarse Rv mean runoff coefficient, Rv = 0.05 + 0.009(1) (Minimum 2 Pi small storm correction factor, 0.9 matter. Must be anchored. 1 percent imperviousness tons for P annual precipitation, 43" in Albemarle Spread with mulch blower or A project area in acres in subject drainage area, winter cover) C pollutant concentration, mg/I or ppm target phosphorus by hand. Fiber Mulch Minimum 35 lbs. Do not use as mulch for RR required removal , L(post) - f x L(pre) 1500 lbs. %RR removal efficiency, RR100/L(post) winter cover or during hot, Impervious Cover Computation (values in feet &square feet) _ Item dry periods.* Apply as pre -development _ ?Area stdevelopment slurry. Corn Stalks 4 - 6 tons 185 - 275 lbs. Cut or shredded in 4-6" Length Width subtotal I j- _.. THROAT OPENING (TYP) FLOWLINE ELEV `Ar FLOWL114E ELEV'B' lengths. Air-dried. Do not o'OT 0 i 0 O 0 o use in fine turf aeras. Apply JOINT (TYP) STRUCTURE o. o of with mulch blower or by o, hand. Wood Chips 4 - 6 tons 185 - 275 lbs. Free of coarse matter. Air- TO STORM DRAIN 0 dried. Treat with 12 lbs 1 1 0 0 nitrogen per ton. Do not Driveways Length Width no. subtotal - I Length Width no. subtotal use in fine turf areas. Apply EFFLUENT IN and walks 0 U(--� 01 0_ with mulch blower, chip CROSS SECTION handler, or by hand. Bark Chips 50 - 70 cu. 1-2 cu. yds. Free of coarse matter. Air - or yds. DATE: 07-07-06 dried. Do not use in fine Shredded - -01 . turf areas. Apply with Bark Park."____`_ - ing Lots 1 2 3 41 mulch blower, chip handler, 1 2 3 4 Copyrigbt C 2007 by Arnericast or by hand. * When fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate of 2000 lbs./ac. or 45 lbs./1000 sq. ft. Source: Va. DWSC NuIchEg (MU: Not To Scale PERMANENT SEEDING SPECIFICATIONS (PS February 16 through April 30: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Annual Rye - 20 lbs/acre. Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre when slopes are greater than 3:1. May 1 through August 15: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Foxtalil Millet - 20 lbs/acre. Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 Ibs/acre when slopes are greater than 3:1. August 16 through October 31: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Annual Rye - 20 lbs/acre. Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre when slopes are greater than 3:1. November 1 through February 15: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Winter Rye - 20 lbs/acre. Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre when slopes are greater than 3:1. MULCHING SPECIFICATIONS: Straw or hay at a rate of 2 tons/acre. Must be anchored. Spread with mulch blower or by hand. LIME AND FERTILIZER SPECIFICATIONS: Lime and fertilizer needs should be determined by soil tests. Soil tests may be preformed by the Cooperative Extension Service Soil Testing Laboratory at VPI&SU, or by a reputable commercial laboratory. Information concerning the State Soil Testing Laboratory is available from County Extension Agents. Under unusual conditions where it is not possible to obtain a soil test, the following soil amendments will be applied: For Permanent Seeding: Seeded areas shall be limed at a rate of 2 tons per acre, and fertilized at a rate of 1,000 lbs. per acre of 10-20-10 (23 lbs. per 1,000 square feet) or equivalent. For Temporary Seeding: Seeded areas shall be limed at a rate of 2 tons per acre, and fertilized at a rate of 600 lbs. per acre of 10-20-10 (14 lbs. per 1,000 square feet) or equivalent. Permanent Seeding (Ps. Not To Scale STONE --70' MIN. CONSTRUCTION ACCESS 3" SM -2A ASPHALT TOP COURSE L -EXISTING 2� 2 MENT 6` MIN. 21A AGGREGATE, BASE PROFIF STONE 70' Mx CONSTRUCTION ASPHALT PAVED ACCESS A WASHRACK EXISTING 2% 2% PAVEMENT gra 12' IA',N.*-- *MUST EXTEND FULL WIDTHLoPOSITIVE DRAINAGE OF INGRESS AND EGRESS � TO SEDIMENT OPERATION TRAPPING DEVICE PLAN 12.' MIN. POSrrivr DRAINAGE 2TO SEDIMENT _ % TRAPPING DEVICE FILTER CLOTfi-✓ SECTION A --A A inini nun water tap of 1 inch n lust be installed %ith a nnininniun 1 inch ballcock shutoffvalve supplying a wash hose -vitith a diameter of 1.5 i nclies for adequate constant pressure. Wash water must be carried away from the entrance to an approved settling area to remove sediment: All sed nnent shall be preventedfrom entering Storni drains, ditches or watercourses. PAVED WASH RACK NO SCALE Paved Construction Entrance WLWash Rack Not To Scale 6 Temporary Seeding TS C7 Not To Scale 45" (MIN.) 'IPE OUTLET TO WELL 1EFINED CHANNEL U 6" SECTION A -A f 7 - FILTER CLOTH KEY IN 6"-9"; RECOMMENDED FOR ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.18-4. 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 INCHES. 7 OUTLET PROTECTION (OP) C7 Not To Scale ILI CONSTRUCTION OF A SILT FENCE (WITH WIRE S UPPOR T) 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE TABLE 3.31-B Albemarle County Water Protection Ordinance: Modified Simple Method ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS Plan: Yves Delormes Inc. Water Resources Area: Development Area "QUICK REFERENCE FOR ALL REGIONS" Preparers Lauren Gilroy „� , ......,.... Date: 23 -Jul -12 Rate Project Drainage Area Designation Planting Dates Species (lbs.lacr L storm pollutant export 1n pounds, L = [P(Pj)Rv/121 [ C(A)2.721 Sept. 1 - Feb. 15 50/50 Mix of Rv mean runoff coefficient, Rv = 0.05 + 0.009(1) Annual Ryegrass Pi small storm correction factor, 0.9 (Lolium multi-florum) 1 percent imperviousness & 50- 100 P annual precipitation, 43" in Albemarle Cereal (Winter) Rye A project area in acres in subject drainage area, (Secale cereale) C pollutant concentration, mg/I or ppm target phosphorus Feb. 16 - Apr. 30 Annual Ryegrass 60- 100 f factor applied to RR (Lolium multi-florum) V required treatment volume in cy, 0.5" over imperv. area = A(1)43560(0.5/12)/27 May 1 - Aug 31 German Millet 50 RR required removal , L(post) - f x L(pre) (Setaria italica) %RR removal efficiency, RR100/L(post) Source: Va. DSWC 6 Temporary Seeding TS C7 Not To Scale 45" (MIN.) 'IPE OUTLET TO WELL 1EFINED CHANNEL U 6" SECTION A -A f 7 - FILTER CLOTH KEY IN 6"-9"; RECOMMENDED FOR ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.18-4. 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 INCHES. 7 OUTLET PROTECTION (OP) C7 Not To Scale ILI CONSTRUCTION OF A SILT FENCE (WITH WIRE S UPPOR T) 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE OF POSTS. Albemarle County Water Protection Ordinance: Modified Simple Method CURB INLET Plan: Yves Delormes Inc. Water Resources Area: Development Area FILTERRA �� � a FLOW 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. �f �1 �IIIIII 4 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. r G FLOW - i EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. 3 Sit Fence C7 Not To Scale With Wire Support) (SSF Short Version BMP Computations Albemarle County Water Protection Ordinance: Modified Simple Method CURB INLET Plan: Yves Delormes Inc. Water Resources Area: Development Area FILTERRA �� � a Preparers Lauren Gilroy „� , ......,.... Date: 23 -Jul -12 Project Drainage Area Designation LLLLL LLLLL L storm pollutant export 1n pounds, L = [P(Pj)Rv/121 [ C(A)2.721 Rv mean runoff coefficient, Rv = 0.05 + 0.009(1) Pi small storm correction factor, 0.9 1 percent imperviousness P annual precipitation, 43" in Albemarle A project area in acres in subject drainage area, C pollutant concentration, mg/I or ppm target phosphorus ELEV 'A' MUST f factor applied to RR CURB AND STANDARD TO V required treatment volume in cy, 0.5" over imperv. area = A(1)43560(0.5/12)/27 RR required removal , L(post) - f x L(pre) THAN ELEV 'B' %RR removal efficiency, RR100/L(post) Impervious Cover Computation (values in feet &square feet) _ Item CURB INLET THROAT pre -development _ ?Area stdevelopment Area FLOW Roads Leggth Width subtotal I Length Width subtotal I j- _.. THROAT OPENING (TYP) FLOWLINE ELEV `Ar FLOWL114E ELEV'B' ELEVATION VIEW o'OT 0 i 0 O 0 o JOINT (TYP) STRUCTURE o. o of o, z 04 i 0; ol of TO STORM DRAIN 0 0 1 1 0 0 Driveways Length Width no. subtotal - I Length Width no. subtotal BY AMERICAST EFFLUENT IN and walks 0 U(--� 01 0_ (MUST BE LOWER), CROSS SECTION 0 D j 0 0 Ot 0' DATE: 07-07-06 0 0 0 - -01 . Park."____`_ - ing Lots 1 2 3 41 FILTERRA® TYPICAL FLOWLINE 1 2 3 4 Copyrigbt C 2007 by Arnericast AND OULET PIPE RELATIONSHIP 2528: 1 2528 25281 49661 01 7494; Gravel areas Area I AND 8,569,321 Area 1 x o.70 = 0 x 0.70 = _ 0' Structures Area no. subtotal 1 Area no. subtotal _0 w_ -OT 01 of of - ----- o I 01 _0, Actively -grazed pasture & Area Area yards and cultivated turf x 0.08 _ 0.08 = 0; -��W _..- _..._......_0 _ _�w_x Active crop land Are_ aArea - x0.25= 0 - x0.25= 01 Other Impervious Areas Impervious Cover 13% -� 40 % I(pre) I(post) Rv(0�41) � 11.6 New Development (For Development Areas, existing impervious cover <= 201 C - TRv{pre) _L(pre) Qpost) vRR % R' Area Type_ _._ __.___ 7b'?';,,i€I'"`:"1>IO.{) ,.; ..< bl4 0.23 0.61 s 1.08 0.47 44/° bevela mentArea P w. sI 0.17 0.2 4 1 Drinking Water Watersheds Qb' 3 0.5 , 0.3 58 /° g ate »: >„M:..>:;:l,v"> I<#<»'i€€>al 0.17 i 0.26 0.62 ; 0.36 58% Other Rural Land ` min. values Redevelopment (For Development AreasLexistfng impervious cover > 20%)- ......... ... . C f i re Rv re L re L ost RR /° R Area T it 0 ° 0.23 1 1.08 4 / Ar a {7bl 0 6 0.53 9° o _Development_ _ 64/°: Drinking Water Watersheds E t.......'. `.t ........`....4*'!� .--- 0.17......._ 0 26 ----0_62 0.40 .� ,64% Other Rural Land BMP Computations Worksheet Not To Scale V m ` 0 W co 00 Iz W N W W �z to 0 I -Z CURB INLET v W I w a �- Z Q O � V) °f : m N - In WIRE SCREEN CONCRETE BLOCK i_J In _ GRAVEL FILTER _ > z w r� 2 o RUNOFF v W WATER WITH OVERFLOW FILTERED WATER '.�� Q SEDIMENT O I ,. ..�..�;• O SEDIMENT T11 O�4i OP WIRE SCREEN 2" X 4" WOOD STUD CURB INLET 0 U J TI SHIMP a SPECIAL APPLICATION Lic. Tjo.4 183 THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE AN OVERFLOW CAPABILITY IS NECESSARY �sSIGNAL TO PREVENT EXCESSIVE PONDING IN FRONT OF THE STRUCTURE. * GRAVEL SHALL BE VDOT #3, #357 OR #5 COARSE AGGREGATE r_4"Drop Inlet Protection P IC7 Not To Scale Typical Filterra Detail Not To Scale l� .0 o A�1 oEE� W � TUU O o o :3 = U 0 U U o O � L O l� [w Nr7r7 OO O o C", � U000� W N N O O Date 09/06/2012 Scale N/A Sheet No. C7 OF 7 File No. 12.013- 4. 2.013 CURB INLET FILTERRA �� � a ��O 11U"-1 �'oaollp 60Q�o� LLLLL LLLLL PLAN VIEW STANDARD TRANSITION FROM ELEV 'A' MUST CURB AND STANDARD TO BE HIGHER GUTTER DEPRESSED (TYP) GUTTER (TYP) THAN ELEV 'B' SLOPE � FILTERRA THROAT CURB INLET THROAT GUTTER FLOW GUTTER FLOW DEPRESSED GUTTER AT FILTERRA BYPASS CURB INLET THROAT OPENING (TYP) FLOWLINE ELEV `Ar FLOWL114E ELEV'B' ELEVATION VIEW INTERLOCKING FILTERRA UNIT 1 STORMWATER JOINT (TYP) STRUCTURE z 04 i OUTLET PIPE (BY OTHERS) CONNECT TO STORM DRAIN - PERFORATED UNDERDRAIN SYSTEM INNWRT EFFLUENT sroR ATER {3'-67 STRUCTURE BY AMERICAST EFFLUENT IN (MUST BE LOWER), CROSS SECTION MODIFICATIONS OF DRAWINGS ARE ONLY PERMITTED BY WRITTEN AUTHORIZATION FROM FILTERRA DATE: 07-07-06 DWG: FLP -2 L1l1LIL�Li� ��L,-LTJ L1® FILTERRA® TYPICAL FLOWLINE ° p (� 0 Copyrigbt C 2007 by Arnericast AND OULET PIPE RELATIONSHIP US PAT 6,277,274 AND 8,569,321 Typical Filterra Detail Not To Scale l� .0 o A�1 oEE� W � TUU O o o :3 = U 0 U U o O � L O l� [w Nr7r7 OO O o C", � U000� W N N O O Date 09/06/2012 Scale N/A Sheet No. C7 OF 7 File No. 12.013- 4. 2.013