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HomeMy WebLinkAboutWPO202100030 Plan - VSMP 2021-05-10 w '`��.:\L7'H ���, y1S`��,�--�-�"'� t,'f'Ci � -,�/..�....�.� 2 " ,_�� \TH��\1.SHUq'ALTCR y Lr \:, Oa11=U�-151 "•p�Jr OS/10/2021 ,�� .-��S'�r>�a i t'`"`. � � u N C Q O � E W v E W � F V � 3 ¢ LL O � LL � ^ 0 � ..-i � � U m Z w J —in O H � � v�i � "' a ,z, � - a U ¢a' � N �` p o Q � � = V � � O � a � � c � � W CD U NTY � F ALB E MARLE VI RG I N IA � M � � � OJ J ' � � � ALBEMARLE C � UNTY PUBLIC SCHQ4LS DISTRICT j 0 _ � � 0 � SITE DATA: O 5/ 1 O/ � O � 1 ~ 0 TAX MAP PARCEL: 09100-00-00-00200 w � _ ¢ LIMITS OF DISTURBANCE: 0.50 AC ¢ � z 0 ZONING: R15 RESIDENTIAL ti) DATE > SETBACK: 15' FRONT ° � ' ' � .Sheet List Table � OS/10/2021 5' SIDE Q Coliirnuruly - o 20' REAR ! 0 D C011292 �` Sheet Number Sheet Title r DRAWN BY MAGISTERIAL DISTRICT: SCOTTESVILLE 0 v 0 �; ;; � � C0.0 COVER � 5mS C1.0 NOTES AND DETIALS DESIGNED BY SOURCE TOPOGRAPHY: TIMMONS GROUP, APRIL 2021 M i L L C R E E K "� C1.1 NOTES AND DETAILS � AK HILL i � vr � I N D U S T R I A L P A R K C2.o EXISTING CONDITIONS AND DEMO PLAN • AM DATUM: HORIZONTAL: NAD83 (NA2011) VIRGINIA STATE GRID SOUTH i�a� ZONE C3.0 EROSION & SEDIMENT CONTROL NOTES & DETAILS • CHECKED BY VERTICAL: NAVD88 ESTABLISHED THROUGH LEICA " �Cf18fI0tt2Sb'IIIP CIOS�' - SMARTNET C3.1 EROSION & SEDIMENT CONTROL NOTES & DETAILS : • JS C3.2 EROSION & SEDIMENT CONTROL PLAN - PHASE I SCALE BUILDING HEIGHT: 18.33' (ADDITION) C3.3 EROSION & SEDIMENT CONTROL PLAN - PHASE II • AS SHOWN BUILDING AREA: 7,750 SF C4.0 LAYOUT AND UTILITY PLAN • PROPOSED USES: MODULAR CLASSROOM ADDITION AND ASSOCIATED SITE WORK C5.0 GRADING AND DRAINAGE PLAN • C6.0 STORMWATER MANAGEMENT PLAN � WETLAND IMPACTS: NONE C6.1 STORMWATER CALCULATIONS C WATER SUPPLY: ACSA SITE LOCATION C6.2 STORMWATER CALCULATIONS G TOTAL NUMBER OF SHEETS = 13 SANITARY SEWER: EXISTING SEWER SYSTEM O � DRAINAGE DISTRICT: MOORES CREEK � a � Z „ 3 THERE ARE CRITICAL SLOPES LOCATED WITHIN THE PROJECT LIMITS. ( n � _ V I � � THERE ARE NO CONSTRUCTION ACTIVITIES PROPOSED WITHIN THE 100-YR FLOODPLAIN. � � o THE SITE IS NOT LOCATED IN A WATER SUPPLY PROTECTION DISTRICT. Q z 3 i J � � � i � a U a U �, w � VICINITY MAP � � � � Qw a m SCALE 1�� : z000� � Q = � @ � L N � � C U a/ '� �, @ OWNER : p � > o � ALBEMARLE COUNTY SCHOOL BOARD � � c� � 401 MCINTIRE RD � � � � a � � � O o � CHARLOTTESVILLE, VA 22902 � � o � CONTACT: JOE LETTERI SIGNATURE PANEL: = m �� 0 APPROVAL DATE a � _ TELEPHONE : (434) 975-9340 DEPARTMENTOFCOMMUNITYDEVELOPMENT O � a o PLANNING &ZONING � � � � FAX : (434} 975-9341 J � 3 0 ENGINEERING � w o � J � a � x INSPECTIONS U Q o L � � ARCHITECTURAL REVIEW BOARD � w a� EN G I N E E R 0 F R E CO R D . DEPARTMENT OF FIRE AND RESCUE 7 a � @ L U N TI M M 0 N S G ROU P ALBEMARLE COUNTY SERVICE AUTHORITY O n o � « 3 VIRGINIA DEPARTMENT OF TRANSPORTATION � �' N 608 PRESTON AVE. SUITE Z00, N � HEALTH DEPARTMENT � � CHARLOTTESVILLE, VA 22903 � @ � � m � _ � � CONTACT: JONATHAN SHOWALTER, P. E. ,oBNo 00 TELEPHONE : 434-327- 1688 44694.005 @ N � _ EMAIL: JONATHAN .SHOWALTER@TIMMONS.COM SHEETNO. ao C0.� c E F _ GENERALNOTES w ,`�\.:\L7'H ���, 1. ALL MATERIALS AND CONSTRUCTION METHODS SHALL BE IN ACCORDANCE WITH CURRENT VIRGINIA DEPARTMENT OF ALBEMARLE COUNTY STORMWATER MANAGEMENT NOTES �' TRANSPORTATION'S SPECIFICATIONS AND STANDARDS. o o �,` � �""' �� 1. ALL DAMS AND CONSTRUCTED FILL TO BE WITHIN 95/o OF MAXIMUM DRY DENSITY AND 2/o OF OPTIMUM MOISTURE CONTENT. S f"� G�� 2. PRIOR TO ANY CONSTRUCTION, THE CONTRACTOR SHALL CONSULT THE ENGINEER AND VERIFY THE APPROVAL OF THE PLANS ALL FILL MATERIAL TO BE APPROVED BY A GEOTECHNICAL ENGINEER. A GEOTECHNICAL ENGINEER IS TO BE PRESENT DURING � ',-��r^�'� � BY ALL FEDERAL, STATE AND LOCAL AGENCIES. CONSTRUCTION OF DAMS. " ,�� \TH��\1.SHUq'ALTCR y 3. LAND USE PERMITS (LUP-A) MUST BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION PRIOR TO BEGINNING 2. PIPE AND RISER JOINTS ARE TO BE WATERTIGHT WITHIN STORMWATER MANAGEMENT FACILITIES. I.r �:� Oa�1=U�-i 51 ANY CONSTRUCTION WITHIN THE EXISTING STATE MAINTAINED RIGHT OF WAY (INCLUDING ACCESS). 3. FOR TEMPORARY SEDIMENT TRAPS OR BASINS WHICH ARE TO BE CONVERTED TO PERMANENT STORMWATER MANAGEMENT 4 SAN TAORYL NE3 WATERLINES F TC, PRIOR TOOCONSOT UCTION TS OF CONNECTION OR PROPOSED WORK TO EXISTING CURBS, HEICOUNTYOEROSION CONTROL INS ECTOR.CE UNTIL THE SITE IS STABILIZED, AND PERMISSION HAS BEEN OBTAINED FROM ��Jr OS/10/2021 _�� 5. UPON DISCOVERY OF SOILS THAT ARE UNSUITABLE FOR FOUNDATIONS, SUBGRADES, OR OTHER ROADWAY CONSTRUCTION � �,g/,-> , 1.�"� PURPOSES, THE CONTRACTOR SHALL IMMEDIATELY CONTACT THE OWNER. THESE AREAS SHALL BE EXCAVATED BELOW PLAN BLASTING NOTES '+�;_��,�_, GRADE AS DIRECTED BY THE OWNER, BACKFILLED WITH SUITABLE MATERIAL AND COMPACTED IN ACCORDANCE WITH THE 1. BLASTING SHALL NOT BE PERMITTED ON THIS PROJECT. ���� CURRENT VERSION OF THE VDOT ROAD AND BRIDGE STANDARDS AND SPECIFICATIONS. 6. ALL STORM SEWER DESIGN AND CONSTRUCTION TO BE IN ACCORDANCE WITH VDOT I AND I LD-94 (D) 121.13. 7. ALL STORM SEWER PIPE SHALL BE REINFORCED TONGUE AND GROVE CONCRETE PIPE IN ACCORDANCE WITH ASTM-C-76. PIPE o 0 WITHIN THE RIGHT OF WAY SHALL BE MINIMUM CLASS III OR GREATER IN ACCORDANCE WITH CURRENT VDOT STANDARDS AND N � sPEciFic,nTioNs. SITE PLAN LEGEND a o 8. IF PRE-CAST UNITS ARE TO BE USED, VDOT SHALL BE NOTIFIED AND THE MANUFACTURER SHALL SUBMIT DRAWING DETAILS FOR � E REVIEW. CERTIFICATION AND VDOT STAMP WILL BE REQUIRED ON ALL UNITS. GRADING W v E 9. ALL CONCRETE SHALL BE A3-AE (AIR ENTRAINED 3,000 PSI), UNLESS OTHERWISE NOTED. 101 �^�- WATER TC = TOP OF CURB � � � 3 10. DESIGN CHANGES, SPECIFIED MATERIALS CHANGES AND/OR FIELD CHANGES FROM THE APPROVED PLANS NEED TO BE STORM PIPE TW= TOP OF WALL a i o 3 RESUBMITTED TO THE ENGINEER PRIOR TO PROCEEDING WITH THE WORK. A LETTER OF EXPLANATION SHALL ACCOMPANY THE BW= BOTTOM OF WALL � p � ,^� REVISED PLANS AND/OR THE DRAINAGE CALCULATIONS, WHICH MUST BE SUBMITTED AND APPROVED BY THE ENGINEER. 100 100 STORM MANHOLE TS = TOP OF STAIRS ¢ � u � z 11. CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN ON PLANS IN AREAS OF � BS = BOTTOM OF STAIRS w .�, -'^ O CONSTRUCTION PRIOR TO STARTING WORK. CONTACT ENGINEER IMMEDIATELY IF LOCATION OR ELEVATION IS DIFFERENT FROM DROP INLET& STRUCTURE N0. FC = FACE OF CURB � � � "' a v THAT SHOWN ON PLAN. IF THERE APPEARS TO BE A CONFLICT, AND/OR UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THIS CURB EP = EDGE OF PAVEMENT � u' p; � � PLAN, CALL MISS UTILITY OF CENTRAL VIRGINIA AT 1-800-552-7001. THE OWNER SHALL BE RESPONSIBLE FOR THE RELOCATION EX. = EXISTING 3 p N x � OF ANY UTILITY WITHIN EXISTING AND/OR PROPOSED RIGHT-OF-WAY REQUIRED BY THE DEVELOPMENT. � CURB& GUTTER PROP. = PROPOSED � � v � w � � � � LIMITS OF DISTURBANCE � a � � � 12. THE INSTALLATION OF SEWER, WATER, AND GAS MAINS (INCLUDING SERVICE LATERALS AND SLEEVES) SHALL BE COMPLETED APPROX. = APPROXIMATELY � = c ry z PRIOR TO THE PLACEMENT OF AGGREGATE BASE COURSE. X FENCE = v a � O 13. ALBEMARLE COUNTY APPROVAL OF CONSTRUCTION PLANS DOES NOT PRECLUDE THE RIGHT TO REQUIRE ADDITIONAL ~ � � � FACILITIES AS DEEMED NECESSARY . XXX MAJOR CONTOUR � a' w 14. A PRIME COAT SEAL BETWEEN THE AGGREGATE BASE AND BITUMINOUS CONCRETE WILL BE REQUIRED AT THE RATE OF 0.30 XXX MINOR CONTOUR a � � GALLONS PER SQUARE YARD (REC-250 PRIME COAT) PER VDOT STANDARDS AND SPECIFICATIONS. m � 15. THE SCHEDULING OF AGGREGATE BASE INSTALLATION AND SUBSEQUENT PAVING ACTIVITIES SHALL ACCOMMODATE FORECAST o w f TC 725.94 pROPOSED SPOT ELEVATION `D � WEATHER CONDITIONS PER SECTION 315 OF THE ROAD AND BRIDGE SPECIFICATIONS. 16. THE OWNERS REPRESENTATIVE SHALL HAVE APPROVED THE AGGREGATE BASE COURSE(S) FOR DEPTH, TEMPLATE AND Q PARKING COUNT PERFORMED THE REQUIRED FIELD INSPECTION (PROOF ROLL) PRIOR TO PLACEMENT OF ANY SURFACE COURSE(S). CONTACT � THE OWNER FOR INSPECTION FOR THE AGGREGATE BASE COURSE(S) 48 HOURS PRIOR TO APPLICATION OF THE SURFACE o COURSE(S). _ 17. A GEOTECHNICAL ENGINEER IS TO ASCERTAIN CAUSE AND CERTIFY RECOMMENDED METHOD OF REPAIR FOR ALL PAVEMENT � � STRUCTURAL FAILURES PRIOR TO STATE ACCEPTANCE. � � 18. ALL VEGETATION AND ORGANIC MATERIAL MATERIAL IS TO BE REMOVED FROM THE PROPOSED PAVEMENT LIMITS PRIOR TO F CONDITIONING OF THE SUBGRADE. p 19. CERTIFICATION AND SOURCE OF MATERIALS ARE TO BE SUBMITTED TO THE OWNER FOR ALL MATERIALS AND BE IN � ACCORDANCE WITH THE ROAD AND BRIDGE SPECIFICATIONS, AND ROAD AND BRIDGE STANDARDS. = Q 20. ALL APPROACH GUTTERS TO SAG INLETS SHALL MAINTAIN A MINIMUM SLOPE OF 0.004 ft./ft. Q 0 21. ALL NEW HANDICAP ACCESSIBLE REQUIREMENTS ON-SITE AND WITHIN ALL NEW STRUCTURES SHALL COMPLY WITH THE 2009 z UNIFORM STATEWIDE BUILDING CODE, 2009 VIRGINIA CONSTRUCTION CODE, 2010 ADA STANDARDS FOR ACCESSIBLE DESIGN � AND ICC/ANSI A117.1-03. tn DATE 22. REFER TO SHEET L1.0 FOR ALL LANDSCAPING GENERAL NOTES. � 23. VISIBILITY OF ALL MECHANICAL EQUIPMENT FROM THE ENTRANCE CORRIDOR SHALL BE ELIMINATED. o OS/10/2021 24. ALL WATER LINES, SEWER LINES, AND FIRE LINES FROM THE MAIN TO THE STRUCTURE MUST HAVE A VISUAL INSPECTION r DRAWN BY PERFORMED BY THE BUILDING DEPARTMENT. 25. ALL ROOFDRAINS SHALL DISCHARGE IN A MANNER NOT TO CAUSE A PUBLIC NUISANCE AND NOT OVER SIDEWALKS. VT 26. BUILDING OR STRUCTURES BUILT BEFORE JANUARY 1, 1985 MUST HAVE AN ASBESTOS SURVEY PERFORMED IN ORDER TO APPLY FOR A PERMIT. ASBESTOS REMOVAL PERMITS ARE REQUIRED IF POSITIVE FOR SUCH. CONTACT VDOLI FOR ADDITIONAL • DESIGNED BY REQUIREMENTS AND PERMITS FOR DEMOLITION PROJECTS. • AM 27. BUILDING INSPECTIONS MUST VERIFY PROPER ABANDONMENT OF SITE UTILITIES BEFORE CONCEALMENT. GENERAL CONSTRUCTION NOTES FOR EROSION AND • CHECKED BY SEDIMENT CONTROL : • J5 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUCTION CONFERENCE, ONE SCALE 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 • AS SHOWN 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 O 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. O Q a 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. �/ z � 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF-PRODUCING LL ,� ; 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. � , N 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE � � s OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS. 3 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. J � a 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. O � 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL-TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF U U T 7:OOAM TO 9:OOPM. J `° 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT MAINTAINS LATERAL SUPPORT, OR ORDER � � � � TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND STRUCTURES/IMPROVEMENTS, AND � � 3 DAMAGE TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. Q W J a 16. THE OWNER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER J m Q � MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF a � THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. � ' w � 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE U � MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN Q � 0 a MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS O � Q .__ TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. � 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE � z s LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF, INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE � J Q � APPLIED AT 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT Q � � a 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY � � " � � o BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNTYU � a� EROSION CONTROL INSPECTOR. / �1 (n �' t9 � z 19. MAINTENANCE: ALL MEASURES SHALL BE INSPECTED WEEKLY AND AFTER EACH RAINFALL EVENT. ANY DAMAGE OR CLOGGING V � U O a � TO STRUCTURAL MEASURES SHALL BE REPAIRED IMMEDIATELY. SILT TRAPS SHALL BE CLEANED WHEN 50% OF THE WET = J z � � STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS SHALL BE RESEEDED WHEN NECESSARY TO ACHIEVE A ~ GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH COLLECT SEDIMENT TO HALF THEIR HEIGHT MUST BE a � � CLEANED AND REPAIRED IMMEDIATELY. O � a o 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS OF FINAL SITE z o � STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL � O � 3 INSPECTOR. � U z N ALBEMARLE COUNTY ENGINEERING GENERAL CONSTRUCTION NOTES w � � � 1. PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT OF WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, U a o £ A PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (VDOT). THIS PLAN AS DRAWN MAY NOT H� w � o ACCURATELY REFLECT THE REQUIREMENTS OF THE PERMIT. WHERE ANY DISCREPANCIES OCCUR THE REQUIREMENTS OF THE � �p g� PERMIT SHALL GOVERN. Q � � 2. ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF VDOT. z ; @ 3. EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION CONTROL O x � PLAN AND MUST 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 � @ o 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. � m 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. � a 9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION �oe rvo. N o �, ._ 44694.005 @ ' INDU TRY (29 FR PART 1926). � � � � SHEET N0. @ o a« CI.O � � � _ �4„ 2„ R w CONC CURB AND GUTTER CLASS 3A, �`��"���H ���' �. CONCRETE BUMPER BLOCK � ° a ° (fc=3,000 PSI) CONCRETE ,�.`���-� ��P�, ANCHOR WITH 5/8" REBAR j 6�� 2.0" BITUMINOUS CONCRETE SURFACE COURSE - SM-9.5A ,'�. �-1..�....��s � IMBEDDED 24" IN GROUND HANDICAP SIGN \/ 8 a �^.�� —� (PLACED IN SWGLE LIFT) " ,_�� \TH��\1.SHUq'ALTCR y LOCATION (VAN) � a a a I.r \:, Oa11=U�-151 HANDICAP SIGN �g�� � a a ° . a 4"TYPE 21B AGGREGATE BASE COURSE �LOCATION (TYP.) j a a q� a � a ��� o v o v �.p OS/1OIZO21 �,� — — COMPACTED � ° ° � � � �j -=-� 0 0 o SUBGRADE �� � � � a � � �� �� � � � ��� . � a'� VA��VA��VA��VA��VA��VA��VA��VA��\�. COMPACTED SUBGRADE ���5/�> t'``��• a . a� �a �/A/A/A/A/A/A/A/A/. �,.._ '��A l EOP FACE OF � � aa a a "'�HN�i CURB ` PAINTED r � o CONTINUE 21B STONE PER 2% M'4X. 18� 18� 4" MIN. o � � BASE FROM ADJACENT DENOTES LIGHT DUTY ASPHALT PAVEMENT ON PLANS m �4„ VDOT 4" L � � � o � v PAVEMENT SECTION � g SPEC. PAINTED ,� �� �� �� ,� �� �� �� �� �� �� �� �� UNDERCURB r`�v � STRIPE 6" 6" 2'-0" (TYPICAL) � E 8' 5' 8 8 8 ��= ai E TYPICAL vary VDOT STANDARD CG-6 CURB & GUTTER � � � 3 ACCESSIBLE ACCESSIBLE LIGHT DUTY ASPHALT PAVEMENT SECTION ¢ LL Y 3 No Scale o LL � ^ HANDICAP SPACES REGULAR SPACE No Scale w o � -+ � � U m Z R-�a'� CONTROL JOINT SPACED � � o a, O 4 AT WIDTH OF WALK (MAXIMUM) � v�i � `" � TYPICAL PARKING SPACE DETAILS TOPOFCURB � R=z° = s? ' `• � � _ � � No Scale :�� p, a 3 p ,� x �n EXPANSION JOINT AT MAX OF 30', WITH ¢ � a w \��\��\ a /��? "` ' PREMOLDED EXPANSION FILLER o Q � � � \/���/���/ � s" _ � , � o SIGNAGE NOTES ������ e� ^� � ~ o a' > 1. ALL SIGNING AND PAVEMENT MARKING SHALL BE IN ACCORDANCE WITH THE MOST CURRENT EDITION OF �//��//�� SURFACE � � � EACH OF THE FOLLOWING AND ANY REVISION THERETO: 18 �//�//� ed a � BASE CONC. WALK .�o � B. T'HE V RGINIA SUPPLEMENT TO THOE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES. \/�\\/�\\/ �a. C. THE VIRGINIA DEPARTMENT OF TRANSPORTATION ROAD AND BRIDGE SPECIFICATIONS. �/��/�� ' 9 a � � D. THE 2000 1NTERNATIONAL FIRE CODE. \�j\�j� a a � �" `4 � ; c- °� .�q. . a '�a dg• � VDOT A-3 CONCRETE ° ' . , a ' f a ' ` � ' ' a 2. SIGN LOCATIONS ARE APPROXIMATE AND ARE TO BE MODIFIED IN THE FIELD TO AVOID CONFLICT WITH � ' � ` " � � ` ' a � � " ° �` °' � _ ABOVEGROUND UTILITIES OR OTHER CONSTRUCTIONS, AND TO COMPLY WITH STANDARDS REFERENCED IN NOTE 1 �;��,� SUBBASE� . . o 0 0 � � ��� � � � � � � � � � � � � � � � � � � � � � � o 3. ALL SIGNS AND PAVEMENT MARKINGS ARE TO BE FURNISHED AND INSTALLED BY THE CONTRACTOR. ALL SIGNS TO � /\/\/\/\/\/\/\/\/\/\/\/\/\/�\/� /�\/�\/�\/\/\/\ CONTINUE 21 B STONE BASE � �w BE FURNISHED AND INSTALLED WITH STANDARD U POST GALVANIZED BY THE CONTRACTOR. FROM ADJACENT PAVEMENT COMPACTED SUBGRADE 4"21-B STONE w � SECTION UNDER CURB U 0 ¢ SOLID WHITE LINE 24�� o ��TYP'� VDOT STANDARD CG2 CURB CONCRETE SIDEWALK JOINT DETAIL � �ATE STOP ' No Scale No Scale � OS/10/2021 0 VARIABLE WIDTH' r DRAWN BY � 12 � EXISTING PAVEMENT PROPOSED PAVEMENT MAX. CROSS SLOPE 2% �Typ,� r NON-SLIP BROOM FINISH yT STD. � R1-1 > _ STOP BAR DETAIL NOTE: STOP SIGNS TO BE 30"WITH � SAWCUT THROUGH � MATCH EX. CROSS jj��������� , , = a a /\ /� \ • DESIGNED BY EX. SURFACE '� � � � �j SLOPE UNLESS OTHERWISE �������� � � o ��\� • NO SCALE HIGH INTENSITY SHEETING X COURSE w SPECIFIED ON PLANS �� ������ � , ���� � CHe��o sv w & REMOVE V� � � �� PAVEMENT �/ � �� STRIPING & SIGNAGE NOTES & DETAILS I suR AOCED � 2' MIN. 4" 3,000 PSI AIR-ENTRAINED No Scale _ CONCRETE J5 2"' COURSE COMPACTED SUBGRADE 4"TYPE 21B STONE • SCALE cc-�z Nore:cornaoNeNrs or cuRe RnMPs coNs�sT or THE Fo��ow�n,c: EXISTING NOTE: SIDEWALKS SHALL BE CONSTRUCTED IN � AS SHOWN �voRnuuc ceMeNr sioewn�H ioePT� ,N �Nc�es,naen �N sounae rneos� PAVEMENT � GENERAL NOTES� oERBc ABLE WA�RNRNC `sueFncERCAaca w souaaE vEAR�v ACCORDANCE WITH VDOT STANDARDS. 1. iHE DEiECTPBLE WARNING SHALL BE PROVIDED BY TRUNCATED OOMES. EACH OF THE A90VE ITEMS IS A SEPAF2ATE PAY ITE�A AND SHOULD ' � • 2. UE'ECIABLE WARNING SHALL BE FROM THE MATERI.q�S APPROVEO L15T FOR gE SVMMARIjED FOR EACH CURB CUT RAMP. �. .� a'�' � ' � �EIECTABLE wARNING SUFACES. PRODUCTS NOT USTED SHALL MEET SIDEwALK RnMP 12�1 MAx MILL EX. , ° � � THE REOUIREMENTS OF THE SPECIAL PqOViSiON �OR CG-12 DETECTqBLE 48:t MAX SURFACE COURSE • WARNING SURFACE AND SHALL BE SU9MIiTED i0 THE STANDMOS !WO SPECIAL DESCN SECiION FOR PPPROVAL. \ BASE COURSE 3. SLOPWG SIDES OF CURB RAMP MAY BE POURED MONOLITHICALLY WITN RAMP i EDGE OF PAVEMENT AGGR. BASE CONCRETE SIDEWALK PAVEMENT SECTION � FLOOR OR BY USING PERMISSIBLE CONSTRUCTION JOINT WITH REOl11RE0 BPRS. 4 0_ IF RAMP FLOOR IS PRECASi,HOLES MUSi BE PROVIOED FOR DOWEL BARS 50 � � THAT ADJOMMC PLARED SIDES CAN BE CAST IN PLACE APTER PLACEMENT OF �p:� MAx NO SCBIE PREcnsT Rae+P F�ooe. aeEcnsT coNCRere sHa�� ae c�nss a�a. TYPE A NOTE: PROPOSED PAVEMENT MUST TIE O o 5. REOUiRED BnRS nRE TO BE N0.5 x 8" PLACED �'CENTER TO LENTER nLONG � eorH sioEs oF THE RnMa F�ooR,Mio-oEaTn oF RnMP F�ooR. MiNiMUM PERPENDICULAR IN WITH EXISTING PAVEMENT CONCRETE COVER i%z�. a � � �� y a �; 6. CURB / CURB AND GUTTER SLOPE TRANSITIONS A�JACENT TO CURB RAMPS � i� v` � —Y � ARE MCWDED IN PAYMENT FOR CVR6 / Cl1RB AND GUTTER. , � i uT �JT � 5'MIN � ' - � z 'w Z CURB RAMPS ARE TO BE LOCATED AS SHpWN ON THE PL/+NS OR AS DIRECTED 9m 12'�� �` '—C � � a � ~ � B� iHE ENGINEER LHEV ARE 10 BE PROVI�ED Ai INiER5EC110N5 WHEREVER �p,� Mpg d'� '� , aa6 � � `- ,� A��EsS�a�E Ro�.E WITHIN THE RiGHT oF WAY oF A �,��WAY FA����rY � 5,������ PAVEMENT REPLACEMENT JOINT DETAIL i EP/ FC CROSSES A CURB REGARDLE55 OG WHEiHER SIDEWALK IS E%iSiMG,PROPOSED, I � //�� � � OR NONEXISTENi. iHEY MUST BE LOCAiEO WIiHIN PEDESTRIAN CRO$$WALKS TYPE 8 � AS SHOWN ON PLANS OR AS DIRECTED BY THE ENGINEER, AND SHOULD NOT NO SCBIEV / � Y BE LOCATED BEwND VEMCLE STOP UNES, EXiSTiNG LICHT POLES,FIRE m HYDRPNTS,DROP INLETS,ETC. ACCESSIBLE ROUTES PROVIDE A CONiINU0U5 PARALLEL �1�OR AS SHOWN ON PLAN Q � 3 UNOBSTRUCTED,STABLE,FIRM AND SUP RESISTANT PATH CONNECTING ALL �\��� ACCE5516LE ELEMENTS OF A FAGLITv THAT CNJ BE APPROACHED,ENTERED ,. �i ����, ���\�\"%/ � Z � nNo usEo ev aeoesTRir,�s. ,�ii`���;��%" \ �� WHEN NOTALONG SIDEWALK � o � ` ` METAL INSPECIION fRAME W/SOUD UD a 8. RAMPS MAY BE PLACED ON RADIAL OR TANGENTIAL SECTIONS PROVIDED THAT �� �' ` EXIST GRADE O rHE cuRe oPEwNG i5 P�nCED wiTHiN rHE un+iTS Or THE Ca055w�uK auD � —� (NEENAH R-1975 OR EQUIVALENTJ ( � U a iHAi iHE SLOPE AT THE CONNECTION OG TME CURB OPENING IS t2�MAX g s _ 1=11�1 `/ T PERPENDICULPR TO TNE CURB. 5.�,�µ �* *'y\ i I— I —I H_ IIl�1�Il� 3� CONCRETE COLLAR W m 9. TYPICAL CONCRETE SIDEWALK IS 4" THICN. WHEN THE ENTRANCE RADIICANNOT ' I��I ~ CRUSHED S70NE BEDDING � � � ACCOMMODATE THE TURNING REOUIREMENTS OF ANTICIPATED HEAVY TRUCK � _� '�"V I � iRnFFiC.REFER i0 STaN�n1eD CG-�3,COMMERpnL EN7RnNCE wEAVr q�MIN i I - I _ Q '^ N � HicHER iHnN v� 3 TRl1CK TRA�FiC1FOR CONCRETE DEPTH. � " '' � ,i�ar uF w�vEMENi 6" Ol CL£ANOUT W � n� 10. WHEN CURB RµtGS ARE USED IN CONJUNCTION WITH A SHqREO USE PATH, /+� M* ,SAME AS i0P OF CVRB m F♦ a THE MINIMl1M WIDTM SHALL BE THE WIDTH OF THE SHARED �5E PAr�_ CURB WIPE DOWN DETAIL � J Q c 11. WHEN ONL� ONE CURB RAMP 6 PROVi�E� FOR TWO CROSSMGS IDIAGONAU. TYPE C ^ NO SC8I2 a @ A a'x 9'LANDING AREA SHPLL BE PROVIDED i0 MANEUVER A WHEELCHAIR PARALLEL & PERPENDICULAR � i � y INTO THE CRDSSWALK WITNOUT COING INTO THE TRAVELWAY.THIS 4'H A' LANDING AREA MAY INCLUOE THE GUTTER PAN. - PLUG AT END � W � TRUNCATEO DOME �n � 12. ALL CASES WHERE CURB RMAPS �MERSECT A RPDIAL $EC7iON OF e OF UNE Q U Q @ t.6"-2.a�� CC r CURB AT ENTRANCES OR STREET CONNECTIONS THE DETECTPBLE � o � WARNING SURFACE SHALL HAVE A PACTORY RPDIUS OR BE RELD O O O O O O z � d -MODIFIED A$ RECOMMENDED BY iHE MANUFACTURER TO MATCH � � � �sphalt Pavement Restoration Detail for Open Cut Utility Installations O � � TnE BACK or CURB. � o 0 0 o O o 0 0 0 o O o - � Q - o 0 0 0 0 0 0 0 0 0 0 0 � � oz � � o O o O o 0 0 0 0 0 0 0 o O o �_ ,".i.l '_ & resrrT�ce Mi71. 5� rPscrt�c� s LANDWG RAMP + o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o ry �»r: Saw-cut existing pavement �.� J Q c � o o O o 0 o O o 0 0 0 0 0 0 o to the full depth of asphalt 7.5`total asphatl Q ��1 � o 0 0 0 0 0 0 0 0 0 0 0 0 0 o CLEANOUT DETAI L 17'min. 12`min. concrete pavement � � V/ °d � 50z-65Z OF BASE DiAMETER Asphal�Concre�e Surface Nlaterial� ' � p TOP DIAMETER � � O O O O O O O O O O O O o No Scale depth of equal to = W o � DErECrnB�E WARNING o � thedeplhofexisting U � �`n� AT BACK OF CURB I_ I 0.9"-1.4" I VARIABLE NLl WIDTH OF RAMP F�OOR _ I d5Ph2lI COOCfEIE, � Z see Note �z � BnSE DinrnE rER �6"min. Asphalt Conerete Base,Type BM-25.OA TRUNCATED DOME PA� ��M�Ts DETECTABLE WARNING DETECTABLE WARNING whicheveris9reater U O a � 1.5"min. J z � � INSTALLED ON A RADIUS DETAIL Sub-basecoursedepth = �p �,� DETAIL 10"min. A99regate Base Material,Type I shall be 10"or equal to � � o Size No.21 A or 21 B �VD❑T SaEaFiCnrioN depth of existing sub-6ase, d -o c CG- 12 DETECTABLE WARNING SURFACE RE�EREN�E greater O � � N whi�he�e�i5 Roao allo eR�oce srnNoneos a o sHEET i ov s Re��s�oN �are �GENERAL NOTES) ,os " Z p � 203.05 0�/15 VIRGINIA DEPARTMENT OF TRANSPORTATION 502 � � � � Horizontal and vertical suAaces C9 �c 6'Bench "Bench shall be tacked with RG250 li uid � � � 3 9 y Min. M�^� asphalt at a rate of 0.1 gallon per � U p � NOTES: SY,or as determfned by the J � a district administrator's designee / ` � � � ' Asphalt Concrete Surface Material: v t SM-9.5A for ADT<1Q000 Select Material Type I with minimum C8R=30 a o " � � SM-9.5D for ADT>10,000 �� W a Y Class I backfill material in accordance � m o �3 The district administrator's designee shall determine the wi�h Section 302 of the Road and Bridge Q � �' restoration requiremeNs for o�her pavement rypes. Specifications 7 y '� ` � N " Trench width and pipe bedding shall 6e in No.26 or 27 aggregate pipe bedding in � o accordance with VDOT Std.PB-1 accordance with Sections 205&302 of O d � the Road and Bridge Specificafions `� � d �, ��"` 12 inches minimum beyond the edge of the trench .. � m o on longitudinal open cuts,or 25 feet minimum beyond � " the lrench centerline on perpendicular open cuts,or as � determined by the district administrator's designee. � @ o - Date: August 27, 2014 — � � .. � t6 a U �OB NO. N O �, ._ 44694.005 @ ' �, _ � � SHEET N0. @ o a« Cl.l � � � _ i � � � w 1 I I / i � I � I ._� i vrix�icrlr-rn�. ��.ncv�� uv;-�� �.urir�� i �v uivvo� i r. �.;\L7'fl U � � � I kECT AND RESPONSIBLE CHAkGE OF JOSEPH C. MEDLEY -�� �(� � � I /520 I � � � I � OM AN ACTUAL GROUND SURVEY MADE UNDER MY S`���"'' �'f'C �� � � � � I � I IPERVISION; THAT THE ORIGWAL DATA WAS OBTAI�'" y ,�,�. �,,,,,,,�,� � � � � � � I � I � I THE FOLLOWING DATES' APRIL 9 & 13, 2021. THT" C, Y � I ,�� \TH��\1.SHUq'ALTCR � � � � � I � � �, SE-MAP AND DIGITAL GEOSPATIAL DATA INCLI.' � � / � I I � I � � � TADATA MEETS MINIMUM ACCURACY STANDA' I.r \:, Oa�1=U�-i_ I � � i �� � sreevs�oaesnnaNaceo � �� i � ".p OS/10/2021 �,� \ 1 / � (TYP.J � I � 1 rj �j(i / `s � � I � � r%: .S �.���. �� �/ '\ I � I � � I� � �� �/r>�\l 1�. � � \ \ � — � I� � I � I \\ I � I I � � � II I I � I I I� �� � \ HORIZON� rn u � � � � � � iRGINIA STA i t �wu. sw i rf�uivt. vt��e�i�;a� u,v�� ,.^'„ � h 1 I � � ` 4SED ON NAVD88. DATUM ESTABLISHED THROUGH a o Q � I\� (PART OFJ TMP 91-2 \�\ � I � � I � � FTWORK RTK GPS (LEICA SmartNET) OBSERVATIONS. v E I THE COUNTY SCHOOL BOARD OF I I = '' � I � ALBEMARLE COUNTY, VIRGINIA � � I I I \ TOPOCRAPHIC DATA DEPICTED BASED ON A CURR' F � � 3 � � � DB. 9740, PG. 559 �� I � � I I � �� I - ELD SURUEYBY THIS FIRM, COMPLETED APRIL � o LL o ^ � � I ZONED: R15 � GRASS/ � I � I I � I � � � w O � ,� � I � � FIELD AREA I � � � � I THIS lS NOT A BOUNDARY SURVEY,•PURPOSF( a � u m z � � � � I � I � � I � �� � �� I JRVEY lS TO DEPICT EXISTING CONDl1/ONS A��' � .J, o`^ O I � I � . � � I I � � � i � �POGRAPHY WITH NO BOUNDARY RES � v�i � � � � � � `s � / � � � � I I � I � R ANAL YSIS IMPL IED. z W °+�' � � 1 �2 \ � I � � � � v I � � I I � � � 3 p N x � 1 \ �� �\ I � I I � I � �� � � MISS UTIL/TY TICKET lNITIArED, TICKf o � v � p � � � � � � � � I I � I � 1 U9502483-008. NO UNDERGROUND U l i", , ,.. "., � = v ry z I � � � � � � � � � I � I � I � �YOND INFORMATION PROVIDED VlA MISS UTILITY Hf = v a � O � � � � I I I I I � �EN CONDUCrED BY THIS FIRM. ~ c u' � � 1 / �\ � \ \ 1 / I � � � I I I �I I � o `� w � / I � � � I 1 � � � NO TITLEREPORT FURNISH� a � � � � - - - - - � \ � � � I I � � i � � � � I � � � � !HICH ARE NOT SHOWN H� o w APPROXIMATE L OCATION // � � � � � \ � 1\ I � �I i �I �I � 11 � �o � OF EXISTING PAVEO �/ � � � \ � � � � I � I PATH i5� �522� _ � _ � _ � � , � � � I I 1 . � � � � -523- - - � . _ � i � � � 1 I � � z � _ � _ \ . � / � I I I � I cn i � � � � � � sc,� 1 � \ � I I I I I � � � � /l � ♦ \ � � I � � I I � � � � � ' o � � �� WOOD BHRRIER� � � �s \ � � � I � � � I � � I 1 ' � � ^� 6"x 6"POST W/SINGLE RAIL �� y �'',p, \ � I / � I � � � 1 ( 1 11 I ' � CURB / l� � � \ � � � � � 1 I � � � � EP � ` � • \ � � i 1 � \ VVATCR '✓AL� O � � I REMOVE TREE I I � � I � � � �2"Pll�lE � F/RE HYDR,9N \ \ \ � \ RRMBF '� \ �\ 1 �I 1� 11 � � I � (1 (OEAD) Q STORMORAIN,vi�c j,�u, � � � � � \ � � � � � � � I � 1 � SDlNLE7W/Gi � STORMINLETW/GR.4/t iy � ♦ \ ;� � � � � � � � T0��77G.9' � ROOFORAIN/DOWN-SPi Z Q � � � I � � / A � � II SOCURBI;VLETW/NIHD � ( �' r �� " � U 1 1 � � I "� � REMOVE SECTION CP REMFORCEDCONCRE7E Q 0 (125TANOr4ROSPACESIL'�a� `�`'�� IREMOVE � \ \ \ \� 1 1 � 1 � /,V OFCURBBETU/EEN ✓C POLY-VINYLCHLORIOH'� z N rOP=s78.5s `'� � � 'C HIGH-DENS/7YPOLV-ETli O INV. OUT=514.87'95"HOPE � `='+�� \� \� � I \ � � \� !\� �\\� SAWCUTS Q SANITARYMANHOLE � DATE � � , \ GUARDRAIL AS 7s,s�ey � � � � � � 1 � �n � �c uGHTPOLE > � , NECESSARY FOR 'v�,�s�'f'�F � � � � I � \ � � � � � OS/10/2021 socuReirvcErwrnoHo ,asr CONSTRUCTION + ��<",S, 'S' � � � ` _ _ _ � � � � \ � UTIU71'VAUt; o TOP=520 10' � �}� \ , "9i� � - _ _ _ _ ' --�%� -`��_ / / / \ - SANlTi1F r DRAWN BY NV OUT=575.99'15'HOPE � I ` - , - - - a=_�'— - - .a - , . _ \ ��sP. ,`. � _ - - ===f'�5" R�p - - - - - � � � �` — w — warEiz� VT � � _ ` LIGHTON2'D � � - UGP�_ �d���%'� _ .a�� � � — UGP— — - UNDERi I I CONC. BASE `i� � � ��� — —UGP— — — _�_��� � _ _ � ` �-I- • DESIGNED BY II TOP=522_8' � �r � � � ._ I � � ' � � � ` � � ' --X— FENCE-LiNC • AM iu��=��s.4s� II ° � \ 1 Pi i - � I I 1 i.3.sa•iS��HOPe�N) �� � � '� � � � EP � u���� i I 1 �s.se�is^HnPe(E� I I ������� � A � � � � I � I l � i � � � �� � � � I I �'�/// 15 \ , C&G � �U _ _ _ \ � T p_gR32 CErW/ HD , I I I � � \I EDGEOFPAVEMEhTiP CHECKED BY � UGP— � —�UGP— � � l V 1N=51 22'15" CP � � � � � . �/(/ — — � \ �` UGHT ON2Ckl l V. OUT= 14.07'1 "RCP \ � 3� • • SCALE /� � � � CURB CONC. BASF; � I I I i ��E� I� CONIFEROUS TREE // �\ � Ep 1 TOP=524.7' � a � \ `i DECIDU(� �/ a � No �✓L-- - - - �� \ . SAWCUT CURB � I I I � • 1"=20' ��/ , �,_ _ — — —w7-'�\— — — —w� � � �� REMOVE SECTION � - AT NEAREST JOINT (TYP.) \� � � �� � � • � /J � ASPHAL7 �N � �X� OF CURB BETWEEN : �� � � � �l� WATERLINEPERGISJ � \ \\ \� �_ SAWCUTS �\��� l 61'DE � • �l / MAPPING FROM ACSA (10 STANOARD SPACES SNOWN+ >�yC AT WEST, NOT SHOWN) /���� _ � SPIKE SET � ��\ � � � � 3 �� � (REC'D04-09-2>J \\ �� � � �,25.53' � (ssPacEs) 8"PINE ^� � I I a LEGEND: //� / \�\ \ ' � \ Q � \��\ �I � \�\ _ � �/ � � �� � I � REMOVE ASPHALT // Q � \ � � I \ � \ 'l\ 12"PINE� � � 'T�IR / � �,r-�;,:,,,; i �G EP � � ,�i F � � �,,�{ � � I � :;.53'�IS"HOPE /� I / •• /�. 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(REC'D 04-09-21 l ry6" � ;�u�,c:,c uv�c, � z i ll 3/�i� &CHEEKWALL - - -595— � � �n � 1 "' � ss w/Rai[ � I CEOAld\� � � � ���,=y��b�, AND CURB TO BE CUT AT � N l �i ----------------------o-_---_--L_ -� _ _--514 --- \ � \\\ ' � �, � - \ ` / C w-Ltpvs _ I � � -s21.o6's' NEARESTJOINT) � � m � � — — — — 7 ONC i _,. � \ \ (W=0.6 'l _ _ � N � � 1 /NV IN ir-�.,., n- c - �,i�i 15 _ Y/y � I � _ ^ EP ) � � � a ai __-___-_- _ _ _ __ .i. _—___—_ L— __________________________� r � s-- -- _---__- _ _ � v CURB " 0 %�--- 18"RCP - - - 1� � �\� �� � � i ';ANOPY - - �in�v��r=szs zs� ' �s2�_ _ r � \ \ I n � �Ig„I�A�� ( � � Q 'o. MHD / ` � .♦ ( � I�,• CONC.SWK(R,4MPW/R4/L) � �hl.�s � � � �� �I \ ' J G t6 `,Y7.29' � COIJC. 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PLUMBER BEFORE BEGINNING 11 EA.STAIR= � ~ 3 �\ >> rREaoS, DEMOLITION OR CONSTRUCTION � � � _ I I 12 RISERS W/RAIL � O ~ � � �� & CHEEK WALL � � 0 � O 11 = o � 11 U z a 11 ( n � O �' z SO lNLE7 W/GRATE �1 r / U a � TOP-�'>33R' VI � J � � � �nni niir-sna ��-a^r..^o �1 F m � �o O a z � � � _ � � H a o Jz � � � � � � Jo (n �' 3 o � X Z �, � 2 w w o � J � a U � � � w � � Q o � � w d L C� 0 3 J a m z a � � N Y 3 @ N O d O N « 3 N y SCALE 1"=20' � � o E � � c U � 0 20' 40' — � m � s � � � � � a ]OB NO. y o �, ._ 44694.005 @ ' �, _ � � SHEET N0. @ o a« C2.� c E F _ w EROSION AND SEDIMENT CONTROL NARRATIVE MINIMUM STANDARDS: GENERAL EROSION AND SEDIMENT CONTROL NOTES: :��` ����H �'� o� .,t�.�-, �"�-P PRb]ECT DESCR[PTION AN EROSION AND SEDIMENT CONTROL PROGRAM ADOPTED BY A DISTRICT OR LOCALIN MUST BE CONSISTENT WITH ES-1: UNLESS OTHERWISE ]NDICATED, CONSTRUCT AND MAINTAIN ALL VEGETATNE AND STRUCTURAL EROSION AND =r � C� ->>1..�....t��s 2 THIS PROJECT ]NCLUDES THE ADDITION OF A MODULAR CLASSROOM TO MONT[CELLO HIGH SCHOOL, SITE THE FOLLOWWG CRITERIA, TECHNIQUES AND METHODS: SEDIMENT CONTROL PRACT[CES ACCORDING TO MINIMUM STANDARDS AND SPECIF[CAT[ONS 6F THE LATEST " ,�� \TH��\1.SHUq'ALTCR y [MPROVEMENTS, AND ASSOCIATED UTILITIES & LANDSCAPWG. THE LIMITS OF DISTURBANCE ]S 0.50 ACRES. MS-1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SO[L STABILIZAT[ON SHALL BE EROS[ON AND SED[MENT CONTROL REGULATIONS. I.r �:� Oa�1=U�-i 51 ADJACENT PROPERTY APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN �.p OS/10/2021 �,� THESE IMPROVEMENTS ARE BEING MADE WITHIN THE PROPERTY BOUNDARY. THE PROPERTY IS BOUNDED BY MILL CREEK DORMANT FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE ES-2: THE CONTROLLING EROSION AND SEDIMENT CONTROL AUTHORITY WILL MAKE A CONTINUING REVIEW AND �j _� DRNE TO THE SOUTH. PIEDMONT VIRGINIA COMMUNITY COLLEGE TO THE NORTH. RES[DENTIAL APARTMENTS TO THE TO BE LEFT DORMANT FDR MORE THAN ONE YEAR. EVALUATION OF THE METHODS AND EFFECT[VENESS OF THE EROSION CONTROL PLAN. r/�� , �,�' EAST AND COMMERCIAL AND RESIDENTIAL PROPERTIES TO THE WEST. M$-2. DURING CONSTRUCTION OF THE PRO]ECT, SOIL STOCKPILES AND BORROW AREAS SHALL BE $TABILIZED OR � S/'+s...'��� �� PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY ES-3: PLACE ALL EROSION AND SEDIMENT CONTROL MEASURES PR[OR TO OR AS THE FIRST STEP IN CLEARING, GRADING, ��N�i EXISTING SITE CONDITIONS PROTECT[ON AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS OR LAND DISTURBANCE. TNE SITE IS CURRENTLY A FLAT FIELD AREA. AND 50[L INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. MS-3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE ES-4: MAINTAIN A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN ON THE S[TE AT ALL TIMES. o E OFF-SITE AREAS PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A N o NO OFF-SITE AREAS WILL BE D[STURBED AS A PART OF TH[S PROJECT. GROUND COVER IS ACHIEVED THAT IS UN[FORM, MATURE ENOUGH TO SURVIVE AND WILL ]NHIBIT EROSION. ES-5: PR[OR TO COMMENCWG LAND-DISTURBING ACTIV[TIES IN AREAS OTHER THAN INDICATED ON THESE PLANS a o MS-4. SEDIMENT BASINS AND TRAPS, PERIMETER D[KES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO (INCLUDING, BUT NOT L[MITED T0, OFFSITE BORROW OR WASTE AREA), SUBMIT A SUPPLEMENTARY EROSION > E CRITICAL EROSION AREAS TRAP SED[MENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND-DISTURBING ACTNITY AND SHALL BE CONTROL PLAN TO THE ARCHITECT/ENGINEER AND THE CONTROLLING EROSION AND SEDIMENT CONTROL AUTHORITY W v E NO CRITICAL EROSION AREA EXIST. MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. FOR REV[EW AND ACCEPTANCE. F � � 3 MS-5. STABIL[ZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND Q LL 3 EROSION AND SEDIMENT CONTROL MEASURES DNERSIONS IMMEDIATELY AFTER ]NSTALLATI6N. ES-6: PROVIDE ADD[TIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS o 0 � � UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES MS-6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DES[GNED AND CONSTRUCTED BASED UPON THE TOTAL DETERMINED BY THE RESPONSIBLE LAND DISTURBER. (MODIF[ED NOTE) Q W � � z SHALL 8E CQNSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPEC[FICATIONS OF THE DRAINAGE AREA T6 BE SERVED BY THE TRAP OR BASIN. w � -U; O CURRENT ADDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. THE MINIMUM STANDARDS OF A. TNE MINIMUM STORAGE CAPACITY OF A SED[MENT TRAP SIIALL BE 134 CUBIC YARDS PER ACRE QF ES-7: ALL DISTURBED AREAS SHALL DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING a � a ,�6ii a THE VE$CH SHALL BE ADHERED TO UNLE$S OTHERWI$E WAIVED OR APPROVED BY A VARIANCE BY LOCAL AUTHORITIE$ DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. LAND-DISTURBING ACTIVITIES AND DURING S[TE DEVELOPMENL c� u+ v � HAVING ]URISDICTION. B. SIJRFACE RUNOFF FROM D[STURBED AREAS THAT [S COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER � 0 N X � THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIN. THE MIN[MUM STORAGE ES-8: DURING DEWATERING OPERATIONS, PUMP WATER INTO AN APPROVED F[LTERING DEVICE. ¢� � v � w EROSION AND SEDIMENT CONTROL MAINTENANCE CAPACITY OF A SEDIMENT BASW SHALL 6E 134 CUB[C YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL o a � � � ALL ER65[ON AND SED[MENT CONTROL MEASURES SHALL BE MAINTAINED ]N ACCORDANCE WITH VESCH AND THE SYSTEM SHALL, AT A MINIMUM, MAINTA[N THE STRUCTURAL WTEGRITY OF THE BAS[N DUR[NG A 25-YEAR ES-9: INSPECT ALL EROSION CONTROL MEASURES DAILY AND AFTER EACH RUNOFF- PRODUCING RAINFALL EVENT. MAKE `^ v > � O CONSTRUCTION SEQUENCE, INCLUDING THE WSPECTION OF ALL MEASURES AFTER ALL RAW EVENTS. STORM OF 24-HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESP6ND ANY NECESSARY REPA[RS OR CLEANUP TO MAINTAIN THE EFFECTIVENE55 OF THE EROS[ON CONTROL DEVICES � � „ � TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EX[ST WHILE THE SEDIMENT BASIN IS IMMEDIATELY. � a' > STRUCTURAL PRACTICES: UTIL[ZED. v M � 1. TEMPORARY CONSTRUCTION ENTRANCE - 3.02 A TEMPORARY CONSTRUCTION ENTRANCE SHALL BE PROVIDED AT MS-7. CUT AND F[LL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROS[ON. SOILS INFORMATION: � � OJ J THE LOCATION INDICATED ON THE PLANS. IT IS IMPERATNE THAT THIS MEASURE BE MAINTAWED THROUGHOUT SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION � � CONSTRUCTION. ITS PURPOSE IS TO REDUCE THE AMOUNT OF MUD TRANSPORTED QNTO PAVED PUBLIC ROADS BY SHALL BE PROVI�ED WITH AD�ITIONAL SLOPE STAB[LIZING MEASURES UNTIL THE PRO6LEM IS C6RRECTED. 71B - RABUN CLAY LOAM, 2 TO 7 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, MOTOR VEHICLES OR RUNOFF. MS-8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN HYDROLOGIC SOIL GROUP: B �. SILT FENCE BARRIER - 3.05 SILT FENCE SEDIEMENT BARRIERS SHALL BE INSTALLED DOWNSLOPE OF AREAS WITH ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE. � MWIMAL GRADES TO FILTER SETTLEMENT LADEN RUNOFF FROM SHEET FLOW AS WD[CATED. ITS PRPOSE IS TO MS-9. WNENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTNER 71C - RABUN CLAY LOAM, 7 TO 15 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTNE FEATURES, WELL DRAINED, � PREVENT SEDIMENT FROM LEAVING THE SITE. PROTECT[ON SHALL BE PROVIDED. HYDROLOGIC SOIL GROUP: 6 � x 3. STORM DRAIN [NLET PROTECTION - 3.07 STONE FILTERS SHALL BE PLACED AT THE INLET OF ALL DRAINAGE MS-10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT � STRUCTURES AS ]NDICATED ON PLANS. ITS PURPOSE IS TO PREVENT SED[MENT FROM ENTERING THE STORM SEDIMENT-LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING F[LTERED OR 79B - MEADOWVILLE SILT LOAM, Z TO 7 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL p DRAINAGE SYSTEM PRIOR TO PERMANENT STABILIZATION. OTHERWISE TREATED TO REMOVE SEDIMENT. DRAWED, HYDROLOGIC SO[L GROUP: B °C x 4. DIVERSION DIKE - 3.09 A TEMPORARY RIDGE OF COMPACTED SOIL TO DIVERT WATER FROM A CERTAIN AREA. MS-11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ~ 5. TEMPORARY SEDIMENT BASIN - 3.14 A TEMPORARY DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE IS ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE 72C3 -RABUN CLAY 7 TO 15 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAWED, � TO BE USED TO DETAIN SEDIMENT-LADEN RUNOFF FROM DISTURBED AREAS LONG ENOUGH FOR THE MAJORITY OF INSTALLED W BOTH THE CONVEYANCE CHANNEL AND RECE[VING CHANNEL. HYDROLOGIC SOIL GROUP: B w � THE SEDIMENTTO SETTLE OUT. MS-12. WHEN WORK W A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TD MINIM[ZE U p 6. OUTLET PROTECTION - 3.18 STRUCTURALLY L[NED APRONS PLACED AT THE OUTLETS OF PIPES OR CHANNEL SECT[ON ENCROACHMENT, CONTROL $EDIMENT TRANSPORT AND $TABIL[ZE THE WORK AREA TO THE GREATEST EXTENT ¢ TO PREVENT SCOUR AND PROTECT THE OUTLETS STRUCTURE. POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATER[AL SHALL BE USED FOR THE CONSTRUCTION OF o 7. DUST CONTROL - 3.39 DUST CONTROL IS TO BE USED THROUGH THE S[TE IN AREAS SUBJECT TO SURFACE AND AIR CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES [F ARMORED BY in oATE MOVEMENT NONERQDIBLE COVER MATERIALS. � 8. TREE PROTECT[ON - 3.38 PROTECTION OF DESIRABLE TRESS FROM MECNANICAL AND OTFIER INJUSRY DURING LAND MS-13. WHEN A LIVE WATERCOURSE M115T BE CROSSED BY CONSTRUCTION VEH[CLES MORE THAN TWICE W ANY � OS/10/2021 DISTURBWG AND CONSTRUCTION ACTIVITY. SIX-MONTH PERIOD, A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATER[AL O DRAWN BY SHALL BE PROVIDED. VEGETATIVE PRACTICES: MS-14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE yT 9. TEMPORARY SEEDING - 3.31 ALL DENUDED AREAS WH[CH WILL BE LEFT DORMANT FOR MORE THAN 30 DAYS SHALL WATERCOURSES SHALL BE MET. BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETAT[ON [MMED[ATELY FOLLOW[NG GRADING OF THOSE MS-15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE • DESIGNED BY AREAS. SELECTION OF THE SEED MIXTURE SHALL DEPEND ON THE TIME OF YEAR ]T IS APPLIED. WATERCOURSE IS COMPLETED. • 10. PERMANENT SEEDING - 3.32 FOLLOWING GRADING ACTIVITIES, ESTABLISH PERENNIAL VEGETATIVE COVER BY MS-16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE F6LLOWING STANDARDS IN AM PLANTING SEED TO REDUCE EROS[ON, STABILIZE DISTURBED AREAS, AND ENHANCE NATURAL BEAUTY. ADDITIQN TO OTHER APPLICABLE CRITERIA: • CHECKED BY A. NO MORE THAN 500 L[NEAR FEET OF TRENCH MAY BE OPENED AT ONE T[ME. MANAGEMENT STRATEG[ES B. EXCAVATED MATERIAL SFIALL BE PLACED ON TFiE UPFiILL S[DE OF TRENCFIES. • J5 1. PR6VIDE SED[MENT TRAPPING MEASURES AS A FIRST STEP IN GRADING, SEED AND MULCH IMMEDIATELY C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED FOLLOWING [NSTALLATION. SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY • SCALE 2. PROVIDE TEMPORARY SEEDING OR OTHER STABILIZAT[ON IMMEDIATELY AFTER GRADING. AFFECT FLOWING STREAMS OR OFF-SITE PROPERTY. • AS SHOWN 3. [SOLATE TRENCHING FOR UTILITIES AND DRAINAGE FROM DOWNSTREAM CONVEYANCES IN ORDER TO MIN[MIZE D. MATERIAL USED FOR BACKF[LLING TRENCHES SHALL BE PROPERLY COMPACTED ]N ORDER TO MINIMIZE PERIMETER CONTROLS. EROSION AND PROMOTE STAB[LIZATION. • 4. ALL ER6S[ON AND SED[MENT CONTROL PRACTICES SHALL 6E MAWTAINED UNTIL THEY ARE NO LONGER REQU[RED E. RESTABILIZATION SHALL BE ACCOMPLISHED ]N ACCORDANCE WITH THESE REGULATIONS. TO COMPLY W[TH THE CONTRACT DOCUMENTS OR STATE LAW. F. APPLICABLE SAFETY REGULAT[ONS SHALL BE COMPL[ED WITH. � MS-17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL � PERMANENT STABILIZATION BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEH[CULAR TRACKING ONTO THE PAVED SURFACE. ALL NON-PAVED AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED W[TH PERMANENT SEEDWG IMMEDIATELY WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE SHALL BE C FOLLOWING FINISHED GRADING. SEEDING SHALL BE IN ACCORDANCE WITH STD. & SPEC. 3.32, PERMANENT SEEDING. CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY G SEED TYPE SHALL BE AS SPECIF[ED FOR "MINIMUM CARE LAWNS" AND "GENERAL SLOPES" IN THE HANDBOOK FOR SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASH[NG � O SLOPES LESS THAN 3:1. FOR SLOPES GREATER THAN 3:1, SEED TYPE SFiALL 6E AS SPECIFIED FOR "LOW MAINTENANCE SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REM6VED ]N THIS MANNER. THIS PROVISION SHALL APPLY o SLOPES" IN TABLE 3.32-D OF THE HANDBOOK. FOR MULCH (STRAW OR FIBER) SHALL BE USED ON ALL SEEDED TO WD[VIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND-DISTURBING ACTIV[TIES. ` SURFACES. IN ALL SEEDING OPERATIONS SEED, FERTILIZER AND LIME SHALL 6E APPL[ED PRIOR TO MULCHING. MS-18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER Q J a FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS � Z � ,�'-, SEQUENCE OF INSTALLATION OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL � Q � PHASE I AREAS RESULTING FROM THE D[SPOSITION OFTEMPORARY MEASURES SHALL BE PERMANENTLY STAB[L[ZED � a � ` 1. A PRE-CONSTRUCT[ON MEETING IS REQUIRED WITH ALBEMARLE COUNTY E&S INSPECTOR, CONTRACTOR, OWNER, TO PREVENT FURTHER EROSION AND SEDIMENTATION. � /1 > w � AND ENGINEER. THIS MEETING SHALL TAKE PLACE AT THE COMMUN[TY DEVELOPMENT OFF[CE. CLEARING L[MITS MS-19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL 6E PROTECTED FROM N 1 � „ MUST BE FLAGGED PRIOR TO THE MEETING WITH ONE (1) WEEK OF NOTICE. SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES W VOLUME, VELOCITY AND PEAK FLOW � � � s 2. WSTALL CONSTRUCTION ENTRANCE, TREE PROTECTION AND SAFETY FENCE. E&S MEASURES FOR MOBILE RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF Z4-HOUR DURATION W ACCORDANCE z � N CLASSROOMS REMOVAL AREAS DENOTED ON PLANS SHALL NOT BE INSTALLED UNTIL SCHOOL IS OUT OF SESS[ON WITFi TNE STANDARDS AND CRITERIA LISTED IN TF1E VIRGIN[A EROSION AND SEDIMENT CONTROL � � a FOR THE SUMMER QF 2021. NO WORK SHALL BEGIN IN THOSE AREAS UNTIL ALL ESC MEASURES IN THOSE AREAS HANDBOOK� CHAPTER 8 PAGES 20-24. ( , � (n a ARE WSTALLED. � w �J,J @ 3. AFTER ALL EROSION AND SEDIMENT CONTROL MEASURES ARE IN PLACE, SITE WORK CON BEGIN. � � � o 4. ROUGH GRADE PRO]ECT AREA. Q O � 5. SEED ALL DENUDED AREAS PER VESCH STANDARDS. Q w z = PHA5E I[ J Q J � 1. FINE GRADE PROJECT AREA. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN DAYS AFTER O s FINAL GRADE I$ ACHIEVED. � � � � 2. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS ACHIEVED. Q U r SILT FENCE MUST BE MAINTAINED THROUGH GRADING AND CONSTRUCTION. � z o. 3. ONCE CONSTRUCTION IS COMPLETE AND ALL CONTRIBUTING AREAS ARE STABILIZED, EROSION CONTROL MEASURES `- CAN BE REMOVED UPON APPROVAL FROM THE E&S INSPECTOR. � Q o U = � � � � � O � a I � z � � o o � U w a� , ^ � � d � V � � z a � 2 U ~ � o � [Q � T F = w � O O a � � � � _ � � a o J U z � o � � � J o " 3 � z � ZN W J O O d � a � � Vd, �"� � � a (n o � � wp �o � L �° p� 0 3 J a m z a w � _ N Y 3 @ N O d O N « 3 � N y @ C N O C � O � UC � O - - � m 0 C N � N � V L ��B N�. V�i O ,n ._ 44694.005 @ ' �, _ � � SHEET N0. @ o a« C3.0 L � � _ � 000����� - � � " ❑oo� ■�� �° ❑�0� ■�� ° ,`�r.:\u'H ���, 0 O� ■�� TABLE 3.31-B 5��� � �..-, ���+ GRAVEL CURB INLET SEDIMENT FILTER 0❑� ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS �^ � C� \—�-� � � �f� "QUICK REFERENCE FOR ALL REGIONS" -,'�"""'"'�'� !' 1.SET THE STAKES. 2. EXCAVATE A 4"X 4"TRENCH UPSLOPE \ � � V ��_�� \TH�\\\'I $HU\\'ALTCR y ALONG THE LINE OF STAKES. � L�� \:-�. f)a11=U� 1�.I F�-i � , PLANTING DATES SPECIES RATE (LBS./ACRE) �� s � � "•p OS%10/2021 �,� j � 1 SEPT. 1 - FEB. 15 50/50 MIX OF �j _�, L � % � % � ANNUAL RYEGRASS r%�. , �,�� �� � / ' ��W � � (LOLIUM MULTI-FLORUM) � S/'sx,._>\'�t �� � /�� \ & 50-100 ��N�i FLOW � � � � �4., �/ /% , PERSPECTIVE VIEW CEREAL (WINTER) RYE / �/ (SECALE CEREALE) 3.STAPLE FILTER MATERIAL TO STAKES AND 4.BACKFILL AND COMPACT THE . �. � m EXTEND IT INTO THE TRENCH. EXCAVATED SOIL � 12„ � .�. � FEB. 16 -APR. 30 ANNUAL RYEGRASS 60-100 � u GRAVEL FILTER RUNOFFWATER WIREMESH �� ',� (LOLIUMMULTI-FLORUM) a o j j FILTERED WATER � E ,.* •,.,:�.,•;-��. .�; •.:;.. . o TS MAY 1 -AUG. 31 GERMAN MILLET 50 W a; E �% �M�� /1' � �� ��y' b � ',4�'. POLYETHYLENE `.,� (SETARIA ITALICA) � � � 3 � � FLOW �! � FABRIC (ATTACH :: ` '' - r � Y ¢ LL 3 � .•� �� �P��: TOPosTsw�rH } TEMPORARY SEEDING PLANT MATERIALS o LL = � II e��.� v:... _ ��I ' w o � � SHEET FLOW INSTALLATION Y :. ':; • •' R METAL TIE WIRES) w'Re�'' No Scale � u+ s ^�' :�� FABRIC Q J U p� Z (PERSPECTNE VIEN� J - � �•. <.: .�'e-� ''�'!:' .��� �wePosr w � -�+ O 3' SEDIMENT �II � R .� '• •'/'^i �� "' oa � 0 6i . .: � : .. coNveNnoNn� "�' � io• �cRouNo uNe TABLE 3.32-0 a > o N � I F�ow I M� coNCReTe " � Mern��r�oR '"� M�. SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA � � N v a ��"I � CURB WLET 'MiN- NlPosrs BRACING A A curreR PERSPECTIVE VIEW PERSPECTIVE VIEW 3.1-1 TOTAL LBS. PER ACRE Q � � a w B ��� 12" O � ONx � / 'GRAVELSHALLBEVDOT#3,#3570R5COARSEAGGREGATE. SAF PLA STI C FEN CE METAL FEN CE M I N I M U M C A R E L A W N o Q � � 't�, a ����� ,, �" COMMERCIAL OR RESIDENTIAL 175-200 LBS. �" v > � O ���� II I ��" SPECIFIC APPLICATION: THIS METHOD OF WLET PROTECTION IS APPLICABLE AT SAFETY FENCE KENTUCKY 31 OR TURF-TYPE TALL FESCUE 90-100% F � CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO IMPROVED PERENNIAL RYEGRASS O-5% o ry > POINTS A SHOULD BE HIGHER THAN POINT B. CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND NO SC21E KENTUCKY BLUEGRASS O-5% v � � uNPRorecreo nRens. PIPE OUTLET CONDITIONS a a SF DRAINAGEWAY INSTALLATION 3.05-2 IP 3.07- 6 � J O (FRONT ELEVATION) O GENERAL SLOPE (3:1 OR LESS) � � KENTUCKY 31 FESCUE 128 LBS. SILT FENCE (W/O WIRE SUPPORT) STORMWATER INLET PROTECTION A A REDTOPGRASS z �Bs. No Scale No Scale SEASONAL NURSE CROP * 20 LBS. � 150 LBS. � LOW-MAINTENANCE SLOPE (STEEPER THAN 3:1) � KENTUCKY 31 FESCUE 108 LBS. � RED TOP GRASS 2 LBS. p 3do SEASONAL NURSE CROP * 20 LBS. _ do CROWNVETCH " 20 LBS. � 2 X 4"WOOD SILT FENCE DROP INLET PROTECTION DROP INLET TYPICAL ORIENTATION OF VESCH TREATMENT - 1 SOIL (STABILIZATION 150 LBS. �w PIPE OUTLET TO FLAT FRAME WITH GRATE BLANKET) � w AREA WITH NO * USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES = ¢ 1.5' — � �' _�AME DEFINED CHANNEL c� p PLAN VIEW AS STATED BELOW: ¢ MqX - � ' SHALLOW FEBRUARY 16TH THROUGH APRIL.................................. ANNUAL RYE o ' � � �� SLOPE ,i.��i4'i, MAY 1ST THROUGH AUGUST 15TH............................ FOXTAIL MILLET � DATE � _ � AUGUST 16TH THROUGH OCTOBER............................... ANNUAL RYE > � — . �� ON SHALLOW SLOPES, STRIPS NETTING 3 PROTECTIVE COVERINGS MAY BE APPLIED La NOVEMBER THROUGH FEBRUARY 15TH........................ WINTER RYE � OS/10/2021 �v�� MIN. _^ GATHER ACROSS THE SLOPE. ** SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF O DRAWN BY _�r ��� EXCESS WHERE THERE IS A BERM AT THE � %� FARMVILLE, VA (MAY THROUGH SEPTEMBER USE HULLED SERICEA, ALL CORNERS TOP OF THE SLOPE, BRING THE BERM -�� � OTHER PERIODS, USE UNHULLED SERICEA). IF FLATPEA IS USED IN LIEU � MATERIAL OVER THE BERM AND OF CROWNVETCH, INCREASE RATE TO 30 LBS./ACRE. ALL LEGUME SEED • DESIGNED BY STEEP ,. ANCHOR IT BEHIND THE BERM. MUST BE PROPERLY INOCULATED. WEEPING LOVEGRASS MAY BE SLOPE ' SECTION A-A FILTER KEY IN 6"-9"; RECOMMENDED PS ADDED TO ANY SLOPE OR LOW-MAINTENANCE MIX DURING WARMER • AM ON STEEP SLOPES, APPLY PROTECTIVE CLOTH FOR ENTIRE PERIMETER SEEDING PERIODS; ADD 10-20 LBS./ACRE IN MIXES. PERSPECTIVE VIEWS � COVERING PARALLEL TO THE DIRECTION • CHECKED BY STAKE I� _ _ _ _ , ''! OF FLOW AND ANCHOR SECURELY. A PERMANENT SEEDI NG MIX FOR PIEDMONT AREA • J5 FABRIC � i BRING MATERIAL DOWN TO • • ` SCALE �� A LEVEL AREA BEFORE 4 A 3do(MIN.) I-I U I--I U I-I G � � � � � • AS SHOWN �IIII TERMINATING THE • ii I II i `�� MIN FLOW ENDAU DEIR 4"AND STAPLE � ' ` ' 12 do � � � �I �I PJ ,�a p DITCH AT 12" INTERVALS. �-� �-� DETAIL A PIPE OUTLET TO � f-, IN DITCHES, APPLY PROTECTIVE COVERING WELL DEFINED STANDARD ORANGE VINYL OR PLASTIC CONSTRUCTION • - CHANNEL FENCE ATTACHED TO POSTS (PRE-WEATHERED WOOD, � PARALLEL TO THE DIRECTION OF FLOW. PLAN VIEW � GALVANIZED STEEL, IRON OR THICK PVC PLASTIC), AT LEAST ' - - � USE CHECK SLOTS AS REQUIRED. AVOID � - „-���-��- 40"ABOVE FINISH GRADE WITH SPAN BETWEEN POSTS NO JOINING MATERIAL IN THE CENTER OF THE GREATER THAN 6' ON CENTER. EVERY NINTH POST SHALL � DITCH IF AT ALL POSSIBLE. CONTAIN A WARNING SIGN THAT CLEARLY IDENTIFIES THE O ELEVATION OF STAKE AND FABRIC ORIENTATION Tp FENCE AS A TREE PROTECTION FENCE. g SPECIFIC APPLICATION La 3.38 O � a THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE NO SCALE Q J j INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER THAN o TREE PROTECTION � z � '� 5%)WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT BM 3.36-1 � �0' � Q " No Scale H � EXCEEDING 1 C.F.S.)ARE TYPICAL THE METHOD SHALL NOT APPLY I II � TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS IN STREET = d � W ' oRH��Hw,nYMEo�arvs. S O I L S T A B I L I Z A T I O N B L A N K E T (T R E A T M E N T-1) SECTIONA-A � � N FILTER KEY IN 6"-9"; RECOMMENDED � � 0 s No Scale CLOTH FOR ENTIRE PERIMETER � Z _�( � O � vc� g �P 3.07-1 O � NOTES: � a 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR `° STORM DRAIN INLET PROTECTION CONCRETE. a � � No Scale 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING � � � O 3 PLATES 3.18-3 AND 3.18-4. Q W z a OP 3 NCHES IMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 3.18-1 � Q J ` � 0 � OUTLET PROTECTION Q � � � No Scale � z a O c � O o �--� a� � � U � (� 3 � J � c � � a I � z � � o o � U w a� , ^ � � d � V � � z a � 2 U ~ � o � [Q � T F = w � O O a � � � � _ � � a o J U z � o � � � J o " 3 � z � ZN W J O O d � a � � Vd, �"� � � a (n o � � wp �o � L �° p� 0 3 J a m z a w � _ N Y 3 @ N O d O N « 3 � N y @ C N O C � O � UC � O - - � m 0 C N � N � V L ��B N�. V�i O ,n ._ 44694.005 @ ' �, _ � � SHEET N0. @ o a« C3.1 � � � _ � i EROSION CONTROL LEGEND I j _ � w � I I I � , i � � � � I i '`���.:\L7'H ���, I I I I I I � � � � LIMITS OF CLEARING AND GRADWG �. I � ��o ..,�-� �'P � 1� � �� / I � � I ` � � � SOIL AREA DIVIDE - =r '� C� � I .�. :,�1..�....�.� 2� l � I� I l � � I I I SAF SAF SAFETYFENCE 3.01 V �-�� \TH��\1.SHUq'ALTCRy � I � / � � � I I � .. Lr \:-�. Oa�1=U�-15� I � � � �� � 1 I � � I � PCE � PAVED CONSTRUCTION ENTRANCE 3.02 ��J US/�OIZO2� _�� I I I I I I � I I I r%�. �,��. I I I � \ \ I � I i I � I ` IP � INLETPROTECTION 3.07 � '5���*iy�������_ ��� I I i I � � -�r�+ I I hti� � � � I I � _ I I � � \ � � I � I _. TS TEMPORARY SEEDMG 3.31 I I I I � I � Il � x I I 1 ��� I � � � I � -- � o I 5 � I � I PS PERMANENT SEEDING 3.32 N � �, ; ; SOI L TYPE: � � ', � , O a o 716 � ' ' I � � � > E II I � � — � I � I� o I MU MULCHING 3.35 u, v E _ \ 1 � � � 1 `� � I r u' � 3 �� �� �/ I I � I �� I �� "� TP Tp 1REE PROTECTION FENCE 3.38 o LL o ^ \ I � � I � � � � I ¢ '� u w Z I J � 1 �\\ � � i 1 I �1I I �C DUST CONTROL 3.39 � ; o'^ O r � � � W � N � � v � I � � � l � BM AREAS STEEPER THAN 3:1 TO BE 3.3 6 � � '� � v LIMITS OF DISTURBANCE = 0.50 ACRES � � �� 1 1 �'` STABRIZED WITH STABILIZATION �' � `� '� w .. I ' ' 1 � . BLANKET � � °1 � 0 o Q � � � � I � _ � ry z � � � V � � O 1 �� I ` * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER � a � � I � (PART OFJ TMP 91-2 I � c � � 0 � I i THE COUNTY SCHDOL BOARD OF ' I I I \\ \� ` v � w I ALBEMARLE COUNTY. VIRGIN/A I �"' � a � .. / � I � I � o w � i ' � I � II �1 �1 � � � � I � I � \ ` � � ' I � II� � � I� \ � � � I I I �� I �� �, ` o � � ' I I � I = I I � I � � � � \ � , � � � I I � I � .. � � � � \ I � 1 I 1 I � F � � . � � l I � I � p \� \ � ' � � � I � I w w > � - - - - - � � � 1 1 � I � � � H � �/ � I � � � I \ ` U 0 � � I Q AI'l'HOXIMA/t LOCA/lJN / � �� � � � � � � � 1 z ' GF EXISTING PAVED �/ � � ' � � I � I � I � z� ' O ;ATH iy2 � � _ �522� - - � _ _ _ ^' i I 1 I I I �v .. � DATE � � � � I � � ] i � � -523� - ` i I z . � � � � � I I � I � z\ j OS/10/2021 S O I L TY P E : , i / / ' WOOD BARRIER �/l l /y , \� I TS ' � � I � � � � m� ` O DRAW N BY � � 6"x 6"POST W/SINGLE RAIL � y� � � � �I I I � � � � i � 1 1 I � m 71 C � � _ _ �, � _ ' ' , , o� I � CURB � � � l 1 I� 1 � il � ` \ � EP � � \ I � � 1 \ 1 � � 12"PINE ol .. \ � � � CURB I ' ` \ \� � 1 � I � � � � (DEADJ �\ • DESIGNED BY \ R�9,MP I � � \ II I 1 � I � � � I � � � � � � � I � sow�erwr�Rare �'� • AM � � p � \ 1 I I � � TOP=57Z69' � ` � � � �� I � �I � � I I � � 1 � 1 I� /NV. lN=515.26'75'RCP�� SOIL TYPE : � CHECKEDBY � � � O � ' � � � INV. 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STAIR= � � O 3 � z N �I 19TREADS, � � � ��/� � a - I I 12 RISERS W/{7A/L \ � � y/ � n"i �� &GHEEK WALL °' _ �� _ Q O o £ \I H� W � � � L � SclNCEr�N/cRArE �11 � m W o�3 i� J a m TOF-S 13 38' 11 Q a� c z � „vv ou,,s��.as �e-kcN n �, @ 11 ' � � ` \ SCALE 1"=20' O n��io d « � _ 0 20' 40' � �' � � @ � ` Y o \ c � o \ � c o @ ` � � m \ � b m � � a � ` - \ -- ]OB NO. y c y o � 44694.005 @ ' �, _ � � i I I SHEET N0. @ ` C3.2 d � � _ I � �', EROSION CONTROL LEGEND � w � � � � LIMITS OF CLEARING AND GRADWG - :`���"\L�H ��� `�o .,t�..-� ���P I I � \ \ � I � I � � � SOIL AREA DN[DE - ys _;�L��� C� I I � I I I � � � " ,�� \TH��\1.SHUq'ALTCR y � � � � I � I SAF —$qF— SAFETY FENCE 3.01 - 1 I 1 I � I Lr \:� Oa11=U�-15� 1 1 � � � r OS%10/2021 �,� � � � � I PCE � PAVED CONSTRUCTION ENTRANCE 3.02 'A�� , _� 1 I / � I � , !.PS'/r-> t'`"` ' II 1 I I � j I j_ IP � INLETPROTECTION 3.07 �� � � � I � � I I � � \ � � I I � TS TEMPORARY SEEDING 3.31 I / I � I � � I � � I m E I yry�' I � � � I � � � � I I 1 I I � � I PS PERMANENT SEEDING 3.32 N C � � � � � I � I I ' � E � � � � ��LC/ I � I � I � � O � E i i I i i i I � MU MU�CHzrvG 3.35 = _ I I I � I � � I � r � � 3 i ; ; � � � � � � � � � � i I � TP Tp TREE PROTECTION FENCE 3.38 w O � ,^� �`�J K L M � � � \ � � � � I � h � Q� J U OJ Z \\ \I /� i � II � �I QC DUST CONTROL 3.39 � � o N � , � � � I � � r 1 � � � I � � W °1 `+' a_ �\ i P S M U � I i �I I I B M STABIL ZED \NITH STABILIZATION 3.3 6 Q O N Q � \ ' � � BLANKET o Q � � � � � I, � I � I � V v � Z > O LIMITS OF DISTURBANCE = 0.50 ACRES I 1 I � �� I 1 * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER � � � � � � � > � DOWNSPOWT (TYP.) ' � ` m � � v; \ 1 � a � � — _ _ — _ _ _ _ — _ OJ J Q � I � (PART OF} TMP 99-2 . - - � - - - � I � � o w � I � THE COUNTY SCHOOL BOARD OF ' I � � � � � � ALBEMARLE COUNTY, VIRGINIA � � I \ � I � DB_ 1740. PG_ 554 MOD LAR � � I � - ' � � � CLASS�OOM � 1 � �� � � � � � ' o FFE = 52�.40 � I �� � � � � � � � ' � I � � � I � ' ' I / I ' IIII � 1 � � � I � � x I � ' � I I � � F 1 ' �� � � I � � � � , �. i w `, � i i ' , � , > w _ i � � � i � � � � � � - - - - - - - - - - - - — i � i = a � i i � i Q o � � � ' i � i i ' z � o \�\ / \ o; I .� I I� � I� �� I in DATE i / I 1 APPROXIMATELOCAT/ON / � � / ' � I y�7r� � , I� I� � �1 II -' j OS�lO�ZO21 OF EXlS7/NG PAVEO �i � � � I � � I � � . 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I i � � � � I I � � i i I I I i i t � � � � � � � � ` I I i � i � I � � � � 0.00 AC FORESTED/OPEN SPACE ' ^ C7 � � � � � � ` I I � � � � I � \ l � � \ \ \ � � � fl � � � � � I I 1 � 1 l � � I � ti �� / � � ' '�= � � I � I � � / � � \ \ \ \ 1 � � - - - � � � � i 1 1 � � 1 � ' ) %/ • !' ,. 1 � � 1 I , � �\ \ �\ ` � � � � 1 I I I I I i � � 1 I ' � � I I 0.27 AC TURF � > � � �� , « � - \�1 \ � l/c ���\� 1 � �� � ! � / \����\����� ^�\ i _� �- -, � � / � � � + I �� I I I I � � � I + I � / I� I � 0.23ACIMPERVIOUS , @ ' f 1 �+ 1- II�\ �\ � � llli� �1 \\ \ � ` ; �i, � ��\\�\\\ ' ' ' '� � � J / . � \ � f 1 � If � � 7 � I I I I � � � � / , \ � � / � � Q � z 3 I � l � II � � � � �111 � � � t � � � � i << -' ����\� �� �^J � ` � \� r� / � 1 �� f � is I � l � � I � � � / �/ � ti �� � I � REQUIRED REMOVAL: THE 0.40 LBS/YR REQUIRED REMOVAL WILL BE SATISFIED BY PURCHASING NUTRIENT Z � ,�, I � � � I \ � ��I J� I � � I � � � \ � C��C i� ���` � _ - ��� � % � � � � � 1 � �� � � o � 1 � 1 I I I � � � � y 1 � � � � CREDITS. TO BE PURCHASED FROM A DEQ APPROVED CREDIT BANK IN ACCORDANCE WITH LIS CODE OF � = a ' � r \ � � _ _ � 1 � �!/ � I � I I � ` \ i tc/r i �r�� � �^`` � � � � i � � � � . I � I I � � � ' 1 ! I I � � � � � � V � , I � ( , � a � � � � � o � � � � O � � � � � � i � � � ^ �� >y� � � ` � � i I 1 I � VIRGINIA 62.1-44.15:35. V �. � J � � � •• � I � � � � � � � „ �/L / � � � � � � ♦ � � / - \�,�. ��j � � `_ � ' �� \ I � � I ! I I I I I �, 1 1 \ � -� 1 1 � 1 w a @ , y y : � \ � I I � � � \ � -\ � � � v� tC � � � � _��J/ � � i;��� i � � 5�i i � � �� - � � � � � � I � l / i 1 l�t /� L � I \� � i I � � � � - - _� � � \\ � ! �/` \ / � � � �� � / i i � ��� � � / 1 � r \ I � I ! � Li Q r a� � 1 � � \ � � 1 f 1 ry 1 I I � / � � 1 i J -o _ ��� \� \ \ � - � �i i � \ � � � � �� � -� � I � ll V ' I 1 � � z � ' 4� \ ` � ` �, ♦\\ �� I' I I11' � ♦ , ' � � '� \\\\\����`�� � I � ` - - � ` i ��/i���� � \ � \ � ! /� �ll '� � i \ � I / // / �I� m a � ' � ' � WATER QUANTITY CALCULATIONS: w w , . - i - ; - . � � i i � ' _ _ _ \ ` , `, \� + �f � � ` r `, ' i` `;���;;;����� ��,' - _ ' ' _ - - - - -===- ' . � `� �. ,' ' ; ii i + �' � `_ � - , ,' � ; ' �/ i` J a � i i � ���� � �� � _ - _ � , - - - _ - ' � � . � i i i � � � � � r � , W s 1 � _ � � , � � � I � � 1 �1 ` 1 I � �;���� ����\� �� � � _ _ _- _ , - i � �^ �I � ` � � ` � _ � � I � I � � , � 1 I � i l� � CHANNEL PROTECTION (ENERGY BALANCE): / � " � i ` � _ � �� I � i i � ♦ � I I I � � . \ / � / i � V � � � f - _ � �� � � lll � � � � � 1 ` l � � ;\\\\ ��\\ ��:�� �` �i �� � � � � 1 � � � � � � � � III � � � / � � � I I � fll �� UQr � ( � ^ ' � � ��� \ 111 � � � �� i � � lllll � } \� � � � � / I I � � � /� � � � ��\�\� � � � I ` � � � � � � � ' � � _ � I { I I I � ��� � � � �� \ ' / JI � \� \� \\ ` I � I � � � I I � ( � / ' / � .�p I � � � r � QDEVELOPED�� 0'9���QPRE-0EVELOPED�RVPRe-oeve�oPe�)�RV�eve�oPeo)+ON SITE OUTSIDE LOD- UNDETAINED LOD � � 7 a f f \ � ♦ I � � � � ` � - ' - - � �� � - ��' l 1 \ J i � � � � � I I � � � � � 4 I I � , / � L c � � , i /� � � ��� � � I I I \ l _ - = � _ _ - � 111 � / � � � �� � _ i l \ \ � i � I � � � li � l � O � � o 1 ! i � �� � I 1 �� ♦ � � 1 1 1 _ _ _ ' ! � �� e , i / � � I \ 1 i `) ♦ � � I � � � I f ! 1 I 1 � I 4 � I "" a� I � � � � / � �� � t } � � � � 1 - � - - - �, � �� / � � � � � � � I � � � ' / �\ 1 � � rs OK 0.37 CFS <_ 0.90*(0.32 CFS`0.018 AC-FT)/(0.045 AC-FT) + 0.40 -0.12 = 0.40 CFS � o � f ' J I l/ / � 1\ 1l t\ � � �� � 1r� I I i � � I� � �_ ` - � �\� � I � � � �� �� '1w �� �' . �� �� � \I � i� Ifr1l� \! � I ,1 / � � 1 \ I � � \�� p � � O � c � I I ! / /� �\ \ \ � � � � � I l Il 1 � � � � � . � �\� � ca 11 � 1 f\\\ f � I � � \ � I � / � �1! / � I f / 1 1� •`� V � �� 1 i L.L � � �' 0 1 a� � 1 11 � I � d iI ' 1 1 i � � - � ������ �� � � � \i � � � �� �� ` \�\ b s' � i� / ��\ � I 4 � \ I � i � / 1 �� r ! / � � 1 I f / I I � � I + � � FLOOD PROTECTION: � � w � ° I I I � / / � � ♦ � � \ \ � \ � � � I � 1 I � 1 � / � / � J / 1 1 � I I ! I 1 � f I � 1 / o I / \ � � � � � � � � ` � � `r' - - - � i � � ' �l . _ _ / � I � � I � U � � � ' � � / / i , � � � : � � � ♦ � � � / / � \ � ! � I 1 1 � / � � / � 1 I I � � 1 I � I _ �� 1 I � f � a�'� m I � , I . i � � � � � � � � � ' � � i � . � � � � � � I � � � � / �� � 4 � � I 1 � � I � � FOR THIS PROJECT, THERE IS CURRENTLY AN EXISTING STORM SYSTEM AT MONTICELLO HIGH � Q �, o \ � \� ) � i I / � I ! Ifl I U a � � i � � � � � � � " � 1 � 1 � 1 � � � I �� � � � l < < � �� / � � � J ' I I I I � I � SCHOOL THAT CAPTURES THE EXISTING FLOW FROM THE PROJECT AREA. THIS SYSTEM WILL BE ,� � � � � ` � s ' � � � � � _ _ � � � � i � � , i � 1 1ri i < < � � � � � , � � i � ' � � � � � � � ` �' � � � � � � / � � � � I � � � / / � / ! � � �� / � � � I � ADEQUATE FOR THE FLOW FROM THE PROPOSED CONDITION. THE EXISTING STORM SYSTEM OUTLETS = �p �,� � I l / ! / U `C' ' � � � 1 1 1 � I � � � � _ _ � / � ' y - _ � / / I � ` � � \ ,� � � t � � � ! Ifl 1 I ! I 1 I 1 I � `° o / , 1 � � INTO A CONCRETE CHANNEL WHICH LEADS TO A PLUNGE POOL. THE PLUNGE POOL OUTFALLS TO A � E .. / �� � � ` � � � I � � � f / �\ i � - - � - - _ _ � i � ♦ � 1 � � i fll I � � / � I � I a -� _ � I � � � � � � � � � � � � I � � � - _ _ l �� � - - � - - _ � 1 � � � / � � I I i I ! � I I I DITCH WHICH RUNS DOWN TO AN EXISTING POND. THE TOTAL DRAINAGE AREA TO THE POND IS � @ ^; I 1 / � � ll � � � � ` � � 1 1 I � � , � _ , / I /i� _ _ � � _ I � \ � � I I � � / I � I � + / t � � � 1 1 I I � � � � � \ - / \ \ 1 / � 1 � 1 I � � � 1 / I I AROUND 177 ACRES. THE PROJECTS LIMITS OF DISTURBANCE IS ESTIMATED TO BE 0.85 ACRES. O � O a o � I I � � � � � 1 1 ti � � � \ �� � � 1 1 � � � \ l I t � � � , � � �� �� � _� f I� � � \ ♦ � � � � / � / I 1 I i � I I � I o Z � � ! � � � 1 - - � - - \ I I � \ � � I / I I 1 � � I I I THEREFORE, THE SITE'S CONTRIBUTING DRAINAGE AREA IS EQUAL TO LESS THAN 1 /o OF THE TOTAL J o �, � 1 � � I � � � f � � � � � � � � I 1 � � I � V � � ' � � � � � � � � � � � � � � � � i � I � � t � 1 DRAINAGE AREA. THIS SATISFIES THE LIMITS OF ANALYSIS REQUIREMENT FOR FLOOD PROTECTION. _ ~ � � I I 1 I � \ � � _ � 1 II � � � ♦ \ t � 1 I � / 1 � � , \ \ �1 I �\ � � � � � � � � � � � � � I � I � � = - - _ _ � � y � . � � I� \ � � � � �� � � I . � � \ 1 � � I � � I � � I � I CHANNEL PROTECTION REQUIREMENTS ARE SATISFIED PER 9VAC25-870-66. FLOOD PROTECTION IS �� �U � z N � � I � 1 � \ � \ � I � 11 � � � � � � ,� � ~ ` ` � � � 1 � � 11�� � � � � � � \ \ � I 1 I N � �� � � , _ � � � � i � ` � � � � I I I � � � � � SATISFIES PER 9VAC25-870-66 SECTION C PART 3. � . . w ° �' \ \ \ \ \ 1 � 1 / I � � \\ \ \ � � I ! 1 1 � ,� �� l ~ � � � � � � / � \I I I 1 \ � \ � � ( I � � � I � � � � � � � I � ' � J � � I � I / ♦ � \ ♦ \ � ! � � � / 1 � - � � ♦ � � \ � \ � / J � °' � , , . , . , ; , . , , , , , , , , � „ , . . _ - - - - , , ; , ^ �,, , ., , , , , ; , , , , � � , , , , , , , � � � U Q o � ' � � � ��> �I � \ I ♦ � \ \ � / I � � � \ � � � - � _ � � � � I �t �� � � ��! � � ♦ � � l o � I I / � / � < < I � o ,� � I �/ _ � \ � �\ � � �� \ \ i � � \ \` � � \ _ - - �� � \ _ � _a � ��` �!l�r � \ �\ 1 � �� Oti � 1 I � \ \ ' �� / � .l � � 1 r � ~� w ac �� � \ � 1� � � I/ � � � � � � 1 i � � � � 1 � � � � �� _ � �� _ / i ti { 4 1 � � � � I � � � m a�3 � � � T � � � 1 �i � i i � - � � � � \ 1 n � t � 1 \ � � � / I I rn � � \ \ � - / / � � � � � � � \ c� 1 \ �i / I f a ? x �� � �� � � � �� � I,\ �/ � ���r i��� = � � �• � � _ � \ � \ � \ � \ � 1 S' o `n f � � � � + � \ �\� � � � / + � � � � � � r / ♦ � / � l ��/ i � � ► � ` � � � l � i I � � � � � \ \ ,� � _ � � a"i o � � \ \ /' -/ � � 1 � 1 � / � � �-� I 1 l / ' � � � �, � I � �� 1 I � � �\\ � \ 1 \\ _ i � � � � �� r O co d U � � / I/ �\ / � /� _� � � / �//�� \ �. � � I � � / `� \ � 4 , � ` / � '�� � \ � ` \ \ \ \ � � - � � /� . O! � � � 1 � / � / \ � � /� ` ~f ' , � � � � � \ ` / � / '(/ @ p 1 � I / / � �/ /,� � � / �!� � l � I I � � 1 \ \ \ 1 � � r � i � � � � J i � � l c / / � J �� /� \ I � � � „�� � � � � � ��� � � � � � � � \ \ 1 V 1 \ � � � � � � � � I E -o � � � / � f �1 �/ � ' I � rw � f � 1 \ � \ � � _ � ♦ i � i . � c � � � � ! /( N 1 l / Q I I � I I \ \ \ / � i / g t6 ��� � \ � �\ � � � � ����II �� \ �� � / �� � � � �� � � I 1 � \� \ \ 1 \\ - - - - - J �/ / � � �� � , � � . , � - � � -` � � = - - = �\ �- - ' � /�1��I1 � �A.� I I �� / � \ � 1 c � i � / � � ` 1 � _ i ' i/ �/ � � � � / i � i� t6a � - - - - � ti ! / 1 ll •? \ 1 \ � \ � ♦ . / , � � � _ � / / 11 / � 1 � 1 � 1 � \ \ � n` � � i / ' • ♦ / ]OBNO. � c � � � ; ' - � _ / / / � \�11 \ � 1 / I / � / i 1 \ \ � � � \ ✓ � i _ , @o 1 / I 1 . `, �%_ _ - - ,' ,,'� �`� ` - - - - � ' � �'� � , � , � � ' ; ,' � � . ` � �� - � ! , ', �',' 44694.005 @ � } � i - - - - - i � � i� � 1 � ` � ♦ i � SCALE 1"=150' � i @ o * ? / � I' I�� ��� ��� �� � i � � �� // � �` �\ �� \ �\ / � � � SHEETNO. ao � 11 � � ���� - r �-' � � � / / 1 / � / � � � �� � \ � \ �� � i0 � 150' 300' � � C6.0 � � i i � � � _ _ r i r � r � i � � � � . � � � �EQ Yrginie RunoffReduc[ion Me[hod Re-Qevelopmenf Complinnae Sprevdslheef - Varsian 3.0 w Hydrograph Report Hydrograph Report ��.,:���H �, `--'2011 BMP Ya�edards arsd Spetificatiorts ��'YUL3 Uraft BMP Standardsand Speufi[ations `�;� �-1 �(.�� HytlreOow Hytlrographs Exlension for Autodesk^.Civil 3D�e 2019 by Aulodesk.Inc.v2020 Montlay.OS i 10/2021 Hytlraflow HyOrog�apn5 Extension for Nulotlesk(gJ Civil 3D:J 2019 by AutoOesk,Inc.v2020 Monday.05;10 i 2021 S '�i.,.. C ,R data inp�utcella �� _, �L��� � Praject hJame: Monticello HS Modular Hyd. No. 1 Hyd. No. 2 � � mate: 5/14/26Z1 ccnuanivai�es " ,_�� \TH\\\1.$HUq'.4LTf.R y Monticello HS Existing LOD Monticello HS Proposed LOD Linear6�evelapmentProjecr; �,�c cakuL�tiuncells Lr \:-�. Oa!1=U�-151 Hydrograph type = SCS Runoff Peak discharge = 0.324 cfs Hydrograph type = SCS Runoff Peak discharge = 0.985 cfs Site Ir►formation Storm frequency = 1 yrs Time to peak = 11.97 hrs Storm frequency = 1 yrs Time to peak = 11.97 hrs � OS/10/2021 t�,� Time interval = 2 min Hyd. volume = 0.018 acft Time interval = 2 min Hyd. volume = 0.045 acft ��i• -=.'�' Drainage area = 0.500 ac Curve number = 63 Drainage area = 0.500 ac Curve number = 78 ��:S'�;-_ �"� Basin Slo e = 0.0 % H draulic len th = 0 ft Basin Slo e = 0.0 % H draulic len th = 0 ft �'+a �� �� � Post-0eure lapmerrt Project (Treatmerrt Volume and Loads) Tc method = User T me of concg(Tc) = 5.00 min Tc method = User T me of conc9(Tc) = 5.00 min �~�i Enter Total aisturbed Area (arres} � 0.5� Check: Total precip. = 3.04 in Distribution = Type II Total precip. = 3.04 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Storm duration = 24 hrs Shape factor = 484 ar"r?PQesign Specificatiansiist 2013 araft Stds & �pe�s m E � linear pryiect? No � o N � i � tondcoverQeoseneeredcorrectfyP V+ ¢ o � � + � � Tdd distur6ed Qrev entered] �/ � E w 01 Monticello HS Existing LOD Monticello HS Proposed LOD � � �'�, 3 Pre-ReDevelopmerrt Land Gover {acres� Q(cfs) Q(cfs) O(cfs) O(cfs) Q � 3 Hyd.No. 1 -- 1 Year Hyd. No. 2-- 1 Year LL o A Soils B Sails C Soils U Sails Tatals LL 0.50 0.50 1.00 1.00 � 0 � -^+ FarcUUxnSpace Imsl- - ._ ..rry L M �]�Z; Q J U OJ Z d �'s.::;_:X'"' :_!_' W � -ln 0 hbmged i�rf�xral - 9 stl'::_d.���_:: j.-3 0.45 OA5 0.90 0.90 � � a ;6iy a Is':�'9e_' _:•r_�.:�"I t_.._ . _7 U. �Fy � � � Imyervio�eCnver�aaesl '��! 0.40 0.40 0.80 0.80 � F � X U ... � � � W C.�� � � v � 0 0.35 0.35 0.70 0.70 � 2 � ry Z Post-Develapment Land Cover {a�resf F V � � O a � � 0.3D 0.30 0.60 0.60 o a' A Smils &Soils C Sails O Smils TuWls � ry w FerrrsL�PznSp.�¢ �aves�.. ��d :t��x�_. �.Y` � M 2' :r_u�+.•JI_'_:t�x.•.i:�_ r�clrc:u� 0.25 025 0.50 0.50 � OJ J r.bm8ea'rutiac.el - ��.���-:•�.��y�� - �, � � Is ;r9. :rl tc:. •. . 020 020 0.40 0.40 ImPzrvi�ietover�aQes� _ _] :.2i � Afea�Chxk OK. OK. OK. OK. �:.i: D.15 0.15 0.30 0.30 � � O i 2 o.io o.io o.zo o.zo � � Constants Runoff Coefficie�nts Rv O � ������_� P.� �d� ' �+.-����I .1 ASoils BSoits CSoils USnils D.05 0-OS 0.10 0.10 F -ri:_:u.� 'd� C:_..�. ; ..._•r_�el I .��' [_._•;l�::c_•.iicl__• �^i'7 �:.G7 ". -. -.. _ � �� F � .: ,s � 'LI �t1 r,.ill _ _� .idi.i::_d ��rl � L ' ?] " ' w - �� M _;, r i r�k r. '�i i - '- 0.00 0.00 0.00 0.00 > w 3_ � . --: a, �a; •` �� WATER QUANTITY CALCULATIONS w - - 0 2 4 6 B 10 12 14 16 18 20 22 24 26 0 2 4 6 8 10 12 14 16 18 20 22 24 26 = Q � -.. '.Glw.i s. _', i : cl Pi :�.,�. _:;._�..ac• n�. 13:_'I s3�� Time(hrs) _ Time(hrs) Q 0 - Hyd No. 1 DRAINAGE AREA ANALYSIS (PRE-DEVELOPMENT) z O • a • • � � � � a � • • 1 • � EX LIMITS OF DISTURBANCE in oATE , • , • AREA= 0.50 ACRES � lardCovcxSunxmary-Prc �a.���v-��:.,,.m�.Y.M��r,,.���; ��.���v_.5:��,m�.ry��o,t La.�dCa�verSu.�nma.ry-F�ast Hydrograph Report y rograp epo 0.03ACRES (IMPERVIOUS) � os�io�zozi Prc�lk�euefagrna�t L'uted Adjusted� Pmt fk�ev.8 1!w Imperviaus Post-IlOevelo-pnmt Posi��evcbpment Krw Imperviaus 0.47 ACRES (MANAGED TURF� � Hytlraflow HyarogrTpns Extens�on for N�dotlesk(aJ Civil 3D:=)2019 by AutoOesk,Inc.v2020 Montlay.05;t0i 2021 Hytlraflow Hyorographs Eaension for AutodeskOO Civil 3�(J 2019�y Autotlesk,Inc.v2020 Montlay.05+1012021 DRAWN BY �___,, `..__,�. ,,:., - O.00ACRES (WOODS) -1-_ - �. ..__• u::s_ F:YL'SJ�ID='iSpJCL'i:}l_•t;,:=::1 c.oa c.ac - a.�r � aoo H d. N0. 6 Tc= 5MIN �� �_,_ ,s_ �� �-'_": ,__:i Hyd. No. 3 Y CN=63 � '�'s•-&`�«�R��'������I ,�c c.�.� 1':'_�;`:J9N':;I_'_::I �:.�]L 5'�C,�'ILL':IR1jI:Y!'SLI O.� Onsite0utsideLODtoYardlnlet UNDETAINEDLOD DESIGNEDBY %Fs•czt �7'S �4i 'i Fr_:t �'� 'l..Furest 4?i r.�,,,,-.,dT,-i ^���- �a,,.m-�dT�ri[o,_•� Hydrograph type = SCS Runoff Peak discharge = 0.384 cfs Hydrograph type = SCS Runoff Peak discharge = 0.125 cfs Q(CFS) V (AC-FT) �.U,��1�,i t;�,w;;,�nsl a.a� e.?; ` �.z� az� Storm fre uenc = 1 rs Time to eak = 12.07 hrs Storm frequency = 1 yrs Time to peak = 11.93 hrs • AM 'y��l� {DC16� 9 y Y P Time interval = 2 min H d. volume = 0.006 acft 1 YEAR 0.32 0.018 Time interval = 2 min Hyd. volume = 0.035 acft y • CHECKED BY k��•-s'��i ����*�I e�c c.r: �r=;;•��-� �. ;��•ii C.d1 :;_gMed IM{tudl a.z� Drainage area = 1.070 ac Curve number = 61 Drainage area = 0.050 ac Curve number = 83 2 YEAR 0.60 Basin Slope = 0.0 % Hydraulic length = 0 ft Basin Slope = 0.0 % Hydraulic length = 0 ft 10 YEAR 1.60 • .'�6Lm.ts-d Turl 99'i ec- ��s tit,�a;:d',�i sa:� ':_�.w��^-dT�-i '�� , Tc method = User Time of cona (Tc) = 10.00 min Tc method = User Time of cona (Tc) = 5.00 min • J5 Pn__•o•'_1: i_rs' k.CY_�v,lmpervq�us r,_,: ,�__�; ,_:c_:_� Total precip. = 3.04 in Distribution = Type II Total reci . = 3.04 in Distribution = T e II SCALE P P YP EX DRAINAGE AREA ON PROPERTY OUTSIDE LOD • Pncc-r��m�--:.•�I�_�:i c,.i e,., e.t3 a.oi I ,�_,. i �_�== Stormduration = 24hrs Shapefactor = 484 Stormduration = 24hrs Shapefactor = 484 1 - :J_J:I .A2i{dpGSI " • rr �Or k.� .n" . ..:I ]:7; :.9; P�:;-rn,_ . __.. C.9; 5r;`r�:_ . :::cl 0.`37 . �i :.. . ..... __, ADDL ONSITE AREA TO YARD INLET ..... 1, � , .,.. _ __ .....-. :. . ,. . � . • AREA= 1.07 ACRES :i•n__ ; .:; ?.'.s ='� �:�•nx :__: s;� s rr�._-._�: a..<. O.00 ACRES (IMPERVIOUS) TntalSiteArca�,ives� OSO 0?B Fi�u15i[eRrra�xrol 0_50 Tx�IRc0ev.3itArca a� 1.07ACRES (MANAGEDTURF) • �'�"� 0.00 ACRES (WOODS) � snc� osz o.z3 F���i aon o�vsnz w o.,s ��V s�ti � az3 Onsite Outside LOD to Yard Inlet UNDETAINED LOD Tc= 10 MIN - ._ Q(cfs) Hyd. No.3-- 1 Year Q(cfs Q(cfs) Hyd. No.6-- 1 Year Q(cfs) CN=61 � Tre.atrnentVolume ancl Ni.itri�ne Lo�cl I Trra-i7��n- Volume and Nu.rienc Load , o.so o.so o.so o.so Final Po#� � Q (CFS) O R�-�l-Rebevebpment rost-uevdapme�t o.as o.45 1 YEAR 0.38 0 Prt Re Oeve bpme n l7 rea[me nt V�ol une Ueve lo-pn rn t 0.45 0.45 � C.�];9C ., .�.�3 .;0?�' -!r«��ntVdune O.001;3 � Trm4nmtVotwme Q0174 2YEAR 0.83 � �aae�ftl � ireatmeni4'dume � � �m�ftl IMfl�R� ��e r�l o.ao o.ao 0.40 0.40 10 YEAR 2.57 � a � i z � 3 Final Past- 0.35 0.35 � d' = 'h_�:t Rc�eve Mpne n t Rost-0evdapme rt 0.35 0.35 - PrrReOeuebpnentiicatmenV:durn UcvelePrnent � DRAINAGEAREAANALYSIS (POST-DEVELOPMENT) '-' � 39� T]1 383 IrertmentVmlune 231 Tr�enmtValu�me 7�4 /� > > �a`bicicetl Treatment4'alume � / � o �DISKICltI I �CIflK{!!t� V � � « �arbickeq 0.30 0.30 0.30 0.30 PROPOSED LIMITS OF DISTURBANCE � t Fin� Rosr I � AREA= 0.50 ACRES � z N ft:iite0evebpment 0.25 025 025 025 0.23 ACRES IMPERVIOUS � Pre�ReDevebpme�tTPLwd OevebpmentTR Post�Llevebpme�tTP � � � 4,25 4,14 ❑,62 �d ITPI O.la OAe I 0.27 ACRES (MANAGED TURF) O � `� pbfYrV Load Lmdll6ryri � 7 a pb/v�l I�h��� 0.20 ozo 020 �I o.zo 0.00 ACRES (WOODS) w � @ Tc= 5MIN � O o : . . � t �:- ya-_,:- '-. _ .-�.- CN=78 � �--� o ....-..,. .,...= . ..rl. . � � " r ' � �^a ri3: , _ .. . . 1�C . � . _ : ri3: 0_15 0.15 0.15 0.15 � � � . . .n acr�. rl ❑ .r Q(CFS) V (AC-FT) Q W Q a o ,o o.,o o,o o.,o J m J ,- F i '= : '^a.R`i°„^':a�':"° 1 YEAR 0.99 0.045 a c lal ��tr: . 1•.' . .:y '�: .. B. rwerc 1?`. i � N _ . - y _ . � R,�:.� �a.�.�,;�y� 0.05 0.05 o.os o.05 2 YEAR 1.38 � � U c 10 YEAR 2.68 U J � 0.00 0.00 0.00 -I' 0.00 � � Q a 0 2 4 6 8 to t2 �4 16 16 20 22 24 26 0 2 4 6 8 �o �2 �a �6 �8 20 22 24 26 PROPOSED LIMITS CAPTURED IN SWALE O � ( ) � . .. .- ... 7PLcadHeduetic�n TPLc�dRcducticn H v o -- 7ime(hrs) ( s) AREA= 0.45 ACRES �, Time hr .:�-rci�l�nti ax.. . ... . ..._ �:.. ,; . �.. . ... :. HeauircM (ar ReCuirediorhaw - HydNo. 3 - HydNo. 6 � o . : Qacieagepre�poer �< . _.. . HeilevdcF�d Area �'�1 ImpsrviousArea �'3g 0.20 ACRES (IMPERVIOUS) � � � 3 P� . . .,_.. . pr,'v�l Ut'erl 0.25 ACRES (MANAGED TURF) J W � 0.00 ACRES (WOODS) � � � a .. :�dJ¢reoQcisco✓rsitentwelhPog-RcDevebpmeNaveagr'... . Q �' � Tc= 5MIN � = o . _:.r_w�i.mprrviwismwvj. � o � ��3�� CN=77 U �Z � . . ..:.,�r.'.xwd•eeis:tua,e+.u��ir�re�.�n r�..z•��:m�e•�.:cm c::er ^.:i:_.�_ EXISTING INLET TOP F U a O V / ,._,.. , �, ; _,_., c�, .,_:,_�:�.;_.,, 3 Q(C S) � ,� � .. � J c � ELEV. 518.50 1 YEAR 0.84 m � �o � . r - - . � - - . - . - - WEIR WALL SURROUNDING EXISTING INLET 2 YEAR 1.20 O a @ c + g� 10 YEAR 2.35 � � a o � U TP Load Reduction Required{Ih/yrM O.dO ELEV. 517.70 3 PROPOSED UNDETAINED LIMITS OF DISTURBANCE � � � � I I AREA= 0.05 ACRES J O � 3 �I 4.5" I� 0.03 ACRES (IMPERVIOUS) � U o � PROFILE OF WALL WITH ORIFICE 0.02 ACRES (MANAGED TURF) J � � 0.00 ACRES (WOODS) U Q o Y PLAN VIEW Tc= 5 MIN �� w �o �a-22s PROJECT: ti��c�o�i� r�.�x�i�„���tb� �ES��e �y: ;.. r,��� WEIR WALL DETAIL CN=83 � m a 3 STdRM SE WER aE SIG N C dMPUTATIDN S L�C,:TION: �haldtesville N.T.S. Q(CFS) a � y ��_�� COUIJTY: CherlcRtesoille � � �T ChEcted Gy: J. Shc��vslt� � � N STDP.Iat FP.EtiUE�dv^.'r 10 W�^.,=f. BTAT.F'�.tJ: 1 YEAR 0.12 O � o L'P:I T S E N G L I S H 2YEAR 0.16 s 3 10 YEAR 0.30 C �' N G @ � � � L�F_�I`: .L'_ti��FF �.� T��T.�L F_?I*: FL�:�F'F' L*��FRT ELE'�_?TIU_'. LE1tiGT _L�FE �E =H.� `:v^:t- �as��-ir. Fri_[i:e `:OF\[.�LFIC�:C' FL��� � o FiFE FR��`,' F��L\? T��F•��L�7 .?F:E.� ����ffF LtiCF.b.���L�.. L\ZE7 F.?LL Latst TotafQ GF�S? LOC[�F. ��iP��e �a ��r -,iF�pe: =k�e ��ptr-a -?re=oi Hrr. '�^ E.*. TL`.fE � @ *;v RFt'fRE1�E _T_i P.ffEFE'�.E =T.�1 _�" _ `.[�T iZ.�7E�� 7P.[E ��� E.4�� 3e�Ec=; F4.::•.C.*. Fk��:. �Lr. F�`.[_�LFk_ $ m .�-s= `,fir�.te> L^.H: �Fv tiF= Ft tt FI L^. CF: Ft Ft Ft =_Ft Ft Ft`=- Ft =- - � � t6 a 'li = �4 : �[ '- '3 1 �'� .11' .1'� ..L-� �'13 .1 '1-� ��l-;� �1=} ]OB NO. � d N o Exr-cv=_ 13' C��3Il E;i. E;s75I' 153 1 �, 1: ; 3;- i:_ ;1 4,'�€� .11' ' L€=' la �p��} 1 _ 1; : :G:1. :-1; [3c 1-a; : 1: :Z«3 m '� „ - -- ,. . �p��� - � <; 44694.005 = � Fxis� a:r:�n�r..�r�a�: - -- i :_ i � i=. , a=- -t,_i= a-c•• t, � .:i.�c in i i.:: : x:i� i : . a= �a i . � � � o SHEET N0. � � t6 0 a« C6.1 � � � _ LOD AREA CONTRIBUTING TO SWALE INFLOW HYDROGRAPHS OF SWALE TOTAL DRAINAGE AREA .e `w�.\LI'H���, Hydrograph Report Hydrograph Report Hydrograph Report Hydrograph Report s`, � �;�, � �� �'2 HydraflowHydro9raphsEMensionforAutotlesk�Civil3D�20t9byAutotlesk.Incv2020 Monday.05/10/2021 HydraflowHydrographsEx�ensionforAutodesk�Civil3DOO2019byAutodesk,Incv2020 Monday,OSI10/2021 HydraflowHydrographsExtensionforAutodesk�Civil3DOO2019byAutodesk,Incv2020 Monday,OSI10/2021 HydraflowHydrographsExtensionforAutodesk�Civil3DOO2019byAutodesk,Incv2020 Monday,OSI10/2021 y ,,.fN�,�^ � Hyd. No. 4 Hyd. No. 5 Hyd. No. 5 Hyd. No. 5 " "�� \lll 1�\i.SHOq'.4LT[R y Proposed LOD CAPTURED IN SWALE Combined Proposed Flow to Yard Inlet Combined Proposed Flow to Yard Inlet Combined Proposed Flow to Yard Inlet I.�: �:� 0�p=(i>'i 5I " U5/10/20Z1 � Hydrograph type = SCS Runoff Peak discharge = 0.841 cfs Hydrograph type = Combine Peak discharge = 1.080 cfs Hydrograph type = Combine Peak discharge = 1.820 cfs Hydrograph type = Combine Peak discharge = 4.549 cfs 'A�� ^�� Storm frequency = 1 yrs Time to peak = 11.97 hrs Storm frequency = 1 yrs Time to peak = 11.97 hrs Storm frequency = 2 yrs Time to peak = 11.97 hrs Storm frequency = 10 yrs Time to peak = 11.97 hrs r��, t�. Time interval = 2 min Hyd. volume = 0.039 acft Time interval = 2 min Hyd. volume = 0.074 acft Time interval = 2 min Hyd. volume = 0.115 acft Time interval = 2 min Hyd. volume = 0.268 acft • S/r� �� ,,, 1" Drainage area = 0.450 ac Curve number = 77 Inflow hyds. = 3, 4 Contrib. drain. area = 1.520 ac Inflow hyds. = 3, 4 Contrib. drain. area = 1.520 ac Inflow hyds. = 3, 4 Contrib. drain. area = 1.520 ac -'��f�Hs Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.04 in Distribution = Type II r, � Storm duration = 24 hrs Shape factor = 484 � o N � N C � � W � � W � 'Y H H i 3 Proposed LOD CAPTURED IN SWALE Combined Proposed Flow to Yard Inlet Combined Proposed Flow to Yard Inlet Combined Proposed Flow to Yard Inlet o LL o ^ Q cfs Q cfs Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) w O m ,� ( � Hyd. No.4--1 Year ( � Hyd. No.5--1 Year Hyd. No.5-2 Year Hyd. No.5-- 10 Year � W � M 1.00 1.00 2.00 2.00 2.00 2.00 5.00 5.00 ia � v� O .. a � � � a 0.90 0.90 z F " � U � Oij Q (n 0.80 0.80 4.00 4.00 � Q ?'i p � 2 v N Z = U � � O 070 070 - - - - � � � � � N � 0.60 0.60 3.00 3.00 � M � i � � W J O W 0.50 � 0.50 1.00 1.00 1.00 1.00 � � I 0.40 � 0.40 2.00 2.00 � � � I � 0.30 �. 0.30 � _ � � 020 , 020 - - 1.00 1.00 � _ F 0.10 , 0.10 � w � 0.00 0 2 4 6 8 10 12 14 1�6 18 20 22 24 26 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0.00 U � Q Time(hrs) Time(hrs) Time(hrs) Time(hrs) z - Hyd No.4 - H d No.5 - H d No.3 - H d No.4 - Hyd No.5 - Hyd No.3 - Hyd No.4 - Hyd No.5 - Hyd No.3 - Hyd No.4 � in DATE > � OS/10/2021 P nd No. 1 - Swale Stora e � � Hytlre�owHytlmgrepM1SEatenslanforputotlesk^cCivilpOffJ20196yHu[otlesk.Inc.Y2020 } DRAWN BY / / roaa�oo�e scaqe(n) Stage/Discharge Eiev(h� scaqe(n) Stage/Storage eiev(a� EIev.5t9D0 � �1� eport 2.°o sis.�o z.ao sis.�o DESIGNED BY Front View Hydraflow Hydmgraphs E�ension for AutodeskOO Civil 3Dail 2019 by AWodesk.Inc.v2020 Monday,05/10/2021 1.80 519.50 1.80 519.50 •• AM NTS-LookingDownsiream CHECKED BY Pond No.1 - Swale Storage • �oo Pond Data 1.60 519.30 1.60 519.30 Pontl storage is basetl on userdefinetl values. : • �'S StagelStorage Table �.4o sis�o i.ao s�s�o SCALE Stage(k) Elevation(ft) Contour area(sqft) Incc Slorage(ack) Total sforage(ack) aoirauo:as�n oao� 0.00 51770 n/a 0.000 0.000 �20 518.90 120 518.90 • 1^-20' � ama-m�.aizio 030 518.00 n/a 0.00� 0.00� 1.30 519.00 n/a 0.024 0.025 • 1.0� 518.70 1.00 518.70 Culvert I Orifice Structures Weir Structures • +aoo n e�oaa�,��ea.re�� � we�,n-eie�.siesa �A] [B] [C] [PrfRsr] [A] [B] [C] [D] 0.80 518.50 0.80 518.50 � Rise(in) = 3.00 0.00 0.00 0.00 Crest Len(ft) = 12�0 Inactive 0.00 0.00 Span(in) = 4.50 0.00 0.00 0.00 Crest EI.(k) = 518.50 0.00 0.00 0.00 0.60 518.30 0.60 518.30 � No.Barrels = 1 0 0 0 WeirCoeff. = 3.33 2.60 3.33 3.33 InvertEL(fl) = 51770 0.00 0.00 0.00 WeirType = Broad Broad - -- 0.40 518.10 040 518.10 000 Length�ft) = 0.00 0.00 0.00 0.00 MWtiStage = No No No No O &aye�ni � eono�,orpo�a Slape(%) = 0.00 0.00 0.00 n/a eie�.sn.�o N-Value = .013 .Ot3 .013 n/a 020 517.90 020 517.90 O c -iao y� Orifice Coeff. = 0.60 0.60 0.60 0.60 E�L�iNhr) = 0.0�0(by Welarea) � -�o-y' Multi-Stage = nla No No No TW Elev.(ft) = 0.00 0.00 51770 0.00 51770 a � -ayr 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 0.000 Q�03 0.005 0.008 OA10 0.013 O.Ot5 0.018 OA20 0.023 0.025 � z 'y r�o�e:amemonn�eo�mowsa�aa�aiyieo��oer��ma�iiqa�oo�ua�ioo��o�wi_we�rns�rs�neaeemrona�a�o�anior.sp��a�esuomarqe�ce(s). H � _��,� Discharge(cfs) Storage(acR) � (� o -To�al Q �S�orage � � Inflow�y0ro3rap�=SComOine�CombinepPmposeEFlowloVartllnlel /� fy � Prqect Swale Srorage Routings.gpw Monday,05/10/2�21 � / � � o �/ / i m � } � OUTFLOW HYDROGRAPHS OF SWALE ROUTINGS J o � a Hydrograph Report Hydrograph Report Hydrograph Report Hydrograph Report U J O ' 0 HydraflowHydrographsEMensionforAutotlesk�Civi13D�20t9byAutotlesk,Inc.v2020 Monday,05/10/2021 HydraflowHydrographsE#ensionforAutotlesk�Civi13D�20t9byAutotlesk,Inc.v2020 Monday,05/10/2021 HydraflowHydrographsEMensionforAutotlesk�Civi13D�20t9byAutotlesk,Inc.v2020 Monday,05/10/2021 HydraflowHydrographsEMensionforAutotlesk�Civi13D�20t9byAutotlesk,Inc.v2020 Monday,05/10/2021 � a Fi � a � aN Hyd. No. 7 Hyd. No. 7 Hyd. No. 7 Hyd. No. 7 w � Swale Storage Routing Swale Storage Routing Swale Storage Routing Swale Storage Routing J m J � Hydrograph type = Reservoir Peak discharge = 0.367 cfs Hydrograph type = Reservoir Peak discharge = 1.592 cfs Hydrograph type = Reservoir Peak discharge = 4.470 cfs Hydrograph type = Reservoir Peak discharge = 10.52 cfs � a � „ Storm frequency = 1 yrs Time to peak = 12.20 hrs Storm frequency = 2 yrs Time to peak = 12.03 hrs Storm frequency = 10 yrs Time to peak = 11.97 hrs Storm frequency = 100 yrs Time to peak = 11.97 hrs U J � Time interval = 2 min Hyd. volume = 0.074 acft Time interval = 2 min Hyd. volume = 0.115 acft Time interval = 2 min Hyd. volume = 0.268 acft Time interval = 2 min Hyd. volume = 0.621 acft Inflow hyd. No. = 5 -Combined Proposed Flow td1�f�rfflerlelion = 518.49 ft Inflow hyd. No. = 5 -Combined Proposed Flow tdl�f�rffl�rJetion = 518.60 ft Inflow hyd. No. = 5 -Combined Proposed Flow td1�f�rfflerlelion = 518.72 ft Inflow hyd. No. = 5 -Combined Proposed Flow td1M�rffl�erletion = 518.91 ft a' Q a Reservoir name = Swale Storage Max. Storage = 0.013 acft Reservoir name = Swale Storage Max. Storage = 0.015 acft Reservoir name = Swale Storage Max. Storage = 0.018 acft Reservoir name = Swale Storage Max. Storage = 0.023 acft O � (� ` � � � � 0 Storege Indication mefhod used. Storege Indication mefhod used. Storege Indication mefhod used. Storege Indication mefhod used. � L � J W c O � Da O �' � � = Q � o o � � � � � �� �, Z � � a0 � � Swale Storage Routing Swale Storage Routing Swale Storage Routing Swale Storage Routing = m � ;,� Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) Q(cfs) � � o Hyd. No.7--1 Year Hyd. No.7--2 Year Hyd. No.7-- 10 Year Hyd. No.7--100 Year a O D c 2.00 2.00 2.00 2.00 5.00 5.00 12.00 12.00 O � � � c d o Jz � o � � � 0 � 3 io.00 io.00 �J U z „ 4.00 4.00 � � � w O � J � �' U � � � � � a o � s.00 s.00 H w �o a� 3.00 3.00 � m a�3 m a ; y 1.00 1.00 1.00 1.00 6.00 6.00 O � N uxi o Y � 2.00 2.00 � 2 d N � C I 4.00 4.00 " � � a I � o � c o � 1.00 1.00 - D � � 2.00 2.00 � D t0 'n � JOB N0. y c N � N V 4694.005 = = o.00 o.00 o.00 o.00 o.00 o.00 o.00 o.00 y � 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0 2 4 6 8 '10 12 14 16 18 20 22 24 26 SHEET NO. � � Time(hrs) Time(hrs) Time(hrs) Time(hrs) �� - Hyd No.7 - Hyd No.5 � . _._. Total storage used=0.013 acft - Hyd No.7 - Hyd No.5 � . _._. Total storage used=0.015 acft - Hyd No.7 - Hyd No.5 � . _._. Total storage used=0.018 acft - Hyd No.7 - Hyd No.5 �. _._. Total storage used=0.023 acft C6.2 a�i =' � �