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HomeMy WebLinkAboutWPO202200042 Plan - VSMP 2023-03-06BELVEDERE PHASE 3 BLOCK 10 TMP 62A3 PARCEL 1 B VSMP (TREE REMOVAL ONLY) PLAN WPO#202200042 RIO MAGISTERIAL DISTRICT, COUNTY OF ALBEMARLE, VA SITE DATA OWNER/DEVELOPER : GREENWOOD HOMES LLC 455 SECOND ST SE SUITE 201 CHARLOTTESVILLE, VA 22902 PLAN PREPARER: ROUDABUSH, GALE, & ASSOCIATES 999 SECOND STREET CHARLOTTESVILLE, VA. 22902 (434)-977-0205 TAX MAP PARCEL No: 062A3-00-00-001 BO PARCEL AREA: 95.753 ACRES (GWAY BLA DB 5294-417) ZMA PHASING: PHASE III - "BLOCK 10" ZONING: NEIGHBORHOOD MODEL DISTRICT (NMD) PER ZMA-2004-0007 WITH BELVEDERE CODE OF DEVELOPMENT, AS LAST REVISED ON JULY 22, 2014. CURRENT USE: VACANT PROPOSED USE: 2 EXISTING TOWNHOMES FROM PHASE IV-2 26 TOWNHOMES (PROPOSED WITH BELVEDERE PHASE 3 BLOCK 10-A FINAL SITE PLAN SDP2019-79, "LOT A-G FUTURE DEVELOPMENT') 14 TOWNHOMES (FUTURE SITE PLAN - "LOT H & I FUTURE DEVELOPMENT") 27 SINGLE FAMILY DETACHED (THIS PLAN - ROAD PLAN) 69 TOTAL LOTS MAGISTERIAL DISTRICT: RIO MAGISTERIAL DISTRICT CRITICAL SLOPES: PRESERVED & MANAGED SLOPES PER ALBEMARLE COUNTY GIS. CONSERVATION & PRESERVATION AREAS PER ZMA WATERSHED: SOUTH FORK RIVANNA (BELOW RESERVOIR) BOUNDARY SOURCE: PLAT"DIVISION OF DUNLORA" PREPARED BY WM. MORRIS FOSTER, LAND SURVEYOR, DATED NOVEMBER 1, 1985, REVISED DECEMBER 20, 1985, RECORDED AT DB 875 PG 331. ROUDABUSH, GALE & ASSOCIATES 2020, DB5294-417, & DB5289-658. TOPOGRAPHY: BARE EARTH DEM FROM LiDAR, SOURCE VGIN (2016). POINT CLOUD FILTERED BY RGA, FEBRUARY 2021. BENCHMARK: PK NAIL SET IN SIDEWALK AT THE CORNER OF BELVEDERE BLVD AND FOWLER STREET. ELEV = 476.50 DATUM HORZ: NAVD 83; VERT: NAVD 88 FLOODPLAIN THIS PROJECT IS PARTIALLY LOCATED WITHIN "ZONE X" AND PARTIALLY LOCATED "ZONE AE" AS SHOWN ON FLOOD INSURANCE RATE MAP. COMMUNITY PANEL NUMBER 510003C 0279 D. EFFECTIVE DATE:FEBRUARY 4. 2005. STREAM BUFFER: THE 100' STREAM BUFFER IS LOCATED ON TMP 62-2C WHICH IS WITHIN THE "BLOCK 10" AREA. TOTAL DISTURBED AREA: 19.18 AC (TREE REMOVAL ONLY) FOREST/OPENS SPACE/BMP's: 6.9 ACRES DEDICATED TO DEQ PRESERVATION EASEMENT (DB 5277 PG 305) HUC NUMBER: 02080204 NOTE: PLAN IS REFERENCED BY AND ASSOCIATED WITH FDP 202300003 VICINITY MAP SCALE: 1 "=1000 FEET STORMWATER MANAGEMENT COMPLIANCE NARRATIVE THE DEVELOPMENT OF BELVEDERE BLOCK 10 WILL OCCUR IN TWO PHASES OF CONSTRUCTION. THE COMPLETED PROJECT WILL UTILIZE SHEET FLOW DISCHARGE TO FACILITATE CHANNEL AND FLOOD PROTECTION. STORMWATER RUNOFF WILL BE COLLECTED AND CONVEYED AS SHEET FLOW. 9VA25-870-63 WATER QUALITY DESIGN CRITERIA REQUIREMENTS - THE PROJECT SATISFIES THE REQUIRED REDUCTION OF ITS ANNUAL PHOSPHORUS LOAD THROUGH THE PRESERVATION OF FOREST/OPEN SPACE TO OFFSET INCREASE IN PHOSPHORUS LOADING. 6.9 ACRES OF ON -SITE DEQ PRESERVATION EASEMENT (DB 5277 PG 305) IS ALREADY IN PLATTED EASEMENT TOWARDS THIS PURPOSE. 9VA25-870-66.D REQUIREMENTS - THE PROJECT SATISFIES WATER QUANTITY REQUIREMENTS THROUGH THE RELEASE OF ALL FLOW FROM THE SITE AS UNCONCENTRATED SHEET FLOW. MULCHING AREAS WHEREVER TREES ARE REMOVED CREATES A POST -DEVELOPED CONDITION ON -SITE THAT RELEASES LESS FLOW THAT THE PRE -DEVELOPED CONDITION. SEE DETAILED DISCUSSION ON SHEET 5 OF THESE PLANS. EROSION AND SEDIMENT CONTROL NARRATIVE THE EROSION AND SEDIMENT CONTROL IMPROVEMENTS CAN ADEQUATELY CONTROL EROSION AND OFFSITE SEDIMENTATION USING DUST CONTROLS, A CONSTRUCTION ENTRANCE, SILT FENCE, AND TREE PROTECTION. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OF PUBLIC ROAD SURFACE, THE ROAD SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS 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. CONTRACTOR SHALL MAKE PROVISIONS TO KEEP ADJACENT ROADS CLEAN FROM SOIL BUILD-UP. TEMPORARY SILT FENCE SHALL BE APPLIED TO CLEARED AREAS WITHIN THE LIMITS OF TREE REMOVAL AFTER TREE REMOVAL HAS OCCURRED ON ANY PORTION OF THE SITE. CONTRACTOR SHALL ESTABLISH A STABILIZED SITE, AND NOT ALLOW ANY EROSION OR SEDIMENT TO EXIT. APPROVED by the Albemarle County Community Development Department Date 03/09/2023 File WP0202200042 Sheet List Table Sheet Number Sheet Title COVER SHEET 2 SOILS & EXISTING CONDITION PLAN 3 E & SC PLAN - TREE REMOVAL ONLY 4 SEEDING & STABILIZATION NOTES 5 EROSION & SEDIMENT CONTROL DETAILS g EROSION & SEDIMENT CONTROL DETAILS U w �wZ a U o� U z ZQ pw � x "z mcga3 C%] 0> a 00 m U �a 0 x DRAFTER: AGF DESIGNER I AGF PRODUCTION: ZQD IL. Taggart Lic. No. 22841 03/06/23 'f ONAL O T Ug O; J ~ Co z 0 W = LIJ J c r' 0 LU LLJ > 0 r) W LU L1J LU LU J MLIJ W DATE: 2/21 /23 SCAL 1" : 100 ' WPO 18438 FILE: 8438 SHEET: 1 OF 6 �• 62,2E 1fN ••• l l _ / / /� / ��/ /� / //// i �- = �� \\\\ \ \\ 4° '18"E / i ��� \ _ 1MELJEGSR G2,0i1P� •,• ) PRESERVATION J / / \// ,�• f OP N Vp1N E EN1 • f- EASEMENT (TYP) % • B• Rk GRE / / I '-� .�- � � / / / � `y'/ --� /��� /� ---- — ///���� — _� � �\\\\\\\ \ ��/��E�'\ y-' � % /ice / � R • ZON",1 V6 P / / \ /_ / / / / / /' 2g AND / I % / • ,� ,� / i /�/ �_—i— _—_ �i i� —_ \ \ \ \\ \\�-- i s \ j P O� \\, \ • . � 0. ' 1-p1n62�REt�' 2) / I ��( •-� /��\ /��—� � ` � � �/ '�i � � — �\ \='�,��� � � � / /� �� // /� .;-,� P` �\� � \\ \ : •••• / / /\ // // /� /� �\ // S�0'pEf Jil fl �/ �� /ice\ /�' I �� / l ••_ — �y� / / \ I I II I III 1 / \ ii/ /�,�• �� / / / ��� r/ ���- _ _��� II •.---��,! II �� IIII 111 I II I\���//��„ ��:: �\�\�\�\ I \�\\ J \ \� /• _ —j �' \ I T �/ �• / ALBEMARLE COUNTY •• \ 1 I I I I I I 111 / /�� •�•/��� �•• ' \� �\ \\ \ \\ C �� /• \ •• / PRESERVED SLOPES _ f^(TYP) ••. '` : \ _ \\� 1 �J %'r \ J _ _ — — \• \ 1 1 111 =�4,2� '• \\ _ — — — — �i�/ter/ .� , \ i•\ \\ .ice � \ iI � 11 �1 .— / ' f �/_ �_ • \ • P " / � 1 / / / / ��� � r —•- � \ \ • •�` � � (1 � \ • / / / —� � � � l � ` / lc i 1\�� \\� /• • • " —`- --\ 1 1 1 �'=R00 = a . •�' 1 r �l)V � � �7-� l � \ � `�/ � � ` � � l \/ / � ;5 � \ / / / � / � � \ \ N 04 \ iv�l TMP 6A-E 1 \ N F NEW BELVEDERE INC �-� f D� ALBEMARLE COUNTY 9 1 1 / 51 3 PC 462 / / J j/ v� / \ ` / / // \\ / • / / \ \ \ 1� 1 I\\ \ �/ /// / • • / PRESERVED SLOPES I / / �S� / / \ \ / .• (TYP) J l I NMD ZONING LNL \\ \\\� \\\ �\ \\�j///�f•' \' \ /�f / /NEW BELVEDERE, INC • � � \ / � % l l / i / r i _ TMP 62A3-1 • \ \ ./ • ? •� \ \ /// j //%��// / �/ VACANT % • .� 0.4 \ '�' 1434- _ � ZONING: NMD � : ) \ � \ � \ ~ ._ � � % •rl � 1 % / � � � /\� / — ..'• • • ...�. • . •'\ \ - —' / 90.78 ACRES ` \ 1 \ \� \ ' / ' / (TYP) — \ / -� `i J 438 J \ \ \ / / EXISTING TREELINE TYP � \ � / ��• : ,�• •<�-- � /\� z440 `� � � i r -�. � � •� \ \ \ \ \ \ � ✓ / r � �t (' I ( l / / / `/ / /// i j \\ �\ \ / f • r I S -' -442 — ••\ \ \ \ \ \\ \ \ \ _ l / f : PROPOSED SECONDARY ACCESS LOCATION / 444 / / _� \ \ 0� \ \ \ \ AZMA REA • 1) I 111 \ 111�'�711r •� u • \ o AG -438 Flo \\ / • / / / / / ✓ r"^ /r / / • \ \ \ \ \ \ \ \ �/ L• l l 1 ` \ << �/ vr ZMA CONSERVATION '�•\ \ \ l 1 / ��1 //J II 3 P9 \\\\ 1 \ \ •� - EXISTING SECONDARY ACCESS / / / — r AREA (TYP) \ \ ••, ,,•��;g 92� \\ \\\\\\\\ 000 ROAD FROM BELVEDERE PHASE 5 / / I \ •� • • • • • / / 140�98 6, \ PROPERTY LINE \ • • — TO BE RELOCATED J HIS PLC �- / S rs� _i434 if / `• \ \ 1 •• L� •� D / (/ / (/ o µo d _ \\\ \ \\ \\\ \\zoo 00 TMP62G-07-246 & TMP62G-07-245 \� �� •�•' �'J• �� �� > �' / ( •• ` �- \ \ \ \\\\ \\ \\\ ARE EXISTING LOTS TO BE BUILT WITH \ r t ° - • • \ • I \ \ \ \\ \\ \\ \ ,BELVEDERE PHASE IV-2. THESE TWO i e ✓� • ^. % / l � \ ` � • \ \ \ \ \\ �e �� • LOT ARE INCLUDED IN THE DENSITY \ �^ Z�B G / p p1•, r,--- \ ! j �• \ \ • �� ��/ \� \ \ \ 1 \\ 1\ 1� CALCULATIONS FOR BLOCK 10 • • / I •�430 \ \ '•� — \ 1 \ 1 / �\ / \ \ r. l •�• 1 , ( • \ \ — 434- '00000 1 I I1�1\ PROPOSED WATERLINE CONNECTION POINT ` '� �-- � � r�' �� • � , • � •'' —` n .-� � � 2'rG � �•� \ Zr \ ,6� �\•• \ \ \ � �r .-� r \ \ \ I , �, / \\ r = \ _Go „ \ �So��� i \ \••• . �, 1 •• \ \ \ \ � $ —� C� t :.; ••. 1'•s (I 1 111\I \ (\ 1} S • / / i• • �• • ` �j , \ \\� o� ' • • \ \ 440 • / \ ` :- : • • / / --i • • • • • t I I \ 1 I \\ \ ` ` ALBEMARLE COUNTY • \ • ! y ( / \ ) 0 l 1 \ ` MANAGED SLOPES _ �• ~ -43 � ~ ••� '/ •1 1 \� \ 1 / ' / _ �Q� ZMA CONSERVATION \ I o \ , \ 1 ( ) •y, 8 ) \ t S l \ \ • / • "Ore �f _ _ AREA (TYP) •1 \ \ I ( TYP \ ••`4:6� /�♦�•� / / I/ �'•`•� \ i / / � ✓ i r I \ ,\ • 1 I ( n ` 434•-• • •� \ \ / \ \ / / ' • \ r I 1 1 ' • \ — 432- \ �\ \ �\ \\ •� �• �} I I I ' EXISTING CURB, GUTTER, & � � \\ • � � 1 \\ / L • \ �- �.,: J ,Y � � � �" �• / I I I�' ` SIDEWALK TO BE REMOVED & \ FRS \�% `COI \\ / \ 10 BE 1 ( \ U,gt \ 430 / \ // \ ��� °\ / r • , \ • / I / I J tir • • REBUILT PER THIS PLAN \'� . \ (R EQ 6 d d 5 ;' -\ I \ / ` f/ / /� / �r '-� • •� ; : / I (' (f l J (• 1 LEGEND �• \ 1�I I\�\ rf���� r��\ // /�� > 1�\�\� ���i \_- ���-��001 ...: �. ,\\\ \ 1 I / �a2y�r�� / 1 ALBEMARLE COUNTY r SOILS INFORMATION: \ ��� PRESERVATION EASEMENT �rll �� mil\ ` \\ \� l J ` j \\\ \ \ �Zc'� PRESERVED SLOPES L< DB. 5277 PG 305 / ` \� . to » F s>> )� \ \ \ \ I \ i \ \ \ / / (TYP) / v ✓ ti \\ \ \ / / L / 27B: ELIOAK LOAM, 2 TO 7 PERCENT SLOPES, �(` \ • \\ 1 1 ) !� S� �-� \ �� / MORE THAN 80 INCHES TO RESTRICTIVE \ / \ \� \\^ \ \ \ \ I I 1 1 w \\ -� \ / / 1 \ \ /\/ / f Y \` \ \ T /Q�d/ I ( • ALBEMARLE COUNTY STEEP FEATURES, WELL DRAINED, HYDROLOGIC i \ \� " \ 1 \ \ 1 \ \ \ I r \ \ / / �/ ` I ( \ \ / J 1 `� \ \ l \� i/ M ly // •� • GROUP B. / '.:\ SLOPES OVERLAY -MANAGED / 27C: ELIOAK LOAM 7 TO 15 PERCENT SLOPES MORE THAN 80 INCHES TO RESTRICTIVE ALBEMARLE COUNTY STEEP FEATURES, WELL DRAINED, HYDROLOGIC FOWLER STREET TO BELVEDERE \k\ / \ \\, \\ \ \� \ ` `` / ` / l // ` \ ✓` 1 — / SLOPES OVERLAY- PRESERVED GROUP B. PHASE 5A DEVELOPMENT. �� \\ \ < \ �- \ \ 1 \\ t \ r -1 /SUB-2019-00170 \ \ \\ iMP 6 �6D ✓ = Y \ •� \ N/F BELVEDERE LAND HOLDINGS LLC f \\_\�\ �\ w / ✓// — 39D: HAZEL LOAM, 15 TO 25 PERCENT SLOPES, / / / \ \\ • B ,088 PG 6 5 ZMA CONSERVATION AREA 20-40 INCHES TO RESTRICTIVE FEATURES, I :I I -/ \\ , \ / \ \�\\� �\ EXCESSIVELY DRAINED HYDROLOGIC GROUP B. �\ / \,;•\ • • � \\ \\ \EXISTING SANITARY SEWER —390 I I \\ \ • \ \\ \\ \\ \\ \� ss¢S. T �� /�/ // / (SEE "BELVEDERE PHASE 5B 40E: HAZEL LOAM, 24 TO 45 PERCENT SLOPES, • • • \ / J r • \ \\\\\\\\\\ \\ \�. 3 y C\ i / g0 OFF -SITE SANITARY SEWER") ZMA PRESERVATION AREA MORE THAN 80 INCHES TO RESTRICTIVE I • •\ \\\ \\� �� �_ / _� �- — �380 FEATURES, EXCESSIVELY DRAINED, I , \ •\'_ \ • // �• \\\\ \ \\ \ \ _ / / // HYDROLOGIC GROUP B. I I • \ • \\ \: /\ " . r� •s \� \ • \ \ \ \\ \\\\ \� �� ALBEMARLE COUNTY\ PRESERVED SLOPES BTL: BUILD -TO -LINE '\� \/ , \ / \ \ \\\\\\\\\ (TYP) OS: OPEN SPACE 50 0 50 100 150a \ �� /� • \'�, �� \ / � •• Y \ \\ \\ \\\~ \Z\\\\\�\\ \\ \\'�\ � �'^ ` \�\ \ \/ � \\ f 8�) r/-�Sc /`' �� >� \ • \� % / • • , \ \ \\ \\\\\ \ \ \\\ \ \�\ \ �_�~\\ \ \ / �/ /J ` \� /�/ SCALE: V=50' \ Uz 1�1 0 z C4 11 N t!"ffjll. Q � °Cw d N80 Z � Q 88 W -jQ �r`JIJ• Z C3' c) a � W x coL (L �z a 1� d W U �a co x z O rr co o�� `n W W g > co 00 00 } 00 00 Y LL LL mQQ W M fM HpN N NCse M (M i0z 11- N I-L PyT/ii Op `f�c Jimmy L. Taggart Lic. N0. 22841 Q� 9870NAL �� 03 T z �z g Ug z O O J z O Z _J U W cr o z W W Q CE X LLJ W LJ LLJ ICE06 F_ � —.1J 0 mW W DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD DATE: 21 23 SCALE: 1" = 50' WPO: 8438 FILE: 8438 SHEET: 2 OF 6 I � 0 pow mnsmr MINI '=Mmwft_1I�Lc MU F m1b G.A ■ FG NOTES: 1. TREES >3" DIA AT CHEST HEIGHT MAY NOT BE CUT, APR 1- NOV 14, OF ANY YEAR (TOYR), PER ESA SECTION 7 SPECIES -SPECIFIC PROTECTIONS FOR THE NORTHERN LONG EARED BAT (NILES), PENDING FURTHER USFWS GUIDANCE. 2. ALBEMARLE REQUIRES MULCH COVER FROM CHIPPING LIMBS ON -SITE FOR ANY AREA LOGGED ,AND REQUIRES MULCH GROUND COVER FOR 50' (MIN.) WIDTH UPSLOPE OF ANY TREE PROTECTION FENCING, AND UPSLOPE OF ANY LIMIT OF TREE -CLEARING. 3. COUNTY ESC INSPECTOR MAY DIRECT PLACEMENT OF ADDITIONAL ESC MEASURES NOT SHOWN IF DEEMED NECESSARY TO CONTROL OR LIMIT EROSION AND OFF -SITE SEDIMENT TRANSPORT DURING OR AFTER TREE -CLEARING. 4. NO CUTTING OF TREES IS PERMISSIBLE WITHIN JURISDICTIONAL WETLAND AREAS WITHOUT U.S. ARMY CORPS OF ENGINEERS APPROVAL. JURISDICTIONAL WETLAND AREAS ARE IDENTIFIED, AND LABELED. 5. SILT FENCE IS NOT REQUIRED AS A PRELIMINARY ESC CONTROL MEASURE, UNLESS REQUESTED BY COUNTY ESC INSPECTOR. 6. TREE PROTECTION IS A REQUIRED PRELIMINARY PERIMETER ESC CONTROL MEASURE - LAND CLEARING DELINEATION MEASURE. 7. TREE PROTECTION MEASURES ARE TO BE MAINTAINED THROUGHOUT THE COURSE OF THE PROJECT AND ARE TO BE REPLACED IF DAMAGED. 8. DURING NLEB TIME OF YEAR RESTRICTION, PRIOR TO CUTTING ANY TREES, OPERATOR SHALL EXAMINE FOR POTENTIAL BAT HABITAT DAILY AND PRIOR TO EXPANDING TREE CLEARING INTO ANY NEW AREAS. (IE. LIVING TREES OR SNAGS GREATER OR EQUAL TO 3 INCHES IN DIAMETER AT BREAST HEIGHT THAT HAVE EXFOLIATING BARK, CRACKS, CREVICES, OR CAVITIES), AS WELL AS FORESTED LINEAR FEATURES SUCH AS WOODED FENCE -ROWS, RIPARIAN FORESTS, AND OTHER WOODED CORRIDORS. WHEN/IF 1. \\ _ TP r -- TS >\CR \� - ��� �_ �J� TS MU \ - 1 I ,- ` WOOD CHIP MULCH & 1 I I . J . ^ .�. jj/ TEMPORARY SEEDING l I / /// / , i —408 - µl �N 1� 410 ,4 ° ;...... / SHALL BE INSTALLED ON 1 `...� //�// ��-\MU 4Q, f M U TS CONCRETE WASH -OUT AREA r, — — J 44 M U TS ALL AREAS WITHIN LIMITSTS OF CLEARING.Iri TP SET-UP AREA FOR TREE REMOVAL ...., 4 -- -434 \ \ \ \ TS M U OPERATIONS � �-�--•--� � ) FUEL STATION l DUMPSTER ' ✓ .,��� �-� f� - ,•; l WOOD CHIP MULCH & DC } : y, j....::: \ PORTA-POTTY '.. :.::::...... \ \ \ TEMPORARY SEEDING I NOTE: THE TREE PROTECTION/LIMITS 1 \ \ \ \ SPILL CONTAINMENT AREA i I:: ::.�: �\ \\ \ SHALL BE INSTALLED ON ,� . OF CLEARING SHOWN HERE ��--� ., � --� � � � � � � � I ............. \ CR �\ ALL AREAS WITHIN LIMITS 1 I TREE CLEARING ONLY. / / WASH RACK & EQUIPMENT/VEHICLE \\ �r-- REPRESENTS THE AGREED -UPON LIMIT ) \ MULCH ALL AREAS WITHIN f// WASHING Soso\..\ CONSTRUCTION TRAILER OF CLEARING. — APPROVED BY THE COUNTY TO I I EROSION CONTROL PLAN LEGEND 3.02 NTRANCE TI N CE ROAD STABILIIZATION CRS cas SILT FENCE SF 3.1 PROTECTION TLET MOP 3.31 TEMPORARY SEEDING TS —Ts— MULCHING MU AND PROTECTION N TP 3.3 DUST CONTROL DC —Oc— & TREE REMOVAL `REFERENCE THE LATEST VERSION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESCH) FOR DETAILS REGARDING INDIVIDUAL CONTROL MEASURES. \ TS s \<, REPRESENT THE ZONING MAP \ — : AMENDMENT. .:.:� �\ O 9? \ ........... �-- I TR L TO B E`4 l � l \ � \��� •. �\ ELO ACTED ! S ) J / \ \�440�� / \\ I \ ~ ~ y 30` \ \ \\ TS \ \:, I \ l:: \.......... 1 \ ....... \o.' \ r f \� 430� / O \ \\ s //// \`1 Jf , DC \\ 1 I I 1 SF TS `::::/ ,' \ ) �l J }...I.( t MU WOOD CHIP MULCH & %/ // .:✓ / \ \\ ...... t i ( / ... �� \ �� TEMPORARY SEEDING T MU .....� .. . ^ �� \ TS SHALL BE INSTALLED ON J S f \\ 1 1 (I / f LIMITS OF TREE CLEARING 'f \ \ -tr �1� \ . \:::1::::..., :,.� \ \\ , �1 1 \ \ MU ALL AREAS WITHIN LIMITS ,_ 10 I Q or'R�c, IVW ENCOUNTERED, IMMEDIATELY CONTACT OPERATOR \;\ C \ \\ \\ \l �\ . \`. . ) . . /� O F CLEARING. / = �- --� �� l �-- LISTED IN REGISTRATION. l J 9. THERE SHALL BE NO GRADING, GRUBBING, OR TREE \ \ I ROOT REMOVAL AND ALL STUMPS SHALL BE LEFT 2-3 FEET ABOVE EXISTING GRADE. EVERY ATTEMPT SHALL BE MADE TO PRESERVE THE UNDERSTORY TREES AND VEGETATION DURING TREE HARVESTING OPERATIONS. 10. MULCHING SHALL ALSO BE IMPLEMENTED TO MINIMIZE THE OFFSITE TRANSPORT OF TREE HARVESTING BY-PRODUCT. 11. INSTALLATION, INSPECTION AND MAINTENANCE OF THESE MEASURES SHALL OCCUR BI-WEEKLY AND AFTER EACH RAINFALL EVENT TO ENSURE THEIR FUNCTIONALITY. 12. CRITICAL SLOPES TO BE FENCED OFF PRIOR TO STARTING CONSTRUCTION. PROPOSED PRELIMINARY LIMITS OF TREE HARVEST AREA ARE CONCURRENT WITH, AND DO NOT ENCROACH INTO THE CRITICAL SLOPES. 13. TREE PROTECTION SHALL BE IMPLEMENTED ON UPHILL SLOPES WHERE APPLICABLE OR AS DIRECTED TO PRESERVE STANDS OF TREES THAT SHALL REMAIN. 14. PRESERVED STEEP SLOPES (>25%) TO BE MARKED IN THE FIELD BY CONTRACTOR PRIOR TO LAND DISTURBANCE. 15. FIELD MARKERS DELINEATING PRESERVED STEEP SLOPES ARE TO BE MAINTAINED THROUGHOUT THE COURSE OF THE PROJECT AND ARE TO BE REPLACED IF DAMAGED. 16. NO PERMANENT OR TEMPORARY DISTURBANCE OF PRESERVED STEEP SLOPES IS PERMISSIBLE. 17. TOTAL TREE HARVEST AREA = 19.18 ACRES. 18. LARGE MATURE TREES SHALL BE TIMBER -HARVESTED AND SHIPPED TO THE SAW -MILL FOR USE. SF TP 1 1 V 1 I co �• •ice a 1. � ! �• \ 1 l 2 • � s / lI 0 INSET: SEE ABOVE O \ DAM BREAK INUNDATION ZONE TS r�������:.���1`F�►���%a1e�...7.G.It3'a�`i�e?�6�7✓ie��9�Jo`I��w�L?" �' i 1 7U A O G, z O N D_U (n N NO _j Q Cl -j d m z (U LD °> uz° LL < � �z a > x o w U �a z co rr co o�� cf' w w co co 00 � UU 00 >LLU_ mQQ w M fM � N N p C4CEO M M 0 � N I PyT H O+++p/Dt��21 Jimmy L. Taggart Uc. No. 22841 44 09/08/29 ESSI ONAL ECG O J Z Ug o O % J J O O or L1J > w cr O W � z Q LLJ L1J W \ U W J 06 LL.I W m 3 DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD DATE: 2 21 23 SCALE: 1" = 50' WPO: 8438 FILE: 8438 SHEET: Erosion & Sediment Control Technical Bulletin No. 4 Nutrient Management for Development Sites ESTABLISHMENT OF VEGETATIVE COVER Developing a fertile soil is a crucial step in the establishment of vegetation, which can reduce the amount of fertilizer required to maintain good vegetative cover. A fertile soil has the capacity to supply the nutritional needs of the plants being established. Good soil quality characteristics include good soil texture, adequate nutrients available for plant growth, good moisture holding capacity, and the appropriate soil acidity/alkalinity balance (pH). The following is a discussion of the steps needed to ensure good vegetative growth. 1. Soil Tests Soil tests are extremely important and should be conducted on every site. Soil tests provide specific information on the amounts of phosphorus, potassium, calcium and magnesium available for plant uptake and recommends additional amounts as required. Soil tests are crucial for determining the amount of lime needed to obtain an appropriate soil pH for the vegetation being established. Soil test results include recommendations specific to the site and vegetation being grown. Soil tests recommend the amount of plant nutrients and lime needed to promote and maintain good plant growth. Soil tests may be performed by the Cooperative Extension Service Soil Testing Laboratory at VPI & SU, or by a reputable commercial laboratory. Also note that County Extension offices have soil testing supplies and information. Soil tests are not used to determine nitrogen needs. Nitrogen is applied based upon established requirements for the plant to be grown, season of growth, and intended use. 2. Surface Roughening Provide a rough soil surface by stair -step grading, grooving, or tracking the soil to be vegetated or by leaving slopes in a roughened condition by not fine -grading, in accordance with the 1992 Virginia Erosion & Sediment Control Handbook (Std & Spec 3.29). Seed germination is difficult with compacted soils. Rough, loose soil surfaces helps prevent the loss of lime and fertilizer due to runoff, increases water infiltration, and provides seed coverage, which aids in seed germination. 3. Soil Amendments & Soil Quality Materials such as sand, vermiculite, peat, and compost may be added to soil to modify texture, improve structure and increase the moisture holding capacity. It is also recommended to conserve existing soil quality by preserving and reapplying topsoil in accordance with the 1992 Virginia Erosion & Sediment Control Handbook (Std & Spec 3.30). Areas that have been compacted, or where duff or underlying topsoil is removed, should be amended with compost to improve soil quality. 4. Lime Adjusting the soil pH between 6.25 to 6.5 is extremely important for grass establishment, especially in the acidic soils of Virginia. A soil test is necessary to determine the actual amount of lime required to adjust the soil pH of denuded sites. However, when a soil test has not been performed, apply 2-tons/acre (90 pounds per 1,000 square feet) of pulverized agricultural grade limestone. Revised 7/17/03 Page 2 of 8 Erosion & Sediment Control Technical Bulletin No. 4 Nutrient Management for Development Sites 5. Fertilizer Never apply more than 1 pound of water soluble nitrogen per 1,000 square feet within a 30 day ep riod. Nitrogen should be applied based upon established requirements of the plant to be grown, season of growth, and intended use. Establishing a uniform dense vegetative cover with a good root system reduces the potential for pollution by decreasing erosion and runoff, increasing the plants ability for nutrient uptake, and reducing pesticide use. A detailed discussion on fertilizer use is provided in the `Updated Fertilizer Specifications and Rates for Establishment' section of this bulletin. 6. Incorporation Incorporate the lime and fertilizer into the top 4 - 6 inches of the soil by discing or by other means. Incorporation reduces the potential nutrient loss due to runoff, as well as significantly increasing the success of establishing a vegetative cover. When surface roughening does not occur prior to the application of lime and fertilizer, `mix' the lime and fertilizer into the soil, at least 4 inches, by the methods described in the 1992 Virginia Erosion and Sediment Control Handbook (Std & Spec 3.29). When incorporation does not occur, and fertilizer and lime is applied directly to a smooth surface, the phosphorus (P205) application rate must be reduced by half because of the limited contact area with soil and the risk of nutrients being lost in runoff. 7. Seeding Selection of plants is based on climate, topography, soils, land use and the planting season. The 1992 Virginia Erosion and Sediment Control Handbook vegetative cover standards and specifications 3.31 Temporary Seeding, 3.32 Permanent Seeding, 3.33 Sodding, and 3.34 Bermudagrass & Zoysiagrass, describe in detail the specifications for plant selection. In addition, attached are one -page updates to the vegetative cover standards and specifications, which provide updated fertilizer and lime rates and the seeding schedules for the different physiographic regions of Virginia. 8. Mulching The application of mulch to the soil surface, for both temporary and permanent seeding, is one of the most effective means of controllingrunoff and erosion on disturbed land. All permanent seeding must be mulched immediately upon completion of seed application. It is especially important to mulch liberally in mid -summer and prior to winter. Mulching prevents erosion, and thereby pollution, by protecting the soil surface and fostering the growth of vegetation by increasing the moisture content and providing insulation from extreme temperatures. The 1992 Virginia Erosion and Sediment Control Handbook (Std & Spec 3.35) details the mulch specifications and includes a list of the typical materials used to mulch (for example straw, wood chips, and fiber mulch). Revised 7/17/03 Page 3 of 8 Erosion & Sediment Control Technical Bulletin No. 4 Nutrient Management for Development Sites 9. Hydroseeding Hydroseeding is a mechanical method of applying seed, fertilizer, and mulch to land development sites in one step. This method is efficient in providing an immediate cover to denuded sites; however, the surface must be carefully prepared in order for successful seed germination. Hydroseed on rough, loose surfaces only. Roughen the surface prior to application of hydroseeding, per the specification above and in accordance with the 1992 Virginia Erosion & Sediment Control Handbook (Std & Spec 3.29). Although proper soil pH is crucial in establishing good vegetative cover, lime is usually not included in the hydroseed mix. Therefore, lime should be incorporated into the soil as needed when preparing the site for hydroseeding. To avoid poor seed germination as a result of seed damage during hydroseeding, it is recommended that if the machinery breaks down from 30 minutes to 2 hours, 50% more seed must be added to the tank. Beyond 2 hours, a full rate of new seed is usually necessary. UPDATED FERTILIZER SPECIFICATIONS AND RATES FOR ESTABLISHMENT Plant nutrients should be applied based upon established requirements of the plant to be grown, season of growth, and intended use, as specified in the 1992 Virginia Erosion and Sediment Control Handbook (Std & Spec 3.31, 3.32, 3.33, and 3.34). The timing and rate of fertilizer application depends on the type of grass. There are basically two types of grasses, warm and cool season grasses. Warm season grasses (Bermuda, Zoysia) are those that go dormant in the winter. Cool season grasses (Fescue, Bluegrass) are those that stay green year round. 1. Recommended Season for Applying Nitrogen Fertilizers The earliest spring application of nitrogen for cool season grasses is six weeks prior to the last average frost date (for example, February 6 for Virginia Beach and March 1 for Roanoke). The latest fall application of nitrogen for cool season grasses is six weeks after the first average frost date (for example, December 29 for Virginia Beach and December 1 for Roanoke). The earliest spring application of nitrogen for warm season grasses is the last average frost date for the region (for example, March 20 for Virginia Beach and April 15 for Roanoke). The latest fall application of nitrogen for warm season grasses is 30 days prior to the average first frost date for the region (for example, October 15 for Virginia Beach and September 20 for Roanoke). 2. Per Application Rates Phosphorus (P) and potassium (K) fertilizer requirements should be determined by a soil test. Never apply more than one (1) pound of water soluble nitrogen per 1,000 square feet within a 30 day period. The following table itemizes the fertilization rate revisions to standards and specifications 3.31 Temporary Seeding, 3.32 Permanent Seeding, 3.33 Sodding, and 3.34 Bermudagrass & Zoysiagrass Establishment. Revised 7/17/03 Page 4 of 8 Erosion & Sediment Control Technical Bulletin No. 4 Nutrient Management for Development Sites Summary of Fertilizer Specification Revisions for Establishment of Turf 3. Using Fertilizer Analysis to Calculate Nitrogen Rates All fertilizer packages have three numbers present on the package (for example, 10-10-10 or 16- 4-8). These three numbers indicate the percentage of nitrogen (N), phosphorus (P205), and potash (K20) present by weight which is called the N-P-K ratio. For example, a 20 pound bag of 10-6-4 is 10 percent nitrogen (2 lb. of N), 6 percent phosphate (1.2 lb. of P205), and 4 percent potash (0.8 lb. of K20) the remaining is inert material to facilitate even application of fertilizer. The Virginia nutrient management recommendation is to apply no more than 1 lb. of nitrogen per 1,000 square feet within a 30 day period. A fertilization rate of 1 lb. of nitrogen per 1,000 square feet can be obtained for any site by using the fertilizer analyses on the bag and knowing the area of application. Revised 7/17/03 Page 5 of 8 2003 Urban Nutrient Management Technical Standards & Specifications Bulletin 3.31 Temporary Seeding 10-10-10 fertilizer applied at a rate of 450 lbs. / acre or 10 lbs. / 1,000 ft2 Mixed Grasses &Legumes 10-20-10 fertilizer applied at a rate of 500 lbs. / acre or 12 lbs. / 1,000 ft2 Apply the equivalent of 100 lbs. of phosphate 3.32 Permanent Seeding 9 Legume stands only (p205) and 100 lbs. of Potash (K20) per acre. NO NITROGEN N Grass stands only 10-20-10 fertilizer applied at a rate of 500 lbs. / acre or 12 lbs. / 1,000 ft2 10-10-10 fertilizer applied at a rate of 450 lbs. / acre or 10 lbs. / 1,000 ft2. NOTE: For cool 3.33 Sodding season grasses apply fertilizer in fall or spring. For warm season grasses apply the fertilizer in late spring or summer only. 10-10-10 fertilizer applied at a rate of 500 lbs. / acre or 12 lbs. / 1,000 ft2. Apply additional 3.34 Bermudagrass & Zoysiagrass Establishment phosphorus and potassium 30-60 days later based on the soil test. Apply an additional equivalent of 1 Ib./1,000 ft`of nitrogen when the P & K are applied. Erosion & Sediment Control Technical Bulletin No. 4 Nutrient Management for Development Sites Fertilizer Bag Reads: Amount to Fertilizer to Apply 1 lb. of nitrogen / 1000 sq.ft. 6-2-0 16.6 lb. 10-10-10 10 lb. 16-4-8 6.2 lb. 20-5-5 5 lb. 22-3-14 4.5 lb. 29-3-7 3.4 lb. Use of Slowly Available Forms of Nitrogen utilizer bags will state the source or category from which the nitrogen is derived. Nitrogen rtilizers have two categories: Water Soluble Nitro en i.e. all nitrogen is immediate) g g ( � g Y ailable); and Slowly Available Nitrogen (i.e., nitrogen is available over an extended period of ne). The nitrogen source impacts how grass is fertilized and the rate and timing of application fertilizer. ioose a fertilizer that has some amount of Slowly Available Nitrogen (SAN). Slowly available rogen fertilizers make nitrogen available a little at a time, the way most grasses need it, which iuces both the potential of excess nutrients in runoff and the leaching potential of excess trients into groundwater. Sources of SAN are usually stated on the label. It may be stated as Water Insoluble Nitrogen (WIN), sulfur -coated urea, natural organic nitrogen or other strolled release materials used to coat the fertilizer. The % WIN is usually stated on the tilizer container, if the % WIN is not listed, assume that all the nitrogen in the fertilizer is [ter soluble and immediately available. As a general guideline, if the fertilizer has 50% WIN less, it should be applied in the same manner as readily available nitrogen. If the fertilizer is % WIN or greater, it should be applied as a SAN. UPDATED FERTILIZER SPECIFICATIONS AND RATES FOR MANAGEMENT 1. Application of Fertilizer for Maintenance Apply fertilizer when grass is actively growing and can utilize the nutrients. Summer is best for warm season grasses (zoysiagrass and bermudagrass) while the fall months are best for cool season grasses (tall fescue, Kentucky bluegrass, perennial ryegrass). Annual Application Rates A. When applying 100% Water Soluble Nitrogen sources (those that have all the nitrogen immediately available for plant use), the following rates apply: • Never apply more than one (1) pound of water soluble nitrogen per 1,000 square feet within a 30 dayperiod • No more than 3.5 lbs. of nitrogen per 1,000 square feet annually on cool season grass. • No more than 4.0 lbs. of nitrogen per 1,000 square feet annually on warm season Erosion & Sediment Control Technical Bulletin No. 4 Nutrient Management for Development Sites B. When applying slowly available nitrogen (SAN, WIN, sulfur -coated urea, natural organic nitrogen or other controlled release materials), total annual nitrogen application rates may be adjusted incrementally by referring to the following figure. The maximum annual nirogen rates when using 50% or greater SAN is as follows: • No more than 5.0 lbs. of nitrogen per 1,000 square feet annually on cool season grass. • No more than 5.5 lbs. of nitrogen per 1,000 square feet annually on warm season grass. Erosion & Sediment Control Technical Bulletin No. 4 Nutrient Management for Development Sites C. When anplving maintenance fertilizer on established sod. Pounds of nitrogen per 1,000 sq. ft. if the fertilizer is less than 50 percent WIN Month Type of Grass Tall Fescue Perennial Rye Kentucky Blue rass Bermudagrass Zoysiagrass Se [ember 1 1 0 0 October 1 1 0 0 Earl November 0 0 0 0 April 0 0 0 0 May 0-0.5 0-0.05 1 1 June 0 0 1 0 July/August 0 0 0 1 Year) Lbs. N/1000 sf 2.5 2.5 2 2 Pounds of nitrogen per 1,000 sq. ft. if the fertilizer is more than 50 percent WIN Month Type of Grass Tall Fescue Perennial Rye Kentucky Bluegrass Bermudagrass Zoysiagrass August 15 1.5 1.5 0 0 October 1 1.5 1.5 0 0 April 0 0 1.5 1.5 May 15 0 0 0 0 June 0 0 1.5 1.5 Year) Lbs. N/1000 sf 3 3 3 3 Erosion &Sediment Control Technical Bulletin No. 4 Nutrient Management for Development Sites C. When anplving maintenance fertilizer on established sod. Pounds of nitrogen per 1,000 sq. ft. if the fertilizer is less than 50 percent WIN Month Type of Grass Tall Fescue Perennial Rye Kentucky Bluegrass Bermudagrass Zoysiagrass September 1 1 0 0 October 1 1 0 0 Earl November 0 0 0 0 April 0 0 0 0 May 0-0.5 0-0.05 1 1 June 0 0 1 0 July/August 0 0 0 1 Year) Lbs. N/1000 sf 2.5 2.5 2 2 Pounds of nitrogen per 1,000 sq. ft. if the fertilizer is more than 50 percent WIN Month Typ e of Grass Tall Fescue Perennial Rye Kentucky Bluegrass Bermudagrass Zoysiagrass August 15 1.5 1.5 0 0 October 1 1.5 1.5 0 0 April 0 0 1.5 1.5 Ma 15 0 0 0 0 June 0 0 1.5 1.5 Year) Lbs. N/1000 sf 3 3 3 3 TABLE 3.31-B (Revised June 2003) TEMPORARY SEEDING SPECIFICATIONS QUICK REFERENCE FOR ALL REGIONS SEED APPLICATION DATES SPECIES APPLICATION RATES Sept. 1 -Feb. 15 50/50 Mix of Annual Ryegrass (lolium multi- florum) &Cereal (Winter) Rye (Secale cereals) 50 -100 (lbs/acre) Feb. 16 -Apr. 30 Annual Ryegrass (lolium multi-florum) 60 - 100 (lbs/acre) May 1 -Aug. 31 German Millet 50 (Ibs/acre) FERTILIZER &LIME • Apply 10-10-10 fertilizer at a rate of 450 lbs. /acre (or 10 lbs. / 1,000 sq. ft.) • Apply Pulverized Agricultural Limestone at a rate of 2 tons/acre (or 90 lbs. / 1,000 sq. ft.) 1 - A soil test is necessary to determine the actual amount of lime required to adjust the soil pH of site. 2 -Incorporate the lime and fertilizer into the top 4 - 6 inches of the soil by disking or by other means. 3 - When applying Slowly Available Nitrogen, use rates available in Erosion &Sediment Control Techr # 4.2003 Nutrient Management for Development Sites at hftp://www.dcr.state.va.us/sw/e&s.htm#Dubs TABLE 3.32-C (Revised June 2003) PERMANENT SEEDING SPECIFICATIONS FOR APPALACHIANIMOUNTAIN AREA SEED LAND USE SPECIES APPLICATION RATES Tall Fescue' 90-100% Minimum Care Lawn Perennial Ryegrass2 0-10% (Commercial or Residential) Kentucky Bluegrass' 0-10% TOTAL: 200-250 lbs. Minimum of three (3) up to five (5) varieties High -Maintenance Lawn of Kentucky Bluegrass from approved list TOTAL: 125 lbs. for use in Vir inial Tall Fescue 128 lbs. General Slope (3:1 or less) Red Top Grass or Creeping Red Fescue Seasonal Nurse Crop 2 lbs. 20 lbs. TOTAL: 150 lbs. Tall Fescue' 108 lbs. Low -Maintenance Slope Red Top Grass or Creeping Red Fescue Seasonal Nurse Crop3 2 lbs. 20 lbs. (Steeper than 3:1) Crownvetch" 20 lbs. TOTAL: 150 lbs. 1 -When selecting varieties of turfgrass, use the Virginia Crop Improvement Association (VCIA) recommended turtgrass variety list. Quality seed will bear a label indicating that they are approved by VCIA. A current turtgrass variety list is available at the local County Extension office or through VCIA at 804-746-4884 or at http://sudan. cses.vt. edu/htm I/Tu rf/turf/ou bl ication s/ou blications2. htm I 2 -Perennial Ryegrass will germinate faster and at lower soil temperatures than Tall Fescues, thereby providing cover and erosion resistance for seedbed. 3 -Use seasonal nurse crop in accordance with seeding dates as stated below: March, April -May 15"' ......................... Annual Rye May 161h -August 15"' ......................... Foxtail Millet August 16"' -September, October ........... Annual Rye November- February ............................. Winter Rye 4 -All legume seed must be properly inoculated. If Flatpea is used, increase to 301bs/acra. If Weeping Lovegrass is used, include in any slope or low maintenance mixture during warmer seeding periods, increase to 30 -40 lbs/acre. FERTILIZER &LIME • Apply 10-20-10 fertilizer at a rate of 500 lbs. /acre (or 12 lbs. / 1,000 sq. ft.) • Apply Pulverized Agricultural Limestone at a rate of 2 tons/acre (or 90 lbs. / 1,000 sq. ft.) - A soil test is necessary to determine the actual amount of lime required to adjust the soil pH of site. - Incorporate the lime and fertilizer into the top 4 - 6 inches of the soil by disking or by other means. - When applying Slowly Available Nitrogen, use rates available in Erosion & Sediment Control Technic # 4. 2003 Nutrient Management for Development Sites at http://www.dcr.state.va.us/sw/e&s.htm#pubs Uz 0 I^Z C4 0 N � R rr w N u� O az COaNU 00� ��o rn _J DJ 4< z� o0W>'c m w co ai�zLu � co 00 LLu L 0 � a 0z a Lu _ 1� a w U Q z co a rr co o�� Z w w 0 > 00 ir UU H 00 00 Y LL LL m<< w M fM � N N �p N M M OZ NI I I I__LJ $ PyT H t)+++p/Dt_P021 Jimmy L. Taggart Lic. No. 22841 44 ��.s+ 03/06/23 E`sSt ONAL ECG O r W UQ 0 OJ z � z J 0 J z O N W J m CE O Q W w `� W 0 W LLJ z ~ W LU J U) mW W DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD DATE: 21 23 SCALE: WPO: 8438 FILE: 8438 SHEET: Project Name: Belvedere Block 10 data Input cells Date: 3/2/2023 conrtant values r 1 BMP Design Sped1irotlons List: 2013 Draft Stds &Specs okulation cells �M'7/ 1992 3.05 1. SET POSTS AND EXCAVATE 2. STAPLE WIRE FENCING TO THE 11L�-11 A4%4"TRENCH UPSLOPE POSTS Site Information ALONG THE LINE OF POSTS CONSTRUCTION OF A SILT FENCE O (WITHOUT WIRE SUPPORT Post -Development Project (Treatment Volume and Loads) Z 1. SET THE STAKES. 2. EXCAVATE A 47X 4" TRENCH UPSLOPE ALONG THE LINE OF / land Cover (acres) O O1 rn 2 STAKES. A sons B sons c Sons D sons Totals 0 w N uo O I 1 f / I I Forest/openspace(ames)--undisturbed, �j�% d Z - N U SWAX' protected forest/o ens ace or reforested 0.00 O.OD snQ rr - . j O 2 0 co for yManyard otherf r tusrf to be disturbed, eroded 19.16 19.16 w O Q Q J 0 m s orInpevous[over(aves) o.oz 0.02 Z Q U) �el­ j FLOW 1- 19.18 f f t > � Z ir �� _ _ I,• _ I• Constants Runoff Coefflclmts 11 .. LLU (D 0) _J a FLOW / - III 4" III Annual Rainfall (inches) 43 A Solis B soils C Solis D Solis LL Z Q Target Rainfall Event(indies) 1.00 *_r! e 0.02 D.D3 0.04 0.05 Ill III Total Phosphorus (TP)EMC(mg/L) 0.26 0.15 D.2D 0.22 0.25 d w U Total Nitrogen (TN) EMC(ri 1.86 0., D.15 0.95 D.95 to 4!' Target TPLoad(lb/acre/w) 0.41 Q STAKES AND EXTEND THE EXCAVATED SOIL. AND COMPACT 4. BACKFILL AND COMPACT 3. ATTACH THE FILTER FABRIC TO Pj limitless correction factor) 0.90 TO 3. STAPLE FILTER MATERIAL 4. BACK THE WIRE FENCE AND EXTEND TT IT INTO THE TRENCH. IT INTO THE TRENCH THE EXCAVATED SOIL Post -Development Requirement for Site Area ° '�(' TP Load Reduction Required (Ib/yr) 0.92 O • . ST DEVE LOP FLOW/ Land Cover Summary Treatment Volume and Nutrient Loads FLOW 11- Treatment Volume III I III Forest/Open Space Cover(acres) 0.00 0.3209 (acre-ft) SHEET FLOW INSTALLATION III �I III �II ' Weighted Rv (forest) 0.00 Treatment Volume (cubic feet) 13,979 (PERSPECTIVE VIEW) %Forest 0% TP Load (Ib/yr) 8.78 EXTENSION OF THE FABRIC AND WIRE INTO THE TRENCH Managed Turf Center (acres) 19.16 TN Load Db/yr) 62.83 Informationalpur uses Onl 3,a,. Weighted Rv (turf) 0.20 A I A FLOWI B I ��\ FILTERFABRIC %Managed Turf 100% / 1 Impervious Coser(acres) 0.02 1 7,^ WIRE Rv (impervious) 0.96 A ,// Lull I I I MilIIII-A 11 Z %Impervious 1 O POINTS A SHOULD BE HIGHER THAN POINT B. H DRAINAGEWAY INSTALLATION Ste A ea (acres) 19.18 rr (FRONT ELEVATION) Site Rv o.zo U rn LU Source: Adapted from Installation of Straw and Fabric Filter U U Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-2 STORMWATER MANAGEMENT COMPLIANCE NARRATIVE �, W W SF SILT FENCE DETAIL (W/ WIRE SUPPORT) o 2 2 HI - 2S NOT TO SCALE 3.05-1 THE DEVELOPMENT OF BELVEDERE BLOCK 10 WILL OCCUR IN TWO PHASES OF CONSTRUCTION. THE w 00 COMPLETED PROJECT WILL UTILIZE SHEET FLOW DISCHARGE TO FACILITATE CHANNEL AND FLOOD LU U U PROTECTION. STORMWATER RUNOFF WILL BE COLLECTED AND CONVEYED AS SHEET FLOW. Z Z 9VA25-870-63 WATER QUALITY DESIGN CRITERIA REQUIREMENTS - 00 1992 3 SILT FENCE OUTLET DETAIL THE PROJECT SATISFIES THE REQUIRED REDUCTION OF ITS ANNUAL PHOSPHORUS LOAD THROUGH THE m LL LL (SPECIAL DESIGN) SILT PRESERVATION OF FOREST/OPEN SPACE TO OFFSET INCREASE IN PHOSPHORUS LOADING. 6.9 ACRES OF Q Q FENCE ON -SITE DEQ PRESERVATION EASEMENT (DB 5277 PG 305) IS ALREADY IN PLATTED EASEMENT TOWARDS THIS Maintenance Ti� PURPOSE. I Z Q N N 1. Silt fences shall be inspected immediately after each rainfall and at least daily during 9VA25-870-66.D WATER QUANTITY REQUIREMENTS - o N EXIST. prolonged rainfall. Any required repairs shall be made immediately. GROUND 01 'i EXIST. M M ELEV. TABLE 2-2C OF THE TR-55 MANUAL WAS CONSULTED. THE PRE -DEVELOPED STATE OF THE LAND CAN BE 2. Close attention shall be paid to the repair of damaged silt fence resulting from end o_ _ _ ELEV. CHARACTERIZED AS "WOODS IN GOOD CONDITION". THE POST -DEVELOPED STATE OF THE LAND CAN BE Oz N runs and undercutting. CHARACTERIZED AS "BRUSH - BRUSH/WEED/GRASS MIXTURE WITH BRUSH THE MAJOR ELEMENT" PER OUTLET CROSS SECTOIN DISCUSSION WITH THE COUNTY ON 2-17-23, THIS EQUATES WITH THE MULCHED CONDITION OF THE LAND AFTER 3. Should the fabric on a silt fence decompose or become ineffective prior to the end 10 CLEARING AND MULCHING HAVE BEEN PERFORMED. ALL SOIL ON SITE IS HYDROLOGIC SOIL GROUP "B". DRAFTER: AGF of the expected usable life and the barrier still be necessary, the fabric shall be 12„ ACCORDING TO TABLE 2-2C, CLEARING TREES AND MULCHING IN SUCH A MANNER REDUCES THE RUNOFF DESIGNER: AGF replaced promptly. CURVE NUMBER OF THE LAND FROM 55 TO 48. THIS REDUCTION, IN COMBINATION WITH THE REDUCTION IN IPRODUCTION-1 ZQD PEAK FLOW FROM MULCH ADDITION, MEETS THE REQUIREMENTS OF 9VAC25-870-66D. 4. Sediment deposits should be removed after each storm event. They must be removed when deposits reach approximately one-half the height of the barrier. PyTH OF °J,p S. Any sediment deposits remaining in place after the silt fence is no longer required 1 • -o c` shall be dressed to conform with the existing grade, prepared and seeded. PERSPECTIVE VIEW �� 9 NOTE: TEMPORARY DRAINAGE DITCH OUTFALLS FOR USE PRIOR TO STABILIZATION Jimmy L. Taggart Lic. No. 22841 or?o,0 03/06/23 E5510NAL V STONE 70' MIN. CONSTRUCTION ACCESS /�3" SM-2A ASPHALT TOP / COURSE EXISTING 29 // y?% PAVEMENT 3-2-23 Clearing Plan Type 1124-hr 1-yrRainfall=2.97" 3-2-23 Clearing Plan Type 1124-hr 1-yrRainfall=2.97" O U) "•^' ?-'"-�-•. `>' =�' Prepared by HP Inc. Printed 31=023 Prepared by HP Inc. Printed 3/2/2023 _J HydroCADS 10.10-6a s/n 08126 02020 HvdmCAD Software Solutions LLC Pace 8 HvdroCADS 10.10-6a 11108126 0 2020 HvdroCAD Software Solutions LLC Pape 7 Q 6" M:N. 2 to AGGREGATE BASE Summary for Subcatchment 31S: Pre -Developed Block 10 Clearing Area Summary for Subcatchment 30S: Post -Developed Block 10 Clearing Area \ / PROFILE Runoff = 1.77 cfs @ 12.15 hrs, Volume= 0.334 af, Depth> 0.21" Runoff = 0.15 cfs @ 13.47 hrs, Volume= 0.111 af, Depth> 0.07" Q Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.01 him Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hits, Idle 0.01 him Z Type II 24atr 1-yr Rainfall=2.97" Type II 24-hr 1-yr Rainfall=2.97" <Jll J STONE 70' MIN. Area lac) CN Description Area (ac) CN Description O 19.180 56 Woods, Good, HSG B. gravel road 19.180 49 Blush, Good, HSG B, Graveled Road rY CONSTRUMION ASPHALT PAVED 19.180 100.00%Pervious Area " 19.180 100.00%Pervious Area LINE E ACCESS A 1 To Length Slope Velocity Capacity Description Tc Length Slope Velocity Capacity Description J J z (min) (feet) (ftlft) (ff/sec) WS) (min) (feet) attit) (ft/secl (CIS) z O ,,fII I�' EXISTING 15.0 Direct Entry, 8.0 Direct Entry, O SNOW FENCE �IuyNll IIIIIIIII" - ly �% 4 2% PAVEMENT U (. 111 IIII r �V 2% 12' MIN. Subcatchment 31S: Pre -Developed Block 10 Clearing Area Subcatchment 30S: Post -Developed Block 10 Clearing Area J a Hydrograph Hydrograph II 1.77ds ■R°°°a 0.10,..____. 0.15ds j _ ____ __ __ __ __ _ ■�^°^ W z hr "MUST EXTEND FULL WIDTH DRAINAGE ype II24all o+ _ -- - 7 311 4', hr U J OF INGRESS AND EGRESS TO SEDIMENT 1-yr Rainf =2.97" - 1-1fxRainfallr2.97". BOARD FENCE i-POSITIVE G DEVICE UDOff VO me_0.3''�4 ofCORD FENCE OPERATION Runoff Arpa=19.180 ac 01 RuhWArlan=19.180 a1c L w R lu - 0., _fti''lif chime=0.111 of PLASTIC FENCE �N runoff Depth>0.11" G °' [runoff be pth>0.07" cr LJJ CORRECT METHODS OF TREE FENCING -- -- -- --i-- -- -- -- -- - Tc=15.0 min, o.or TC=8A=1r11fi --'- CN=56 ° I W 06 MIN. PO51'iIVE DRAINAGE --,--: RAPPINGDEVICE M-I _ _ l ' , . •. ....T .. - 0.03 X� Oki 0.02 0 0 FILTER CLOTHiw� o i z 3 a s s v a s to n ,z 13 u s 14 17 to is zo n zz z3 z4 o r z a < s s r a s to n iz is a rs is n s is zo zt zz 23 24 SECTION A -A m. ,a.a,, e,auar., W Ir LLJ asse assess A minimum water tap of 1 inch must be fim1alled with a minhutun 1 inch ballcock r* CORRECT TRUNKARMORING Shutoff Valve Supplying a wash hose with a diametef of 1.5 111C11es for adequate TRIANGULAR BOARD FENCE COnStant presstu�e. Wash water must be caned away from the entrance to art approved Settling area to remove seclhuent. All Sediment shall be prevented from DATE: 21 23 entering storm drains. ditches or watercourse`. SCALE: WPO: 8438 TP TREE PROTECTION FENCING DETAIL PAVED WASH RACK FILE: 8438 NOT TO SCALE 3.38-2 SHEET: 5 OF 6 1992 3.35 STD & SPEC 3.35 MULCHING Mu Definition Application of plant residues or other suitable materials to the soil surface. $ 1. To prevent erosion by protecting thesl oil surface from raindrop impact and reducing the velocity of overland flow. 2. To foster the growth of vegetation by increasing available moisture and providing insulation against extreme heat and cold. Conditions Where Practice Aoolies 1. Areas which have been permanently seeded (see Std. & Spec. 332, PERMANENT SEEDING) should be mulched immediately following seeding. 1992 335 2. Areas which cannot be seeded because of the season should be mulched to provide some protection to the soil surface. An organic mulch should be used, and the area then seeded as soon weather or seasonal conditions permit. It is not recommended that fiber mulch be used alone for this practice; at normal application rates it just simply does not provide the protection that is achieved using other types of mulch. 3. Mulch may be used together with plantings of trees, shrubs, or certain ground covers which do not provide adequate soil stabilization by themselves. 4. Mulch shall be used in conjunction with temporary seeding operations as specified in TEMPORARY SEEDING, Std. & Spec. 3.31. Planning Consideration Mulches are applied to the soil surface to conserve a desirable soil property or to promote plant growth. A surface mulch is one of the most effective man - of controlling runoff and erosion on disturbed land. Mulches can increase the infiltration rate of the soil, reduce soil moisture loss by evaporation, prevent crusting and sealing of the soil surface, modify soil temperatures, and provide a suitable microclimate for seed germination. Organic mulch materials, such as straw, wood chips, bark, and fiber mulch have been found to be the most effective. Chemical soil stabilizers or soil binders should not be used alone for mulch. These materials are useful to bind organic mulches together to prevent displacement. Avariety of manufactured SOIL STABIIJZATION BLANKRTS AND MATTING (see Std. & Spec. 3.36) have been developed for erosion control in recent years. Some of these products can be used as mulches, particularly in critical areas such as waterways. They also may be used to hold other mulches to the soil surface. The choice of materials for mulching will be based on the type of soil to be protected, site conditions, season and economics. It is especially important to mulch liberally in mid- summer and prior to winter, and on cut slopes and southern slope exposures. Organic Mulches Straw - The mulch most commonly used in conjunction with seeding. The straw should come from wheat or oats (free of troublesome weed seeds) and may be spread by hand or machine. Straw can be windblown and must be anchored down by an acceptable method. III - 350 1992 3.35 Hwy - May be used in lieu of straw where volunteer, will not present a problem, and may be spread by hand or machine. Hay can be windblown and must also be anchored or tacked down. Com Stalks - These should be shredded into 4- to 6-inch lengths. Stalks decompose slowly and are resistant to displacement. Wood Cbins - Suitable for areas that will not be closely mowed, and around ornamental plantings. Chips decompose slowly and do not require tacking. They must be treated with 12 pounds of nitrogen per ton to prevent nutrient deficiency in plants; however, can be a very inexpensive mulch if chips are obtained from trees cleared on the site. Bark Chips. Shredded Bark - These are by-products of timber processing which are used in landscaped plantings. Bark is also a suitable mulch for areas planted to grasses and not closely mowed. It may be applied by hand or mechanically and is not usually toxic to grasses or legumes; additional nitrogen fertilizer is not required. Fiber Mulch - Used in hydroseeding operations and applied as part of the slurry. It creates the best seed -soil contact when applied over top of (as a separate operation) newly seeded areas. These fibers do not require tacking, although tacking agents or binders are sometimes used in conjunction with the application of fiber mulch. This form of mulch does = provide sufficient protection to highly erodible soils. Additium . fiber mulch will not be considered adequate mulch when used during the summer months or when used for late fall mulch cover. Use straw mulch duringthese hese periods. Fiber mulch may be used to tack (anchor) straw mulch. This treatment is well suited for steep slopes, critical areas, and areas susceptible to displacement. There are other organic materials which matte excellent mulches but are only available locally or seasonally. Creative use of these materials can reduce costs. Chemical Mulches and Soil Binders A wide range of synthetic, spray -on materials are marketed to stabilize and protect the soil surface. These are emulsions or dispersions of vinyl compounds, rubber or other substances which are mixed with water and applied to the soil. They may be used alone in some cases as temporary stabilizers, or in conjunction with fiber mulches or straw. When used alone, chemical mulches do not have the capability to insulate the soil or retain soil moisture that organic mulches have. This soil protection is also easily damaged by traffic. Application of these mulches is usually more expensive than organic mulching, and the mulches decompose in 60-90 days. Blankets and Matting Field experience has shown that plastic netting, when used alone, does not retain soil moisture or modify soil temperature. In some cases it may stabilize the soil surface while III - 351 1992 335 grasses are being established, but is primarily used in grassed waterways and on slopes IQ Jute mesh and other soil stabilization blankets are good choices for mulching on difficult slopes and in minor drainage swales. Most of the soil stabilization mattings (used to create a permanent matrix for root growth within the soil) must receive mulching in order to properly stabilize an area Notably, some manufacturers have recently developed permanent mattings which include self-contained, temporary mulching materials; however, these measures will have to meet the requirements noted in Std. & Spec. 3.36, SOIL STABILIZATION BLANKETS AND MATTING, before they can be recommended for use on steep slopes and in channel flow situations. The most critical aspect of installing blankets and mats is obtaining firm, continuous contact between the material and the soil Without such contact, the material may fail and thereby allow erosion to occur. It is important to use an adequate number of staples and make sure the material is installed properly in order to maximize soil protection. These products are discussed in more detail in Std. & Spec. 3.36, SOIL STABILIZATION BLANKETS & MATTING. Organic Mulches Organic mulches may be used in any area where mulch is required, subject to the restrictions noted in Table 335-A. Materiah Select mulch material based on site requirements, availability of materials, and availability of labor and equipment Table 335-A lists the most commonly used organic mulches. Other materials, such as peanut hulls and cotton burs, may be used with the permission of the local Plan -Approving Authority. Prior to mulching: Complete the required grading and install needed sediment control practices. Lime and fertilizer should be incorporated and surface roughening accomplished as needed. Seed should be applied prior to mulching except in the following cases: a Where seed is to be applied as part of a hydroseeder slurry containing fiber mulch b. Where seed is to be applied following a straw mulch spread during winter months. III - 352 1992 335 Source: Va. DSWC III - 353 TABLB 335-A ORGANIC MULCH MATERIALS AND APPLICATION RATES RATES: MULCHES: NOTES: per Acre Per 1000 sq. ft. Straw or Hay 1$ - 2 tons 70 - 90 lbs. Free from weeds and coarse (Minimum 2 matter. Must be anchored. tons for Spread with mulch blower winter cover) or by hand. Fiber Mulch Minimum 351bs. Do not use as mulch for 15001bs. winter cover or during hot, dry periods-* Apply as slurry. Corn Stalks 4 - 6 tons 185 - 275 lbs. Cut or shredded in 4fi" lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand Wood Chips 4 - 6 tons 185 - 275 tbs. Free of coarse matter. Air- dried Treat with 12111s nitrogen per ton. IM not use in fine turf areas. Apply with mulch blower, clop handler, or by hand. Bark Chips 50 - 70 cu. 1-2 cu. yds. Free of coarse mattes Air - or yds. dried. Do not use in fine Shredded turf areas. Apply with Bark match blower, chip handler, 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. 1992 3.35 Application: Mulch materials shall be spread uniformly, by hand or machine. When spreading straw mulch by hand, divide the area to be mulched into approximately 1,000 sq. ft. sections and place 70-90lbs. (1h to 2 bales) of straw in each section to facilitate uniform distribution. Mulch Anchoring: Straw mulch must anchored immediately after qpr a i to prevent displacement. Other organic mulches listed in Table 335-A do not require anchoring. The following methods of anchoring straw may be used: 1, h anchoring o f r r r This is a tractor -drawn implement designed to punch mulch into the soil surface. This method provides good erosion control with straw. It is limited to use on slopes no steeper than 3:1, where equipment can operate safely. Machinery shall be operated on the Contour. 2. Fiber Mulch: A very common practice with widespread use today. Apply fiber mulch by means of a bydroseeder at a rate of 500-750 lbs./acre over top of straw mulch or hay. It has an added benefit of providing additional mulch to the newly seeded area 3. Liquid mulch binders: Application of liquid mulch binders and tackifiers should be heaviest at edges of areas and at crests of ridges and banks, to prevent displacement. The remainder of the area should have binder applied uniformly. Binders may be applied after mulch is spread or may be sprayed into the mulch as it is being blown onto the soil. The following types of binders may be used: a Synthetic binders - Formulated binders or organically formulated products may be used as recommended by the manufacturer to anchor mulch. ' b. Asphalt - Any type of asphalt thin enough to be blown from spray equipment is satisfactory. Recommended for use are rapid curing (RC-70, RC-250, RC-800), medium curing (MC-250, MC-800) and emulsified asphalt (SS-1, CSS-1, CMS-2, MS-2, RS-1, RS-2, CRS-1, and CRS-2). Apply asphalt at 0.10 gallon per square yard (10 gal./1000 sq. ft. or 430 gal./acre). Do not use heavier applications as it may cause the straw to "perch" over rills. All asphalt designations are from the Asphalt Institute Specifications. ' Note: This particular method is not used as commonly today as it once was in the past. The development of hydraulic seeding equipment promoted the industry III - 354 MINIMUM TOP WIDTH (W) REQUIRED FOR SEDIMENT TRAP EMBANKMENTS ACCORDING TO HEIGHT OF EMBANKMENT (FEET) SOURCE: VA. DSWC H H0 W 1.5 0.5 2.0 2.0 1.0 2.0 2.5 1.5 2.5 3.0 2.0 2.5 3.5 2.5 3.0 4.0 3.0 3.0 4.5 3.5 4.0 5.0 4.0 4.5 ORIGINAL GROUND ELEV. PLATE. 3.13-1 SOURCE: VA. DSWC PLATE. 3.14-2 ,• vnaIABIF ORIGINP VPAIABIE GROUND ELEV. V fN CU, YDJACRE I VPAIMLI 0 CU, YDJACRE (EXCAVATED) a•Nax \FILTERCHOPH GROUND GRDurvD EIEV 'SEEPIATE3.111 "COPASEAGCREGATE CIASSI RIPW CROSS SECTION OF OUTLET CIASS I RIPW 6MDRA pN EEM ACE PAFA QNAC) pN 7 DIVERS ON DIKE I/.. COMSE AG(REGSIE\ EXCAVATED �gUTEACLO f..COARSEAGGREGATESWVJ_BEVDOTi3,Y35]CAY5 OUTLET (PERSPECTIVE VIEW) STEMPORARY SEDIMENT TRAP JI NOTTOSCALE 3.13-2 U U OI^ Z W✓ 0 N � R rr LU N u� O _N a Z CO < C\1 U_ '0 OU_ ��o ro UQ pJ 0)an z� 000 m wLU �> air- z� F.4 wCO U rnoJ[a F+1 LL z Q F� a w U a co z O d it 00 coLU W W O > 00 LU UU H Z) D 00 > LL LL m00 Lu co M � N N p N CEO co M OZ NI-Lu o�4�PyTH OF/Dr��2 Jimmy L. Taggart Uc. No. 22841 �O.s+ 03/06/23 �w ESSJONAL E0G O � Q LU Ug 0 /, I o J J Z CO z0 U J W � z cr O LLJ W LJJ QCr LLI LLJ U) W LJJ 06 i ~ O J O mW � W J DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD DATE: 21 23 SCALE: WPO: 8438 FILE: 8438 SHEET: