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HomeMy WebLinkAboutWPO201300032 Plan - E&S 2018-10-03COUNTY ENGINEER Curve Radius Tange6t Length ; Delta Chord Chord Bear. C1 175.0(Y 9.65' 19.29 6'1856 19.28 S 26'01'23" W C2 35.00' 33.50' 53.44' 8729'12" 48.40' S 20)'52'55" E C3 540.00' 56.77' 113.12 120V 7" 112.91' N 70)'37'51" W C4 35.00' 29.6Y 49.18' $6'30'IC" 45.23' N 63'07'02' E C 01' 12.41' 24.79 6'18'47" 24.78' N 26'01'24" E 2457.98' 314.76' 1 12-14-54" 314.16' 1N 13'34'20" E Course Bearing Distance L1 '09 S 76'34" E 11.47 L2 N 82'18'49" E 18.27' L3 N 55'47'11" E, 24.40 L4 N 54'34'17" E 51.77' L5 N 63'53'10" E 24.62' 16 N 78'35'38" E 53.53' L7 . S 88'54'21" E 14.91 L8 S 54'53'41" E 54.57' L9 S 43'08'13" Er 141.55' L10 S 53-42'27" S 02.87' L11 S 17-46'15. E 166.27' L12 S 10'30'18" W 81.51' L13 S 26'34 07" E 85.75' L14 S 11'11'50" E 193.39' L15 S 42'58715 E 44 97' L16 S 03-2749" W; . 97.27' L17 S 35.13 55" E 69.16' L18 S 20'38'22" E 65.59' L19 S 02'45'16" W 89.84' L20 S 39'49'04" E 53.80' L21 S 39'49'04" E 13.70' C22 S 25'01'39" W 266.18' L23 N 64'58'21" W 192.44' L24 N 64'58'21" W 347.14 L25 S `49'20'31" W 113.71' L26 ` S 22'51'58" W 53.92' L27 N 22'51'58" E 61.25' 128 N 13'32'43" E 64.09' L29 N 64'58'21" W 322.64' L30 N 40'11 58" E 53.79' L31 N 38'24'58" E 181.21' L32 N 07'09'10" E 108.09' L33 N 14-19'04" E 88.36' TMP 62-25C TMP 62-25C1 BROADUS MEMORIAL BAPTIST CHURCH -CASON FARM RD. DB 1109 PG 353 _..._ -.._. DB 9 078 PC 97 NAIL SET IN l9 10' PRIVATE EASEMENT WOOD BRIDGE� S89'14'19"E TO BROADUS CHURCH PROPERTY 194.32 DB 3662 PG 444 0 cl�S78 20'S1 „e w 0 \ .; TMP 62-26 1 230.17 T0 corn CASON, WILLIAM w DB 793 PC 106 o z L12 0 1 -_ - --- MON. FOUND TMP 62-25 TMP 78-59A \ � 0���1 n 20' SANITARY SEWER EASEMENT o 0� DB 3662 PG 444 20' SANITARY SEWER EASEMENT DB 3662 PG 444 CASCADIA DEVELOPMENT, LLC � �CP "PARCEL TWO" TMP 78-59 J (� TMP 78-59A 1 o TMP 62-25 �o o DB 4209 PC 088 TMP 78E-H ��� �55.266 ACRES (TOTAL) NIT @ 18" POPLAR v - L - FONTANA LAND TRUST " ``` �h I j /NEW \ DRAIN,. ERMANEN EASEMENT TMP 78-59 DB 2436 PG 623 / 91 $ SW20 Or r Profiles /. �2 hh TMP 78 57 PANTOPS-LAKERIDCE LLC. SW21 Storm OSewerrofiles 20' RWSA ESMT, h DB 2805 PG 70 APPROVED DB 859 PG 5T \ CASCADIA DEVELOPMENT, LLC �6939�59" �� Storm ewer Pro -files b the Al emarle DB 742 PG 195, 197 PLAT \��`- "PARCEL ONE" W 2j0 m Commuy' County TMP 78-57A TMP 7L ONE 5, ! nity Dev topn ent De ar rnent L28 60' iTp Orm ro it ail Date_ b ' p C5 DB 4209 PC 088 Tq�� 4 File KMH PROPERTIES LLC. �, ' � r DB 3222 PC 519 G v�i v L2\ 2� 5.506 ACRES � StormCalculations �- �, TMP 78E-H- - FONTANA LAND 1 C;3 1 �8 0 OrIis �23 TRUST >2� IN�9�� o >�E o ri N �1 >,Z 78E-C > co VSMP AMENDMENT FOR WP0201300032 FONTANA OWNERS �3 THE STORMWATER MANAGEMENT CONTENT OF THE CODE OF DEVELOPMENT FOR CASCADIA STATES THAT: FONTANA LAND TRUST ASSOCIATION, C 28i>�'� SU s�''N STORM WATER MANAGEMENT TO INCLUDE BOTH QUANTITY AND QUALITY CONTROL BMP'S WILL BE 100' VI c MA EL EASEMENT I�fsJoN°� A�C�, ��' PROVIDED ONSITE IN VARIOUS LOCATIONS THROUGHOUT THE CASCADIA DEVELOPMENT. THE PRESERVATION DB 269 PG 284 S�' �g AREAS MAY COUNT TOWARDS STORMWATER QUALITY MANAGEMENT FOR ONLY THE DWELLING UNITS IN SEE ALSO DB 867 PG 337 BLOCK 6 THAT CANNOT BE EFFECTIVELY DIVERTED TO THE STORMWATER MANAGEMENT PONDS AND OTHER STRUCTURES ALONG ROU IL 20. FOR THESE RESIDENTIAL UNITS IN BLOCK 6, ROOF DRAINS AND DRIVEWAYS MAY BE ALLOWED TO DISCHARGE UNCONTROLLED SO LONG AS THE DISCHARGE IS DISSIPATED TO THE SATISFACTION OF THE COUNTY ENGINEER AND DOES NOT CAUSE EROSION. THE EROSION AND SEDIMENT CONTROL BOND SHALL REMAIN ACTIVE UNTIL SUCH TIME AS THE 2:1 SLOPES WITHIN BLOCK 6 ARE STABILIZED TO THE SATISFACTION OF THE COUNTY INSPECTORS. a c\1 Cn 9) 0 O o Q Uz- W Q "IW _jJ �Z{ Q Z > W W UQ j" 4 Q? ¢� zzaz oa) w W 0� U? cc O� +1 I-�- cc r W W W o C/-) w Q U � 0 W 2LQ W V 0 DATE APR. 17, 2014 SCALE AS SHOWN O LL < II z Z O d W 1 m C N Q z z rr LL FILE NUMBER 12.0065 6 SHEET SW1 ALL BIOFILTER #2 REFERENCES HAVE BEEN REMOVED FROM THIS SHEET. - - - ------ ---- " . ........ - ----- J W13BI _7 7 KEY PLAN S, > - ---- - — ­400 TH OF p v ROBINSON -410 ZZ -'Z" Z �"` ""I ei DAVID M. Q, — It Lic. No z 56760 ww 10 �L -7 . ... . . ...... Z� (4 7 It If v It N L III ' � I I) j I I }\ \ 1 \I I I I N /! ! -' `, ` ~ �` -- -- _ _ — _ " _ � j°`°` / _ _ _ � \ '` � \ M� �'°o \ \ .. , t \I 1 ` \ \ � 1 \i \ 1 1 I I I I I ' } I 1 j��t.. `\ I I I 1 \ t fit &wS`6 ` \\ \\ . \\\ . \ \ \ \ 1 \. \ 1 1 \ I / /I II I I I I I II I I I I I I 1 , # I} I , I 1 \ I \ \ 1 I! 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I ` I I 1 �"\ \ I (Typ� r a� r.. / m 4.. , \ \ I I i I l \ I \ \ \ \ I + I Qe �'e t } I 1 I fry It__ X R, -lit \'\LEC'END_' STRE.AM BUFFER IMFAC'1'\�REA� q 'N: li'd'!8:4 "z, ml �'I'REAM)UFFER MlTldA'1TJp AREA \'° /' *' /"�t^ c"�c� o / ..q� .. ` / � . / / i .`7 �% i \\ P� 60 � �T \ 1 � �"^r"y`�a I % \, ��\ ss -V'x\\ \r _" I �TABILIZATIQ' �R'EA E�,\OSIO SKEET - ')3 )w _ � € # i # # ##II###I ##II # I### II I# , I # � , /50 0 50 1,00 150 J� LAAAII'T F/ A; �A "A !�'O? SCALE: 1 = 50' 0 C/-) (0 (D or) Cc 04 04 Z � :D z 0 Ch L:c 0 > LL V, -Z W_ zt U) 5; Q to [_ 2 I I (\j -4 2 CK fr C\l < LQ z-_ zz rc 1:6 0g) �1 Q co cl L LLI:;t 0"l- LL rr Q 0 LL Cc Cc LLA -J I WI Lr) 0 ()0 41 0 (y) 0.) 't w W0 z T_ CL REVISIONS CHANGE OF DESIGN FIRM APR. 26,2018 VSMP AMENDMENT MAY 24, 2018 EROSION STABILIZATION AREA ADDED AUG 22, 2018 COUNTY COMMENTS SEPT.17,2018 COUNTY COMMENTS OCT. 2, 2018 DATE APR. 17,2014 SCALE AS SHOWN 0 z 0 LL z tr z U) -5 LL U z C) w 21 LL Z Z < w w LIJ < < Z C46 co W z LL 0 cl) FILE NUMBER 12.0065 SHEET SW1 3A 0 0 U) o WNd d �' Z ZO to rr > Q. LL La Z cc UA -jj - Ou > co< cc w cj) r w o Q 00 i cq W C\l < U-) C\l LLJ 0 u� � 0: � Q � 0 LL Cc Cc -J I kw -wj L r) C4 () C\l p 0 0 I- w z 0 -r . IL ............ . ................ ............. . .. . ......... COUNTY COMMENTS SEPT.17,2018 COUNTY COMMENTS OCT. 2, 2018 DATE APR. 17, 2014 SCALE AS SHOWN Ir Q) z 0 u- z 0 I z 0- z Li. :0:5 0 z z 00 -i z Z m < < w W q) M U 0 z U) < z z w w 177 z LL 0 . . ....... . ..... - --------- FILE NUMBER 12.0065 SHEET SWI 3B PrIRefer to sheet SW13A for channel outfall 'culvert under trail and access road r r ••S oolb / C9 abion / Wall F To = ! ! C2 P ' ! � Otto i ! / / / ti / i� ! / 9'7 r r .. er �or a ed i P . n d n ot n 10 0 10 20 30 BIO-FILTER #1 DETAIL sW15 AND PLANTING ' PLAN Sr'AI F• 1 �� _ 1 n' ---- ---- _ 8' CLEAN -OUT Tree Shrub Ivt rr\vltUllviv �i rr.) BIOFILTER ' GRASS TOP OF BERM W/WATERTIGHT LANDSCAPING SPECIES Size Ht• #1 CAP WEIR °I ALL CULVERT B REFERENCES HAVE ,BEEN 3`/ b` ;n N B OF LTER Red Maple 1.75 1 REMOVED FROM THIS SHEET, '` FILTER FABRIC (TYP. 1.5 (Aces rubrum) WD' Cal. I E GABION BASKET WEIR WALL ^-� . >..'_.:.......::....:...... ...: _ :.. '..:.:: _ .:. _ ..... :........ .....__.. :. KEY GABION BASKET Core* EARTHFILL \ \\306.2V�444 \ \} N` \� 1 �iA\ Gabion Vial \ adiig\is in e�Cisting \\ \ 1 \ 9 \ rays alp \ i `; _ cV e �d` area. No\ \ ` .. \ 1 \ \ \ . an I cl�arin nee ed. �.�' o sw -^ � 9 tz Imp -,88 Sf, \ 1 \ \ \� M \ \ \ \ \ \ ` •'4y \ \ \ Grass Lined Channel n n I \ / S \ \\ \ \ s \ \ \ \ \ 1 \ ti ase e t \ -�..: mn \\\ \ 6 SCC-B DETAIL _........... ._................ ........ _ _ ......... ....... _.......... ,! Culvert Type = Circular Concrete Veloc Dn (ft/s) = 4.30 \ \ ' \ ` `. \ \ \ Culvert Entrance = Square edge w/headwall (C) Veloc U ft/s = 5.16 \ \ uIV A \ \ \ \ \ Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 HGL Dn (ft) = 445.27 J,; \\ \ \ :. • \ \'' \ \ \ \ \ \ f i . HGL U ft = 445.29 \ ��e�`�90' Q \ \ \ \ \ HDPL \ \ \\ \ \ \ \ \ \ c Embankment Hw Elev (ft) = 445.84 0 0 \ \ Top Elevation (ft) = 446.50 Hw/D (ft) - 1.15 O � < � `` '� \ � , `•":�,•,•:" \ \ \ \ \ \ _ _ 9,9 \ \ \ \ ,• \ \ \ To Width ft 4.00 rn \ \ P O Flow Regime Inlet Control.. � Gt.- \ i \ � \ ... .� •.• .... \ ` \ \ � \ \ Crest Width (ft) _ 20.00 \ P ;" , \ , . . •. -,; '-_ . \ r \ \ Grass Swale #2., Imp. Area=6,350 Sf, , O q Elev (d) CULVERF-A - Mtit 6ePth, inl447.00 3 P 1 •�. � \Q �� A,+ i� , \ '�� � \ ,\ \ \ ��. \, \ \ ,\ � � \ \ � I , 9 , \ \ \ \ 1I _ .. _. _.... :.: . ..:.. \ \ \ \ _ 2.10 -�•. � \ t , ,.aa __ 50 � Prese e r , ! .... „ : 1:_aR:....: \ ` ti \ \ 1.5 High Gabion Nall i .. ......_.............. ............ 1.ta �9 \ \ \ at 33 O.C. T I \ \ i m � r \j a S f r x \ 3. 1 \\ r \. r \ \ f \ l F , x _... . \ \, .....w_ ....,: _ , i ;;; 5a a. a �•\� o z ; s a 10 12 1l4 16 1a _a citcuta:catvaii ` MGL Eoj�>k 455 455 \ \ �� \ \ .. • �. V W'dth T 'I , f 45C 6 CULVERT A CALCULATION 1._ SW15 44t Rip -Rap Outlet Protection (See detail SW15) / % 44C Culvert Report HydraFlow Express Extension For AutoCADO Civil 3Dt& 2013 by Autodesk, Ina. Monday, Aug 18 2014 CULVERT -A Invert Elev Dn (ft) = 444.20 Calculations Pipe Length ft P 9 ) = 11.50 Q min cfs - ( = 8 4. 1 0 Sloe / p (o) 1.74 Qmax (cfs) -4.81 Invert Elev Up (ft) _ = 444.4Q Tailwater Elev (ft) � (dc+D)/2 Rise i 1 n ( ) = 15.0 Shape = Circular Highlighted Span (in) = 15.0 Qtotal (cfs) _ 4.81 No. Barrels = 1 Qpipe (cfs) = 4.81 n-Value = 0.013 Qovertop (cfs) _ 0.00 FILTER FABRIC WALL 2' TO BE PLACED 33 O.C. AS SHOWN 8� Sugar Hackberry SWALE #1 = 2' WEIR PROFILE 1.75" 1 SWALE #2 3' WEIR NO SCALE (Celtis occide...... ... .... ...............................ntalls) (Cal.) Grass Swale Sizing Calculations: .......... ............. .. ..... ._ _............. _... ..... SECTION A -A Grass Swale #1 Drainage Area = 0,54 Acres Z „ LOAM OR GRANULAR loll NO SCALE- - - - 4 NON-PERFORATEDHeritage River Birch Clum 1 c-0.37; Tc-5 Min; 12 -5.5; I(10)-7.1 PVC PIPE (9 1% MIN, p = .10 cfs; Q(10)=1.38 cfs Q(2) 1 SLOPE 4 PERFORATED PVC (Betula nigra) Grass Swale Sizing Calculations: V(2)=0.94 ft/s (Line with Grass) PIPE @ 1% MIN, SLOPEp-�.�.F _ aw:a,,.wA Grass Swale #1 Impervious Area: 2,880 sf. *Impervious core shown for informational Total Trees provided 3 : Volume Required: 2,880 sf. X .5 = 117 cf. s only. Final design to be provided purpose Y 9 P Weir Calculation (Weir Length = 2'): Arrowwood Viburnum 18t} Volume Provided, 130 cf. (65 cf. 'in two ponding cells. 3 r by geotechnical engineer, 3 2 Year: 1.10 cfs-3.33(2 )(H 2) -> H= 0.30 (Viburnum dentatiam)m�.� Grass Swale Sizin Calculations: 10 Year: 1.38 cfs=3.33(2')(H^2) -> H= 0.35' + Red Chokeberry 18 g 3 - Grass Swale #2 Impervious Area: 6,350 sf. r ..._(Pyrus.::arbutifolia).. Grass Swale 2 Drainage Area = SEE Note: For BF-1, Extend 4 wide by 1 deep rip -rap Volume Required: 6,350 sf, X .5 = 265 cf. � 9 1.34 Acres TOP OF GRASS channel to stream. Refer to sheet SP8 Summersweet DETAIL Clethra alnifolia 18 2 Volume Provided = 288 cf. 72 cf. in four ondin cells. c=0,36; Tc=5 Min; I(2)=5,5; I(10)=7.1 EV= 430 BERM WEIR of the site plan for final grading. ( )) � p 9 BF#1 EL Q(2)=2.65 cfs; Q(10)=3.43 cfs V(2)=0.80 ft/s (Line with Grass) Total Shrubs provided g - o 8 GRASS SWALE DETAIL Weir Calculation (Weir Length = 3'): o SW15 NOT TO SCALE 2 Year: 2.65 cfs=3.33(3')(H-3) -> H= 0.41' V= 428 10 Year: 3.43 cfs=3.33 3' H 3 -> H= 0. ' u .. ( )( 2) 49 UNDERD AIN R ..... , 4 ON PERFORATED -- :....•':::, .,:...,.r:...:.:...::..-......... 50% SAND 30% TOPSOIL/ - N :. / c� ::._,>;.:..., ...........::::.....<.:::•. Grass Weir 20% LEAF MULCH PVC PIPE (SAND: 0.02' -0.04, - ASTM c33 FINE) BERM BERM ALL BIOFILTER _2 REFERENCES HAVE BEEN REMOVED FROM THIS SHEET. >;,Tx of V= 424 v FILTER FABRIC D 1� UNDERDRAIN GRAVEL (AASHTO M43, PROVIDE PIPES Embankment Elev.=330.00 100 Yr. Elev=329.55 0 � ACROSS ENTIRE WIDTH 1/2 -1) WRAPPED IN FILTER FABRIC A A AT 20 FT O.C. 2:1 SIDE + 4, A �• ,L( SLOPES r DAVID M. ROBINSON (MAX) 2 Lic. No. "CD IvV Bio-Filter Sizing Calculations: UNDERDRAIN f\\ A / OP 5676o w DA-BF #1 Impervious Area: 22,500 sf. 4 PERFORATED _ .._.) I t/ ass E�yG Bio-Filter Area Required: 22,500 X 5% = 1,125 sf. JIM + PVC PIPE (� PIPE OUTLET TO IoxnL Area Provided = 1,165 sf. L___ PIPE OUTLET r� Grass Weir WELL-DEFINED .,... TO FLAT rest Elev.=329.00 CHANNEL AREA WITH Bio-Filter Weir Sizing Calculations: DA-BF ,#1 Drainage Area = 1.145 Acres c=0.57; Tc=7 Min; 1(10)=6.5; I(100)=&4 Q(10)=4.24 cfs; Q(100)=5.48 cfs Weir Calculation (Weir Length = 4'): 10 Year: 4.24 cfs=3.33(4')(H-') -> H= 0.47' 100 Year: 5.48 cfs=3.33(4')(HA2) -> H= 0.55' M 2 BIO-FILTER SCHEMATIC SW15 NOT TO SCALE - (PLAN VIEW PLAN VIEW NO DEFINED CHANNEL jr At EMERGENCY SPILLWAY (7_ DETAIL FOR BF-1 L 12' --- ' - --- CLEAN -OUT (TYP) - ___.__.. ._._..__....... - - --........-_ - - d = 12" I III d=12" SECTION A -A . FILTER CLOTH KEY IN 6"-9"; FILTER CLOTH KEY IN 6"-9"; RECOMMENDED FOR RECOMMENDED FOR TYPICAL PLANTING SCHEMATIC SECTION A -A ENTIRE PERIMETER ENTIRE PERIMETER (Median Stone Size) - BIO-FILTER �1 (SEE 1 /SW16) Outlet Structure ' Diameter Pipe (in) Discharge (cfs) Apron Length (ft) Upstream Apron Width (ft) Downstream Apron Width (ft) Riprap Stone Size CULVERT A 15" 4.81 8 3.75 7.00 Class Al ('9_ OUTLET PROTECTION TABLE 5�1�15 Not To Scale \ \ \ ar, i ral , \ \ '•°';> \ SWIM Access & mintq enre ad Stream Buffer 450 Miti ation Easement e `` �t?P4R93 PG 163-17 v v D PG 660-67 \ \ �, A 445 � .� \ \ \ \ °'�;ass \ 440 435 30 0 30 60 90 r Ell 0 Q 11.I Z ® cc U., -J1 _i C/-) Q� 0Z � uu O� W P 1 Q Z V C _jN Q? W cc cc z Q oOc 1 a) Q 1 WUQl:,, U O k W Lo w V PI: " I'-•• W W 1 LU W �i a_ REVISIONS CHANGE OF DESIGN FIRM APR. 25, 2018 VSMP AMENDMENT MAY 24, 2018 EROSION STABILIZATION AREA ADDED AUG. 22,2018 COUNTY COMMENTS SEPT. 17, 2018 COUNTY COMMENTS OCT. 2, 2018 DATE APR, 17, 2014 1 z i f � � I i Z 0- a 0 w rc r W m IL a rn ® W z I `5L 17200651 SHEET SW15 . . ...... ... - --- - ----- _21 0 CQ 1 4s o EROSION STABILIZATION A�EAI R Z 14- jc act AjeaMe o _4� pa 7, n _ 7— • 4 • STE`AMyfl UFFER v_� - ----- z _q LIS —STANH 151t;.2 q� -- -- '' i' /o / yc Eq A50 Air —7- 7_ 'OGE 0 f3_0__A01,' E. a/ GAGA 7 s.y NAPLES t-tP, PLAN _, TF�4/7-6-• LC Or=_ .19\.I / / / / , , . ;. , / � Q / �P e\' o / � ,_ _ '- • . '°�-9 �'" _ - y ��' _- .. "`� 2 - FF , 0.86' / I -0. Y / � / i j - l / `, _ .d - -- - — -- -- A . s` - PZ 4 C15 L ii E�k \ \ \ \\ \ \\\ \��\\ \ <9\\ \ \ \ \ �� \ 1 V kP "P 6,9 147 oi� I l / ' )j 1/l�jlll�ll�l / l � / I I I I 1 \ \ I � \ , \ `i 1 \ I � \I�lll II'llil 'Iii� I I l I I I I 1 I � `� \ \ �\ \ \ \ \ \ LEGEND STREAM BUFFER IMPACT AREA STREAM BUFFER MITIGATION AREA EROSION STABILIZATION AREA ti co 0 4 1 Li 'P JFAI 5 BF. av/ ,qm 9 / `— � �' / ' e/ .� / 8•• ar• 6., I I ry FFE= \ � — k�i- .L9 ' o' ^+ � c� c�� � Il - - — o o � 1C 00jn _!1.6 ow CD jz! L 2, 14 1-4 - -�nn Z U S N FFE D 40t 1-4 'Z ERNST SEED MIX 181 ERNST SEED MIX 181 TO BE PROVIDED ON EROSION 27.3% Sorghastrurn nutans, NY4 Ecotype (Indiangrass, NY4 Ecotype) STABILIZATION AREAS 20.0% Lolium multiflorum (Annual Ryegross) SEED RATE: 60LBS PER ACRE 11.0% Andropogon gerardii, 'Niagara' (Big Bluestem, 'Niagara') EROSION STABILIZATION AREA 24,450 SF 10.0% Elymus virginicus, PA Ecotype (Virginia Wildrye, PA, Ecotype) Container grown seedlings tubes at 700 per acre 7.0% Elymus canadensis (Canada Wildrye) approximately 8'x8' on center:' 450 sqft 6.1% Sc'hizachyrium scoparium, Albany Pine Bush —NY Ecotype (Little, Bluestem,. Albany 24:45O/(8'x8') sf = 383 seedlings tubes Pine Bush —NY Ecotype) 5.0% Tridens flavus (Purpletop) 383 grown seedling tubes. 4.0% Agrostis perennans, Albany Pine. Bush —NY Ecotype (Autumn Bentgrass, Albany Pine Bush —NY Ecotype) 3,0% Panicum virgatum, 'Shelter' (Switchgrass, 'Shelter') 1.3% Chamaecristo fasciculata, PA Ecotype (Partridge Pea, PA Ecotype) 1.27, Echina.cea purpurea (Purple Coneflower) 1.0% Coreopsis lanceolata (Lanceleaf Coreopsis) 1.0% Rudbeckia hirta, Coastal Plain NC Ecotype (Blackeyed Susan, Coastal Plain NC Ecotype) 0.8% Heliopsis helianthoides, PA 'Ecotype (Oxeye Sunflower, PA Ecotype) 0.5% Aster lateriflorus (Calico Aster) 0.3% Asclepias syriaca, PA Ecotype (Common Milkweed, PA Ecotype) 0.3% Liatris spicata (Marsh (Dense) Blazing Star (Spiked Gayfeather)) 0.2% Monarda fistulosa, Fort Indiantown Gap —PA Ecotype (Wild Bergamot, Fort Indiantown Gap —PA Ecotype) STREAM BUFFER DISTURBANCE: Mitigation Plantings * (bare root seedlings or whips at 1,210 per acre, Impact Area 1: 12,432 SF approximately 6' x 6' on center) Impact Area 2: 12,439 SF Medium to Large Deciduous Trees 24,871 SF Acer rubrum Red Maple Betula lenta Black Birch MITIGATION AREA REQUIRED: Liquidombar styraciflua Sweetgum 2 x IMPACT AREA Small Canopy/understory Trees 2 x 24,871 SF = 49,742 SF Amelainchier canadensis Serviceberry Cercis canadensis Redbud MITIGATION AREAS PROVIDED. Magnolia virginiana Sweetbay Magnolia Evergreen Trees 51,150 SF Magnolia grandiflora Southern Magnolia Evergreen Shrubs Kalmia latifolia Mountain Laurel Rhododendron viscosum Swamp Azalea Taken from "Riparian Buffers Large Shrubs Modification and Mitigation Cornu's stolonifera Redtwig Dogwood Guidance Manual" by DCR, Hamaimelis virginiana Common Witchhazel chapter 5.1, Reforestation/ Small Shrubs Establishment Table B. 5—year Clethria alnifolia Sweet Pepperbush maintenance and performance guarantee required. Herbaceous Plants Chelone Iyonii Pink Turtlehead Iris cristato Crested Iris Lobelia cardinalis Cardinal Flower Podophyllum peltaturn Mayapple OF DAVID M. ROBINSON Lic. No. 56760 .4� 1010510 '?IONAL 0 T� C\1 U) C/-) 00 0 D 8 00 -rc L C\1 er d Z) 0 Z0 o to t r @) —0 > C) 0) U_ - Z LU cf� Ct W U, 2 LLJ LL, [: Q I 00 C\1 < LU 1: 6 Q 0) C\1 ce) U 6 0 ac a LLJ -J U-jj LO 0 C/-) (.) i= 6 Z UJ 0 cy) 6) 't W Z Z 0 IL REVISIONS CHANGE OF DESIGN FIRM APR. 26, 2018 vSMP AMENDMENT MAY 24, 2018 EROSION STABILIZATION AREA ADDED AUG. 22, 2018 COUNTY COMMENTS SEPT.17, 2018 COUNTY COMMENTS OCT. 2, 2018 DATE APR.17, 2014 SCALE AS SHOWN 0 LL Z j < Z Cc CL U) Z 7�1 �e Z 0 o__ 0::) F- Z 00 W Z _j T_ W U_ C)v LL M W 06 W < Z Z W W () rr U) Z U_ FILE NUMBER 12.0065 SHEET SW1 6 11 F 1C, 1 ALL BIOFILTER #2 REFERENCES HAVE BEEN REMOVED FR OM THIS SHEET. l �tri ev�. g ..D' \ - el' e _ - - n \ I _ I \ LR 0 F _ I ;z l - I I 1 1 I � - / _ - I --' - — - — - I - -- `'\ \ \ \ \ >:.: --- -- •-- -- -- — — -' / / /// .��: •... -- -�; • J /' J - \ t , I ( ( I \ , DAVI D M. ROBINSON Lic. 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( L0 i\ e`aamae Jrim+rnd In,a./. / _ / /. j ,, /. � � /• / \� ; \ _��' /r -Plop ' 1( ctua) A2 ces—'-''""• \ / /) ( (- .1- -' /r • _ -- — -- _ -1 - -I/i ,- / �i r III > \ I I c 0 5 � / 1 ---•,-_-___'rr_�._ / / I � � / � �s � _- / / �>'r 'p / r / / / �- .%- / ��:;.,�,/" / / � \\: 102 4 0 j:yA -Pend 1 all iAreas •\ 2 2 cre E ist a m n ves -.: _,, - \ / / .•�"_'-::;-.--,- , \,�`" - I >'�� �� � , �%,, r, _- �- - -���_ _ � \�\ \t ,\ \`� � � � LEGEND r r �1 ui di g i. Z STREAM BUFFER IMPACT AREA \ _ .,� d I ) \ I i ) / S J / I ( ( j t r � (/ � / l _ _ _ __ � �J I � 0:• 5 �1c e Pra�o�ed Bu Idl g ..� :_.-i �___�,_._ / STREAM BUFFER MITIGATION AREA _ "`-;�`_._.,_ posed `, ✓- r EROSION STABILIZATION AREA 26 Acre P o 0 d 1 ovN,1F d alk -- "_' W 'hteT - 100 0 100 200 55 5 SCALE: _ _. 1 __ __ �_ _ _-..._..... _.. _ 1 0 _ _ ..__.._ —_T __ _ _---- - -- --..............0 o / / / w V U) cf) (0 a)M W � �® O �I Oa L 0) LL C ) q� Q W W �1 U Q 0 C\ Q e? 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