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HomeMy WebLinkAboutWPO202200044 Correspondence 2022-10-21SITE DATA DEVELOPER. OWNER: PLAN PREPARER: TAX MAP PARCEL No: PARCEL AREA: ZONING: USE. MAX. BUILDING HEIGHT. - SE TBA CKS - EXIST. IMPERVIOUS AREA: PROP. IMPERVIOUS AREA: MAGISTERIAL DISTRICT - DRAINAGE DISTRICT.- BOUNDARY SOURCE. - TOPOGRAPHY: FLOODPLAIN: EROSION &SEDIMENT CONTROL PLAN SCHWEIKER PARTNERS, LLC 72511 NATHANIEL OAKS DRIVE OAK HILL, VIRGINIA 20171 SCHWEIKER, RYAN CHRISTOPHER & SARAH JEANNE SCHWEIKER 49 OLAND ST RUCKERSVILLE VA, 22968 ROUDABUSH, GALE & ASSOC., INC. 999 SECOND STREET SE CHARLOTTESVILLE, VA. 22902 (434)-977-0205 02200-00-00-006A1, 02200-00-00-006A2, 02200-00-00-006A3 23.14 ACRES, 8.22 ACRES, 6.33 ACRES RURAL AREAS (RA) RESIDENTIAL, 1 SINGLE FAMILY RESIDENTIAL DWELLING, 1 GARAGE MAXIMUM STRUCTURE HEIGHT IS 35 FEET FRONT SIDE REAR 75' (PUBLIC ROADS) 25' 35' 0.43 AC 1.65 AC RIVANNA DISTRICT PREDDY CREEK, HUG JR-12 COMMONWEALTH SURVEYING, LLC BY DAVID JORDAN 8111121 TOPOGRAPHY IS LIDAR SUPPLEMENTED BY FIELD SHOTS ALONG THE DRIVEWAY CORRIDOR, GARAGE AND HOUSE SITE LOCATIONS THE SUBJECT PROPERTY IS SITUATED WITHIN AN AREA OF MINMAL FLOOD HAZARD ZONE 'X" AND A SPECIAL FLOOD HAZARD AREA ZONE A AS SHOWN ON COMMUNITY PANEL NO. 51003C0175D WITH AN EFFECTIVE DATE OF FEBRUARY 4, 2005. WPO 2022—OO� TM P 22-6A1, 6A2 & 6A3 RIVANNA MAGESTERIAL DISTRICT, COUNTY OF ALBEMARLE, VA i CO,UN / i OUNryOOFIORgN PREDDY CREEK PARK / / q;BEMq Ilk� 1 � l J °9In \ — / O — v SITE LOCATION / \ FySTgTjO 1 o tiq i e o � a o � O � O \ l D 4 • oo° � o o, � 0 0 � — o p o �S < n o a r' i da /; VICINITY MAP 1"=1000 FEET SHEET INDEX SHEET # SHEET TITLE 1 COVER SHEET 2 EXISTING CONDITIONS & DEMOLITION PLAN 3 EROSION & SEDIMENT CONTROL PLAN - PHASE 1 4 EROSION & SEDIMENT CONTROL PLAN - PHASE 11 5 EROSION & SEDIMENT CONTROL NARRATIVE 6 EROSION & SEDIMENT CONTROL NOTES & DETAILS APPROVALS DEPARTMENT SIGNATURE DATE DEPARTMENT OF COMMUNITY DEVELOPMENT ENGINEERING INSPECTIONS U U O Z o� O 'orN W u� d d Z Q N U OCR O �� 02 xO0�J O O m Oz0LU Wa 5)ot fr rn00L0)afr 0 _ 0- W U a co � rx z 0 a fr 0 W 0 z 0 w cc m W a 0 0 z PyTH of Gt�c 2 o � U� 9 Dustin E. Greene tic. No. 55833 4 0 'f'oll10/14/22 11 n �SSI ONAL �1yG W z U Q z W J O rr �o w III U III z u rr w � w W o > 0 U U W 06 O = O Uw C) DRAFTER: DEG DESIGNER: DEG PRODUCTION: ZOD DATE: 29 JULY 22 SCALE: ---- WPO: FILE: 22.3335 SHEET: 1 OF 6 • ' 27C • e •• • . ALBEMARLE COUNTY STEEP • • • • • •, ° e SLOPES OVERLAY TVP • o ' • ' 100 YEAR FLOODPLAIN •oeee-o•••••••••eee• • •••4,• •°•••ems•••° • • d ••, (PER COUNTYGIS) / o 1 -_ - ''�°• - - '''•�- --_- -'•�_ •:� ii ®oo••®oo•• SOIL LINE FOP\\� e••; lz �CC - L ` \ EDI�AROS FAMILY D 022D0- 00 0 2 CE ETERY 0.04 AC \ J • ' `W, AND IVARTHA A OS \ \ \ EXCFPTED FROM Tl \ I \ `'' I I I I J / l S • 9, 664%PG 440 ` \ \ C N</EYANCE IN DB \ 1 • I ( I ( • 59�-RG 481 (P/T\ \ \� \ 5 PG 41 SEEB 't I I I // • • o �I 1 1 \ \\ / ) (( 10" MAI�LE S 27 18'5�3L' E8—.62' L • • • - j� +� 0-L BO/oT O/;� PID 0220—..0-0c� •��\\ \• ��e 0 ND\ 15SAND B NDS = DTvI I I I • � 1 I / (` / � ®• • I s — , J � � I I l l / / l/ / l I � =-\� � = — \ � \� � \- � • — /% � 'I I FOP a � � � � � / �j / � 1 P � I � �� I � �: � • --�� I �� 1 I �, "�\.. �� \ ��,/ — �/ e • V •, �� /xlfcj :` - AFPROXIMATELOCAT/ON: _ • - i- 'r�� • _ \ I I I I li E£44ERY� \A� \ �� 1i — — • ✓ % V \ V // • J / / / \ oy� 1�— �. w J�qf/ q FEA",'4 SPEC/AL FLOOD HAZARD. J / /� A J� AMLA o!✓E A" W11HOUT BASE SS \' u r = • %•'✓ \\ \' ® i , FLOOD ELEu now) • THE 9lAM�Y \ • \\ / = i '� •� �� •®�� \� •. e I ''""''''�T� �"• CER�N \�\ \ \\\ , � 1 \ \• \ � � � / i -s-�_ _ L� T ;/�/ \ \, � ox / IS \�\ I / /I � \ \ � Bl`1LT�NN�L/NE / \ \ \ � � \ � :� � � / '�'�+,,,/ l �� /`1 • . .>� \ 1 \ � ` 1 I � '' �' . • � � �� • �I \ \\ O�H G EL_ORL'✓E \ • � ��. - \ � �"`*,, - �o +t \ f.�'• \ S � • I I: , / � � � / c I 1 � � � A\\A /ice � \\ \ V� � � � � ��\�. � � , / •7i � � �- • � A{L � � � � i i�: � % � , j -' ) t� 11 � � �L\\\ ��/ /� \ I I I � � �� \ \\ �� ' • ASS � � � \ • � / J --j o al FID 0�2D �OZ9—�06A� \��\\ �� �\\ \\ A— ��/ /•� 34C, / . r : \ `\� \ i Pi R4F ` I ( I � \\ \\\\\ \ ` / \\ J • , 1-4\� •: I COUNTY OF A 3Z&'A TOT L I I I I \�\ \ ,•••• • ,�• ®®®® o \,yv�\'v\ \\ VA` \\�•v��\\\\4 \ \\ \ \ \ �\ \\\\\\ \\\ \\ \\\\\\vv\,\�\ `; v \ \\\ �\\\\ \\\ \\ I� \ �l \ -V—`�A\ ,_- V\ \ ,�\�. \� \\\\�•\�.A.\ , �� � �\ �\\ \ \ ��\\ +\ �\ \\�1\ � �\ v\=\�\\.\�\•� ; \\E/�C\\/X•�� I\ \\S�,\ �T�IN\G\��\T \T\ �\ \—v•\�\,\\ \ A�• ��V \]�\\'-/ — \�/��\ v—/ /i � �-�\��J•\ O`//•/�\� .\/��\ ����� \.\v_ \ - � \ A\\ \ \\ _ �\ t� �• E\\• A\� \\\•\\ - \\\• D \y \ 5A 09 \ OFFS�/I \\ \\� \�\�\ \\\•i11� \_1•I /\J�!\\<-I•—�_I �/\ I /_/ �I_-�\Il� _� II� 1� I1�(\\/\ l• / / /�• // �-�l• //—�\ ' I -1 //o //•Ie/ �• / � �//\JI' /__' /// �/1,I• �/\/ /i\�• �/�/•/v I / /'°./ l�/,�%•��/ II l/� — //•—�/I/ 1. ^\") /�\ //\///. \AI \\l \\/• / •l \I � / \//\ \\ I�\/II\//\I/\\\\J/I \ / �I\�1\ \/ 1vI \�\v/\\ PI1I \\\ l�v\ �1\II\/ v\AI \I � � �\\ \\\ \lII� �1\IA2, J • I���A\4\\1v�l\ p\\�1 \ \Iv3Ip/\Iy � \A �I \\I1I I1�A\\1 fDI\ '�\II I I � I �I �1I$\ \y�\IJ1\�\VII C�f I J I �R \l�1v1I\\\I/� IJIH\�J IA J v\ I1\Tr\I\/ II(�I 1I\ � J I• /��l ` I �\1JI I 1 —JI1I �I \� �II� \I\(l(1II\I (I 1I I�l\I I �1 I1 \� /III1 I1\1II• I\ I\oIr \lff� �er�.I\ .'J°\ I I\e�° 1••\\ I ' 1i\\I I•�� I1 �1 \I1 \—\ /I\1I Ia,�0•0\PE x , I ^1 • a•• •\/� \ 4 \ ,` '\• �\./�I1` -+ • l � , \ \��,\ � �-o\V r a \> II . - \g \® I ®`•i®/ 1f ,:..1 ��� ®:\i_ o•. +� •® ,CPCERE�NINDTED•" RYS•RL ETl• rNR• De('R�FF . :• O' f-�LK�'�'���'�\ .�\• .• 'aL. • �/ /; \ X \41OB\ � �� ®• a PURPOSES ROAD FOR GMPHICAL � Ov35 /S THE o CENTERLINE OF PR/DDYCREEK (PREDDY CREEK ,,�'\ OB 1600 PC\\ 00-20 0II •01I� III I I • 41J-418 (PLAT) _No_ch>RLO �44s2T/ o LEGEND 7 I247II EI EXISTING GRAVEL100 ' 0• l ::N Q REMOVALBUFfE HAS-GRAVEL3C EE ° •\\ • TREE SHRUB .' REMOVAL wee•sroI I .. ° TREELINE PID 02200-00-00-OION0EXISTING LOT 9 SOILS INFORMATION: 34B - GLENELG LOAM, 2 TO 7 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B///J / �34C -GLENELG LOAM, 7 TO 15 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVESTATE ROUTE 641 BURNESTATION ROAD i FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B VARIABLE WIDTH PUBLIC RIGHT—OF—WAY PID 02200-00-00-OIOMO 34D GLENELG LOAM, 15 TO 25 PERCENT SLOPES, MORE THAN SO INCHES TO RESTRICTIVEDB 816 PG 28J LOT 8 OB 807 PG 126 FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B DB 580 PG 193 34E - GLENELG LOAM, 25 TO 45 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE DB 801 PG 539 FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 39C - HAZEL LOAM, 7 TO 15 PERCENT SLOPES, 20 TO 40 INCHES TO RESTRICTIVE FEATURES, REE LINE PR _ I I / f I I I (r I I• I I / I o \ EXCESSIVELY DRAINED, HYDROLOGIC SOIL GROUP: B 39D - HAZEL LOAM, 15 TO 25 PERCENT SLOPES, 20 TO 40 INCHES TO RESTRICTIVE FEATURES, �� J I e�/ / I / / I I I / //( l • • •� \ \\ EXCESSIVELY DRAINED, HYDROLOGIC SOIL GROUP: B / , J PID 02200-00-00-01OLo J / // / �j / `�O I �l / /rf • \\\ LOT 7 / / / / 39E - HAZEL LOAM, 25 TO 45 PERCENT SLOPES, 20 TO 40 INCHES TO RESTRICTIVE FEATURES, / ••//� /� / �� �j�// / // I Y•� ` �\ \\;N EXCESSIVELY DRAINED, HYDROLOGIC SOIL GROUP: B 95 - HATBORO SILT LOAM, 0 TO 2 PERCENT SLOPES, OCCASIONALLY FLOODED, MORE THAN 80 • Ile INCHES TO RESTRICTIVE FEATURES, POORLY DRAINED, HYDROLOGIC SOIL GROUP: B/D 0 I 0 160 240 ■ ■ ■ ■ ■ :0 A 0 V) z rn o 2 OU wuo0 UU Uuio(0 U Q o rn m z� �'� �> 0)0z° �.j 00 � z W fr EL F� d w U Q xIr P,TH 0p k U \/ 9 Dustin E. Greene Lic. No. A„P 55833 w�v4 0, 1011 412022 ti} G `gsIONAL E� Z U Q z � z L� O 0 J � �1 z LLJ LLJ c) 0 z °6 rr LLJ z Z LLJ o 1 (n C) 06 LU z 0 0 0 U) 0 = 0 z w U w z 0 U co w 0 o � � o w U w z 0 w ms N N 0 � a O o DRAFTER: TDD DESIGNER: TDD PRODUCTION: ZD DATE: 29 JULY 22 SCALE: AS SHOWN SDP: FILE: 22.3335 SHEET: 2 OF 6 1 ALBEMARLE COUNTY STEEP SLOPES OVERLAY 100 YEAR FLOODPLAIN (PER COUNTY GIS) 00000e0 - SOIL LINE bp •� s ' \ e •00 ®00 \' `" ""-` --- LIMITS OF ////l/ \ ,1I '� 'ae-•�^""" V /// DISTURBANCE //J \I 1 e •'e \ ST2 DA 1.37 AC 4 '• ' • • (/ o_ • I 470 �. o Rip ' ® �- I .. �, •s 2jo • • R _ I 1_ g80 \ \ °°• \ w ST2 F P �\� • CIP sF=4s �� DD oz / • \ I -490� 1 • • • ° • a eo • \ \ • °• °e• � •�oT••ee••••eeo••eTee•• �' • • • • 0 • ' • g> ' • a \ ST3 DA = 2.82 AC • • • /° !0\ *a •• ••• \` I • \ • \\\\ •• • �+ + � • ° /\ • • • 0 o e 0 CIP �1 I • i j k� ' ° • CLASS I ' �,'• o • � 1 LIMITS OF / '� o. _ ST3 DISTURBANCE P • •''' ° • ��� RIP RA ~ CIP OP ¢� n _ PS PS ST1 DA = 0.99 AC o�F �� i sti� OP eF=may° ' ° i LIMITS OF \ • \ � ��� "��� � /+� F�2 �' '�a '• � � DISTURBANCE ' / •• I — v D Z • •® �g moo. \\�\� � a X ��' SF ° • •'•�g• NEW 15' X •ap• •�i� ~ .00* go** ACCESS }30 •• - o e7F\ EASEMENT •\ / LIM — 4� �' •� ITSOF 00 DISTURBANCE_ -- - • ' r • _ \ °• ° �I- I. ^ LIMITS OF / l / I / ° • • • • •• T \ ` \ DISTURBANCE / / I� • • \ \ • • • / o SF \ • of •••e••••••� •••si••�•�r•ii'�"fir•• S 1/ '• 0 } • s • `c • --� � iQEdlll�i;N • ''� �I � , • RCc L/�Vc � z, V i Tvp ° •• \ \ \ \ • b \ • • • CE + P 1� '• \ \ ' • • + 00 'F • \ �a ®• • •''\ ( 0 00 I LEGEND �• 1 \ • • • \ �� • •' °• ❑ CONSTRUCTION \ \ "kk \•'o„ � �Y' °•® • ENTRANCE • ( I 3.02 CE 1 °'• • � � / / ®' ' e e 3.05 SILT FENCE SF� ' • / •' ° CULVERT INLET • • \ • : • 3.08 PROTECTION CIP \ 1 • • i / \ • \ \ ' • • ` CLEAN WATER \ \' °� ••°' I I : 3'09 DIVERSION • CWD ' i '' • \ •' b' I 3.09 TEMPORARY DD o0 \ / \ ° • • I • ❑ DIVERSION DIKE O \ I • • I • 3.13 SEDIMENT TRAP ST 3.18 OUTLET PROTECTION OP 50 sw SCALE: 1 0 50 100 150 3.31 TEMPORARY SEEDING8 3.32 PERMENANT SEEDING 8 3.35 MULCHING MU "REFERENCE THE LATEST VERSION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESCH) FOR DETAILS REGARDING INDIVIDUAL CONTROL MEASURES. Y�1 0 V) z cv)rn o 0w cjuO0 aZ vw< 8 P fr �>o= OQ j q) in Z0 00) > 0) rz Z wwwfr F� d w U Wfr H OF Dustin E. Greene Lic. No. .0 55833 q,4 Po 10/14/22 ��' F�`SSI ONAL E�Gl W z z z� W J J Q O O � z z W 0 O � z z J J rr � � W o 0 �J UD _ Cn W C z z O 0 U) 0 O CL UIr rn w w V ) Z O d U U w 0 Z O w m w O z DRAFTER: DEG DESIGNER: DEG PRODUCTION: ZOD DATE: 29 JULY 22 SCALE: AS SHOWN WPO: FILE: 22.3335 SHEET: 3 OF 6 �- �'F 'Q�S ¢9sco; `\\\\2\\ ON \ \ \\\ \ \\ \ \ \\\\ \ \ / / \ \ \\ \y� �, RT I I1 / �\ / A-2.WAC �/To CULVERT DA (AC) C Tc (MIN) Q10 (CFS) A 21.08 0.27 22 21.89 B 1.46 0.2 5 1.94 C 1.99 0.3 5 3.97 Invert Elev Dn (ft) = 434.40 Calculations Pipe Length (ft) = 20.75 Qmin (cfs) = 21.89 Slope (%) = 2.89 Qmax (cis) = 21.89 Invert Elev Up (ft) = 435.00 Tailwater Elev (ft) = Normal Rise (in) = 18.0 Shape = Circular Highlighted Span (in) = 18.0 Qtotal (cfs) = 21.89 No. Barrels = 2 Qpipe (cis) = 21.89 n-Value = 0.012 Qovertop (cis) = 0.00 Culvert Type = Circular Concrete Veloc Dn (ft/s) = 9.36 Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 6.88 Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 435.34 HGL Up (ft) = 436.27 Embankment Hw Elev (ft) = 437.23 Top Elevation (ft) = 438.21 Hw/D (ft) = 1.49 Top Width (ft) = 12.00 Flow Regime = Inlet Control Crest Width (ft) = 50.00 Culvert B Invert Elev On (ft) = 434.00 Calculations Pipe Length (ft) = 21.30 Qmin (ofs) = 1.94 Slope (%) = 3.76 Qmax (cfs) = 1.94 Invert Elev Up (ft) = 434.80 Tailwater Elev (ft) = Normal Rise (in) = 15.0 Shape = Circular Highlighted Span (in) = 15.0 Qtotal (cfs) = 1.94 No. Barrels = 1 Qpipe (cfs) = 1.94 n-Value = 0.012 Qovertop (cfs) = 0.00 Culvert Type = Circular Concrete Veloc Dn (ft/s) = 7.14 Culvert Entrance = Square edge w/headwall (C) Veloc Up (ft/s) = 3.69 Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 HGL Dn (ft) = 434.34 HGL Up (ft) = 435.35 Embankment Hw Elev (ft) = 435.57 Top Elevation (ft) = 436.60 Hw/D (ft) = 0.61 Top Width (ft) = 12.00 Flow Regime = Inlet Control Crest Width (ft) = 50.00 Culvert C Invert Elev Dn (ft) = 430.00 Calculations Pipe Length (ft) = 38.40 Qmin (cfs) = 3.97 Slope (%) = 5.21 Qmax (cfs) = 3.97 Invert Elev Up (ft) = 432.00 Tailwater Elev (ft) = Normal Rise (in) = 15.0 Shape = Circular Highlighted Span (in) = 15.0 Qtotal (cfs) = 3.97 No. Barrels = 1 Qpipe (cfs) = 3.97 n-Value = 0.012 Qovertop (cfs) = 0.00 Culvert Type = Circular Concrete Veloc Dn (ft/s) = 10.11 Culvert Entrance = Square edge w/headwall (C) Veloc Up (ft/s) = 4.75 Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 HGL Dn (ft) = 430.45 HGL Up (ft) = 432.81 Embankment Hw Elev (ft) = 433.23 Top Elevation (ft) = 435.30 Hw/D (ft) = 0.98 Top Width (ft) = 12.00 Flow Regime = Inlet Control Crest Width (ft) = 50.00 Yf yQp9 �A \ M9, 44 SCHWEIKER RESIDENCE IEarth I ProtectiveLinino 0.9 0.5 0.3 CA Tc 12 Q2 Slope Allow nselect n=.03 n=.05 n=.015 1110 Q10 DEP Remarks STA STA WS ICA WS CA WS CA Inc Acc ft/ft Vel Vel Qn VEL DEP Qn DEP SCC 1 13 14 6 0.012 2 0.002 10 0.007 0.022 0.022 5.0 5.5 0.12 0.140 4.0 0.03 2.83 7.07 0.15 0.14 Grass 14 15 6 0.012 2 0.002 10 0.007 0.022 0.043 5.6 5.3 023 0.140 4.0 0.03 3.34 6.87 0.30 0.18 Grass 15 16 6 0.012 2 0.002 10 0.007 0.022 0.065 6.1 5.1 0.33 0.140 4.0 0.03 3.67 6.70 0.43 021 Grass 16 17 6 0.012 2 0.002 214 0.148 0.162 0227 6-5 5.0 1.14 0.130 4.0 0.05 0.06 3.31 0.37 6.56 1.49 0.41 EC-2 17 18 6 0.012 2 0.002 554 0.382 0.397 0.624 7.0 4-9 3.04 0.070 4.0 0.05 0.16513 .35 0.60 6.41 4.00 0.61 EC-2 18 19 6 0.012 2 0.002 646 0.446 0.46 1.085 7-5 4.7 5.15 0.040 4.0 0.05 0.23.10 0.82 627 6-801 0.90 EC-2 19 19.5 6 0-0061 21 0.001 777 0268 0275 1.361 8.1 4-61 628 1 0.0201 4.01 0.051 1 0.31 2.51 1.00 6.12 8-331 1.11 EC-2 - ®� r r © r r r ■ r r r r r r r- �®�■ r' r� r r �■■■■■� r r �� OVERLAND FLOW Upper Elevation = 604' Lower Elevation = 601' Length = 100' Slope = 3.0% Tc = 13 min SHALLOW CONCENTRATED Upper Elevation = 600' Lower Elevation = 510' Length = 837' Slope = 10.7% 837' / 5.3 ft/sec 158 sec Tc = 2.5 min CHANNEL FLOW Upper Elevation = 510' Lower Elevation = 436' H=74' Length = 1340' Tc=6.5min Total Tc = 22 min CULVERT/CHANNEL A Tc Channel A Triangular Side Slopes (z:1) Total Depth (ft) Invert Elev (ft) Slope (%) N-Value Calculations Compute by: Known Q (cls) Elev (ft) Highlighted = 2.00, 2.00 Depth (ft) = 1.25 = 2.00 Q (cfs) = 21.89 Area (sgft) = 3.12 = 432.00 Velocity (ft/s) = 7.00 = 4.50 Wetted Perim (ft) = 5.59 = 0.030 Crit Depth, Yc (ft) = 1.50 Top Width (ft) = 5.00 EGL (ft) = 2.01 Known Q = 21.89 LINE CHANNEL A WITH RIP RAP CLASS I Section Depth (ft) 435.00 3.00 434.50 2.50 434.00 2.00 433.50 1.50 433.00 1.00 432.50 0.50 432.00 0.00 431.50 0 1 2 3 -0.50 4 5 6 7 8 9 10 Reach (ft) 6= CRUM RUN Y - 1 LAYER IR SMW 2 12' _� I& -CRIM- I& -440000, op DRIVEWAY TYPICAL SECTION 0 1 � � 50 0 50 100 150 SCALE: 1"=50' Ili \\\ it' \\��i11r111� 200 0 200 400 SCALE: 1"=200' r M. C �Z L.8 N a� °C w N u7 0 d Z W Q N U Om Wuio= U Q p O m �.j 0°0)Z � fr�oo LLrnTd Z OC F40 > _ d W U �a x Z O U 07 W 0 Cl) Z O U1 W cc m W Q 0 0 Z -L-LL PyT H OF GIG, o � `7 9 Dustin E. Greene Lic. No. 4 0 55833 �oF, 10/14/22 �SSIONAL '0 W UQ zUD W Q Q U) z U W � J � z � rr W Q W o z Lu (� W 06 w z 0 O J = U) z U � C J w DRAFTER: DEG DESIGNER: DEG PRODUCTION: ZQD DATE: 29 JULY 22 SCALE: AS SHOWN WPO: FILE: 22.3335 SHEET: 4 OF 6 EROSION AND SEDIMENT CONTROL NARRATIVE PRIOR TO CONSTRUCTION 1. OWNER SHALL POST SURETY BONDS FOR CONSTRUCTION, EROSION & SEDIMENT CONTROL. 2. CONTRACTOR SHALL OBTAIN PERMITS TO WORK WITHIN STATE RIGHT-OF-WAY (VDOT LAND -USE PERMIT). BONDING FOR WORK WITHIN THE VDOT RIGHT-OF-WAY MAY BE REQUIRED TO OBTAIN THE PERMIT. 3. A PRE -CONSTRUCTION MEETING WITH THE ENGINEER, THE CERTIFIED LAND DISTURBER, AND THE ENVIRONMENTAL INSPECTOR MAY ALSO BE REQUIRED. ALLOW 72 HOURS FOR COORDINATION AND SCHEDULING OF PRE -CONSTRUCTION MEETING. PROJECT DESCRIPTION THIS PROJECT PROPOSES TO BUILD A SINGLE FAMILY RESIDENCE AND GARAGE. THE DEVELOPMENT WILL INCLUDE A LONG, PRIVATE DRIVEWAY LEADING TO THE RESIDENCE. THE PRIVATE DRIVEWAY WILL MOSTLY FOLLOW A 15 WIDE ACCESS ROAD FOR THE EDWARDS FAMILY CEMETERY BUT WILL DEVIATE AT THE BOTTOM THE VALLEY IN ORDER TO CREATE A BETTER CROSSING FOR THE CHANNEL AND BUILDABLE AREA FOR THE GARAGE. THE LIMITS OF DISTURBANCE FOR THE DEVELOPMENT WILL BE APPROXIMATELY 2.75 ACRES. EXISTING SITE CONDITIONS THE CURRENT CONDITIONS OF THIS SITE CONSIST OF GENTLE SLOPES FALLING TO STEEPER SLOPES IN A SOUTHWEST TO NORTHEAST DIRECTION FROM BURNLEY STATION ROAD TO PREDDY CREEK. THREE LARGER SWALES CROSS THE PROPERTY AND FLOW INTO A WATER PROTECTION ORDINANCE BUFFER AND INTO PREDDY CREEK. THERE ARE STEEP SLOPES THAT ARE BEING AVOIDED WITH THE DRIVEWAY, GARAGE AND HOUSE CONSTRUCTION LIMITS OF DISTURBANCE. ADJACENT AREAS THE SITE IS BOUND BY BURNLEY STATION ROAD TO THE SOUTHWEST. THE LAND TO THE NORTHWEST OF THE SITE IS BOUND BY PREDDY CREEK.THE SITE IS BOUND TO THE NORTHWEST BY TMP 22-2C AND TO THE SOUTHEAST BY TMP22-6C AND 22-10 OFF -SITE AREAS ANY EXCESS MATERIAL GENERATED AS PART OF THIS PROJECT SHALL BE STORED OR SPREAD WITHIN THE APPROVED LAND DISTURBANCE AREA OR IN A AN AREA APPROVED BY THE COUNTY OF ALBEMARLE COMMUNITY DEVELOPMENT DEPARTMENT. SOILS 34B - GLENELG LOAM, 2 TO 7 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 34C - GLENELG LOAM, 7 TO 15 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 34D - GLENELG LOAM, 15 TO 25 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 34E - GLENELG LOAM, 25 TO 45 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 39C - HAZEL LOAM, 7 TO 15 PERCENT SLOPES, 20 TO 40 INCHES TO RESTRICTIVE FEATURES, EXCESSIVELY DRAINED, HYDROLOGIC SOIL GROUP: B 39D - HAZEL LOAM, 15 TO 25 PERCENT SLOPES, 20 TO 40 INCHES TO RESTRICTIVE FEATURES, EXCESSIVELY DRAINED, HYDROLOGIC SOIL GROUP: B 39E - HAZEL LOAM, 25 TO 45 PERCENT SLOPES, 20 TO 40 INCHES TO RESTRICTIVE FEATURES, EXCESSIVELY DRAINED, HYDROLOGIC SOIL GROUP: B 95 - HATBORO SILT LOAM, 0 TO 2 PERCENT SLOPES, OCCASIONALLY FLOODED, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, POORLY DRAINED, HYDROLOGIC SOIL GROUP: B/D *SOIL DATA TAKEN FROM UNITED STATES DEPARTMENT OF AGRICULTURE NATURAL RESOURCES CONSERVATION SCIENCE CUSTOM SOIL RESOURCE REPORT (INCLUDED IN SUBMITTAL). DELINEATION OF SOILS SHOWN ON SHEET 2. CRITICAL AREAS CRITICAL AREAS WITHIN THE DEVELOPMENT INCLUDE THE STREAM BUFFER AND STREAM (PREDDY CREEK). STEEP SLOPES AS IDENTIFIED ON SHEET 2. STRUCTURAL PRACTICES 1. THE ESC IMPROVEMENTS CAN ADEQUATELY CONTROL EROSION AND OFFSITE SEDIMENTATION USING A CONSTRUCTION ENTRANCE, DIVERSIONS, SILT FENCE, OUTLET PROTECTION AND CULVERT INLET PROTECTION; LOCALIZED SEDIMENT TRAPS ARE INSTALLED INITIALLY TO CAPTURE RUNOFF. GRADING OPERATIONS INVOLVE CUT AND FILL OPERATIONS IN PREPARATION OF THE DRIVEWAY AND BUILDING PAD SITES. INSTALLATION OF THE SILT FENCE AND SEDIMENT TRAPS SHALL OCCUR AS THE FIRST MAJOR STEP IN CONSTRUCTION AND PRIOR TO ANY ADDITIONAL GRADING OR ADDED EARTH MOVING OPERATIONS. ANY AND ALL SEDIMENT AND EROSION SHALL BE MINIMIZED UNTIL THE FACILITIES ARE FULLY OPERATIONAL. SHOULD THE CONTRACTOR ENCOUNTER AN OVER -BURDEN OF BEDROCK DURING GRADING OPERATIONS CONSULT WITH ENGINEER AND OWNER TO INVESTIGATE DESIGN ALTERNATIVES. VEGETATIVE PRACTICES 1. PERMANENT SEEDING (3.32) - AREAS BROUGHT TO FINAL GRADE OR THOSE CONSTRUCTION AREAS THAT WILL REMAIN DORMANT FOR YEAR OR MORE SHALL BE STABILIZED WITH A PERMANENT SEED MIXTURE ACCEPTABLE TO THAT TIME OF YEAR. PREPARE SURFACE WITH APPROVED TREATMENT AND ADDITIVES PRIOR TO APPLYING SEED. 2. MULCH (3.35) - PLANT RESIDUES OR OTHER SUITABLE MATERIALS SHALL BE APPLIED TO DISTURBED SURFACES TO PREVENT EROSION AND REDUCE OVERLAND FLOW VELOCITIES. THIS PRACTICE SHOULD BE APPLIED TO ALL SEEDING OPERATIONS, OTHER PLANTER MATERIALS WHICH DO NOT PROVIDE ADEQUATE SOIL PROTECTION BY THEMSELVES, AND BARE AREAS WHICH CANNOT BE SEEDED DUE TO THE SEASON BUT WHICH STILL NEED PROTECTION TO PREVENT SOIL LOSS. CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED. MANAGEMENT STRATEGIES 1. CONSTRUCTION WILL BE SEQUENCED SO THAT GRADING OPERATIONS CAN BEGIN AND END AS QUICKLY AS POSSIBLE. 2. THE CONSTRUCTION ENTRANCE AND PERIMETER EROSION CONTROL MEASURES SUCH AS TREE PROTECTION AND SILT FENCE SHALL BE INSTALLED AS THE FIRST STEP OF DISTURBANCE. 3. TEMPORARY SEEDING OR OTHER STABILIZATION METHODS, SUCH AS BASE AGGREGATE WILL FOLLOW IMMEDIATELY AFTER REACHING FINAL GRADES. 4. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS NEEDED TO ESTABLISH GROWTH. 5. THE JOB SUPERINTENDENT SHALL BE RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL PRACTICES. 6. AFTER BEING NOTIFIED BY THE EROSION AND SEDIMENT CONTROL ADMINISTRATOR, THE TEMPORARY EROSION AND SEDIMENT CONTROLS CAN BE CLEANED UP OR REMOVED. PERMANENT STABILIZATION ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH STRAW & SEED IMMEDIATELY FOLLOWING FINISHED GRADE. SEEDING SHALL BE DONE WITH KENTUCKY 31 TALL FESCUE IN ACCORDANCE TO STANDARD AND SPECIFICATION 3.32, PERMANENT SEEDING, OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. ANY FERTILIZER AND LIME APPLICATIONS SHALL BE IN ACCORDANCE WITH SOIL TEST RESULTS. ALL SEEDED AREAS WILL BE STRAW MULCHED TO PROTECT AGAINST RILL EROSION AND TO PRESERVE SOIL MOISTURE THAT WILL ENHANCE SEED GERMINATION. CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED. EROSION CONTROL MAINTENANCE IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. THE FOLLOWING ITEMS WILL BE CHECKED IN PARTICULAR: 1. THE CONSTRUCTION ENTRANCE SHALL BE CHECKED DAILY FOR SOIL BUILDUP. IF THE ENTRANCE BECOMES CLOGGED WITH SOIL AND FAILS TO PREVENT THE TRANSPORTATION OF SOIL ONTO THE ROADWAY, ADDITIONAL STONE, REPLACEMENT OF STONE, OR A WASH -RACK MAY BE REQUIRED. IF A WASH -RACK IS INSTALLED, THEN PROPER CONTAINMENT OF THE WASH -RACK IS REQUIRED. 2. SILT FENCE SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. CLOSE ATTENTION SHALL BE PAID TO THE REPAIR OF DAMAGED SILT FENCE RESULTING FROM END RUNS AND UNDERCUTTING. SHOULD THE FABRIC ON A SILT FENCE DECOMPOSE OR BECOME INEFFECTIVE PRIOR TO THE END OF THE EXPECTED USABLE LIFE AND THE BARRIER STILL BE NECESSARY, THE FABRIC SHALL BE REPLACED PROMPTLY. SEDIMENT DEPOSITS SHOULD BE REMOVED AFTER EACH STORM EVENT. THEY MUST BE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT FENCE IS NO LONGER REQUIRED SHALL BE DRESSED TO CONFORM WITH THE EXISTING GRADE, PREPARED, AND SEEDED. 3. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS NEEDED. IN THE EVENT THAT THE APPLIED SEEDING FAILS TO TAKE HOLD, BLANKET MATTING SHALL BE PLACED IN APPROPRIATE AREAS DEEMED NECESSARY BY THE ENGINEER OR EROSION CONTROL INSPECTOR. SEQUENCE OF CONSTRUCTION 1. AFTER OBTAINING ALL REQUIRED PERMITS THE CONTRACTOR SHALL COORDINATE A PRE -CONSTRUCTION MEETING, ALLOWING 72 HOURS FOR ITS COORDINATION. THE PRE -CONSTRUCTION MEETING WILL BE HELD WITH THE COUNTY E&S INSPECTOR AND CONTRACTOR PRIOR TO ANY LAND DISTURBANCE. 2. CONSTRUCT A CONSTRUCTION ENTRANCE ALONG BURNLEY STATION ROAD. ENTRANCE TO BE INSTALLED ADEQUATELY PER CONSTRUCTION ENTRANCE DETAIL. 3. CLEARLY MARK LIMITS OF DISTURBANCE WITH BRIGHT -COLORED FLAGGING. 4. ALL PERIMETER CONTROLS MUST BE MADE FUNCTIONAL PRIOR TO ANY UPSLOPE LAND DISTURBANCE THAT TAKES PLACE. 5. SILT FENCE, TRAPS AND DIVERSIONS SHALL BE INSTALLED AS SHOWN ON THE EROSION AND SEDIMENT CONTROL PLAN. 4. BEFORE COMMENCING CONSTRUCTION OPERATIONS, THE CONTRACTOR SHALL COORDINATE INSPECTIONS, AS REQUIRED BY THE COUNTY OF ALBEMARLE. 5. GRADE IN DRIVEWAY, CULVERTS AND BUILDING SITE PADS. 5.1. THE LAND DISTURBANCE SHALL BE RESTRICTED TO THE LIMITS OF THE DISTURBANCE AS SHOWN IN THE EROSION CONTROL PLANS. 6. DENUDED AREAS SHALL DRAIN TO AN APPROVED EROSION CONTROL MEASURE AT ALL TIMES DURING CONSTRUCTION. 7. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO ALL DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 8. LIME, FERTILIZE AND APPLY TEMPORARY OR PERMANENT SEEDING TO ALL DENUDED AREAS IMMEDIATELY AFTER ACHIEVING FINAL GRADES. 9. AFTER PROPOSED CONSTRUCTION IS COMPLETED AND THE SITE IS COMPLETELY STABILIZED, PERMISSION IS TO BE OBTAINED FROM THE EROSION CONTROL INSPECTOR FOR THE REMOVAL OF SILT FENCING AND OTHER REMAINING TEMPORARY EROSION CONTROL MEASURES. EROSION AND SEDIMENT CONTROL MINIMUM STANDARDS 1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 2. CONTRACTOR SHALL ESTABLISH A STABILIZED SITE, AND NOT ALLOW ANY SEDIMENT TO EXIT THE PROJECT LIMITS. 3. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. 4. CONTRACTOR TO PROTECT STOCKPILE AREAS WITH SILT FENCE. 5. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. 6. CONTRACTOR SHALL ESTABLISH A VEGETATIVE COVER ON ALL DENUDED AREAS. 7. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND -DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 8. CONTRACTOR SHALL ESTABLISH THE PERIMETER CONTROLS OF SILT FENCE AS THE FIRST STEP OF THE LANDS DISTURBANCE FOR THIS PROJECT. 9. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. 10. CONTRACTOR SHALL INSPECT EROSION CONTROL MEASURES AFTER EACH RAINFALL EVENT. 11. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN. 12. THERE ARE NO PROPOSED SEDIMENT BASINS. 12.1. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. 12.2. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM OF 24-HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED. 13. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. THERE ARE NO PROPOSED CUT OR FILL SLOPES. HOWEVER, THE CONTRACTOR IS TO RESTORE THE PROJECT AREA TO EXISTING GRADE. IF THE AREAS WITH NATURALLY STEEP SLOPES ARE FOUND TO BE ERODING EXCESSIVELY AFTER ONE YEAR, CONTRACTOR IS TO PROVIDE ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. 14. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE. MAXIMIZE SHEETFLOW AND GROUNDWATER INFILTRATION. 15. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED.CONTRACTOR TO NOTIFY ENGINEER AND COUNTY EROSION CONTROL INSPECTOR. 16. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT.THERE ARE NO STORM SEWER INLETS PROPOSED. 17. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL.THERE ARE NO STORMWATER CONVEYANCE CHANNELS OR PIPES PROPOSED. 18. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NON -ERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NON -ERODIBLE COVER MATERIALS.CONTRACTOR SHALL FOLLOW THE VESCH CHAPTER 3.25 UTILITY STREAM CROSSING REQUIREMENTS FOR THE TWO INTERMITTENT STREAM CROSSINGS. 19. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NON -ERODIBLE MATERIAL SHALL BE PROVIDED.CONTRACTOR SHALL FOLLOW THE VESCH CHAPTER 3.25 UTILITY STREAM CROSSING REQUIREMENTS FOR THE TWO INTERMITTENT STREAM CROSSINGS. 20. ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET.CONTRACTOR SHALL FOLLOW FOLLOW ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS FOR THE TWO INTERMITTENT STREAM CROSSINGS. 21. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED.CONTRACTOR SHALL FOLLOW THE VESCH CHAPTER 3.25 UTILITY STREAM CROSSING REQUIREMENTS FOR THE TWO INTERMITTENT STREAM CROSSINGS. 22. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: 22.1. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. 22.2. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. 22.3. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF -SITE PROPERTY. 22.4. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. 22.5. RE -STABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS CHAPTER. 22.6. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH.CONTRACTOR TO ADHERE TO THE APPLICABLE STANDARD FOR PRIVATE AND PUBLIC UTILITY INSTALLATION. 23. 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 OR 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. THIS PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND -DISTURBING ACTIVITIES.CONTRACTOR SHALL MAKE PROVISIONS TO KEEP ADJACENT ROADS CLEAN FROM SOIL BUILD-UP. 24. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED UNLESS OTHERWISE AUTHORIZED BY THE VESCP AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.CONTRACTOR SHALL STABILIZE SITE, AND OBTAIN INSPECTOR APPROVAL PRIOR TO REMOVING EC MEASURES. UPON APPROVAL OF THE ENVIRONMENTAL INSPECTOR, INSTALL INFILTRATION AREAS AND CONNECT ROOF DRAINS. 25. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN ACCORDANCE WITH THE FOLLOWING STANDARDS AND CRITERIA. STREAM RESTORATION AND RELOCATION PROJECTS THAT INCORPORATE NATURAL CHANNEL DESIGN CONCEPTS ARE NOT MAN-MADE CHANNELS AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS:THIS PROJECT DOES NOT INCLUDE ANY ADDITIONAL IMPERVIOUS SURFACES AND THE PROJECT AREA WILL BE RESTORED TO ITS EXISTING CONIDTIONS.THEREFORE WILL NOT PRODUCE ANY ADDITIONAL STORMWATER RUNOFF. A. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR MAN-MADE RECEIVING CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR THOSE SITES WHERE RUNOFF IS DISCHARGED INTO A PIPE OR PIPE SYSTEM, DOWNSTREAM STABILITY ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE SYSTEM SHALL BE PERFORMED. B. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED USING THE VSMP CHANNEL PROTECTION CRITERIA. STORMWATER DISCHARGES ARE CLASSIFIED INTO ONE OF THREE TYPES OF CHANNEL. (1)"MANMADE STORMWATER CONVEYANCE SYSTEM" MEANS A PIPE, DITCH, VEGETATED SWALE, OR OTHER STORMWATER CONVEYANCE SYSTEM CONSTRUCTED BY MAN EXCEPT FOR RESTORED STORMWATER CONVEYANCE SYSTEMS OR, (A) THE MANMADE STORMWATER CONVEYANCE SYSTEM SHALL CONVEY THE POST -DEVELOPMENT PEAK FLOW RATE FROM THE TWO-YEAR EVENT WITHOUT CAUSING EROSION OF THE SYSTEM DETENTION OF THE STORMWATER OR DOWNSTREAM IMPROVEMENTS MAY BE INCORPORATED INTO THE APPROVED LAND -DISTURBING ACTIVITY TO MEET THIS CRITERIA AT THE DISCRETION OF THE STORMWATER PROGRAM ADMINISTRATIVE AUTHORITY. (B) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET. QDEVELOPED <= I.F. * (QPRE-DEV. * RVPRE-DEV.) / RVDEVELOPED UNDER NO CONDITION SHALL QDEVELOPED > Q PRE-DEV. NOR SHALL QDEVELOPED BE REQUIRED TO BE LESS THAN THAT (QFOREST RVPRE-DEV.)/RVDEVELOPED OR IN ACCORDANCE WITH ANOTHER METHODOLOGY THAT IS DEMONSTRATED BY THE VSMP AUTHORITY TO ACHIEVE EQUIVALENT RESULTS AND IS APPROVED BY THE BOARD. (2)"NATURAL STORMWATER CONVEYANCE SYSTEM" MEANS THE MAIN CHANNEL OF A NATURAL STREAM AND THE FLOOD -PRONE AREA ADJACENT TO THE MAIN CHANNEL OR, (3)"RESTORED STORMWATER CONVEYANCE SYSTEM" MEANS A STORMWATER CONVEYANCE SYSTEM THAT HAS BEEN DESIGNED AND CONSTRUCTED USING NATURAL CHANNEL DESIGN CONCEPTS. RESTORED STORMWATER CONVEYANCE SYSTEMS INCLUDE THE MAIN CHANNEL AND THE FLOOD -PRONE AREA ADJACENT TO THE MAIN CHANNEL. (A) THE DEVELOPMENT SHALL BE CONSISTENT, IN COMBINATION WITH OTHER STORMWATER RUNOFF, WITH THE DESIGN PARAMETERS OF THE RESTORED STORMWATER CONVEYANCE SYSTEM THAT IS FUNCTIONING IN ACCORDANCE WITH THE DESIGN OBJECTIVES. (B) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET. SEE 19(B)(1)(B). zU 0 V) z 04) rn o � 0w �uo0 d Z � Q U f� .moo= W OQ 0_j0 z0 00�� V o> ((orzzfr 0)00 �.j LE Z rn d 0 j = F� d w U WIr �o��� PyT H p j,. GIG' r o \ Q1 ,� a�,ytiC� Dustin E. Greene Lic. No. .0 55833 q,4 Poi 10/14/22 ti�� �`SSI ONAL 10 W Lli UQ za- cr W ___J Q Q z O Z O z W c) z O rr W � z W o CWC W G U >W z cn o 06 FJ5 z Q Q UCE U) w Q LLJ O d U w 0 z 0 w m w 0 O z DRAFTER: DEG DESIGNER: DEG PRODUCTION: ZQD DATE: 29 JULY 22 SCALE: AS SHOWN WPO: FILE: 22.3335 SHEET: 5 OF 6 CE CONSTRUCTION ENTRANCE STONE CONSTRUCTION ENTRANCE r a- r -I I MWEIIIIIIIII:;:;; L V00T 01 I I �� POSITIVE DRAINAGE COURSE AGGREGATE B TO SEDIMENT TRAPPING DEVICE • MUST EXTEND FULL WIDTH AND EGRESS PLAN VIEW OOF PERATION 12' MIN. RE SECTION A -A SECTION B-B 5:1 DD TEMPORARY DIVERSION DIKE 10, MIN. EXISTING PAVEMENT 10' MIN, Compacted Soil cwD CLEAN WATER DIVERSION DIKE MIN MIN �4.5' MINA 2 TAMP CHECK SLOT FIRMLY 6" TO 2" JUNCTION SLOT T BERM acted Soil -Filter Fabric Clean Water Flow CHECK SLOT I 1 1" TO 2" I I I I 1 1 I 1 1 I VAR. VAR. 6"TO8"MIN. PLAN VIEW cc STAPLINGDIAGRAM *CHECK SLOTS AT MIN. STAPLE FROM N0.113 STEEL WIRE CHECK 50' C-C INTERVALS; 8" STAPLE MIN. LENGTH FOR SANDY SOIL. NOT WITH ALL 6" STAPLE MIN. LENGTH FOR OTHER SOIL INATIO "COMBREQ.- N"BLANKETS 6" TO 12" SOURCE: VDOT ROAD AND BRIDGE STANDARDS TERMINAL FOLD rTAMP FIRMLY 2" 4" PLATE: 3.36-: SF) SILT FENCE CONSTRUCTION OF A SILT FENCE (WITHOUT WIRE SUPPORT) 1. SET THE STAKES. 2. EXCAVATE A 4" X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. 6'MAX. i FLOW 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. FLOW 4• 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) I I POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) ciP CULVERT INLET PROTECTION SILT FENCE CULVERT INLET PROTECTION `DISTANCE IS 6' MINIMUM IF FLOW 17 IS TOITARD EMBANKMENT FLOW OPTIONAL STONE COMBINATION FLOW " VDOT #3, #357 OR #5 COARSE TO REPLACE SILT FENCE IN " H(mmirivc wnv HIGH VELOCRY OF FLOW IS EXPECTED I RIPRAP PERMANENT SEEDING MIXTURES FOR Ps THE PIEDMONT AREA TABLE 25 TOTAL LBS. PER ACRE MINIMUM CARE LAWN - COMMERCIAL OR RESIDENTIAL 175-200 LBS. KENTUCKY 31 OR TURF -TYPE TALL FESCUE 95-100% IMPROVED PERENNIAL RYE GRASS 0-5% KENTUCKY BLUEGRASS 0-5% HIGH MAINTENANCE LAWN 200-250 LBS. KENTUCKY 31 OR TURF -TYPE TALL FESCUE 100% GENERAL SLOPE (3:1 OR LESS) KENTUCKY 31 FESCUE 128 LBS. RED TOP GRASS 2 LBS. SEASONAL NURSE CROP* 20 LBS. LOW -MAINTENANCE SLOPE (STEEPER THAN 3:1) KENTUCKY 31 FESCUE 108 LBS. RED TOP GRASS 2 LBS. SEASONAL NURSE CROP* 20 LBS. CROWN VETCH** 20 LBS. TOTAL 150 LBS. *USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED BELOW: FEBRUARY 16TH THROUGH APRIL 30TH............ ANNUAL RYE MAY 1ST THROUGH AUGUST 15TH ................ FOXTAIL MILLET AUGUST 16TH THROUGH OCTOBER 31ST........... ANNUAL RYE NOVEMBER 1ST THROUGH FEBRUARY 15TH ........ANNUAL RYE *`* SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF FARMVILLE, VA (MAY THROUGH SEPTEMBER USE HULLED SERICEA, ALL OTHER PERIODS, USE UNHULLED SERICEA.) IF FLATPEA IS USED IN LIEU OF CROWNVETCH, INCREASE RATE TO 30 LBS./ACRE. ALL LEGUME SEED MUST BE PROPERLY INNOCULATED. WEEPING LOVEGRASS MAY BE ADDED TO ANY SLOPE OR LOW MAINTENANCE MIX DURING WARMER SEEDING PERIODS; ADD 10- 20 LBS./ACRE IN MIXES. OPERMANENT SEEDING FERTILIZATION PIS AND MAINTENANCE TABLE 24 Maintenance Fertilization for Permanent Seedings Use Soil Test Recommendation or Rates Shown Below Seeding Mixture Formulation Lbs. per LIDS. per Time Mowing Acre 1000 sf Tall fescue makes 10-10-10 500 11.5 Yearly, or as *Not closer than 3" if up 70% or more or 400 9.2 needed fall occasional mowing is of cover. 30-10-10 desired. Crownvetch Spring the year Do not mow crownvetch Service lespedeza 0-20-0 400 9.2 following establishment Birdsfoot trefoil and every 4-5 years thereafter. Fairly uniform Fall the year Not required. not closer stand of Tall following than 4" if occasional Tescue & Service 5-10-10 500 11.5 establish- ment mowing is desired, and lespedeza, or and every 4-5 then in fall after seed Birdsfoot Trefoil. years thereafter. has matured. Weeping Spring the year Not required. not closer Lovegrass & following than 4" if occasional Service lespedeza 5-10-10 500 11.5 establishment mowing is desired, and fairly uniform plant and every 3-4 fall after sericea has distribution years thereafter. matured. Red & chewin s 9 20-10-10 250 5.8 September, 30 Mow no closer than 2" for red fescue and Ky fescue, Kentucky days later December, May bluegrass; and closer bluegrass, hard 20-10-10 100 2.3 20-June-30, if than 3" for fescue. fescue mixture: needed. TEMPORARY SEEDING MIXTURES FOR Ts THE PIEDMONT AREA TABLE 26 TEMPORARY SEEDINGS BY RATES, DEPTHS, AND DATES Seeding Rate Planting depth JL Seeding zones (1 and Seeding Date I� Species M Per Lbs/1000 7a and 7b 6b 6a and 5b acre Sq. ft (Inches) 2/1- 5/1- 8/15- 3/1- 5/1- 8/15- 3/15- 6/1- 8/1- 4/30 8/14 11130 4/30 8/14 11/15 5131 7/31 10/31 Choose one: BY BY BY Barley 2.5 bu. 2.80 1-2 X - 10115 X - 10/15 X - 10/1 Oats 3 bu. 2.21 1-2 X - - X - - X - - Rye (4) 2.5 bu. 3.22 1-2 X - X X - X X - X a %or Rye 10/15 10/15 10/1 us 150 lbs. 3.45 1 X X X X X X Foxtail X X X X X X X X X millet 5 Weeping 41bs. 0.09 1/4-1/2 - X - - X - - X - lovegrass U6 Annual ryegrasS 50 lbs. 1.15 114-1/2 X - 11/1 X - 11/1 X - 8/15 Millet (7) 50 lbs. 1.15 1/2 - X - - X - - X - (1) Applicable on slopes of 3:1 or flatter (2) Refer to figure A -Adopted from USDA, ARS Miscellaneous Publication #1475, January 1990 (3) Between fall and spring seeding dates, use mulch only if ground is frozen and reseed when thawed (4) May be used as a nurse crop for late fall/early winter permanent seedings, add 56 Ibs/ac. to the permanent seeding mixture (4) Maryland State Highway Administration Temporary Seed Mix (5) May be used as a nurse crop for mid -summer permanent seedings. Add 2 Ibs/ac to permanent seed mix. (6) May be used as a nurse crop for mid -summer permanent seedings. Add 10 Ibs/ac. to the permanent seeding mix. sT SEDIMENT TRAP TEMPORARY SEDIMENT TRAP r z 67 CU. YD./ACRE \ (EXCAVATED) 4 MAX FILTER CLOTH ORIGINAL A = 789.0 GROUND ELEV. -SEE PLATE 3.13-1 COARSE AGGREGATE!* CLASS I RIPRAP CROSS SECTION OF OUTLET CLASS I RIPRAP LENGTH (IN FEET) _ 6 X DRAINAGE AREA IN AC.) /DIVERSION DIKE COARSE AGGREGATE \ / ( EXCAVATED FILTER CLOTH AREA ••COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) TEMPORARY SEDIMENT TRAP CALCULATIONS WEIR DRAINAGE WET WET DRY DRY No. A B C H Z LENGTH AREA VOL. VOL. VOL. VOL. (ft.) (ft.) (Acres) (RE ( REQ.(ft.) ((C>) ((ROj.) (CY)) 1 432 436 438 3.0 1.5 6.0 0.99 67 70 67 75 2 432 436 438 3.0 1.5 9.0 1.37 92 105 92 101 3 411.5 415.5 418 3.5 1.5 17.0 2.82 189 1 190 189 199 Note: ui See VDOT Road and Bridge Standards. I c Std; PE-1 for cut/fill details 1 '2 1 All entrance grades shall start back of I n � the shoulder line. I 130 If drainage Is necessary, the ditch line may be moved back to provide 9 inches I o (min.) cover over pipe. IwE 7 IaE Pipe culvert if necessary Ditch flow line Entrances shall be 12 ft wide and transition smoothly Into the roadway surface. Driveway entrance pavement shall extend to the right of way line. When an existing street is re -developed and modification of an existing driveway entrance is required, the entrance pavement shall be extended to the right of way line or the extent of disturbance to the existing driveway- 12 FT. 3� Surfaced -16Ft. SUpm Graded ;G R=20' Min. Shoulder Edge of Roadway Pavement Roadway Pavement FIGURE 9 - PRIVATE ENTRANCE DETAIL* oP OUTLET PROTECTION SECTION A -A FILTER APRON LINING SHALL BE _ET TO DINED :150 = 0%- "d= T KEYIN-.. RECOMMENDED FOR ENTIRE PERIMETER =1O� � W �3� w '� a Outlet Protection Table Culvert Pipe Diameter (in) Discharge (cfs) Apron Length (ft) Upstream Apron Width (ft) Downstream Apron Width (ft) Stone Depth (in) Ri rq p p Stone Size A 2-18 21.89 20 9 top of channel 18 Class 1 B 15 1.94 8 4 6 12 Class 1A C 15 3.97 8 4 6 12 Class 1A U O z 04) O 0) CM OU ui uD0 Ou > O Ou OQ 0 J a7 m z(D OU�� � > GO it 0)00 h•rj ILLi Z W CC d tr am: 0 a-F� Go w Q 11 PyT H Op GIG' r o Dustin E.EGreene Lic. 55810/1+ FISSIONAL E�Ol _J LU UQ w z�06 W J UD Q O LLJ O 0 _J W O rr W O � U W o W z (n W WW z W 3: 06 0 � _ O O rr rn W U) V J M W z O d U U w 0 z O w m m w O z DRAFTER: DEG DESIGNER: DEG PRODUCTION: ZOD DATE: 29 JULY 22 SCALE: AS SHOWN WPO: FILE: 22.3335 SHEET: