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HomeMy WebLinkAboutWPO201300044 Plan - Revision Minor Amendment 2014-06-20LEG + Nle► PROJECT NOTES: EARTH DITCH EXISTING CULVERT Sheet Title CUL VERT A DROP INLET & STRUCTURE NO. EROSION & SEDIMENT CONTROL PLAN CURB ------------- 2GG------------- CURB & GUTTER _<� PROPOSED PAVEMENT 24x55 EC -3A DiTCH 6" DEPTH OF EC-3A'DITCH PHASE II STORMWATER MANAGEMENT PLAN EC -2 DITCH g^ DEPTH OF EC -2 DITCH PROJECT NOTES: EARTH DITCH OWNERS.- DRIVEWAY CULVERT Sheet Title BENCH MARK COVER CLEARING LIMITS EROSION & SEDIMENT CONTROL PLAN VDOT STANDARD STOP SIGN ------------- 2GG------------- EXISTING CONTOUR _<� PROPOSED CONTOUR 24x55 PROPOSED SPOT ELEVATION f TBC DENOTES TOP/BACK OF CURB PHASE II STORMWATER MANAGEMENT PLAN TAB DEN07ES TOP OF BOX OWNERS.- AVON PROPERTIES, LLC (TMP 91-14) Sheet Title (ORIGINAL PROPERTY LIMITS) COVER PO BOX 1467 EROSION & SEDIMENT CONTROL PLAN CHARLOTTESVILLE, VA 22902 EROSION & SEDIMENT CONTROL NOTES & DETAILS MOSS ACQUIS177ONS LLC (TMP 91-16C) STORMWATER MANAGEMENT PLAN & CALCULATIONS (PRIMARY LOCATION OF AMENDMENT) STORMWATER MANAGEMENT PLAN & CALCULATIONS 321 E. MAIN STREET PHASE I STORMWATER MANAGEMENT PLAN CHARLOTTESVILLE, VA 22902 PHASE II STORMWATER MANAGEMENT PLAN HUGHES, WALLACE B & IDA MARIE (TMP 91-16E) STORMWATER MANAGEMENT DETAILS (ADJACENT PARCEL w/ IMPROVEMENTS) HEALTH DEPARTMENT 107 CULPEPER ROAD RICHMOND, VA 23229 DEVELOPER. RiVERBEND MANAGEMENT COMPANY CONTACT.ALAN TAYLOR 110 EAST MAIN STREET CHARLOTTESVILLE, VA 22902-5220 (434)293-7537 TAX MAP/PARCEL # 91-14, 91-16C AND 91-16E MAGISTERIAL: SCOTTSVILLE DISTRICT AREA: 2.47 AC. (TMP 91-16C) & 5-000c. (IMP 91-16E) ZONING: A WNI TY— PRD — ZMA-2006-005 APPROVED JUNE 13, 2007 VARIATION REQUEST WAS APPROVED 3/26/10 FOR THE FOLLOWING VARIATIONS FROM THE APPROVED REZONING. • CHANGE IN THE MIXTURE OF UNITS TO 24 CONDO AND 100 TOWNHOUSE UNITS • REMOVAL OF SYSTEMS OF RETAINING WALLS • —ORN OF UNITS AND PRIVATE STREETS RE IENTA 770 • ADDITION OF A NEW ROAD TMP 91-16C: CURRENTLY ZONED R-1 TMP 91-16E.• CURRENTL Y ZONED R-1 USE RESIDEN77AL SETBA CKS:E X7ERNAL SETBACKS ARE AS FOLLOWS FOR APPROVED A V7NI TY FSP: REAR= 20' SIDE= 15' FRONT= 25 TMP 91-16C SETBACKS ARE AS FOLLOWS.• REAR= 20' SIDE= 15' FRONT= 25' TOTAL NUMBER OF UNITS: THERE ARE NO PROPOSED UNITS WITH THIS WPO AMENDMENT, 7HOUGH SWM AND ESC YEASURES HAVE ACCOUNTED FOR THE APPROVED A VINI TY PLANS ON FILE (100 TOWNHOUSE UNITS AND 24 CONDOMINIUMS) AND FOR FUTURE DEVELOPMENTS WI THIN 91-16C, 91-16E & 91-16A. WA TERSHED: MOORE'S CREEK WA TERSHED TOPO & SURVEY AWNITY DEVELOPMENT'S PHYSICAL AND BOUNDARY.• THOMAS B. LINCOLN LAND SURVEYOR INC, DATED 12/22/05. IMP 91-16C's PHYSICAL AND BOUNDARY.• ROUDABUSH AND GALE, DA TED 2/8/13 AVINITY DEVELOPMENT'S ASBUILT SURVEY PERFORMED BY ROUDABUSH GALE AND ASSOCIATES IN MARCH OF 2012. TMP 91-16Cs ASBUILT SURVEY PERFORMED BY ROUDABUSH GALE AND ASSOCIATES IN FEBRUARY OF 2012. TMP 91-16A's TOPOGRAPHY PERFORMED BY ROUDABUSH GALE AND ASSOCiA TES IN AUGUST OF 2013 DATUM: NAD 83 SOUTH BENCHMARK: BENCHMARK IS SURVEY CONTROL POINT DT -14, NAiL WITH FLASHER LOCATED AT N3886228.20 AND E11482674.79, ELEVA77ON 574.16 EXISTING VEGETA TION: PROPERTY (IMP 91-16C) CONSISTS OF A RESIDEN77AL HOME AND LAND THAT iS PARTIALLY CLEARED. FLOODPLAIN: THERE IS NO FLOODPLAIN LOCATED ON THIS SITE. FEMA MAP ID 51O03CO40;7D LANDSCAPING: LANDSCAPE IS IN ACCORDANCE WITH ALBEMARLE COUNTY ZONING REGULATIONS 32.7.9 FOR THE APPROVED A WNI TY TOWNHOUSE DEVELOPMENT. NO LANDSCAPING iS PROPOSED OR REQUIRED FOR IMP 91-160 TO PjmmoNt) Tf 64 -- 04"T PIEDMONT VIRGINIA COMMUNrTY COLLEGE SOUTHERN PARKWAY MILL CREEK MON77CELLO HIGH LAKE REYNOVIA Q \\ MILL CREEK \ SOUTH LE ELEMENTARY I4 LJ SCHOOL THIS ��• %%" ' PROJ) O� Q VICINITY MAP SCALE: 1" = 2,000" WPO AMENDMENT PLAN SCOTTSVILLE DISTRICT ALBEMARLE COUNTY, VIRGINIA A 5 l' ...-.-...__-..-- I � J }� /,'1'1\��♦; ,✓ I ,' PcJ'l13 OUNTY C s __., f . r 1 ,, _� t ,- r r r.--_--L�C�7'-'t1�3J.1.-j--__...._:`."�! •-'��,✓��fTl f/ � ! � ' � � � . \ ♦ 1 .� i' \\e I \ t / / { } Z Ei R,•1 r♦V > 1 t 7 7 — 1 t i r I I r ,t s. { _ "! r !r .- ._... _... ,��,�✓/f / rt/ rfl I/ / /r ✓/ /t f 7 / 1f ✓'f ,•f � j t j 1E 1f r rj t 11 r ♦`' � r~ � r,/ r f f 1 iii y t rr / rr�. ._ i /' ✓/ i ' '' t rt r 1 r' r i fr ♦♦ — ` _ _ LS.P �- /` ✓ ,� r / r ✓ r ' i t ! u / f r ♦ - P./HA,Y,yNES— — � \ � i i `, 1 r' r�%'/ r Jrl � r �\ \ r t � r �' - � ' �' '✓ ' r � .r r� LIE LJ'1 t t t i \ t 14t i t t LOT0 t 7 _ TMP\ 9OD-70 OT 69 TMPD , , ! 90D-69 zz 11#i 1t 511 ' ittl TMP 900-013 ' D.B. 1528 t 2/1 �P. 708 PLAT r, .,;:' ✓ �,• � � w�rt�i� � --. � 1r I-t..�t,,,,, ..++�.,... ++.-^, �t� � ' al ..,1M' s: � R , ' I i v °x __ _ w.r��+�,'...ri.,r,�rinlY'-.7�`,r��✓,�..M... Y°�I��i�W,Iii.. � � .. R.•� //�7rA�k:•✓�Y�/A,.vi+>y�£'�,y cA ', .. � �. � �a����}.�m��w�a3 - - w f4 :IMS 0R[ w� NINE el'.i s `i { f 1TMP' r9k -3 \• j'- "� \ e\ \ "•., f ,.1..-=, t t 1 1 `t`A•. e i i `� t' /,/ 'r /' w� ;'"'•,_,.. ( { / 4 ~\ 4 1 RAJ.fN ♦ , ZONE: R-1 � - -• . . t e' , r , J k r s r i r 1-TMFS 90-35A JERRY �� 1 I 1 �IJN MOSS) t \ ) to \ it 11 f r 1 ( i 1 f f { r f ),-r f ^/ r" ` / `,`l /' tF ! t SR. A ♦ i t r e 1 1 t + i V I i f # f ( if gyp, _ ND LAURA �. \ \ r 1 c y� t�^ 3 G MOS { WI I e J e i r. 1, \ P e � 1 1 ,f �j � �V 7 1 5 z � r \ \' i l / s e f e � �-•� \ t i � iJ \ i i { - t 2—r e Nt ETT I r r R..'i ti ,�y 1 ARBOUR s 1J . t I�` r 1 r � e ; rF` r . �` p 1 \ \ ♦ \ `, . ♦ l I I I I .�lidlRrSu F�.IfO,�S ' t 'il I { 1 t i. ✓ ! ,� ' / :=i'f111P ;� ,.:(6E ;, l< r, / 1 \ t \ \ i t I I i 4 t i Tri �✓ i J !A/J ' gy p 1/ V -1, r i S e A A A\i 1 1 S i 1' 1Z4�NE � lR-1 e\ 1 t l \ f{�� { {r ✓ ✓/' �/r Qat/ J r WALCE'B. i ��� i t f f / d t \ 1 Ae e1♦ i1 1 � } fl J 1 f r { III �A♦ \ I � t F \ f f ! ' /✓i �� ' � �� . / Jar'' _ ;%' .----'`AND iC/A M:'\,L_L f lr ff ✓ ✓� Jy,"' % , y HUGHES 't `I TMP 90-35D HYDRAULIC r �' J , - ''` - -ZONE.-' R-1 s , .' SAND COMPANY, INC. D.B. .` f , 862 P. t 200 D.B. 781 P. 472 PLAT r f' ,.M Y ; TMP 90-35B J /r J r ✓ . f j! E SOUTHSIDE CHURCH OF GOD D.B.k 839 P. 32 ' ug I D.B. 755 P. 353 PLAT✓ -l- 1 -_ i CURRENT ! M OSS A CQ UISI O 321 E MAIN STREET VA • HUGHES .. WALLI ACE B & IDA MARIE 107 CULPEPER ROWIFAID Sheet List Table Sheet Number Sheet Title T-1 COVER ESC -1 EROSION & SEDIMENT CONTROL PLAN ESC -2 EROSION & SEDIMENT CONTROL NOTES & DETAILS SWM -1 STORMWATER MANAGEMENT PLAN & CALCULATIONS SWM -2 STORMWATER MANAGEMENT PLAN & CALCULATIONS SWM -3 PHASE I STORMWATER MANAGEMENT PLAN SWM -4 PHASE II STORMWATER MANAGEMENT PLAN SWM -5 STORMWATER MANAGEMENT DETAILS ill 11 , l��� I RIVERBEND MANAGEMENT COMPANY 110 LP.14ST MAIN STREET if VA 22902 43-4. 293.7"y"513`7 i i e TMP 91-- I6D_,., \ .fi\0L DINGS -LLC- _ yam. fit 4 `,-"I ' '�'�'''�•^^����•'''����.---�����..,�av�......����y� .':1 . . : . t,l :I , 4 t t f {''''''•' '{ `•'moi �;•'::.;:�:;:;:;'.<;�;.:::;::;;''................. . 'tY TMP 9_1I z AdBEMARL AjRTE f ♦, NIOUN A Np I l NIANAG�ME T t C LL CO `ILLC TRUS EF ETAL / - — — ` 1 &\ 1 S6OTTSVILLE QLDI ' �%1 4 ,�t N� f-1..���yy�•E -�1`�t ,, , yf� t r rr ENGINEER COLLINS S NIEE INS t 800 EAST JEFFERSON STREET,� F CHARLOTTESVILLE, VA 22902 434.293.3719 _ APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOPMENT PLANNER/ ZONING ENGINEER Z ® INSPECTIONS ARB z 1 PLANNING DEPARTMENT OF FIRE RESCUE ALBEMARLE COUNTY SERVICE AUTHORITY { ' VIRGINIA DEPARTMENT OF TRANSPORTATION HEALTH DEPARTMENT c 0 SCOT R. COLLINSZ I," No. 35791 ,� ��SsjaNAL E��1 W ` d e-1 tt � Q fV a> Q. D 0— 1 L V-� Zi C Z _° cz a �L_ W L �Z �(f v az �c z �0 o w_ LLJ U C W0—, pQ. Q. c O ` •� C U p} C U a 0 Q � G a i k a 0 c: c a s E� �_c � •3 bi_F W_F LLIV F Z. �� - �C �` zLLIr c O c O oc �c c c 0- c o c a_c > s �c U C x NriL ri c c W v c �_c c -z W a O W U E )OB NO. � c 092033 a_c 0 0 a SCALE 0 AS NOTED 6 ._ U i c a a> SHEET NO. Q a �G T-1 `3 + s .� O z 0 Z ® _j ¢ l Uj z 1 i { ' W c W ` d e-1 tt � Q fV a> Q. D 0— 1 L V-� Zi C Z _° cz a �L_ W L �Z �(f v az �c z �0 o w_ LLJ U C W0—, pQ. Q. c O ` •� C U p} C U a 0 Q � G a i k a 0 c: c a s E� �_c � •3 bi_F W_F LLIV F Z. �� - �C �` zLLIr c O c O oc �c c c 0- c o c a_c > s �c U C x NriL ri c c W v c �_c c -z W a O W U E )OB NO. � c 092033 a_c 0 0 a SCALE 0 AS NOTED 6 ._ U i c a a> SHEET NO. Q a �G T-1 `3 + s .� ✓w / �, CON RACT SHAL MODIFY C w j /f 1 EXI RIPRAP DITCH OUTFA41-TQ ON AC?� R AL FIELD FIT ���1/ '' TH ORIENTATI N SHOWN ON THELISTIN CE / ODI STR. IN C RDANCE y CONSTRUCTED F VDo STDLc-� / DITCH / "r ' ' - • - / 2'UTFALSHALL NOT BE DISTURBED r' d- \ TH PRO OS D LANE.,. ' 0' WIDE RIPRA TYPE II, CL. RIPRAt� w/ FIL ER t i CONTRACTOR/SHALL INSTALL CONTRACT R S . AL. INSTALL TRAPEZOID A PAVE CONSTRUCTION ` / CHANNE FABRIC U DERL AYME WJ W/ E ,f; ___ 06V / T INLET PR TE I N ON ST T CONTRACTOR s LL EN URE SF ®' ' '-- — BA BACKING ENTRANCE s2' ' /J LIMIT WPVST EAM ER SION. " : ;,;' POSIT DRA AGE TQ SWM 5 �, OP = ( x7o MIN.) f! U��` O LOCATED OVER THE EXISTING----` - `%(tlLITYWI %MIN; SLOPE / f, GRAVEL ROA TR. 4 d / •5 VDOTSTD• EW, wIOUTLETP90TECTJON. - o' W OP DAM/SAFETY VDOTCLASS11, F,,.C-- R/PR.4Pw/ IP h ! �. - o / GE07-EXTILEFABR/CUNDERLAYMENT W WIRE / /' / � h % NCH ELE = 502' (TYP.) r J �-� x� �' W==75\. S. =zo, 0=a.5'(M/N� SF BACKING- c / / r w/WIRE SIF vDQT 5JD - - _ / , / t r' S ACKING EW-sH€ADWALL _ }� 4 w W �" f / .s „ r' .� `' ' ` -' -"._'� \ e�r.a �. $k f a'S'`\ Z E=i / M- / /' f r s. / - w - II ! f/ 1 - 35' RIPRAP LINED / _ - - _ ..._ _ ~ " _ - w ! f EMERGENCY -+rave! ! -- _ __ _ .._ ._ - — — _ _ — ® ¢ Z w r„s ,Jt uj I / / / r/ p .5 / / r f ' �' SPILLWAY f - — ---- EL V._ � E _ 06 S - cc ~ L J! DR 1 � V i E ca <:t WAY +� ce j ♦) W r ._.--. ge7� V -- +: vr-- \00g I I "'---- _ --- — - — ¢ i .\ o s<: \ a /NTRACTOR. SHALL NOT_ _. _ - � / 1' •• / J M , cid � � � -. ,; _ « �D,15THR EXIST ELL z .,, - f ,,, ING W _ \ - l H O ' f f _., ' ' ' ' .. •• .�, TRACTOR SHALL INSTALL a' DEEP SEDIMENTTRAP w/2:2SIDESWPFS IMMEDIATELYDOWNSTR . — — - _ _ _ _ __. _.._ — _ _ - — -- w EAM OF WAS ,..- — ., .. -.,.,,� � ce RACK. TOP OF TRAP DIMENSIONS ARELu APPROXIMATELY 'W x zo'L — r _ __ En 4 - ONTRACTQB SHALL UT1Lt�E / — _ __ .___ __ _. — _... _ _ ` Z - _ _ LEVEL AREA �IACENT.T6` �- �`"-"``--- �' \ c� d ce PR / OP -- OSED 7KIN�IG FOR". \ x'•;•.•:: STAGING&Pi • ' • . . ' . ' . ' . • : • '. . ' . � ' . • . - .•,.•.,.•.•,.1. • PROPG?SARES _ �. J' —_"-- �,. --.. wT E X STING RISER & \ \ �::: !� a- ,illEn sat.. l \ } c \ T - '' ;t M R IL i N ri d .:: r s 1 I�P Ei2 y6 t O STR., SHALL -RCP BARREL h r i .,Z REC�DNF{GL1REb`D, R!VFWAY.. o / BE D N AFTER THE:':' '.': \...::. -- ,% -•. •SHA�;L•:f?t2t1VID � bD \ \ � .... �.A ED SAFE.: M F ILIi�Y HAS BEEN r - 1 d 1 / / / 1 \ ti / 1 1 N T L � E T H I EX T! S N / i r i t S I E TBASIN f HAS BEEN A. . APROV D OBER REMOVED 0 CL. ill RCP / r ..'•..',::' RISER KIM FF=507.46 % IY T E U TY lNSCTOR. ' qy i.' ..''.' a K w ✓ I\ r ELEV.= / (basement) \ w j d to 1 LL 49$ # \ 1 - � .- Fra 0 ,n 1 S I- i � f /¢ d - CON R/� RSHALL ABjANDON � •' I ..�..:. , , .... � j f .� ,� W/basement XSINGEMP. STUB PIP INTO gravef I : =515.88 t \ \ T EE , / 1 FF , N B `- - T a BASIN &LUG � .� 1 T i j t� v.$ 5 t 1 I 1 iP•JERI; / u. T NLET AFTER HE I I s 1•' r 'ti \ FA ILITYHASBEEN '.','.'t.'.' .,.•... .;:. _ � r r' :•, J -i t\ -., EROSION CONTROL c S1 1 1 1.- DD 7 ST mownow 7 SB <llU11 D IP ---t&O'A- fl SF 7y X X CE cl� C FD , i DV --0- POP- L PS PS f TO TO ClP t t/lRG1NiA EROSION &SEDIMENT CONTROL EROSION IIJN OG �J EDIMENl t�VNTROI ER�,/SI01Y CONTROL Ll.®L NQT S DESCRIPTION OF EROSION & SEDIMENT EROSION CONTROL NOTES & NARRATIVE HANDBOOK SPECIF7CA TION NUMBER Latex Emulsion ANNUAL RYEGRASS MEASURES: CONTROL MEAS r�REeJ (LOLIUM MULTI-FLORUM) 50-100 Resin in Water � MEASURES: : ES -1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND C✓ - PC%RPOSE: BARRIER 304 1W BAIL B STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE WITH 774E S EDlMEN T CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF 711E VIRGINIA EROSION AND EROSION AND SEDIMEN CONTROL AS ER 0 T LME URES.• THE PURPOSE OF THIS LAND -DISTURBING ACTIVITY IS TO CREATE A STORMWA TER MANAGEMENT FACILITY FOR A Coarse SPMY VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRAC77CES USED IN THIS SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION IT 1S ANTICIPATED THE USE OF A CONSTRUCTION ENTRANCE, SEDIMENT BASIN AND SILT RESIDENTIAL HOUSING DEVELOPMENT FOR THE AWNITY TOWNHOUSE COMMUNITY. MINOR LOT GRADING AND EROSION & 'ORARY DIVERSION DIKE 3.09 SECTION CONSIST OF 774E FOLLOWING- AND SEDIMENT CONTROL REGULATIONSFENCES TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY SEDIMENT CON7ROL MEASURES ARE PROPOSED WITH THIS PLAN TO ACCOMMODATE 711E DEVELOPMENT. THE TOTAL WITH VA E&S STD 3.355. ES -2. THE PLAN APPROVING AUTHORITY MUST BE N071FIED ONE WEEK PRiOR TO THE FOLLOWING ALL LAND DISTURBANCE AC77VI77ES. TEMPORARY STOCKPILE AREAS WILL BE ACREAGE TO BE DISTURBED IS 1.38 ACRES AND CLEARING IS PROPOSED. ORAR Y SEDIMENT TRAP 3.13 3.01 SAFETY FENCE: A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT' OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO 774E FINAL INSPECTION. MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM S TO M OM AREA BE GRADED AND STORED EXI MG SITE CONDITIONS. THE EXISTING SITE CONTAINS A SINGLE FAMILY RESIDENCE, GENERALLY SLOPING NORTHWARDS TO A STREAM PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY 711E PUBLIC. APPLICABLE ES -3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR FOR LATER SPREADING. STOCKPILE LOCA77ONS SHALL BE ON S17E AND SHALL BE STABIL/ZED APPROXIMATELY PARALLELING THE NORTHERN BOUNDARY. THE SITE IS GENERALLY WELL DRAINED AND EROSION AND MEN BASIN 3.14 TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE AS THE FIRST STEP 1N CLEARING. WITH A TEMPORARY VEGETA77VE COVER. PERMANENT SEEDING WiLL BE PERFORMED FOR ALL SEDIMENT CONTROL MEASURES HAVE BEEN DESIGNED TO CONFORM TO THE EXISTING S17E SLOPE AND PROTECT THE OF P07EN77AL ACCESS BY THE PUBLIC. ES -4. A COPY OF THE APPROVED EROS/0N AND SEDIMENT CONTROL PLAN SHALL BE AREAS WHICH WILL NO LONGER BE EXCA VA TED AND WHERE CONSTRUCTION ACTIW77ES HAVE DOWNSTREAM AND ADJACENT PROPERTIES, INCLUSIVE OF THE S7REAM LOCATED ONSITE. T PROTECTION J.07 J.02 CONSTRUCTION ENTRANCE.' MAINTAINED ON THE S17AT ALL TIMES AND DISTURBING AC71V117ES IN AREAS OTHER THAN ES -5: PRIOR TO COMMENCING LAND CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH ADJACENT AREA, A STABILIZED PAVED CONS7RUCTION ENTRANCE NTH A WASH RACK LOCATED AT POINTS OF INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF-S17E BORROW WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELECTION OF SEED MIXTURE WILL DEPEND ON THE SITE IS BORDERED BY THE APPROVED AVINITY TOWNHOUSE DEVELOPMENT CURRENTLY UNDER CONSTRUCTION THAT IS FENCE 3.05 VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION S17E. TO REDUCE 774E AMOUNT OF MUD OR WA57E AREAS), THE CON7RACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION THE 77ME OF YEAR APPLIED. TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED INTENDED TO BE SERVICED BY THIS PLAN, A KAPPA SIGMA FRATERNITY OWNED PROPERTY TO THE SOUTHEAST AND AN TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONS7RUC770N CON7ROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN SEVEN DAYS THESE AREAS SHALL EXIS77NG SINGLE FAMILY RESIDENCE TO THE NORTH. ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. APPROVING AUTHORITY ES -6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLA77ON OF ANY ADDITIONAL EROSION BE SEEDED W1774 FAST GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE OFFSITE LAND DISTURBANCE.• THIS PROJECT PROPOSES NO OFFS17E DISTURBANCES, BUT DOES REQUIRE PERMISSION TO U77LIZE AN EXIS77NG GRAVEL STRUC7JON ENTRANCE 3.02 CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTA77ON ,AS AREAS SELEC77ON OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. ROAD ACCESS ANY OFFSI7E PROPERTY USED FOR CUT DISPOSAL OR FILL ACQUIS177ON MUST HAVE AN APPROVED 3.05 SILT FENCE: DETERMINED BY THE PLAN APPROVING AUTHORITY. EROSION AND SEDIMENT CONTROL PLAN. A TEMPORARY SEDIMENT BARRIER CONSlS77 OFA SYNTHETIC FILTER FABRIC STRETCHED ACROSS ES -7: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES 3.01 SAFETY FENCE - SAFETY FENCE WILL BE INSTALLED AROUND PROPOSED SEDIMENT BASIN CRITICAL AREAS.' CK DAM 3.20 AND ATTACHED TO SUPPOR77NG POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT AND POTENTIAL FIELD-FIT7FD SEDIMENT TRAPS. CRITICAL SLOPES ON-SITE CONSISTS OF MANMADE AND NATURAL SLOPES. A PORTION OF THESES SLOPES WILL BE AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERA77ONS iN ORDER TO UN77L FINAL STABILIZA77ON iS ACHIEVED. DISTURBED WIT74 THIS WPO PLAN. PREVENT SEDIMENT FROM LEAVING THE SITE, AND T'"O DECREASE THE VELOCITY OF SHEET FLOWS AND ES -8: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED 3.02 CONSTRUCTION ENTRANCE - ONE CONSTRUCTION ENTRANCE 1S PROPOSED AND IT PORARY FILL DIVERSION 3.10 LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN WATER FILTERING DEVICE. SHALL BE INSTALLED OVERTOP OF THE EXIS71NG GRAVEL ACCESS ROAD, 7741S LOCA71ON WILL ML &_ SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS ES -9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY BE THE ONLY POINT OF INGRESS AND EGRESS TO THE SITE, UNLESS OTHERWISE AUTHORIZED THiS SITE CONSISTS OF SEVERAL SOIL TIDES SEE THIS SHEET FOR FURTHER DETAILS 3.12 INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN 7HE EFFECTIVENESS OF THE EROSION CONTROL DEVICES BY 174E COUNTY INSPECTOR. CARE SHALL BE TAKEN TD PROTECT ALL EXlS1TNG ROADS FROM SEQUENCE OF CONSTRUCTION: I. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE-CONS7RUC770N MEETING AS REQUIRED. RSiON SHALL BE MADE IMMEDIATELY. TRANSFER OF SEDIMENT, INCLUDING ROUTE 20. 2. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONS7RUC770N PROCESS WITHOUT THE APPROVAL J.07 STORM DRAIN INLET PRO?E•C770N. AREA AROUND A STORM DRAIN DROP INLET OR EROSION CONTROL NOTES 3.05 SiLT FENCE- SILT FENCE MLL BE PLACED ON THE DOWNSTREAM SIDE OF DISTURBANCE WHERE NOTED ON THE PLANS FROM THE INSPECTOR ON THE PROJECT. MANENT SEEDING 3.32 A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING' J. THE CONTRACTOR SH, ALL NOT INSTALL THE SWM FACILITY UN77L THE COUNTY INSPECTOR HAS GRANTED APPROVAL. 1T CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO General construction notes for Erosion and Sediment Control plans P 3.07 STORM DRAIN INLET PROTECTION- !P WILL BE INSTALLED ON EACH PROPOSED INLET AS iS INTENDED THAT THE SWM FACILITY & ITS STORM SEWER BE CONSTRUCTED IMMEDIATELY BEFORE 774E APPROVED & PERMANENT STABILIZATION OF 711E DISTURBED AREA. INLET PR07E"C77ON APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE i. The plana approving authority must be notified one week riorto the re -construction conferrence one PP g Y P P SHOWN ON THE PLANS. EXIS77NG SEDIMENT BASIN LOCATED WITHIN AWNiTY I IS TO BE FILLED. THIS EXISTING BASIN SHALL BE FILLED ONLY SOILING 3.30 CORRESPONDING DISTURBED DRAINAGE AREA. week prior to the commencement of land disturbing activity, and one week prior to the final inspection. - 3.14 TEMPORARY SEDIMENT BASiN A TEMPORARY SEDIMENT BASIN, WHICH WiLL LATER BE AFTER PHASES 1 & J/ HAVE BEEN CONSTRUCTED &STABILIZED. THE EXISTING STOCKPILE LOCATED ill PHASE A SHALL USED FILL THE SEDIMENT BASIN LOCATED IN PHASE /V TIMING WILL ALLOW FOR PHASES 1If & OF AV/NiTY 2. All erosion and sediment control measures will be constructed and maintained accordingto minimum CONVERTED TO A PERMANENT SWM FACILITY, WILL BE INSTALLED AND MAINTAINED WHERE E 1 TO BE RELATIVELY LEVEL AND PROTECTED WI77-I SILT FENCE. CONTRACTOR SHALL STAKE 774E LIMITS OF E F 3.08 J. 18 OUTLET PROTECTION.* standards and specifications of the Virginia Erosion and Sediment Control Handbook and Virgiinia SHOWN ON THE PLANS: DISTURBANCE ON-S17E & CONSTRUC770N OUTSIDE OF 774E LIMITS OF DISTURBANCE /S PROHIBITED. P OTECTIONES VERT INLET RSTRUCTURALLY LINED APRONS OR OT74ER ACCEPTABLE ENERGY DISS/PA77NG DEVIC PLACED AT 774E OUTLETS OF PiPES OR PAVED CHANNEL SEC77ONS. TO PREVENT SCOUR AT STORMW47ER OUTLETS, Regulations VR 625-02-0o Erosion and Sediment Control Regulations. 3.18 OUTLET PROTECTION- TO BE PROVIDED AT THE OUTFALL OF DRAINAGE PIPES WHERE 4. INSTALL A PAVED CONSTRUCTION ENTRANCE OVER THE EX/STING GRAVEL ROAD Wl7N WASH AREA AS SHOWN ON THE TO PROTECT THE OUTLET STRUCTURE, AND TO MINIMIZE THE POTEN77AL FOR DOWNSTREAM EROSION All erosion and sediment control measures are to be laced prior to or as the first step in clearing. 3 P P P 9 SHOWN ON PLANS. PLANS. A SEDIMENT TRAP SHALL BE INSTALLED IMMEDIATELY DOWNSLOPE OF 774E WASH RACK. THE CONSTRUCTION J. BY REDUCING 774E VELOCITY AND ENERGY OF CONCENTRATED STORMWATER FLOWS. APPLICABLE TO 4. A copy of the approved erosion and sediment control plan shall be maintained on the site at: all times. 3.19 RIPRAP- RIPRAP SHALL BE INSTALLED AS OUTLET PROTEC77ON WHERE SHOWN ON THE ENTRANCE SHALL BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT THE EXISTING GRAVEL ROAD, T CONTROL THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL SECTIONS Priorto commencing land disturbing activities in areas otherthan indicated on these plans (iincludin but S• g g P gf PLANS. RIPRAP IS ALSO PROPOSED AT SPECIFIC LOCATIONS NO ON THE PLANS. PROVISIONS SHALL MADE MINIMIZE INE TRANSPORT SEDIMENT (VEHICULAR) TRACKING ONTO THE PAVED not limited to, off-site borrow or waste areas), the contractor shall submit a supplementary erosion control 3.31 TEMPORARY SEEDING- TEMPORARY SEEDING SHALL BE APPLIED WHERE SHOWN ON 774E E SURFACE. WHERE SEDIMENT /S TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL B£ CLEANED S LI FA 3.19 RIPRAP: plan to the owner for review and approval by the plan approving authority. PLANS. THOROUGHLY AT 774E END OF EACH DAY. SED/HENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRAIVSPOR77NG PORARY SLOPE DRAIN 3.15 A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER 6. The contractor is responsible for installation of any additional erosion control measures necessary to TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED FABRIC OR GRANULAR UNDERLINING TO PROTECT 111E SOIL FROM 771E EROSIVE FORCES OF 3.32 PERMANENT SEEDING- PERMANENT SEEDING SHALL BE APPLIED WHERE SHOWN ON THE ONLY AFTER SEDIMENT IS REMOVED ill THiS MANNER. CONCENTRA7E'D RUNOFF, SLOW THE VELOCITY OF CONCEN7RATE'D RUNOFF WHILE ENHANCING THE prevent erosion and sedimentation as determined by the plan approving PLANS 5. INSTALL THE REMAINING 1N177AL CONS7RUC770N MEASURES AS SHOWN ON 774E EROSION & SEDIMENT CONTROL PLAN ETY FENCE 3.01 P07EN71AL FOR INFILTRATION, AND TO STABILIZE SLOPES WiTH SEEPAGE PROBLEMS, AND/OR authority. 3.36 SOIL STABILIZA77ON BLANKETS AND MATTING- BIM SHALL BE EMPLOYED WHEREVER SHEET. THIS INCLUDES THE INSTALLA77ON OF THE INLET PROTECTIONS AND SILT FENCE. MEASURES INTENDED TO NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE SOIL CONDITIONS, 7. All disturbed areas are to drain to approved sediment control measures at all times during laind disturbing TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE AC77WTY AND SHALL BE WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA71VE COVER, ETC., ARE SUCH THAT THE SOIL activities and Burin site development until final stabilization is achieved. g p SHOWN ON 774E PLANS' OR WHERE SLOPES EXCEED 3.•1 SLOPE. MADE FUNCTIONAL BEFORE UPSLOPE LAND D/STUkBANCE TAKES PLACE. MAY ERODE UNDER THE DESIGN FLOW CONDITIONS. 8 Dur' dewaterin o erations water will be um ed into an a roved filterin device 3.39 DUST CONTROL- DUST CONTROL SHALL BE APPLIED THROUGHOUT THE S17E WHERE 6. ONCE ALL THE EROSION CONTROL 17EMS HAVE BEEN INSTALLED AS SHOWN ON T11E PLANS AND THE INSPECTOR HAS \�/ �TEMPORARY RIGHT-OF-WAY 3.11 Ing g P P P PP :J t./ DIVERSION g. The contractor shall inspect all erosion control measures periodically and after each runoff producing SHOWN ON THE PLANS. APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN GRADING OPERA77ONS AND U77LITYI ,131 TEMPORARY SEEDING. rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices STORM SEWER MODiFlCAT10NS. AGAIN, THIS INSTALLATION SHALL OCCUR PRIOR TO 711E FILLING OF 111t- THE HE EXISTING THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH SEDIMENT BASIN. ALBEMA IME COUNW APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTA770N BY shall be made immediately. STORMWATER MANAGEMENT. STABILIZING DISTURBED AREAS THAT WiLL NOT BE !BROUGHT TO FINAL GRADE FOR A PERIOD OF 1o. All fill material to be taken from an approved, designated borrow area. STORMWATER RUNOFF WILL BE TREATED AND DETAINED ON-SITE THROUGH THE USE 7. PERMANENT OR TEMPORARY SOIL STABILN SHALL BE APPLIED DENUDED AREAS WITHIN SEVEN DAYS AFTER CONSTRIHCi'KNi ENTRANCE STABILIZING TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR FINAL GRADE IS REACHED ON ANY PORTI7ONONIZA OOF THE SITE: TEMPORARY SOIL STABtL/ZA770N SHALL BE APPLIED WTHIN MORE THAN 30 DAY 11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert materials only, free OF A TYPE 11 RETENTION BASIN. THIS STORMWATER MANAGEMENT FA TY IS SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) ,,a„ OFF-SITE AREAS, AND TO PROVIDE PR07E'CTION TO BARE SOILS EXPOSED DURING CONS7RUC77ON of roots, stumps, wood, rubbish, and other debris. DESIGNED TO TREAT &DETAIN RUNOFF FROM THE APPROVED &PROPOSED FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS 7HAT ARE TO BE LEFT To SOM11V UN77L PERMANENT VEGETA77ON OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 127W MK. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning Ordinance section DEVELOPMENT, WHICH INCLUDES A CREDIT FOR FUTURE DEVELOPMENT OFFS17E & DORMANT FOR MORE: THAN ONE YEAR. CONTRACTOR SHALL KEEP THE CONSTRUC770N ENTRANCE wi WASH RACK °"'"�T iOP °0`"= 3.32 PERMANENT STABILIZATION, 5'1.28" UPLAND. SEE 5TORMWATER MANAGEMENT PLAN BY COLLINS ENGINEERING FOR OPERA770NAL AS LONG AS POSSIBLE. THE SILT FENCING SHALL ALSO REMAIN IN PLACE AS LONG AS POSSIBLE AND '- PAVF]IEtif THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COINER ON DISTURBED AREAS BY PLANTING SEED. 13. All inert materials shall be transported incompliance with section 13-301 of the Code of Albemarle. SHALL ONLY 8E REMOVED UPON THE COUNTY 1NSPECTOR's APPROVAL. TD REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY 14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to tthe hours of ADDITIONAL DETAILS 8. ONCE PHASE 1 CONSTRUC77ON OF THiS PLAN IS COMPLETE', THE UPLAND AREAS ARE STABILIZED AND THE INSPECTOR -� eASE STABILIZE DISTURBED AREAS !N A MANNER 774AT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, 7:ooam to g:oopm. HAS GIVEN APPROVAL, THE CONTRACTOR CAN REMOVE THE EROSION CONTROL MEASURES, ABANDON/PLUG THE /IDN�W7064MWSIDE ELEVATION AND ALLOWS SELEC77ON OF THE MOST APPROPRIATE PLANT MATERIALS TO IMPROVE W/LDL/FE 15. Borrow, fill or waste activity shall be conducted in a safe manner than maintains lateral support, or order TEMPORARY PIPES OUTFALLING INTO THE EXISTING SEDIMENT BASIN AND FILL THE EXISTING SEDIMENT BASIN. THIS waouMD HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION AC77W77ES, ALL to minimize any hazard to persons, physical damage to adjacent land and improvements, and damage to MAINTENANCE.' SEQUENCING SHALL ,ALLOW FOR THE RUNOFF TO BE REDIRECTED FROM THE EXIS77NG SEDIMENT BASIN TO THE AREAS WILL RECEIVE A PERMANENT VEGETA77VE COVER. an public street because o slides sinking, or collapse. PROPOSED SWM FACILITY WHiLE FINAL CONSTRUCTION OF AWNITY Ps PHASES IN & /V ARE COMPLETED. wN any g, P E GENERAL, DURING CONSTRUCTION THE RS AI CONTRACTOR ON-SITE WILL CHECK ALL g. UPON COMPLETION OF A14NITY i AND AWNITY 11, THE DEVELOPER SHALL CONVERT THE PHASE i SWM PLAN PROPOSED MCURB M oFo� r�v�r 136 SOIL STABILiZA770N BLANKETS MATTING: 16. The developer shall reserve the right to install, maintain, remove or convert to permanent stormwater EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT RAINFALL. �� THIS AMENDMENT TO 77-/E P /-A~ �0 roc management facilities where applicable all erosion control measures required b this Ian re ardless of the MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC ATTENTION WILL HASE /J SWM PLAN. THIS CONVERSION INVOLVES EXTENDING THE SOUTHEAST SIDE THE INSTALLA77ON OF A PR07EC77VE COVERING (BLANKET) OR A SOiL STASILIZA77ON MAT ON A g PP q Y P 9 PREPARED PLANTING AREA OF A STEEP SLOPE, CHANNEL OR SHORELINE. TO AID IN CONTROLLING sale of any lot, unit, building or other portion of the property. BE GIVEN TO THE FOLLOWING ITEMS: OF 711E FACILITY TO ACHIEVE FINAL GRADES AND THE DEMOL1770N OF THE EXISTING RESIDENCE AND CORRESPONDING f EROSION ON CRITICAL AREAS BY PROVIDING A MCHANNEL O WHICH PROTECTS YOUNG VEGETATION 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 lbs/acre, and in a. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE DRIVEWAY. THE DEMOLITION OF THESE TWO ITEMS SHALL OCCUR PRIOR TO THE PHASE 1! SWM FACILITY GRADING TWITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. OPERA77ONS ASSOCIATED WTH 7HE CONVERSION. PRIOR COUNTY INSPECTOR APPROVAL SHALL BE OBTAINED PRIOR TO ve WN. AND PROMOTES ITS ESTABLISHMENT. APPLIES ON SHORT, STEEP SLOPES WHERE EROSION HAZARD the months of September to February to consist a So/So mix of Annual Ryegrass and Cereal Winter Rye, or b. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP 7HAT WILL CONVERSION OF THE PHASE ! SWM FACILITY TO THE PHASE // SWM FACILITY. --23 P IS HIGH AND PLAN77NG IS LIKELY TO BE TOO SLOW iN PROVIDING ADEQUATE PROTECTIVE COVER. in Marchand April to consist of Annual Rye, or May through August to consist of German Millet. Straw PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT, 774E GRAVEL WiLL 10. IN THE EVENT CONS7RUC770N AC7714TY OCCURS nAf THE ADJACENT PROPERTY FOR AV/N1TY H PRiOR TO THE FINAL J.39mulch is to be applied at 8olbs/2oosf. Alternatives are subject to approved by the County erosiion control BF: REMOVED AND CLEANED, OR IT WILL BE REPLACED. ACCEPTANCE OF THE PHASE I SWM FACILITY ASSOCIATED WITH THIS PLAN, THE DEVELOPER MAY ELECT TO U77LIZE arta RED DUST CONTROL: inspector. c. Al L SiLT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR THE SWM FACILITY AS AN ESC SEDIMENT BASIN FOR THE AWNiTY // DEVELOPMENT, PENDING ACCEPTANCE BY THE + + zo =MW REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAPve7 DISTURBING, DEMOLJ770N AND P MINMAUM wain+ Ar �nwvnia See 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. A ricuiltural rade Dc7ERIORATIDN OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE COUNTY INSPECTOR AT THAT 77ME. DESKM wit CONS7RUC770N AC7TV177ES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED P 9� 9 g aOMON is 4'•a' PLAN VIEW SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT limestone shall be applied at golbs/l000sf, incorporated into the top 4-6 inches of soil. Fertilizter shall be REMOVED WHEN THE LEVEL OF SEDIMENT DEPOS/T10N REACHED HALF WAY TO THE TOP OF 11. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED /N THE RAM A EROSION AND SEDIMENT CONTROL HEALTH HAZARDS, 7RAFF7C SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL applied at l000lbs/acre and consist of a 10-2o-10 nutrient mix. Permanent seeding shall be applied at ALLTHE BARRIER. HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE Wl1N 774E Mme. MCIEND Ftnt. wglx � � PP g PP d. ALL SEEDED AREAS WiLL 8E CHECKED REGULARLY TO SEE THA T A GOOD STAND /S VIRGINIA EROSION AND SEDIMENT CONTROL HANCBODK. IN=MS AND EGRESS OPERRnON SET 1 1J2» WAM MEASURES SHALL BE EMPLOYED TO PREVENT SURfFACE AND A_,:R MOVEMENT OF DUST DURING 18olbs/acre and consist of 95% Kentucky 31 or Tall Fescue and o-5% Perennial Ryegrass or Kentucky MAINTAINED. AREAS SHOULD BE FER77LIZED AND RESEEDED AS NEEDED. 12. ALL TEMPORARY EROSION AND SEDIMENT CONTRC%L MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL S17E WMRANT +MTM FRosr CONSTRUCTION. MEASURES EMPLOYED SHALL BE J/W ACCORDA:,-=.E WITH THE VESCH. Bluegrass. Straw mulch is to be applied at 8oIbsJloosf. Alternatives are subject to approved b the Count IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL 8F THE RLD OR 12' UK PROOF HYDRANT g pp j pp y y CONT?ACTOR ON -GENE: THE CONTRACTOR WILL BE DETERMINED C THE TIME 711E CONTRACT STABILIZA77ON OR AFTER THE TEMPORARY MEASCRES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY AWK OWE AND r erosion control inspector. THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESUL77NG FROM THE ohF EDGE OF PAVEMENT. !S AWARDED. UPON COMPLETION OF THE PROJECT THE OWNER WILL BE RESPONSIBLE FOR 1g. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage or clogging S17E 4A/NTENANCE. DISPOS/TION OF TEMPORARY MEASURES SHALL B" PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND to structural measures is to be repair immediately. Silt traps are to be cleaned when 5o% of the wet storage T SED/MENTA770N. SECTION A -A volume is filled with sediment. All seeded areas are to be reseeded when necessary to achieve a good stand O l L DESCRIPTION of grass. Silt fence and diversion dykes which are collecting sediment to half their height must be cleaned MOTE: A MIMAM WA70 TW OF 1" 0 REQUIRED and repaired immediately. 72C3 - Rabun clay- 7% to 157. slopes. This soil is well drained & typically has a wmi A MINWM WM NOSE OTA. Of 1X 20. All temporary erosion and sediment control measures are to be removed within 3o days of final site moderately high to high Ksat value with a depth to water table more than 80 inches. The •Pim p Com, stabilization, when measures are no longer needed, subject to approval by the County erosiorn control available water capacity for this soil is typically moderate. The surface layer is generally MR inspector. 0-4 inches thick without a risk of frequent flooding and ponding. SME ME& 21. This plan shall be void if the owner does not obtain a permit within 1 year of the date of approval. (Water 72D3 - Rabun clay- 15% to 25% slopes. This sol/ is well drained & typically has a Protection Ordinance section 17-204G.) moderately high to high Ksot value with a depth to water table more than 80 inches. The 22. Permanent vegetation shall be installed on all denuded areas within nine (g) months after the date the available water capacity for this soil is typically moderate. The surface layer is generally land disturbing activity commenced. (Water Protection Ordinance section 17- 2076) 0-4 inches thick without a risk of frequent flooding and ponding. 79B - Starr silt loam- 2% to 7% slopes. This soil is well drained & typically has a moderately high to high Ksat value with a depth to water table more than 80 inches. The available water capacity for this soil is typically high. The surface layer is generally 0-18 inches thick without a risk of frequent ponding and an occasional frequency of flooding.. CURB INLET _- TOTAL LBS Reference. web soil survey online database, found at GENERAL SLOPE (11 OR LESl PER ACRE Http://websoilsurvey.Nres.Usda.Gov/app/webso#survey.Aspx <=> KENTUCKY 31 FESCUE 128 LBS. SHALLOW A SLOPE .,_ _ CONCRETE BLOCK WIRE SCREEN * GRAVEL SHALL BE IAD 0T #357 GRAVEL* FILTER OR #5 COARSE AGGREGA"TE G BLOCK & GRA VEL CURB INLET 3.o7 -g SEDIMENT FILTER NO SCALE ATTACH OT STAKES OR POST EXTEND IT INTO TREP EXCA VA TED BACKFILLED COMPACTED )EN STAKE L POST TH = 5' MIN. SIL T FENCE SF (WI THOU T WIRE SUPPOR T) NO SCALE RED TOP GRASS 2 LBS. SEASONAL NURSE CROP 20 LBS. SEASONAL NURSE CROP 150 LBS FEBRUARY 16 THROUGH APRIL ANNUAL RYE MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET AUGUST 16 THROUGH OCTOBER ANNUAL RYE NOVEMBER THROUGH FEBRUARY 1'.5 WINTER RYE NOTES: 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32, 2. SEEDINGS TO BE MULCHED) IMMEDIATELY UPON COMPLETION OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35, PERMANENT SEEDING SCHEDULE NO SCALE (STD. & SPEC. 3.32 OF VIRGINIA EROSION & P S SEDIMENT CONTROL HANDBOOK, 3RD ED.) PLANTING DATES SPECIES RATE Coarse Spray 50/50 MIX OF (LBS/ACRE) Latex Emulsion ANNUAL RYEGRASS SEPT 1 -FEB 15 (LOLIUM MULTI-FLORUM) 50-100 Resin in Water 41 Fine Spray CEREAL (WINTER) RYE Acrylic Emulsion (SECALE CEREALE) FEB 16 -APR 20 ANNUAL RYEGRASS 60-100 (Nu (LOLIUM MULTI-FLORUM) Coarse SPMY GERMAN MILLET MAY 1 -AUG 31 (SETARIA ITALICA) 50 SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY' SUMMER MONTHS SHALL BE MULCHED IMMEDIATELYr UPON COMPLETION OF SEED APPLICATION WITH TACCKIFIED STRAW, IN ACCORDANCE WITH VA E&S STD 3.355. TEMPORARY SEEDING SCHEDULE NO SCALE (STD. & SPEC. 3.31 OF WIRGINIA EROSION & QSJ SEDIMENT CONTROL HANDBOOK, 3RD ED.) TABU '3.39-A. ADMStW9 USED MR DUST COMMOL Water Application; Dilution.Type of Rate . ve aaesiYe: Water) BWak GalloUSIAM Anionic AsphWt E uuWoi T_1; Coarse Spray 1,200 Latex Emulsion 123:1 Fine Spray 2 Resin in Water 41 Fine Spray 300 Acrylic Emulsion o 0 (Nu 71 Coarse SPMY 450 Acrylic Einulsion rte- 3 (Traffic) 3.5A Coarse spray 350 ON 3 -HALLOW SLOPES, STRIPS NETT71VG PROTECTIVE COVERINGS MAY BE APPLIED ACROSS BERM THE SLOPE. BRING THE MATERIALBOVERATTHE E BERM ANDTHE CHORD` BEHIND THE BERM. BRING MATERIAL DOWN TO A LEVEL AREA BEFORE TERMINATI1,VG THE INSTALLATION,, TURN THE END UNDER 4 AND STAPLE AT 12 INTERVALS. > .. 1. SFT POSTS AND EXCA VA IF A 4"X4" TRENCH UPSLOPE ALONG THE LINE Of- POSTS IN DITCHES APPLY PROTECTIVE COVERING PARALLEL I'O THE DIRECTION OF FLOW. USE CHECK SLOTS AS REQUIRED. AVOID JOINING MATERIAL IN THE CENTER OF THE DiTCH iF AT ALL POSSIBLE. ON STEEP SLOPES APPLY PROTECTIVE COVE#_WiN PARALLEL TO THE DIRECTION OF FLOW AND ANCHOR SECURELY. 0/M SOiL STABILIZA TiON BLANKET NOTE TREATMENT 1 SOIL S7ABIUZ477ON MATTING MATERW SHALL BE INSTALLED AS NO SCALE REQUESTED BY THE ALBEMARLE COUNTY EROSION CONTROL INSPECTOR 2. STAPLE WIRE FENCING TO THE POSTS. SIL T FENCE sF (W/11-1 WIRE SUPPORT) AIYI C 1 A I C 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND l T INTO THE TRENCH. rM1i10u E� 4. BACKFILL AND COMPACT THE EXCA VA TED SOIL. Filluo if EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. SCOT R. COLLINSZ No. 35791 ��SSIONAL 1v���. Z 1Z UJ ZJ 0 <Z c! N UJ ce AJ7 I I U 0 H i_? a Z � T C UJ ° L ® o -II 6 ° Cf) Ln �- w o 6 �z °Li 0 s w U) LJ Wz �z °w to ® ° z J EO -' Icy - L - o Q)0 o W o 0 0 c � U ° U c U N "D ® yL 0 G ° J ^ U a � N CL L �n X H ® ° m W E O -0= C: 1�1 z C �' Z Y w ° w 0 z 1--1 w 0 i1 V � J V)� 0 z� -� 0 dU i.1J o c ° 0 o c a�6 V) U O � U o LJiL ° t7. V o E O w 0 JOB NO. 0 092033 0 6 ° SCALE AS SHOWN o ._ c m SHEET NO. o 0 0� ESC -2 (Do rte- 3 ..• 000 0 Short Version BMP Computations For Worksheets 2 - 6 Albemarle County Water Protection Ordinance: Modified Simple Method Plan: AA t+ _ .__... Water Resources Area: Preparer.FGM"Date2Apr14_... ----- _..._....__.._._____.._.._ Project Drainage Area Designation post Development vv1 ga Ke heds DA #1A s. #1 L storm pollutant export in pounds, L = [P(Pj)Rv112 ][ C(A)2.72 I Rv mean runoff coefficient Rv = 0.05 + 0.009(1) Pj small storm correction factor, 0.9 1 percent imperviousness P annual precipitation= 43" in Albemarle A project area acres in subject drainage area, _A .._ ! _ .---- �- (DA #1A and #1C} C pollutant concentration, mg1I or ppm target phosphorus f factor applied to RR V required treatment volume in cy, 0.5" over imperv. area = A(I)43560(0.5112)i27 -RR required removal , L(post) - f x L(pre) %RR removal efficiency, RR100/Vpost) inroervious Cover Cornioutation (values in feet & sauare feet) Item RZIR-1 Approved DA #1 Pre -Dein lmpervicus Areas Existing DA .#1C Pre -Development impervious Parking Lots ------- Gravel Gravel areas Area _.x 0.70 Structures Area no. DA #1A Past Dev. impervious Areas DA #1A post Dev..20% porous Patios/Decks Credit for Future Development Wthin DA #1 C: (65% of DA #1C, or 6.55ac.) Gravel areas Area Actively -grazed pasture & Area ;Actively -grazed pasture & Area i �M .yards and cultivated turf _-- _ _..'..668,6�5�x0.08.._.... - _-- -_. . 5,and _cultivated turf _ f 276: Gravel Area Area I Grad Area Area i 1 x4.80- 4 f Actin crop land tActive � cr land 0 Impervious Cover 111% Impervious Cover upre j > I I I f a� ♦i ' f 4.61 4 1 4. 0 Development For Qe � i ver Zit New mars ve t Areas e�sta us rsa /o G i f I re �Irre e ; L #ry RR 1 °lQ RR # Arex t . �_. l #� _ c. \\ � f 62 suo 0.23 20.53 54 34 33 6°fo D 's5^ �r. ro �: Sr h \ " 3 z min. values C 0 x+008 22,106 x 0.80= 0 1 OF i ti 63°10 .•._..-.----" �,_,,•- -----..�..,.��' I(post) O s Rent Area _ - TE S1 D/ OFFSITE A. #2A: I �-� - t r-, MO I i _.----(APPR.O.V.ED ATERSHED- NOT MOIED) OR JT MT FORMERLY APP ROV DA # '/F�Z E-RtY APER r �._ 26.26ac. -� ► - �: /' 1' '�f int C CN=55•0 ____ _ .. i )� i /' f Tc—_ o ho 1} I 1 lLJ Z/ ( iy :. \.__... - 1 1 f- fit• ----' r` ; \� __� j __ Ar 411-7' , '� z � .._ _ . ._.._ .� fir,-` - � ..-..� ,� ,,= '' "n� � •� �r� ...-_ Xdi \ _``_: \� �\ ; - l '� - _ ` �'' _..� ter✓ �'. iTi OFFSITTOE L OF 0��'�� ,•z.V::�;t �, nw � ; � .� - EX� NG E SWALE i NT �-�} Off! L ROMA.-... j}yu5r�„® ---_ ELEMENTARY SCHOOL's PM I by' }1 k},43jSt•} '} A } Y7N y. y� '4 4. "--... u,r ..raskat:,wY v -- A FIELD DIVERTS DRAT GE -- -- o 1 :$: 4': G: yt . c < ,: 51 ,—A AY FRO THS DEVELOP ENT e` ���.�'s �. ��YK �u44''� j>V �q. '� v;;. 4 r \ // ( TING A H{ H POINT Y% ✓ '”" .� �i -,\,, �`° \. \� Z �<� \ •,, � `,� , y:>,«:< ...,A ;, m, ". '• tf �r PROXIMATELY AT THE J D>d' I PROPERTY NING 0 . 1 I • �' \ � I � `� `'� � a, `>,� :`�. ,� { •� ;�,,,�y�,, � �f - � T LINIX. t 1A,mom Ic 1 f f CN y �C 0.2*s. ��..., .—_- ^."`"w"-„`_-.---._...._.. f .:�•', -:^'” ''�� r' f f f \ l� ( ..; �t i� t ��� > Et foo OG-OLF A ELEV=14 Tc --6.27 hrs. DRIVEWAY FOF EXtS iNG - r~r' REXIENCE SHALLJBE 1 r, RECON GURE c 5I.S. � 5 FINAL Tc= o.22hr r-% Tn !--""`..�----"" � f,,,.. -^"'f �✓ '�~ !', --� ...,. '°r'r ,,.•-'-''" f.Cj&�''�� �� /'/ f %f% ,/,r' f/��f t1 �! J j:.l, �„ + �.� '^---__----, '`✓.�'� � ! ,,;,.„�-"' .---"`... -'".".-- o''' —._..--- —__. ._.-.-."�,. r,.-„,...-"^'�� ar, ..-•.--^” �! . f f f � j t ; t s.3 ,� � ,� t �. / 1 _ 1 t /.:.;„.,_,.�, t r ..�.✓ J t � �,. f a 1 s f I f/ .'�t• • jkj 4 r � i t jjI 3 4 y i 1 _ r / , r , / r i 2 A O Q r/ k AL 1 I -fit R� t jt ,�•�. i t © � r } 8 160 / 0 \ e - I < 1 p t r c .. i 3 1 s� i o _ F - r _ E o ,~ f t 1 fY. 10 > SCOTR. COLLINS`Z No. ( 3(5791 ,� ,s ONAL E Z U) ZUJ ® Q ; � ri Z < U) Me FI W' Ce z w w z CD z w cn z 0 U v - O c N U) C O U C U 3 C TRACTORSHALL FIELD FIT ' ,/ LOT �-�- % ODIFY STIP. 4 {DI -2C, L=$'�11�! L � / A CORDAN�CE w/ THE PROPOSED -' 52 �53 ,r' LOT '`f LOT i �` PUNS & NSURE AN A QUAT >4 54 TF LLISACHIEVED. ONTRAC OR f EX1PTING TII,ITI S TO 56 / e,: l,. €I / RE AIN UNDISTq-RBED 944 NOTA THEE GINEER PRI f r `� % r / TO ERIZG OR NSTRUP-Tt'O EXISTING / ,r WITH A Y DERV ATI NST�!-THEPIP i 2. PROPOSED SFV FAfILITY X w w ACSA ESM?:DOT STD. ALIGNM NT S UP AT CAN BE �� ASEM NT COINCIDD4S w/D-z P. MADET TH,E UT LLSYSTEM. I ' ,�� `�' EXISTING CSA r SMT: I I 0' WIDE RIPRA '030°' CL. III RCP `7'' _ \ l TRA OIDAL j f / i, 60' 0 0.50% � d ANNE / I4}OT STD. EW -1 w/ OUTLET PROTECTS INV.=494.3' e V0/ NTS DOT CLASS CLASS 11 EC -1 RIPRAP INV. OUT=494.0 / t / J \ 1 ,/ 510 /� I , GE07EX77LE FABRIC UNDERLAYMENT. r j CONT ACTORSHALLMODIFY / W1=7.5 W2=125 L=10, Tj=2. 1. STR. 4 C{y(�TRAtTOR SHAL\(, SULATE 1111 EXISTING IPRAP DITCH 2UTFACL T10 10 / TDF-TOP/OF �r - -- _ ---- W1�'TERI,NNE U�1DER R HERE THE ATIOI�! SHOWN ON THE, HAM TO' PROfjIDES s ,EPTF j OF C,,@VER IS LESS ,�N 3' 8 PIAN DITCH OUTFALL SHALL -BE AD RD JSAFETT DI -213 11NSTALL,,24 GAR UND HE CONST CTEDOFVDOTWD. EC -1, �/ EXISTING CAS IC TYPE 11 CL. A R{Pl w/ FILTER / �✓' - , , w 32 r/ _ / IN�S�J�,r ON LL EXkEND 5' \� FAB IC UN[1E LAYMENT- `" w P w ___.� w J / S / UTyDE T EXT NTS OF THE( CONT fiOR SHALL ENSURE/ / 3 WIDE RIPRAP- 1 w /� f t t / . i R PR/�P TYPJ., '� - "POSITI DRAINAGETO�WM LINED EMERGENCY- -zB/i ) ee� 1 _ / i f F�CtUTY )Ao.y96MIN SLP SPILLWAY CREST/ - 5 ELEV.=500 QF( - /WIDE #VEL _.. SAFETY BENCH BIR (STING STR. g ARREL $t \ ; \ \` �' _ :.:: :::::: ' 10' WIDE GRADED G -F \ ` \ \ `-EART-IIEN�' / \ \ w/ SLOPES <107 T�1 AGS CiM,STF2'.'. �� 1\ 1 PROVIDE ADDED SAFETY 'l I :.t 7 -1 . •., . . ' . • . \ ,�-PROPOSED VDOT STD. GR -2A ., GUARDRAIL ALONG REC F-IGURED. . _ - ' / -_ SHALL_..S.W E --DRIVEWAY SHALL -PROVIDE ADDED \ • • \ _ w DO UA -f TING" r \ SA s FETY / PE MIS ION--TO­TT'ILIZE - f T \ IfIE XIS I TING G � V A EL`" -_ � '. . ... ' ,'• ' ` : •• . , T 1� \ X ,� ;i�' '•'• •,..RCP•'•'�� •'�:::�,.:;'..•::.;:: sat. . '• 'AS�LI2T '. SA1VI Y . \ / . ,y.• MF1L T ST,9: ENTLY SLOPED ACC'# S ROAD, AE A SWM I, (�• . / / - h'tSEEti' f?lt�l::LGE•u•='4,b`.50 ', CGJESS/PRIOR TO dish / ., • w. • AREA FOR / ;. 4 R �..°;. :i�' .: OCIf7 ::f05'•'.' L'OW�. L'OW GONE I RUCTION., THE STING RISER & UPPER 1 �, / �... • ,.. ADDED SAFETY _- '. ' I, S 't O STR. g SHALL BE t r I ., A:z •.e<(1::��.•o, .::: f �" ✓ ___ - ,.: : J AIAD NE &STRUCTURESPnRoEr� .iAr . sic swat'. : { : . ` . , 14 c I 3. & 5A ALL BE FIELD IT'o. 'BE'. • A ED;, : 0' ID LEAVE ( / / / IJIIT EI,O/MODIF D TO ENSURE I UNDER' 'A'. D F 'E S'E7''.i7F'. • . SAF TYj BEC 0 B 1 / d'- APPROViD IMPACTS I s I NS, • '.WITH : H A'TIOIV'. DF'•: j 1 TO 1300 LINEAR I I FF=507.46 / jAI ID QUATE UTFALL OF .'HF',AafE'ND D .S .ac �clLrl : 1 FEET OF STREAM I 1 j THE STO M SEWER I I y I l ® I {basement) 1 StoryFrame 8 H em en t • � • 1 1 ��' ; W/bas 1 1 rave 496.0 ,,.. i - I I FF=515.88 VBDN i i.. f, s i F�ZAPUS L I 1 f /0 5 WIDE FO BAY w '.• ',�'ASEll[ENT' Ct'?INEID •' f I , � .. ,;.:,�,. _ �;�.::::•.�..•.:..:�:�::::��..':':•�::.:.:.•'.'.•'�'''.•'. ... •,'' •'•' � ( ,. I TOP OF D M ELEV.-495 I \ J f SHALL B SUBMERGED A ? / :EXIS?'ING::ACSA' i MWS#: I / M HALL BE t ra �'.••E.'I.STI•NC••,�':fI;IT.Y, �:• f CONSTiiIiICTED OF WELDED GABION BASKETS FILLED I j w//STONE & HAVE A 5' 13 HVI \ ` + s� 1 WEIR. � f 5 / IN. WATER QUALITY �� r j -------- VOLUME __ - } I I f VOLUME (4x) RE'Q'D= ° I WATER a R QUALITY z VOLUME PROVIDED- I i i "CMP a- 6C - \, -- R�1PE°ZQIDAL I 1 MOSS-ACO _---,NS•kL^C I E40 ATE A�UILT F.H. ASSEM LY, A5�"` ( f : •: �� ' : ; •'•�. :.''.••.'•, .•.,•••. • •.'.'.•',.`� H WN ORTH tNSTA ATIONFTHE CO�VCRACTO•R• SHAL : I�J� ✓ ,f ' ' / STO M EWER ONTRACTOR Sr: IS' I 1 ��! e - , P POSED SWM F, M ISANITARY. •• SAVER � ENC0NPASS#S-FHASE CL S F. GATE%LVE DURING THIS7'0 FINISHED: GRA t II FINAL, bUILDOUTJ RUC ION &SURE HYD I :`� :.:.'' :'. :: • :..' .' • • . 3 I cn t r r r �/ 1�`I` {�� 1 1 o c /A !VE IS RESTRAINED Tt3`T�IE TEE PRI ONTRACT6 's LL: ELOCA`PE'.$t �� 1 I RELOCANG HYDRMIT. �I AMEND STR:.66: G© RACT(JR .'• '. j - j � I � I � ALL'.Nt)T'tt-Y•Ti�;E'EN tNE•RIj � I `F`'"` .- ,,,. � � ,� ,f � r STR. 50SHALL BE FI,E�LD \ 65 FITT D MODIFI T NO U JE 'OVG'OR :CO . �TOUCTIOO , : '. J OE SURE I ;'ItH"ANY'nV�ViAtl6i� tOTHIEP* 1,s•E•,:*-.• : •' / ( a�� f i �' , ' ,•' e •' r '/ - ANIADEQUATE TFALL \\ "� _ I AL:IGNMENT•.& D1- O'V D;4TE5.CA J� } / THE STORM SEWER. ( . H ' • Y'STE +' i I<, ` --`•_---' _ '' r / / ' r _ 0+00\( -----I DI -3C (6') x aZ / � � � � I ,/`` / 3' WIDE L EL ... '� ' '- ✓ / I / / AFETY NCH r EX- TNG i - 66 PRO DI -B ') 50 `^- - / e' SWM COITRACTO SHALL MA NTAIN SITIV % Si, \ D (NAGE AT EXIST / \ WAREA TOS M f f I FACILIT , ASS 01YN. >� j l % \ : ill WALLAC B. AND IDA . HUGHES D RAINS% EA -O�J s ('I�'P.) w ;__LOT w w LOT w OTw wt T w w 83 84 85 7,11111 GRAPHIC SCALE .' `v a �h `� `} ! I(I ( 1 2a/ o 10 0 40 ao 1 i d r 1 } 1! I .n:Li 7 f ,ri.:,r ,..,ou. 4. ::. , NOTE: IN FEET OTES:�., - w- J�,. J ! ,� / � �, --/ � � 1 ,/ () It 1. THE EXISTING RESIDENCE AND THE o ` / J / 1 inch 2D ft. s. ALL FILL TO BE PLACED AT 95 /o COMPACTION. DRIVEWAY PROPOSED WITH PHASE I SHALL 2. MINIMUM 3' OF COVER MUST BE MAINTAINED OVER f 1 ULTIMATELY BE REMOVED FOR THE FINAL W/L&S/L. }� I CONSTRUCTION OF THE PHASE II SWM FACILITY. 3• MINIMUM OF s' OF VERTICAL SEPARATION FROM / 2 ALL PROPOSED SLOPES STEEPER THAN 3.1 STORM SEWER & W/L AND i.5' OF SEPARATION < / t t- E N C H LAN D5CAlDI N G j BETWEEN WIL & SANITARY SEWER MUST Dr- ESHALL = R. 50 SHALLHAVE A LOW MAINTENANCE GROUND PROVIDED. ` Abb. 1 COVER FOR STABILIZATION PURPOSES. THESE 4. ALL ROADWAY EMBANKMENT MATERIAL SHALL CONSIST PREDOMINATELY OF SOIL AND BE PLACED IN Caliper Size { AREAS SHALL NOT BE PLANTED WITH A GRASS STR:66, VDOT STD. DI -3C ;TU B) STA:0+93.97 COVER FOR STABILIZATION & SHALL BE A SUCCESSIVE UNIFORM LAYERS NOT MORE THAN 8 INCHES IN THICKNESS BEFORE COMPACTION OVER DON) (DED} j Quandt Canopy / GROUND COVER CHOSEN FROM TABLE 3.37C OF THE ENTIRE ROADBED AREA IN ACCORDANCE WITH Hummingbird Summersweet 2' / THE VESCH. VDOT 2007 ROAD AND BRIDGE SPECIFICATION 303.04 CONTRACTOR SHALL FIELD VERIFY ALL EXISTING VBDN j ` 1 /3. ALL DRAINAGE EASEMENTS ARE 20' WIDE 5• 3'-4' 31 UNLESS OTHERWISE NOTED. ELEVATIONS OF STORM SEWER, SANITARY SEWER& WATER LINE PRIOR TO CONSTRUCTION. NOTIFY THE HVI III i Common Wltchhazel IFY THE (STING 11PE 6' / I 4- EMBANKMENT TOP OF DAM WIDTH SHALL ENGINEER OF ANY DISCREPANCIES SO THAT THE AP/FR e' BE 10' MINIMUM ELEVATIONS OF THE TIE-IN CONNECTIONS CAN BE E BEEN I / /J t ADJUSTED ACCORDINGLY. 6. ao' OF HORIZONTAL SEPARATION SHALL BE Perennans, 50% Fescue manufacturers NTALIG,.1 n TA14DELEV t 600 sf MAINTAINED BETWEEN THE OUTSIDE OF THE Festuca Rubra recommendations -- SANITARY SEWER AND WATER LINE. 1ASBUILI EXISTING I AIN. � MIN � 0 rA k-tvr% RETENTION BASIN( TYPE III AQUATIC BENCH PLANTINGS. SEED MIX FOR AUTUMN BENTGRASS & RED FESCUE (TO BE AMENDED) ST RIM=528. INV. IN=520.79 AB INV. IN=521.15 AB INV. OUT=520.74 AB (`. (TO BE ABA PROP. INV.OUT=520.74 (49AMEI RELOCATE ASBUII ASSEMBLY FOR STR( 49 INSTALLATION. Mj MIN. s' VERTICAL SEP) FUTURE FIRE LINE CROSSINI APARTMENT COMPLEX (1' SEPARATION) FUTURE WATER LATERAL CRO! FOR APARTMENT COMPLEX (1' SEPARATION) CONTRACTOR SHALL FIELD FIT/ STR. 5o (DI 2B, L=161 TO IM DRAINAGE FROM EXISTIN( SEWER & TO OUTFALL INTO Al STR. 49. CONTRACTOR SHAL. THAT EXISTING PIPE AND E STRUCTURE HAVE BEEN INSTA THE CURRENT ALIGNMI ELEVATION TO UTILIZE THIS STS FOR THE PERMANENT C CONTRACTOR SHALL NO' ENGINEER OF ANY DEVIATION! PIPE ALIGNMENT SO UPDATE! MADE TO THE OUTFALL' STF RIM=52 INV. IN=518.30 INV. IN=519.3C IN V.OUT=518.00AE (TO BEAT PROPOSED INV. OL (11 Al O = R. 50 OR S 4ALL FIE 10 -Year Total Abb. Scientific Name Common Name I TCanopy Caliper Size (60) 5 0 NCTIOIN BETWEE STR:66, VDOT STD. DI -3C ;TU B) STA:0+93.97 Ef) L DON) (DED} j Quandt Canopy Aquatic Bench Landscaping CA Clethra alnifolia Hummingbird Summersweet 2' 16 24 384 VBDN Vibumum Dentatum Arrowwood Viburnum 3'-4' 31 16 496 HVI Hamamelis Vlr lnlana Common Wltchhazel IFY THE (STING 11PE 6' 1.13 30 3390 AP/FR Seed mix: 500/,DAgrosts Autumn Bentgrass & Red seed Per E BEEN I 4STALLE TO THE N Perennans, 50% Fescue manufacturers NTALIG,.1 n TA14DELEV t 600 sf 530 Festuca Rubra recommendations v 1ASBUILI EXISTING RETENTION BASIN( TYPE III AQUATIC BENCH PLANTINGS. SEED MIX FOR AUTUMN BENTGRASS & RED FESCUE (TO BE AMENDED) ST RIM=528. INV. IN=520.79 AB INV. IN=521.15 AB INV. OUT=520.74 AB (`. (TO BE ABA PROP. INV.OUT=520.74 (49AMEI RELOCATE ASBUII ASSEMBLY FOR STR( 49 INSTALLATION. Mj MIN. s' VERTICAL SEP) FUTURE FIRE LINE CROSSINI APARTMENT COMPLEX (1' SEPARATION) FUTURE WATER LATERAL CRO! FOR APARTMENT COMPLEX (1' SEPARATION) CONTRACTOR SHALL FIELD FIT/ STR. 5o (DI 2B, L=161 TO IM DRAINAGE FROM EXISTIN( SEWER & TO OUTFALL INTO Al STR. 49. CONTRACTOR SHAL. THAT EXISTING PIPE AND E STRUCTURE HAVE BEEN INSTA THE CURRENT ALIGNMI ELEVATION TO UTILIZE THIS STS FOR THE PERMANENT C CONTRACTOR SHALL NO' ENGINEER OF ANY DEVIATION! PIPE ALIGNMENT SO UPDATE! MADE TO THE OUTFALL' STF RIM=52 INV. IN=518.30 INV. IN=519.3C IN V.OUT=518.00AE (TO BEAT PROPOSED INV. OL (11 Al 0+50 1+00 1+50 1+85 STR. 50 OUT SCALE: 1"=5' (V) 1' =5a' (H) 535 r (L=6') 18% M O = R. 50 OR S 4ALL FIE D FIT & 4 AB Z (52) C (60) 5 0 NCTIOIN BETWEE STR:66, VDOT STD. DI -3C ;TU B) STA:0+93.97 Ef) L DON) (DED} j W STR. PHASE IV ' TP:524.07 I PT DRAT AGE FR M ROAD ;INV IN. 517.25 TO 50 (INV OUT. 517.15 TO T FH 525 525 M FACIL11 ICTURE ALL VEI IFY THE (STING 11PE --- a- ® 11NTAIN A II E BEEN I 4STALLE TO THE N ORATION 2 I 0 NTALIG,.1 n TA14DELEV t TIONTO TILIZE T 41S 530 3 FO I s v 1ASBUILI EXISTING AIN. � MIN � 0 CON RACTO SHALL IEMBAN MENT F- I 7 00 co DEVIA IONS T THE PIP V NT 50 U DATES N iSING 520 i f ` 49520 o t d N W BE Mi DE TO T E OUTF LL SYST M. . 0 Z cw to � i I MIN. Lu ® LO a� J s I PI ZOPOSEEG DING C U 0 U C)O ? 0 ISSOCIA ED ITH MODIFY 18" HDPE 525 (~n CDD I°- AME ME T ERCEPT 88.97 LF @ 3.92% 525 . 12 A s Q STORM n O 3 a s 4.30 A AENDED CLa> � VERIFY XISTING 515 7 -- 515 �AB (14', B��� o 3 .LED TO ., �...� 1 65 'NTAND Lj w 6 W 18" HDPE UCTURE {ANDON ; z `, 66.93 LF @ 1� UTFALL. WATEIUCATIO 520 IT=5s.8.o f>�i -j C: o IFY THE F TURFS( LATERA CROSSING ' Ii W I i TO THE 510 FOR APARTMENT OMPL 1 0' 0 L C ._ 510 CAN BE Q M N , I SYSTEM. ® v 0 N U 509e tLF I LOCATION OF EXISTIN i MIN' 24" RCP 111 � o bc ASB ILT8"S1 Uj CLD -15.90% EXIS { i ; PROPOSED ; VDOT TD. EW -1I 515 505 € ui o �' s 505 OPOSE PPR XI M ATE L I N a a o SWM -3 IN .=514.53 Imo- 3 EXISTING 12" W/LI CONTRA I TOR SHALLi INET LL VDOT f�TD. -_---- __..__.._,_...-- - - - I -1, TYP - --- ----- 11, CL. A ____tNST RIPRAP D _ TCH OU ---------- (FALL ----....__. _ I w/ FIL ER FABR C UNDER LAYMEN'. IODIFY 510 500 I CONT --TOR SH NLL ENSURE POSITIVE OUTFALL 510 j7 500 j TOP 0 -- - - ---- s PR POSED DAM 498 11 BEC NSTRU ED OF Y I 498 UTILIZE ISTING EDIMEN 1 EC -T, TYPE 11, L. A RI P w/ J W P N, Lq I� rE �'�� w N ��„ o00 IN V.1N=51 .15' & INV OUT=5o I ; lug to w 505 ��\� 0+50 1+00 1+50 1+85 STR. 50 OUT SCALE: 1"=5' (V) 1' =5a' (H) 535 r (L=6') 18% M 0+50 1+00 1+50 2+00 2+50 STR. 12 - OUT or I SCOTT R. COLLINSt2� No. 385791 ,� 1 off, "ti - ORAL E O = CONT OR S 4ALL FIE D FIT & DIFYA NE R Z UJ UJ C THE NCTIOIN BETWEE THESE (MENT SIN PIPI S. F■1 Ef) L a W STR. (DI 2C, L 8'} SHAL INTERC PT DRAT AGE FR M M FACIL11 Y. CONT CTOR ALL VEI IFY THE (STING 11PE a- ® A D STRU URE HA E BEEN I 4STALLE TO THE N 530 2 CURRI NTALIG,.1 n TA14DELEV T TIONTO TILIZE T 41S 530 o v CL 0 CON RACTO SHALL TIFYTH ENGIN ER OFA F- z 7 00 co DEVIA IONS T THE PIP ALIGNM NT 50 U DATES N _z 3w w o t d N W BE Mi DE TO T E OUTF LL SYST M. . 0 Z cw to � i W U) a z Lu ® LO a� J i­oZ C U 0 U C)O 0 t- Uj° 525 (~n CDD I°- W 0 U Qc 525 . 12 A LU Q � •c n O 3 a 1 4.30 A U ai CLa> � AB (32 W 7 -- �AB (14', B��� o 3 ., �...� W (STUB Lj w 6 W w N {ANDON 520 z o U w(f) 520 IT=5s.8.o f>�i -j C: o O 0 AENDED Ii W I i T� c 12-14 0 L C ._ 5 Q I{ I ® v 0 N U tLF w � 24" RCP 111 � o bc { -p E Uj CLD -15.90% EXIS ING 8 i iZ-EXISTIN(; BANKM NT 515 SDR 35 PVC 5/L ui o �' s P OPOSE c � SHEET NO. a a o SWM -3 IN .=514.53 Imo- 3 \�l f f -_---- -__- CO TRACT01 t SHALL A IODIFY 510 i EXIST NG RIPPJ P DITCH OUTFALL 510 -- - - ---- s THE P NS. dIT H OUTF LL SHALL 11 BEC NSTRU ED OF Y OT STD. UTILIZE ISTING EDIMEN 1 EC -T, TYPE 11, L. A RI P w/ ASIN BA MEL AP ROXIMA rE �'�� � IN V.1N=51 .15' & INV OUT=5o .68 i COh TRACTOI Z SHALL ENSURE 505 ��\� PO ITIVE D tNAGE T SWM 505 `:� FACT ITYw A MIN SLOPE UTIL ZE, ANDMODIFY) NECES iARY, THE EXIST ING SEDII AENT B IN BARREL FORTE OUTLE . CONTR CTOR St ALL ENSURE POST nVE SLOPE BETWEE N THE OL TLET & T P OF DA M. - EXISTING 4FDOT 500 1 STC. ES -i 500 APP OXIMATE LOCATION OF EX STING 12 DIP W/L. CON RACTOR HALL IN ULATE ATERLI UNDER IP P WHEREDEPTH F VE I LE HAN APPRO LOCATION L L INST L 24" C ING AR UND TH EXIST1 12" W/L. OF EXISTING 8"MATE CASING INSU TION SH LL EXT# D 5' O IDE THE 495 EXT ENTS OF HE RIP P (TYP.). 495 LU LO Lo W 0+50 1+00 1+50 2+00 2+50 STR. 12 - OUT or I SCOTT R. COLLINSt2� No. 385791 ,� 1 off, "ti - ORAL E IMME Lu O J a F s Z UJ UJ C Z O � < F■1 Ef) L a m � I< IMME Lu AV M m M d- i o CL N � (� � L Z z T N � o v CL oo­ F- z o cs (- W � _z 3w w ►� W W N z 0 Z cw � i W U) a z Lu ® z a� J i­oZ C U 0 U C)O 0 t- Uj° c c W 0 U Qc U � LU Q � •c n O 3 a 1 V U ai CLa> � 0 X W OUlT •o-+ 7tV�J B��� o 3 ., �...� W z o' s Lj w 6 W w N z o U w(f) � z J f>�i -j C: o O 0 w- o o-,, W T� c 12-14 0 L C ._ P�1 Q -o ® v 0 N U w ao J � o bc -p E Uj UE •- 0 c JOB NO. 092033 0 ui o �' SCALE AS SHOWNo cU c � SHEET NO. a a o SWM -3 a) o Imo- 3 fU a O C z_ o ry rLd w z �z Dw �cn 0 C J -O � U O U O 0- z C 3 °J c ,c O U N C U Q% O L L 3 CL v rn L (n a) (V L n x- O N O E O O a f= a ; 10' MIN. TOP OF- iig DAM ELEV.=502.00' PROPOSED• GRADE 2- & 10- YEAR STORM EVENTS DO NOT CREST THE EMERGENCY SPILLWAY 505 505 XISTI 100 -YR PEAK GRAD-' WSE=500.84' (1.16' OF FREEBOARD) 0+00 0+50 = 3.3 NO TE. 100- YEAR PEAK WSE FOR ULTIMATE BUILDOUT=500.93' (1.07' OF FREEBOARD) 500 .11 100 YEAR W.S.E.=500.84' 10 YEAR W. S. E.=499.89' N 2 'YEAR MWSE-496.0' W.S.E.=498.89' 495 5' WIDE FOREBAY SPILLWAY CREST ELEVA TION= 490' 490 505 TOP O DAM P OF FOREBAY DAM WIDTH= 5' AT AN ELEVATION= 495' PROFILE SCALES: 1"=5' (V) 1"=50' (H) 495 CONTRACTOR SHALL EXTEND/KEY EDGE OF FOREBAY DAMS INTO EMBANKMENT 4' BEYOND DAYLIGH77NG EDGE AT 495' (TYP.) CONTRACTOR SHALL EMBED WEI j I tt :, Rhin 10 FOREBAY DAM 18" BELOW !R t FOREBAY DAM 18" BELOW CONTRACTOR SHALL EXTEND/KEY BOTTOM OF BASIN 2' _ 3"' - � 500 FOREBAY DAM SHALL BE CONSTRUCTED OF 500 54 EMBANKMENT 4' BEYOND 485 7 35' WE! COEF 485 -15LRIERAP L ED t EMERGENCY � RIPRAP ON THE OUTLET SIDE. FOREBAY DAM 405,825 sf SPILLW Y CREST r- 495 ELEV.' 500.00 495 M 00 O b `— rn LO to L0 O 1.0 O L0 0+00 0+50 = 3.3 NO TE. 100- YEAR PEAK WSE FOR ULTIMATE BUILDOUT=500.93' (1.07' OF FREEBOARD) 500 .11 100 YEAR W.S.E.=500.84' 10 YEAR W. S. E.=499.89' N 2 'YEAR MWSE-496.0' W.S.E.=498.89' 495 5' WIDE FOREBAY SPILLWAY CREST ELEVA TION= 490' 490 505 TOP O DAM P OF FOREBAY DAM WIDTH= 5' AT AN ELEVATION= 495' PROFILE SCALES: 1"=5' (V) 1"=50' (H) 495 CONTRACTOR SHALL EXTEND/KEY EDGE OF FOREBAY DAMS INTO EMBANKMENT 4' BEYOND DAYLIGH77NG EDGE AT 495' (TYP.) CONTRACTOR SHALL EMBED WEI j I tt :, Rhin 10 FOREBAY DAM 18" BELOW !R t FOREBAY DAM 18" BELOW CONTRACTOR SHALL EXTEND/KEY BOTTOM OF BASIN BOTTOM OF BASIN _ 3"' - EDGE OF FOREBAY DAMS INTO 43 FOREBAY DAM SHALL BE CONSTRUCTED OF 1.8 IS Y;, - 54 EMBANKMENT 4' BEYOND 485 -- ----57- - ?� x ,37 f fmpeNous Area from Approved Avinity 1= GABION BASKETS FILLED VDOT #3 COARSE 485 DAYLIGH77NG EDGE AT 495' (TYP.) c� �Qx t 485 AGGREGATE ON THE INLET SIDE & CLASS I � RIPRAP ON THE OUTLET SIDE. FOREBAY DAM 405,825 sf Rock or gravel A[ toe drain Total (includes 5% Factor of Safety) = r- O 4_ 0 to O SHALL HAVE A GEOTEXTILE FILTER FABRIC UNDERLAYMENT. o0 0 b `— N LO to L0 � lo - Y �» Area of 0+50 • / to j 0+00 t t ' (4x)=36, 72 cf C •�" �'. • • if'• i 0+50 1+00+25 e NOTE: 2 -YEAR PEAK WSE FOR ULTIMATE BUILDOUT --498.80' 10 -YEAR PEAK WSE FOR UL77MATE BUILDOUT=499.92' 100 -YEAR PEAK WSE FOR ULTIMATE BUILDOUT=500.93' r i' •i FFF rrrr##t it " riy#�4ir « •�/r#i##f4i!#rte ;,,sof "*r..nt s�� `•'•`` t#IMr�f i##��' i,��r!r� rtli�� 4., < a r•r�'�4 Iii,... � �#####Rlr;� � �,: f �`R'`�.e��,%�r, � ",r !s 3f , . i .r#At##Rt##rr► "•'ac• ` + .y x �%;!;r �r �lF��e�yi` � !"tf1��l�rrt#1#er '► �� '' `1�1r����R`wt�` Ar#aliirlirlrertrl+►r=ryi 4 EEL. �,ffits�r0 Mff. lilli�li�lr���#1%;� '� �4►i # r f ii r # r. # r J` # ��#tRrxi i�tii OWN ajar 0 ,/I f . psi`!++'` • :.' / 1Xt17#ri '� a In jet r■�ji #air• � � • #### r 1 r z z 515 GRADE 510 515 515 5101 1510 505 505 100 YEAR W S.E.=500.84' 10 YEAR WSE. =499.89' 2 YEAR 500 WSE.=498.89' S00 490 ornogeneous fill j Dim B tt :, Rhin 10 MIR OD !R t FOREBAY DAM 18" BELOW CONTRACTOR SHALL EXTEND/KEY BOTTOM OF BASIN — _ 3"' - EDGE OF FOREBAY DAMS INTO 43 27 Y4 i -60 1 2,7 3S 1.8 IS Y;, - 54 EMBANKMENT 4' BEYOND 485 -- ----57- - ?� x ,37 f fmpeNous Area from Approved Avinity 1= irRIN 485 DAYLIGH77NG EDGE AT 495' (TYP.) c� �Qx t Sand, gravel or rack � VDOT STD. EW -1 405,825 sf Rock or gravel A[ toe drain Total (includes 5% Factor of Safety) = r Re „ tG 0 a 0i O � o0 a �0) ,t, T..M, ' C s LO i # Y �» Area of 0+50 • / R t ►r��.� , Cp C t t ' (4x)=36, 72 cf C •�" �'. • • if'• i ( 490a 9,002 0 e 4 12,037 t A3 4'92 10,836 19,810 5 13,E .,�3 1 ELEV. 490' 49 13,861 S+E, 771 5 515 515 5101 1510 505 505 100 YEAR W S.E.=500.84' 10 YEAR WSE. =499.89' 2 YEAR 500 WSE.=498.89' S00 490 T Milk Ala MIIL r NOTE - 2 -YEAR PEAK WSE FOR ULTIMATE BUIL�vu'T==498.80' 10- YEAR PEAK WSE FOR UL TIMA TE BUILDOUT --499.92' 100 -YEAR PEAK WSE FOR ULTIMATE BUILDOUT=500.93' ornogeneous fill j Dim B -CONTRACTOR SHALL EMBED Rhin 10 MIR OD !R r4rrjli� FOREBAY DAM 18" BELOW CONTRACTOR SHALL EXTEND/KEY BOTTOM OF BASIN — _ 3"' - EDGE OF FOREBAY DAMS INTO 43 27 Y4 i -60 1 2,7 3S 1.8 IS Y;, - 54 EMBANKMENT 4' BEYOND 485 -- ----57- - ?� x ,37 f fmpeNous Area from Approved Avinity 1= irRIN 485 DAYLIGH77NG EDGE AT 495' (TYP.) 185,450 sf �Qx X729 f (Assumes 65% of QA #1C is impervious) Sand, gravel or rack QV x4 VDOT STD. EW -1 405,825 sf Rock or gravel A[ toe drain Total (includes 5% Factor of Safety) = r Re „ tG 0 a 0i O � o0 a �0) ,t, T..M, ' C s LO i # 0+00 Area of 0+50 1+00 T Milk Ala MIIL r NOTE - 2 -YEAR PEAK WSE FOR ULTIMATE BUIL�vu'T==498.80' 10- YEAR PEAK WSE FOR UL TIMA TE BUILDOUT --499.92' 100 -YEAR PEAK WSE FOR ULTIMATE BUILDOUT=500.93' ---- rr7 r 1 i'?rCI'IIRaX"''�"` ROUND SERIES TRASH RACK ONC M MANHOLE STNNf. ARD BD INCH RACK SHOWN 1i JUENSIQNS IN INCHES Plastic Solutions, Inc, PO Bcns 4386, WI ndw! t.x, "�'li 2 26W s ZZ � Rd. VArrr,hest�, VA �°, (�'738T1-ST,2,71a�tuaA 4540) 722-2219 &x 1rt�r:llw.gla• soiudrn.+.^�om Pt.A,STIC SOLUtIONS, INC. SIDE VIEW StormRaXTM Round Series for Concrete Manhole ornogeneous fill Part Pio. ,, Dir A. Dim B DIM C Rhin 10 MIR OD (15-24 a 1.7 gra r4rrjli� l� 24 313 i 14Q 1� rws 43 27 Y4 i -60 1 2,7 3S 1.8 IS Y;, - 54 -- --48 -- ----57- - ?� x ,37 f fmpeNous Area from Approved Avinity 1= irRIN 'haler Q i vole FOUNDATION DRAIN BLANKET DRAIN 185,450 sf �Qx X729 f (Assumes 65% of QA #1C is impervious) Sand, gravel or rack QV x4 VDOT STD. EW -1 405,825 sf Rock or gravel A[ toe drain Total (includes 5% Factor of Safety) = r Re „ V DAM ELEV = 495. SEE ■trtlt� � TWO (2) 6'x6' STEEL o:\3_Ui-1tr ,t, T..M, ' C s 3.01-3 i # MIN. SQUIRE WQV Area of I 49C 5,601 1 ,, / 1iNFtF1 OF FO C DETAIL ON THIS SHEET FOR (4x)=36, 72 cf e ( 490a 9,002 0 e 4 12,037 t A3 4'92 10,836 19,810 5 13,E .,�3 1 ELEV. 490' 49 13,861 S+E, 771 5 Z w n c i� 495 f / OR!, -tCE CO FF = 05 502 261,442 207,971 6' 18” DEEP C •glia i1 SOTTO OF R f ,►�_ EDDED FF=507.46 / 30" CL. !I! RCP BARREL 60 LF 0 0.509 (basement) #rreui r�rrrl 1 Story Frame ELEV.` = 490 , �: W/basement _ FF=515.88 Irnr A ��C MIN. 8 , WIDE TOP 9' DEP IMPS MOUS ORE & _i7�I f I7e'Iflirl � ...,,,fir*�'►�Rt>.i. a� s r *�# # Q D illi rw•. �M�Q'..ri ~ ►M .7 ---- rr7 r 1 i'?rCI'IIRaX"''�"` ROUND SERIES TRASH RACK ONC M MANHOLE STNNf. ARD BD INCH RACK SHOWN 1i JUENSIQNS IN INCHES Plastic Solutions, Inc, PO Bcns 4386, WI ndw! t.x, "�'li 2 26W s ZZ � Rd. VArrr,hest�, VA �°, (�'738T1-ST,2,71a�tuaA 4540) 722-2219 &x 1rt�r:llw.gla• soiudrn.+.^�om Pt.A,STIC SOLUtIONS, INC. SIDE VIEW StormRaXTM Round Series for Concrete Manhole ornogeneous fill Part Pio. ,, Dir A. Dim B DIM C Rhin 10 MIR OD (15-24 a 1.7 gra r4rrjli� l� 24 313 i 14Q 1� rws 43 27 Y4 i -60 1 2,7 3S 1.8 IS Y;, - 54 -- --48 -- ----57- - ?� x ,37 f fmpeNous Area from Approved Avinity 1= irRIN 'haler Q i vole FOUNDATION DRAIN BLANKET DRAIN 185,450 sf �Qx X729 f (Assumes 65% of QA #1C is impervious) Sand, gravel or rack QV x4 VDOT STD. EW -1 405,825 sf Rock or gravel A[ toe drain Total (includes 5% Factor of Safety) = r Re „ V DAM ELEV = 495. SEE ■trtlt� � TWO (2) 6'x6' STEEL o:\3_Ui-1tr ,t, T..M, ' C s 3.01-3 i # MIN. SQUIRE WQV Area of I 49C 5,601 1 ,, / 1iNFtF1 OF FO C DETAIL ON THIS SHEET FOR (4x)=36, 72 cf e ( 490a 9,002 0 e 4 12,037 t A3 4'92 10,836 19,810 5 13,E .,�3 49 ELEV. 490' 49 13,861 S+E, 771 5 Z w n c ADD177ONAL INFORMATION. 495 500 23,763 157„790 OR!, -tCE CO FF = 05 502 261,442 207,971 6' 18” DEEP C •glia i1 SOTTO OF R J ,►�_ EDDED \ 30" CL. !I! RCP BARREL 60 LF 0 0.509 #rreui r�rrrl BASIN ELEV.` = 490 , �: • _ INV. IN= 494.30' Irnr A ��C MIN. 8 , WIDE TOP 9' DEP IMPS MOUS ORE & _i7�I I7e'Iflirl � ...,,,fir*�'►�Rt>.i. a� s r *�# # Q D illi rw•. �M�Q'..ri ~ ►M .7 !## 1:1 AX. SI SLOP S. SEE i 1 I W Ln 485 DETAI ON THS SHiif FOR A DIVONgL INFORMATION. ---- rr7 r 1 i'?rCI'IIRaX"''�"` ROUND SERIES TRASH RACK ONC M MANHOLE STNNf. ARD BD INCH RACK SHOWN 1i JUENSIQNS IN INCHES Plastic Solutions, Inc, PO Bcns 4386, WI ndw! t.x, "�'li 2 26W s ZZ � Rd. VArrr,hest�, VA �°, (�'738T1-ST,2,71a�tuaA 4540) 722-2219 &x 1rt�r:llw.gla• soiudrn.+.^�om Pt.A,STIC SOLUtIONS, INC. SIDE VIEW StormRaXTM Round Series for Concrete Manhole ornogeneous fill Part Pio. ,, Dir A. Dim B DIM C Rhin 10 MIR OD (15-24 a 1.7 gra 14 Yt 28 24 313 RS 36 21 14Q 1� 0 43 27 Y4 i -60 1 2,7 3S 1.8 IS Y;, - 54 -- --48 -- ----57- - ?� R XISTING+— RADEGRADE' 39" RCPMULTI-S9'AG E ELE .= 498.75: LOW --FLOW ORIFICES AT 1 IN AC�ORDANgE w/ N THI SHEET, OR E 515 510 I ER RIM � 505 JR 05" 496.0' f 0' WIDE TOP OF DAM ELEV.= 502.0 MAX. EMBANKMENT 500 HT.=4' (502-498) TH 0 I SCOTT R. COLLINS�e > No. 35791 A0 ��SSIANAL FIGURE 3.01 -1a Homogeneous Embankments W Seepage Conlruls• ornogeneous fill ' MINIMUM WQV REQUIRED 110 WTD AQUA C/ 1 .. -Cut off trench -4' below suitable MINIMUM WQV PROVIDED I material Soil or rock L _..... — — — .,.,....,.......... — — � EDGE OF STREAM TYPICAL HOMOGENEOUS O EMBANKMENT 100 -YEAR PEAK WSE FOR UL TIMA 7E BUILDOUT=500.93' 0 Q F 5' WIDE FOREBAY TOP OF Rack or gravel Pipe Outlet x t'ioars f$t$i' x ,37 f fmpeNous Area from Approved Avinity 1= around s o s Perforated collector ' Blanket drain -Foundation drain 'haler Q i vole FOUNDATION DRAIN BLANKET DRAIN 185,450 sf Chimney drain X729 f (Assumes 65% of QA #1C is impervious) Sand, gravel or rack QV x4 VDOT STD. EW -1 405,825 sf Rock or gravel A[ toe drain Total (includes 5% Factor of Safety) = r Re „ V DAM ELEV = 495. SEE CHIMNEY DRAIN TOE DRAIN TWO (2) 6'x6' STEEL o:\3_Ui-1tr d s 3.01-3 i (65�% Removal= V'WQV x 4) MIN. SQUIRE WQV Area of I 49C 5,601 1 ,, / v OF FO C DETAIL ON THIS SHEET FOR (4x)=36, 72 cf € ( 490a 9,002 0 I MWSE= 96.0' 4 12,037 t A3 4'92 10,836 19,810 5 13,E .,�3 49 ELEV. 490' 49 13,861 S+E, 771 5 Z w n c ADD177ONAL INFORMATION. 495 500 23,763 157„790 OR!, -tCE CO FF = 05 502 261,442 207,971 6' 18” DEEP C CRETE 495 SOTTO OF R J o FIGURE 3.01 -1a Homogeneous Embankments W Seepage Conlruls• ornogeneous fill ' MINIMUM WQV REQUIRED 110 WTD AQUA C/ 1 .. -Cut off trench -4' below suitable MINIMUM WQV PROVIDED I material Soil or rock L _..... — — — .,.,....,.......... — — � EDGE OF STREAM TYPICAL HOMOGENEOUS O EMBANKMENT 100 -YEAR PEAK WSE FOR UL TIMA 7E BUILDOUT=500.93' P _, Transition fill Phase]. T A4 Rack or gravel Pipe Outlet x t'ioars f$t$i' x ,37 f fmpeNous Area from Approved Avinity 1= around s o s Perforated collector ' Blanket drain -Foundation drain 'haler Q i vole FOUNDATION DRAIN BLANKET DRAIN 185,450 sf Chimney drain X729 f (Assumes 65% of QA #1C is impervious) Sand, gravel or rack QV x4 Broin mallet 405,825 sf Rock or gravel A[ toe drain Total (includes 5% Factor of Safety) = r Re „ Areaof �� Transition filter Transition filter CHIMNEY DRAIN TOE DRAIN TWO (2) 6'x6' STEEL o:\3_Ui-1tr d Sow-ce: SCS EAgineei,in Fk.,A W(bnval 3.01-3 NOTE. - ' MINIMUM WQV REQUIRED 110 WTD AQUA C/ MINIMUM WQV PROVIDED WITH ULTIMATE BUILDOUT=72,993cf 2 -YEAR PEAK WSE FOR EDGE OF STREAM O :5q 100 -YEAR PEAK WSE FOR UL TIMA 7E BUILDOUT=500.93' P _, b , Phase]. T A4 SAFETY BEN H 1r71 � f~r .+ r A.vh+''l x ,37 f fmpeNous Area from Approved Avinity 1= 220,375 sf 'haler Q i vole BANKS 185,450 sf c"n X729 f (Assumes 65% of QA #1C is impervious) aS QV x4 Subtotal - 405,825 sf Total (includes 5% Factor of Safety) = 426,116 sf Areaof �� Elmbo1i it) P� VoI� 4'� TWO (2) 6'x6' STEEL 17,755 cf d Water Quality Volume Required z 00 (65�% Removal= V'WQV x 4) MIN. SQUIRE WQV Area of I 49C 5,601 1 ,, Elevation Wet Pond Volume (cf) SOTTO OF FO ♦BAY (4x)=36, 72 cf € _..,....._._. 10,405, 490a 9,002 0 ANTI -SEEP COLLARS 4 12,037 t A3 4'92 10,836 19,810 5 13,E .,�3 49 ELEV. 490' 49 13,861 S+E, 771 5 QV PR VIDED= i 8, 611 cf 496 18,710 72 996 49 0 Nl*a 500 23,763 157„790 502 261,442 207,971 6' 18” DEEP C CRETE SOTTO OF R TEN7T0 BA E w/ SER E EDDED 30" CL. !I! RCP BARREL 60 LF 0 0.509 z BASIN ELEV.` = 490 ! 6 INTO ONCRE (MIN.) _ INV. IN= 494.30' MIN. 8 , WIDE TOP 9' DEP IMPS MOUS ORE & _i7�I { INV. OUT= 494.00' Q D CUTPFF TRENCH WITH 1:1 AX. SI SLOP S. SEE i 1 I W Ln 485 DETAI ON THS SHiif FOR A DIVONgL INFORMATION. 4851 tY 00 N O O � N a L0r., 00 m to 0)a a �I d a U rn a �r N 1+50 2+00 2+50 3+00 3+50 4+00 N � NOTE. - MINIMUM WQV REQUIRED FOR ULTIMATE BUILDOUT--71,019cf MINIMUM WQV PROVIDED WITH ULTIMATE BUILDOUT=72,993cf 2 -YEAR PEAK WSE FOR UL 77MA TE BUILDOUT=498.80' 10 -YEAR PEAK WSE FOR ULTIMATE BUILDOUT=499.92' 100 -YEAR PEAK WSE FOR UL TIMA 7E BUILDOUT=500.93' P _, PHASE 11 RETENTION BASIN REQUIREMENTS: Phase]. T A4 Phase ll. Approved Avinity + A�anifiy Il 1r71 � f~r .+ r A.vh+''l x ,37 f fmpeNous Area from Approved Avinity 1= 220,375 sf 'haler Q i vole 9,182 of Impervious Area Credit for Avidity 11= 185,450 sf Water Quality Mylune Requirede X729 f (Assumes 65% of QA #1C is impervious) QV x4 Subtotal - 405,825 sf Total (includes 5% Factor of Safety) = 426,116 sf Areaof �� Elmbo1i it) P� VoI� 4'� Water Quality Volume 17,755 cf Water Quality Volume Required 71,019 cf (65�% Removal= V'WQV x 4) 499 4,439 Area of 49C 5,601 1 ,, Elevation Wet Pond Volume (cf) 4� 1 22,,48 (ft) Contours _..,....._._. 10,405, 490a 9,002 0 4 12,037 t A3 4'92 10,836 19,810 5 13,E .,�3 494 12,8'37 43„435 _. 5132 _ ,..: 49 13,861 S+E, 771 5 496 18,710 72 996 498 21,186 112,866 500 23,763 157„790 502 261,442 207,971 NOTES FOR. TRASH RACK I., TP kSH RACK 70 8E Cf=NTEKCEID #� �# OP IKG. 2,STEELTCI C•OlC+. FORM TO ASTM A - 1i6, S, ALL SURFACES TO M COATM WT14 C t_,O10 > LVANIIZIN OMPOUND AETE:R',� WELDING. +E_ TT�T°! D14 `TO 0� STA EI�I�E3 `t1rt `TE-ilE �ISEfI.'JurlT�i 1�,, �IF91��`# +Ot"t�i Tt�fy�i'9 ISA TSS � `R19MAr�LE, STOCK ALL AROUND 12-01 AMETHoOLE 3 tl��Tr E PAND ED STEEL GRATE ON TOS', BOTTOM, D S40ES LD 4` V*9 0' AX L AVER ALL. E (7FYP,)