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HomeMy WebLinkAboutWPO200600064 Plan - E&S Erosion Control Plan 2007-01-16\ \ \ \ \ \ ,2',; \ i� '— '4 ``" --- Jam_ -' '.--'" .- '"- '' / / / f / � / / % r' {7 _ / rf f / • i \ \ \~ \ ~ \ \ r `'°` 10 20 40 80 \ s �•. _ \ � \ \ %� . \ \� },'fir � Yy�>"' "`a- ` \,` - ,> ____ — _ � �— —_ ' ' / ^ / / % / / / / % / ` / / / / / f / ! / i / � a j / / ( I I /I • f /� I 1771 \ \ \ \ \ \\ \ \ \ \ \ ! -! - - -I r -- _ -\- - -- -- -- - - -- ., -- ' Ji / / / , r r •�' / �,,,-- • •----/ � 'r 2'' / 'IUNfS�TTSA�LSLTSFSTORM EB2'BT' SFv✓ LMtTS OF QISTURBANf BYPAS7,1`fSITE ) ! \ \ WATIR i \ / ! ..- 61 _ \ \ _ - / oil-\ ! G \ % -. _. _ - _ _ - _ / r / r�i4S � ' / / f€n / G 1 G i W ---/ W \ - -- - . \ 1 \ / - t - G W \ 1 5 \ . W 1 \ I I \ SOlLS DIVIDE r OHE t HE 1 oN ! - \ _ �I I 3 • I ( I i ! � E j / / t \ \ { I / / I I [ � \ ``` � - - - - - --- __ _ _ __ __ __ ---- - -- -- --- - __ __ - - -- - - -` / , , �' , ..-' ,.- '' . -' �- % ,. y� % `. --' _, ' I -- ' ! - `` ,_-• i t CTO) I I I I I I / / \ \ \ I I I // 1 j \ \ \\ -- ` `--- - r, - / STOCK PILE AREA TEMP. SAFETY/FENCE ( 1 ` I �,, EXIST. EDGE I' I I " 1 \ \ ' I 1 G - - / / / / / - I 1 _ ( I I I ! \ I 1 / S;c f / OF PAVEMENT)s 31!\A / \ I__ _ _- __ _ _ _ _ __ — ___ __ — _- -_ — -- — _ — _- — _- -- -- - .- -' , /.-- / ( I I I i i I I 1 } { I I ! ! \ \\ -- _ -- _ l / x -- .-' STAGING AREA-- � SOILS TYPE 21C • { i j i � ! ! I `\ f. __ _-. - _ _-- _, •'" , -- % -" � / / % CE I CRiTIALROSIONIARE I ! ! I I ! ! \ \ - -- -- - - - -- - _ _ ~ ' f - / ' / ST / ♦ ; DC TEMPORARY w I CONSTRUCTION j r /' / SOILS TYPE 88 / 59,3ENTRANCE r APPROX. 60' OF BAFFLE WALL EXCAVATED DROP INLET f / q, X r 1i • / SEDIMI=NT TRAP WITH INSTALL S1T0RMjLINE'AI I I \ \ \ \\ _ /' ` % % / TEMPORARY DI -7 TOPS AND UP TO STfUCTURE R3 T,D INLETI PROTECTION i!'` / wct� \ • I BYPIASS 6FFSITk WATER • / TEMPORARY 30" CMP RISER WITH TRASH RACK AND ✓ / l \ \ \ \ / _ TEMPORARY 18" >C _ ANTI -VORTEX DEVICE SEE INLE TO BE BLACKED \ \ -- l _ - f HDPE STORM @ �� SO THAT NO ON-SITE \ \ -� � ! / ' -A DETAIL) \ \ \ \ / 5.39% SLOPE i}� f ! r ' ! WATER�ITERS BYPASS CO J - - 69.76 LF OF TEMP 21" CMP PIPE DURI G STAGE\1; CULVERT @ 2.00% \ �\ r TYPICAL. IINN OUT 581.24 TEMPORAR-/48" \ \ t HDPSTO�M @ 7 1 X X X X Tc PATH TO oE I SEDIMENT TRAP tt 2.19 /o SLOPE DD INA Il ( I \ T \ \ \ t DD\-�—D D DD-- D[} --D \ DD --DD----= DD- QD \ DD- DD --D s. �F--- _ _ SRr----- SF - SF\ S� SF-- ._\ \ \ \ F I., .� .. \� -��- \\ ,„ �•-- `'`S . - ..:.- �. _ �. I / . -� a IN UT 580.00 • I _ - \ \ \ ""�� �— \ \ TEMPORARY TEMPORARY �' \ { I S� F` S �\ \\ \\ \ \\ DIVERSION DIKE \SILT FENCE `\ f :--,•F 1 lco\ (0 74— t0\\ `\ `\ \\ \ "� ` \ Ira _ - -• - \ \ \ ,c� \ \ \ 1'� L 1 Ico /~ / f f ell 10' 20' - 40' --80 ` ` / f / 1 _ jj \ \ \ \ - - -- - - -- - --- - CONTRAT©R TO DETERVIINE MOST / / f j \. \ \ o \ \ \ �- - - -\ G23-622- - - =`= _� - - __ - - - _ i - - - - - COST AFFECTIVE t�lE'ANS OF �: / /' / i l� \ N \ I Ii ri J LiMiTS OF ,-- � .-- ,-- � / /PROVIDING IN ET PROTEC�ON FOR / i / / / / • � / ,--^, T f `" f/ // �-1 m � J /l rl I �. � •� r %- / COURTYARD DRAINS EACH RA ' ,� a,..-• � -- / r „.. DISTURBANCE TO REC,EE PROTECTION. r .• ---'/' / ' `�. / f , ( ! i - - -- . / r .. r i G 1 __ G t \ W C) W ---- -®l W s _ ,• 1 rl \ 1 - , • j f / \ \ / / / i W \ 1 1 1 I I } F ` / I / if 1 � k I I I' I I ! I \ � r1 - � - ' ' � I � `� I -- _ __ 606 _ •- '" .- / / / � % � � f / ,- h�� / / / � I t1 I / /; i t1 I I !I !V ulpL i - - _. I P / ) r e // / ' / / J ---- - OH>= ONE � I� � o ,'\ - - f N 6� r ,,• � � / /'/ f .r- .% ,- � l -'' _ I 00 \C-01OX A'] I � �•I r a I I 1 � I�` � I I i T`Q U - _ - � ,.-�, , �\ _ T� �vii7 _- - - - - T amu- / / TO MPJ // // /\(f SOILS TYPE 21� 1 l GPS { I I I sp I PS- - US - -- -- - - -- -- - .'. 1P `1p - pS % / ,- ` /. ip alwN SOILS TYPE 88 ! ���' �� ,' / , ,, � , / FS / I i f I / ,. � i IP ip ODP / /` / / /' tet•,/ I l { I -- I i / / I I I I i t I \ �i ; \ \ \ 1 \ \SipI I I \ +— �_ W �--V�� W--' --- \ 1/i/ \VV�Q W �p tiW W W W - / \' t I F_ __---- F F SF F\`_`�--SI:' f___SF-- --SF 1�' \ \ F 1 , 590 J - - \ \ I 5 �F_ �m lit 1 \ \ I SF - / \ \ \\ \ \ \ \ \ \ \ \ \ \ \ 8(�� OPS \?� 7 Jai 00 \ STAG -"E SEE SHEET 20 FSR CCO1 STIRUCTION SEQUENCE) DETAILSg LEGEND, AND NOTES T1H "" "'D "'D A I JL\JL\ CONCEPTS, PCC Civil Engineering ]Landscape Architecture 224 COURT SQUARE CHARLOTTESVILLE, VIRGINIA 22902 PH. 434-295-4005 FAX 434®295-2103 ISSUED: 8/7/06 DRAWN BY- MLW REVISIONS: 1. 10-16-06, C3JACSA COMMENTS 2. 1122-06, ADO SWM EASEMENT & RET. WALL BUFFER 3. 0102-06 REV. STRMFILTER DET APPROVE by the AJ'-m11arle County Community Devisiopment Department Wee. ..... ./-t(z� - - L,,p445 All rights reserved. No part of the material protected by this copyright (plans, ideas, designs, sections or details expressed on these plans) may be reproduced, changed or utilized in any form or by any means, electronic or mechanical, including photocopying, scanning, or by any other means of retrieval system without written permission from Terra Partners, LLC. Also, these plans may not be assigned to a third parry without first written authorization of Terra Partners, LLC. © TERRA PARTNERS, LLC f , Aflan ISSUED: 8/7/06 DRAWN BY- MLW REVISIONS: 1. 10-16-06, C3JACSA COMMENTS 2. 1122-06, ADO SWM EASEMENT & RET. WALL BUFFER 3. 0102-06 REV. STRMFILTER DET APPROVE by the AJ'-m11arle County Community Devisiopment Department Wee. ..... ./-t(z� - - L,,p445 All rights reserved. No part of the material protected by this copyright (plans, ideas, designs, sections or details expressed on these plans) may be reproduced, changed or utilized in any form or by any means, electronic or mechanical, including photocopying, scanning, or by any other means of retrieval system without written permission from Terra Partners, LLC. Also, these plans may not be assigned to a third parry without first written authorization of Terra Partners, LLC. © TERRA PARTNERS, LLC DRAINAGE SWALE DIRECTS FLOW TO SEDIMENT BASIN 70' MIN. 3" SM -2A ASPHALT TOP COURSE A 2% 2% r; AX - DIVERSION DITCH A SIDE ELEVATION EXISTING GROUND EXISTING PAVEMENT 6" VDOT #21A AGGREGATE BASE 70' MIN. ASPHALT PAVED WASHRACK 10 MIN' I2% RIS r 12' MIN. EXISTING I PAVEMENT 2% 2% DIVERSION DITCH MIN.-/ DRAINAGE F�POSITIVE 10 MIN. WIDTH AT DESIGN WATER TO SEDIMENT ELEVATION IS 4.0' I TRAPPING DEVICE PLAN VIEW MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS SET 1f2' WATER HYDRANT WITH OPERATION FROST PROC = HYDRANT 3' 70' MIN. ABOVE GRADE AND 4' OFF EDGE OF PAVEMENT 2% III M -III -III 111 ' I-7,7771-17- f (r T-1 I 7 �`4�`j1�'r2 `.. �-�� � �C3�-7 11 I I I i I i i v NOTE: A MINIMUM WATER TRAP OF V IS REQUIRED WITH A MINIMUM WASH HOSE DIA. OF 1.5" SECTION A --A A LBEMARJLE COUNTY T Y CONSTRUCT ION __7)IENTRANCE 20 / SECTIO E-001 N.T.S. SOURCE: USDA -SCS D D/2 NO SCALE INFLOW 1 `s. RISER PLATE. 3.14-6 L = TOTAL DISTANCE FROM THE POINT OF INFLOW AROUND THE BAFFLE TO THE RISER. NOF ISER SHEETS OF 4'X 8'X 1/2" EXTERIOR PLYWOOD OR EQUIVALENT 1 I) 4' I I� II 8' 6" RISER CREST ELEVATION SOURCE: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control,VA. DSWC Sherwood and Wyant 1. SET THE STAKES, 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. 6'MAX. ,-� G--�-/%�-.-- / � ,,,,-s Gam"✓/' I f _ FLOW 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. -_.,- i _ r x FLOW i III SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) FI 0W PLATE. 3.05-2 SOURCE: VA. DSWC r -- GRAVEL FILTER* RUNOFF WATER SEDIMENT -J CONCRETE GUTTER SPECIFIC APPLICATION DRIP LINE SNOW FENCE AWIAil ! I ' �i0♦Di♦i♦iii*i♦i♦i♦i�i'01000i�i� 250-9-101; i��♦i♦i♦i♦i�i�i♦ii�0iy►t"0i�♦♦i�i*i�iRS ♦NEW i♦s� auh o'l I`�Illt'F°!� / t� I;\ ti731 rYi ih' Yiawdr } 1 THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS POINTS A SHOULD BE HIGHER THAN POINT B. „ + ad�l ° I' �f a+ �u�n WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE I$,+�. DRAINAGEWAY INSTALLATION INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED ; nrr 1 / Nq (FRONT ELEVATION) AREAS. 0*0 =;i. 41110101 CORRECT TRUNK ARMORING * GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE. ovodl CONSTRUCTION OF A SILT FENCE TRIANGULAR BOARD FENCE (WITHOUT WIRE SUPPORT) • CGRAVEL CURB INLET SEDIMENT FILTER FENCING AND ARMORING (® DETAIL E-028 �® SECTION E-012 20DETAIL E-071 N.T.S. Nr T.S. KT,& SOURCE: VA. DSWC PROVIDE ADEQUATE POLYETHYLENE CAP PLATE. 3.14-15 Source: Public Facilities Manual, Vol. II1, Fairfax Co., Va., 1976 Plate 3.38-1®��� o STRAPPING `'�-- STAGE 1 CONSTRUCTION SEQUENCE: - - 1. BEGIN CONSTRUCTION ENTRANCE GRADING AND INSTALLATION. DEPTH 2. INSTALL SEDIMENT TRAP. INSTALL TEMPORARY RISER AND OUTFALL PIPE. TACK WELD VARIES AS 3. INSTALL PERIMETER SILT FENCE AND DIVERSION DIKE. CLEAR AND GRUB ACCESSWAY TO REAR OF SITE. SEE INITIAL - - * REQUIRED DRIP LINE LIMITS OF CLEARING AND GRADING. PERFORATED POLYETHYLENE FOR DRY DRAINAGE TUBING, DIAMETER STORAGE 4. INSTALL STORMWATER CONVEYANCE PIPES AND STRUCTURES PROPOSED AROUND PERIMETER OF THE SITE TO VARIES (SEE CALCULATIONS IN APPENDIX 3.14-A) PROTECTIVE DEVICE COLLECT AND DIVERT OFF SITE WATER TO BYPASS SEDIMENT TRAP. 5. INSTALL TEMPORARY DI -7 TOPS ON SPECIFIED STRUCTURES. I I MAXIMUM LIMITS OF 6. PERFORM PERIMETER GRADING AND CREATE SWALES TO SUPLEMENT STORMWATER CONVEYANCE OF OFF SITE WET CLEARING AND GRADING WATER. " FERNCO-STYLE " COUPLING STORAGE PROPOSED GRADING \ 7. INSTALL PERIMETER RETAINING WALLS. DEWATERING ORIFICE,' ° 8. PERFORM ROUGH GRADING AS SHOWN IN STAGE 1 DIAGRAM. SCHEDULE 40 STEEL STUB 1 -FOOT MINIMUM, CORRUGATED METAL RISER DIAMETER VARIES (SEE CALCULATIONS IN / je MIN, 5' (0 9. MAT, SEED AND MULCH WEST AND SOUTH SLOPES TO BEGIN STABILIZATION PROCESS. APPENDIX 3.14-A) WHERE DRIPLINE NOTE: WITH CONCRETE RISER, USE PVC SCHEDULE 40 STUB FOR DEWATERING ORIFICE IS LESS THAN 10. SECURE FLAT AREA FOR LAYDOWN, EQUIPMENT STORAGE, AND CONTRACTOR TRAILER. ADD STONE AS SURFACE. *DRAINAGE TUBING SHALL COMPLY WITH ASTM F667 AND AASHTO M294 5 k.?3`{,".:-� STAGE 2 CONSTRUCTION SEQUENCE: RECOM�1 EN DED DEWATERING SYSTEM FOR CONSTRUCTION TION O PEJIVATIONS RELATIVE 11. BEGIN EXPORT OF EXCESS SOIL TO APPROVED LOCATION. SEDIMENT BASINS TO THE /LOCATION OF PROTECTED TREES 12. COMPLETE ROUGH GRADING OF SITE AND EXPORT PROGRAM. �OE-078 E-072 13. ONCE WALLS ARE COMPLETE AND ROUGH GRADES ARE ESTABLISHED, INSTALL REMAINING STORM SEWER ON EAST ������' NT.S. �® DETAIL Na T.S. SIDE OF SITE, ADD INLET PROTECTION AT THESE LOCATIONS. 14, INSTALL ALL WATER, SEWER, GAS, ELECTRIC AND OTHER UTILITY MAINS AND SERVICE LATERALS. MARK ENDS WITH SOURCE: USDA -SCS HOLES RE R LIE PLATE. 3.14-10 WITNESS POSTS. 15. ESTABLISH FINISH GRADES UNDER PARKING AND TRAVELWAYS AND INSTALL STONE ROAD STABLIZATION OVER ALL 0 A / / II --� � \ A O /� O TOP STIFFENER (IF REQUIRED) L/ IS-X--X_-ANGLE WELDED !i0N 16. ESTABLISH FINISH GRADES FOR ALL BUILDINGS AND PLACE TEMPORARY SEEDING AND STRAW OVER PAD SITES. -/- II '_ j/j O TO TOP AN TO PER- 1, UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSAND SEDIMENT CONTROL PRACTICES WILL BE O -ju # - -�� CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND 17. ONCE MOST PAD SITES ARE SEEDED AND MULCHED AND MAJORITY OF PARKING AND TRAVELWAYS AREA UNDER STONE, II j j I SEDIMENT CONTROL HANDBOOKAND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. REMOVE SMALL SECTIONS OF DIVERSION DIKES ONE AT A TIME TO PERMIT INSTALLATION OF ALL OTHER DRAINAGE TOP IS -GAGE o _ II / o I ° ° I METAL OR 1/8" SOTEELGATED PLATE. 2. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE STRUCTURES AND PIPE. IMMEDIATELY THEREAFTER REMOVE BALANCE OF DIVERSION DIKES AND INSTALL CURB ON PRESSURE RELIEF HOLES MAY WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO FINAL INSPECTION. SOUTH AND EAST SIDE OF SITE. ADD INLET PROTECTION AT ALL, INLETS. CONVERT TEMPORARY DI -7 INLETS IN STAGE 1 BEOM ITON3 IA EENDS OF FULLY 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS A FIRST STEP IN CLEARING. TO FINAL STATUS. PLAN VIEW I I ATTACHED. OPEN EN THE TOP IS 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 18. AS BUILDINGS ARE COMPLETED, INSTALL CURB, SIDEWALKS, ETC. IMMEDIATELY SURROUNDING THAT AREA AND PLACE r D 5. RIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT LANDSCAPING AND GROUNDI COVER PER PLANS. INSTALL ASPHALT PAVING AS SOON AS POSSIBLE. TAC---•-•I I NOT LIMITED TO, OFF-SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION ALL ARO w CYLINDER IS -GAGE CORRUGATED , 19. CONSULT REGULARLY WITH COUNTY EROSION CONTROL AGENT TO DETERMINE WHEN CERTAIN AREAS OF SITE ALL AROUND -: METAL PIPE OR FABRICATED FROM CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. +.--POSTS MIN- SIZE 4" SQUARE OR 5" ROUND. SET AT #s X 1 LEAST S INTO THE GROUND. SPACEF (TYPICA �_ E _� BAFFLE LOCATIONS IN SEDIMENT BASINS qo SECTION SOURCE: VA. DSWC APPROVAL AUTHORITY OR ENGINEER MAY REQUIRE DIVERSION TO BE CONSTRUCTED OF ASPHALT ONCE PAVEMENT WITHIN R.O.W. OCCURS. (`mm�aniarJ Cnil I�--4.5' min. H _� TEMPORARY DIVERSION DIKE BAR SIZE 4R MIN.) 1/8 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION MEASURES NECESSARY TO PREVENT QUALIFY AS STABILIZED. DECOMMISSION ES&C MEASURES AS PERMITTED. ENSURE THAT ADEQUATE STABILIZATION STEEL PLATE. EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. PRIOR TO DEMOBILIZING SITE -WIDE IS ACCOMPLISHED. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING BASIC INFORMATION: NOTES: ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. I. THE CYLINDER MUST BE FIRMLY FASTENED TO THE 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 20. FLUSH CLEAN COMPLETE STORM SYSTEM PRIOR TO DEMOBILIZING AND FINAL INSPECTION. TOP OF THE RISER. 9, E=ROSION AND SEDIMENT CONTROLS SHALL BE INSPECTED AT LEAST TWICE WEEKLY, AFTER EACH RAINFALL AND AT LEAST ONCE DAILY DURING PROLONGED RAINFALL. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF 21 USE DUST CONTROL AS NECESSARY DURING CONSTRUCTION. 2. SUPPORT BARS ARE WELDED TO THE TOP OF THE RISER 10. THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 22. ALL SEEDING IS TEMPORARY UNLESS OTHERWISE NOTED BELOW ON THE PLANS, OR BY BOL EDACHED TO TOP OFTRAPS R SER. REFER TO THE ASSOCIATED EROSION & SEDIMENT CONTROL NARRATIVE FOR MORE DETAIL INSTRUCTIONS CONCERNING THIS RISER DIAMETER Now EFFORT. 11. ALL ENTRANCES EXCEPT FOR THE APPROVED CONSTRUCTION ENTRANCE SHALL BE BLOCKED IN SUCH A MANNER AS TO NOT SECTION A -A ISOMETRIC ALLOW ACCESS TO THE SITE. MAINTENANCE NAIR I 11RATIVEa 12. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE AND/OR CONVERT TO A PERMANENT STRUCTURE ANT I- VORTEX DEVICE DESIGN ALL EROSION AND SEDIMENT CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT. 1N GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY AND 13. A MINIMUM WATER TAP OF 1 MUST BE INSTALLED WITH A MINIMUM 1 BALLCOCK SHUTOFF VALVE SUPPLYING A WASH HOSE AFTER EACH SIGNIFICANT RAINFALL. THE FOLLOWING ITEMS WILL BE CHECKED IN PARTICULAR: � Ir 20 IIDETA I L N T 3 WITH A DIAMETER OF 1.5" FOR ADEQUATE CONSTANT PRESSURE. WASH WATER MUST BE CARRIED AWAY FROM THE ENTRANCE PLATE 3.09-1 SOURCE: VA. DSWC SECTION E-005 �1 1NT.T3. TO AN APPROVED SETTLING AREA TO REMOVE SEDIMENT. ALL SEDIMENT SHALL BE PREVENTED FROM ENTERING STORM 1. THE SEDIMENT TRAPS AND BASINS WILL BE CHECKED REGULARLY FOR SEDIMENT CLEANOUT. DRAINS, DITCHES OR WATER COURSES. 14. ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE MAINTAINED AND REPAIRED AS NEEDED UNTIL ALL DISTURBED 2• DRAINAGEWAY IMPROVEMENTS SHALL BE INSPECTED AFTER EACH RAIN EVENT TO DETERMINE IF FURTHER ARMORING IS AREAS HAVE BEEN PERMANENTLY STABILIZED. MAINTENANCE AND REPAIR SHALL BE IN ACCORDANCE WITH THE METHODS NECESSARY. /-TOP OF DAM PLATE. 3.14-2 OUTLINED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK FOR EACH CONTROL MEASURE SPECIFIED. ELEV. 584.00 15. PERMANENT AND/OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO ALL DISTURBED AREAS WITHIN 7 DAYS AFTER 3. THE GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP WHICH WOULD PREVENT DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT, 1T SHALL BE REMOVED AND CLEANED OR REPLACED. FINAL GRADE IS ESTABLISHED ON ANY PORTION OF THE SITE. ANY DISTURBED AREAS WHERE CONSTRUCTION ACTIVITIES DESIGN HIGH WATER (25 -YR. STORM ELEV.) WILL BE HALTED FOR LONGER THAN 30 DAYS SHALL BE STABILIZED WITHIN 7 DAYS OF THE LAST CONSTRUCTION ACTIVITY. 4 SILT FENCE BARRIERS AND DIVERSION DIKES WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION AND ELEV. 582.60 ANTI -VORTEX 16. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. REPAIRED AS NECESSARY. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF DEVICE ALL AREAS DISTURBED BY CONSTRUCTION WILL BE STABILIZED WITH PERMANENT SEEDING IMMEDIATELY FOLLOWING THE WAY TO THE TOP OF THE BARRIER. WET STORAGE MIN. 0.5' � RISER CREST CONCLUSION OF CLEARING OPERATIONS. UNLESS OTHERWISE SPECIFIED, PERMANENT SEEDING WILL BE DONE WITH KENTUCKY 5. THE SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHALL BE ELEV, 581.60 ELEV. 581,60 31 FESCUE AND A NURSE CROP OF ANNUAL RYE INCLUDING LIMING, MULCHING AND FERTILIZING AS REQUIRED ACCORDING TO • � � 30' CMP ( ) FERTILIZED AND RESEEDED AS DETERMINED NECESSARY BY THE COUNTY AGENT. WET STORAGE - RISER 17. E & S STD, AND SPEC. 3.32 OF THE 1992 EROSION AND SEDIMENT CONTROL HANDBOOK. ELEV. 579.70 ......�3" DEWATERING 18. SILT FENCE SHALL BE MAINTAINED UNTIL SITE IS STABILIZED AND/OR THE ESC OFFICER APPROVES REMOVAL. SEDIMENT CLEANOUT ORIFICE ELEV. 19. SURFACE ROUGHENING (E&S STD. & SPEC. 3.29) SHALL BE PROVIDED ON ALL SLOPES GREATER THAN 3:1. ELEV. 578.30 579'70 SEDIMENT BUILD-UP IN CULVERTS AND STORM PIPES SHALL BE CLEANED OUT AND PLACED AT A SUITABLE LOCATION WHEN THE o INVERT ELEV. LE b �1 0 ;; I";;;;;:v;;;,;;;;;;;;,;,; 20. SITE HAS BEEN STABILIZED FROM FURTHER SOIL EROSION. 570.80 TEMPORA ! PORA )�1�T AP F>;y.y:„xr„tA$'{„},,t,}ISV ; nIr„h"r,{.v}, {'r,;, #.?Zn;;•';i1;lt"JZ t .,? ,. Ytl.):'lii:i'l:. 21. CONTRACTOR NTRACTOR SHALL ASSUME ALL LIABILITY AND RESPONSIBILITY FOR ER OSION AND SEDIMENT CONTROL MEASURES. 24" RCP@ IDO DUST CONTROL 3.13 VA E&SC STD.CONTRACTOR SHALL PROVIDEADEQUATE MEANS OF CLEANING MUD FROM TRAND/R THERE ELEV. 574.00 1.02i EXITING THE CONSTRUCTION AREA ONTO PUBLIC OR PRIVATE ROADS. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO 3.39 VA E&SC STD CLEAN ROADS, ALLAY DUST, AND TAKE WHATEVER MEASURES NECESSARY TO INSURE THAT THE ROADS ARE MAINTAINED IN OUTLET PROTECTION STABILIZATION BLANKETS & MATTING 18" CONCRETE a 22. A CLEAN, MUD, AND DUST -FREE CONDITION AT ALL TIMES. x.15 VA E&SC STD. BASE NO LAND DISTURBING ACTIVITIES SHALL COMMENCE PRIOR TO ISSUANCE OF A GRADING PERMIT. E/ 3,36 VA E&SC STD. 'I° �'---� OPSOILINO 60" CE TEMP. STONE CONSTRUCTION CTION ENTRANCE 3.30 VA E&SC STD. DESIGN ELEVATIONS WITHOUT 3.02 VA E&SC STD. PERMANENT SEEDINGEMERGENCY SPILLWAY CONSTRUCTION ROADSTABILIZATION PS 3'32 `VA E&SC STD.(RISER PASSES 25 -YR. EVENT) ��S 3.103 VA E&SC STD. � SEDIMENT BASINRISERTEMPORARY SEEDING FENCE TS SF 3,31 VA E&SC STD. �® SECTION E-079 3.05 VA E&SC STD. MULCHING N.T.S. STORM DRAIN INLET PROTECTION 3.35 VA E&SC S°]C1ID, 3.07 VA E&SC STD. TEMPORARY (DIVERSION DIKE 3.09 VA E&SC STD, SCALE- ASSHOWN ISSUED: 8-7n06 ORAWN BY: AGF REVISIONS: So 1. 10-16-+06, G®./ACSA COMA► l�iT'S 2. 11-22-06, ADD SWM EASEMENT & RET. WALT_ BUFFER 3. 101-02-06 REV. STRMFILT°ER DET All rights reserved. No part of the material protected by this copyright (plans, ideas, designs, sections or details expressed on these plans) may be reproduced, changed or utilized in any form or by any means, electronic or mechanical, including photocopying, scanning, or by any other means of retrieval system without written permission from Terra Partners, LLC, Also, these plans may not be assigned to a third parry without first written authorization of Terra Partners, LLC. O TERRA PARTNERS, LLC M, �