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HomeMy WebLinkAbout20000375 Ver 1_Complete File_20000324State of North Carolina Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Bill Holman, Secretary Kerr T. Stevens, Director 4 0 • IT NC ENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES March 31, 2000 Haywood County DWQ Project # 000375 APPROVAL of 401 Water Quality Certification NC DOT c/o C.R. Styles PO Drawer 250 Bryson City, NC 28713 Dear Sirs: iYou have our approval, in accordance with the attached conditions and those listed below, to impact 10 feet of an unnamed tributary to Dutch Cove Creek in Haywood County for the purpose of road maintenance, as you described in your application received by the Division of Water Quality on March 24, 2000. After reviewing your application, we have decided that this action is covered by General Water Quality Certification Number 3103. This certification allows you to use Nationwide Permit Number 14 when the Corps of Engineers issues it. In addition, you should get any other federal, state or local permits before you go ahead with your project including (but not limited to) Sediment and Erosion Control, Coastal Stormwater, Non-Discharge and Water Supply Water shed regulations. This approval will expire when the accompanying 404 or CAMA permit expires unless otherwise specified in the General Certification. This approval is only valid for the purpose and design that you described in your application. If you change your project, you must notify us and you may be required to send us a new application. If the property is sold, the new owner must be given a copy of this Certification and approval letter and is thereby responsible for complying with all conditions. If total wetland fills for this project (now or in the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h) (6) and (7). For this approval to be valid, you must follow the conditions below and those listed in the attached certification. If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 27611- 7447. This certification and its conditions are final and binding unless you ask for a hearing. This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please telephone John Dorney at 919-733-9646. Sine ly, L T Steve s Attachment V cc: Corps of Engineers Asheville Field Office Asheville DWQ Regional Office "tile Copy Central Files 000375 Division of Water Quality • Non-Discharge Branch 1621 Mail Service Center, Raleigh, NC 27699-1621 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer • 50% recycled/10% post consumer paper http://h2o.enr.state. ic.uslwetlandc.1itm1 A& O ? S?A1j o r ?? ow.ae• STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION JAMES B. HUNT JR. GOVERNOR March 20, 2000 Haywood County SR 1896 000375 Mr. Steve Lund, NCDOT Coordinator U. S. Army Corps of Engineers Regulatory Branch 151 Patton Avenue, Room 143 Asheville, NC 28801-5006 Dear Mr. Lund: n Il V i5 MAR 2 4 20 t E. NORRIS TOLSON SECRETARY PAYMENT RECEIVED The North Carolina Department of Transportation is proposing to grade, drain, base and pave primarily along the existing roadway of SR 1896, Old Cook Road in Haywood County. In order to construct this project in accordance with our current secondary road standards, and due to the extension of one (1) pipe culvert in an unnamed tributary of Dutch Cove Creek (DEM Class C), we are requesting authorization under Section 404 of the Clean Water Act. I am sending a straight-line diagram with our proposed erosion control and construction limits at various sites along this project. In addition, a typical section of the road, drawings for the pipe extension in the unnamed tributary of Dutch Cove Creek, general notes and standards on erosion control measures, and a marked County Map are enclosed. We propose to install the new culvert slightly below the existing stream bed elevation where bedrock is not encountered to minimize impact to Wildlife habitat and allow the existing stream gradient to remain as unchanged as physically possible. The best management practices will be used to minimize and control sedimentation and erosion on this project. The construction foreman will review all erosion control measures daily to ensure sedimentation and erosion controls are being effectively controlled. If the planned devices are not functioning as intended, they will immediately be replaced with better devices. The silt fences and other erosion control devices will be in place prior to pipe construction and will remain in place until the project is stabilized. P.O. Box 250, Bryson City, NC 28713 Phone (828) 488-2131 Mr. Steve Lund Page 2 March 20, 2000 By copy of this letter I am asking Mr. Mark Davis, Habitat Coordinator Western Mountain District, of the NCWRC to comment directly to you concerning the 404 Nationwide permit request. Also by copy of this letter, I am requesting authorization to proceed under Section 401 of the Clear Water Act from Division of Water Quality. In addition, I am asking Mr. Davis and Mr. Ed Ingle, Area Roadside Environmental Engineer (NCDOT), to comment directly to me concerning this permit request. We would like to begin construction as soon as possible. If further information is required, please advise. Your early review and consideration will be appreciated. Your tr ly, C i ??? C. R. tyl , P. E. District ngineer CRS:sd atta. cc: Mr. F. D. Martin, P. E., Division Engineer Mr. E. L. Ingle, Area Roadside Environmental Engineer Mr. Mark Davis, Habitat Coordinator W. Mtn. Dist., NCWRC Mr. John Dorney, Water Quality Certification Unit, DWQ P.O. Box 250, Bryson City, NC 28713 Phone (828) 488-2131 pp037 5 DWQ ID: CORPS ACTION ID: NATIONWIDE PERMIT REQUESTED (PROVIDE NATIONWIDE PERMIT #) L/ PRE-CONSTRUCTION NOTIFICATION APPLICATION FOR NATIONWIDE PERMITS THAT REQUIRE: 1. NOTIFICATION TO THE CORPS OF ENGINEERS 2. APPLICATION FOR SECTION 401 CERTIFICATION 3. COORDINATION WITH THE NC DIVISION OF COASTAL MANAGEMENT SEND THE ORIGINAL AND (1) COPY OF THIS COMPLETED FORM TO THE APPROPRIATE FIELD OFFICE OF THE CORPS OF ENGINEERS (SEE AGENCY ADDRESSES SHEET). SEVEN (7) COPIES MUST BE SENT TO THE NC DIVISION OF WATER QUALITY, ATTN: JOHN DORNEY, 4401 REEDY CREEK ROAD, RALEIGH, NC 27607. PLEASE PRINT. 1. OWNER'S NAME: NC DOT - District Engineer: C R Styles, P.E. 2. MAILING ADDRESS: P.O. Drawer 250 SUBDIVISION NAME: N/A CITY: Bryson City STATE: ZIP CODE: 28713 PROJECT LOCATION ADDRESS, INCLUDING UBDIVISIO AMl (IFT?DIFFE ENT FROM , MAILING ADDRESS ABOVE): S G? La l_4?oo K /CC'C? 3. TELEPHONE NUMBER: (HOME) (WORK) (828) 488-2131 4. IF APPLICABLE: AGENT'S NAME OR RESPONSIBLE CORPORATE OFFICIAL, ADDRESS, PHONE NUMBER: Same as above # 1 5. LOCATION OF WORK (PROVIDE A MAP, PREFERABLY A COPY OF USGS TOPOGRAPHIC MAP OR AERIAL PHOTOGRAPHY WITH SCALE): n L COUNTY: • 0 NEAREST TOWN OR CITY: ( ikxv TO n SPECIFIC LOCATION (INCLUDE ROAD NUMBERS, LANDMARKS, ECT.) J d d ?C 1 C c ? 6. IMPACTED OR NEAREST STREAM/RIVER: h n r DC4 I ° CT r 1l EM o.fS RIVER BASIN: 1'?e r- Ra<jn 7. (a) IS PROJECT LOCATED NEAR WATER CLASSIFIED AS TROUT, TIDAL SALTWATER, (SA), HIGH QUALITY WATERS (HQW), OUTSTANDING RESOURCE WATERS (ORW), WATER SUPPLY (WS-I OR WS-II)? YES ? NOA IF YES, EXPLAIN: (b) IS THE PROJECT LOCATED WITHIN A NORTH CAROLINA DIVISION OF COASTAL MANAGEMENT AREA OF ENVIRONMENTAL CONCERN (AEC)? YES ? NO Lk [c] IF THE PROJECT IS LOCATED WITHIN A COASTAL COUNTY (SEE PAGE 7 FOR LIST OF COASTAL COUNTIES), WHAT IS THE LAND USE PLAN (LUP) DESIGNATION? - (a) HAVE ANY SECTION 404 PERMITS BEEN PREVIOUSLY REQUESTED FOR USE ON THIS PROJECT? YES [3 NOk IF YES, PROVIDE ACTION I.D. NUMBER OF PREVIOUS PERMIT AND ANY ADDITIONAL INFORMATION (INCLUDE PHOTOCOPY OF 401 CERTIFICATION): (b) ARE ADDITIONAL PERMIT REQUESTS EXPECTED FOR THIS PROPERTY IN THE FUTURE? YES E] NOX IF YES, DESCRIBE ANTICIPATED WORK: (a) ESTIMATED TOTAL NUMBERS OF ACRES IN TRACT OF LAND: 2. 16 (b) ESTIMATED ^ TOTAL NUMBER OF ACRES OF WETLANDS LOCATED ON PROJECT SITE: /1,9/0 9-- 10. (a) NUMBER OF ACRES OF WETLANDS IMPACTED BY THE PROPOSED PROJECT BY: FILLING: EXCAVATION: FLOODING: OTHER : DRAINAGE : TOTAL ACRES TO BE IMPACTED: (b) (1) STREAM CHANNEL TO BE IMPACTED BY THE PROPOSED PROJECT (IF RELOCATED, PROVIDE DISTANCE BOTH BEFORE AND AFTER RELOCATION: LENGTH BEFORE: FT AFTER: FT WIDTH BEFORE (based on normal high water contours): FT WIDTH AFTER: FT AVERAGE DEPTH BEFORE: FT AFTER: FT (b) (2) STREAM CHANNEL IMPACTS WILL RESULT FROM: (CHECK ALL THAT APPLY) OPEN CHANNEL RELOCATION: PLACEMENT OF PIPE N CHANNEL: / 01- F CHANNEL EXCAVATION: CONSTRUCTION OF A DAM/FLOODING: OTHER: 11. IF CONSTRUCTION OF A POND IS PROPOSED, WHAT IS THE SIZE OF THE WATERSHED DRAINING TO THE POND? N/A WHAT IS THE EXPECTED POND SURFACE AREA? N/A 12. DESCRIPTION OF PROPOSED WORK INCLUDING DISCUSSION OF TYPE OF MECHANICAL EQUIPMENT TO BE USED? (ATTACH PLANS: 8 ''/:' BY 11" DRAWINGS ONLY): To widen and pave SR if: 16 to meet current NCDOT Standards by use of track hoes, lldozers. dump trucks, back hoes, manual labor, etc. 13. PURPOSE OF PROPOSED WORK: Same as above in # 12 14. STATE REASONS WHY IT IS BELIEVED THAT THIS ACTIVITY MUST BE CARRIED OUT N WETLANDS (INCLUDE ANY MEASURES TAKEN TO MINIMIZE WETLAND IMPACTS) To gai n the needed wi dth to bui 1 d SR i f?q C. to NCDOT Standards. Al l - Channel changes wi 11 be constructed in the dry. Rip-rap will only be used for bank stabilization. Alders, Red Maples, Black Walnuts, Willows, Sycamores DanrAOds etc will be re-established on the banks. All pipe replacements will be placed slightly below the existing streanbed gradient so natural 15. YOU ARE REQUIRED TO CONTACT THE US FISH AND WILDLIFE SERVICE AND/OR NATIONAL MARINE FISHERIES SERVICE REGARDING THE PRESENCE OF ANY FEDERALLY LISTED OR PROPOSED FOR LISTING ENDANGERED OR THREATENED SPECIES OR CRITICAL HABITAT N THE PERMIT AREA THAT MAY BE AFFECTED BY THE PROPOSED PROJECT. DATE CONTACTED: Handled by Corps 16. YOU ARE REQUIRED TO CONTACT THE STATE HISTORIC PRESERVATION OFFICER (SHPO) REGARDING THE PRESENCE OF HISTORIC PROPERTIES N THE PERMIT AREA WHICH MAY BE AFFECTED BY THE PROPOSED PROJECT. DATE CONTACTED: Handled by Corps 17. DOES THE PROJECT INVOLVE AN EXPENDITURE OF PUBLIC FUNDS OT THE USE OF PUBLIC (STATE) LAND? YESM NO ? (IF NO, GO TO 18) AL? (a) IF YES, DOES THE PROJECT REQUIRE PREPARATION OF AN ENVIRONMENTAL DOCUMENT PURSUANT TO THE REQUIREMENTS OF THE NORTH CAROLINA ENVIRONMENTAL POLICY ACT? YES [] NO R, (b) IF YES, HAS THE DOCUMENT BEEN REVIEWED THROUGH THE NORTH CAROLINA DEPARTMENT OF ADMINISTRATION STATE CLEARINGHOUSE YES ? NO El N/A IF ANSWER 17b IS YES, THEN SUBMIT APPROPRIATE DOCUMENTATION FROM THE STATE CLEARINGHOUSE WITH THE NORTH CAROLINA ENVIRONMENTAL POLICY ACT. QUESTIONS REGARDING THE STATE CLEARINGHOUSE REVIEW PROCESS SHOULD BE DIRECTED TO MS. CHRYS BAGGETT, DIRECTOR STATE CLEARINGHOUSE, NORTH CAROLINA DEPARTMENT OF ADMINISTRATION, 116 WEST JONES STREET, RALEIGH, NORTH CAROLINA 27603-8003, TELEPHONE (919) 733-6369. 18. THE FOLLOWING ITEMS SHOULD BE INCLUDED WITH THIS APPLICATION IF PROPOSED ACTIVITY INVOLVES THE DISCHARGE OF EXCAVATED OF FILL MATERIAL INTO WETLANDS: (a) WETLAND DELINEATION MAP SHOWING ALL WETLANDS, STREAMS, LAKES, AND PONDS ON THE PROPERTY (FOR NATIONWIDE PERMIT NUMBERS 14, 18, 21, 26, 29, AND 38). ALL STREAM (INTERMITTENT AND PERMANENT) ON THE PROPERTY MUST BE SHOWN ON THE MAP. MAP SCALES SHOULD BE 1 INCH EQUALS 50 FEET OF 1 INCH EQUALS 100 FEET OF THEIR EQUIVALENT. (b) IF AVAILABLE, REPRESENTATIVE PHOTOGRAPH OF WETLANDS TO BE IMPACTED BY PRODUCT. [c] IF DELINEATION WAS PERFORMED BY A CONSULTANT, INCLUDE ALL DATA SHEETS RELEVANT TO THE PLACEMENT OF THE DELINEATION LINE. (d) ATTACH A COPY OF THE STORMWATER MANAGEMENT PLAN IF REQUIRED. (e) WHAT IS LAND USE OF SURROUNDING PROPERTY? Rural wDod1and, RPCidpntial (o IF APPLICABLE, WHAT IS PROPOSED METHOD OF SEWAGE DISPOSAL? N/A (g) SIGNED AND DATED AGENT AUTHORIZATION LETTER, IF APPLICABLE. NOTE: WETLANDS OR WATERS OF THE US MAY NOT BE IMPACTED PRIOR TO: 1. ISSUANCE OF A SECTION 404 CORPS OF ENGINEERS PERMIT, 2. EITHER THE ISSUANCE OR WAIVER OF A 401 DIVISION OF WATER QUALITY CERTIFICATION, AND 3. (IN THE TWENTY COASTAL COUNTIES ONLY), A LETTER FROM THE NORTH CAROLINA DIVISION OF COASTAL MANAGEMENT STATING THE PROPOSED ACTIVITY IS CONSISTENT WITH THE NORTH CAROLINA COASTAL MANAGEMENT P O RAM. 3fZo%o OWNER'S/AGES T' SIGNATURE ATE (AGENT'S SIGNATURE VALID ONLY IF AUTHORIZATION LETTER FROM Kr: 1 / V C 1 Q // / 15p) \.\ t 1617 9 16? I \ / • l? ? u _ 394 cook-' I\ ?• \ c? / ??GG?? 1 J _- ?- ` I JSI / 1 ?7 1645. BIG BUTT PW*- G?M1 15oV9, / 150' ?, q M T N. 609 \ • i 0 !617 `/ n / \ \ 1n6 I 1624 / + 2 4• •-/" 1619q 1658 11 NEWFOUND GAP •6 ° ` 9 Ifi1B '? F. 60) \ U 1608 16\6 1606 ISOJ 1509 \1,. '_ 1608 1004 1510 19_09 /. 16_'Y jZ !?6 1, 5 1615 1614 1, - 1 1 Crs I 1640?? 1 1611 ?91t GRASSY TOP 1 II 15x2 / \ 6 / I -d-IC. 1•6 ?0 ' ! CHAMBERS 1545 T- i / ,/. \ '., 1600 GHEE \ \1? ,/ S •I ; 9 r \ E ??. /Z. tar 2) / ?-, Q- - j 19AV 0. SMATHERS MTN. /9( 1 1 h7 - / \ _ ? Q ? ?, i Z \ • I ? ^ \=. \ o ? -r DOUBLE TOP MrN. ? cAjqTom /? et __ 515 \ ",??? (?? `? ? \ ? ?>'?? > \ •C ?L .1 1 ?t as w' IAN ` \ ! ! UTAH MTN. CLYDE b l yb ? I855? jC,11'UI 1 1GGl.u f- L 97 O uV i reo scz:7.. 19 )L*k* 19_H 181 I ! TWELVE O'CLOCK TOP 216 ROCK KNOB ! / •\ SUGAR TOP •\ ?DMMad ELEV. 4,970 / ??? I t-z JJJ w1w? /' nooalw I \/ .1 All aa \ d Maaao. 9i 2)6 9 ??_ SEN TELL - Gro- V .?. EAGLENE$r \ f 1997 WroYNESVILLE .6 4,6 W 1 - •..? ^v /•? ?,o l v6 / I warrlESwLiE /N0. I ^ f III B; P. 1103 )IIp4 -? 1899 ESE/. L n \ / \ fit 276 \ ! ` MAUtwooof _ ?ti I/ /o IQs , Pof 1.111 !d I 1101 ? 999 `J 11Q<i ° \ 9 M ??\?4l L \??f\`?? \ WOLF PEN Mir, / c- R ER )6Y _ t,??t \ I-`? _ ~\? I ! ?. .• sego _ NATIONAL COLD MOUNTAIN L ? FRYING V. 6,070 PAN V 11 ELEV. 5.50 -5J \.`r /yam/" 114; ? ?' d! 1 w ?1Qyl 114+?Iwo1 / 45- /' n4) <V Sunburst qyr. l \ ?l 4A I i'k JeT `\ - I '9 6 i291 .IC15f?NE BALD BALSA - Ej S,11.1 GAP \ - - - FOREST '-- t:_.i. ©i / _I 1 GREEN RASST KNOB -. STEESTACHEE STAIRS MTN. KNOB 5.865 COLD SP '.NG Jl H LAUREL PATCH r \ \ / 1GH TOP / • T SHINR+G ROCK 1 - RE57 ! ELFV.6.040 - ] F 4a S A CANEr FORK eALDI oe ?' J M ELE V. 6,067 1 1 R1C.1 AND BALSAM P1CfGW OIU BA1B MIN. '?• Rf',. AREA NATIONAL oNExe LD MANAGEMENT SENIAR Q\ ELF". MrN. 5.•I:U r:. BLACK BALSAM KNOB a WILDLIFE s .a I SAM KNOB C, ' I SHERWOOD ELF+. 6030 a R a o 4f O SR VFRMNF HA10 U FOREST fi;1? A& d ? r? CC>O /C !? c• UNITED STATES TENNESSEE VALLEY AUTHORITY MAPPING SERVICES BRANCH 134 135 (CANTOvr183-SEJ 336 131 1 ? .r ,? -.. ?\? f'. \' • !? /; llll?SS` , ? !•! `: i 1 ,r .../' f r ,rr' `?'/ ? _ _ _ ? t 1 \ y y , ?? '-?? ' + wly ? 4t y,?.• `:- ( s l 1+•`?•`?.`% Y?;_?IJ/ ....? :...f 1 ? i S 1J1. __.1 .??) ?!1 ? ``• ? ( ? ? ?"-?~ \, .1,\\? tw t_? ? _ .` ` \ `, r, ? '. % :+ ci??. a ?i`!-"°:? ~t '1 • ! 1; 1? '3 r -? ? .. w \ - ?. t `? 7 / \? 'tai \ t 1 r q ?? L`? \ \ _ _• \ .?, f ?, \ ti +, i i }. ^l + ?'? 1 'tom i 1 ',r . ?w wd0?i ? `? ???? t r} f'?(? t ?+,?`t.? r c''t .`_.??f??._. ,•.?? ?l ? ?...1 ;? f ! ?- At `/ .r n , r?i ! ? ?` //}/ ,' ' ? + ? ? i,.4 t k? ? \ C{^j3. /? ..F?' ?' i y, `,:._= .. "./ `+e ? .? rf •4\J i + r ? 1 (?. + ,mow, ^ ? ? f /? ! i ,+ , !• ? t,. -- ? ?.f !? !Y? `r` ui f,wi'?'F- ? ,..?1!".•? ( '\?" ;`', 1; • e`ras' ; `'? ??"`a • j . 1? ?r?,,' . ?( t??. l4? ! ,? ? ? ?? `/ ,?•? --,_? ;. l o(/ ?`•? •?t _ t , F' t , 'eJA . , ?? - -? + L t r ?...., v.?9 ' t s f O^^rU-' .?-r " ?' 'w\v "r ' '-?.f i !r( ?'?\R? ` \\\\\ ti ` ..+ +•`?r 1„? !f?//l h?\/f r M'??! Po r ?? ! V A \? r J J i t/ ! ?I •` ?' ? ?\? i'??' ?l ,? 'I 1 ? .? _ \!-'`t ,? ? !! j `a. / ? I ? ? t? :i?t -,? ?-• ' ""\~f'rj'•f / " t 1 `? `"'? \, ? ' IY_ fr ?. 1 +1 cn l / ?. \ f j'o e 7? lit f??9?li/vo Co. ROAD NAME S.R. W.0 . FROM _S. ,e. /Bhp 2?D 9D To ADD ITION IMPROVEMENT ? TO BE PAVED P. POLES TO BE MOVED T. POLES TO BE MOVED R /W WIDTH SCALE I" =50.7»r? lv -8-g? ?-- 5' g' 9' S' EROSION CONTROL DETAILS AND. SPECITIC.ATIONS Sid- 245.03 Temporary Silt Ditch . ..-._•-.--- 7S D 245.05 Temporary Diversion ............................. 'r D 893.01 Te.mporary Slit Fence f-- ... . ...................... 890.05 Temporary'-°51ope' Drain with Earth Berm .......... S!lt Basin Type A •--••_•_ ' -445,02 Silt Basin Type B 892.04 Temporary Rock Silt Check T e-A 895.10 Temporary Rock Silt Check Type-B -•_-••.•_- 892.01 Temporary Rock Sediment Dam Type-A --.-- 892.02 Temporary Rock pediment Dam Type-B :__ 897.01 Rock Pipe Inlet Protection T e-A 6 IN 897.02 Rock Pipe Inlet Protection T e-B ___ U 894.01 Rock Silt Screen ............................................. 245.04 Stilling Basin Rock Inlet Protection: !u! .. 896.01 Type A .......................... ..... A OR _.A 896.02 Type B . ............................... B I -• OR -- B 896.03 Type C ..............................• CC •• OR -- C)) 12 March, 1992 •C 'r J' .J.Jf .S• I Cs iY /' d /2 ?? /G i •? i'/ J i •'4 . ,E VE•?Y S? D.? i>) E' l/E,tiT /?.V-v G) L E/?/V6"1? ?J U T CU/Y? ?? /S:9L.? f// \7, ARr-A ?s.z3 . Is/ON ,2 c SRO Y z, . s ONLY, S"/C. 7' ; i?l.t?'/r(- ? LE:,'rr// aF v?s?'a•eBEV /1REA._ 3 • (S.13, ?_ 1) 4 ENG7 Y71i9R/ Lot't ,Ge e N6 e00111 Rol O \ ctiA?e/es F. ?.?dd? O 70 eA?N?., .vim ?B P I tr -st ?c 5? 1 I Ez•sf ??C 2 ? BO I z, `T,eoy ,L. 04RRo11 496`l- ?cr?e.? Co? Rd. ?I 1? ,/) t10 lo./oo ?',qy?o.+r NC O Rab y L..b e•l//iN j?2t.3?Xli • o O -5 . O tSS>G v85 ReducE Q/I?., 7o /F? OG? rOr c`.i?llr?trCG ?Or-.f?Ard QE I 1 IS?+P Cx.s /.vG I f II ,A b ?v /U ? 00 11 lB MP I a P,eo?ED a1 ? T ?I 1 I 5?0o I sfoo (i) S.Gt7Se> ?•?CG p? O u ? 1 77 /S too /51100 Exs iNG 0 ? .30 I E?- v ?I v - O I jl Etc _ ?aJ I II /D fd0` /U X00 o 1'7,"- 70> /8 v25 Reduce P/tw io A7 'e cl OFD ? ??;2 FRA?.t= ,20 too t eo I 45' i ?I /7 / 00 O f I /.?tOD I *7A,V4 i2. SNyde2 2l8 Abp w I G'AN??,y •t?G' 0 Z? / `! Y' UD Q !5/OD z? C. o. P, O I z0?9o_ ?/? d DD I i '70190 I 20 ? 00 E: o, P. (0 . . ... , TEMP STONE. .DITCH CHECK ROCK SILT CHECK .IMAM SILT BASIN - B TEMP SLOPE DRAIN TEMP SILT DITCH EARTH EMBANKMENT SILT FENCE FIBERGLASS ROVING RI P RAP - TSII -.?-- EGR --- J TEMPORARY SILT FENCE: A temporary silt fence is commonly used at the toe of a fill section to prevent off- site sedimentation. It is made of permeable filter fabric buried at the bottom, stretched and supported by steel posts. The silt fence reduces the water flow-while retaining the sediment. They may also be used to divert water flow to protected outlets. Silt fences need to be checked after each significant rainfall to ensure there effectiveness. They must be maintained on a regular basis. Silt fences shall not be installed across streams, ditches, or waterways. AREAS OF USE: At toe of fill sections where sediment runoff can be stored and contained inside the project limits. DESIGN CRITERIA: Material With Wire Without Wire Fabric Type 3 Class A Type 3 Class B Steel posts length 5 ft 5 ft. Post spacing 10 ft. 6 ft. maximum 17 March, 1992 l;CO ^ li l l- Z IT, _? I U U z ?; I I w I I ?F u ^:r.- - i I I? W Z ?._ ---o- WOO LL -z _ -------?---- ELL- 2 E, z - 0 --.? C4 C J a{ _ x- _ , r^ C4 CL2 W G- W ?i i ??yy O Z JC W Ct U t -- I ^O/'? ¢ A W u © r_ 1..1_ C ?... -O =V) W Q C w L O W ? Z ?- F <V C co .i ...7 co - - 4. z Z ? Y: L W ZC < 0 W G- ? "?? ZWW Q => CM Z Z .4 6 < ? < F .7 4• W ,..tttt O E..e ml W FCE.(nWF Q. V) 0C C0W © L W ry} p_CiZ0 r- C.3 O¢ W G- GZW !c. pi i Z C _ W !/7 Z. O? 41?,ZF: E- WFW O%¢I O Gm FCtWIFiUV p. W Z O Z4.G 4.<.. WZ .. INI ! E ¢.7 Z -OCn 04.0 W < _ > N ..7 ; uj. , a ¢ cr Fr z• ¢ 18 March,1992 SILT BASIN TYPE-B: A silt basin type-B is a temporary basin built to collect sediment flowing through a drainage way. The silt basin is built at the base of the ditch with its length being at least 2 times the width of the basin. The type-B silt basin is generally built in conjunction with temporary rock silt checks and other devices that control or slow down water flow. This device must be monitored closely and cleaned out on a regular basis until grass is established along the ditch line and sedimentation is no longer a problem. AREAS OF USE: • In conjunction with temporary rock silt checks and other devices used in drainage ditches. DESIGN CRITERIA: • Width - variable • Length - 2 times width • Depth - 2 ft. minimum storage - 1800 cubic feet/acre (equals L x W x D) 23 March, 1992 DIN M I In iN I a J a 24 VIII ? 111111 - u = = a itll ill I W = = m - It;lli - r•I? III ii - I!III! Hill Illy' ill i l !Iii. s _ - s Illli ? ,i,,l IIII Y - - W - =?iilll!= !1111! ,III: ? = s II $ - C ?I 3 =_ W I m illill II; - O I.- w J w I? Z. 2 O?• f; i N I L ? I I 0 1 March,1992 m w CL zJ z _Q m vz Z'J U) z •C C? Q 1 H U•) O IT -I I 70 mm ROCK PIPE INLET PROTECTION TYPE-A: Iao a a -aZa- A rock pipe inlet protection type-A is a horseshoe shaped structure with a built-in sediment storage area around the outside perimeter of the structure. The type-A rock pipe inlet protection shall be used at pipe inlets no larger than 36 inches in diameter where it is receiving flow from several directions. The type-A rock pipe inlet protection utilizes class-B stone lined with #5 or #57 stone to protect drainage pipe structures by trapping sediment before it enters. They have a sediment storage pit which is designed by the same procedures as a silt basin. AREAS OF USE: • At inlets to pipes no larger than 36 inches in diameter where it receives flow from several directions. • In areas where it can be cleaned and maintained on a regular basis. DESIGN CRITERIA: • Structural stone - class-B stone • Sediment control stone - #5 or #57 stone • Sediment storage area - 1800 cubic ft./acre • Dam height - 3 ft. minimum 33 March, 1992 Z.© z D f'Cc ° C f.? J x OJ Q Q f r W I ¢ a w t a 3 gat °' t CL t cD ~ W (r' > C= Z '?i O ?, ' 7;'" ??1??GvL o U LLJ ")'??;'' j 1^'?'• 1J_p- '??+ J Fes' 'C t\: `ti•I. 'Y" ,?_•?' sly ?a 'f ,`?/_'? '? A 1r'Sy ??yft U U.. Q? his`:: ?,i -'?. _ _ yY ', j 43:.? to ?--t Lij Z O to L _ r o r u Y -?- ` U r Q ?? _ o w W W F y w w (o .7 z A z F O O p G E CO z O t- a 0 Z i ?- N IV V) G F 4. O F cL W - G7 w W aaU°mam a O o W O w© a, F V w o w ° O Q F z Ca. LL F O Z p .7 U 0 (1) F- :z MOFGF- ONO aOZZ<=OW.? o ?. (n 0 co co V) C4 0 W p CL W '3 z W E. z W W w c 0! Fcn W I-- C) W W z FaOZpu•1 C7 N f0 u V) p a ai o co a W 3 z l ?..7.]C .4 C4 a W pip. CG W ?° W E U- F F W.4Z UE" ww - It!f' N p _ O _ W O W T O O O = ? O L" O U F .-.. I W J?io 1r z © m u F U co f!1 W 4- U Q O F Z 34 March,1992 ROCK SILT SCREEN: A rock silt screen is a low-level dam structure to be used in streams below culvert sites. Rock silt screens shall be used to trap sediment transported by running water and shall be placed in the stream below the construction site within the right-of- way or easement boundary. The rock silt screen utilizes class B stone lined with #5 or #57 stone to produce a ripple-effect in the stream to settle the larger sediment particles transported in the stream from the construction site. The trapped sediment shall be cleaned out before the device is removed from the stream. AREAS OF USE: In live streams below construction sites where construction occurs in or adjacent to the stream. In live streams below a culvert construction site. Where it can be cleaned before it is removed from stream. DESIGN CRITERIA: • Structural stone - class B stone • Sediment control stone - # 5 or # 57 stone • Dam height - 1.5 ft. minimum and 3 ft. maximum ( shall not be higher than 1 ft. above normal flow of stream) 37 March, 1992 .y r m 4 0 l g W o CL O N ?- C_ 1 a 0 O E Z .] W CO ..7 -'C Z CzF 6 °E-OC.OZ o O:z=)Zj °E,,OW fnZZF N Fi Cz WC) U0 V) 6 -.3 Z?G° OCCc] Za]: C _C O O O m O C W C C ¢ vFiCC.7 Cz CL C Z0 <Z ` C-0? ?pFO 0?_.OZW W O Uocn OZ C C+. •J C. M Cil F Z C F Z CO U p '- Cn i FW V W Fp©W WZFCCj ?C4 C4E -3 NCCO--3Z VF<-3 F F < < C-Z,z¢E G FO(nCZO CZOZO ,fn 0000 .C..C Z ©UC7UFU 7mu.C.u N -° 3 W Z o c li X c t = I M W ( I o H Z O Z I ?. = i- - ^? jJJ / c c ~ w In (D i `?.? N ` N L? 1 C.7 u U 0- R C N J O W Z W N 0 'l. z w Li U 00 J Zr V r, O O° ? z-7N 07 I Q V , ip L O ? I 0 w E Z , -.T- O' h 38 March,1992 1 IZ ?v/ Coo/? ??• srSz, 3,-?a / S•/G VQ6 Pr?p?Std ? t? S `S?? 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