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HomeMy WebLinkAbout19960477 Ver 1_Complete File_19960516State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director A MI.KMA, [D EHNFI May 23, 1996 Jackson County DEM Project # 960477 APPROVAL of 401 Water Quality Certification Mr. C. R. Styles N. C. Dept. of Transportation P.O. Box 250 Bryson City, NC 28713 Dear Mr. Styles: You have our approval to place fill material in 0.02 acres of wetlands or waters for the purpose of improving SR 1154, as you described in your application dated 6 May 1996. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Number 3026. This certification allows you to use Nationwide Permit Number 3 when it is issued by the Corps of Engineers. 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. For this approval to be valid, you must follow the conditions listed in the attached certification. In addition, you should get any other federal, state or local permits before you go ahead with your project. 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 Environmental Management under Section 401 of the Clean Water Act. If you have any questions, please telephone John Dorney at 919-733- 1786. Attachment cc: Wilmington District Corps of Engineers Corps of Engineers Asheville Field Office Asheville DEM Regional Office Mr. John Dorney Central Files Sincerely, LHoward, r. P E. 960477.1tr Environmental Sciences Branch, 4401 Reedy Greek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959 An Equal Opportunity Affirmative Action Employer • 500/* recycled/10% post consumer paper 1%0 is M.n 9 6 0 4 7 7 STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION JAMES B. HUNT JR. GOVERNOR DIVISION OF HIGHWAYS GARLAND B. GARRETT JR. SECRETARY Jackson County SR 1154 Mr. Bob Johnson 215 Army Corps of Engineer Reg. Field Office Room 75, Grove Park Ave. Asheville, NC 28801-2714 Dear Mr. Johnson, Bryson City, NC 28713 May 6, 1996 .401 ISSUED The North Carolina Department of Transportation is proposing to grade, drain, base, and pave primary along the existing roadway of SR 1154, Lloyd Hooper Road, in Jackson County. In order to construct this project in accordance with our current secondary road standards, and due to rechannelization of the unnamed tributary of Thorpe Lake (DEM Class WS III & B) and replacement of three (3) pipe culverts, we are requesting authorization under Section 404 of the Clean Water Act. I am sending a straight line diagram with our proposed erosion control construction limits at various sites along the project. In addition, a typical section of the road, cross sections, drawings for the pipe replacements and the channel change of the unnamed tributary of Thorpe Lake, general notes and standards on erosion control measures, and a marked county map are enclosed. We propose to install the new culverts slightly below the existing streambed elevation where bedrock is not encountered to minimize impact to wildlife habitat and allow the existing gradients 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 are being effectively controlled. If the planned devices are not functioning as intended, they will immediately be replaced with better devices. The rock silt screens and other erosion control devices will be in place prior to pipe construction and will remain in place until the project is stabilized. By copy of this letter I am asking Mr. David Yow, North Carolina Resources Commission, District Fisheries Biologist to comment directly to you concerning the 404 Nationwide permit request. L4 I = %k Mr. Bob Johnson Page 2 May 6, 1996 Also by copy of this letter, I am requesting authorization to proceed under Section 401 of the Clean Water Act from Division of Environmental Management. In addition, I am asking Mr. Yow and Mr. Ed Ingle, Area Roadside Environmental Engineer (NC DOT)and Mr. Richard Phillips (DEHNR), 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. Yours truly, C. R. S e , P. E. cc: Mr. Richard Phillips, P. E., Regional Engineer DEHNR Mr. F. D. Martin, P. E., Division Engineer Mr. E. L. Ingle, Area Roadside Environmental Engineer Mr. Eric Galamb, Water Quality Certification Unit, DEM Mr. David Yow, District Fisheries Biologist, NCWRC A %A DEM ID: ACTION ID: Nationwide Permit Requested (Provide Nationwide Permit #): 03 JOINT FORM FOR Nationwide permits that required notification to the Corps of Engineers Nationwide permits that require application for Section 401 certification WILMINGTON DISTRICT ENGINEER CORPS OF ENGINEERS DEPARTMENT OF THE ARMY P. O. Box 1890 Wilmington, NC 28402-1890 ATTN.: CESAW-CO-E Telephone (919) 252-4511 WATER QUALITY PLANNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENTAL,HEALTH, AND NATURAL RESOURCES P.O. Box 29535 Raleigh, NC 27626-0535 ATTN: Mr. John Dorney Telephone (919) 733-5083 ONE (1) COPY OF THIS COMPLETED APPLICATION SHOULD BE SENT TO THE CORPS OF ENGINEERS SEVEN (7) COPIES SHOULD BE SENT TO THE NC DIVISION OF ENVIRONMENTAL MANAGEMENT. PLEASE PRINT. 1. Owners Name: North Carolina Department of Transportation 2. Owners Address: P. O. Box 250, Bryson City. NC 28713 3. Owners Phone Number (Home): (Work): (704) 488-2131 4. If Applicable: Agent's name or responsible corporate official, address, phone number: C. R. Styles 5. Location of work (MUST ATTACH MAP). County: Jackson Nearest Town or City: Glenville Specific Location (Include road numbers, landmarks, etc.): SR 1154 - Lloyd Hooper Road 6. Name of Closest Stream/River: Unnamed Tribitary of Thorpe Lake (Tuckasegee River) 7. River Basin: Little Tennessee River 8. Is this project located in watershed classified as Trout, SA HQW, ORW, WSI, or WS II? YES [ ] NO [ X ] 9. Have any Section 404 permits been previously requested for use on this property? YES [ ] NO [ X ] If yes, explain. 10. Estimated total number of acres of waters of the U. S., including wetlands, located on project site: 11. Number of acres of waters of the U. S., including wetlands, impacted by the proposed project: Filled: .02 Ac Drained: Flooded: Excavated: Total Impacted: .02 Ac so w 12. Description of proposed work (Attach PLANS- 8 1/2" X 11" drawings only): To widen and pave SR 1154 to meet current NC DOT Standards. 13. Purpose of proposed work: Same 14. State reasons why the applicant believes that this activity must be carried out in wetlands. Also, note measures taken to minimize wetland impacts. See Attachments 15. You are required to contact the U. S. Fish and Wildlife Service (USFWS) and/or National Marine Fisheries Service (NMFS) regarding the presence or any Federally listed or proposed for listing endangered or threatened species or critical habitat in the permit area that may be affected by the proposed project. Have you done so? YES [ X 1 NO [ ] RESPONSES FROM THE USFWS AND/OR NMFS SHOULD BE FORWARDED TO CORPS With Application 16. You are required to contact the State Historic Preservation Officer (SHPO) regarding the presence of historic properties in the permit area which may be affected by the proposed project? Have you done so? YES [ ] NO [X ] RESPONSES FROM THE SHOP SHOULD BE FORWARDED TO CORPS. With Application 17. Additional information required by DEM: A. Wetland delineation map showing all wetlands, streams, and lakes on the property. B. If available, representative photograph of wetlands to be impacted by project. C. If delineation was performed by a consultant, include all data sheets relevant to the placement of the delineation line. D. If a stormwater management plan is required for this project, attach copy. E. What is land use of surrounding property? Rural Woodland.- Residential F. If applicable, what is proposed method of sewage disposal? g Owner's Signa a Date a ?-" RICH MM y\b IZ?£2 Mo1?Gaek U HEV 5,500 ? .. 1711 IV 1747 P Ober 41ee 4 a y Iti Cowarts 'b Crer11 N A T 1 N A L a y 1736 .3 1771 1780 0? ?i; .30 0 6 ? 1733 stn tlnz o .1 1722 . 1742 •a Ck a,? 1756 5.2 i 0 East Loport 1743 • 1747 1754 OakRidg C / MORNEYNEAD ; ,.. a• y b '? 501 D 1748 FAF RIG, ? n 2 J d F,ls _ 1737 t i ! 11fli - JI to MTML 1138 Sob Crook 1171 `4 .4 1740 1732 261 11 a ti a, el 1133 FAS J 1730 0 t?4 ' I1 281 Tuckasegee - 6 •? < ` CEDAR CUFF `t eedwell -- 281 Cedar Cliff Ch MTK C• d F .. 7134 •e U J r6. O 9 - ' 1731 1139 1758 Y B 119 1133 1136 SCR t V ?? yN R c CEDAR CU fS I '.? LAK ?? cei FR Geek ii \ ELEV. 3,427 CEDAR CLIFF a, 1• ?\ 4. \\\?{??11C141( `° -T F° LAKE Tr ?•rr.?x 1 BEAR CREEK 43] e, t{? 132 F O R E 5 T OB CHERRY KNOB BELL CONEY MTN. I ELEV. 4,292 y •a y' ELEV. 4,400 t I ?\ a y? BIG KNOB ELEV. 4.600 U Mmile 0 J <:: u o 1129 36 1180 1,8 107 1130 Double Sprklg TUCKASEGEE Rl Ch. .:y FALLS t' ? ,I IND stn 1,1 9 26 1y - I 1173 ?60 t tea 1124 ,?. &r/. . 3,ELEV. 492 0 t1i I ? ? /./ 41120 V? 1143 Q 7 it 114 63 /.0 ?J SP Q 1157 149 11,15 ^ 1114 1.9 F.IP reek.ltle M ab1oM 1152 Yellow Mla. .5 .? 1145 144 C6. C ?o (j w 19 TUCK CREEK LACK ROCK MTN GAP ? ?c ? l ley Z 107 . ,6 yyz ert' ? 4 J.J1 2.8 _ .Q U; S 7.0 •v OW MM .1. O?-?,?4ELEV. 5,43 ? ?, Q 1 ttal .1 NorTQOa .I ?/ ??11 e 1E ? 4 :( 111 y Q? 1 J ?/ \ 2.6 1 Q? 64 DEVILS p O COURTHOUSE aj TO HIGHLANDS . C GAPBE OCi H (C W O HITESIDE MTN. ?, SSepS? '., ELEV. 4,930 KEY TO COUNTY ROAD NUMBERS Aso NUMBERS 1001 1002 - \ \ - HIGHLANDS C POP. 653 rMACON CO. 6531 JACKSON CO. 0 J TURKEY ° y KNOBr'' a P ea c 4? 600 ? / ? ? I ? . u /?C S ? Y ? 1 I ?I BIACKROCK MM;,;;-2' EIEV. 4,500 r 49 1121 p ?'Y{ _` ? . LL' OB Cr. i EUEV LAUREL KN It ELEV. 4,500 M F. ° LAKE FAIR Fi? Mile 0 ?- 9? '? r,r -, i•2r s FAY ELEV. 3.140 TORE IvER L?? - ?Dq4 PTO CHIAWEY TOP MTN. ' ; •. ELEV. 4.625 >rrr /J ??? ? , 1? I ? 1103 ` ? yp .b" ..• ? A 1106 tB X Mile "os U n 'L I/• - Y ? O ? , 1 To, 1D c 4104 E. w Y TERRAPIN MM !2 E. 9 Y HEV. 4,510 F9 / U V ST 107 1 p 1 o ? ° ?? l • O ?{° • ll79?1 •.Y . - A ..::bY" g11wn1 Rack G `...:,; 0 :A COUNTY ?b? \ ( ? I' 4AME J w 1 I IMPROVEMENT TO GE PAVED P POLES TO 8E MOVED T. POLES TO RE MOVE D . • _' W W! DTH CALE ? 1-. =50 5 R. , • EROSION CONTROL DETAILS AND. SPECIFICATIONS Std. B=hnl 245.03 Temporary Silt Ditch 245.05 Temporary Diversion 893.01 Temporary Silt Fence ...................... 890.05 Temporary Slope Drain with Earth Berm .......... Silt Basin Type A 245.02 Silt Basin Type B ........................................... 892.04 Temporary Rock Silt Check Type -A 895.10 Temporary Rock Silt Check Type-B ,_ 892.01 Temporary- Rock Sediment Dam Type-A 892.02 """""" Temporary Rock Sediment Dam 'Type-B ;„ 897.01 Rock Pipe Inlet Protection Type=A ........... 897.02 Rock. Pipe Inlet Protection Type-B ............ • 894.01 Rock Silt Screen ............................................. 245.04 Stilling Basin Rock Inlet Protection: 896.01 Type A ................................ A •- OR •- A 896.02 Type B 6 OR " g ............................... . 896.03 Type C ' . OR C 12 March, 1992 4 Railroad . .:........................ . Control of Access Line................ a ? Slopc St11ce Line :? ....:............... ----'"'r???.....a---?'. ,. Bridge• '' - Culvert :':'.':.•:.:.........:............ Woods .........'.•.•.....•.....-.....•... C>•t•l.?•1?(.)•t•() or -?'?--•••._. Telephone oc:1'elc?ru?li 1'Ible ......... t -m-s•a -a- 1 ?t?itot' •'Q' t Tower Pole and Line.....::.......... , , . ----• .:''::-..: .......:..........., i:xas-v d 1 11titto1' b t Power Pole Easemcnt Line..:..:...•: 0 .... • a : • • : • . Guard Rail - T , ....... .................... S a•nitary: Seti,'er•Ltne.......... , ...... , -•+-:, --?--SS -- Water Line..',', •' ' =--=? ?-- Gas Line .'.. ...y.:..•...? .......:...:.' GAS • t'lIU!'G51':ll fSXtS•t•iNG Chain Lhil.: Fence- .................... - --+-?- --?-C1- Woven Wire Fence" .. - --a-o- Recicneracion... ....:......... .:...•... •,?. Rcforestatioti :.......•............ Tenil)orzirv Silt Ditch : ............... •t:? d--- TSD ..........:.... °-f•};--------; s l- :--d l l-' Temporary Silt Fence Tempo rlry.Slope ?Drititi• . Brush L':iri.ij,t. •' •:...:,; • ' -? Silt Checl< Dam I%yl)e A•.•; : . . . . . .....:. n Silt Checl: Dam'I%ype.B ..'............ . Silt 3asin Z?'pe A ...:.:..?.?.:•.......:..' Silt Basin T),I)e B ..:.....•.?..:•......... Rocl< Silt Check Dam ...... • ..... • .?? Temp, Stone Ditch Check o, .... •. , ,? , J?It?Ilitj t.3cf?1i? t . nt n fl ? n •t 3 • • ? ? . t• . ? • GUU G//l?/G' /=E'KE' j'• ?.E/Z /??.??E'? ' c?,yE'Gk ?v EV?,ey S'T D•f /y) E'vsx r ?.v-v G'LE?iv6.U t?!/T LUh' ?? Hr9L/? f'//LL ,VO r 7 scrl E' J-11.7 ' - / (5- f3.7) L?^?Gr fi oi= s?is? ?ie8r? AREA .? /1. ; ' .T.y S: i?/- ?' /. S yc-.r / cf .vlsr??.c^/3Ev A?fEA 200 L'ROSION ONLY 211- • S"/ 1.7' ??i /l '! ll? -- r (S.. 13, ?_ 1) (S. B. 2 ; [.dwe,7v1 v,.c v?r?•aeeED /AREA Sao' G E?vG?:U oi' ??/sracB?D AREA ybo? i r V,',zG'? ??o?2?.s jZ%. (olo. Bo1! zGo 0 0 d'tOO S f 00 • f I I f o Jol+? ??qCK ,?u/L •? O o l l o .?.oa o.? o k s o ?otov ? O i ?So ?3?? ,vTo.? .B EACH 41,9. 33 ii6o Io ,? o0 Y W 1 1 . t ? S t oo I ?-oo O s 0 /S lZ t4?O a? I /o {00i SpBoc To t3? F1 u.EO avez ANO P'PCD ou-r By DoT- roofla5 I LM /2 ? X10 .l I F,7wA,zo/ 81,4cJ1-6a, ,j ?•?.?e • QS? • cd-,W TEww 4col. CA {.BEST A" C z S7(-8 0 2 0 .?, o0 o foo is° ?P Z z 0 O 4 ' f I /5f? j ?,sfav AL ?s ?o0 25 t ov I i ? .I o i i f . I ? f 2 p .? 00 2O +00 I < " I r7?x 31 / IA CMP Lcbn/A A'lood? ?° . /7 ZMI"AA Z77 a9 tao 4 5* _ J ,t.&zz ?ocG?'Ns I ?0 9 W AyL I ?5zCENV%110- 5_c. -9611 ,28 ? S? f 0 h 1 as t? I ?5 +oo Zra z Y tzo . 30 + NtB.b vo,Av4j AA dA4,jw / C?A??GG r MES Z ey9n/T ?o. 4-3ox I Z 94' 044,6"a, z A/<:z 0 j? # DO 1 O 1 is°I ?Eba,eq? ?E•Q.?cE /jLpp S LA,E'e?•3?iot'E ;8L ?.D- LA,L?E' kJq?E3? f/.?. X3853 I. 130 ,? o I Ijo 4-oo IV6 O ?D. -BOX 7Se 7 nqf 5, i, Al- e O yo foo Sco o0 I8 ?? _4'_i f ?I a? I i 3s {? l I I- I 7 ?St? lf5 p° l8 eAtP #of00 eMP LM 19-04-00 A I So t o0 50+00 . 1 000.4 /,?oFfyl•gi? f7 7 ,0 /?. .?A?SLiD,eE .Di2 /ZL%9.rc? F/A. 33/38. ?o +o 0 I? i k Tsj? ?I ?s;oo x ?5 goo SS f ov 1 I al 5 4 I? I Ga' amp .t i sD4«o I ,Sv,-oo 0 ?p f cry I ov 60 s' _ i ??'fov 1 I E I 1 io (5 fov ,8. i?5?ov ?cP ? 6/ ?00 t i .I ,o =otIpf 4-00 70 *oo h IF/A I 1 /v5 goo 70 '` o0 i F I I(?Stov Sc e 4,??17 " 75 t vd #75 IL ' _ 1 moo' T??iJ LM 1 I 4 s 70 ,mod ? 17v,coo - go JLC'uiZ? ? 80 ? o0 i i i I ~J5f4 4 ?? ? 8? f oo BS ,r o 0 _4 I 4 ' I I i ? go f orb IS amp 1**t.Ol I go+ov 60 ' elk) S? cut?s-1? 90,0'00 90 s oo al I i 4 ' 1 g? + Oo I I gs f o0 gsfro gsfoo I j _ 415* ,o o, 1?/w r IS ?P t ?al 90 0 I 4 5 4 ' e 1 I /--- 9? ? St Cum E1? PROJECT 0YfZ'---AYa' Z1*t Syc OWNER OF POLE LINE DIST. /ROM CENTER STATION POLE PRESENT ROAD 11 NUMSER LT. RT. POLE DATA MPN 61-03447 COUNTY ---? ----------------- Sheet---------- of ------------------------------------- Die?. /ROM CENTER DIST. CENTER PROJECT PROJECT AFT:." FTER MOVING REMARKS LT. RT. LT. RT. POLE -DATA FRCJECT 3u Fr ????LoT ?,e. iis14 COUNTY_ J?c?so.J SHEET "WhER OF POLES ??T??.o/A w E? ?N? L•?.,?+T Co .W.. Q- N 0. (e. 96 7-1 3 9 STATION POLE DIST. FROM 4- PRESENT RD, DIST. FROM G_ PROJECT, DIST. Q PROJ. AFTER MOVING REMARKS N0. RT IT. RT, LT. RT. LT. re-) 23- Z3 ?t-le- w.' C35',27 ,mow EROSION-CONTROL DETAILS AND SPECIFICATIONS 0 245.03 Temporary Slit Ditch 245.05 Temporary Diversion ...................... ....... 893.01 Temporary Silt Fence •:-.._-,-_..-•.,••-.• , 890.05 Temporary Slope Drain with Earth Berm .......... ?-- ?-- 245.01 Silt Basin Type A - 245.02 Silt Basin Type B ......................... .................. 892.04 Temporary Rock Silt Check Type-A .......... 895.10 Temporary Rock Silt Check.Type-B .•........... )00- 892.01 Temporary Rock Sediment Dam Type-A ........ 892.02 Temporary Rock Sediment Dam Type-B, ..- U 897.01 Rock Pipe Inlet Protection Type-A '?L. 897.02 Rock Pipe Inlet Protection Type-B, .......... Rock Silt Screen 245.04 Stilling Basin ....• .............•......._..,.. .•..-. Rock Inlet Protection: LEJ 896.01 Type A ............................... A E3-- OR •- A 896.02 • Type B .............................• g El--.OR •- B 896.03 Type C ...:........................... C •- OR -- C 12 March, 1992 ,,fi?tt Y . T .ice?' .•,.:?Y;.. .. - - ... .. ,.? ..?r-Kj.;_-??-'L'+:• ? -' .. ice. ?'s 'Fd_"?.'?'.'??aya: .r +?•??.?iC-_. ? ?y ..g..: Z fit. d > o Q jMJ co >O O E d. act: o¢ o W 'r ZILLq aim . ? 0 vl ' P 0 TEmpoRARY SII.T 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 no 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 >i C) alri III I I ex 111= lu LLJ III w? U I - - ?w z = =? ? °F w a? ~ z z F- wx vw w3 U) F 0: z N ?7w w ill-? ? 0^ ? Q? ? d il I Q ?z _ x's a m ? c I i ?_ Z _ III == ° = o? ca a ... 0 p0•_ LLJ w o a z F- w ?z F x a O E-= t a-? c F' co .4 e- °w wd ?: w w H ?? ?a ? x w ? zx aw zww z w CG o x ??-i?oax .7 E,, a .a z F Q C w Cz Gcl a= ?vxicn ?xa=z°ya. w .. ? zi ti V im G Z CK 04 d3 >*m W ¢i O ? 0.4 4 4 .4 m a z r g F? a 4' V]xy aZG1GCE» c'a N N1 z o° m wE- w9z-3zp• z tea- ?iowvwx? c- ?eD cd a o Qm z Q F <k.MVI=VV)Mo o z6.a a.e_ z QO _, N E o d? z ow owo xd a? FN F UT t, zl al 18 March,1992 A temporary rock silt check type-B (also called check dam) is a small dam with a weir used to reduce gullying in drainage ditches that are to be filled or permanently stabilized at a later date. These type-B rock silt checks help reduce the flow velocity and are generally made of class-B stone. They are used in ditches during construction where the grade meets and/or exceeds 3%. AREAS OF USE: • In channels, roadside ditch outlets, temporary silt ditches, and temporary diversions. • In conjunction with type-B silt basins. DESIGN CRITERIA: • Center of rock silt check shall be at least 1 foot lower than the outer edges (top of channel sides) • The spacing (ft.) = (3 / % of ditch grade) X 100.ft. 27 March, 1992 0 2 U n ° o J J N ? U = L) O ~ F- nW. ° o Q W ti. > o 0 o a a 3 W Z Q J a. ? FAQ` vl? J ? a O N , ,, w I > W m Q i z t cr. w F - , CL o . ' w I w a Y m .?w ---• U , , 'i o .? m r. ' N W Q CL m ?- J X Z O a. _ o L) z Z= o= °o ~ J U ?- i U Q Uwi O .--., = N LLJ 0 N O NW - NN NO > %.? O W cr cc Q U U ` cr- U J z^ ?i U aCZ• E"C f 0Q? Z Q Qo` p Fc LLJ M z ?cz F- U) O F A] ?. n W F- m U w •a z J m O J F- F-JQZ N O S O z z W m N U 0 O_ mZOW/? N OZTi1=0 JU¢h-Wm• ¢Tz r- =02 ¢wm• N-m Uo1.m (no cr.-O wo air ZmNU.a.ww OWN ZU) W?-- ¢OF-OQ t- N m J ?-+-F• J O O U¢ Z N U Z LL. -n. =) * 28 March,1992 A rock pipe inlet protection type-B is a small horseshoe shaped structure. The type-B rock pipe inlet protection-shall be used at pipe inlets which are 24 inches and less in diameter where there is. insufficient space for a type-A rock pipe inlet protection with storage area. The type-B rock pipe inlet protection utilizes class A stone lined with #5 or #57 stone to protect drainage pipe structures by impounding the sediment laden water before it enters the pipe to trap sediment. This device can also be used around the inlet of temporary slope drains where space is limited at the outlet end of slope drain such that a basin or other device can not be used. AREAS OF USE: • At inlets to pipes no larger than 24 inches in diameter where it receives flow from several directions. • In low flow areas where right of way is limited. DESIGN CRITERIA. • Structural stone - class A • Erosion control stone - # 5 or # 57 stone. • Dam height - 1.5 fY. minimum. 35 March, 1992' :S.«:? ?'.'?? ? ' • ?i Wr??r gal.. .jiya????i. wv-.'n'.--'.?.. i 'A.•?uJ'?:?Ty«='.. i ' _'J _ - i 57F +?• ?±' '? • : j: •? . . r •. .. _ ?• a rrv.? rTt may'. ),.?+.?h ?4 iM:L'?: T+:: Sf 4' ; s? •• .. 4?" - Pr • ? ? ' .C a} ?. r.• . .?JiS.i.i:'-...?: - `Zy1r. ':`.+•?.ve:'!:t?y =•s.:#y::,!ii. _•?3?.•=' C LU ? C. 0 LPL Z r 'r r i r r r 3 Q f d ` Z Z F ? C t%2nF?0 .FC. F CA fs?0j?Zm6° =mw E- f-. Lai m ? C 3 E to fs? -2tsZ = FO?IZ' C.3? 6yaF?dUOt/ZUOZy 96 . CCda.Zil'?FZ GIFEZGI?Gl ?ZVZ °2ZV1o-jw= G E-mcc a WW=E•W G =MG cj 6?U 7 0 ?C36FO.orzF Fn??dUZ-? JLZs7rr3 3, VE F?j dZZZr%jCpZZCU"y3 ?.? O ?.r000 FOZO UFO' Z CStr?UFU mmr..=Q <OF L U.J ? O C!) W J i • O cr. I". 7 O Z • ?O Z N w 0 w W 36 ?r r L( r X ?. rte, ?a.; CL r i r Ltl 1 N z r Z z ; Q O J O L i? Y M J Z r J? Q Q O_ U Lrt^l v., r 4c C.r f A m t LU O W OfZ z., Q_, O.r Ltl .t .Z Ltl CL O_ CL v? c:l z r? V I 1 J2 Mar+ch,1992 ROCK SILT SCREEN: 3 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 fL maximum ( shall not be higher than 1 ft. above normal flow of stream) 37 March, 1992 0 W z J W °?ao Fay?w aEx-o NOddWN NOwU^? G'pyta. W...,, VO 'azWdO OW ooozoaw °xx avwi xaa 0:: G„p„ JE•- W OwOGE-O z?dOZwWpp J0.'?---+L*. O xU z dOdd Z VOV2 ?pOOZ f? G?. J 0. O W E- Z W E. z w rax w? E=.-W we-ocoWwzE-? ow> UZJmUE-e ?Wd p-J'?m? CE0-0Ja?NpJWdWakJdx E-w ZdZZ,4m.40 VZ2dwG" o wpxoo-, =C-01=0 x w o z a?c?rnc?E wrnC?.a.c? vZ..c 3 C ? C D 2 0 LL. QX , S ? fat O __ x :n b- ? N b- iu ? m N N ° x U ~f N R 2 s` Ci 2 C° vF. I Z _ W W rr U Cn F- ? J ? 04 U) U y Z O C--R= ow, D w> r ?n t 0 Q W Q ?I 38 March,1992 SR 1154 5 rre .- I , ,'Xrshi l STA. 6+74 f?ep/rice tvl??x S0' X2¢„ a0 --X-'ea. ;.?? F.// S/op?. GrXiS; ?ropos?? f=.II .S/aPc ¢" 'y .Sd ' G ?7? r7oe,4 S,?i 1Green 0001, .*1 er. ?x?f,? 48" X a6' G'MP P?o? al S7%? 3s''1.w T ;2 73 AV 55 ZXiS fi nl 48'1 / Note : ProPos? P-P Reeds ;o hn (?rAa?e SrrE Z P??Fes?a r,?l p? T/6JO6 ? ,STX ? 8 v L /CI'? ?/yI?4 atiQ ex, a6" 5S4 e- 40? 3 Nom' ??? SI-rE 3 Ex?s ??:? 3?. o /,6" x3G" qe%z C.7P 3?ra- ,Qo S?f? g? t7Z /o° skew b? 6, Ow Prop ?a fir Sn 31.0 ?Z o Cf??r??el Ch,?n9e Cross S?cfiov?s -57l9rJ ?9f /-/ s rr ¢ cal/ .5 fF/. ? ?? SD Propose Fl/ S/Dpr, 3, 3. Ile r Zo r 7 G ch ofne l x1.541 Ch?nna/ NeW e-C 170t 2 9f ( o Proposed Fl/ S/9c,? 3' Sulu Zon c -- -- ? ?ropasec) G' i?,?n?el \zxChr?nr?a? Ilea) 41, Sfa T.L- ??d v?? ,-h one Bof?,or•? t Mw 41