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HomeMy WebLinkAbout19950050 Ver 1_Complete File_19950119State 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 AIT7 ?EHNR January 19, 1995 Macon County DEM Project # 95050 APPROVAL of 401 Water Quality Certification Mr. Trent Anderson NC DOT P.O. Box 1551 Andrews, N.C. 28901 FILE Copy Dear Mr. Anderson: You have our approval to place fill material in 0.068 acres of wetlands or waters for the purpose of road maintenance at SR 1413M, Hampton Branch Road, as you described in your application dated 12 January 1994. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Number 2735. This certification allows you to use General Permit Number 031 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 30 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 Domey at 919-733-1786. Sincerely, oward, Jr. *e Attachment cc: Wilmington District Corps of Engineers Corps of Engineers Asheville Field Office Asheville DEM Regional Office Mr. John Domey Central Files 95050.1tr P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper r O O RECEIVED 4 q 50 JAN 1 :8 1995 ENVIRONMENTAL SCIENCES STATE OF NORTH CAROLINA MANCH DEPARTMENT OF TRANSPORTATION JAMES B. HUNT, JR DIVISION OF HIGHWAYS R. SAMUEL HUNT I I I GOVERNOR SECRETARY P. O. Box 1551 Andrews, N. C. 2MI January 12, 1995 401 ISSUED MACON COUNTY SR 1413M Mr. Bob Johnson U. S. Amy Corps of Engineers Reg. Field Office Rm. 75, Grove Arcade Building 37 Battery Park Avenue Asheville, N. C. 28801-2714 Dear Mr. Johnson: The North Carolina Department of Trion (NC D.O.T.) is proposing to grade, drain, base, and pave SR 1413K Halton Branch Road, in Macon County. In order to construct this project in accordance W1 0i our cunvnt secondary road standards it will be necessary to extend or replace corned metal pipe culverts at seven (7) locations and incorporate five (5) short stream channel relocations. Due to the nature of this proposed work, we are requesting arrthosization under Section 404 of the Clean Water Act. The affected streams are Hampton Branch (DEM Class C) and tributaries. The proposed channel changes are not located on the same stream but are tributary to Hampton Branch which is tributary to Parbulp Creek (DEM Class C, Trout Water). We intend to exercise every reasonable precausm to protect these valuable natural resources. If possible, the channel changes will be constructed before stream flow is permanently diverted into the newly constructed channels. By doing this, the downstream movement of silt will be minimized dwmby prole fang Pa>ridge Creek as much as possible from this type of construction work. We have wed every reasonable alternative attempting to eliminate the need for these channel charges. We were successful at two (2) locations but on the five (5) mentioned above the stream relocations were our only feasible alternatives... I am sending a straight line diagram with the proposed erosion control, stream, stream bank, and construction limits at various sites along the project where we will be in s?? conflict with the streams. In addition, I am sending a typical section of the road, cross- sections, drawings for pipe culvert replaces, general, notes and standards on some erosion control measures, and a marked map. We propose to install the new culverts slightly below the existing streambed devatiom when bedrock is not encountered to minimize impacts to wildlife habitat and allow dw existing stream gradients to remain as unchanged as is physically possible. The best management practices will be used to minimize and control sedimentation and erosion on this project. The construction f reman will review all erosion control measures daily to ensure sedimentation and erosion an being effectively controlled. If the planned devices an not functioning as irk they will lately be replaced with better devices. The rocksilt screens and other erosion control devices will be in place prior to pipe culvert construction and will remain in plaice until the project is stabilized. By copy of this letter I am asking Mr. David Yow, North Carolina Wildlife Resources Commission District 9 Err roiunental Coordinator, 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 Clean Water Act from rite Division of Environmental Management, We would like to begin construction as soon as pile. If fiuther information is required, please call me at (704) 321-4105. Your early review and consideration will be greatly appreciated Skcerely, W. Trent Anderson County Maintemance Engineer WTAlrr Attachments cc: Mr. Richard Phillips, P. E., Regional Engineer, DEHNR Mr. F. D. Martin, P. E., Division Engineer Mr. E. L. Ingle, Area Roadside Envkonn1= l En neer Mr. L B. Setzer, P. E., District Engineer Mr. Eric Galamb, Water Quality Certiftcati= Unit, DEM Mr. David Yaw, District 9 Emvhvnr nental Coordinator, NCWRC D£M ID: ACTION 11), Nationwide Permit Requested (Provide Nationwide Permit ft Z(V JOWFOMPM- Natlonwide permits that reqUhv to a Corps of Engineers Nationwide permits that rere t for Section 401 certification WILMINGTON DISTRICT ENGINE ER WATT QWUJW PLAN CORPS OF ENGINEERS DID € F 5 tl1lD NTAL MANAGEMENT DEPARTMENT OF TIDE ARMY NC DIEPA 'f OF WVIRONMENT, HEALTH, P.O. Box 1890 AND I'IAL UUMS Wilmington, NC n402-1$90 P.O. lit aft ATTN: CESAW-CO-E 2? 3S Telephone (919) 251.4511 AT?4'19: . JCW D .GY Tehphow go 733.5fl ONE (1) COPY OF THIS COMPLETED APPLKA'TION = BE T TO THE CORPS OF ENGINEERS. SEVEN (7) COPIES SHOULD BE SENT TO THE N.C. D ION OF ENVIRONMENTAL MANAGEMENT. PLEASE PRINT. 1. Owners Name: N 0 (bh Coro 1 • - Ike P o? } r..e,??j o ? ?roevs e r ?• ier` 2. Owners Address: tom. D • C3o 1 S 51 f ew s k C;. _Z89-01 3. Owners Phone Number (florae): (waky (104) 321- 4105 4. If Applicable: Agent's name or responsible emponse afteas, pbeae number: ?.` . "Cce?•b ???e?st 5. Location of work (MUST ATTACH MAP). County: c a! Nearest Town or Ciy: A n ew fa. KI is •_.- Specific Location (Include road numbers, >a6&narim, mc.). `? 1Z 1413 M 19 Rd ? q 6. Name of Closest StreamlRiver. 14 0 rhAo r f t + 7. River Basin: L; We- 're •%,,essm M- 8. Is this project located in a watershed classified as'1 , . mil, COW. WS I, or WS H? YES [ ] NO t4 9. Have any Section 404 permits been prt ewly rag ed i br ume m ddt 9wputy? ' YEIS [ I NO K If yes. explain. 10. Estimated total number of acres of waters of the U.S., bdoftwaft0k belied on Prop site: 11. Number of acres of waters of the U.S., hu tling meted by the PmPaed Pr'p.1 ? F il l e d : 0 . 0 0 7 t 4 c c e s CSI qtr e 5 d • 0 (0 1 Actei Cn e k Uo"Jas I)r?ed• Moo&& ....,..,.?_...,...... Excavated: ?..?...,........ Total hdpacted: . , 1. 12. Description of proposed work (Attach PLANS-3117 X 11" drewinp ody): w s der, or S pov e.. S iZ a I3 M. --n rr.¢¢? c rreu•?- ?.. solan e.,ls . 13. Purpose of proposed work: So.., e. 14. State reamers why the appiBcant believes drat lhia activity utttutmt be *% is w . Also, note measures taken to minimise wetland hqmts. Fisheries service 15. You are required to contact the U.S. M midWOM00,401 (NMFS) ree a$ the psi or any ?1er1 or??rt ? a or threatened ies or critical I babitmt in tie perm( area that may be a?? *e g? jai d so? . ?x] NO RESPONSES FRom THE usFwS ANDIOR NW% TE?CORPS. "'? °PPi' Cory 16. You are required to ensue( the ftft MW0dC PWM Ighm' the a of historic Propertkm in the permit area why maybe dh"ll by dwrwmw you do so- ?X] NO [ I RESPONSE FROM THE SIVO SHOULD BE PORWAROWTO CORD,. -/ .PP 1; cod i u w 17. Addidowl lion ruD P&W by DDA'A. Wetlend ddinemn Mp showbI mE wu a, ails , ath*006# t y B. If avail*k, repave Pb06D&Wh Of WCOM&OW C. If delineation was pedbrmed by a twat, igti p a dw pboament of the delineation Hm , D. If a somnrater maaaganent phg 1t 9 0*6 0 iitr E. 1Nlat b Ind ume of nwowmftg ? R."-O i ?... w• rc5 i d Ewa : • l - w?.rr r F. If appbcab, wluat is puroposed Wedwd of aawas 4 how, tZ ?CI9S- Date F? c ?: I?w Z 0 V .:? M Z a oof V `I a b \ ? 1( \? ?16it ?V?' ?r ! ?? • st r y 1 ,her A - I? n• a ?1 \ l i!r•?? / J A` A o ) ,. FX I ?? t k ??I r$b J 1 t ,• F IA Ofv qc> 5 Q 9115' f? 1 rf - ?? ? ? ' !1 i 1 3054 09ST. f Ali- 'TIE Co10obT. Co. ROAD NAME 1 1413 _ -? , 6.972122 AD DTI O fol. ----- - ( fir!PROVghdENT Z • TO BE PAVE D --- a----- P POLES TO BE MOVED 3 T. PO L E S TO BE MQVE D . 3- ms 50' FWW STA. 0+00-7+2: R/W V I DT H 45' FR M STA. 7+25-38+- SCALE 1'?-- 50 05-08-92 DATE 5 91 . . r ttt iNOTS: CHANNEL CHAMOR FROM STA. Sap TO STA. St50 NDTH: NHHD ADOMONAL EASH[HNT FOR CHANNEL CHANOH STA 3+75 BEGIN TSF do RBI S+00 T 5+00 c r.., STA. 4+50 BEGIN FGR 6'A HOUSTAN DOUTHIT STAR RT. TOPTON, N.C. 28781 (1) CY r T, ?y r 4 \ HOUSTAN DOUTHIT STAB RT. TOPTON, N.C. 28781 (I) SITE 1 3+80 TYPE "B" CHECK DAMS ® 100' O.C. / i I C Proposed : /ohon" REQQ V FROMANGE 1 STA~3+81 TO 5+50 TYPE "B" SILT BASIN 8'X3'X2' 3+75 BEGIN TSF & RB 1 iI V ROCK SILT SCREEN I TYPE "B" SILT BASIN " '` 1 B' X3' X2' t 6+00 ' /. T pe 'B° / 5+50 check dams 0 100' O.C. lI 5+00 / CHANNEL CHANGE REQUIRED / FROM STA. 3+81 TO STA. 5+50 t RIP-RAP LINED CHANNEL 4+50 2:1 S I flE SLOPES ? J +Fart=_ TXpe "B° ! , I / L 4+00 Silt basin Rock silt VP screen 3+50 T?pE «8« Slit basin I 3+00 ! JAS Chico tal Ctwge #1 S. 1413-M (w t Brash Rd.) Abel" ? County, N.C. 6+00 I 5+50 5+00 I 4+50 4+00 1 3+50 3+00 r. ... -??.. 5:?;;: M JOE W. MORGAN GEIIEBAL DELIVII; Y TOPTON, N.C. 28781 (2) tv? SsTE # 2 10+00 517 (.+75 L=ND Flo R ? ?'`??•' r? a' • ?aa 0 d L n IrOR''S: f:1?A? 3+61 NOTE: NBGIN 45' R/W AT STA. 7+25 TSTAN DONTHIT STAR RT. TOPTON, N.C. 28781 (1) 4 SITE 2 STA. 6+75 l r TYPE "B" SILT BASIN 8'x3'x2' r LA- 18" Club' S.R. 1414 r ot SITE 2 _---? --- r TYPE "B" CHECK DAMS ® 60' O.C. tLr r vi, I I I HAMPTON BRANCH J ROCK SILT SCREEN -1 -1 -1 -1 -1 -1 - .t NOTE: STA. 13+70 TO STA. 14+20 i an !/W TO 12* LT. C1. FOR 2-CM CORI= } GOY GRANT C/O NOES. S CAALRM GRANT STAR ET. BOX 311 TOPTON, N.C. 28781 (3) NOTE: STA. 13+70 TO STA. 14+20 CEEB & lN3'1'f'!A 13+25? ew?ck vAMS ' o. C. 1 C:C wt JOE MO N GENERAL M.ITNNY TOPTON, N. C. 28781 ? (2) 15+00 sm 15+00 CA!o TSF GUY GRANT 3 C/O NQEL do CARLENE GRANT STAR ET. BOX 311 TOM, N.C. 28781 (3) ISM lit &-A;,b I?OCK 8 IL HOUSTAN DODTHIT ! STAdit AT. TO 7, N.C. 28781 (i) (6) 20+00 PL 19+80 NOTE: STA 19+25 TO STA 19+55 REDUCE R/W TO 18' LT. CL. FOR ROCK WALL PL 18+57 20+00 _ 3' BRANCH '` of NOTE: CHANNEL CHANGE U- "'i? FROM STA. 19+75 TO cn STA 21+00 STA. 19+50 SHED BEGIN RB NOTE: SHED TO BE MOVED E r LL. F SITE 3 TYPE "B" CHECK DAMS 0 60' O.C. (TYP.) J.D. R JESSE OWENBY STAR RT. BOX 314 TOPTON, N.C. 28781 (3) TALMADGE OWENBY STAR RT. 314 TOPTON, N.C. 28781 (4) r J.D. & JESSE OWENBY STAR RT. BOX 314 TOPTON, N.C. 28781 (S) NOTE: SHED TO BE MOVED NOTE: SHED TO BE MOVED r fT w in 17+76 PL r in t-- i 45' I i 15+00 15+00 GUY GRANT C/O NOEL & CARLENE GRANT STAR R1'. B& 311 TOPTON, N.C. 28781 (3) w w ?. ? .7 1 H. 18t?? ? ?I 22+00 22+00 ? 4f 21+50 21+50 21+0021+00 Channel change req'd r/ Sto.. 19+75 to Sta. 21+00 Ripr-Rap lined channel 2:t side slopes 20+50 s? 20+50 20+00 t- 20+00 i Rock silt'scrden 19+50 19+50 i 19*00 t Cif CM #2 19+00 R. 14"'1-M *,mR Branch Rd.) d*on; County, N.C. v. GBRALD & JSSY maw STilZR RT. TOP'TON, N.C. 28781 (8) L 4 g ..M . +.?C Et. S 1t.T SAS NJ B' X 3' KZ' F T`1P? `•Qy., Sf?T Ba?tA1 f m & f rM JONgs S'A'AR R?. M 315 VW LOi[, N.C. 28781 (7) RUSS: MAWL CSANGE FROM STA. STA. 23±50.. gleam Am 8' x3'?2.' y; Ii ION" RASENKHT a 88 CSAMM 22 - TAUM= OVOW STAR RT. 314 TOPTON, H.C. 28781 (4) ' J.D. & JBM OLIMBY STAR RT. DDX 314 TOPTON, S.C. 28781 1-4 (5) 31 Clk*AIM $; CAE FROM STA. #Ah-'s Q -M, C4"! 91 ?L1A 1 27+00 1 26+00 1 25+00 1 24+00 1 23+00 1 22+00 21+00 26+00 1 25+00 1 24+00 1 23+00 1 22+00 1 21+00 1 4 a a r MAM a. OMAN S R. MONGRAN . fOrM, Q.C. 28761 k SUR W. _ (10) ,11.C. ??1 yaGC ?zyC,Ms • S1Tw ? ?'x? x?' $-t- Z.? BEbr?J -r bT- ?• .w", 'Z.c Eav -tsF ?r.R?3 I;tT. z- I -.r . alrU , GERALD 8 .1M" NORM STAR' RT TOPTON, P.C. 28781 (8) 1-45 At2fb "' - ,!f ? i 6e kWISR M. NORTON STAR lT. BOX 316 TOPTON, P.C. 28781 VITS SM 18" CMP 1 a -0 w SITE 5 STA. 26+75 1 2' BRANCH y ? TYPE "B" SILT BASIN 8'x3 x2' 1 JVI >l ce TYPE'"B" CHECK DAMS 0 75' O.C. i I Ic I TIIr C CT A &30 , 79 v¦ • w v STA 28+20 BEGIN TSF & RB LT. CL J TYPE "So SILT BASIN 8'X3 "I X2 i ?STA 28+20 END TSF & RB RT. CL f- , i Z 35+00 . 1 - _ z$krNucHl ,t,?6rE C;MV*vEt_ ciMiueoC FRm *79. 34-op ?b ,STfP. 34+50 K K G. A.J. & RITA GAMM 1 35+00 R WILL D. A CHARLES JACOBS STAR ST. Jy TOP M, H.C. 28781 (12) A? Ot 21085 JIMUAX TRAIL # , 1 1. FAIRHOPE, AI:. 36532 ? ? ff NOTE : 10 ADDITIAWAL Nom' x 'x z' SB NEE= Fm ew . . A.J. & RITA GABEL REPLY! ,.• 210$5 JHBILBE TRAIL otoSb_ p•• FA ' , AL 36532 ° . ? 2' BiQARC`tt?-- NOTE: CHANNEL CRAM FRS! STA. (i1) 31+00 TO STA. 31+72 31+00 1 1 4 5, #4 h 30+40 30+00 35+00 35+00 34+00 + 34+00 33+00 old 33+00 4. to TYPE "B".CHECK DAMS 0 so, O.C. (TYP . ) 32+00 CHANNEL CHANGE TYpe "B" Silt Basin 32+00 FROM STA. 31+00 TO STA. 31+72 RIP-RAP LINED CHANNEL WITH 31+00 2:1 SIDE SLOPES 31+00 T ROCK SILT SCREEN c, ! Proposed channel Rip-Rap lining 2:1 side slopes 30+00 OD v '- 30+00 va r t 29+00 29+00 Channel Change #4 S.R. 1413-M (Hampton Branch Rd.) Macon County, N.C. 4 C 35+00 35+00 Existing Channel Cn 34+25 Proposed 34+25 Channel 34+00 34+00 Rock \\ Silt Screen t Channel Change #5 S.R. 1413-M (Hampton Branch Rd.) Macon County, N.C. 50 0 50 100 SCALE: 1"=50' ALL D. & C LES JACO s, 38T?t EN o K ... _ 5 RTc 7 8'x3`*2's$ ` --?--- ADD 15" CNP p i STAB BT. TOPTON, A.C. 28781 5 37+Sc END noun" (12) { !. A CHlYLES JAGOBS L? ?f 8 STAR AT. 120 --A„? TOPT08, N.C. 28781 ? B?X3' ? SB (i2) 1 •? ? xa •.ov e j 7 4 t SITE 7 I STA. 38+5d /. IlilillilllllllllilllllllllllilllllllJlT.?(M?,I'Illllllf[TTTIT .r ? 245.03 Temp y . Ditch .............................. 245.05 Temporary Divert ............................. _.... ,:, 893.01 Temporary S Ferm ..................... .---111 ifft-- 890.05 Temporary Skqw Drain h Earth Berm •- .......... Sat Basin Type A ................................. -0 245.02- Sit Basin Ty B .................... 892.04 Temporary Roc ' Gl Type-A .......... 895.10 Temporary Roc SVt C Type-8 ............ ,'. 892.01 Temporary Rock Sedimeft Own T -A ............ 892.02 Temporary Rock Sedkyw4 Own Type--S ... V 897.01 Rock T? ........... 897.02 RoCk Pipe irk PMOWNM Type-8 ............ Q 894.01 Rock Sik 8aven ............................................. 245.04 Stiffing Fein .......................................... Rock Inlet Protection: V-0 ? 896.01 Type A. ............................... A - OR -' A ............. B OR -- B 896.02 Type 8 .................. .. OR C 896.03 Type C ............................ 12 March. 1992 TEMPOPA PY E OS O I CO iI TPOL SYMBOL TEMP .STONE DITCH CHECK CK S%LT CHECK DA IUD IL T BASIN- g ; i -E MP. SLOPE DRAIN ---- -EMP SILT DITCH -- TS D AR TH EMBANKMEN'T` - - ?- T ILT FENCE C. 0 BLRGLASS ROVING ? r- G R . Proposed Road .. __ ?._.._. _ Ra;Iroad ..... ................... fic? Control of Acce?.;,) 1,111". Slope Stake I,111:.' ........ ........... _?_.. --- Bridge ....... ... ... . ..... ........ . . Culvert ................. ........ ??.?•i.'?.?.?%•?•J o. -??-_ •..--- Woois ............................. Telephille or Telegraph Pole ........ . Tower role and Line ................. --?---? ______---- Power Pole ......................... ?i:?:iti:' o ? ???itc??• 6 Easement. Lille ...................... Guard Ra;l .......................... Sanita?•}• Sewer Line ................. ---= : --'-?-s; --- 1`Ja to r Lint ......................... ----; ?-----=' ? Gas Ling ... i•i-'OVO,i u1 i:X'i'iNG Chain Link- Fence ........ • ...... -? ? -?--?-- woven ivii-e hence ... _ ation R e;cncr Reforestation ....................... Tempora,•v Silt Ditch ................ Ts.ni - Teinporctry Sdc Fe?ic: ................ ---;•;?---ifr-----Tl;r Temporary Slope bi-ain .............. T tusk Barrier. Silt Check Dani Type A ............... ., Silt Check Dam Type B ..... • ....... • • SiltllasinType A ........•••••••.••. S;1c ?3 ain T\,pe L' .................... .,.;-s.- _,-- .--•;-:-. :?:??L??-?• :??-.rte - :> Rock SI.C Check Dam ................. - - - ---' 1:,,m-Lh Bcrni ........................ . Tettih, c tone Ditch Chec' TE1IP0RARY 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 = 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 CRmmA: Material ` ithout Wire Fabric Type 3 Class A 'T'ype 3 Class B Steel posts length 5 ft 5 ft Post spacing 10 ft. 6 ft. maximum w BOO C? 33 X `- 3= x x m? 0: 3Z f aW U O Cr wa O N aCo o? O X N U Cr Co a LL fC w J -- i LL 1 D Z 0- 4m Z Ow 0 O a t- U om C13 Om a J 0- a o= I-- (n W 3 w O z J J v U. o Co 4m w LL W I..- w 3 +¢„ Jn LL a h? _ as ! ?11 so ""- ^ O M 4 a mm („)U -Z L « m? LLi ~ ----- ----- ---- LL _ ----- -----------'z O O H- ' v z Z WW W 3 N D Q Z 0 M Cr. H w Z WO Z «? 3 WW Z lm- ¢N @ O ~ m X WN Z WJ ti do -JOW? w J twn (G Q J a «a (a x W 00 Jam. a J 3 EC0JZ J W Q t- LL W J? m=u' Cn Uan? ?= ° r_'-' W lz JZ 39 O Cc Q?O?-N W m F- N W Q'R W Lj.3Qm(LC) 0 Z W V) w00 in?z WzcDoJ 2 < r 0-z O --t CID IMF- ? ? tfi L) -i 41 ?o a W N 0 .., C3 3 O a n c LL a NI -7 March, 1993 U W L` c ?-- z U >- U a H O O a- z W l p t- O Q H U) m ri o? 0 N (. . a 1 SILT BAsil, TYPE-B: y A silt basin type-B is a temporary basin belt 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 moored 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 feetlac re (equals L x W x D) VI-12 March, 1993 J ;s- i s a s 11 !I'' I ? Ij ?' i! 11111. m IIIII IIIl I 111 ? ?!?lll IIIII - 11111 IIIII -- II !!! ?' II_Iil 11!11 ? IIIII ? - . =1111!!1= lilt! a ill ? l ll u ~IIIII ? Nili I I I I 0111 0 W J W { l zi rirr?ru? ?rrurirurr? r???i V v ... t VMS Mawh,1993 ,. T• :-: . ,, . ten,; . .. . diN Z O SIN m w 0- Wj z z a? Q ua? m -z X=2! J paw P-21:4 O? a F? Z E" v a? 0 ur m ?s t? v TEmPoRARY Roca SrLT CHEcK Tyw-$: A temporary rock silt check type-B (also cad 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. RESIGN CRnEMA: • Center of rock silt check shall be at least 1 foot tower than the outer edges (top of channel sides) • The spacing (ft.) _ (3 / % of ditch grade.) X 100 ft. VI 16 Much, 1993 R V r` U ~ W o a 0 J -? N U = a O O w W j O O O d w w I u 3 W Z w' a J CL .Z U I-- O a J t O ?t 3 O ' W w 4 > d Z O w t Q ! ; W m ! t N t u t t t i .1 t LL m r--. W Q a LW F- ~ J Q? O Z E F- CL 2 O v z 0 oo z ? H U F- W O O ?w ?i ON U5 !/iR U rm r N Q Zip m m W r F- v W U J ? U O E- 0 or_ Q 0:- w 0 E C m? Lli f- O Q 0 Q Z E n w F- m w ¢ -1 F- ?- Womozz O(n000 Wt- F- ? mzow V) OZ=CCo JUQF-WCr-• O-W Qz-I.- - 2o• ¢wrr• W-m UOm (f) . ??LL• wo oa zxwL.Laww o w Cn z cn Wf- QOF-OQ F- W X J.-+n-. t-- J O OUQZOQ Z W--CL=)- - March, 1993 d ROCS SILT SCREEN: 3 a A rock silt screen is a low-level dam structuve 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 sue) z' . s f Vi-24 March, 1993 f f v xY?? ?l wW N ? Q. O ? f- 94 m w t z d Fwz o?dZZ 'd?? zE m0 E- `r'a w G??a Z - wo daw0 ?zwu- oar. U -3 W d o W oomomw aw ww =Q"d ..3 Z arx?0E-0 o0=UZZWQo d V ozo z f- 0 w6.?ao :, wzAW E zw Z r > aFC4.4 EO 4.awdwxx.4d wE.,V1E-aE- ?waZ VE?da E- d 0 wo=oo?-'V'=°o 4o?= X.W z MumuE-V c WE CL u W-P 3 W > f H cn z 0 LL X a J V V N zD N 1Vt W O U N Z 0 VI-25 Match, 1993 Mi X16 I Fib z LLJ LLJ rr u (17 J ?f. .ate ? 4su O r'r Q2W 0 W r: Q F 0 ? Q (10 Fr-1-10 h Fes: lei r,:,\ '? r PIPE OUTLET ENERGY DSSIPATUR A pipe outlet energy dissipator shall be used at pipe outlets to slow the water velocities when it exits the pipe and flows out ditched or natural waterways. It is an apron of stone of a sufficient thickness to protect the outlet area from scouring out and causing off-site sedimentation damage. Pipe outlet energy dissipators should be built according to the guideline chart shown on page VIII-3 of this manual. AREAS OF USE: • Outlets of pipes and culverts to prevent scouring. DESIGN CRITERIA: • In accordance with chart on page VIII-3. • Filter fabric, or six inch layer of gravel, shall be used under stone. MATERIALS: • Filter fabric shall meet requirements of section 1056 of Standard Specifications for Roads and Structures, January 1, 1990, for type II filter fabric. 4' a 2 _y VI-34 March, 1993 VP Y? Y? C C Q CO 0C C 41.E ?s l Q. Om CL Z i a 10 m C m D C 0 to mU m Q .1. ¦ . h-? ?-. L. O 4-1 `V CL .W .CO 0 L w W 0 ^W iii ._ a 0... y v v ? V V) 0 2O w .. 0 0 0 `? v1 0 603 CA C 4 p ) on • 3 ••• • VI-35 M !Q LL ? p G _0 m N ti .._ March, 1993 DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O. BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 REPLY TO ATTENTION OF March 24, 1995 Regulatory Branch Action ID No. 199502031 and Nationwide Permit No. 26 (Headwaters and Isolated Waters) Mr. W. Trent Anderson State of North Carolina Department of Transportation Post Office Box 1551 Andrews, North Carolina 28901 Dear Mr. Anderson: Reference your January 12, 1995 application for Department of the y (DA) authorization to widen and pave S.R. 1413M (Hampton Branch Road), ong Hampton Branch, in the northwestern part of Macon County, North Carolina As part of the project, culverts will be replaced/extended at 7 locations d 4 channel relocations will be needed. You have informed us that channel c ge #1 (as outlined in the plans) will not be necessary now. Approximately 0. acres of headwater wetlands and stream channel will be impacted by the proposed construction. This project has been coordinated with the NC Wildlife Resources Commission (WRC). For the purposes of the Corps of Engineers' Regulatory Program, Title 33, Code of Federal Regulations (CFR), Part 330.6, published in the Federal Register on November 22, 1991, lists nationwide permits. Authorization was provided, pursuant to Section 404 of the Clean Water Act, for discharges of dredged or fill material into headwaters and isolated waters. Your work is authorized by this nationwide permit provided it is accomplished in strict accordance with the enclosed conditions, those conditions outlined in the February 22, 1995 WRC letter (which you have already received), and provided you receive a Section 401 water quality certification from the North Carolina Division of Environmental Management (NCDEM). You should contact Mr. John Dorney, telephone (919) 733-1786, regarding the above mentioned water quality certification. This nationwide permit does not relieve you of the responsibility to obtain other required State or local approval. This verification will be valid for two years from the date of this letter unless the nationwide authorization is modified, reissued or revoked. Also, this verification will remain valid for the two years if, during that ` period, the nationwide permit authorization is reissued without modification or the activity complies with any subsequent modification of the nationwide , permit authorization. If during the two years, the nationwide permit authorization expires or is suspended or revoked, or is modified, such that the activity would no longer comply with the terms and conditions of the nationwide permit, activities which have commenced or are under contract to commence, in reliance upon the nationwide permit, will remain authorized. This is provided the activity is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation. Nnw an ® R-icw paw -2- Questions or comments may be addressed to Mr. Steve Chapin, Asheville Field office, Regulatory Branch, telephone (704) 271-4014. Sincerely, G. Wayne Wright Chief, Regulatory Branch Enclosure Copies Furnished (without enclosure): J ohn Dorney Water Quality Section Division of Environmental Management North Carolina Department of Environment, Health and Naturag•Resources =`s Post Office Box 29535 *2 Raleigh,,North Carolina 27626-0535 Mr. David Yow NC Wildlife.Resources Commission ;Y 57 Hilltop Road Asheville, North Carolina 28803