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Home My WebLink About19940772 Ver 1_Complete File_19940817State 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 APPROVAL of 401 Water Quality Certification Mr. W. Trent Anderson NC DOT P.O. Box 1551 Andrews, N.C. 28901 Dear Mr. Anderson: NIFFMA 4* ig AdAINSIdINONSM10k ??? E3 F= F1 August 23, 1994 Clay County DEM Project # 94772 FILE Gu'V You have our approval to place fill material in 0.009 acres of wetlands or waters for the purpose of road construction at SR 1307, as you described in your application dated 12 August 1994. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Number 2732 or 2735. This certification allows you to use Nationwide Permit Number 14 or General Permit 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 Dorney at 919-733-1786. Sin el reston Howard, Jr. E. Attachment cc: Wilmington District Corps _of Engineers Corps of Engineers Asheville Field Office Asheville DEM Regional Office Mr. John Dorney Central Files 94772.1tr 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 ., T?Q STATE OF NORTH CAROLINA DEPARTMENT OF 1PANSPORTATION JAMES B. HUNT. JR. DIVISION OF HIGHWAYS R. SAMUEL HUNT I I I Goer I:Noii SECRETARY P. O. Box 1551 Andrews, N. C. 28901 August 12, 1994 401 AM 1 704 CLAY COUNTY SR 1307 WATER UAUTY SECT ON Mr. Bob Johnson US Army 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 Transportation is proposing to grade, drain, base, and pave primarily along the existing roadway of. SR 1307, Tusquittee Road, in Clay County. In order to construct this project in accordance with our current secondary road standards and due to the proximity of a trout stream (Tusquittee Creek and tributaries, DEM Class C - Trout Water) and replacement of pipe culverts, we are requesting authorization under Section 404 of the Clean Water Act. 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 conflict with the streams. In addition, I am sending a typical section of the road, cross sections, drawings for pipe culvert replacements, 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 elevations where bedrock is not encountered to minimize impacts to wildlife habitat and allow the existing stream gradients to remain as unchanged as is physically possibly. The best management practices will be used to minimize and control sedimenation 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 l immediately be replaced with better devices. The rock silt screens and other erosion control devices will be in place prior to pipe culvert construction and will remain in place until the project is stabilized. By copy of this letter I am asking Mr. David Yow, North Carolina Wildlife Resources Commission District 9 Environmental Coordinator to comment directly to you concerning the 404 Nationwide Permit Request. A request will be made on this project for a temporary encroachment in the Trout Water Buffer Zone of Tusquitee Creek and I am asking Mr. Yow and Mr. Ed Ingle, Area Roadside Environmental Engineer (NC Department of Transportation) to comment directly to me concerning the Trout Water Buffer Zone Encroachment. Also, by copy of this letter, I am requesting authorization to proceed under Section 401 of the Clean Water Act from the Division of Environmental Management. We would like to begin construction as soon as possible. If further information is required, please advise. Your early review and consideration will be greatly appreciated. Sincerely W. Trent Anderson County Maintenance Engineer WTA/rr Attachments 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. J. B. Setzer, P. E., District Engineer Mr. Eric Galamb, Water Quality Certification Unit, DEM Mr. David Yow, District 9 Environmental Coordinator, NCWRC 4 DF M ID. ACTION ID:_ Nationwide Permit Requested (Provide Nationwide Permit #): 14- JOINT FORM FOR Nationwide permits that require 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) 251-4511 WATER QUALITY PLANNING DIVISION OF ENVIRONMENTAL MANAGEMENT NC DEPARTMENT OF ENVIRONMENT, 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 N.C. DIVISION OF ENVIRONMENTAL MANAGEMENT. PLEASE PRINT. 1. Owners Name: ?oc4-Vx Ccro a Derar?,me?{- o? T?ansr?or-E.a?to? 2. Owners Address: P QOI-- 15 ? Andr^ews, tiAc 281301 3. Owners Phone Number (Home): (Work): C'lo4 2=, -1-4165 4. If Applicable: Agent's name or responsible corporate official, address, phone number: VJ `-reek. Ander--sort 5. Location of work (MUST ATTACH MAP). County: C.10. V Nearest Town or City: Aa j SV I l le 9C.. Specific Location (Include road numbers, landmarks, etc.): SRS (-rU Soo i{ ee R on 6. Name of Closest Stream/River: ?u Sqv ee Cr2ek 7. River Basin: N i uI01 SSee- R v e( 6a?ir? 8. Is this project located in a watershed classified as Trout, SA, HQW, ORW, WS I, or WS II? YES NO [ ] 9. Have any Section 404 permits been previously requested for use on this property? YES [ ] NO bQ 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: ??? ?tGCtr Drained: -- Flooded: - Excavated: Total Impacted: O 0001 Ac,(e. 12. Description of proposed work (Attach PLANS-8 1/2" X 11" drawings only): Tp yJt derv o,r ?ave_ Wig, 130-7 (-77(,o5 FT) k-o meet c urrert-? W-po-C sAandatA-s. 13. Purpose of proposed work: Sarn 14. State reasons why the applicant believes that this cttviv must a carried out in wetlands. Also, note measures taken to minimize wetland impacts. S el_ ca-LGhr Q-,xx <, 15. You are required to contact the U.S. Fish and Wildlife Service (USFWS) and/or National Marine Fisheries Service (NNIFS) 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] N 9J ) RESPONSES FROM THE USFWS AND/OR NMFS SHOULD BE FORWARDED TO CORPSWi?? 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 QCJ RESPONSE FROM THE SHPO SHOULD BE FORWARDED TO CORPS. Wikl? Opp I r- a? ib,,- 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. T). If a stormwater management plan is required for this project, attach,copy. E. What island use of surrounding property? Kura l W0 F. If applicable, what is proposed method of sewage disposal? t,?J . ?, ?u I O 1994--7 Owner's Signature ate L.OCAT ON Vvo Hr t TVNI GA/ ELEV, 3,516 TUSOUITEE `b BALD ??`j A INTAHAL JOHNSON LAID V1 ? ? n \ e U 1]6] ?.e n?! i¢ek r,, "s 1331 y]T Tyy r .y A m ? A STA A-71 4 (o5 cN O CaNSTRUC.TIOI4 ?'?b- \-ANgNG INDIAN MOUNTAIN ELEV. 5,408 r' FOR EST?w\\ Gr"k W `/ STANDING INDIAN WILDLIFE Ee, Q ) ) MANAGEMENT AREA y 0 ? LrQal< ib \ R , r_ Smrbn sv n STa o -? o0 Be61N C-6 V-4ST RU CT {o N CLAY COUNTY ??'s1 35 00 GA. o' m I qj, r ?1 ? l I V / SA??/1II i -> n i C - ?? "? ?? - 7? i 1 ?- .. ? ? ? • 2156 ? " ttBC ? i /'_i--' J? ?j J_ ? ? L / _ )1 _ ? 1 ju P- . U . t 9 t W TUSQUITEE RD. S_R w n- E.O.P. OF SR-1307 0+00 TO 88+75 D.E. 1307 6.922072 T nai_FS Tn RR mnvt+n Y7UTA S(:AI_F DATE ?'?' Aga 6' of 9' X X 3 4 50' 111=50, 01-21-94 off' ti q? 4' f-3' t JOYCE & J.L. CUFFEY RT. 1 BOX 76-A HAYESVILLE, NC 28904 (3) Pl, DON & OMIE D. HOSTELLER RT. I BOX 98 HAYESVILLE, NC 28904 (1) lo'X 3' x2-1- S8 5+00 v 4 +O S t--? V_ 1(n tx 3 0+00. Q n1 ICE Sr 5 (u4 4 _ 18" _CM_P J 1 5+00 (4) HENRY HOSTELLER RT. 1 BOX 99 HAYESVILLE, NC 28904 (2) REPLACE WITH NEW 18" CMP a i o lobo 0 0+00 4+05 PL A 0 10+00 • S7-,4 9+oo acs F&R 101x -3, xz'- 5 8 (3) • 111 10+00 1[O 0 181, cm 3 OC I A 5+00 S ADD 18" Cm-pi (3) 6+90 PL ROBBIE PILCHER 4 P.O. BOX 1048 I ELLAVILLE, GA 31806 no (4) 5+00 15+00 SALEM SHANIN 1219 KNOLL STREET WEST WILLISTON, ND 58801 (5) 15+00 5 0-? 15" CMP (5) 12'X3'x2'-58 PL 12+52 3 cc (3) ST/F Ib+Sp END Flog • 10+0Q 12+52 3 Q d no i 4I 10+00 (3) PL 4 20+00 ' 20+00 I I' I 0 1 V) I STA 17+50 to 19+00 C/D spaced as required (s) it, CUP ---- -- -4 RHtLACH WITH NBW 18• CUP 3 1 I? I I I M 0 U) 15+00 15+00 SITE 1 STA. 22+47 4 25+00 JIM A. & AURELIA W. STONE RT. 1 BOX 87-A f1AYESV I1.1.E, NC 28904 (6) SzTL- s-r.4 2.1+- 50 ENA Fepa 25+00 h <-5 ' 15" 1.8" 4 24"- -CMP -l ADD 15" CMP (6) REPLACE WITH NEW 18" CMP REPLACE WITH NEW 24" CMP 4 ST-4 21+-So 304.rv TSF sr4 2.1+6& cap -rsl> ST4 7,1+00 8-e?ln F? (5) 20+00 21 +no 20+00 (5) SITE 2 STA. 26+79 (6) sT NOTE: STA. 26+85 BEGIN CURB & GUTTER SECTION LT. & RT. :3U+UU 18 CKP o 00 aC i <---5 no d LL 3 CC 18'r --5 Ilt 25+00 3U+UU I'll REPLACE WITH NEW 18" CMP Z (6) ]C REPLACE WITH 24" CMPI Sd",q Z6+ Sr BEGsn? Ts F ?- R 8 - C-CA 2E6Zn1 251 BNFFER ZONE STt} 25+00 . 35+00 s % T a 3 3X z'- ss im ROBERT A NELLIE MULL RT. 1 BOX 97 4 - -- HAYESVILLE, NC 28904 (7) SR-1346 NOTE: STA. 32+50 END CURB A cc CUTTER SECTION-ON.LT. SIDE •a-.?3 PL 30+15 30+00 . (6) 35+00 5T'?t 35+00 EAJA R g p aC d :ST)4 33 +-5o CNO I3uFF?ie ZoNE 3 DD 18, CMP P ALEX DOWELL RT. 1 BOX 91 HAYESVILLLE, NC 28904 (8) q i ? 1h1 R 30+15, PL (6) SITE 3 STA. 33+50 34+00 r ` 34+00 VS I TE 3 1'4\(P ?° r 33+50 45' RT End Buffer Zone 33+00 33+00 BUFFER ZONE x 32+00 32+00 x 31+00 / 31+00 ?Tusquittee Creek 30+00 30+00 r r .' 29+00 29+00 iN EW t ti 28+00 28+00 OLD CE s. s. 27+00 27+QO SITE 2 -+BUFFER ZONE t. 26+00 26+00 Buffer Zone Encroachment 25+50 S.R. 1307 Begin Buffer zone R: (Tusquittee Rd.) 25+00 ' ' Not to scale 25+00 .............. .................................. :.:.:.:.: . . ..... ............... ...:.: .......... .............. .:.:.:.:.:.:.:.:. ... ...:.: :.:.:.:.:.:.:. :.....:.:. :. ........ : .:.:.:.:...... :.:.:.:. .............. :.:.:.:.:.:.:.:.:.:.:.: . ..:.:.:... ..:. .:.:.:.:.:.:.:.. .... ..:.:.:.::............................ :.:.:.:.:.:.:........................... ........... ....................... ....... .... ... ................................................. .........' ...:.:.:.:.:.: ......... .......................... :.:.:...:.:... .": .. ....................... ...................... :.:. ...:. .:.:.:.'.:.:.:.:.: C .:.:.:.:........... ...... :.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:. :. ...... .. .. .. ...... ....:.: ....:... :.:...:.:.:.:.:.: :.:.: .:.:.:.:.:.'.:.:.:.:.:. :.:.:.:.:.:.:.:.:.:.:.:.:.:.... :.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.'. .......... .. .....:.:. .:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:. .............. ....... :.: ..:.' .......... .... .. ... . ..:. ....:...:.....: .:.:.: :.:. ...... .. . . ........ ............. ............................. ......... . .... :.. ...:.: ..... .... .:.: ..• ... . . ... ... ......................................... :.. ............................. . . . . . . . ... . . ............................ ............................ . . .?. ...............:................. . . . . . . . .:. . . . .. ..... .......... . . . 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SITE 4 STA 36+92 Replace existingg 48" CMP with new 48" x SO' CMP 10'x3'x2' SB 1 10'x3'x2' SB SB 3 ?X2 ROck l ?l 1 A H P_ 40+00 10X3#xZ-1519 1811 Cwb - (8) SSTE ; 36+ O 0 5774 36+90 crio r-4k 3 cr- (7) 5 3T1? 3(0*00 8?6.rrJ ??i2 . 35+00 Q Q Z 40+00 REPLACE WITH NEW 18" CMP (8) itRPi.A(`R L1TTH NF47 4R?? f'MP Q STA 35+ 50 SC,,S,J Tg o SrA 35+so r ac TI F 35+00 I GUTTER ON RT, NOTE: STA. 35+00 END CURB & DE v r 45+00 45+00 ul ',STIR yy+0o sce my ?-d F ,srA yy+oo 9"V o TSD c/D spac-d as rqt i r*J (s) (8> e STA q14-01) 13ecrrj F G I; 40+00 40+00 s?-p 50+0o E'Na l=?l? 50+00 C/p sip" 45 revs real (s) 101z3'xz' -58 50+00 (s) I REPLACE WITH NEW yvlt CMD C /P spaced 44 reilAi rej 45+00- 45+00 z P 55+00 X00 •. n. c 18" 55+00 LYNWOOD EARL & MARGARET BATSON RT. 2 BOX 130 CMP PAVO, GA 31778-963 0 0 °on (9) $x 3'x 2'- SB 3 a S?'74 5y+oo 9,0 0 TI F 53+75 h PL (8) 3 GC so A b l S' Cm P' CID /IPAcj QS retuircJ (8) -o- I 50+00 UL I 50+00 r (8) 60+00 I /0? d0 °o o° 00 °° o o° -0.1 55+00 00 ?d ?D 00 o° 3 60+00 i 0! s 0 a o° v° Ob 0° 0° DD 00 00 O ? p C01 0 80 gD,D a' s 55+00 (9) r MARTHA P. HOFFMAN 1564 HATHAWAY DRIVE ROCK HILL, SC 29730 (10) PL (9) r PL ALFRED H. & LORI J. LEWIS RT. 1 BOX 265 HAYESVILLLE, NC 28904 EFFIE DORA & DANIELS R. MULL RT. 1 BOX 82 HAYESVILLE, NC 28904 (8) 70+00 11 70+00 o -s is 67+00 -.a? 65+05 (12) (11) (10) PL Pl. (13) 75+00 o?oADD 181 CMP ?G ur, 0 U>. (12) as 0° G° rU o? Ga a oa D? 00 0 ° 0° ° D D b 70+00 'b? 3 ac 0Q" 70+00 (12) RALPH PLOTT RT. 5 BOX 810 HAYESVILLE, NC 28904 (14) 80+00 80+00 op 00 va 0 KIM RHINEHART P.O. BOX 1047 op HAYESVILLE, NC 28904 c on 0 -? (15) O D J 00 D r---- Q, ?891 CMP 8?? CMP L o o°o - - z 00 PL N D c.o t?STRIr-T10147+65 80 ?D 3 p cr- n0 JOESPH R. CALAFIORE 340 NE 152 ST. N. MIAMI, FL 33162 (13) bb 60 Y 00 00 a" 00 0 0? 0 0 U 00 77+65 '1 75+00 ?p s Q 75+00 PL? (12) EROSION CONTROL DETAILS AND SPECIFICATIONS 245.03 Temporary Silt Ditch „_„ To V1-2 245.05 Temporary Diversion ............................. M VI - 4 893.01 Temporary Silt Fence - „ -------- VI - 6 ..................... --fit---tH 890.05 Temporary Slope Drain with Earth Berm .......... 1=- VI - 8 245.01 Silt Basin Type A .................... yU i.•...•.•.. VI - l ------------ 245.02 Silt Basin Type B .... ......:...... --- VI - 12 892.04 Temporary Rods Silt Check Type-A ----------- VI - 14 895.10 Temporary Rods Silt Check Type--B ;,,;;,.. - ------------ 892-01. vI.16 Temporary Rods Sediment Dam Typ. ___ VI -1s 892.02 Temporary Rock Sediment Dam Type--8 -__--______ VI.20 897.01 Rock Pipe Inlet Protection ;:D ___ VI - 22 894.01 Rods Silt Screen .........•..•...• ............... ....o-..? VI - 24 245.04 Stilling Basin . ........................... ......:::......•...... ? ----- VI - 26 Rock Inlet Protection: 896.01 Type A ... • .................. ...•...:. A U-., .OR -- A) ----- VI - 30 896.02 Type B ............................... B13-- OR -- B ) ----- VI - 32 896.03 Type C ............................... C OR -- C ) ---- VI-34 do a, VI-1 March, 1993 Y L TEMPORQ PY EROSION CONTPOL SYMBG T IWP STONE DITCH CHECK 1 /-POCK. S%L T C HECK D,4/W SIL T BASIN- 8 . , ., ; TEMP SLOPE DRAIN TEMP. SILT D17-CH EA R TH EM 81-INKIWEN 7- 5 / L T FEN CE !BER-GLASS ROVING T 7-5D F G R Proposed Road ..................... _-- Railroad .................... . ... LC Control of :access Line ............... - ;i Slope Stake Line .................... - --'"' - Bridge ............................. -, Culvert ............................. Woods ............................. L7 •?•l' 1 i•('?•?.J or •"•`-- ^.? Telephone or Telegraph Pole .......... ?i:?i s';* -?- 1 s!'imi, '{} ! Tower Pole and Line........... .... ..,,,.....,.._.:.-+--- ..X IS PoNver Pole ................ .. . Easement Line ................. --- l•1??win Limit ......... ..... Guard Rail .................... .. . Sanitary Sewer Line ................ -----'-° 5: Water Line ................. .. ..----? tom- t Gas Line .................. ! Chain Link Fence ..... t :.. -t?------[?-- Woven Wire Fence ..... .. r -0----a- Reaeneratio(I ........... . ..... w y ...`...., , Reforestation .... ` 1. ?•? '' --- empoc•?lry Silt Ditch - s9) Tsrt .. :..... . 4?•""--'"tlr-------?i,` S Tec»porarycilt Fence ..........:.. . Temporary Slope Drain Brush Liarriel ........................ f&"°", Silt Clieck Dam Type A ............... n ALA Silt Check Dam 'Iwe B ............ . Silt Bh8ln I?pe A ...............: ... --+ Silt Basin Type B ................: .. Rock Silt Check Dam ................. Y M arth 13crm .. ................... -.a" .:.. "ft- ? *w-+ w..-,...._. Tr.rtin, Stnne Hitch Check . , , , , rk TEMPORARY SILT DITCH: TSD A temporary silt ditch shall be used in place of silt fence in many situations. Temporary silt ditches shall be used at the toe of fill slopes to divert runoff into sediment basins, temporary rock sediment dams, temporary rock silt checks and/or other sedimentation control measures. Temporary silt ditches are approximately 1 ft. deep, 2:1 side slopes with an optional earth berm. AREAS OF USE: • Toe of fill slopes where fill exceeds 3 ft in vertical height. • Along streams to intercept flow and/or divert to a controlled outlet. VI-2 March, 1993 ? N Q pIM z @ Ciln 2Iv N I? z U O IIJ W I- w ?' TC / i a , L < U z w 0 F- >- - TTZ W ? zz? 0 W 0 _ ? ? r o Q / Q ? TFj Q ? I o? _ G F o cri a - Q ¢ ? o CO C a w f- C n F ' o m I??Q A i VI-3 March, 1993 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: Mated 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 VI-6 March, 1993 a I `? C 33 ?- o ?. 2 x3 X m m ZD -i- i WX ?z J W ¢ U C7 Q ?o W O N ¢m LLI p J _O Q Z ¢ Z Xm: (n w O O Q ? C7 0 - CIO O OD aJ CL -a O 2 ?- Ln U_ W CO Q LL. Cr w J LL. w O 3 W 1- O Z Z J J LL Cr o LL X V O~ ¢ ui J Z O LL. Q U n h M ?J II I 01 ° - a a I I I ? ) O LU ns O 0 0 Z -- -I I I mm ( ) '?' z ---I I I • Q LL. -- ------- - --- ------?_ O F- -------- ----- ------ o0 Q ?-) z z wW W3 N ¢ CC w 1-- 2 N O w z O LL) M LL. z Z 0 Z x F-. ¢ o va wW <r M CD L L <r U) 11 L J F Z LU Q m J O Wu) Q F' W w LLI O r) cD 2 2 J} O m 2 LLI W ¢ J 3 Q J z J wa U) a LLJ a 2 Q N LL. O ? w Q Co Co W u O= ~ 2 0 W > - f' N W J O D Co O WO >. Co J H Q = Q w LL 3 Q CD a 0 CD Z UJ W LO O O Ui 2 Z F- ~ O Z O O W .-. J C7 Z W Q F- (n CL Z O LLJ OJ LL) -) LLJ ?JCoUJL = w OM 3 3 0 Q LL. M 0 2 W~ 0 0 3 0 Z Li ~ O d li ¢ .. V) O LL. O 2 Q a VI-7 March, 1993 z 3 C 0 w 0 z a 0 w Ln w o z e? OD LLJ U w LL (or) a? W ". O O OOM .a a- z W 07 H LW C^ ~ O ?o Q ? Z Q (oo O .0c C N T SILT BASIN TYPE-B: 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) VI-12 March, 1993 41 I i W - 3 - li ii? ? i?;°•j ?II Il;i? ? is ? t t - I !-. I ijll S III ii =_ i -- s - lillll III! 7 7 = f ,- IIIII N Q N 0 - MITI x IIIII J a II! I I-,;, i!I s -- Till) N x _ III!' 3 I!!II o = - o - I!III a iilll Lo 111111 Ili l m ?i Z O C w J w O-Cli z!m Flv IN W w a. i-- 7 CA Z ^a"" .-r O a r , -r J z m TTY J QQca ... O O O `G Q Q f- o I VI-13 March, 1993 W ? TEMPORARY ROCK SILT CHECK TYPE-B: 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. x.K VI-16 March, 1993 6 U ~ W O n- 0 J J ¢ LO O 2 = U O U f- LL.j O a o Cr 4a LLJ W (A_ F- > O LL LL CL O O O F- w w zz D O C7 J 2 i z 'L 3 W > z Z ? z Q J 11 7•% z U h-- LLI (n W 0> U 2 U H I' 0 i 3 O I; W ¢ H- zo .-, LL O F- > N LLI ¢ !' W i, 0 J LL z O s Cfl W Q M L ~ Q ~ z i Q Z O H d O F- 1=? z ~ J r z ! W Q s -- (Jo CD T7 II Cf) 0 ` CD W Cr U Q 1J zlo' :.I o! z; L) w o? Q US VI-17 m U W a Z JCr -j F- ?- (n0=OZZ mCn000 W H f-- -+ mzoW (n O Z 2 m 0 JU<r -WIz= QZ^F-mW^ 20- ¢Wm- W-m UOm Co. CrLL- W O O m ZmWL.L12WW O W (n Z CO Wes- <a:0 0a F- cnCr- J-? - J O OUQZ(nU Z W- -a-=)-C March, 1993 N• ¢ 0 i m E-:0' Ul I m m W m U W U ?Z CD E- c::: 0om W .a >- zz? ? W?_ Q ?A m H L.L.I O z Q o a A N ROCK SILT SCREEN: J 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) VI-24 March, 1993 SL . • k 4: s 3 a W w ¢ O w a m J I m LL O a 0 1 Z Q CD LL O 0- 0 3 W Z_ h- CD Z 0 LL ...7 w ?C4 y QE'wz w ?. z z QZE-- ?¢ oto Q? x Z E- a o E- E" a Co r? Ld W p d d w O - U Z w U m w md W o Z O Z? a a oOCgOC w W= W .a a E"V) T14 ¢ F cn a ? E- wa cnw?C]E-O 0 E-W? E- a Z? OZ W W Ap ?i ?? ?J'lf c~? U LLJ d0¢ dZ XU z UOt/? OE-oQOZ >>n?, coT ? ?- N ?D v E"zGaw E- zw U) ? ., ?? NO wE- ° F W c)Z.aroUF ?w? GGW W ZE W ; m¢ fL.avm0 m cvL Cr U ?E-a -7w fs7 E. V) F --a E. q wdwax f!1 w a Z U E-- ¢ . 7 E. E-? ¢ Ji Z dzz p U) ¢o04 Z?g ¢ ? O W Ox00 Z mumuI- ZE-•oxo w " V U?mr=.O.U 0 Q = ° 0 a zZ w C?6 I Q,v F a z W W CL U (n ?a Cn ?? UZ C7 ? FT U x? Oz ;.^ 0 u - WWI ? Fq Q F 0 ? Q Co EE . Fr-I]0 In VI-25 March, 1993 4L a ?a WIPE OUTLET ENERGY DISSIPATOR: ii !•• !••4p 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. VI-34 March, 1993 ?. •YY: }J tiytt L- O C >b '? -'111= ci'? i?, 0 o C" c v Q .t N L O Cz 0C Q d) a .A• /) ? /) C .SL ° a z a i C 't W w 0'. Diu iru? .n ? Q? 'w' C7 ' 0 0) C ri\ W b ^ i..L (1)75 G 1 1. .. Ot 0 n,U 4u Cl cm 0 o m _ 4. `. 'A jZ 4-4 ' a ?? d _' != 3 a n n a3Av? • 1 . VI-35 March, 1993