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Home My WebLink About20080792 Ver 1_Application_20080509d „a STATF ° STATE OF NORTH CAROLINA n?h? 20p8 B DEPARTMENT OF TRANSPORTATION MICHAEL F. EASLEY GOVERNOR April 21, 2008 Mr. David K. Baker, NCDOT Regulatory Project Manager U.S. Army Corps of Engineers 151 Patton Avenue, Room 208 Asheville, NC 28801-2714 Subject: Nationwide 14 Permit Application SR 1521-A, Mountain Grove Road LYNDO TIPPETT SECRETARY 080792 Macon County State Project No. 14C.056106 (DWQ Minor Permit Fee $200) Dear Mr. Lund: The North Carolina Department of Transportation (NCDOT) is going to install new pipes on SR 1521-A, Mountain Grove Rd, in Macon County. The proposed improvements of SR 1521-A have been identified as necessary maintenance and safety improvements. Please note that SR 1521-A and SRI 521-B have separate station numbers. See enclosed straight-line diagrams for station details. Funds have been allocated for this project, and NCDOT would like to perform these activities sometime during the 2008 and 2009 paving seasons. I am sending a pipe installation detail as well as a marked county map and USGS quad map. We propose to install new culverts slightly below the existing streambed elevations where bedrock is not encountered to minimize impacts to aquatic habitats and allow the existing stream gradients to remain as unchanged as physically possible. No threatened or endangered species are known to be present in or near the project area; therefore, no significant impacts are anticipated from project construction. If the State Historic Preservation Office (SHPO) and the Office of State Archaeology determines that further investigations are required, NCDOT will conduct the appropriate site investigations and obtain compliance from SHPO prior to project construction. 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 is being effectively controlled. If the planned devices are not functioning as intended, they will be immediately 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. Andrews District Office 191 Robbinsville Road, Andrews, N. C. 28901 Phone: (828) 321-4105 Fax: (828) 321-3228 Impacts to Waters of the United States In order to construct the project in accordance with our current secondary road standards, it will be necessary to impact waters of the United States in the Little Tennessee River Basin. Site 1 and Site 2 will not be replaced. Listed below is a summary of the proposed impacts. Site No. Existing Proposed Net Impacts Station Condition Condition Site 3 50' x 24" CMP 50' x 24" None BCCSP Site 4 30'x 24" CMP 30' x 24" 10' BCCSP Site 5 25'x 48" CMP 40' x 48" 15' BCCSP Site 6 25' x 18" CMP 40' x 24" 15' BCCSP Site 7 30'x 18" CMP 40' x 24" 10' BCCSP Site 8 30'x 18" CMP 55' x 24" 25' BCCSP Site 9 Unknown 45' x 24" 10' length of 18" BCCSP CMP Site 10 42'x 24" CMP 55' x 36" 13' BCCSP Site 11 50'x 24" CMP 50' x 36" None BCCSP 98 linear feet total Permits Requested NCDOT is hereby requesting authorization under Section 404 of the Clean Water Act to proceed with the construction project outlined above. By copy of this letter, I am asking Mr. David McHenry, Mountain Region Coordinator, of the North Carolina Wildlife Resources Commission (NCWRC) to comment directly to you concerning the 404 Nationwide Permit request. Also, by copy of this letter, I am requesting authorization under Section 401 of the Clean Water Act from the North Carolina Department of Environment and Natural Resources (DENR), Division of Water Quality (DWQ). In addition, I am asking Mr. McHenry and Mr. Ed Ingle, (NCDOT) to comment directly to me concerning this permit request. If you have any questions or need additional information, please contact me at (828) 321-4105. Your early review and consideration will be greatly appreciated. Sincerely, Joshua B. Deyton, P.E. County Maintenance Engineer cc: Mr. John Hennessy, DWQ, DENR, Raleigh (seven copies) Mr. Mike Parker, DWQ, DENR, Asheville Mr. David McHenry, Mountain Region Coordinator, NCWRC Mr. J.B. Setzer, P.E., Division Engineer, NCDOT Mr. Mark Davis, Division Environmental Officer, NCDOT Mr. E. L. Ingle, Roadside Environmental Field Operations Engineer, NCDOT SR 1521 B, Onion Mountain Rd. Vicinity Map I 152 814 1532 V ? 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IAYAII CREST IIOGIACK MIN. _rrAP GROUND ^7PNCK /116 ?6 .. EV. 1,100 X917 E Y llaP Ida '7 `3 ? ?'?'' / / ELEV. 11271 till 1311 t c) o MACON COUNTY KInDTN r-,&PnIINA bF WAT?9 QG Pre-Construction Notification (PCN) Application Form For Section 404 and/or Section 10 Nationwide, Regional and General Permits, Section 401 General Water Quality Certifications, and Riparian Buffer and Watershed Buffer Rules SR 1521 - A, Mountain Grove Rd. ?wef K?txra? ??,?. if ?t m Q 9?l SP XfF'yr OF TR aMS?'c"k NCDOT Division 14, District III Prepared by: Joshua B. Deyton, P.E. County Maintenance Engineer Clay and Macon Counties Page 1 of 10 Office Use Only: Form Version March 05 USACE Action ID No. DWQ No. Q kit any panicuiar item is not appacante to tnts project, please enter "Not Applicable" or "N/A".) 1. Processing 1. Check all of the approval(s) requested for this project: ® Section 404 Permit ? Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ ® 401 Water Quality Certification ? Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: NW 14 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ? 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Concern (see the top of page 2 for further details), check here: ? II. Applicant Information Owner/Applicant Information Name: North Carolina Department of Transportation Mailing Address: 220 Windy Gap Rd. Franklin, NC 28734 Telephone Number: 828-524-2517 Fax Number: 828-349-9447 E-mail Address: ibdeyton@dot.state.nc.us 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: Joshua B. Denton P.E. Company Affiliation: County Maintenance Engineer Mailing Address: (same as above) Telephone Number: Fax Number: E-mail Address: Page 2 of 10 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: SR 1521 - A, Mountain Grove Rd. SR 1521-B Onion Mtn. Rd. 2. T.I.P. Project Number or State Project Number (NCDOT Only): 140.056106 3. Property Identification Number (Tax PIN): 4. Location County: Macon Nearest Town: Franklin Subdivision name (include phase/lot number): N/A Directions to site (include road numbers/names, landmarks, etc.): From Franklin take US 64 East towards Highlands 2.02 miles. Turn left onto SR 1001 Ellijay Rd Travel 7.99 miles and turn left onto SR 1521 A Mountain Grove Rd. 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) See attached sheet. 6. Property size (acres): 7. Name of nearest receiving body of water: Laurel Creek (Stream ID #• 2-21-9 Class C) Falls Branch (Stream ID #: 2-21-23-2-2 Class C) 8. River Basin: Little Tennessee (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: Forest, residential Page 3 of 10 10. Describe the overall project in detail, including the type of equipment to be used: Widening, paving, and installation of new pipes using a hydraulic excavator, backhoe loader, dozer, wheel loader, motor grader, dump trucks, and hand tools. 11. Explain the purpose of the proposed work: Widen and resurface existing paved roadway for the purpose of safety improvements and scheduled maintenance. IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. N/A V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. None anticipated VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. 1. Provide a written description of the proposed impacts: Installation of new pipes. Page 4 of 10 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding- Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain ( es/no) Distance to Nearest Stream (linear feet) Area of Impact (acres) Total Wetland Impact (acres) 3. List the total acreage (estimated) of all existing wetlands on the property: N/A 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreage. multiply length X width. then divide by 44-560 _ Stream Impact Number (indicate on ma) Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Impact Impact Length (linear feet) Area of Impact (acres) 3 UT to Falls Branch Culvert P I' None None 4 UT to Falls Branch Culvert P 2' 10' .02 5 UT to Falls Branch Culvert P 4' 15' .02 6 UT to Falls Branch Culvert P 1' 15' .02 7 UT to Falls Branch Culvert P 2' 10' .02 8 UT to Falls Branch Culvert P 1' 25' .02 9 UT to Falls Branch Culvert P 1' 10' .02 10 UT to Ellijay Creek Culvert P 3' 13' .02 11 UT to Ellijay Creek Culvert P 3' None None Total Stream Impact (by length and acreage) 98' 0.14 5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to fill. excavation. dredging. flooding_ drainage_ hnikhenrlc. etc. Open Water Impact Name of Waterbody Type of Waterbody Area of Site Number (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact (indicate on ma) ocean, etc.) (acres) Page 5 of 10 Total Open Water Impact (acres) 6. List th e cumulative impact to all Waters of the U.S. resulting from the project: Stream Impact (acres): Wetland Impact (acres): Open Water Impact (acres): Total Impact to Waters of the U.S. (acres) Total Stream Impact (linear feet): 7. Isolated Waters Do any isolated waters exist on the property? ? Yes ? No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. 8. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Current land use in the vicinity of the pond: Size of watershed draining to pond: Expected pond surface area: VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. Roadway features were designed not to exceed North Carolina's minimum secondM roadway standards. Therefore, impacts were minimized to the extent possible including Pipe lengths VIII. Mitigation Page 6 of 10 DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetlands/strmgide.html. 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http://h2o.enr.state.nc.us/wrp/l*ndex.btm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): Amount of buffer mitigation requested (square feet): N/A Page 7 of 10 Amount of Riparian wetland mitigation requested (acres): N/A Amount of Non-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ® No ? 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify----___________)? Yes ? No 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. Zone* Impact (square feet) Multiplier Required Mitigation 1 3 (2 for Catawba) 2 1.5 Total zone t extenus out " reef perpenaicuiar from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Page 8 of 10 Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. The existing paved roadway acts as an impervious surface. The roadway surface will be approximately 20% of the right-of-way area. Stormwater will be diverted through settling basins lined with filtering stone or grass lined buffers prior to enterinp, streams XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. The existing paved roadway acts as an impervious surface. The roadway surface will be approximately 20% of the right-of-way area Stormwater will be diverted through settling basins lined with filtering stone or grass lined buffers prior to enterinjZ streams. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? Yes ? No XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: This project is intended to improve an existing road with no anticipated impact to development XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on Page 9 of 10 work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). N/A Applicant/Agent's Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 10 of 10 Site Coordinates for SR 1521-A Average Stream Width Before Impact Impact Stream Impact Number Stream Type of Impact Perennial or Length Site Coordinates (indicate on map) Name Intermittent? (linear feet) 3 UT to Falls Culvert P 1' None 35.2264 N, Branch 83.2664 W UT to Falls 35.2264N, 4 Culvert P 2' 10' 83.2672 W Brach 5 s UT to Culvert P 4' 15' 35.2256 N, Branch 83.2692 W 6 UT to Falls Culvert P 15' 35.2258 N, Branch 1 83.2717 W 7 UT to Falls Culvert P ' 10' 35.2253 N, Branch 2 83.2733 W 8 UT to Falls Culvert P ' 25' 35.2236 N, Branch 1 83.2708 W 9 UT to Falls Culvert P ' 10' 35.2222 N, Branch 1 83.2736 W UT to ' ' 35.2228 N, 10 Ellijay Culvert P 3 13 83.2789 W Creek UT to 3 35.2189 N 11 Ellijay Culvert P None Creek 83.2831 W Total Stream Impact (by length and acreage) 98' COUNTY= _ MACON CPS: 35 0 13 35 DEC.35.226 ttt? SR. NO. 1 521 -A _ RD. NAIiE: _MT. GROVE RD _ 83 0 15 59 ?t W. DEC.83.266 PIPE STA-. 42+00 SITE No. 3 NOTE• . - SITE # 1 & SITE # 2 OLD NOT TO BE DISTURBED CL zlole T S F & R. B .._..._->S ti i RIP RAP ENDWALL i rill. EW CL CHECK DAMS AS REO. ROCK SEDIMENT DAM TYPE B 15'X3'X2' SPRING HEAD 50' SPRING BOX BR. r I i RIP RAP HEADWAL- F CHECK DAMS AS REO. TEMP.SILT FENCE & ROCK BERM SILT BASIN TYPE 8 1 2' X3' X2' I I I I I I ' ( I I I I I I I I i I I I I I l i t l ? 1 It 1 1 1 1 1 1 1 1 1 1 1 1 I I I 1 1 1 1- I I i l I I I I 1 1 .1 '11111T I I I I I I 1 1 1 1 ill II 1 1 1 1 1 1 1 1 ' I I I I I I I I l I J i l l I I I I ( I I I I I I I I ' 11 I I l l l l t l l l l l l l l l l l l l i l ( I I I I I I I I I I I I I 1 I IIIIII II=11 I II II IIII 1.1111111 I II I t 1 III II I 1 1 1 1 1 1 1 t. Y?I I l u L. . 1 _ L 1 I I I I I I 1 1 1 1 1 1 I I I I I I I I I I II 11111111 I III III I 111111 11111111111111 111111111 1111 I I I I I I I I I I I I 1 1 I I I I' I I I I I I I I I 1 1 1 1 1 1 1 1 1 1 1 1 1 I I G I I i l l l l l l I I I I I I I I I I I I I 1 1 1 1 1 1 I ill I 1 1 1 1 1 1! 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I?? 1 1 1 ? 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 I COUNTY: _..MAS'ON CPS: 35 ° 13, 35 DEC.35.226 SR. N0. SR-1 521 -A RD. NAME: MT. GROVE RD. 83 0 16 02 ?t W. DEC.83.267 PIPE STA-. 4'A4-1n SITE No. 4 OLD CL NORTH ?C ,5'rv NEW CL TEMP. SILT - CHECK DAMS AS RFO.., FENCE & ------- ROCK BERM ` es? 15 k ROCK SEDIMENT DAM 1 TYPE B 15X3X2 RIP RAP ENDWALL I _?- - ?-f-- BR. 3 " 2' BR. ?^ ® RIP RAP HEADWALL I CHECK DAMS AS REO. TSF & R.B.! S .B. TYPE Ban y K 10'x3''x2' 1 1 1 1 1 1 i l I I 1 t I I I 1 1 111 1 I I I I ?I I I I I ?I I I 1 1 I 1 1 1 1 1 1 I I 1 1 I I I I I 1 1 1 ? I I I I I( 1 I I I t I' I I 1 1 1 1 1 1 1 I I I I I I I I I I ' 1 1 1 1 1 1 1 1 1 1 t l l l l l I i l l l l l l l l l ' I I I I I l l l l l l l l l l l l l l t I I I I I I I I I I I I I I I I I I I I I 1 1 1 1 1 t l I 1 I. I I 11 I I I 1 I 1 1 1 I I I It I I I I ( I V I I I i ll I 1 1 1 1 1 I I I I I I I I I I I ( I I I I I I I I I I I I I I I I I I I I I I I I I 1 4' •I I I I I I I I I I I I I I I I I I I I I I I I I I I II I I ' I I I i I I 1 1 1 1 1 1 1 1 1 i I I I I I I I I I I 1 1 1 I II I i I I I I I HI I ' I 1 I I I - -I I - 1 } - - I 11 I I 1 1 I I I I I ' I I I I I I I 11 I 1 I I I I I I I I t I I I ? I I I J i ll M I I I I I 1 1 1 I J i l l I I I I 4 - 1 - H (T ) - I TIH + 1 4 - 1 -H i 1 - 1 1 1 1 ? I I I I I I I I 1 I I I J i ll I I I I I I I I ( I I I It I I I IIII I 1 1 J -- L j ! J il l I I I I I t I I' I I 1 1 I 1 I I i I I I I I I I I' 1 1 I I I I I I I I' I I t I I 1 1 1 1 1 1 1 1 1 111 1 I• I 1 1 1 1 1 1 1 I I I I I I I I I I 1 1 1 1 1 1 1 1 I I I I' I I 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 -7 I I I 1 1: I I i l 1 1 1 1 I I I I I I I' COUNTY:_ N CON GP.? : 35 ° 13' 32 11 DEC. 35. 226 SR. N0. 1 521 -A ----- - RD- NA'fE = MOUNTAIN GROVE RD, _ 83') 16 1 09 I t W. DEC. 8 3. 2 6 9 PIPE STA. 48+25 SITE Ito. 5 MAG . OLD ^70RTH CL SILT F ENCE & NEW CL ROCK B ERMS f ? CHECK DAMS / SPACE AS REO. F I } , I t 1? / RIP RAP /7' 1' RSD TYPE B END WALL I 15X 3X21 -?- 4 RTP RAP 4 1 HEAD WALL 25 X4 8 EXT. 25' X48" CMP SILT FENCE 1 REPLACE WITH & i 40'X48" CMP ROCK BERMS CHECK DAMS AS REQ. I? SILT BASIN TYPE B 10X3X2 I I I I I I I 1 1 1 1 1 1 1 j-I j 1 I 1 I I I I r I j I I l j 1 1 1 1 I 1 I I I I I I I I _ - - ` - - - _ - 1 - T - 1 I I I ' - - ' - - I I I I 1 ,1 1. u I 1111 til - I f I - ? - - - - - - - - - - - -_ - L l - I I i 1 _ -I 1 - i i - 1 1 i - 1 i 1- i=ryry 1 -? I I i_ 1= l f 1T ? I { _ _ - I 1 V I I I =1 - - - - - -_ I 1? -1- -j_I - - - - - -- - 1 - 1 I I - - - ' - - - - - - ' - - 1 - - ' - - ' _ 0 1 I _ I - - - - - - - - - - - - - - - _ - - - - - - - - -1- - - - - - - - - - - - "it - - t y? l?nLe _ _ _ _ - P" P X L J I - - ,T - - - - I I I - _ - - I - - - - - T - - - - - l i -I i T] i 1 F - I-1 -i -T - - ice - - I I-1 i -T -1 ? - - _ f I I I I I l i I I 1 I - - - I I I I T 1 -T-- I i i -i-T-i -? T I I I I I I I I I I I I 1 1 1 1 1" 1 1 1 1 1 1 I T I 1 1 1 I I I- j- ?- I-i- I_ - I-----?-----?-?-? ? I I -. I I I I 1 1 I I I I 1 -? - - C011NTY:MACON GPS: 35° 13 1 33 11 N. DEC. 35. 226 SR. N0. 1 521 -A RD- NAME:MDUNTTAN ,ROVE Rn_ 16 1.8 W- DEC. 83. 272 PIPE STA'. 52+20 SITE No. b OLD SILT BASIN &-•?? TYPE B NEW 1 0X3X21 CL? CHECK ' DAME AS REO. ROCK SED. DAM -?• 15X3X2 TEMP. SILT FENCE ROCK BERMS HEADRWALL E 1 ' 251 r- -- , REPLACE WITH 40'X24" C'MP RIP RAP END WALL f CHECK TAMS AS REO. g I f it TEMP. SILT FENCE & ..r f ROCK BERMS ! SILT BASIN ?• ?, TYPE B 10X3X2 r 1 1 1 1 1 1 i l l l l l l i t 1 l l 1 1 1 1 1 1 I I I I I 1 1 1 1 1 1 1 1 I ? 1 1 1 1 1 1 1 I I I i l l l l l l 1 1 1 1 1 1 1 i I I I I I I I I I t I l l l l l l l l l l l l l 1 1 1 1 I I I I 1 1 1 1 1 1 1 I I I I I I I i l i l I I I ' I l l I I I' I l l l l l l l l 1 1 1 1 1 1 1 1 1 1 I I I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 - I I I I I I"I_ nlI t i fn Tim bt r III I I I I I I I I I I 1 1 1 1 1 1 1 1 1 1 I I I I I I . I 71 7 -11 I 1 1 1 1 1 I I I I ' I I I I I. I I I I 1 1 1 I I I 1 1 I I I I I I I I I I I I I I I 1 I I I I I I=1 I 1 I i t 1 1 I I I I 1 1 1 1 I I I I I 1 1 1 I I I I I I I t I l I i l l ' 1 1 1 1 1 I I 1 1 1 1 1 11 I 1 1 1 1 1 1 1 I I I I I I I I I I 1 I I I I I I I I I I I I I I I t I I i I I I I I I I I I - I I I 1 I I I I I I I r I I - 1 - H I T -; 1_ - - 14 . I I I I I I i l i I t 1 t a 3 U 2 1 1 I I I I 1 I . I I - 7 - - - - - I I I I I I I I I t I I I I I I 1 1 i t I I I I I I i I I I I 1 I I I I I 1111 I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I 1 I I I I I I t l I 1 I I I' I i l I I I I I I I 1 1 I 1 1 I I I I I I I I I I I I 1 1 1 1 1 1 1 I I 1 1 1 1 1 i l ( i l l l l l l I I I 1 1 1 1'1! 1 1 1 1 1 1 1• I I I I I I 1 I? I 1 1 1 ? 1 1 I I I : I I I 1 1 1 1 1 1 1 I I I 1 I' COUNTY:- A?,CON SR- No. 1 521 -A ('Ps: 35 ° 131 31 II DEC.35.225 RD. NAME: MT. GROVE RD. PIPE STA?.? ,+90 _ " 83 0 16 2.4. W. DEC. 83.273 _ SITE No. 7 MA SILT BASIN TYPE B OCL ?\ 1OX3X2 `\ a ROCK SED. DAM NCL 15X3X2 . SILT \ FENCE i \ ?• & RIP RAP ROCK BERMS HEADWALL 0- 21 f CHECK DASM AS REQ. USE STACKED GABIAN' ?I REPLACE BASKETS FOR SHOULDER WITH & ENDWALL k 40'X24" CMP TEMP. SILT FENCE & SILT BASIN ROCK BERMS t TYPE B 10X3X2 _ I I I I I I I I I I I I ill I I i r_ 1 r I , I 1 I , I ? i , , _ , 1 I I 1-1- ? I 1 I I I 1 1 I I I I I I I L I r ? - - - - - - - { - - - - - - - - _ T- - -T - 1- - - I i I I I 1 ? II I -1- {-i - t- {- - 1 - - - _ - - - - - - - - - - - 1- ? . i_ -i?_ {- •- - - - - -f-- - - - - - I I - 1- - - - - - - - - - - ? - - - - - 1- - , T C IL IU A _ - - - - .-? - - - - - - - - - - - - - - - - - - i T - - - - - - - - ? _ TI m Ivo f = _ - _ _ - - ? ? - - - - k FI T - - - - - - - - - - _ - 1 Ti- - - - - - - - - T I I i I I I - - - - - I - A } - I p - - - i - -1 I - - - - - - - - - - - - - - - - - - 1 - - I I I i - - - - - - - - - - - - _ . - - - - 1 1 1 T „ I - - - - _ - - - _ - - - _ 11 I -T - rt ?T - - I I I I I I I I I i I I TT ? 1 _1_ - - _ - _ I I I- I I 1-f 1 T 1 I I I I I I 1 1 1 1 I I I I 1 i ? ? ? I I I I I I 1 ? I I I I ? ? ? ? r - , I I ? I r I I- I I I I I 1 I I I I 1 I ? 5?f c6uNTY:-_ MACON __MACON c l' „` 35° 13 SR. 140. 1521-A 20 2i-DEC. 35.222 RD. NAHE:_ MT.GROVE 83 16 PIPE 79+45 25 U. DEC. 83.274 SITE No. q SILT BASIN _17X3%2' O? "G TE `lY ' CHECK DAMS AS REO. SILT FENCE \ NEW & CL ROCK BERMS \ OLD y .? CL ? ? ROCK SED .?? DAM 15'X3X26 REPLACE WITH 45'X24" CMP ROCK ?.?_BRANCH SPRING ..,.?-.?--"'- i NOTE: RIP 'RAP ENDW&LL '""?`* HEAD NO WATER LOCATED CANNOT LOCATE 11 y OUTLET END PIPE SILT FENCE PIPE MUST BE SEP & & WATER RUNNING ROCK BERMS ROCK SEAM UNDER ROAD BEAD. f RIP RAP HEADWALL ILT BASIN Y B 10'X 3'X2' H A 1 1, i ? ? 1 l RI It ? I - I !- t I„I I I I, I i rl I I i l I - ?i-?- - 1 - - 1 - I - I- I-'-!-11--I I I I I I I i - ! ? i I I i ? ' 1 ?- _ ' I-r_- 1 i _I I I_1 ? I- ? - - 17? I I 1 I- ini, I - - - - - - - - - - - - - - 7_ ' I ? r I - r - # # _ 1 l - - - - - - I - - _1 _ - - - ' 1 t - - - - - - - _ i T - - IT- - - _ _ _ _ - - - z P s - - - - - - - - - - - -- - - - - - i m - - ? ' - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - I - - - - - ± - - - - - - 4 - '- - - ? - - = T - T ? _ I I I I I I I 1 I 1 1 I I I I I i 1 I T 1 T t ? I-I - - -I ?1 I i-i - F_I i 1-1 _17- 7 1 I 1 11 I 1 I 1 ' I I I 1 I 1 I I I t I ss r COUNTY:_ ?IAOC'N GPS: 35 ° 131 221 1[_ DEC. 35.223 SR. No. 1 521 -A _ RD. NAME: MT.GROVE RD. ? - 83 " 16' 44 W DEC. 83.279 PIPE STA-. 94+10 . SITE No. 10 MA, ..?' SILT BASIN „NpR'n TYPE B D o 1 0' X3' X2' NE - r ?-- - HECK DAMS -? AS -REQ. RIP RAP SILT FENCE h. HEAD WALL ROCK BERMS cr- PEE ENDWALL ROCK SED. DAM eti °° 1 5' X3' X2' REPLACE WITH 55OX 36" CMP 1 TEMP. SILT ? , FENCE & f ROCK BERMS ,-CHECK DAMS AS REQ. SILT BASIN TYPE B ? 10'X3'X2' _ I ? I i I i i i ? I i i I I l i I I I l T- I - - - {- f- I L 1 i - - 1 (- 1 I= 1 I= = I ?- I l= ;l - - I i- ,= i i- i= i 1- i_ i i- 1 I 1i I 1 ? i i i ? , i ? t i-i i I I ? - _, ? i- - i {- ? ,- l! {- 1 ,- ! 1 i? I-1_ 1 - I ? I - I _ I I 1 1 1 1 I 1 1 I ? I 1 1 I I I I I l l r = t i ? - - - - - - _ I I- 1 - Z ? = - - - - - - - - - - - - - - -- - --- - - - - } - ? ? _ I I I I I T I I I T I I I T I T T ' 7 I _ I - I I I T - - - - - - - - _ ? - - -- - - - - - - - - - ? _ I I - - _ - - I - t ?-{ - - -. - - - - - - -{- - - - ? _ -- - _ _ - - - - - I - - - - - - - - - - - -{ _ T I I - - _ - - - - - - - I - - - - - - - - - - - - - - - --- - - - - - - --- - - - - - - - - - ?w I - - - - - - - - - - - - - - - - - - - - -t- - - - - - - -- - - - - - - --- - - - - - - t6l w mc - - I po - - - - - _ T - - - _ - - _ - - - - - - - - ?- - _ - - - ?- - - - - - - - - - - -- - - - - - - - - - r (( T T T ?l I I I - - - - -+- - - - - - I i -- { - ? - _ P i t a ps - - - - - - - - - - - - - I _ I _ _ I I I I I - - I 1 I I I 1 - 1 I I -T I I I f I I I I -T -T ?- I 1 7 4 -1 1 1 1 1 1 I I I I I I I I 7 T I I I I 77-1 -I i I I I I I I ? I 1 1 1 1 i i COUNTY:_ MACON - 35o 13 06' CI'S ' DEC. 35.21 83 1521 521 -A SR. NO. RD. NAME: MT. GROVE 83" 16 59 u. DEC. 83.2831 PIPE STA'. 106+25 _ SITE No. 11 ? OLD NEW G' SILT-BASIN, 4?,o TYPE B CL 1 0 "X3' X2' SILT FENCE r CHECK DAMS & AS REQ. ROCK BERMS _c ROCK SED. PRECAST ENDWALL ® AM TYPE B 10'X3'X2' Sp ' x2g,, PRECAST ---'- HE ADW ALL REPLA CE WITH " B CMP 5.0: ' X36 R 3 ?., .-.. ROCK SED. L \ SILT FENCE __ DAM TYPE B & 10'X3'X2' ROCK BERMS ? . SILT BASIN TYPE B 10'X3'X2' -' -? 1 1 1 I -? 'I 1 • ? 1 1 1 I ? 1 1 r - - I - I r 1 -! _I _ CI = =f I _r _ I -i - I I ri- I r? I ? I -i I ? -?- I? ? ?=? ?-i -iil 1 - 1 r I ? -I _? 1-L ? I I ? I - I I ?I I I I I I ? I I 1 - f - - - _ - - _ I I I * J. I E P - t ? - - - - - - - - - - - - - 1 - I -? 1 l -- I - 1 , - i -j - i i -1-I -- I . 7 1 - -1-- ! - - -1 ? - I =? ? ? - - - }} 1 I l - t I I t - - - - - ` - l - - I 1 I I 11 I I T I 1 I i i I ' f 1 I 1 ?- _ - - - - - - - - =I 4 - - - - I H - _ - - - - - - - - - - - - - - -f = - - T -- - - - - -}- - - - - - - - - - - - - - -I - - - - - - - - - - - - - - 1 - - - - - - - - - - - - - - i i - - - - - - - - - - - - - -- - - - - - - - 1 - - - - - - - - - r - - - - -- - - - - - - ? i- - - - - - - - { - - - - - - - - - - - - - - I - - - - - -}- - - - - - - - - I - - - - i? I T I - - - - - - - ? - _ _ - - - L I ) ? i T - I I I - - - - -- - 1- T E 7 f I _T r r "' XIA T _ 11 T - --- I t 1 I I 1 1 I I I I I 1 1 1 1 1 1 1 1 I I 1 1 1 1 I I I I I I I I 1 1 I r--I N N z/1 N P4 N N N .0!!? N P4 m O Site 4 - SR 1521 A Inlet Outlet d N P4 N O Site 6 - SR 1521 A Inlet Outlet 4-4 N •N d N P4 roft% O Q? 4-4 -O!? N ono N O COO -O!? N ?24 u C? N 0 4e!? N 0 N N 0 Q N P4 N O 1 1 1, 1 1 1 1 Oq3- 160.90" 1W I I 1 11 11 11 1 083° 16' 0.90" IW I 11 11111 1 1 0813- 15' O.QO" 1W 1 • t P J - 4000 -G ap r ; - Site 10 Site 8 r Site 6 Site 5 . Site 4 o ?.` ff Site 3 OP , - O O I 1 n f C7 Site 11 Site 9 co " lb t ' ? Jy r d 6 r N ti 1 ujita"' Grove ' `s l , °o- a e Site 7 0 °o r 0- U } 0 L, Co ? r, - V: f X - !Q „ O ?y4q¦7r L0 co 'W ? i "'AAA - J ? {•' / j % , y .. t (0 CY) • A _.r - .:w.._ 1 o T r ?n+-..,... fit '? 11 1 1 1 1 1 1 066 4 bAO"'W I I I I I I I I I 1 Ogl3o 4 b0.b0" IW I I I I I I 1 1 0813° ? 5' bO.b0" IW I I Name: CORBIN KNOB Location: 035° 13'12.06" N 083° 16'05.25" W NAD 27 Date: 4/24/2008 Caption: Onion Mnt. Rd SR-1521A Scale: 1 inch equals 1000 feet Copyright (C) 1997,