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HomeMy WebLinkAbout20061830 Ver 1_401 Application_20061106k MULKEY ENGINEEi2S & CONSULTANT'S PO Box 331 27 RALEIGH, NC 27636 PHONE: 91 9-851 -1 91 2 FAx: 9 1 9-8 5 1- 1 9 1 8 LETTER OF TRANSMITTAL To: NCDENR Division of Water Quality Date: November 21, 2006 Wetlands Unit 1650 Mail Service Center Raleigh, NC 27699-1650 Re: ATTN: Mr. Ian McMillan Job No.: 2006232.00 Hooker Falls -Little River Stream Restoration Project: Permitting I am sending you the following item(s): COPIES DATE NO. DESCRIPTION 5 11/22/06 - Section 401/404 Permit Application Package Cover Letter 5 - - Figure No. 1 Project Vicinity 5 - - Figure No. 2 Jurisdictional Waters of the U.S. 5 - - Figure No. 3 Transylvania County Soil Survey Map 5 - - Pre-Construction Notification (PCN) Application Form 5 11/15/06 - 11" x 17" Permitting Plans 5 11/09/06 - Hooker Falls -Little River Stream Restoration Project Erosion Control Narrative and Construction Sequence These are transmitted as checked bel ® As requested ® For approval ® For review and comment o :® ~"f ~ ~ "°° U r your use NOv ~ '~~ 2~6 [~~h1Ft -'WATER QlJAIi ;~~ypg ql~ STQ4P,1Yd~ a~t~iCH Remarks: Copy to: File (Mulkey) File (NCDFR) Signed: ~t/~~~ GENERAL MESSAGE TO: ~C~ 1J ~Q ~o ~ ~ ~~ FR~~~~ y1 C~ vV ~ ~ `~~ 1` SUBJECT ~^^~ ~ LL5 ~~ MESSAGE: vV 7 ~~t POSITION ^ ~ ~ ~ ~~~e ~ ?~ ~. ~. So,, inn `~ --~~~ ~ DAT C /SAO ~ ~~ ~~c17i l~ 2 z-/ t 1 ~_ SIGNATURE/POSITION REPLY ~~~ =~- NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Tom Gerow, Jr. N.C. Reg.For.# 1510 BMP Forester Forestry NonPoint Source Unit "C / /l~fiL.~~( North Carolina Division of Forest Resources 1616 Mail Service Center Raleigh, NC 27699-1616 Office: (919) 733-2162 ext. 246 Cell: (919) 218286 Fex:(919)715.6317 E-mail: Tom.A.Gerow~ncmail.net www.dfr.state.nc.us z131cs fns NFES 1336 PERSON RECEIVING GENERAL MESSAGE KEEPS THIS COPY DENR-OC2 DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES 11/6/97 JOURNAL ADJUSTMENT CODE SHEET Page DGCUMENT ID: 'I 6 2 5 BATCH TOTAL: $ 1 of ENTRY TYPE: BUDGET CODE: 1 4 3 0 0 JOURNAL VOUCHER ~ APP CODE: m DEPOSIT NO. CASH TRANSFER x^ TOTAL DEBITS: $ 4 7 5 0 0 BUDGET CREATION ~ GL EFFECTIVE DATE: 1 1 2 2 0 6 TOTAL CREDITS: $ ENCUMBRANCE ADJ ~ (current month) COMMITMENT ADJ ~ DATA TYPE CODE: ~ CLOSED PERIOD ADJUSTMENT: L e D COMPANY ACCOUNT CENTER AMOUNT # CR DESCRIPTION RULE 1 16 0 2 4 3 5 1 0 0 0 9 5 2 3 4 1 4 7 5; 0 0 CR 2 16 0 1 5 3 3 9 0 0 1 2 1 0 2 4 2 6 4 7 5; 0 0 DR I I _ , ,~ , ___ a I I JUSTIFICATION: This is fora 401 Wetlands Certification Application to DWQ from DFR Prepared by: V.Tillotson ~ Date: ~~ 0 to support the Hooker Falls Stream Restoration Project Approved by: ~~~p'~ Date: (~ oL INSTRUCTIONS: Preparer must complete the following: Type of Entry, Page, Budget Code, Deposit No. (if applicable), Total Debits, Total Credits, Line Number, Company, Account, Center, Amount, DR/CR, Description (cannot exceed 30 characters), Prepared By, Date and Justification. All forms must be reviewed and approved by authorized individu in the preparer's division. Every line must be valid and funds must be available prior to submitting the entry to be keyed. Combine similar Company, Account, and Centers on one line. 'Hold Date Release Date "Unavailable Funds Override Approval Entered By: Date P~SYME~~T RECEIVED ~ ~..~ ~- K E Y ~r~~t€~c~~:; ~ c~~s~~- -. US Army Corps of Engineers ~1 j~ ~ ~j Asheville Regulatory Field Office p ~ ~j '~' 151 Patton Avenue, Room 208 ~ ZQ~~ Asheville, North Carolina 28801-5006 ~~~ `~+ ATTENTION: Ms. Lori Beckwith DE~~psY~~R~ RCN USACE Transylvania County Regulatory Representative DATE: November 22, 2006 2 0 0 6 1 8 3 0 SUBJECT: Hooker Falls Stream Stabilization and Restoration, Transylvania County, North Carolina Please find attached the Pre-Construction Notification (PCN) Application Form for the referenced project. The North Carolina Division of Forest Resources (NCDFR) has proposed a stream stabilization and restoration project within the DuPont State Forest along the Little River in Transylvania County. This project is located approximately 6.5 miles from Brevard and consists of two distinct areas on the river. The first area is located approximately 0.10 mile upstream of Hooker Falls at the site of an existing natural gas line easement. The second area is located at the base of Hooker Falls. This work will result in 398 linear feet (7,772 square feet) of unavoidable impacts to the Little River. The anticipated let date for this project is the end of Apri12007. The purpose of this proposed project is to cease the continued erosion along the banks of the Little River. These two locations were chosen because of the severe nature of erosion at these locations due primarily to significant public use. The first site is a very popular location for fishing, sun bathing, and picnicking due to its open nature and relatively shallow water because of a large rock outcropping. The right bank has witnessed severe erosion from pedestrian traffic along the natural gas easement which provides easy visitor access to this area from Hooker Falls Road. Armoring of the right bank through use an engineered modified single wing deflector is necessary. Also proposed at this location is a "J-hook rock vane" structure which will protect the left bank while providing habitat for existing trout populations. The second site is perhaps an even more popular location for visitors to the DuPont Sate Forest due to its position immediately downstream of Hooker Falls. Uses of the shoreline at this location include photography, fishing, sun-bathing, and picnicking. The heavy foot traffic along with severe storms during the past five years has caused severe erosion and the loss of a significant portion of shoreline. There are no indications that the current rate of erosion is slowing; therefore, a large modified single wing deflector has been proposed along the right bank. This structure will cease the erosion, as well as providing an area that can be walked on and enjoyed by the many park visitors. The left bank at this location has an extremely steep slope and will not require bank stabilization or stream restoration structures. The existing Hooker Falls Road currently used exclusively for foot traffic will provide the necessary equipment access to these two locations. Though the NCDFR currently does not allow vehicular traffic on this road, the access road is a 10 foot gravel road which can handle the equipment traffic necessary to construct the proposed stream structures. This equipment traffic will involve a bucket excavator and dump trucks. It MULKEY INC. 6750 TavoN Rono CARY, NC 27511 PO Box 33127 RALEIGH. NC 27636 PH: 919-851.1972 Fox: 919-851-7978 WWW.MULKEVINC.COM should be noted that a significantly steep area along Hooker Falls Road near the Hooker Falls overlook has been paved. The portion of the access road immediately beyond the Hooker Falls overlook will need to be upgraded to support the proposed equipment traffic. All disturbed areas will be planted with temporary and permanent seeding, and will also be mulched. In addition, restored sections of the stream channel will be further stabilized through the installation of coin fiber erosion control matting. Native vegetation (both seedlings and live staking) will be installed immediately following construction The project is located within the French Broad River subbasin 04-03-01. There is only one jurisdictional stream within the project study area, the Little River. The Little River is depicted on the Brevard, NC topographic quadrangle map and the Transylvania County soil survey. The Little River flows into Cascade Lake approximately 0.5 mile northwest of the project area. NCDWQ has assigned a best usage classification of "C; Tr" to the Little River and a stream index number is 6-38-(1). The USGS hydrologic unit is 06010105. There is another small perennial unnamed tributary (UT) to the Little River that empties into the Little River near the J-hook structure at the natural gas easement site. This stream is not proposed to be directly impacted. Laurel Creek located approximately 1 mile west of Hooker Falls has been classified by NCDWQ as high quality waters (HQW); however, this stream empties into Cascade Lake approximately 0.75 miles downstream of Hooker Falls. There are no outstanding resource waters (ORW), high quality drinking water supply waters (WS-I and WS-II), or 303(d) listed streams within aone-mile radius of the project study area. The United States Fish and Wildlife Service (USFWS) has identified five Endangered (E) species (Carolina northern flying squirrel, Appalachian elktoe, oyster mussel, mountain sweet pitcherplant, and spreading avens), two Threatened (I~ species (small whorled pogonia and swamp pink), and one species Threatened due to a similarity of appearance (T[S/A]) (bog turtle) fox which occurrences have been recorded in Transylvania County. The land that will be impacted as a result of this project consists of a perennial mountain stream, with an existing maintained natural gas line easement, and a gravel access road. Suitable habitat is present for Appalachian elktoe, oyster mussel, and small whorled pogonia. Suitable habitat fox the Carolina northern flying squirrel (Glaucomy.c .cabrinu.r coloratu.r) consisting of forested areas above 4,500 feet msl is not present in the project study area. NCNHP does not list any occurrences of the Carolina northern flying squirrel within a one mile radius of the project area. This species will not be impacted as a result of project construction. • The bog turtle (Clemmyc muhlenbergia) is listed as T (S/A) due to its similarity of appearance to another rare species that is listed fox protection. T (S/A) species are not subject to Section 7 consultation of the Endangered Species Act. A biological conclusion for this species is not required. In addition, suitable habitat consisting of mountain bog areas is not present within the project study area. • Suitable habitat for the Appalachian elktoe (Ala.rmidonta raveneliana) consisting of shallow, medium-sized creeks and rivers with cool, well-oxygenated; moderate to fast flowing water is present in the project study area. The main stem of the Little River from Cascade Lake Power Plant, downstream to its confluence with the French Broad River has been designated as critical habitat for the Appalachian elktoe. However, NCNHP does not list any occurrences of the Appalachian elktoe within the Little River drainage basin above the Cascade Lake dam, nor does NCNHP list the freshwater mussel within a one mile radius of the project area. • Suitable habitat for the oyster mussel (Epioblarma cap.raeforrni.r) consisting of fast flowing water less than 3 feet deep at riffles with a sand and gravel substrate is present within the project study area. NCNHP does not list any occurrences of the oyster mussel within a one mile radius of the project area. • Suitable habitat for the mountain sweet pitcherplant (Sarracenia rubra .crp. jone.riz) consisting of depression bogs and cataract bogs in the Southern Appalachian Mountains is not present within the project study area. NCNHP does not depict any occurrences of the mountain sweet pitcherplant within a one mile radius of the project study area. Proposed project construction will not impact this species. • Suitable habitat for the small whorled pogonia (Lrotria medeoloide.r) consisting of open, dry deciduous woods with acid soils and rich cove hardwoods is present in the project study area. NCNHP does not list any occurrences of the small whorled pogonia within a one mile radius of the project area. • Suitable habitat for spreading avens (Geum radiatum) consisting of high-elevation cliffs, outcrops, steep slopes, and on grassy balds near summit outcrops which are exposed to full sun is not present in the project study area. NCNHP does not list any occurrences of spreading avens within a one mile radius of the project area. Proposed project construction will not impact this species. Suitable habitat for swamp pink (Helonia.r bullata) consisting of Appalachian mountain bogs, swampy forests bordering small streams, wet meadows and spring seepage areas is not present in the project study area. NCNHP depicts one population of swamp pink approximately one mile south of the project study area. This population is located along an unnamed tributary to the Little River immediately downstream of a large pond associated with the DuPont Forest Power Plant. The proposed project will not impact this species. Following your review and concurrence with the proposed action, please issue a NWP 27 that will authorize construction activities associated with stream stabilization and restoration activities at the Hooker Falls site. If you have any questions or comments concerning the project, please contact me at (919) 858-1804. Thank you fox your assistance. Sincerely, `~J~~~ Harold M. Brady Staff Scientist Mulkey, Inc. Attachments PCN Figure 1 Project Vicinity Figure 2 Jurisdictional Waters of the U.S. (w/ aerial overlay) Figure 3 Transylvania County Soil Survey Map Permit Drawings Erosion Control Narrative and Construction Sequence report cc: (5 copies) Mr. Ian McMillan, NCDWQ-Wetlands Unit (single copies) Mr. Kevin Barnett, NCDWQ -Asheville Regional Office Mr. Tom Gerow, Jr., Division of Forest Resources Mr. Scott Hunt, Mulkey, Inc. d ~ ~ __ [~~.~;EIVEU 2 0 0 6 1 8 3 0 Office Use Only: Form Version March OS USAGE Action ID No. DWQ No. (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) I. 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: NWP 27 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 1. Owner/Applicant Information Name: North Carolina Division of Forest Resources Forestry Non-Point Source (NPS) Unit Contact: Tom Gerow, Jr.,~roject manager Mailing Address: 1616 Mail Service Center Ralei~h_ NC 27699-1616 Telephone Number: (919) 733-2162 ext. 246 Fax Number: (919) 715-6317 E-mail Address: tom.a. eg row cnr,ncmail.net 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: Company Affiliation: Mailing Address: Telephone Number: Fax Number: E-mail Address: Page 1 of 9 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: Hooker Falls -Little River Stream Restoration Project 2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A 3. Property Identification Number (Tax PIN): North Carolina Forest Service (DuPont State Forest)• PIN# 9513-39-6248-000. 4. Location County: Transylvania Nearest Town: Brevard Subdivision name (include phase/lot number): N/A Directions to site (include road numbers/names, landmarks, etc.): From Asheville take I-26 East/US-74 East to Exit 40. Follow NC-280 South toward Brevard for approximately 16.0 miles. Turn left onto US-64 and continue on US-64 for approximately 4.0 miles. Make a right onto Crab Creek Rd. toward Little River community. Turn right onto DuPont Rd. and travel for approximately 3.0 miles to the Hooker Falls visitors parking lot (located immediately before the bridge over the Little River). Follow the Hooker Falls trail approximately 0.10 mile to the gas line crossing and continue for another 0.15 mile to the falls. 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.) Decimal Degrees (6 digits minimum): 35° 12' 06.26" °N 82° 37' 24.52" °W 6. Property size (acres): 4,042 acres 7. Name of nearest receiving body of water: Little River 8. River Basin: French Broad (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/.) Page 2 of 9 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: The property is currently forested with a natural a easement traversing the property. There is a maintained one-lane paved/gravel access road that is blocked for traffic and used as a major trail to Hooker Falls. A large ravel parking area is located along DuPont Road and serves as the trail head. There are several areas of picnicking and recreation facilities on the property, especially near the Hooker Falls Road. Undeveloped forest land adjoins the subject property in all directions. Cascade Lake is present approximately 1 mile northwest and downstream of Hooker Falls and a substation is present approximately 1 mile south and upstream of Hooker Falls. 10. Describe the overall project in detail, including the type of equipment to be used: Stream restoration and riverbank stabilization are proposed at two locations along the Little River near Hooker Falls. The first area is located at a natural gas line easement near an old fiord. Work within this area will involve construction of a "J-hook" stream restoration structure along the left bank and a modified sin lg e wing deflector alon tg_ he right bank. The second area is located immediately downstream of large pool at the base of Hooker Falls. Work in this area will involve the construction of a modified sin lg e wing deflector alon tg he right bank. Standard stream restoration construction equipment including an excavator and a dump truck or front-end loader will be used to convey the rock to the stream and construct the structures in the stream. 11. Explain the purpose of the proposed work: To stabilize and reinforce the stream banks that have demonstrated severe erosion and direct the flow of the water within the stream channel by use of natural channel design. This will avoid any continued erosion along the stream 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. There have been no previous environmental permits (applied for or otherwise) associated with the Little River within the subject property that the North Carolina Division of Forest Resources has any knowledge of. Page 3 of 9 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. No future stream restoration activities are antic~ated to occur once this proposed work is completed. 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: These proposed stream restoration and bank stabilization activities will impact 398 linear feet of channel and will disturb 7,772.0 square feet of stream channel. 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 (yes/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: None within the project study area. Page 4 of 9 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 43,560. Stream Impact Number (indicate on ma) Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Im act Impact Length (linear feet) Area of Impact (acres) 1 Little River Stabilization Perennial 60 feet 100 0.12 2 Little River Stabilization Perennial 100 feet 298 0.06 Total Stream Impact (by length and acreage) 3981inear feet 0.18 acres 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, bulkheads, etc. Open Water Impact Site Number (indicate on ma) Name of Waterbody (if applicable) Type of Impact Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) Area of Impact (acres) Total Open Water Impact (acres) 6. List tl ie cumulative impact to all Waters of the U.~. 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): 398 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. Page 5 of 9 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 (permanent pool): 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. The reach of the Little River associated with the project experiences a large volume of pedestrian traffic throughout the year. Both areas where the proposed stabilization and restoration are planned have experienced relatively severe bank erosion during storms associated with recent major hurricanes. The maiority of the streambank erosion has occurred along the right banks at both sites. This accelerated erosion is apparently attributed to the lack of sufficient existin riparian vegetation at these locations. The bulk of the pedestrian traffic is limited to the existing_gravel access road, Hooker Falls Road, adjacent to each of the sites. Both sites, however are, popular access points for various activities, including fishing, kayakin ,photography, sunbathing, and swimming. Without these stabilization and restoration activites these areas will continue to erode as well as the relatively undisturbed areas immediately upatream and downstream of these locations. VIII. Mitigation 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, Page 6 of 9 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/strm~ide.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/index.htm. 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): Amount of Riparian wetland mitigation requested (acres): Amount ofNon-riparian wetland mitigation requested (acres): Amount of Coastal wetland mitigation requested (acres): No compensator mitigation is required for a NWP 27. 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 Page 7 of 9 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 (Meuse), 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 I 3 (2 for Catawba) 2 1.5 Total * Zone 1 extends out 30 feet perpendiculaz from the [op of the neaz 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 Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. This proposed project is not located within a river basin that requires basinwide NCDWQ stream buffers. 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. There is currently no impervious surface within the proposed DuPont Forest site. No permanent impervious surface is anticipated to be generated from the construction for these stream structures. Page 8 of 9 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. No wastewater is anticipated to be produced from this proposed stream stabilization and restoration project XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes ^ No Isthis anafter-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:/lh2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: No negative cumulative impacts are anticipated to occur as a result of this proposed stream restoration project. The goal of this project is to improve water quality along the Little River. 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 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). Best mana eg ment practices and construction moratoriums concerning trout waters will be strictly followed. NCWRC construction moratoriums are from October 15 to April 15. Applicant/Agent's Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) 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PROJECT VICINITY ~ ~ ^ ~ ~ ~ ~ ~ Hooker Falls Stream Restoration and Bank Stabilization Figure No. c r=d ~ I nI E~ l? s~ c~ i~l s u ~ T a r~ T s Transylvania County, North Carolina Prepared For: t:za,ooo Feet 0 800 1,600 3,200 4,800 6,4D0 .- USGS 7.5-Minute Topographic Quadrangles: Brevard and Standingstone Mountain, NC Contour Interval 40 Feet :; ~'~~~'" Hooker Falls site 1 '~ I ~ ~ - ~ • ' ~ w r j ti ~ ~ ~ ~ ;& r ~ ^Yt ~ ` R "" , +~ ~' " ~ r; p r. .A~ a ~ t n _ m 9~ r@ °71^_x_ , ,. .~ ~, .F° ~a ~, s F _ ~ s x ~ ~ { ~ ~. ~ e ~~ »+ ~Y a 7"' k Y a ~ ~ ~ ~~ ~~ JURISDICTIONAL WATERS OF THE U.S. Hooker Falls Stream Restoration and Bank Stabilization tW ~ i N ~ s ~ s ~ c o r: s ~ ~Ta ra ~ s Transylvania County, North Carolina Prepared For: 1:a,ooo • ' Feet 31' N 0 135 270 540 810 1,080 USGS Aerial Photography: gg~ ~~ 9-;~ t 1 ,~~¢ , "~~~~ ~ r t r1~'f"~ 1 Figure No. m'. ' AeE t, n t: ~' ~ Y '. : ; \ L'-`'t ,~ ~,' ChD ~ ~~ j-'' / A,eE r t>~' ChD ~, ~ AePr.. 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TRANSYLVANIA COUNTY SOIL SURVEY MAP _AMULI~E~` Hooker Falls Stream Restoration and Bank Stabilization FIgUr~ ~®. ;v ~ I ra ~ _ ~ s ~ c a ra s ~ r.~`,~ E-~ T s Transylvania County, North Carolina Prepared For: *~ 1:15,840 J 'a>- Feet 7~- ~ w 1 0 550 1,100 2,200 3,300 4,400 NRCS Transylvania County Soil Survey c -- Hooker Falls -Little River Stream Restoration Project DuPont State Forest Transylvania County, NC Erosion Control Narrative And Construction Sequence Mulkey Project Number: 2006232.00 Project Engineer: William Scott Hunt, III P.E. Date: 11 /09/06 Prepared For: 2~~6~a30 11111-,,/, ,CAR '~. 0 '' ~..«...1~ '~. ASS/riS~~-v j Prepared by: MULKEY .., t~rv car. e. ~:2~ ~ corv~t7 [..?'ra ra ~'s • ~/: °=- P s° o~ ~ ~ yr~~~N~~ J~~• s~o~c ~,,,,. ~//11/11441'1~ Hooker Falls -Little River Stream Restoration Project DuPont State Forest Transylvania County, NC General Description The proposed Hooker Falls -Little River Stream Restoration Project (project) is located entirely within the limits of the DuPont State Forest in Transylvania County, near Brevard, North Carolina. Mulkey, Inc. (Mulkey) was contracted through the North Carolina Department of Environment and Natural Resources, Division of Forest Resources (DFR) to provide engineering services for this project, including design and construction management. The proposed design for this project is based on natural channel design methodologies and is intended to correct or stabilize several areas of existing streambank erosion. The project is located along the Little River at two non-contiguous sites: the Gas Line Site, which is upstream of Hooker Falls, in the vicinity of the existing PSNC subterranean utility crossing; and the Hooker Falls Site, which is located immediately downstream of Hooker Falls. The drainage area at the Hooker Falls Site is approximately 35.5 square miles. The reach of the Little River associated with the project sites experiences a large volume of pedestrian traffic throughout the year. Both sites have experienced relatively severe bank erosion during storms associated with recent major hurricanes. The majority of the streambank erosion has occurred along the right banks at both sites. This accelerated erosion is apparently attributed to the lack of sufficient existing riparian vegetation at these locations. The bulk of the pedestrian traffic described above is limited to the existing gravel access road, Hooker Falls Road, adjacent to each of the sites. Both sites, however are, popular access points for various activities, including fishing, kayaking, photography, sunbathing, and swimming. Goals and Objectives The DFR has the following goals and objectives for this stream restoration project: • Correct or stabilize the areas of existing streambank erosion at the sites utilizing natural channel design methodologies; • Reduce the rate of streambank erosion at the sites, consequently improving water quality; • Improve in-stream habitat; • Strategically control some of the pedestrian access at both sites; and • Provide an opportunity within the DuPont State Forest to educate the general public about stream restoration. Proposed Restoration As noted above, the proposed restoration design for both sites is based on natural channel design methodologies. The right bank at both the Gas Line Site and the Hooker Falls Site will be restored through the construction of modified single wing deflectors. These deflectors will be modified through construction of rock sills to create "cells". These cells are intended to prevent washout or failure of the structure during large storm events. The cells will also be arranged to permanently facilitate and direct equipment and pedestrian access at both sites. Future equipment access will be facilitated and directed by terracing the deflectors down naturally to the right edge of water. Pedestrian access will be facilitated and directed by raising some of the cells slightly to encourage traffic within desired corridors across the structure. All of the rock cells will be backfilled to final grade with gravel tailings. The raised cells adjacent to the pedestrian access areas will ultimately be planted with permanent native species vegetation by the DFR after construction. These raised cells will be backfilled to within two feet of final grade with gravel tailings, with the remaining backfill to grade consisting of topsoil excavated on site during construction. A rock j-hook will be constructed along the left bank at the Gas Line Site. This structure is proposed to repair the minor erosion along the left bank, to prevent future erosion at this location, as well as to provide additional in-stream habitat. All of the rock and gravel tailings used for the construction of the in-stream structures for this project will come from on-site or will be supplied from one or both of the quarries owned by the DFR and located within the DuPont State Forest. Erosron Control Erosion control during construction operations will be provided through the use of silt fence, tree protection fence, a gravel construction entrance, the existing gravel access roads, Holly Road and Hooker Falls Road, as well as the existing DFR equipment staging area at Holly Road. A gravel construction entrance will be installed at the entrance to the existing gravel parking lot at Staton Road (SR 1593). All construction access will utilize the existing gravel access roads, Hooker Falls Road and Holly Road. The section of Hooker Falls Road at the east end of the project will be improved to a ten-foot wide gravel section by the DFR prior to the beginning of construction. All construction materials will be staged at the existing DFR equipment storage area at Holly Road. The proposed area of disturbance is 0.85 acre, and is limited to the actual work areas where the in-stream structures will be installed, the spoil areas at these locations, and the staging area at the existing DFR equipment storage area. Silt fence will be installed at the down slope end of the Hooker Falls Site, as well as surrounding the staging area. A stream pump around system is not proposed because of the large drainage area (approximately 35.5 square miles). Mature vegetation outside of channel construction is to be left undisturbed, to the maximum extent practicable. All disturbed areas will be planted with temporary and permanent seeding, and will also be mulched. In addition, restored sections of the stream channel will be further stabilized through the installation of coin fiber erosion control matting. As described above, the project has been divided up into two separate sites or work locations. Construction of the project will be carried out in four phases to ensure adequate implementation of erosion and sedimentation controls, minimization of sedimentation, channel stability, and maximum vegetation survival. The proposed construction sequence outlining these four phases is included below: PHASE I 1. Staging areas, stockpile areas, the construction entrance, limits of silt fencing, and existing access roads will be identified and located as shown in plans. 2. Install the construction entrance. 3. Contractor will begin stockpiling materials in designated staging areas. 4. Install silt fencing to the limits shown on the plans. Silt fencing will be installed around the limits of the staging/stockpile areas. 5. Install tree protection fencing as directed by the Designer. Flag all vegetation to be transplanted. PHASE II HOOKER FALLS SITE 1. Proposed structure locations will be staked by the contractor. 2. Remove all transplants and stockpile and maintain in accordance with the construction documents. 3. Remove any appropriate trees to be used as rootwads and stockpile in accordance with the contract documents. 4. Perform required clearing and grubbing. 5. Segregate and stockpile topsoil and other soil material in accordance with the contract documents. 6. Boulders and materials used for stream structures will be delivered through the primary construction entrance and stockpiled in appropriate areas at the site. 7. Stream banks will be reconstructed and structures installed. Perform all topsoil replacement, vegetation transplanting, and seeding. 8. Stream banks will have permanent and temporary seed, straw, soil amendments, and erosion control matting applied to them as work progresses and by the end of each day. Erosion control matting will be installed on top of the seeded, amended, and mulched stream banks according to Construction Documents. f. 'p 9. Any excavated soil materials not utilized will be stockpiled and maintained according to the Construction Documents. 10. All remaining disturbed areas at the site are to be amended, seeded, matted and/or mulched according to the Construction Documents. 11. Live staking and vegetation transplanting can begin on the completed section of channel if criteria outlined in the Construction Documents for live staking and transplanting are met. PHASE III GAS LINE SITE 1. Proposed structure locations will be staked by the contractor. 2. Remove all transplants and stockpile and maintain in accordance with the construction documents. 3. Remove any appropriate trees to be used as rootwads and stockpile in accordance with the contract documents 4. Perform required clearing and grubbing. 5. Segregate and stockpile topsoil and other soil material in accordance with the contract documents. 6. Boulders and materials used for stream structures will be delivered through the primary construction entrance and stockpiled in appropriate areas at the site. 7. Stream banks will be reconstructed and structures installed. Perform all topsoil replacement, vegetation transplanting, and seeding. 8. Stream banks will have permanent and temporary seed, straw, soil amendments, and erosion control matting applied to them as work progresses and by the end of each day. Erosion control matting will be installed on top of the seeded, amended, and mulched stream banks according to Construction Documents. 9. Any excavated soil materials not utilized will be stockpiled and maintained according to the Construction Documents. 10. All remaining disturbed areas at the site are to be amended, seeded, matted and/or mulched according to the Construction Documents. 11. Live staking and vegetation transplanting can begin on the completed section of channel if criteria outlined in the Construction Documents for live staking and transplanting axe met. PHASE IV 1. Complete minor grading and sub-soiling of the site to create microtopographic features adjacent to the stream channel. 2. After all construction requiring heavy equipment is complete; remove silt fence and tree protection fence. 3. Begin removal of remaining staging area(s), construction entrance, and any remaining associated materials. 4. Remove and dispose of all trash, metal, and debris from the site according to County and State of North Carolina Regulations. sco ID pro. os-o6so~-ol I ~ ~ ~ ~~ - - 1 CASCADE ~.\ LAK~ ~ y ~~ - 0 1 ~ --I Z - _ Iii - p '~: 0 'I ',\ O ~ \ in _ F / L ~ ~~ ~~ w SHOOK FALLS - `~ ~ ,~ PROJECT ~, ~` , LOCATION ~ ~' - ~i ~I h 1, 1 ~, \~ - - ..1 -_ - ~ ~/ ~_ ___ f~ I ~~ ~ ~ ~\ ~ .1 II 7 ~ I ~'I '. n _ VICINITY MAP NDT TO SCALE TRANSYLVANIA COUNTY HOOKER FALLS- LITTLE RIVER STREAM RESTORATI011t PROJECT LOCATIDN:WPOh7 STATE FOREST i// /~ /( \ /~-'' LITTLE RNER ~ ~~F i, .. ,; ,.., . 4 . ~ 4.."'-'r-. ~~ HOOKER FALLS ~ - /~. -. ;.. ,„ •..I i P;~' ~' ~ ~ ~~~ ~ V~ %' ~~~~i ~ i i~ LITTLE RIVER INDEX OF SHEETS SHEET NUMBER SHEEP I TITLE SHEET lA LEGEND Z GENERAL NOTES 2A - 2C DETAILS 2D MORPHOLOGICAL TA9LE5 O CON51RlIC110N SEQUENCE 1 - 5 PLAN AND PRORLE b EROSION CONTROL PLANS XSC-I CRO55 SECTIONS DISTURBED AREA = +/- .85 ACRES REVISIONS DESCA~anoR SCALE AS SHDWN PLANS PREPARED BY: MULKEY PROJECT MANAGER PROJECT ENGINEER sc~RATk DESGN DATE: II/5/D6 WILLIAM SCOTT HUNT, III, PE FNAL DESIGN DESIGNED: wSH • M U L K E Y PEAwrnNGiwiDDicO DRAwk JTL ENGINEERS & C[SN BLI LT NT MULKEY SENIOR ENGINEER 00 ROY tl4E FOR 60RSTAOCII CHECXED: wSN A S WILLIAM SCOTT HUNT, III, PE APPADVED, WSH PC BGX 33127 RALEIGH: N.C. 27636 (9191851.1912 MULKEY SENIOR SCIENTIST (9191 851-1918 (FAXI w x X PADI cr iuR A www.MULKEnNC.caM THOMAS BARRETT, RF zooGZaz.DD NCFS PROJECT MANAGER TOM A. GEROW, JR. zoos,$3o NOT TO SCALE ~VYTEIEliIIIJ!?PV r 'y : , .. 1~ ~, wr,~ i \~' ~. .>'~~.. ~ r `p. ~'~i. 7~yG i ~ N "^3 ~~; ~ ti~'~i ,r, f1,,~ e~j.~,p Rs"w.~Viaarysy~~~vti~~ /~~~~~Utst,t4T5~~~ PLANS PREPARED FOR t`f]~TI •• TITLE SHEET SHEET OF NOTE: NOT TO SCALE ,~~"``" "'''~~; Not all s bols used in lans LEGEND `'~~ °~~~ c~~RO~' ~~"' Ym P ~~ ~.~~~tiss~~y~ti9 BOUNDARIES AND PROPERTY.• State Line - - County line - - - -- - -- Township Line - - - ------- City Line - - - . - - ..... ---- - Reservafion Line - - - - - - - - - - - - Properfy line - - - - - - - - Existing Iron Pin - - - - - - Property Corner - - - - - - - - - Property Monument - - - - - - - - - Temporary Fence - - - - - - - - - -xx-x- Proposed Woven Wire Fence - - e Proposed Chain Link Fence - - - - ~- Proposed Barbed Wire Fence - - - - - - ~-- Tree Protection Fence - - - - - - - - - - - - - - - ~--0 Existing Wetland Boundary - - - - - - ----~~~---- Proposed Wetland Boundary - - - - - - - ns Proposed Conservation Easement - - Construction Limits - - - - - - --------------- LimitsOfDisturbance ---------- ---------------- Gate - ----- - --- - -- -- ~--~ L ~-J Benchmark------------------------- . BUILDINGS AND OTHER CULTURE.• Sign - -_- ... --- ---- - Well - ----- - ----- - -- -- ° W Foundation --- ----- - - - --- ~ Area Outline--- - ------- - --- 0 Recreational Structure - - - - - - - - ----- ----------- Building - - - .. - - - - - u School - ---- - - - --- ----- Church - ----- - - - ---- HYDROLOGY.• Stream or Body of Water - - - - - - - - - - . - - .- ...- Hydro, Pool or Reservoir - - - - - - - - - - - - - - ~ ` ----~ -J River Basin Buller------------------- F„- Flow Arrow - - - - - - - - - - ..~ ...-...- Disappearing Stream - - - - - - - - - - - - - - - - - ...-._- Spring -- - - ----- -- -- -o'- ..~~ Tholweg - - - - - - - - - --- - Top Of Bank- - - - - - - - - - - - - -- ------ Swamp Marsh-- --------------- ~ P d L f l T il H d Dit h ~ ropose a era , , ea a c - - - - - - - - RAILROADS.• Standard Guage - - - - ~ •L~~' csx rawsvoArumn~ RR Si nal Mile ost '' 9 P - uncaosT 3s Switch -..- - ..... ..---- ~ SW11CN RR Abandoned --- -- - -- RR Dismantled - - - - -- - ROADS AND RELATED FEATURES.• Existing Edge of Pavement - - - ----- Existing Curb - - - - - - - - - .. ----- Existing Metal Guardrail - - - - - -~--'--'- Existing Cable Guiderail - - - - -b--~-~- l~'GETATION.• Single Tree - - - - - - - - - - ~ Q Single Shrub - - - - - - - - - o Hedge - - - - - - . . ......... ..„-,..„r„r~ Woods Line - - - - - - - - 1,,, ~,.,"n„"„ Orchard - ------ --- Q 4 4 4 Vineyard - - - - - - - - - - - -~ _ ~~°°y°~d - 1 EXISTING STRUCTURES.• MAJOR: Bridge, Tunnel or Box Culvert - - - - - co~,~c Bridge Wing Wall, Head Wall and End Wall ~ cant Ww MINOR: Head and End Wall - - - - - - - - - cant ew Pipe Culvert - - - - - - - - - - - - Footbridge ....... - - - - - ~- --~ Drainage Box: Catch Basin, DI or JB - - - - - ~ce Paved Difch Gutter - - - - - - - -- --- Storm Sewer Manhole-------------- 0 Storm Sewer - - - - - - - - - - s UTILITIES.• POWER: Existing Power Pole------------ -- - Existing Joint Use Pole - - - - ~- Power Manhole - - - - - - - - - Power Line Tower - - - - - - Power Transformer - - - - - - - - - - ~ lLG Power Cable Hand Hole - - - NN H-frame Pole - - - - - - ~-+ Recorded LVG Power Line - - - P GAS: Gas Valve - - - ------ Q Gas Meter - - - - - - - - o Recorded lbG Gas Line - - - - - - - - - Above Ground Gas Line - - - - "" `°' -. I~ 2967 ~ ~; fz' ~ l.2a s, TE%EPnONE: ,''~~i/~(~~/'SCVf +y~~J~~,, + s g Telephone Pole ~rrr- Telephone Manhole - - - - - - - 0 Telephone Booth ~ - - - - - - D Telephone Pedestal - - - - - - - ~ Telephone Cell Tower - - - - - - - - - - ~ USG Telephone Cable Hand Hole - - - ~ Recorded WG Telephone Cable - - Recorded LbG Telephone Conduit - - - - '~ Recorded lYG Fiber 0 tics Cable - - - ' ~°- P WATER: Water Manhole - - ~ - - - - - - - Water Meter - - - - - - - - - - o Water Valve - - - - - - - Water Hydrant - - - - - - - ~ Recorded WG Water Line - - - - - - - Above Ground Water Line - - - arc W0~eY N: N Satellite Dish ------------ - CC N Pedestal - - - - ... - - - N Tower ------... ---- -- - ~~ lVG N Cable Hand Hole - - - - "H Recorded lbG N Cable - - - - - - - - ~~ Recorded Wti Fiber Optic Cable - - ~~ ~° MISCELLANEOUS: Utility Pole ----------------------- ~ Utility Pole with Base ---------------- ^ Utility Located Object - - - - - - - - - - - - - - - - o Utility Traffic Signal Box - - - - - - - - - - - - - - Utility Unknown lLG Line - - - - - - - - - - - - ~~~~ U-G Tank; Water, Gas, Oil ----------.- 0 ArG Tank; Water, Gas, Oil ------------ Abandoned According to Utility Records - - - AATUR End oflnformation ------------------ E.0.1. SANITARY SEWER: Sanitary Sewer Manhole - - - - - - - - S (Located By Others) Sanitary Sewer Cleanout - - - - - - - - - - - - - - 0 lYG Sanitary Sewer Line-------------- (Located By Others) Above Ground Sanitary Sewer - - - - - - - - - bit 5°^.,°~~ seWe~ Recorded SS Forced Mam Line- - - - - - - - - - ~~s PROPOSED STREAM WORK.• STREAM STRUCTURES: Rock Crossvane - - - - - - RockVane-~~ --- ~ --- JHookRockVane---------------- Single Wing Deflector - - - - - - - - - - - - - - Double Log Drop ----------------- Rock Step Pool e- ------------ Constructed Riffle - - - - - - - - - - Root Wad-- ..-- ---- Structure Number --------------- STREAM FEATURES: Bankfull -- -- ----- .. Vernal Pool - - - - - - - - - - Headwall---------------------- CulvertPipe --------------------- EROSION CONTROL FEATURES• Temporary Stream Crossing - - - - - - - - - Temporary Construction EntrancdExit - - - - Silt Fence -------------------- --- Staging Area -------------------- Impervious Dike- - - - - - - - - - - - Maintenance Road ---------------- Stone Outlet Sediment Trap - - . - - - - - - . Impervious Stream Channel Plug - - - - Natural Rock Energy Dissipator Basin Pad- - PLANTING ZONES.• Stream Banks - - - - ~ - - - Riparian Buffer------------------ Vemal Pool ...................... Wetland - - - - - - Upland Buffer------------------ Maintained Area/Existing - - - - - - - 0 O ~..__~ )T( fad ~W~ v ~'o GENERAL NOTES 1 +~ 1. This plan is based on the principles of natural channel design. 2. Proposed constructed stream features and structures shown on these plans are shown in their approximate location and shall be field located and dimensioned to insure proper channel dimension. 3. All elevations shown on these plans are referenced to an assumed datum. 4. The location of all equipment and material staging areas, haul roads and access points to be located as noted on these plans. Limits of tree protection fencing, silt fencing, construction staging areas and construction access roads shown approximate on plans. Limits and locations to be coordinated with the designer. 5. Rock will be staged in construction staging areas upon delivery. Existing rock will also be utilized in formation of structures where feasible. 6. Construction activities shall progress downstream, unless otherwise noted on these plans or as directed by the designer. 7. Equipment will remain outside of channel for the majority of construction. Minimal in-stream work is anticipated for successful placement of structures and channel excavation. 8. All mechanized equipment operated in or near the stream or its tributaries shall be inspected regularly and maintained to prevent contamination of stream waters from fuels, lubricants, hydraulic fluids or other toxic materials. Any equipment repairs, maintenance or refueling activities shall not be done while the equipment is in the stream or its tributaries. 9. Contractor to dispose of all waste material offsite in accordance with all federal, state and local regulations. 10. All appropriately sized on-site trees removed during the stream restoration construction to beused on-site as rootwads, footer logs, etc., where feasible and as directed by the designer. 11. All rootwads shall be installed by driving or pushing them into the streambank, when driving is not feasible, installation through excavation maybe acceptable if directed by the Designer. 12. All disturbed areas to be seeded immediately as specified in the project specifications. 13. Apply temporary and permanent seed and erosion control fiber matting to bankfull bench and cut banks daily as excavation progresses. Erosion control fiber matting will be keyed into the top of slope and at the ends of each mat to prevent undercutting from sheetflow. Additional silt fencing will be installed as directed by the designer. 14. Unless otherwise directed by the Designer or noted on these plans, a 50-foot minimum width permanently vegetated buffer shall be planted. 15. Use rootwads, topsoil and transplant vegetation generated on-site for the proposed stream construction as close as possible to the existing location from where these items are removed in order to minimize hauling distance and storage duration. 16 Unless otherwise directed by the designer, and where feasible, when beginning construction on a given reach, where clearing is required, use the following sequence: A. Remove transplant vegetation and stockpile as specified on the plans. B. Remove larger trees that can be used on-site for rootwads, footer logs, log vanes or floodplain habitat structures and stockpile as specified on the plans. C. Remove remaining vegetation and dispose of or stockpile as specified on the plans. D. Remove topsoil and stockpile as specified on the plans. E. Remove remaining soil materials as required and stockpile as specified on the plans. 17. Existing non-native vegetation within the proposed limits of construction to be removed as specified in the project specifications. 18. Contractor to provide temporary plant bedding area on site for temporary storage of vegetation transplants. Transplants to be kept watered, mulched and shaded at all times as specified in the project specifications. 19. Construction staging areas to be of adequate size to provide safe and organized storage for rock, rootwads and logs to be used for in-stream structures, mulch, topsoil and other soil material, temporary plant beds for vegetation transplant material, as well as all other related construction materials and equipment. 20. Construction personnel should park all vehicles within the limits of the designated construction staging areas. All other construction equipment and vehicles should be parked within the construction staging areas when not in use. 21. Contractor to be responsible for repairs to any damage to existing utilities, including but not limited to, overhead and underground utilities, curb and gutter, pavement, sidewalks, storm drainage systems, sanitary sewer systems, access roads, or fencing. Any required repairs to be made in accordance with any and all applicable state and or local municipality standards. The Contractor shall consult with the "Call Before You Dig" Toll Free Number 800-632-4949, Mr. Ryan Green at PSNC Energy at 828- 273-7256, and the NC ONE Call Center at least 48 hour prior to beginning any earthwork activities. 22. Contractor shall keep all topsoil stockpiled on site separately from other soil materials. 23. Rock vanes may be installed in lieu ofj-hook vanes at the direction of the Designer. 24. Contractor may conduct minimal hand pruning of overhanging limbs along Hooker Falls Road to facilitate equipment access and to prevent damage to existing vegetation. Such pruning may be performed only with direct supervision of the designer and the NCFS. No other vegetation removal is permitted unless specifically approved by the designer and the NCFS. 25. The Contractor is advised to use caution and to follow the contract documents as well as all applicable regulations with regards to pedestrian and bystander safety. 26. Al] tree and shrub plantings to be performed by NCFS after the completion of construction. ,``~,~t~ruuurt rl~ri r, ~~oQn~ ~ 0~•~3'~~~,: =~~ 2ass7 ~~`~ SCOTS ~;;.~`' , nrirrrr-~ DETAILS NOT TO SCALE J-HOOK ROCK VANE CUT OFF BANKFULL _ SILL FOOTER ROCK ~,-i o GAP/5P~ 1NG= ~ ROCK QDIAMETER ~ SECTION A-A B CUTOFF SILL AT END OF -' `"~.~ "J"EXTENDS UP TO AN ,~ ;_~ ELEVATION OF 0.5 BANKFULLL '. '• BANKFULL ~~ i ~ SCOUR! , I HOLE!I A ~. PLANTINGS ~'i i BANKFULL ' ', ~, 0.9 dma ~ ' - ~ _ _~ o SECTION B-B FLOW-> GRAVEL ~~~~~~ ~~"~~~~~ TAILINGS ~ MIN STREAM BED GEOTEXTILE FABRIC B PLaNrwcs~ BANKFULL 0.9 d 2' - ' r SECTION C-C BANKFULL H 3H FOR COBBLE/GRAVEL, ~', a2O°-30° 6H FOR SAND j , i SCOUR GAPS FOOTER HOL ROCK ~ F-1 VANE LENGTH--I ~ (MAX DEPTH AT 0.9 ~~ GEOTEXTILE OF VANE LENGTH) ~;! FABRIC a SECTION D-D ,~ T NOTES: I. ROCKS SHOULD BE NATIVE OUARP,IED ROCK OR LOCALLY SHOT ROCK,AfJGULAR AND OBLONG. SEE THE PROJECT SPECIFICATIONS FOR ROCK SIZE. 2. ROCKS SHOULD FIT TIGHTL'( WITH MINIMAL SPACES. 3. THE TOP OF FOOTER ROCKS SHOULD BE BURIED TO A MINIMUM OF 3 TIMES 'H' IN GRAVEL/COBLE BED STREAMS AND 6 11MES 'H' IIV SAND BED STREAMS, WHERE 'H' IS THE DISTANCE FROM THE STREAM BED TO THE TOP OF THE HEADEP ROCK, OR AS DETERMINED BY THE DESIG~JEP,. H MUST BE A MINIMUM OF 3'. 4, GEOTEXTILE FABRIC SHOULD BE PLACED ON THE UPSTREAM SIDE OF ROCKS. FABRIC SHOULD BE OVERLAIN ON EXPOSED ROCKS AND BURIED TO A MINIMUM DEPTH OF 2 FT.OR AS DIRECTED BY THE DESIGNEP,. FABP.IC SHOULD EXTEND UPSTREAM A MINIMUM LENGTH OF 6 FT, OR AS DIRECTED 8Y THE DESIGNEP,. FABRIC SHOULD BE BACKFILLED WITH NATIVE BED MATERIAL OR GRAVEL TAILINGS. ~~+~ ~ GEOTEXTIEE FABRIC 5. AT THE DIRECTION OF THE DESIGNER, THE STRUCTURE APMS MA1' BE CONSTRUCTED UP TO AND TIED IN TD AIV ELEVATION LESS THAN BANKFULL IIV ORDER TO ACHIEVE THE CORRECT STRUCTURE ARM SLOPE. ~ti~tinuUUl ~~~`0,~~~ ~~ ~~~~ ~`~~.~~'rESS/p~ ~'yy ,,•~~ _~.. _ .. ~~y$ 2967 ; -c ~ ~. ~,~~,4,/SCrO~Y1~,,,y. AT UPSTREAM END, KEY WING IN TO BANK A MINIMUM OF 5' AT AN ELEVATION EQUAL TO STREAM BED BANKFULL BANIKFULL i WIDTH i WIDTH i a a FLOW ' J J C Y z a m A BANKFULL -, HEADER ROCK, TYP i BACKFILL, TYP. GRAVEL TAILINGS MIN ML EXCAVATED TRENCH FOR SINGLE WING DEFLECTOR CONSTRUCTION ~',Z~O O TAILINGS ~, ~~, FILTER HRAODKR ~ ~.~ FABRIC ~` SET HEADER ROCK BACK - A MINIMUM OF I/3 WIDTH OF FOOT R ROCK --- €-- 'ABED FOOTER ROCK, TYP. ROCKS IN DEFLECTOR ARM SHOULC NOT BE GAPPED OR HAVE ANY SIGNIFICANT SPACES FILTER FABRIC, TYP, SECTIOf~J A-A KEY WING IN TO BANK AT A~ ELEVATION EQUAL TO /Z OF BANKFULL HEADER BANKFULL ROCKS ~FLOW'q/ TO 10% SLOPE BED SECTION B-B `-FOOTER ROCKS ROCKS IN DEFLECTOR ARM SHOULD NOT BE GAPPED OR HAVE ANY SIGNIFICANT SPACES FOOTER J u°~' ROCK AT DOWNSTREAM END KEY WING IN TO BANK A MINIMUM OF AT BANKFULL HEADER AN ELEVATION EQUAL TO ROCKS /3 TO ~/z OF BANKFULL ~ FLOW PLAN VIEW - ~ -__ oz SLOPE --- BED BED FOOTER ROCKS, TYP. NOTES: ROCKS IN DEFLECTOR ARM SHOULD L CLASS "A" STOIJE CAIJ BE USED TO P,EDUCE VOIDS NOT BE GAPPED OR HAVE ANY BETWEEN HEADERS AND FOOTERS. SIGNIFICANT SPACES 2. COMPACT BACKFILL TO EXTENT POSSIBLE OR AT THE p DIRECTION OF THE DESIGNER. SECTION C-C CX D-D SINGLE WING DEFLECTOR DETAILS NOT TO SCALE TEMPORARY CONSTRUCTION ENTRANCE/EXIT L6~~ MIN ~ ~ ~~r ,~ ~ 0 ABOVE / ; ~ ~ '~ EX. GRADE 2"to 3" WASHED STONE GEOTEXTILE FABRIC NOTES: I. 2"TO 3"WASHED COARSE AGGREGATE STONE SAALL BE USED. PAD TO BE 50' L X 20' W X 6" D AT A MINIMUM. 2. RADII TO BE SUFFICIENT TO ACCOMMODATE TURNING RADII RE(IUIPED BY LARGE TRUCKS. 3. ENTRANCE(S) SHOULD BE LOCATED TO PP,OVIDE FOR MAXIMUM UTILITY BY ALL CONSTRUCTION VEHICLES 4. MUST BE MAINTAIfJED IN A CONDITIOf~I WHICH WILL PREVENT TPACKING OR DIRECT FLOW OF MUD ONTO STREETS. PERIODIC MAINTENAI~ICE, II~ICLUDING TOPDRESSING WITH STONE WILL BE NECESSARY. ,~~~``OP~~ CAS w~~y,~~~ :~` ~j~pFtiSS70~tiy . Q SEAL ?fy= 22967 ;~` ,~ ~ ~~ , S C 0 T ~ t ~ ~J ~ ~ `` TYPICAL MATTING LOCATION COIR FIBER MATTING FROM TOE OF CHANNEL TO I FT. BEYOND BANKEULL o J PROPOSED BANKEULL ' c'> PROPOSED ~ ~ CHANNEL TOE NOTES: COIR FIBER MATTING SHALL BE PLACED ALONG THE OUTSIDE BANK OF ALL BENDS AND ALONG BOTH SIDES OF THE CHANNEL IIV TANGENT AREAS, 5. ANY SOIL MATEP,IAL TRACKED OhJTO THE ADJ011'JING ROAD SHALL 8E CLEANED UP IMMEDIATEL'f. DETAILS NOT TO SCALE SILT FENCE 8' MAX. wiR~ ~~~ JIL I I LIV~.L I HUI\I1. SILT FENCE FABRIC AND WIRE BACKING COMPACTED FILL FLOW _ ~ 8.. ;III-- I ._ NOTES: I, WIPE SHALL BE A MINIMUM OF 32" IN HEIGHT. 2, SILT FEIvICE FABRIC SHALL BE A MINIMUM OF 36" 1N HEIGHT AMID SHALL BE ADEQUATELY FASTENED TO THE wIPE AS DIRECTED BY THE DESIGNER, L ° 'STEEL POST - 2'-0" DEPTH ~9~; ;WOOD POST - 3'-0" DEPTH EXTENSION OF FABRIC AND WIRE INTO TRENCH ```~~utiu~u~~~r/~ ~, ~~`~~p~'(K ~AR~1j ~~'~, 'a~.~~f~SS%p~;~y '~ ~''~ _ _ SEAL = 22967 ;~; = fz ~; .,~~,~SC01"~ 11~~,~ TREE PROTECTION FENCE 8' MAX, W000 OR METAL POST fSEE PROJECT SPECIF1CATfONS7 M1N. 4' EXISTING GRADE I RRRNT VIEW UI~ i, MORPHOLOGICAI. TABLES +i Little River at Hooker Falls Variables Existing Channel 1. Stream Type Cq 2. Drainage Area (sq. mi) 35.5 3. Bankfull Width (Wbkf) ft Mean: 114.70 Minimum: N1A Maximum: WA 4. Bank(ull Mean Depth (dbkf) ft Mean: ' 2.71 Minimum: NIA Maximum: WA 5. WidtlUDepth Ratio (Wbkftdbkf) Mean: 42.32 Minimum:. .. WA Maximum: N1A 6. Bankfull Cross-Sectional Area: (Abkf) sq fl,' Me9n: 310.84 Minimum: N1A Maximum: NIA 7: BankffiII Mean Velocity (Vbkf) fps Meam _ N1A Minimum: NIA Maximum: N(A 8. Bankfi,ll Discharge (Qbkf)cfs Mean: WA Minimum:` NIA Maximum! NIA 9: Maximum Bankfull Depth (dmax) ft Mean: 3.59 Minimum: 3.02 Maximum: 4.01 10. Ratio of Low Bank Height to Maximum Mean: 1.32 Bankfull ~pth (Ibhldmax) Minimum: _. 1.02 Maximum:- 173 11. Width of Rlood Prone Area (Wfpa) ft Mean: 277.93 Minimum: NIA Maximum: NIA 12. Entrenbhment Ratio (WfpalWbkf) Mean: 2.42 Minimum: NIA Maximum:. NIA 13= Meander Length (Lm) ft Mean: NIA Minimum: NIA Maximum: NIA 14: Ratio of Meander Length to Bankfull Width Mean: NIA (LmlWbkf) Mirnmum: NIA Maximum: NIA 15. Radius of Cuneture (Rc) ft Mean: NIA Minimum: NlA Maximum: NIA i6. Ratio of Rad'ws of Cun2ture to Bankfull Mean: NIA Wldth(RclWbkf) Minimum, _ ~NlA Maximum: __ N!A 17. Belt Width (Wbll) ft Mean: NIA Minimum. WA Maximums NIA 18. Meander Width Ratio (WblflWbkf) Mean: NIA Minimum NIA Maximum: NIA 19. Sinuosity (Stream lengthlvalley distance) Mean: 1.13 {K) Minimum, N1A Maximum: N1A 20.Valley Slope (ftlft) Mean: 0,0103 Minimum N1A Maximum: N1A 21. Average Water Surface Slope Mean: 0.0091 for Reach (Sang) Minimum NIA Maximum: NIA 22. Pool Slope (Spoof) tUfl Mean: 0.00258 Minimum, D.OD198 Maximum: 0.00317 23. Ratio of Pool Slope to Average Slope Mean 0 28 (Spool'Savg) Minimum:: 0 22 Maximum: 0.35 24. Maximum Pool Depth (dpool) ff Mean: 5.40 Minimum: 5.37 Maximum: 5.43 25. Ratio of Maximum Pool Depth to Bankfull Mean: 1.99 Mean Depth (dpoolldbkf) Minimum: 1.98 Maximum: 2.00 26. Pool Width (Wpod) ft Mean: NIA Minimum: N!A Maximum: NIA 27. Ratio of Pool Width to Bankfull Width Mean: WA (Wpod/Wbkf) Minimum: NIA Maximum: NIA 28. Bankfull Cross-sectional Area at Pod Mean.:: NIA (Apool) sq ft Mmimum: NIA Maximum: NIA 29. Ratio of Pool Area to Bankfull Area Mean:' N1A (ApoollAbkO Minimum' NIA Maximum: N1A 30. Poolio Pool Spacing (p-p)ft' Mean: 93.53 Minimum: WA Maximum: NIA 31. Ratid of Pobl-to-Pod Spacing to Bankfull Mean: 0.82 Witlth (p-plWbkf) . Minimum- N1A Maximum: NIA 32, Pool Length (LpJ,ft Mean: 43.89 Minimum: 37.56 Maximum: 50.21 33 Ratio of PocLLength td Bank(ull Width Mean: 0.38 (Lp/Wbkf) Minimum: 0.33 Maximum:: 0.44 34. Riffle Slope.(Sriif) ftlft ' Mean. 0.05989 Minimum, 0.00401 Maximum. 0.11577 35. Ratio of Riffle Slope to Average Slope Mean: 6.55 (SnftlSaug) Minimum 0.44 Maximum: 12.67 36. Maximum Riffle Depth (dnfn ft Meaa 3.59 Minimum. 3.02 Maximum: 4.01 37 Ratio of Maximum Ri~e'Depth to Bankfu0 Meaa. NIA Mean Depth (dnffldbkf) Minimum: NIA Maximum. NfA 38. Run Slope (Sruri) ftlft Mean: 0.00835 M'mimum: 0.00763 Maximum'. 0.00907 39. Ratio of Run Slope to Avemge Slope Mean: 0.91 (Srun/Savg) Minimum: 0.83 Maximum: 0.99 40. Maximum Run Depth (drun} ft Mean: 4.39 Minimum: NIA Maximum: NiA ~1. Ratio of Run Depth to Bank(ull Mean Depth Mean: 1.00 (druNdbkf) Minimum: NlA Maximum: N1A 42. Slope of Glide (Sglide) ftlft Mean: 0.003D3 Minimum: D.OD000 Maximum: O.DD605 43. Ratio o(Glide Slope to Average Water Mean: 0.33 Slope (SglidelSavg) Munmum ~ p.Op Maximum: 0.66 44. Maximum Glide Depth (dglide) ft Mean: 4.60 Minimum: 4.21 Maximum:. 4.99 45. Ratio of Glide Depth to Bankfull Mean Depth Mean: 1.70 (dglideldbkQ Minimum: 1.55 Maximum: 1.84 Materials: Particle Size Distribution of Channel D16 1.29 mm D35 16 mm D5g 52.6 mm ~+ 262.5 mm D95 Bedrock ,`~~.tttuy n ttn~aJ~,~/ .! Q~ ~9. c¢~ 2567 ~ :~= ~/~~ houN°4 J ti~~ ~~~~''SG r~'t~'`~y4 CONSTRUCTION SEQUENCE T' PHASEI 1. Staging areas, stockpile areas, the construction entrance, limits of silt fencing, and existing access roads will be identified and located as shown in plans. 2. Install the construction entrance. 3. Contractor will begin stockpiling materials in designated staging areas. 4. Install silt fencing to the limits shown on the plans. Silt fencing will be installed around the limits of the limits of the staging/stockpile areas. 5. Install tree protection fencing as directed by the Designer. Flag all vegetation to be transplanted. PHASE II HOOKER FALLS SITE 1. Proposed structure locations will be staked by the contractor. 2. Remove all transplants and stockpile and maintain in accordance with the construction documents 3. Remove any appropriate trees to be used as rootwads and stockpile in accordance with the contract documents 4, Perform required clearing and grubbing. 5. Segregate and stockpile topsoil and other soil material in accordance with the contract documents. 6. Boulders and materials used for stream structures will be delivered through the primary construction entrances and stockpiled in appropriate areas at the site. 7. Stream banks will be reconstructed and structures installed. Perform all topsoil replacement, vegetation transplanting, and seeding. 8. Stream banks will have permanent and temporary seed, straw, and soil amendments and erosion control matting applied to them as work progresses and by the end of each day. Erosion control matting will be installed on top of the seeded, amended, and mulched stream banks according to Construction Documents. 9. Any excavated soil materials not utilized will be stockpiled and maintained according to the Construction Documents. 10. All remaining disturbed areas at the site are to be amended, seeded, matted and/or mulched according to the Construction Documents. 11. Live staking and vegetation transplanting can begin on the completed section of channel if criteria outlined in the Construction Documents for live staking and transplanting are met. PHASE Ill GAS LINE SITE 1. Proposed structure locations will be staked by the contractor. 2. Remove all transplants and stockpile and maintain in accordance with the construction documents 3. Remove any appropriate trees to be used as rootwads and stockpile in accordance with the contract documents 4. Perform required clearing and grubbing. 5. Segregate and stockpile topsoil and other soil material in accordance with the contract documents. 6. Boulders and materials used for stream structures will be delivered through the primary construction entrances and stockpiled in appropriate areas at the site. 7. Stream banks will be reconstructed and structures installed. Perform all topsoil replacement, vegetation transplanting, and seeding. 8. Stream banks will have permanent and temporary seed, straw, and soil amendments and erosion control matting applied to them as work progresses and by the end of each day. Erosion control matting will be installed on top of the seeded, amended, and mulched stream banks according to Construction Documents. 9. Any excavated soil materials not utilized will be stockpiled and maintained according to the Construction Documents. ]0. All remaining disturbed areas at the site are to be amended, seeded, matted and/or mulched according to the Construction Documents. 11. Live staking and vegetation transplanting can begin on the completed section of channel if criteria outlined in the Construction Documents for live staking and transplanting are met. PHASE IV 1. Complete minor grading and sub-soiling of the site to create microtopographic features adjacent to the stream channel. 2. After all construction requiring heavy equipment is complete, remove silt fence and tree protection fence. 3. Begin removal of remaining staging area(s), construction entrance, and any remaining associated materials. 4. Remove and dispose of all trash, metal, and debris from the site according to County and State of North Carolina Regulations. `,`,r,,, a u„ ~ ~~~r~ ~`~~ ~~N CqR~ ~~' ,~ ~ :~; 22567 < ++~ ``~ ~'~~{+'i~S+~~7~ ~~ ~vxv GAS LINE SITE -ULR- 2xp � i TIE J -HOOK ARM TO EXISTING BEDROCK SEAM / AT BANKFULL ELEVATION / / 1 1 ROCK SILL TIED TO J -HOOK 1 ARM TO DEFLECT TRIBUTARY 1 FLOW AROUND J -NOOK 1 `, PSNC ENERGY TRA PIPELINE RIGHT O C3 O 1 I I I I I I 1 , 1 I� I ' REVISION I PROJECT ENGINEER I 9/1/06 JL J ..E-1. DE— ms- 4 ESIGN ' I ro/31_06 _A fw4 ms - I n/u/o6 x PEAMITT—DY—D _ OO NOT USE FOR CORSTR 1 1 i I I I 1 I 1 1 1 I I 1 1 I i I MODIFIED SINGLE WING DEFLECTOR. ACTUAL I NUMBER AND LAYOUT OF ROCK SILLS AND CELLS TO BE DETERMINED BY THE DESIGNER DURING CONSTRUCTION. DEFLECTOR TO BE 'TERRACED DOWN NATURALLY TO THE RIGHT SIDE OF WATER TO FACILITATE FUTURE EQUIPMENTACCESS AT THE PSNC ENERGY TRANSMISSION PIPELINE RIGHT OF AWAY,INCLUDING THE ABILITY OF SUCH EOUIPMENT TO CROSS THE IL-3 STREAM AT THE RIGHT OF WAY. TBM EL= 2021.356)( ASSUMED) if _RAILROAD SPIKE IN 15 WHITE OAK PROPOSED ACCESS, SILLS IN SHADED AREA TO BE LOWERED SLIGHTLY J<; TO FACILITATE AND DIRECT EQUIPMENT AND PEDESTRIAN ACCESS. 1 1 \ 1 , 1 PSNC ENERGY TRANSMISSION' PIPELINE' RIGHT OF WAY ROCK CELLS TO BE BACKFILLED TO FINAL GRADE 1 WITH GRAVEL: TAILINGS. SELECTED ROCK CELLS THAT ARE TO BE PLANTED WITH NATIVE SPECIES VEGETATION )SHALL'. BE BACKFILLED TO WITHIN 2 FEET OF FINAL GRADE USING GRAVEL .TAILINGS, WITH THE REMAINING BACKFILL 1 \"TO GRADE 'CONSISTING OF. TOPSOIL EXCAVATED ON SITE \ \ \ DURING CONSTRUCTION. ROCK CELLS TO BE PLANTED', \ \ WILL BE IDENTIFIED DURING CONSTRUCTION BY THE DESIGNER AND NCFS. 1 1 , 1 1 PROJECT REFERENCE NO. SHEET NO. HOOKER FALLS 1 4 PLAN & PROFILE 4-oMUL-KEY ENGINEERS G CONSULTANTS 20 0 40 44F 53/o%,'Yy �. Q AL =$ 22967 HOOKER FA~~S SITE -E~R- \. ~~ Hooker Fall s Vl I N 11'1111111!!/ o6re ar oESCxnnaY \\\\ i'~~/I 9N06 1 6[iEU~iIC OE51[N ~~~ d'(Yl CARp~~ ~~~ 4,n/~ . ~YU ~SI~Y ~`~ 4 ~ 1/4/06 A f(AYIT7IK./6p/W/W Q _,~aa ~~ a4 ~ ~i o ~ /I~ ~<s o ~~, 22957 ~, ~ ~ ~i ~ G ~',y! c .o Y/ \~ I//llllllllYll ,~ \ __ -'-- \ /, "/ ~ \ - \\~ \, ... - ._., _ s ~, ''~ EXISTING ERODED AREA Little Hiver . .-- 1 ,- - I /' ., % i~ ~~ ~ +~ ~ _, ., ~ - ~. }J ~i Prro/ecr exc~eeee PROJECT REFERENCE ND. SHEET N0. HOOKER FALLS 5 PLAN f~ PROFILE X9P UUE IDU CUXUPXUCYIUX ~MULKEY ENGINEE125 S CON9ULTANT3 ?0 0 40 ~i PROPOSEp ACCESS, SILLS IN SHADED AREA 70 BE LOWERED SLIGHTLY TO FACILITATE AND DIRECT EQUIPMENT AND PEDESTRIAN ACCESS. >~ / . '- f _. r - - ~ ~ .-- ~:1~ `~- ~', ~., ~/ ~ ~~ ~~ ~~, '~ r ~ REBUILD EXISTTING ERODED SHORE LINE USING MODIFIED SfNGLE WING DEFLECTOR. ACTUAL NUMBER AND LAYOUT OF ROCK SELLS AND CELLS TO BE DETERMINED BY THE DESIGNER DURING CONSTRUCTION. DEFLECTOR TO BE `TERRACED'DOWN NATURALLY TO THE RIGHT SIDE OF WATER. r~I' ~ ;'1 ", '• ROCK CELLS TO BE BACKFILLED TO FINAL GRADE \ " ROCX SILLS TO BE KEYED ~~Y WffH GRAVEL TAILINGS. SELECTED ROCK CELLS THAT INTO EXlSTJNG TOE OF SLOPE ARE TO BE PLANTED WITH NATNE SPECIES VEGETATION t~YV~ .~I TOE OF r } I ~~ SHALL BE BACKFlLLED TO WITHIN 2 FEET OF FINAL GRADE EXISTING SLOPE ~ USING GRAVEL TAILINGS,WITH THE REMNNING BACKFILL } rI ~ TO GRADE CONSISTING OF TOPSOIL EXCAVATED ON SITE hti~~ DURING CONSTRUCTION. ROCK CELLS TO 8E PLANTED ... `, " WILL BE IDENTIFIED DURING CONSTRUCTION BY THE ,. ) `.4, - _ . _ DESIGNER AND NCFS. ---~ --- --- -- - _, ,I -- --- - , ---- _ - O/ERLOOK I __---~-' ..HOOKER FALLS ROAD.(SOlU _ -------- ------- - _____ _ __ _____ - TBM EL- 1997.90 (ASSUMEDI ---- - - EXISTING SECTION Of HOOKER FALLS SD1L ROAD NNL IN 10'YELLOW POPLAR _ .. TO BE IMPROVED TO 10 FODT WIDE GRAVEL ACCESS 1,992. _ _ . ~ _. ~ ``~- - - -- (- - I ~~- --H- 11,992 - __. G STHEAMBE~ f , -i - ~- .~ ~XISTIN ~ - f I ~ ;I 1 0 0+00 1+00 2+00 3+00 4 `~~~.; _ J-HCOK ROCK VANE, J !rV SEE DETAL ~'; ~` .$ , ~ ~ ~, 4 .~ ~~ WOODS i MODIFIED SINGLE WING ~DEFLECTOR,SEE DETAIL „~ - J r , ~ ;, ~~ \ ~. -. __ ~~ - , .:_ _ \ 1 - -__ -.. . .i ,'~ ~ ~, ~. BEGIN EXISTING SOIL ROAD SECTION OF HOOKER FADS ROAD ~ ~ y , / ___-_- ~~i//' SnOr~C ~`~~~ FOR MORE DETNL ~ / \\ LIMITS OF DISTURBANCE %I !, ` `~ f ,, /~~ '----- yCDRER fq~ '~R!lIRRRIIIIlR~1 1 / ~m r' /._~ ~_ ~~ ' ``` --- ------ RoaD nQ FcbT cRAVEU Hooker ~\ GASUNE SITE ~/ ' .' ~a, ~ s '+ y "`-- Falls _ . ~" O SEf PLANSHEET 4 / r ' ~ ( _------- -_-_ ---° FOR MORE DETAL ~° I V 4 ~ _ -- \. r ~ ~. .\ _ ~ / ; \\,~ LIMITS OF DISTURBANCE \'Y ~' - \` ~ , =r r ' r ~: r -r ~ r , r ~ ~ I r r , i ~ i (~ r '. r~ r r; rr I r ~ ~ , rr r, I , r ; it ~ I r ~ ~r i ~ rr =i~ ~~ I~ i ~ i ~I WOODS r ~ r ~ I' i ~ `' r i. r i ii ~i ii r Y r ~ '~r ~ ,I } ~ ALL CONSTRUCTION EQUIPMENT ~ r .~Cf55 SHALL BE CONFINED 70 HOOKER . ~ ~ FAi15 ROAD AND HO(11' ROAD i, ~..~ ~' I I _i I HOLLY ROAJD __- !b fLt7T GRAVEU _--__ i -----""""'--- ~ ~ ~ ~ ~ b~ r r I. i ~ ~ ii ~' ~ I i I I ~'~-_ I J q i I r GRA¢fL PARXNG LOT i i i r ~ r! r ~ i i- ~~ i i r r \ ~ EXISTING GRAVEL PARKING L07 TO h ~ ~ ; REMWN UNOBSTRUCTED AT ALL TIMES ~ , ~ r 1-~ ° ¢ o ~ % ~ ` ~ TEMPOIARY CONSTRUCTION ENTRANCE/ EXIT AT EXISTING GRAVEL ENTRANCE WOODS INy1111l111/, vvm + srxwrK mswx ``~~~~`,~~ /+ARpli ~=rrm ~ ~~ ms~ EROSION CONTROL `~ ~ •.C ~ r/// usioc a rcewrr`uismmim g9 RAY tlA4 FAR CAi3IAU6YlAN =,~okESS,o~y~ /-, -~- M U LKE Y I ENGINEE R3 6 CONSULTANTS AL ~ ~ WOODS 50 0 100 ~` 22967 !/, da. • ~i ~,4, •o~G~iVL ~'r°,\~ ~~ HIKER FAILS SITE ~ /j~' ry'' ' V ~~ SEE PLANSHEE7 5 ~~ MODIFIED SINGLE WING ~ DEFLECTOR,SEf DETAL ` `">~~ s{ . ;, ~~~~~ ~t ~~~t ~J `, i, --.i EXISTING SOIL SECTION OF HOOKER FALLS RDAD TO BE IMPRO/ED TO 10 F00T WIDE GRAVEL ACCESS EXISTING ERODED AREA ROAD BY NCFS PRIOR TO BEGINNING OF CONSTRUCTION WOODS CONTRACTOR SHALL STAGE FJl CONSTRUCTION MATERIALS AND EQUIPMENT WITHIN THE LIMITS OF THE f815T1NG NCFS f0U1PMENT STORAGE AREA AT HOLLY ROAD ~. NOTE: THE PROJECT SITE 1S LOCATED EMIRELY WITHIN THE OMITS OF THE WPOM STATE FOREST !NORTH CAROLINA FOREST SER/1CE1