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Home My WebLink About20191132 Ver 1_Impacts_Plans 8-5-20_20200819SITE N Little Tennessee Umbrella Mitigation Bank East Buffalo Mitigation Site Little Tennessee River Basin 06010204 Graham County, North Carolina Title Sheet 0.1 Project Overview 0.2 Project Valley Overview 0.2.1 Wetland Crediting 0.2.2 General Notes and Symbols 0.3 Construction Sequence 0.3.1 Typical Sections 1.1-1.8 Stream Plan and Profile Sheets East Buffalo 2.1.1-2.1.4 UT1 2.2.1 UT2 2.3.1-2.3.2 UT3 2.4.1-2.4.4 UT4 2.5.1 UT5 2.6.1 Planting Plan 3.0-3.3 Invasives Treatment Plan 3.4 Erosion and Sediment Control 4.0-4.2 Additional Grading 5.0-5.3 Details 6.1-6.10 Vicinity Map Not to Scale BEFORE YOU DIG! IT'S THE LAW! CALL 1-800-632-4949N.C. ONE-CALL CENTER Sheet Index Project Directory Engineering: Wildlands Engineering, Inc License No. F-0831 167-B Haywood Rd. Asheville, NC 28806 Jake McLean, PE 828-774-5547 SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO NOT USE FORCONSTRUCTIONPRELIMINARY PLANS ISSUED AUGUST 4, 2020 X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Cover Notes.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaTitle Sheet005-45020HBERJM0.1August 4, 2020Surveying: Brad Kee Kee Mapping and Surveying, PA P.O. Box 2566 Asheville, NC 28801 828-575-9021 Bank Sponsor: Wildlands Holdings VI, LLC USACE Project Manager Steve Kichefski U.S. Army Corps of Engineers Wilmington District, Asheville Field Office 151 Patton Avenue, Suite 208 Asheville, NC 28801 (828) 271- 7980 USACE Action ID No. SAW-2019-01296 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NOT USE FORCONSTRUCTION0'250'500'750'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Overview.dwg August 4, 2020 005-45020 HB ER JM 0.2 August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina Project Overview CECECECECECECECECECECECECECECECECECE CE CE CE CECECECECECECECECECECECECECECE CECECECECECECECECECECECECEC E C E CE CECECE CE CE CE CEC E C E C E C E C E CECE CE CE CE CE CE CE CECECECECECECECECECECECECECECECE CE CE CE CECECECECECE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECEOUOUOUOUOUOUOUOUEOUERAMLONGHORN, LLCPORTION OF PIN: 5662-00-09-0043DB: 374 PG: 420PC: DB PG: 1000RAMLONGHORN, LLCPORTION OF PIN: 5662-00-09-0043DB: 374 PG: 420PC: DB PG: 1001RICHARD WAYNE PENNINGTON, JR.& WIFE, CYNTHIA PENNINGTONPOTION OF PIN: 5662-00-09-0042DB: 240 PG: 770CARL D. LEE &WIFE, JOAN, B. LEEPIN: 5662-00-09-0024DB: 260 PG: 609PG: 5 PG: 980RICHARD PENNINGTON AND WIFE,MARGARET PENNINGTONPORTION OF PIN: 5662-00-09-0042DB: 128 PG: 799REF: DB: 126 PG: 713REF: DB: 117 PG: 746HUGH DARRELL ORR ANDWIFE, PATRICIA ORRPIN:5662-00-09-0028DB:72 PG: 553JESSE LOVELACE ANDWIFE, KRISTAN LOVELACEPORTION OF PIN: 5671-01-00-0022DB:348 PG: 844(TRACT 2 MYERS INDIVIDUAL DEED)U.S.F.S. TRACT N 723cPB: 4 PG: 608U.S.F.S. TRACT 1091aPB: 4 PG: 608JESSE LOVELACE ANDWIFE, KRISTAN LOVELACE PORTION OF PIN: 5671-01-00-0022DB: 348 PG: 844(TRACT 2 MYERS TRUST DEED)U.S.F.S. TRACT N 1091aDB: 42 PG: 247REF: DB: 83 PG: 94U.S.F.S. TRACT N 752oJAMES DARRELL COLLINS, SR.AND WIFE, ROMA GAIL COLLINSPIN: 5662-00-09-0033 PORTION OF DB: 214 PG: 363BO COLLINS AND WIFE,HELEN M. COLLINSPIN: 5662-00-09-0033DB: 367 PG: 550RICHARD PENNINGTON ANDWIFE, MARGARET PENNINGTONPORTION OF PIN: 5662-00-09-0042DB: 128 PG: 799REF: DB: 126 PG: 713BONNIE GERRYRICHARD SCHLEYROBERT G. CUSHMAN (LE)HARRIETTE C. CUSHMAN (LE)PIN: 5662-00-04-0006DB: 352 PG: 603PB: 5 PG: 980BRITTANY DANIELLECARPENTERPIN: 5662-00-07-0020DB: 345 PG: 163WILLIAM L. PRITCHETT JR.VALERIE N.PRITCHETTPIN: 5662-00-07-0011DB: 141 PG: 579PB: 4 PG: 29LOTS 11 & 18SUSAN INMANWILLIAM H. HOUNSHELLAND WIFE, CAROLYNHOUNSHELLPIN: 5662-00-07-004ADB: 330 PG: 487PB: DB PG: 2023PB: 4 PG: 29LOTS 4 & 19ARTHUR GREER ANDWIFE, SUSAN GREERPIN: 5662-00-07-0001DB: 315 PG: 588PB: 4 PG: 29LOT 1KLAUS HANNU MELARTI ANDWIFE, MARITA ULRIKA MELARTIPIN: 5662-00-04-0001DB: 246 PG: 605PB: 4 PG: 241REF: DB:83 PG: 640EASEMENT EXCLUSIONAREA14.9 ACRESLOT 2SEE TABLE 1LOT 3SEE TABLE 1TABLE 1. ADDITIONAL LANDOWNER INFORMATIONLOT 2LARRY D. MURRELL ANDWIFE, JEANEEN R. MURRELLPIN: 5662-00-07-0002DB: 259 PG: 157PB: 4 PG: 29LOT 2LOT 3STEPHEN D. POLACHEK ANDWIFE, DEBORAH L. POLACHEKPIN: 5662-00-07-0003DB: 328 PG: 687PB: 5 PG: 351 LOT 3REF: PB: 4 PG: 29EXISTING LOWER DIRTROAD TO BE ABANDONEDAND CROSSINGS REMOVEDEXISTING UPPER DIRT ROADTO BE NATURALIZEDEXISTING LOWERDIRT ROADUT3UT1UT2UT4UT4AUT4UT6UT7UT5EAST BUFFALO CREEKUT3UT2EAST BUFFALO ROADUT4BHISTORIC FIELD/ROADOVERBURDENTO BEREMOVEDBURIEDHYDRICSOILSEXISTING PORTION OF PIN: 566200090043TO BE SUBDIVIDED OR RECOMBINED WITHADJACENT MELARTI PARCELRE-ESTABLISHMENTEXISTING CLAYDRAIN TILEB6BURIEDHYDRICSOILS14" Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION0'80'120'200'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Overview.dwg August 4, 2020 005-45020 HB ER JM 0.2.1 August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina Project Valley OverviewOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOHEOHE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECEOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUUT3UT1UT4AUT4UT6UT7 UT 5 UT3UT2EASEMENT EXCLUSION AREA14.9 ACRESEAST BUFFALO ROADSHEET 5.2SHEET 5.1SHEET 2.2.1SHEET 2.4.1SHEET 2.3.1SHEET 2.4.2SHEET 2.4.3SHEET 2.4.4SHEET 2.1.4SHEET 2.1.3SHEET 2.3.2SHEET 2.1.1SHEET 2.1.2SHEET 2.6.1SHEET 2.5.1STATION 3000+95END UT2 REACH 1 - PRESERVATIONBEGIN WORK UT2 REACH 2STA. 4000+52END UT3 REACH 1 - PRESERVATIONBEGIN WORK UT3 REACH 2NO STREAMWORK ON UT4ASTA. 1003+66EAST BUFFALO CREEK REACH 1 - ENHANCEMENT IISTA. 3+96 END UT1 - ENHANCEMENT IISTA 1000+00BEGIN EAST BUFFALO CREEK REACH 1 -ENHANCEMENT IISTA 1005+74END EAST BUFFALO CREEK REACH 1BEGIN EAST BUFFALO CREEK REACH 2 - RESTORATIONSTA. 1013+57CONTINUE EAST BUFFALO CREEKREACH 2STA 6002+48END UT5 REACH 2STA 1017+06END EAST BUFFALO CREEKREACH 3 - ENHANCEMENT IISTA. 4010+46END UT3 REACH 2BEGIN UT3 REACH 3 - ENHANCEMENT ISTA. 5002+29END UT4 REACH 2STA 1014+30END EAST BUFFALO CREEK REACH 2BEGIN EAST BUFFALO REEK REACH 3 -ENHANCEMENT IISTA 1008+37 CONTINUE EAST BUFFALO CREEK REACH 2STA 3025+33END UT2 REACH 25000+65END UT4 REACH 1 -PRESERVATIONBEGIN UT4 REACH 2 -ENHANCEMENT ISTA 6000+00END UT5 REACH 1 - PRESERVATIONBEGIN UT5 REACH 2 - ENHANCEMENT IIPROPOSED POWERLINE RELOCATION,ABANDON OLD LINEAND EASEMENTEXISTING POWERLINE ANDEASEMENT TO BERELOCATED AS SHOWNFALL 2020EAST BU F FA LO CREEKSTA 0+00BEGIN UT1 - ENHANCEMENT IISTA 4014+26END UT3 REACH 3STATION 3001+46BEGIN UT2 - ENHANCEMENT I CREDITSTA. 4000+52BEGIN UT3 REACH 2 -RESTORATION CREDIT OUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOHE OHE CECECECECECECECECECECECECECECECECE CECECE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECEOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUE0+001+00 1+69 0+001+002+002+540+001+002+002+54G!G2G3G4206520702075208020702085208020752060205520502065206020502055EAST BUFFALO ROADUT3UT2EAST BUFFALO CREEKUT 5UT4 ABCDDDEFHGIJUT4AKXS 2XS 1EXCLUSION PARCEL VIA SUBDIVISIONDGWG 1GWG 2GWG 3GWG 4B1B2B3B4B5B6B7B8B9B10B11B12HARVEST BIOTA,HARVEST BED MATERIALFOR REUSE (REFER TO 0.3.1),THEN FILL PER GRADINGPLAN OR APPLY FLOODPLAINPOOL AND DEPRESSIONDETAIL AS DIRECTEDPROPOSED STREAMALIGNMENTDISTURBANCE TO BE MINIMIZEDDURING CONSTRUCTION OF UT3GRADE OUT HISTORIC ROAD BED ANDCROWNED FIELD TO RELIC HYDRIC SOILSPLUG AND REMOVEFIELD LOCATEDDRAIN TILE OUTLETPLANT EXISTING WETLANDS PERPLANTING PLAN SHEETS ASPRIMARY ENHANCEMENT ACTIVITY(TYP)PROPOSED LOCATION OFRELOCATED UTILITY LINEREMOVE CLAYDRAIN TILE TOUPGRADIENTPROPERTY LIMITSGWG 520702075208020852090207020752080208520900+000+501+001+502+002+50HISTORIC FIELD/ROAD20552060206520702075205520602065207020750+000+501+001+501+70HISTORIC FIELD/ROADRE-ESTABLISHMENTRE-ESTABLISHMENTB614"0'50'100'150'(HORIZONTAL)NX:\shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Overview.dwg August 13, 2020 005-45020 HB ER JM 0.2.2 August 14, 2020 East Buffalo Mitigation Site Graham County, North Carolina Wetland Crediting Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION WETLAND RESOURCESNAMEEXISTING WETLAND ACREAGERESTORED ACREAGEAPPROACHWetland A0.07N/AN/A1Wetland B0.03N/AN/A1Wetland C0.01N/AN/A1Wetland D1.28 (TOTAL)0.41EnhancementWetland D1.28 (TOTAL)0.66RehabilitationWetland E0.230.23EnhancementWetland F0.040.04EnhancementWetland G0.01N/AN/AWetland H0.01N/AN/AWetland I0.020.01EnhancementWetland J0.050.05EnhancementRelic Wetland K0.001.02ReestablishmentTotal1.752.47Wetland K Re-establishment Cross SectionsRE-ESTABLISHMENT (1:1)REHABILITATION (1.5:1)ENHANCEMENT (3:1)XS 2XS 1WETLANDS A, B, C ARE CONSISTENT WITH OLD STREAMBED AND ARE NOT BEING SOUGHT FOR WETLAND CREDIT1GROUNDWATER GAUGE (GWG #)CREDITSPROPOSED RATION/A3:11.5:13:13:13:13:11:10.000.000.000.1350.4420.0780.015N/AN/A0.0050.0171.0171.708N/AN/AN/AN/A1.GAGES 1-4 WERE INSTALLED AT INDICATED LOCATIONS IN MARCH2020 TO RECORD WETLAND HYDROLOGY DURING GROWINGSEASON.2.GAGE 5 WILL BE INSTALLED FOR POST CONSTRUCTION MONITORING.3.GAGE 4 WILL BE MOVED FURTHER NORTH TO THE CENTER OF THEPROPOSED WETLAND AREA FOR POST CONSTRUCTION MONITORING.MITIGATION PLAN NOTE:SOILINVESTIGATIONBORINGDEPTH TOHYDRICINDICATORB1NON-HYDRICB26" - F3B3NON-HYDRIC16" - F3B40" - F3B54" - F3B6NON-HYDRIC18" - F3B7NON-HYDRICB82" - F3B9NON-HYDRICB107" - F3B112" - F3B126" - F3SOIL BORING LOCATION (B#)REV. 5/11/205/11/20 Updated wetland K grading per soil scientist report SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Cover Notes.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaGeneral Notes and Symbols005-45020HBERJM0.3August 4, 2020Existing Thalweg Existing Property Line Existing Major Contour Existing Minor Contour Existing Overhead Utility Existing Overhead Utility Easement Existing Power Pole Existing Fence Existing Storm Pipe Existing Soil Road Existing Wetland Existing Tree Existing Bedrock Existing Building Existing Treeline Survey Control Point Existing NCDOT Right of Way Existing Top Of Bank Proposed Conservation Easement Proposed Thalweg Alignment Proposed Bankfull Proposed Major Contour Proposed Minor Contour Proposed Safety Fence Proposed Silt Fence Proposed Limits of Disturbance Proposed LOD Exclusion Easement Exclusion Area Mapped FEMA Cross Section Proposed Overhead Utility Proposed Overhead Utility Easement Proposed Power Pole Proposed Fence Proposed Log J-Hook See Detail 4, Sheet 6.4 Proposed Log Vane See Detail 2, Sheet 6.4 10+00 OUE OUE 100 100 PROJECT NOTES: Topographic survey was completed by Kee Mapping and Surveying, PA in July 2019. Parcel boundary survey completed by Kee Mapping and Surveying, PA in October 2019. Topographic data supplemented with Lidar data from Feb - April 2017. Riffle selection will be varied based on available materials at the Engineers' discretion. Field coordination will be required.XXExisting Features Proposed Features Erosion Control Features Proposed Various Constructed Riffles Per Plans See Sheet 6.4 Proposed Brush Toe See Sheet 6.3, Detail 1 Proposed Bank Grading and Invasive Treatment See Plans for Additional Notes Proposed Floodplain Roughening Proposed Vegetated Stone Toe Protection See Sheet 6.3, Detail 4 Proposed Structures SAF SAF [x][x] CE CE CE Proposed Haul Road See Detail 2, Sheet 6.11 Proposed Temporary Rock Sediment Dam See Detail 3, Sheet 6.8 Proposed Temporary Crossing See Detail 2, Sheet 6.8 Proposed Construction Entrance See Detail 1, Sheet 6.9 Use Existing Drive Entrance Staging/Stockpile Areas See Detail 1, Sheet 6.11 Straw Wattles See Detail 1, Sheet 6.8 LOD LOD Proposed Rock Step Proposed Log Step Proposed Cascading Riffle-Pool Sequence Proposed Level Spreader See Sheet 6.10, Detail 2 Proposed Rock Slide Proposed Rock Drop Proposed Tree Removal Proposed Lunker Log Proposed Floodplain Pool See Sheet 6.10, Detail 1 OU OU OU OUE OUE SAFSAFProposed Tree SaveXXXOUOUOU Proposed Rock Cascade Proposed Live Willow Logs Proposed Live Tag Alder Rootball T SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Cover Notes.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaConstruction Sequence005-45020HBERJM0.3.1August 4, 2020Construction Sequence: THE FOLLOWING FOUR ITEMS MAY BE COMPLETED IN THE ORDER PREFERRED BY CONTRACTOR, EXCEPT AS DIRECTED BY THE DESIGNER: 21.Install all in-stream and in-bank bioengineering such as brush toe and sod mats according to details and specifications. 22.Sod mats may be used in lieu of coir fiber matting to stabilize all stream banks on site at the discretion of the Designer. Coir fiber matting may be used where sod mats are not available or if coir fiber matting is preferred at the discretion of the Designer. 23.Seed (with specified temporary and permanent seed mix) and straw mulch areas where the coir fiber matting is to be installed. 24.Complete grading and shaping of the adjacent floodplain areas according to grades shown on the plan. 25.Once the new channel and banks are stabilized, follow pump around system detail to turn flow from the existing channel into the new channel. 26.At this time, or a later time, backfill abandoned channel sections with stockpiled soil according to the grades shown on the Plans. Non-native and invasive vegetation (e.g. Chinese privet and multiflora rose) shall be entirely removed from the existing channel prior to backfilling. Vegetation on abandoned channel banks to receive fill shall be removed prior to the backfilling of abandoned channels to ensure flow paths are blocked and backfill can be compacted. 27.General note: Prepare floodplain for seeding by applying stockpiled topsoil to any areas of floodplain that have been cut below the topsoil horizon between bankfull (top of bank) and the top of terrace or grading limits, ripping, and raking/smoothing. Seed with specified temporary and permanent seed mix and mulch. Any areas within the conservation easement that have not been graded with topsoil shall be treated according to the planting plan. 28.If at any time circumstances should arise where water has been turned into the new channel and additional work must be done on the floodplain, erosion control devices will be installed to protect the new channel from sedimentation. 29.Stabilize areas of the upper portion of the site that will not be further disturbed. Close out any access, haul or staging areas that are no longer necessary. Permanent close out of such areas shall include soil ripping to address compaction. 30.Proceed to the lower portion of the site that has both online and offline channel reaches to be constructed (UT4 Reach 2, UT3 Reach 3, UT5 Reach 2, and East Buffalo Creek Reach 3). Where applicable, construct the proposed stream channels in the dry to the grade and dimensions specified in the cross-sections and profile. When dry channels cannot be constructed without impacting existing channel due to proximity, pump around existing channel during work on offline channel. 31.Construct crossings and stabilize and prepare associated erosion and sediment controls along haul roads prior to crossing creeks. Install silt fence and/or safety fence to protect stream and wetlands from primary or secondary impacts from the work. 32.Utilize pump around operation for all bank grading and clearing on these reaches and return to same day stabilization requirements for all in-stream work. BIOTA HARVESTING 33.Contractor or Designer, as determined by final agreement between Contractor and Designer, shall collect and relocate aquatic biota wherever possible along the existing stream before completely dewatering or applying fill to old channel. 34.Existing stream channels to be abandoned may be cleared (without grubbing) to provide access to streams for harvesting of biota. Minimize disturbance to the maximum extent possible. Do not clear potential transplant material without designer approval (alders and other small diameter native trees and shrubs) 35.Using kick nets and seines, capture and relocate animals from existing channels to be abandoned and relocate them to stable channels that will undergo minimal or no additional disturbance during the project construction activities. 36.After relocation, attempt to relocate substrate to new channels while both channels have water facilitated through groundwater, pumping or other diversion or partial diversion. Implement measures to ensure that flowing water does not come into contact with work area and cause erosion and sedimentation to live water downstream. This may involve partial pumping of flow to reduce flow below erosive levels while still facilitating adequate habitat to support organisms being relocated. Construct and/or seed riffles and/or pools with native material retrieved from wet existing channel. ROAD AND CROSSING DECOMMISSIONING (SOUTH SIDE OF EAST BUFFALO ROAD) 37.Utilize existing entrances for one-time access. Existing entrances may be supplemented as necessary due to site conditions to address erosion control concerns. Maintain road free of sediment and ensure road is protected from equipement during access to these entrances. 38.Do not haul in imported materials or export materials without installing a temporary construction entrance. 39.Existing primary roads should be decommissioned from the highest elevation to the lowest, removing access and crossings as the contractor progresses toward the construction entrance. 40.Crossing decommissioning shall utilize on-site materials to the maximum extent possible. Any grading not shown in the Additional Grading plans or called for in the details or specifications will require designer approval. 41.After crossings have been decommissioned, regraded entries shall be established to deter further entry at existing entrances. Contractor shall utilize local materials and fill to establish restriction of access. CONSTRUCTION DEMOBILIZATION 42.Remove any remaining temporary stream crossings. 43.The Contractor shall ensure that the site is free of trash and leftover materials prior to demobilization of equipment from the site. 44.Complete the removal of any additional stockpiled material from the site. 45.Demobilize grading equipment from the site. 46.All rock and other stockpiled materials not utilized in site grading must be removed from the limits of disturbance and conservation easement. All areas outside the conservation easement shall be returned to pre-project conditions or better. 47.Rip, seed, mulch, and stabilize staging areas, stockpile areas, haul roads, and construction entrances. Pasture seed mix is to be applied to areas of disturbance outside of the conservation easement. Staging areas and hauls roads which have been compacted due to heavy equipment traffic must be ripped and/or disked to depth of 8” at a minimum. PLANTING 48.Complete transplanting of on-site material as directed during the course of construction. 49.Following construction, by area, or after all site grading activities are complete, install live stakes and herbaceous plugs along the stream banks according to the plans and specifications. General Construction Notes for All Reaches 1.All erosion and sediment control practices shall comply with the North Carolina Erosion and Sediment Control Planning and Design Manual. All project activities shall comply with all permit and waiver requirements and conditions. Issued permits and waivers, as applicable, will be included in the project manual. 2.Where feasible, more than one offline section may be constructed concurrently. Offline sections shall be tied online sequentially from downstream to upstream. Refer to pump around system notes for other tie-in requirements. See Biota Harvesting Sequence when diverting existing stream flow to proposed channel. 3.Contractor will install pump around systems to divert flow while working in live, flowing channels and when executing tie-ins. The Contractor shall operate and maintain the pump around system continuously until the disturbed area is stabilized. 4.Contractor shall disturb only as much channel bank as can be stabilized with temporary seeding, mulch, and erosion control matting by the end of each work day. 5.Clearing and grubbing activities on active channels shall not extend more than 150 linear feet ahead of in-stream work. When these activities may result in erosion and sedimentation to the stream channel, a pump around system is required to be in place until all cleared and grubbed areas are stabilized. 6.All graded areas with slopes steeper than 3:1 will be stabilized within seven (7) working days. All other areas will be stabilized within 14 working days. 7.When crossing an active section of new or old stream channel, a temporary stream crossing – timber mat shall be installed according to the detail and specification. 8.Locations for staging and stockpile areas and temporary stream crossings have been provided on the Plans. Alternative staging and/or stockpile areas and stream crossings may be used by the Contractor provided that the areas are within the limits of disturbance, all practices comply with the North Carolina Erosion and Sediment Control Planning and Design Manual, and that the Designer approves the areas prior to implementation. The type of stream crossing may not be modified without modification to the permit. 9.Various types of constructed riffles are specified on the plans. Contractor shall build the specific types of constructed riffles at locations shown on the Plans. Changes in constructed riffle type must be approved by the Designer. 10.Contractor is to make every effort to avoid damaging or removing existing trees where possible and as directed by the designer. 11.Under no circumstances will the Contractor exceed the limits of disturbance as shown on the Plans. 12.Any off-site borrow and waste required for this project must come from a site with an approved erosion control plan, a site regulated under the Mining Act of 1971, or a landfill regulated by the Division of Solid Waste Management. No borrow or waste soil is anticipated on the project and the designer shall be notified if any borrow or waste of soil is to occur in order to update permits as necessary prior to commencement of such activities. 13.Existing trash/debris generated from demolition activities and/or denoted within the plans must be disposed of at a facility regulated by the NC Division of Solid Waste Management or per Division of Solid Waste Management or Division of Water Resources Rules and Regulations. INITIAL SITE PREPARATION 1.Contact North Carolina “One Call” Center (811) before any excavation. 2.Contact Division of Energy, Mineral and Land Resources before any work begins on the project and notify them of the start date. 3.Mobilize equipment and materials to the Site. 4.Identify and establish construction entrance, staging and stockpile areas, haul roads, silt fence, tree protection fencing, safety fencing, and temporary stream crossings as indicated on the Plans for work areas. 5.All haul roads shall be monitored for sediment loss daily. In the event of anticipated sediment loss, divert water off haul roads into grassed strips, install silt fence or other acceptable sediment and erosion control practices to reduce velocities and trap sediment. In area where temporary diversions or barriers are necessary when roads are not in use, wattles may be used 6.Set up temporary facilities, locate equipment outside of 25’ trout buffers and preferably within designated staging areas. Use staging areas to contain materials and stockpile soil for future use. 7.Install and maintain an onsite rain gauge and log book to record the rainfall amounts and dates. Complete the self-inspection as required by NCDEQ and NCG01 permit. STREAM, WETLAND AND ADJACENT CONSTRUCTION 8.Perform any necessary clearing and grubbing in phases as work progresses. Bank vegetation and vegetation immediately adjacent to live channels shall be left undisturbed as long as possible. When physical invasive removal is proposed (see plans, Sheet 3.4), remove all non-native and invasive vegetation prior to beginning the channel or wetland construction using a pump around and restabilizing these areas upon completion when the work may result in erosion and sedimentation to streams or wetlands. Remove or restabilize all fine material that may be washed downstream prior to returning flow to channels. 9.Prior to mobilization, Contractor shall prepare a refined sequence of work and construction schedule for review and approval by Designer. 10.Contractor shall begin work on the Northeast side of the site. Install construction entrances, staging areas, and crossings and stabilize haul roads for mobilization to active work areas. 11.Flag trees and clearing and grubbing areas for designer approval prior to commencing removal. 12.When clearing and grubbing or conducting grading work in or on the bank of creeks, set up pump around system prior to commencing grading operations. Disturb only that area along the creek channel and banks that can be stabilized with seed and permanent matting, or temporary matting, by the end of the day. 13.Remove and grub invasive species prior to commencing earth moving activities. Where applicable, harvest and stockpile topsoil (separately) for reuse. 14.When grading the wetland reestablishment area, commence by locating subsurface drainage pipes. Complete larger cuts prior to commencing fine grading of adjacent areas. Install slope breaks using soil berms to reduce the effective slope length that water will travel. Use silt fence or wattles to divert flow from upgradient around the work area to East Buffalo Creek across original ground. Any areas that have been disturbed should be matted and/or stabilized with check dams prior to routing diverted flow across these areas. 15.Soil obtained from wetland grading may be stockpiled utilizing designated haul roads and staging/stockpile areas, thoroughly dried, then used as fill throughout the entire site . 16.Offline sections shall be tied online sequentially from downstream to upstream. When directed, the contractor shall pump or divert water into the new online channel before constructing tie-in in order to wash riffles free of excess sediment and remove sediment prior to tying into live downstream channel. 17.When grading access road to electric utility corridor adjacent to UT2 Reach 2, install sediment barrier to protect downgradient areas, properly compact all placed material in accordance with grading specification, apply matting to side slopes steeper than 3:1. 18.Close out any access, haul or staging areas that are no longer necessary. Permanent close out of such areas shall include soil ripping to address compaction. 19.Proceed to the middle portion of the site that has multiple offline channel reaches to be constructed (East Buffalo Creek Reach 2, UT2 Reach 2 offline portion, UT3 Reach 2). Construct the proposed stream channels in the dry to the grade and dimensions specified in the cross-sections and profile. Same day stabilization may not be required when constructing offline channel segments (when these areas are depressional with no inflow or outflow). 20.The first offline channel will use harvested onsite stone material from a non-channel source, supplemented with offsite material as necessary. There-after, transfer biota from existing streams to be abandoned to existing or new online channels, then transfer coarse material for use in new channel structures (riffles, rock sills, rock vanes, etc.). See Biota Harvesting Sequence for additional details. Construction Sequence (continued): SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION005-45020HBERJM1.1August 4, 2020X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Typicals.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaEast Buffalo Creek Reach 2Typical SectionsEast Buffalo Creek Reach 2 - Riffle STA 1005+50 - 1013+92 East Buffalo Creek Reach 2 - Pool STA 1005+50 - 1013+92 2.5: 1 ( V A R I E S ) 2.5:1 ( V A RI E S) 9.75' 20' 0.5' 9.75' 3.5' (VARIES 2.5-4.5') VARIES4.5'VARIES 4.5' 6:1 3:1 6:1 3:1 PROPOSED STREAM CENTERLINE PROPOSED BANKFULL TIE TO EXISTING GROUND 3.5:1 3.5:1 4.5' 15' 6'4.5'VARIES6'VARIES 6' 6:1 3:1 6:1 3:1 1.3'1.6' PROPOSED STREAM CENTERLINE PROPOSED BANKFULL TIE TO EXISTING GROUND SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION005-45020HBERJM1.2August 4, 2020X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Typicals.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaEast Buffalo Creek Reach 3Typical SectionsEast Buffalo Creek Reach 3 - Riffle Areas designated in plan view only from STA 1013+92 - 1017+16 East Buffalo Creek Reach 3 - Pool. POOL TYPICAL NOTE: MINIMAL PROFILE WORK IS PROPOSED. AT INSTALLED CHANNEL NARROWING STRUCTURES, CONTRACTOR SHALL ADAPT REACH 2 POOL TYPICAL AS DIRECTED BY ENGINEER. 4.5' 15' 6'4.5' VARIESVARIES 6' 3:1 1.3'1.6'3.5:1 PROPOSED STREAM CENTERLINE PROPOSED BANKFULL REMOVE LEVY AND/OR REMOVE INVASIVES AND RESLOPE BANK WHERE NECESSARY TO PHYSICALLY REMOVE PRIVET FROM BANKS OR GRADE BANKS FOR STABILITY, USE TYPICAL DIMENSIONS AND BENCHING SLOPES AND APPLY MATTING. ADAPT AS NECESSARY TO SAVE DESIRABLE VEGETATION. IN OVERWIDE CHANNEL SEGMENTS THAT ARE IMPACTING HABITAT OR STABILITY, APPLY STREAM STRUCTURES AND NARROW CHANNEL BY BACKFILLING VANE ARM WITH COBBLE NOTE: TYPICAL SECTION DOES NOT APPLY THROUGHOUT. THE INTENT IS FOR CONTRACTOR TO APPLY SLOPES AND WIDTHS FROM TYPICAL SECTION PROVIDED IN APPROXIMATE TERMS WHEN REMOVING PRIVET, GRADING OUT EXISTING LEVY ON CREEK, OR INSTALLING STRUCTURES TO NARROW BASE FLOW CHANNEL. 4 TO 6:1 (A L L B E N C H I N G ) 6' REFER TO GRADING PLAN - SHAPE VALLEY PER PROPOSED CONTOURS SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION005-45020HBERJM1.3August 4, 2020X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Typicals.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaUT2 Reach 2Typical SectionsUT 2 Reach 2 - Riffle STA 3003+95 - 3007+33 UT2 Reach 2 - Pool STA 3003+80 - 3007+42 2.2 5 : 1 ( V A R I E S ) 2.25:1 ( V A RI E S) 2.0' (VARIES 1.0'-2.0') 9' 4.5' 3' 6:1 6:1 3' PROPOSED STREAM CENTERLINE PROPOSED BANKFULL 3:1 3:1 VARIESMIN 2' (OR 0.66' VERT.) TIE TO EXISTING GROUND 3:1±3:1± 2.25' 7' 2.5'2.25' 0.7'0.8' 4' 6:1 3:1 4' 6:1 3:1 PROPOSED STREAM CENTERLINE PROPOSED BANKFULL VARIESMIN 2' (OR 0.66' VERT.) TIE TO EXISTING GROUND SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION005-45020HBERJM1.4August 4, 2020X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Typicals.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaUT3 Reach 2ATypical SectionsUT 3 Reach 2A - Riffle STA: 4000+52 - 4004+53 UT 3 Reach 2A - Pool STA: 4000+52 - 4004+53 2.2 5 : 1 2.25:1 10' 5' 2.0' (VARIES 1.1'-2.3') 6:1 3:1 VARIES 3:1 6:1 3'VARIES PROPOSED STREAM CENTERLINE EXISTING GROUND PROPOSED BANKFULL 3' 3:1 3:1 0.7' 6:1 3:13:1 6:1 2.1' 8' 1.9'1.9'2.1' 0.9' 4'VARIES4'VARIES PROPOSED STREAM CENTERLINE EXISTING GROUND PROPOSED BANKFULL VARIES 3:1 REFER TO GRADING PLAN - SHAPE VALLEY PER PROPOSED CONTOURS SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION005-45020HBERJM1.5August 4, 2020X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Typicals.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaUT3 Reach 2BTypical SectionsUT 3 Reach 2B - Riffle STA: 4004+53 - 4010+46 UT 3 Reach 2B - Pool STA: 4004+53 - 4010+46 2.5: 1 10' 5' 2.0' (VARIES 1.0' - 2.0') 1.2'VARIES1.2'VARIES 0.3' PROPOSED STREAM CENTERLINE EXISTING GROUND PROPOSED BANKFULL 2:1 2:1 2.5:1 3:13:1 2.5: 1 2.5:10.5' 2:1 2:1 1.5' 10' 3.5'3.5'1.5' 0.7' 1.2'VARIES1.2'VARIES 0.9' PROPOSED STREAM CENTERLINE PROPOSED BANKFULL EXISTING GROUND REFER TO GRADING PLAN - SHAPE VALLEY PER PROPOSED CONTOURS SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION005-45020HBERJM1.6August 4, 2020X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Typicals.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaUT3 Reach 3Typical SectionsUT 3 Reach 3 - Riffle STA: 4010+46 - 4014+26 UT 3 Reach 3 - Pool STA: 4010+46 - 4014+26 2.5: 1 2.5:1 6.25' 13' 0.5'6.25' 2.5' VARIES 2' - 4' 3'VARIES3'VARIES 6:1 3:1 PROPOSED STREAM CENTERLINE EXISTING GROUND PROPOSED BANKFULL 3:1 6:1 1.26' REFER TO GRADING PLAN - SHAPE 3' WIDE BERM PER PROPOSED CONTOURS 2:1 3:1 + / - 3:1 +/- 2.3' 11' 3.2'3.2'2.3' 1'0.8' 6:1 3:1 3:1 6:1 4'VARIES4'VARIES PROPOSED STREAM CENTERLINE EXISTING GROUND PROPOSED BANKFULL SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION005-45020HBERJM1.7August 4, 2020X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Typicals.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaUT4 Reach 2Typical SectionsUT 4 Reach 2 - Riffle STA: 5000+52 - 5002+29 UT 4 Reach 2 - Pool STA: 5000+52 - 5002+29 2.5:1 4.6' 12' 4.6'2.8' PROPOSED STREAM CENTERLINE PROPOSED BANKFULL 2.2' VARIES 2.0' - 4.0' 2.25'MIN 1.5' (OR 0.5' VERT.) 6:1 3:1 (VARIE S ) 3:1 6:1 2.25'VARIES TIE TO EXISTING GROUND FILL EXISTING CHANNEL 3:1 + / -3:1 +/- 2.5' 8.5' 2.5' 0.8' 3.5' PROPOSED STREAM CENTERLINE PROPOSED BANKFULL 1' 4' 6:1 3:1 6:1 4'VARIES MIN 1.5' (OR 0.5' VERT.) 3:1 (VARIE S ) FILL EXISTING CHANNEL TIE TO EXISTING GROUND SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION005-45020HBERJM1.8August 4, 2020X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Typicals.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaUT5 Reach 2Typical SectionsUT 5 Reach 2 - Riffle STA: 6000+67 - 6002+48 UT 5 Reach 2 - Pool STA: 6000+65 - 6002+48 3.5' 8' 1'3.5' 1.16' REMOVE PRIVET AND GRADE SLOPEAPPLY MATTING OR SOD MAT WHEN AVAILABLE PLACE STONY MATERIAL HARVESTED FROM EXISTING BED REMOVE INVASIVES AS DIRECTED APPLY SAME NOTE AS ABOVE WITH REFERENCE TO TYPICAL AND EXISTING BED GRADING APPLY MATTING OR OVEREXCAVATE AND PLACE SOD MAT 4 TO 6:1 (A L L B E N C H I N G ) EXISTING GROUND TRENCH IN MATTING WHERE USED 3:1 3:1 3:1 3:1 2.4' 5.8' 1'2.4' 0.8' REMOVE PRIVET AND OTHER INVASIVES AND RESLOPE APPLY SOD MAT, OR APPLY SOIL IN LIGHTLY COMPACTED 12" LIFTS AND WRAP OVER ONE ROLL OF COIR MATTING TRENCH IN MATTING WHERE USED PLACE STONY MATERIAL HARVESTED FROM EXISTING BED (TYP) TREAT OR PHYSICALLY REMOVE INVASIVES AS DIRECTED TYPICAL SECTION, DO NOT BUILD TO EXACT DIMENSIONS BUT INSTEAD ACHIEVE APPROXIMATE DIMENSIONS BY FITTING STONE AND MATTED SOIL LIFTS TO EXISTING CHANNEL SHAPE AND MAINTAINING BED STRUCTURE (PROFILE) MINIMIZE DISTURBANCE TO EXISTING STREAM BED BUT MOVE AROUND MATERIAL AS NECESSARY TO CREATE DESIRED LOW FLOW CHANNEL ~1' IN WIDTH APPLY SOD MAT TO APPROXIMATE TYPICAL 4 TO 6:14 TO 6:1 (A L L B E N C H I N G ) EXISTING GROUND PROPOSED BANKFULL 208020852090209521002105211020802085209020952100210521101000+001000+501001+001001+501002+001002+501003+001003+501004+001004+20EXISTING GROUNDCECECECECECECECECECECECECECECE CE CECE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECE 209521002 0 9 0 2 0 9 5 2100 2105 2110 2115 2120 2085209020952100210521102115 STA. 1003+66EAST BUFFALO CREEK REACH 1 - ENHANCEMENT IISTA. 3+96END UT1 - ENHANCEMENT IISTA 1000+00BEGIN EAST BUFFALO CREEK REACH 1 - ENHANCEMENT IISTA 1000+00 TO 1001+50CUT-STUMP TREATMENT OF INTERMITTENTINVASIVES ALONG BANKSUPPLEMENTAL LIVESTAKING AS NEEDEDREMOVE UPSTREAM TREE IN ROW OF 3REMOVE/RELOCATE 2" ALDER AS NECESSARYREMOVE TREES AND LEVYPHYSICAL REMOVAL OF MULTIFLORAROSE AND HONEYSUCKLE -RESEED AND MAT BANKSTA 1003+66 TO 1005+50 LEFT BANKREMOVE LARGE PRIVET ANDLAY BACK TERRACE SLOPE AT 3:1HARVEST PLACED BOULDERS FOR REUSESTA 1004+80 TO 1005+00RESTORE USING EAST BUFFALO R2 TYPSHIFT ALIGNMENT TO RIGHT1000+001001+001002+001003+001004+0020802085 STABILIZE WITH MATTINGEAST BUFFALO CREEKUT1MATCH LINE - STA 1 0 0 4 + 2 0 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.1.1 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina East Buffalo Creek Stream Plan and Profile 0'4'8'12'(VERTICAL)ENHANCEMENT II1. TREAT PRIVET AND INVASIVE SPECIES2. RIPARIAN BUFFER RESTORATION ON RIGHTBANK PER PLANTING PLAN3. SUPPLEMENTAL PLANTING ON LEFT BANK4. SAVE ALL TREES NOT SPECIFICALLYIDENTIFIED FOR REMOVAL- EAST BUFFALO REACH 1: 20502055206020652070207520802085205020552060206520702075208020851004+201004+501005+001005+501006+001006+501007+001007+501008+001008+50-8.9%-6.7%-0.0%STA = 1005+50ELEV = 2074.28STA = 1005+70ELEV = 2072.31STA = 1005+76ELEV = 2070.20STA = 1005+95 ELEV = 2070.51STA = 1006+00ELEV = 2068.51STA = 1006+17 ELEV = 2069.09STA = 1006+21ELEV = 2067.59STA = 1006+45ELEV = 2065.43STA = 1006+76ELEV = 2063.45STA = 1006+81 ELEV = 2065.26 STA = 1006+99 ELEV = 2063.51STA = 1007+07ELEV = 2060.61STA = 1007+13 ELEV = 2062.91 STA = 1007+32 ELEV = 2061.34STA = 1007+41ELEV = 2059.14STA = 1007+46 ELEV = 2060.64 STA = 1007+64 ELEV = 2058.89STA = 1007+68ELEV = 2057.25STA = 1007+72ELEV = 2058.69STA = 1007+73ELEV = 2058.69STA = 1007+79ELEV = 2056.78STA = 1007+81 ELEV = 2058.49 STA = 1007+92 ELEV = 2057.33 STA = 1008+07 ELEV = 2056.83 STA = 1008+22 ELEV = 2055.46STA = 1008+28ELEV = 2053.46STA = 1008+32ELEV = 2055.36STA = 1008+00ELEV = 2055.13STA = 1008+42 ELEV = 2054.69 STA = 1005+81ELEV = 2071.91 STA = 1006+04 ELEV = 2070.11 STA = 1006+25ELEV = 2068.69STA = 1006+50 ELEV = 2067.23 STA = 1006+25ELEV = 2068.69STA = 1006+28ELEV = 2067.79STA = 1006+30ELEV = 2068.37STA = 1006+39 ELEV = 2067.63 STA = 1006+52ELEV = 2067.23STA = 1006+57ELEV = 2064.84STA = 1006+60 ELEV = 2066.39STA = 1006+67ELEV = 2065.86EXISTING GROUNDPROPOSED GRADEPROPOSED BANKFULLXXXXXXXXXXX20 7 0 2075 20802085 2060 2065 2070 20 7 5 2080 STA 1008+37EAST BUFFALO CREEK - RESTORATIONSTA 3025+33UT2 REACH 2 - END ENHANCEMENT ISTA 1005+50END EAST BUFFALO CREEK REACH 1 - ENHANCMENT IIBEGIN EAST BUFFALO CREEK REACH 2 - RESTORATIONREMOVE EXISTING FENCEWITHIN EASEMENT (TYP)HARVEST EXISTING MATERIAL FOR REUSE INEAST BUFFALO CREEK, REACH 2 RESTORATION,THEN FILL EXISTING CHANNELROUGHEN FLOOD FLOW PATHUSING ONSITE WOOD ANDDENSE LIVESTAKINGPHYSICAL REMOVAL OF MULTIFLORAROSE AND HONEYSUCKLE -RESEED AND MAT BANKFILL EXISTING CHANNELSTA 1004+80 TO 1005+00OVERWIDE STREAMRESTORE USING EAST BUFFALO R2 TYP3007+333005+003006+003007+001004+001005+001006+001007+001008+002075 2 0 7 0 2075208020852 0 6 020652070 205520602065EAST BUFFALO CREEKUT2MATCH LINE - STA 1004+20 MATCH L I N E - S T A 1 0 0 8 + 5 0 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.1.2 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina East Buffalo Creek Stream Plan and Profile 0'4'8'12'(VERTICAL)ENHANCEMENT II1. TREAT PRIVET AND INVASIVE SPECIES2. RIPARIAN BUFFER RESTORATION ON RIGHTBANK PER PLANTING PLAN3. SUPPLEMENTAL PLANTING ON LEFT BANK4. SAVE ALL TREES NOT SPECIFICALLYIDENTIFIED FOR REMOVAL- EAST BUFFALO REACH 1: 20302035204020452050205520602065203020352040204520502055206020651008+501009+001009+501010+001010+501011+001011+501012+001012+501013+00-3.7%-5.8%-4.8%-4.2%-4.5%-3.7%-4.3%-3.2%-4.1%STA = 1008+52ELEV = 2051.22STA = 1008+77ELEV = 2052.51STA = 1008+82ELEV = 2049.61STA = 1009+04ELEV = 2050.86STA = 1009+11ELEV = 2048.59STA = 1009+29ELEV = 2049.36STA = 1009+33ELEV = 2047.36STA = 1009+37ELEV = 2049.36STA = 1009+46ELEV = 2048.55STA = 1009+53ELEV = 2046.39STA = 1009+58ELEV = 2048.05STA = 1009+69ELEV = 2047.08STA = 1009+73ELEV = 2045.08STA = 1009+77ELEV = 2046.98STA = 1009+90ELEV = 2046.00STA = 1009+95ELEV = 2043.30STA = 1010+16ELEV = 2044.47STA = 1010+20ELEV = 2042.97STA = 1010+37ELEV = 2043.14STA = 1010+45ELEV = 2041.04STA = 1010+51 ELEV = 2042.54 STA = 1010+67 ELEV = 2041.37 STA = 1010+83 ELEV = 2039.45 STA = 1010+99 ELEV = 2040.32STA = 1011+04ELEV = 2038.18STA = 1011+09 ELEV = 2040.02 STA = 1011+25 ELEV = 2039.27STA = 1011+30ELEV = 2037.47STA = 1011+34 ELEV = 2039.27 STA = 1011+46 ELEV = 2038.79STA = 1011+51ELEV = 2036.68STA = 1011+56 ELEV = 2038.38 STA = 1011+75 ELEV = 2037.52STA = 1011+80ELEV = 2035.62STA = 1011+84 ELEV = 2037.52STA = 1012+08ELEV = 2034.63STA = 1012+13 ELEV = 2036.33 STA = 1012+32 ELEV = 2035.61STA = 1012+37ELEV = 2033.71STA = 1012+42 ELEV = 2035.51 STA = 1012+61 ELEV = 2034.69STA = 1012+66ELEV = 2032.79STA = 1012+70 ELEV = 2034.59 STA = 1012+89 ELEV = 2033.98STA = 1012+97ELEV = 2031.88STA = 1010+26ELEV = 2043.97 STA = 1009+17ELEV = 2050.36 STA = 1012+03 ELEV = 2036.73 STA = 1008+60ELEV = 2053.72STA = 1008+88ELEV = 2052.11STA = 1010+01ELEV = 2045.40 STA = 1010+90 ELEV = 2040.82 EXISTING GROUNDPROPOSEDGRADEPROPOSED BANKFULLOUEOUEOUEOUEXXXX XXX2040204520502055 20352040 2045 20502055ROUGHEN FLOOD FLOW PATHUSING ONSITE WOOD ANDDENSE LIVESTAKINGCONSTRUCT FLOOD FLOWREENTRY POINT USING NATIVESTONE AND SOIL MIXSCARIFY AND RESEEDEXISTING FARM ROADEXISTING FA R M R O A D EAST BUFFALO CREEKEA S T B U F F A L O C R E E K - R E S T O R A T I O N REMOVE EXISTING FENCE(LIVESTOCK TO BE REMOVEDFROM SITE)SEE UT5 ENHANCEMENT IIPLAN SHEET 2.6.13007+331009+001010+001011+001012+001013+006002+0020502055204020452035204 0 ROUGHEN FLOOD FLOW PATHUSING ONSITE WOOD ANDDENSE LIVESTAKINGUT5EAST BUFFALO CREEK MATCH LINE - STA 1008+50 MATCH LINE - STA 1013+00 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.1.3 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina East Buffalo Creek Stream Plan and Profile 0'4'8'12'(VERTICAL) 201520202025203020352040204520152020202520302035204020451013+001013+501014+001014+501015+001015+501016+001016+501017+001017+50-3.7%-3.2%-4.1%-4.3%-3.3%STA = 1017+15 ELEV = 2019.15EXISTING GROUNDPROPOSEDGRADEPROPOSED BANKFULLSTA = 1013+02ELEV = 2033.58STA = 1013+26ELEV = 2032.59STA = 1013+35ELEV = 2030.59STA = 1013+39ELEV = 2032.39STA = 1013+86ELEV = 2029.03STA = 1013+94ELEV = 2030.63STA = 1013+56ELEV = 2029.86STA = 1013+63ELEV = 2031.71STA = 1013+77ELEV = 2031.09 STA = 1014+98 ELEV = 2027.20 SAFSAFSAFCECECECECECECECECECECECECECECECESAFSAFSAFCECECECECECECECECECECECECECECECEXXXXXXXXXXXXXXXX X X XX2020 20 2 5 2030 2030203520402045202520252030 STA. 1013+57EAST BUFFALO CREEK R2 - RESTORATIONSTA 6002+48END UT5 - ENHANCEMENT IISTA 1013+92END EAST BUFFALO CREEK REACH 2- RESTORATIONBEGIN EAST BUFFALO REEK REACH 3 - ENHANCEMENT IISTA 1017+16END EAST BUFFALO CREEK REACH 3 - ENHANCEMENT IIREMOVE EXISTING FENCEWITHIN EASEMENT (TYP)PROPOSED SINGLE LOG VANE1013+001014+001015+001016+001 0 1 7 +00 10 1 8 + 0 06002+00203520352035AS DIRECTED, REMOVE LARGEPRIVET CLUMPS FROM RIGHTBANK AND REBUILD TOTYPICAL DIMENSIONPROPOSED BANK GRADINGSHALL REMOVE LEVY ANDAPPLY LEFT BANK BENCHINGFROM TYPICAL SECTIONSEE SHEET 1.2EAST BUFFALO CREEKEXISTING R E S I D E N T I A L R O A D MATCH LINE - STA 1013+00 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.1.4 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina East Buffalo Creek Stream Plan and ProfileENHANCEMENT II:1. REMOVE PRIVET AND INVASIVE SPECIES2. RIPARIAN BUFFER RESTORATION ON LEFT BANK PER PLANTING PLAN3. SUPPLEMENTAL PLANTING ON RIGHT BANK4. REMOVE LIVESTOCK5. APPLY STEP PROFILE AT TOP OF REACH. MAKEMINOR ADJUSTMENTS TO CHANNEL BOTTOMWIDTH USING STRUCTURES. CONDUCT LEVYREMOVAL AND BENCHING ON LEFT BANKWHERE SHOWN.0'4'8'12'(VERTICAL) 20802085209020952100210521102115208020852090209521002105211021150+000+501+001+502+002+503+003+504+00EXISTING GROUNDCE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECE 20952 1 0 0 21052110 211521202125 2090 209521002105211021152120 208520902095 0+001+002+003+00UT1E A S T BU F F A LO C R E E KUT1 STA: 0+00BEGIN UT1 ENHANCEMENT IISTA. 1003+66EAST BUFFALO CREEK REACH 1 - ENHANCEMENT IISTA. 3+96END UT1 - ENHANCEMENT II1002+0010 0 3 + 0 0 1 0 0 4 + 0 0HARVEST PLACED BOULDERS FOR REUSE2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.2.1 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina UT1 Stream Plan and Profile 0'4'8'12'(VERTICAL)ENHANCEMENT II - UT1:1. TREAT PRIVET AND INVASIVE SPECIES2. SUPPLEMENTAL PLANTING ON BOTH BANKS PER PLANTING PLAN 2095210021052110211521202125213021352095210021052110211521202125213021352999+503000+003000+503001+003001+503002+003002+503003+003003+50STA = 3001+01 ELEV = 2128.16 STA = 3001+56 ELEV = 2117.39 STA = 3001+89 ELEV = 2110.23 STA = 3002+22 ELEV = 2107.07 STA = 3002+35 ELEV = 2104.05 STA = 3002+48 ELEV = 2102.53STA = 3002+29ELEV = 2104.33STA = 3001+43 ELEV = 2118.98 STA = 3001+03ELEV = 2127.75STA = 3001+31 ELEV = 2120.62 -9.6%-21.4%-12.8%-4.4%-11.8%-38.5%-13.1%-19.2%-26.3%EXISTING 36" CMPINV.IN 2035.69'INV.OUT 2028.01'EXISTING GROUNDPROPOSED GRADEPROPOSED BANKFULLOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECE CE CE CECE CE CE CE CE CE CECECE CECE CE CE C E C E CE CE CE CE CE CE CE CECECECECECE C E C E C E C E C E CE CE CE CE CE OUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECE CE CE CECE CE CE CE CE CE CECECE CECE CE CE C E C E CE CE CE CE CE CE CE CECECECECECE C E C E C E C E C E CE CE CE CE CE XXXX2100 2105 2 1 1 0 212021252090 2095 2100 2105 21 1 0 2 1 1 521202125213021352140 2090 2095 2 1 0 0 2135214021452150215521602165217021752180218521502155 2105 21 1 0 2 1 1 52120STATION 3000+95BEGIN UT2 REACH 2 - ENHANCEMENT INO CREDITPROPOSED START OF UTILITYRELOCATION BY DUKE POWERFILL AND ABANDONEXISTING DITCHCONSTRUCT ACCESS ROADTO PROPOSED OVERHEADUTILITY EASEMENTSTATION 3001+46END UTILITY EASEMENTENHANCEMENT ICREDIT BEGINSREMOVE OR CUT-STUMPTREAT PRIVET, SLOPE AND MATBANKS WHERE DISTURBEDSTA 3002+48 TO 3003+953001+003002+003003+0021 1 0 21 1 5 21 2 02125 RETAIN EXISTING 36" CMPINV. IN 2035.69'INV. OUT 2028.01'STA. 3002+48BEGIN BANK GRADING INERODED SEGMENTS ANDWHERE NECESSARY FORINVASIVE REMOVALREMOVE OR CUT-STUMPCONDUCT MECHANICAL REMOVAL OFINVASIVES PRIOR TO STREAMWORKMAKE FIELD MODIFICATIONS TO LEFTBANK GRADING AS DIRECTED TO SAVELARGE TREESREMOVE LOCUST TREESREMOVE FENCE,CONDUCT PHYSICALINVASIVES REMOVALFROM FENCE TO UT2MATCHLIN E - S T A 3 0 0 3 + 4 5UT2UT2 EA S T B U F F A L O R O A D 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.3.1 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina UT2 Stream Plan and Profile 0'4'8'12'(VERTICAL)NOTE:APPLY CASCADING RIFFLE-POOLSEQUENCE WHERE INDICATED IN PLANVIEW, USE WITH DETAIL 3, SHEET 6.1 2050205520602065207020752080208520902050205520602065207020752080208520903003+503004+003004+503005+003005+503006+003006+503007+003007+50STA = 3003+99ELEV = 2080.86 STA = 3007+33 ELEV = 2055.40 STA = 3006+55 ELEV = 2059.66 STA = 3004+35ELEV = 2077.50STA = 3004+69ELEV = 2074.62 STA = 3006+24 ELEV = 2062.11 -8.0%-9.3%-8.0%-8.1%-5.5%EXISTING GROUNDPROPOSED GRADEPROPOSED BANKFULLOUEOUEXXXXXXXXXXXXXXXX2060206520702065207020 7 5 2075 2080 2085 2090 2095 20802085209020952100 UT2EA S T BU F FA LO CR E EK STA. 3003+95RESUME FULL APPLICATIONOF TYPICAL SECTIONSREMOVE EXISTING FENCEWITHIN CONSERVATIONEASEMENTFILL EXISTING CHANNELSTA 1008+41EAST BUFFALO CREEK - RESTORATIONSTA 3007+33END UT2 REACH 2 - ENHANCEMENT IROUGHEN FLOOD FLOW PATHUSING ONSITE WOOD ANDDENSE LIVESTAKING3007+333003+003004+003005+003006+003007+001007+001 0 0 8 + 0 020752060 2 0 6 5 2 0 7 0 205520602065REMOVE FENCE,CONDUCT PHYSICALINVASIVES REMOVAL FROMFENCE TO UT2MATCHLINE - STA 3003+45 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.3.2 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina UT2 Stream Plan and Profile 0'4'8'12'(VERTICAL)NOTE:APPLY CASCADING RIFFLE-POOLSEQUENCE WHERE INDICATED INPLAN VIEW, USE DETAIL 3, SHEET 6.1 2060206520702075208020852090209521002105211021152060206520702075208020852090209521002105211021154000+004000+504001+004001+504002+004002+504003+004003+504003+80STA = 4000+49ELEV = 2104.10STA = 4003+71ELEV = 2062.37STA = 4003+75 ELEV = 2063.95 STA = 4000+55ELEV = 2103.12STA = 4000+56ELEV = 2100.14STA = 4000+62ELEV = 2102.44STA = 4000+70ELEV = 2101.30STA = 4000+71ELEV = 2098.97STA = 4000+77ELEV = 2100.68STA = 4000+79ELEV = 2100.22STA = 4000+80ELEV = 2097.36STA = 4000+88ELEV = 2099.24 STA = 4000+94ELEV = 2098.33STA = 4000+94ELEV = 2096.45STA = 4001+48ELEV = 2091.50STA = 4001+68ELEV = 2088.90 STA = 4001+85 ELEV = 2086.80 STA = 4002+02 ELEV = 2084.60 STA = 4002+20 ELEV = 2082.38 STA = 4002+38 ELEV = 2080.08 STA = 4002+61 ELEV = 2077.21 STA = 4002+77 ELEV = 2075.11 STA = 4002+94 ELEV = 2073.02 STA = 4003+08 ELEV = 2071.17 STA = 4003+25 ELEV = 2068.96STA = 4003+27ELEV = 2066.54STA = 4003+30ELEV = 2068.51STA = 4003+33ELEV = 2068.22STA = 4003+33ELEV = 2065.99STA = 4003+38 ELEV = 2067.72 STA = 4003+47 ELEV = 2066.75STA = 4003+48ELEV = 2064.48STA = 4003+53 ELEV = 2066.29 STA = 4003+56ELEV = 2065.81STA = 4003+57ELEV = 2063.35STA = 4003+63 ELEV = 2065.25STA = 4003+69 ELEV = 2064.43 STA = 4001+22ELEV = 2094.76STA = 4001+00ELEV = 2097.57 -12.7%-16.6%-13.7%-19.1%-15.7%-12.7%-12.8%-12.6%-12.7%-12.7%-12.7%-12.7%-12.7%-12.7%-12.7%-12.7%-11.4%-11.2%-14.7%-12.3%-12.8%EXISTING 36" CMPINV.IN 2108.24'INV.OUT 2104.07'EXISTING GROUNDPROPOSED GRADEPROPOSED BANKFULLSTATION 4001+00REPEAT CASCADINGRIFFLE-POOL SEQUENCEOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECE CE CE CE CE CE CE CE CE CECECECECECE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECE CE CE CE CE CE CE CE CE CECECECECECE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECEX2 0 6 5 2070 2075 2080 2085 2090 2095 2090 2095 210021052110211521202125STA. 4000+52BEGIN UT3 REACH 2A - RESTORATIONHARVEST BOULDERS AND STONEAND FILL EXISTING CHANNELEXISTING POWER LINETHROUGH FIELD TOBE ABANDONEDSTABILIZE ROAD PIPEOUTLET AND SPREAD FLOWINTO PROPOSED BUFFERROUGHEN FLOOD FLOW PATHUSING ONS ITE WOOD ANDDENSE L IVESTAK INGCONSTRUCT ACCESS ROADSTA. 4000+70END ROWBEGIN UT3 REACH 2ARESTORATION CREDIT4000+004001+004002+004003+004004+0020 7 5 20 8 0 2 0 8 5 2 0 9 0 20 9 5 2100 20652070207520802085209020952100RETAIN EXISTING 36" CMPINV. IN 2108.24'INV. OUT 2104.07'RETAIN EXISTING 24" CMPINV. IN 2093.58'INV. OUT 2089.30'MAKE FIELD MODIFICATIONS TO LEFTBANK GRADING AS DIRECTED TO SAVELARGE TREESUT3EAST BUFFALO ROAD MATCH L I N E - S T A 4 0 0 3 + 8 0 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 ABCD20652070DEPTH VARIES1.1' TO 2.3'SEE TYP SECTIONSHEET 1.4Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.4.1 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina UT3 Stream Plan and Profile 0'4'8'12'(VERTICAL)NOTE:APPLY CASCADING RIFFLE-POOLSEQUENCE WHERE INDICATED INPLAN VIEW, USE INSET PROFILEWITH DETAIL 3, SHEET 6.1INSET 1INSET 1 2030203520402045205020552060206520702030203520402045205020552060206520704003+804004+004004+504005+004005+504006+004006+504007+004007+504008+004008+30-4.8%-4.8%STA = 4006+10ELEV = 2046.13STA = 4006+12ELEV = 2045.63STA = 4006+20 ELEV = 2045.75STA = 4006+25ELEV = 2044.15STA = 4006+45 ELEV = 2044.62STA = 4006+50ELEV = 2043.02STA = 4006+61 ELEV = 2043.91STA = 4006+66ELEV = 2042.31STA = 4006+80 ELEV = 2043.05STA = 4006+85ELEV = 2041.45STA = 4007+02 ELEV = 2042.04STA = 4007+07ELEV = 2040.44STA = 4007+22 ELEV = 2041.15STA = 4007+27ELEV = 2039.55STA = 4007+45 ELEV = 2040.07STA = 4007+50ELEV = 2038.47STA = 4007+69 ELEV = 2038.99STA = 4007+74ELEV = 2037.39STA = 4007+83 ELEV = 2038.36STA = 4007+88ELEV = 2036.76STA = 4008+03 ELEV = 2037.45STA = 4008+08ELEV = 2035.85STA = 4008+19 ELEV = 2036.79 STA = 4008+25ELEV = 2035.09STA = 4004+76ELEV = 2053.98STA = 4004+81ELEV = 2052.38STA = 4004+95ELEV = 2052.78STA = 4005+00ELEV = 2051.18STA = 4005+22ELEV = 2051.18STA = 4005+27ELEV = 2049.58STA = 4005+38ELEV = 2050.17STA = 4005+43ELEV = 2048.57STA = 4005+57ELEV = 2049.02STA = 4005+62ELEV = 2047.42STA = 4005+83 ELEV = 2047.21STA = 4005+86ELEV = 2046.21STA = 4008+29ELEV = 2036.39STA = 4004+85ELEV = 2053.68STA = 4005+04ELEV = 2052.48STA = 4005+31ELEV = 2050.88 STA = 4005+47ELEV = 2049.87STA = 4005+66ELEV = 2048.72 STA = 4005+91 ELEV = 2047.20 STA = 4006+14 ELEV = 2046.13 STA = 4006+29 ELEV = 2045.45 STA = 4006+54 ELEV = 2044.32 STA = 4006+70ELEV = 2043.61STA = 4006+89 ELEV = 2042.75 STA = 4007+11 ELEV = 2041.74 STA = 4007+31ELEV = 2040.85STA = 4007+78 ELEV = 2038.69 STA = 4007+92ELEV = 2038.06STA = 4008+12 ELEV = 2037.15 STA = 4007+54 ELEV = 2039.77 STA = 4003+92ELEV = 2062.23STA = 4004+07ELEV = 2060.62STA = 4004+21ELEV = 2059.26STA = 4004+40ELEV = 2057.26STA = 4004+66ELEV = 2054.60 -4.5%-6.1%-10.2%-5.5%-6.3%-5.2%-5.9%-5.7%-5.3%-5.5%-5.3%-5.3%-6.7%-5.5%-4.8%-6.6%-8.4%-7.5%-9.3%-8.6%-9.1%-10.6%-10.2%-10.2%-10.2%-10.2%EXISTING GROUNDPROPOSEDGRADEPROPOSEDBANKFULLSTATION 4004+66END CASCADINGRIFFLE-POOL SEQUENCEOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECEOUEOUECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECE20402045 20502055 2060 20652070 2040 2 0 4 5 2050 20552060206520702075 HARVEST EXISTING STREAM BEDMATERIAL AND FILL EXISTINGCHANNELEXISTING POWER LINETHROUGH FIELD TOBE RELOCATEDOUTSIDE OF BUFFERSTA 4004+53END UT3 R2ABEGIN UT3 R2BROUGHEN FLOOD FLOW PATHUSING ONSITE WOOD ANDDENSE LIVESTAKINGROUGHEN FLOOD FLOW PATHUSING ONSITE WOOD ANDDENSE LIVESTAKINGSTABILIZE ROAD PIPEOUTLET AND SPREAD FLOWINTO PROPOSED BUFFERROUGHEN FLOOD FLOW PATHUSING ONSITE WOOD ANDDENSE LIVESTAKING4004+004005+004006+004007+004008+0020 4 0 2 0 4 52050205520602065207020602065 RETAIN EXISTING 18" CMPINV. IN 2052.31'INV. OUT 2048.23'UT3EAST BUFFALO ROADMATCH LINE - STA 4003+80 MATCH LINE - STA 4008+30 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.4.2 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina UT3 Stream Plan and Profile 0'4'8'12'(VERTICAL)NOTE:APPLY CASCADING RIFFLE-POOLSEQUENCE WHERE INDICATED IN PLANVIEW, USE INSET 1 PROFILE (PREVIOUSPAGE) WITH DETAIL 3, SHEET 6.1APPLY CASCADERIFFLE-POOL SEQUENCEFROM INSET 1, PAGE 2.4.1 201020152020202520302035204020102015202020252030203520404008+304008+504009+004009+504010+004010+504011+004011+504012+004012+50STA = 4008+48ELEV = 2034.08STA = 4008+73ELEV = 2033.09STA = 4008+88ELEV = 2033.93STA = 4008+93ELEV = 2032.33STA = 4009+07ELEV = 2033.19STA = 4009+15ELEV = 2032.89 STA = 4008+68ELEV = 2034.69STA = 4009+35ELEV = 2032.05STA = 4009+39ELEV = 2030.49STA = 4009+51ELEV = 2030.93 STA = 4009+57ELEV = 2030.43STA = 4009+79ELEV = 2028.90STA = 4010+01ELEV = 2026.42STA = 4010+04ELEV = 2026.42STA = 4010+06 ELEV = 2027.17 STA = 4010+25 ELEV = 2026.18STA = 4010+27ELEV = 2025.43STA = 4010+30ELEV = 2025.43STA = 4010+32ELEV = 2026.18STA = 4010+33ELEV = 2026.14STA = 4010+36ELEV = 2025.17STA = 4009+55ELEV = 2029.33STA = 4009+85ELEV = 2028.39STA = 4009+99 ELEV = 2027.17 STA = 4008+43ELEV = 2035.68STA = 4010+60 ELEV = 2024.99STA = 4010+65ELEV = 2023.19STA = 4010+70ELEV = 2024.69STA = 4010+82 ELEV = 2024.32STA = 4010+87 ELEV = 2022.52 STA = 4010+92 ELEV = 2024.02 STA = 4011+11 ELEV = 2023.21STA = 4011+21ELEV = 2021.31STA = 4011+26 ELEV = 2022.81 STA = 4011+34 ELEV = 2022.41 STA = 4011+86ELEV = 2018.78STA = 4011+91 ELEV = 2020.28 STA = 4011+51 ELEV = 2021.85STA = 4011+57ELEV = 2020.05STA = 4011+61 ELEV = 2021.55 STA = 4011+81 ELEV = 2020.58STA = 4011+37ELEV = 2021.66STA = 4011+40 ELEV = 2022.26 STA = 4012+04 ELEV = 2019.57STA = 4012+09ELEV = 2017.77STA = 4012+14ELEV = 2019.27STA = 4012+32 ELEV = 2018.33STA = 4012+38ELEV = 2016.53STA = 4012+42 ELEV = 2018.03 STA = 4008+52ELEV = 2035.38STA = 4008+77ELEV = 2034.39STA = 4008+97ELEV = 2033.63 STA = 4009+42ELEV = 2031.57STA = 4010+39 ELEV = 2025.92STA = 4009+83ELEV = 2027.30STA = 4009+11ELEV = 2031.59 -3.0%-4.4%-3.9%-7.2%-3.8%-4.3%-4.4%-4.3%-4.3%-7.1%-7.2%-5.3%-3.8%-9.1%-4.9%-4.6%-3.0%-4.1%-20.5%-4.9%-3.6%-5.0%-5.4%-5.1%-5.4%EXISTING GROUNDPROPOSED GRADEPROPOSED BANKFULLOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECECECECEOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECECECECE20202 0 2 5 20302020 2025 20302035 2030 2035 2040UT4 UT3STA. 4010+46END UT3 REACH 2B - RESTORATIONBEGIN UT3 REACH 3 - ENHANCEMENT ISTA. 5002+29END UT4 REACH 2 - ENHANCEMENT IEXISTING POWER LINETHROUGH FIELD TOBE ABANDONED4008+004009+004010+004011+004012+004013+005002+295002+00 20302035 202020202025203020202025REMOVE EXISTING CULVERTMATCH LINE - STA 4008+30 MATCH LINE - STA 4012+50 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.4.3 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina UT3 Stream Plan and Profile 0'4'8'12'(VERTICAL) 20052010201520202025200520102015202020254012+504013+004013+504014+004014+50-0.1%-4.5%-3.1%-4.4%-2.2%-3.4%-0.1%-4.5%-3.1%-4.4%-2.2%-3.4%STA = 4014+29 ELEV = 2011.99 STA = 4012+89ELEV = 2016.06STA = 4012+84ELEV = 2014.56STA = 4013+93 ELEV = 2012.87STA = 4013+88ELEV = 2011.37STA = 4013+59 ELEV = 2013.65 STA = 4013+50 ELEV = 2012.15 STA = 4013+41 ELEV = 2014.14 STA = 4013+21 ELEV = 2015.04 STA = 4013+12 ELEV = 2015.35STA = 4013+17ELEV = 2013.54STA = 4012+79ELEV = 2016.43 STA = 4012+65ELEV = 2017.04STA = 4012+55ELEV = 2017.34STA = 4012+60ELEV = 2015.54STA = 4013+83 ELEV = 2013.12 STA = 4014+19 ELEV = 2012.00-2.6%-3.1%EXISTING GROUNDPROPOSED GRADEPROPOSED BANKFULLOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOHEOHEOHEOHEOHEOHEOHEOHEOHEOHEOHEOHECECECECECECECECECECECECECECECECECECECECECECECECECECECECEOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOHEOHEOHEOHEOHEOHEOHEOHEOHEOHEOHEOHECECECECECECECECECECECECECECECECECECECECECECECECECECECECEX X X X X X 20102015202020252030203520402020202520302015202020252030203020302 0 1 5 2020 STA. 4014+26END UT3 REACH 3 - ENHANCEMENT IPROPOSED STARTOF POWERLINERELOCATIONNO CHANNEL WORK OR STREAMCREDITING PROPOSED ON UT4AREMOVE EXISTING FENCEWITHIN EASEMENT (TYP)4012+004013+004014+004014+47OUE MIN. 30 FT FROMSTREAM BANKFULL2020202020152020UT3UT4AEAST BUFFALO ROADMATCH LINE - STA 4012+50 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.4.4 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina UT3 Stream Plan and Profile 0'4'8'12'(VERTICAL) 202020252030203520402045205020202025203020352040204520505000+005000+505001+005001+505002+005002+30-2.6%-4.1%-2.6%-4.1%STA = 5000+52ELEV = 2035.00 STA = 5002+29ELEV = 2026.23STA = 5000+94 ELEV = 2031.36 STA = 5002+02 ELEV = 2026.96 -2.6%-8.6%-4.1%EXISTING 24" CMPINV.IN 2037.40'INV.OUT 2033.90'STA = 5000+08ELEV = 2037.40STA = 5000+52ELEV = 2033.90 EXISTING GROUNDPROPOSED GRADEPROPOSED BANKFULLOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECECECE CE CE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECE CE CE CE CE CE CE CE OUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECECECE CE CE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECE CE CE CE CE CE CE CE 2025203020302035STA. 5000+52BEGIN UT4 REACH 2 - ENHANCEMENT ISTA. 4010+46END UT3 REACH 3 - RESTORATIONBEGIN UT3 REACH 4 - ENHANCEMENT IISTA. 5002+29END UT4 REACH 2 - ENHANCEMENT IREMOVE SPRING HOUSEPROTECT 24" CMP CULVERT TO REMAININV IN: 2037.40INV OUT: 2033.90'STRUCTURE LOCATION TO BEDESIGNATED IN THE FIELD BASEDON JUNCUS STABILIZATION4010+0 0 401 1 + 0 0 5 0 0 2 + 2 95000+005001+005002+00203020252030 2025 STA. 5000+65END ROWBEGIN UT4 REACH 2 -RESTORATION CREDITU T 3UT4EAST BUFFALO ROAD UT 3 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.5.1 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina UT4 Stream Plan and Profile 0'4'8'12'(VERTICAL)NOTE:APPLY CASCADING RIFFLE-POOLSEQUENCE WHERE INDICATED IN PLANVIEW, USE DETAIL 3, SHEET 6.1 20252030203520402045205020552060202520302035204020452050205520606000+006000+506001+006001+506002+006002+50-4.4%-4.4%-4.4%-4.4%-4.4%-4.4%STA = 6000+67ELEV = 2042.49STA = 6000+76ELEV = 2041.47 STA = 6000+99 ELEV = 2040.04 STA = 6001+21 ELEV = 2039.08 STA = 6001+37 ELEV = 2038.36 STA = 6001+69 ELEV = 2036.96 STA = 6001+87 ELEV = 2036.17 STA = 6002+07 ELEV = 2035.25 STA = 6002+43 ELEV = 2032.81 STA = 6000+92 ELEV = 2040.36STA = 6000+81ELEV = 2040.12STA = 6000+86 ELEV = 2040.81STA = 6001+06ELEV = 2038.75STA = 6001+11 ELEV = 2039.50STA = 6001+24ELEV = 2038.23STA = 6001+28 ELEV = 2038.75STA = 6001+42ELEV = 2037.13STA = 6001+49 ELEV = 2037.83STA = 6001+55ELEV = 2036.89STA = 6001+59 ELEV = 2037.41STA = 6001+72ELEV = 2036.12STA = 6001+75 ELEV = 2036.67STA = 6001+92ELEV = 2034.92STA = 6001+97 ELEV = 2035.71 STA = 6002+15 ELEV = 2034.76STA = 6002+18ELEV = 2033.56STA = 6002+23 ELEV = 2034.19STA = 6002+26ELEV = 2033.02STA = 6002+31 ELEV = 2033.65STA = 6002+10ELEV = 2034.13-12.0%-4.4%-4.4%-4.4%-4.4%-4.4%-4.4%-7.1%-6.9%-19.7%-24.0%-24.0%-17.2%-22.6%-12.0%-6.9%-4.4%-7.1%EXISTING GROUNDPROPOSED GRADEPROPOSED BANKFULLXXXXXXXXXXXXXXX2040 2035UT5EAST BUFFALO CREEKSTA. 1013+57EAST BUFFALO CREEK - RESTORATIONSTA 6002+48END UT5 - ENHANCEMENT IISTA 6000+67BEGIN UT5 - ENHANCEMENT IIREMOVE EXISTING CULVERTOLD EAST BUFFALO CREEK CHANNELTO BE FILLED AFTER REUSE OFMATERIAL IN NEW CHANNEL1012+001013+00 1014+006000+006001+006002+002035 2040 2035 2040204520452035 2.1.12.1.22.1.32.1.42.4.42.4.32.4.22.4.12.2.12.5.12.3.12.3.22.6.1EAST BUFFALO CREEKUT1UT2UT3UT4UT 5 Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION 0'20'40'60'(HORIZONTAL)N X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Profiles.dwg August 4, 2020 005-45020 HB ER JM 2.6.1 August 4, 2020 Sheet IndexEast Buffalo Mitigation Site Graham County, North Carolina UT5 Stream Plan and Profile 0'4'8'12'(VERTICAL)ENHANCEMENT II:1. REMOVE PRIVET AND INVASIVE SPECIES2. PLANT MINIMUM 150' TYP. BUFFER ON RIGHTBANK3. SUPPLEMENTAL PLANTING ON LEFT BANK4. SAVE ALL TREES NOT SPECIFICALLY IDENTIFIEDFOR REMOVAL Streambank Planting ZoneLive Stakes: > 8' TOBSpeciesCommon NameMax SpacingIndiv. SpacingMin. SizeStratumPercent OfStemsSalix nigraBlack Willow840.5" cal.Canopy10%Salix sericeaSilky Willow840.5" cal.Subcanopy30%Cornus amomumSilky Dogwood840.5" cal.Subcanopy25%Sambucus canadensisElderberry840.5" cal.Subcanopy10%Physocarpos opulifoliusNinebark840.5" cal.Shrub25%*Percentages may be altered by designer to maximum of 40%Total100%Herbaceous PlugsJuncus effususCommon Rush103-52.0" plugHerb50%Carex luridaShallow Sedge103-52.0" plugHerb20%Carex crinitaFringed Sedge103-52.0" plugHerb15%Cyperus strigosusStraw-colored Flatsedge103-52.0" plugHerb15%Total100%*Plug species and spacing may be adjusted by designer, minimum 3 species. Max spacing may be increased by designer.X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Planting.dwg August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina Planting Plan 005-45020 HB ER JM 3.0 August 4, 2020 Note:Permanent Riparian seeding in all disturbed areas within Conservation Easement andright-of-ways.NCDOT Right-of-way planting subject to NCDOT approval.See Detail 1, Sheet 6.7 forLive Staking instructions onstreambanks.Note:OPTIONAL: TRANSPLANTS andCONTAINERIZED PLANTS to beused at Engineer's discretionfor streambank and floodplainplanting.Low Growing Species Utility Right-of-way Planting ZoneSheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTIONRiparian Seeding - Open CanopyPure Live Seed (20 lbs/acre)Approved DateSpecies NameCommon NameStratumDensity (lbs/acre)All YearPanicum ancepsFall PanicumHerb2.0All YearPanicum virgatumSwitchgrassHerb1.0All YearSchizachyrium scopariumLittle BluestemHerb1.5All YearSorghastrum nutansIndiangrassHerb2.0All YearEchinochloa muricataBarnyard GrassHerb1.0All YearDichantheliumclandestinumDeertongueHerb2.0All YearElymus virginianaVirginia Wild RyeHerb2.5All YearElymus ripariusRiver Bank Wild RyeHerb1.0All YearCarex vulpinoideaFox SedgeHerb1.5All YearJuncus effususCommon RushHerb0.5All YearJuncus tenuisPath RushHerb0.5All YearHeliopsis helianthoidesOxeye SunflowerHerb1.0All YearSenna hebecarpaWild SennaHerb1.0All YearBidens aristosaBur-marigoldHerb1.0All YearRudbeckia hirtaBlackeyed SusanHerb1.0All YearCephalanthus occidentalisButton BushShrub0.520.0Riparian Planting ZoneSpecies***Common NameMax SpacingIndiv.SpacingMin. Caliper SizeStratumPercent OfStemsPlatanus occidentalisSycamore126-12'0.25"Canopy5%Prunus serotinaBlack Cherry126-12'0.25"Canopy10%Populus deltoidesEastern Cottonwood126-12'0.25"Canopy10%Tilia AmericanaAmerican Linden126-12'0.25"Canopy10%Diospyros virginianaPersimmon126-12'0.25"Canopy10%Quercus rubraNorthern Red Oak126-12'0.25"Canopy10%Acer negundoBoxelder126-12'0.25"Canopy10%Ulmus rubraSlippery Elm126-12'0.25"Canopy10%Betula lenta*Sweet Birch126-12'0.25"Canopy5%Nyssa sylvaticaBlack Gum126-12'0.25"Canopy5%Asimina trilobaPaw Paw126-12'0.25"Subcanopy5%Corylus americana**American Hazelnut126-12'0.25"Subcanopy5%Liriodendron tulipiferaTulip Poplar126-12'0.25"Canopy3%* Preferred substitutes: B. alleghaniensis or Magnolia fraseri, acuminata or fraseri or other substitutes if not available98%**Preferred substitutes: Lindera benzoin, Halesia caroliniana, or other substitutes if not available***A minimum of 10 species will be planted from this list. Other substitutes are allowable as follows (up to 10% each): Fagus grandifolia,Quercus falca, Oxydendrum arboreum , Hamamelis virginiana, Quercus alba, Carpinus caroliniana, Betula alleghaniensis, Aesculus flava, Acerrubrum (as volunteer only)Wetland Planting ZoneSpeciesCommon NameMax SpacingIndiv.SpacingMin. Caliper SizeStratumPercentOf StemsBare Root or Tubling*Plantanus occidentalisSycamore12 ft6-12'0.25"Canopy8%Liriodendron tulipiferaTulip Poplar12 ft6-12'0.25"Canopy2%Alnus serrulataTag Alder12 ft6-12'0.25"Subcanopy10%Populus deltoidesEastern Cottowood12 ft6-12'0.25"Canopy8%Malus angustifoliaSouthern Crabapple12 ft6-12'0.25"Canopy8%Tilia americanaWhite Basswood12 ft6-12'0.25"Canopy5%Acer negundoBoxelder12 ft6-12'0.25"Canopy6%Ulmus rubraSlippery Elm12 ft6-12'0.25"Canopy6%Oxydendrum arboreumSourwood12 ft6-12'0.25"Canopy5%Euonymus americanusStrawberry Bush12 ft6-12'0.25"Shrub2%Quercus rubraNorthern Red Oak12 ft6-12'0.25"Canopy5%Betula lentaSweet Birch12 ft6-12'0.25"Canopy5% Carpinus carolinianaAmerican Hornbeam12 ft6-12'0.25"Canopy2%Hamamelis virginianaWitch Hazel12 ft6-12'0.25"Subcanopy2%Nyssa sylvaticaBlack Gum12 ft6-12'0.25"Shrub6%Clethra acuminatasweet-pepperbush12 ft6-12'0.25"Shrub2%Ilex montanaMountain winterberry12 ft6-12'0.25"Shrub1%Bare Root, Live Stake or Tubling*Salix nigraBlack Willow12 ft6-12'0.25"Canopy7%Salix sericeaSilky Willow12 ft6-12'0.25"Subcanopy5%Cephalanthus occidentalisButtonbush12 ft6-12'0.25"Subcanopy5%100%Elective Wetland Plugs**SpeciesCommon NameMax SpacingIndiv.SpacingMin. SizeStratumPercentOf PlugsXanthorhiza simplicissimaYellowrootN/ATBDN/AHerbN/AOsmunda cinnamomeaCinnamon fernN/ATBDN/AHerbN/AOsmunda claytonianaInterrupted fernN/ATBDN/AHerbN/AArisaema triphyllum spp.TriphyllumJack-in-the-pulpitN/ATBDN/AHerbN/ACarex atlanticaPricky bog sedgeN/ATBDN/AHerbN/AScirpus spp.WoolgrassN/ATBDN/AHerbN/A*A minimum of 10 species will be planted from this list. It is anticipated that some species listed will be unavailable from commerical source asbare root species. Designer has the option to increase any species to maximum of 15%. Where available in larger size plant material, designerwill consider using in larger size as a smaller percentage. Acer rubrum may be used as a volunteer species.**The purpose of elective wetland plugs list is to allow designer to elect, at their discretion, to plant species not available in seed mix, butavailable as plugs, 4" containers or similar. The number of wetland plugs to be planted will be determined by the designer and the purpose willbe to establish small colonies that can expand over time. Where unavailable or infeasible to obtain, wetland plugs may be eliminated.Temporary SeedingApproved DateTypePlanting Rate (lbs/acre)Jan 1 - May 1Rye Grain (Secale cereale)120Humic DG (Lime)200Soil conditioner (Humic DG)50In-houseStraw Mulch4000May 1 - Aug 15German Millet (Setaria italica)40Ladino/Red/Crimson Clover20Humic DG (Lime)200Soil conditioner (Humic DG)50In-houseStraw Mulch4000Aug 15 - Dec 30Rye Grain (Secale cereale)120Ladino/Red/Crimson Clover20Humic DG (Lime)200Soil conditioner (Humic DG)100In-houseStraw Mulch4000Note:All disturbed areas.See Detail 3, Sheet 6.7 forBare Root installation instructions.Utility Right-of Way Planting Zone - Shrub and Low Growing SpeciesSpeciesCommon NameMax SpacingIndiv. SpacingMin. Caliper SizeStratumPercent OfStemsAlnus serrulataTag Alder12 ft6-12'0.25"Subcanopy15%Itea virginicaVirginia Sweetspire12 ft6-12'0.25"Shrub10%Ilex verticillataWinterberry12 ft6-12'0.25"Subcanopy10%Rhododendron maximumRosebay Rhododendron12 ft6-12'0.25"Shrub10%Kalmia latifoliaMountain Laurel12 ft6-12'0.25"Shub10%Physocarpus opulifoliusNinebark12 ft6-12'0.25"Shrub10%Sambucus canadensisElderberry12 ft6-12'0.25"Subcanopy10%Cephalanthus occidentalisButtonbush12 ft6-12'0.25"Subcanopy5%Euonymus americanusStrawberry Bush12 ft6-12'0.25"Shrub10%Lindera benzoinSpicebush12 ft6-12'0.25"Subcanopy10%*No planting within access ways (15-20' corridor used for vehicular maintenance access)100%**Substitutes include Calycanthus floridus, Clethra acuminata, Viburnum acerfolium, and Leucothoe fotanesiana***Minimum of five species shall be planted in utility ROW, ROW species may be livestaked or installed as tubling where applicable.Supplemental Shaded Area Riparian Planting ZoneSpecies*Common NameMaxSpacingIndiv.SpacingMin.CaliperSizeStratumPercentOf StemsAlnus serrulataTag alder126-12'0.25"Subcanopy20%Itea virginica Virginia sweetspire126-12'0.25"Shrub20%Itex veritcillata Winterberry126-12'0.25"Subcanopy10%Physocarpus opulifolius Ninebark126-12'0.25"Shrub20%Sambucus canadenis Elderberry126-12'0.25"Shrub20%Viburnum lentago Nannyberry126-12'0.25"Shrub10%*Shade tolerant Riparian Planting Zone or Wetland Planting species may be substituted100%Wetland Seeding - Open CanopyPure Live Seed (20 lbs/acre)Approved DateSpecies NameCommon NameStratumDensity (lbs/acre)All YearPolygonum sagittatumArrowleaf TearthumbHerb0.5All YearColeatoenia ancepsBeaked PanicgrassHerb1.5All YearPanicum virgatumSwitchgrassHerb2.0All YearVernonia noveboracensisIronweedHerb1.0All YearEupatorium fistulosumJoe Pye WeedHerb0.5All YearSagittaria latifoliaBroadleaf ArrowheadHerb0.5All YearDichanthelium clandestinumDeertongueHerb1.5All YearElymus virginianaVirginia Wild RyeHerb2.0All YearScirpus cyperinusWoolgrassHerb1.0All YearCarex vulpinoideaFox SedgeHerb1.5All YearJuncus effususCommon RushHerb1.0All YearJuncus tenuisPath RushHerb1.0All YearCarex frankiiFrank's SedgeHerb1.0All YearCarex luridaShallow SedgeHerb1.0All YearBidens aristosaBur-marigoldHerb1.0All YearCarex crinitaFringed SedgeHerb1.0All YearHamamelis virginianaWitchhazelShrub1.0All YearCephalanthus occidentalisButton BushShrub1.020.0 X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Planting.dwg August 4, 2020 005-45020 HB ER JM 3.1 August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina Planting Plan Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION0'80'160'240'(HORIZONTAL)NOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOHE OHE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECESHEET 3.2SHEET 3.3EAST BUFFALO CREEKUT1UT2UT3UT4UT5 UT7 UT6UT4A EAST BUFFALO CREEKUT3E A S T B U F F A L O R O A D EAST BUFFALO ROAD X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Planting.dwg August 4, 2020 005-45020 HB ER JM 3.2 August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina Planting Plan Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION0'40'80'120'(HORIZONTAL)NOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOHE OHE OHE OHE OHE SAFCE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECECECEMATCHLINE SHEET 3.2EAST BUFFALO CREEKUT4UT 5UT4AUT3 E A S T B U F F A L O R O A D 0'40'80'120'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Planting.dwg August 4, 2020 005-45020 HB ER JM 3.3 August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina Planting Plan Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTIONOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECEMATCHLINE SHEET 3.2 UT1UT2UT3EAST BUFFA LO CREEKEAST BUFFALO ROAD 0'80'160'240'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Planting.dwg August 4, 2020 005-45020 HB ER JM 3.4 August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina Invasives Treatment Plan Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTIONINVASIVE REMOVAL NOTES:*NO EXCAVATED SOIL TO BE USED ON PROPOSED STREAMBANKS DUE TO INVASIVE ROOT PRESENCEDENSE INFESTATION APPROXIMATE LIMITSOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUERICHARD WAYNE PENNINGTON, JR &WIFE, CYNTHIA PENNINGTONPORTION OF PIN: 5662-00-09-0042DB: 240 PG: 770RICHARD PENNINGTON ANDWIFE, MARGARET PENNINGTONPORTION OF PIN: 5662-00-09-0042DB: 128 PG: 799REF: DB: 126 PG: 713REF: DB: 117 PG: 746HANNU MELARTI ANDWIFE, ULRIKA MELARTIPIN: 5662-00-04-0006DB: 288 PG: 501CARL D. LEE ANDWIFE, JOAN B. LEEPIN: 5662-00-09-0024DB: 260 PG: 609PG: 5 PG: 980BO COLLINS AND WIFE,HELEN M. COLLINSPIN: 5662-00-09-0033DB: 367 PG: 550HUGH DARRELL ORR ANDWIFE, PATRICIA ORRPIN: 5662-00-09-0028DB: 72 PG: 553RAMLONGHORN, LLCPORTION OF PIN: 5662-00-09-0043DB: 374 PG: 420PC: DB PG: 1000HANNU MELARTI ANDWIFE, ULRIKA MELARTI(THROUGH SUBDIVISION ANDRECOMBINATION)OUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOHE OHE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECESTAGING AREAAREA TO BE MONITORED FORINVASIVE BULL THISTLE ANDCANADA THISTLEDENSE PRIVET AND MULTIFLORAINFESTATION TO BE PHYSICALLYREMOVED DURING SITE GRADINGREMOVE DENSE PRIVET ANDMULTIFLORA ROSE INFESTATIONSPHYSICALLY CLEAR CUT WHEREPOSSIBLE AND THROUGHCUT-STUMP/SPRAY TREATMENTELSEWHEREINVASIVE ENGLISHIVY TO BEREMOVED DURINGSITE GRADINGINVASIVE ENGLISH IVY TO BECHEMICALLY TREATED MULTIPLESEASONS BEGINNING SPRING 2020(APPROXIMATE AREA)CLEAR CUT ANDCHEMICALLY TREATPRIVET IN WOODSBETWEEN UT5 & UT7DENSE PRIVET INFESTATION ON BOTH BANKSTO BE REMOVED DURING SITE GRADING *DENSE PRIVET INFESTATION ON BOTH BANKSTO BE REMOVED DURING SITE GRADING *MULTIFLORA AND PRIVET TO BECHEMICALLY TREATED(APPROXIMATE AREA)PRIVET ALONG BANK TO BECHEMICALLY TREATED WITHCUT-STUMP METHOD ANDBANKS SUPPLEMENTALLYLIVESTAKEDSEE PLANTING NOTES FORPRIMARY AND SECONDARYROAD NATURALIZATION ONSHEET 5.0EAST BUFFALO CREEKUT1UT2UT3UT4UT5 UT7 UT6UT4A EAST BUFFALO CREEKUT3E A S T B U F F A L O R O A D EAST BUFFALO ROADWOOD LINE TO BEMECHANICALLY TREATED(APPROXIMATELY 10' INTOWOODS) X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - ESC Plan.dwg August 4, 2020 005-45020 HB ER JM 4.0 August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina ESC Overview Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION0'80'160'240'(HORIZONTAL)NNOTES:1.NO OFFSITE WASTE OR BORROW SITE SHALL BE USED.2.CONDUCT STREAMBED AND BANK WORK STABILIZING DISTURBEDAREAS PRIOR TO THE END OF EACH WORK DAY SO THAT FLOW MAYBE TURNED BACK INTO THE CHANNEL.3.PROTECT INTEGRITY OF PAVEMENT AT ALL CONSTRUCTIONENTRANCES OFF EAST BUFFALO ROAD.4.MAINTAIN ENTRANCES PER DETAIL.LOD: 23 ACRESOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOULOD LOD LODLODLODLODLODLODLODLODLODLODLODLODLODLODL O D LOD L O D L O D LODLODLODLODLOD LODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLOD LOD LOD LOD LOD LOD LOD LOD LOD LODLODLODLODLODLODLODLOD LO D L O D LO D LOD LO D LODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLOD LOD LO D LODLODLOD LOD LOD LOD LODLO D LOD LODLODLOD LOD LOD LOD L O D LODL O D LO D LOD LODLODLODOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOHE OHE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECESHEET 3.2SHEET 3.3[x][x ][x][x][x][x][x][ x ][x][x][x][x][x][x][x]T[x][x]SAFSAFSAFSAFSAFLODLODLODLODLODLODLODLODLODLODLODSAF[x][x][x][x][x][x]TEND UT3 REACH 2ABEGIN UT3 REACH 2BEND UT3 REACH 1BEGIN UT3 REACH 2AEND UT3 REACH 2ABEGIN UT3 REACH 3END UT4 REACH 2END UT2 REACH 1BEGIN UT2 REACH 2END EAST BUFFALO CREEK REACH 1BEGIN EAST BUFFALO CREEK REACH 2END EAST BUFFALO CREEK REACH 2BEGIN EAST BUFFALO CREEK REACH 3TTTEAST BUFFALO CREEKUT1UT2UT3UT4UT7 UT6UT4A EAST BUFFA LO CREEKUT3U T 5EAST BUFFALO ROADEAST BUFFALO ROADEND EAST BUFFALO CREEK REACH 3BEGIN UT4 REACH 2END UT3 REACH 3WETLAND RE-ESTABLISHMENTTBEGIN EAST BUFFALO CREEK REACH 1END UT2 REACH 2END UT5T LOD LOD LOD LO D LOD LODLODLODLODLODLODLODROAD NATURALIZATION SEEDECOMMISSIONING NOTESON SHEET 5.0ROAD NATURALIZATION SEEDECOMMISSIONING NOTESON SHEET 5.0INVASIVE SPECIESMANAGEMENT[x ][x][x]TUSE EXISTING SITEENTRANCEUSE EXISTING SITEENTRANCEOHEOHEBEGIN UT1END UT1 X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - ESC Plan.dwg August 4, 2020 005-45020 HB ER JM 4.1 August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina ESC Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTION0'40'80'120'(HORIZONTAL)NOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOULOD LOD LOD LO D LO D LODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODL O D L O D L O D LOD L O D L O D L O D LODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LODLODLODLODLODLODLODLODLODLODLODLODLOD LOD LOD LODLODLODLODLODLODOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOHE OHE OHE OHE OHE SAFCE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CECECECECECECECECECECECECECECECECECECECECECECECECECECEEAST BUFFALO CREEKUT4UT 5UT4AUT3EAST BUFFALO ROAD[x][x][x ] [x ][x][x][x][x][ x ] [ x ][x][x][x][x][x][x][x][x]SAFSAFSAFSAFSAFSAFSAFSAFSAFSAFLODLODLODLODLODLODLODLODLODLODLODLODLOD LODLODLODLODLODLODLODLODLODSAFSAF[x] [x][x][x][x][x][x][x][x][x][x] [x][x][x][x]TTTEAST BUFFA LO ROADEND UT3 REACH 2ABEGIN UT3 REACH 3END UT4 REACH 2END EAST BUFFALO CREEK REACH 2BEGIN EAST BUFFALO CREEK REACH 3MATCHLINE SHEET 3.2WILDLANDS IS OBTAININGAN ENCROACHMENTAGREEMENT WITH NCDOTFOR WORK WITHIN THERIGHT OF WAY LIMITS.TEMPORARY CROSSING OVEREXISTING PIPE, REMOVE UPONCOMPLETION OF PROJECT.UT 5 T LO D LOD LODLODEND EAST BUFFALOCREEK REACH 3END UT3 REACH 3BEGIN UT4 REACH 2END UT5 0'40'80'120'(HORIZONTAL)NX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - ESC Plan.dwg August 4, 2020 005-45020 HB ER JM 4.2 August 4, 2020 East Buffalo Mitigation Site Graham County, North Carolina ESC Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTIONOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOULODLODLODLODLODLOD LODLOD LODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLODLOD LOD LOD L O D LODLODLODL O D L O D LO D LO D LOD LODLODLODLODLODLODOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECECEUT1UT2UT3EAST BUFFA LO CREEK[x][x][x][x][x][x][x][x][x][x][x] [x][x][x][x][x]TWETLAND RE-ESTABLISHMENTTEND UT3 REACH 2ABEGIN UT3 REACH 2BEND UT3 REACH 1BEGIN UT3 REACH 2AEND UT2 REACH 1BEGIN UT2 REACH 2END EAST BUFFALO CREEK REACH 1BEGIN EAST BUFFALO CREEK REACH 2MATCHLINE SHEET 3.2WILDLANDS IS OBTAINING ANENCROACHMENT AGREEMENTWITH NCDOT FOR WORK WITHINTHE RIGHT OF WAY LIMITSALL SLOPES STEEPER THAN 3:1SUBJECT TO 7-DAY STABILIZATIONREQUIREMENTS. SEED ANDSTRAW IMMEDIATELY, APPLYSLOPE MATTING IF DIRECTEDALL SLOPES STEEPER THAN 3:1SUBJECT TO 7-DAY STABILIZATIONREQUIREMENTS. SEED ANDSTRAW IMMEDIATELY, APPLYSLOPE MATTING IF DIRECTEDTEND UT2 REACH 2[x][x][x][x][x][x]TOHEOHEOHEOHEOHEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEOUEBEGIN EAST BUFFALO REACH 1BEGIN UT1END UT1 OUOUOUOUOUOUOUOUOUOUO U O U O U E O U E O U E O U E0'100'200'300'(HORIZONTAL)East Buffalo Mitigation Site Graham County, North Carolina Road Naturalization and Crossing Removal Overview Additional Grading 005-45020 HB ER JM 5.0 August 4, 2020 NUT2 REACH 1 CULVERTSHEET 5.1UT3 REACH 1 CULVERTSHEET 5.2UT4 REACH 1 CULVERTSHEET 5.3Sheet Checked By: Job Number: Drawn By: Project Engineer: Date:Revisions: 167-B Haywood Rd Asheville, NC 28806 Tel: 828.774.5547 License No. F-0831JACOB P. MCLEA N 033578N O R TH CAROLINAPR OFESSIONALENGINEER SEALP R E L IM INA R YDO NO T U S E FO RCONSTRUCTIONX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Culvert Details.dwg August 4, 2020UT5UT7UT6EAST BUFFALO CREEKUT2UT1UT4UT4AUT4BUT3PRIMARY SOIL ROAD DECOMMISSIONING·OBSTRUCT VEHICULAR PASSAGE THROUGH INTERMITTENT OBSTRUCTION OF THE ROAD WITH BOULDERS, TREES OR BERMS/GRADING TO REDUCE THEPASSABLE WIDTH FOR THE PREVENTION OF TRUCKS AND 4-WHEELER TRAFFIC TO THE EXTENT PRACTICABLE USING ON-SITE MATERIALS.·NATURALIZE EXISTING FORD AND CULVERTED STREAM CROSSINGS AS PROVIDED ON SUBSEQUENT SHEETS, RESTORING PROPER DIMENSION, PATTERN ANDPROFILE TO STREAMS.·CROSSINGS WILL BE LIVE-STAKED AND VARIABLY DECOMMISSIONED WITH TRANSPLANTS, WOOD OR BOTH FROM ADJACENT AREAS.·RESTORE FLOW ALONG ROADS BY REGRADING ROADS TO DISPERSE RUNOFF AND SHED WATER BEFORE FLOW IS CONCENTRATED. ·INSTALL AN AVERAGE OF TWO WATER SHEDDING SECTIONS AND AT LEAST 10 TREES WILL BE PLANTED EVERY 300', AND MORE FREQUENTLY WHERE THEFACTORS OF CONTRIBUTING DRAINAGE AREA, GRADIENT, AND EXISTING ROAD CONDITIONS WARRANT. SECTIONS WILL BE SELECTED TO MAXIMIZE THEIREFFECTIVENESS AND WITH CONSIDERATION OF CONTRIBUTING DRAINAGE AREA FROM UPGRADIENT SLOPES. WATER SHEDDING SECTIONS WILL INCLUDEDOWNSLOPE BRUSH AND DEBRIS TO REDISTRIBUTE FLOWS NATURALLY WITHIN THE BUFFER. DUE TO THE FREQUENCY OF PROPOSED ENHANCEMENTS, ITIS ANTICIPATED THAT ONLY SMALL SCALE SHORT-TERM DISPERSAL MEASURES WILL BE NECESSARY.·MAJOR GULLIES ALONG ROADS WILL BE PLUGGED AND GRADED OUT OVER SIGNIFICANT PORTIONS OF THEIR LENGTH IN ORDER TO PROMOTEREVEGETATION OF OLD ROAD BEDS.·NATURALIZE THE ROAD PARALLELING UT3 REACH 1 UPSTREAM OF WHERE IT CROSSES THE LOWER ROAD. DUE TO THE STEEP NATURE OF THE AREA ANDSUNKEN CONDITION OF THE ROAD, THIS MAY REQUIRE ROCKY SWALE OUTLETS TO THE CREEK WITH BRUSH CHECK DAMS TO REDUCE SHORT-TERM RISK OFSEDIMENT LOADING. INSTALL A MINIMUM OF THREE OUTLETS TO THE CREEK TO FORCE WATER OFF OF THE SUNK-IN ROAD, AND APPLY BRUSH AND OTHERBLOCKAGES INTERMITTENTLY ALONG THE ROAD TO FURTHER DIMINISH IMPACTS AND DISPERSE CONCENTRATED RUNOFF.SECONDARY SOIL ROAD DECOMMISSIONING·ALONG THE UPPER ROAD, THE FORD CROSSINGS NEAR THE STREAM ORIGINS OF UT4 & UT4B WILL BE LIVE-STAKED AND NATURALIZED WITH HAND-WORK. IN ADDITION, THE APPROACHES TO THESE UPPER CROSSINGS WILL BE TREATED TO DIVERT RUNOFF OFF OF THE ROAD SECTION INTO THE BUFFER IN THESAME MANNER AS FOR THE PRIORITY 1 ROAD SECTIONS WHERE A MINIMUM OF TWO WATER SHEDDING SECTIONS ARE ESTABLISHED EVERY 300'. ·ALL PRIORITY 2 ROADS WILL BE TREATED TO ENSURE THEY SHED WATER AT THIS FREQUENCY WHERE THEY ARE NOT CURRENTLY SHEDDING WATER IN ANATURAL PATTERN. ·ALONG ROADS SITUATED ON RIDGELINES, OBSTRUCTIONS WILL BE ESTABLISHED AND TREES PLANTED AT A FREQUENCY OF ONE OBSTRUCTION AND 10TREES PER 300'. END PRIMARY ROAD DECOMMISSIONINGSTART SECONDARY ROADDECOMMISSIONINGEND SECONDARY ROADDECOMMISSIONINGSTART PRIMARY ROADDECOMMISSIONINGSTART SECONDARY ROADDECOMMISSIONINGEND SECONDARY ROAD DECOMMISSIONINGSTART PRIMARY ROADDECOMMISSIONINGEND PRIMARY ROAD DECOMMISSIONINGSTART SECONDARY ROADDECOMMISSIONINGEND SECONDARY ROADDECOMMISSIONINGEND SECONDARY ROADDECOMMISSIONINGSTART SECONDARY ROADDECOMMISSIONINGSTART PRIMARY ROADDECOMMISSIONINGSTART PRIMARY ROADDECOMMISSIONINGEAST BUFFALO ROA D REGRADE ENTRY OFF PAVED ROAD TODETER VEHICULAR ACCESSREGRADE ENTRY OFF PAVED ROADTO DETER VEHICULAR ACCESSEND PRIMARY ROADDECOMMISSIONINGSTART PRIMARY ROADDECOMMISSIONINGEXCLUSION AREA #2LOOSEN SOIL ALONG EXISTINGFARM ACCESS ROAD FORPLANTING - ACCESS ROAD TOBE ABANDONEDREGRADE ACCESS FROM EXCLUSION AREATO DETER VEHICULAR ACCESSREGRADE ACCESS FROM EXCLUSION AREATO DETER VEHICULAR ACCESS 0+00 0+ 6 7 2170 2175 218 0 2185 EXISTING SOIL ROAD BEGIN PROFILE RESTORATION END PROFILE RESTORATION REMOVE EXISTING SUBSURFACE DRAIN EXISTING STREAM ALIGNMENT APPLY CASCADING RIFFLE-POOL SEQUENCE DETAIL ON SHEET 6.1 0+000+80CONDUCT PRIMARY DECOMMISSIONING ALONG SOIL ROAD PER BULLETS ON SHEET 5.0 2165 2170 2175 2180 2185 2165 2170 2175 2180 2185 0+00 0+50 0+80 REMOVE EXISTING SUBSURFACE DRAIN USE RIFFLE CROSS SECTION DIMENSIONS FROM UPSTREAM REFERENCE REACH. EXISTING GRADE STABILIZE ERODING SLOPE 2163 2165 2170 2175 2163 2165 2170 2175 0+00 0+50 0+67 STA = 0+18.78 ELEV = 2169.86 STA = 0+46.75 ELEV = 2166.94 REMOVE EXISTING SUBSURFACE DRAIN USE POOL AND RIFFLE DIMENSION FROM UPSTREAM REFERENCE EXISTING GRADE NPLAN VIEW PROFILE AT CROSSING ℄ - LOOKING DOWNSTREAM PROFILE (HORIZONTAL) 0'10'20'30' (HORIZONTAL) 0'5'10'15' (HORIZONTAL) 0'5'10'15' (VERTICAL) 0'1'2'3' (VERTICAL)East Buffalo Mitigation SiteGraham County, North CarolinaUT2 Reach 1 Crossing RemovalAdditional Grading005-45020HBERJM5.1August 4, 2020SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Culvert Details.dwgAugust 4, 2020UT2 0+000 + 7 8 0+00 0+80 22 1 0 22 1 5 2220 2 2 2 5 2 2 3 0 EXISTING STREAM ALIGNMENT PROPOSED STREAM ALIGNMENT APPROXIMATE LOCATION OF EXISTING SUBSURFACE DRAIN BEGIN PROFILE RESTORATION APPLY CASCADING RIFFLE-POOL SEQUENCE DETAIL ON SHEET 6.1 CONDUCT PRIMARY DECOMMISSIONING ALONG SOIL ROAD PER BULLETS ON SHEET 5.0 2210 2215 2220 2225 2230 2235 2210 2215 2220 2225 2230 2235 0+00 0+50 0+80 EXISTING GRADE APPROXIMATE LOCATION OF EXISTING SUBSURFACE DRAIN TO BE REMOVED USE RIFFLE CROSS SECTION DIMENSIONS FROM UPSTREAM REFERENCE REACH. 2205 2210 2215 2220 2205 2210 2215 2220 0+00 0+50 0+78 USE POOL AND RIFFLE DIMENSION FROM UPSTREAM REFERENCE APPLY WOOD AND ROCK GRADE CONTROL FEATURES AT DROPS PER DETAIL SHEET 6.1 REMOVE PIPE NPLAN VIEW PROFILE AT CROSSING ℄ - LOOKING DOWNSTREAM PROFILE (HORIZONTAL) 0'10'20'30' (HORIZONTAL) 0'5'10'15' (HORIZONTAL) 0'5'10'15' (VERTICAL) 0'1'2'3' (VERTICAL)East Buffalo Mitigation SiteGraham County, North CarolinaUT3 Reach 1 Crossing RemovalAdditional Grading005-45020HBERJM5.2August 4, 2020SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Culvert Details.dwgAugust 4, 2020U T 3 0+ 0 0 0 + 8 00+000+80239023952400APPLY CASCADING RIFFLE-POOL SEQUENCE DETAIL ON SHEET 6.1 USE PRIMARY DECOMMISSIONING ALONG SOIL ROAD PER BULLETS ON SHEET 5.0 PROPOSED/EXISTING STREAM ALIGNMENT EXISTING FORD CROSSING. NO CULVERT FOUND DURING SITE INVESTIGATION. APPROXIMATE BEGIN STREAM PROFILE RESTORATION APPROXIMATE END STREAM WORK 2390 2395 2400 2405 2390 2395 2400 2405 0+00 0+50 0+80 EXISTING GRADE USE RIFFLE AND POOL CROSS SECTION DIMENSIONS FROM UPSTREAM REFERENCE REACH. LOCATION OF EXISTING FORD CROSSING 2383 2385 2390 2395 2400 2383 2385 2390 2395 2400 0+00 0+50 0+80 EXISTING GRADE USE POOL AND RIFFLE DIMENSION FROM UPSTREAM REFERENCE APPLY WOOD AND ROCK GRADE CONTROL FEATURES AT DROPS PER DETAIL SHEET 6.1 NPLAN VIEW PROFILE AT CROSSING ℄ - LOOKING DOWNSTREAM PROFILE (HORIZONTAL) 0'10'20'30' (HORIZONTAL) 0'5'10'15' (HORIZONTAL) 0'5'10'15' (VERTICAL) 0'1'2'3' (VERTICAL)East Buffalo Mitigation SiteGraham County, North CarolinaUT4 Reach 1 Ford NaturalizationAdditional Grading005-45020HBERJM5.3August 4, 2020SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Culvert Details.dwgAugust 4, 2020U T 4 X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.1August 4, 2020Cascading Riffle Not to Scale 2 6.1 Cascade / Step-Pool Spacing Table Species Name POOL SPACING (PS) RANGE PS-A PS-B PS-C POOL LENGTH CASCADE SLOPE RANGE1 East Buffalo Creek - Reach 2 12-42'2-9'3-11% UT2 - Reach 2 6-20'4.5-15% 4 CASCADE-POOL SEQUENCES PS-A CASCADING RIFFLE, SEE DETAIL PS-B PS-CPOOLLENGTH(VARIES)ADD BRUSH OR LOG REVETMENTS AS SHOWN IN PLAN VIEW AND PER THE ASSOCIATED DETAILS INCORPORATE WOOD INTO EVERY 10TH CASCADE (APPROXIMATELY 1 PER 100') PS-D UT3 - Reach 2B 8-28'2-6% UT3 - Reach 2A 6-22'4-18% PS-D 5-10' 2-9' 3-10.5' 9-24'UT4 - Reach 2 3-11%9-24' 1 Low and high ranges to be used sparingly, individual segments may exceed high range in which case rock cascade and/or rock slide details shall apply MATCH PROPOSED GRADE (BANKFULL - Dmax) TO WITHIN -0.2 TO +0.1' AT HEAD OF EACH CASCADE MICROPOOL (TYP) - INCORPORATE INTO CASCADING RIFFLES POOL(TYP) 9-25'UT5 POOL SPACING (PS) NOTES: ·CONTRACTOR MAY VARY POOL SPACING BUT SHALL COMPLETE SEQUENCES TOTALING TO SEQUENCE LENGTH PROVIDED IN TABLE ·ROCK CASCADE OR ROCK SLIDE STRUCTURES SHALL BE USED INSTEAD OF CASCADING RIFFLES FOR SLOPES >15-20% ·INCORPORATE LOG OR ROCK STEPS (FOOTERED STRUCTURES) FROM SHEET 6.2 AS DIRECTED ·SEQUENCES ARE DETAILED OUT ON THE PLANS FOR EAST BUFFALO CREEK AND UT3 BRANCHES- CHANGES TO THESE REACHES MUST BE APPROVED BY DESIGNER SEQUENCE LENGTH A+B+C+D DROPS OF UP TO 1.0' MAY BE USED AT POOL ENTRANCES OR STEEPER WHEN PROTECTED TOE OF SLOPE (TYP) TOP OF BANK (TYP) SEE SECTION B-B' FOR SIZE LENGTH VARIES PER PLAN Section A-A' TOP OF BANK (TYP) Section B-B' A B B' STRUCTURE SIZE RIFFLE MATERIAL (MIN) 2" MAX TAIL OF RIFFLE ELEVATION POINT PER PROFILE HEAD OF RIFFLE ELEVATION POINT PER PROFILE 12-18" RIFFLE THICKNESS RIFFLE MATRIX MUST CONTAIN AT LEAST 30% GRAVEL AND SAND FINES TO MAINTAIN FLOW AT SURFACE OF RIFFLE RIFFLE INVERT PER PROFILE STONE TO ALSO BE WORKED INTO BANKS MIN 2' TO PREVENT WEAK SPOTS ALONG CHANNEL MARGINS STRUCTURE OR 60% STRUCTURE SIZE RIFFLE MATERIAL Cascading Riffle-Pool Sequence Not to Scale 3 6.1 Rock Cascade Not to Scale 1 6.1 NOTES: ·USE AS DIRECTED WITH DETAIL 3/6.1 IN LIEU OF CASCADING RIFFLES WHERE AVERAGE SLOPE EXCEEDS 15-20% (ROCK SLIDE MAY ALSO BE USED FOR THIS SCENARIO). ·MINIMUM SIZE FOR BOULDERS SHALL BE 2' x 2' x 1'. ·VOID SPACES BETWEEN BOULDERS ON CASCADE SHALL BE FILLED WITH SMALLER NATIVE ROCK WHERE AVAILABLE. ·IF NATIVE ROCK IS NOT AVAILABLE, QUARRIED ROCK MAY BE SUBSTITUTED IN THE SAME SIZES. ·ALL SMALLER ROCK SHALL BE HETEROGENEOUS AND WELL MIXED. Profile 5:1 Section A-A' BACKFILL WITH GRADED MIX OF SMALL BOULDERS, COBBLE, GRAVEL AND SAND CASCADE HEIGHT VARIESPER PROFILEDOUBLE STACK BOULDER / ROCK MIX. FILL ALL GAPS BETWEEN LARGE BOULDERS SL O P E V A R I E S (3 3 % M A X ) NATIVE ROCK EQUIVALENT TO CLASS I RIPRAP, VOIDS FILLED WITH ONSITE GRAVEL AND SAND (TYP) FILTER FABRIC EXISTING SOIL TERRACE EXISTING SLOPE FOOTER BOULDER TO EXTEND 18" BELOW POOL INVERT Riffle Sequence Plan View TOP OF BANK TOE OF BANK A B A'B' CASCADE FLOW C C' Section B-B' 5:1 5:1 FOOTER BOULDER HEADER BOULDER DmaxDmaxOVEREXCAVATE 1-2', BACKFILL WITH WELL-GRADED MIX OF SMALL BOULDERS, COBBLE, GRAVEL AND SAND 5:1 DpoolVEGETATED STONE TOE PROTECTION AROUND POOL MARGINS AS SPECIFIED BY DESIGNER, SEE SECTION C-C' POOL INVERT PER TYPICAL SECTION OR PROFILE Section C-C' VEGETATED STONE TOE PROTECTION AROUND POOL MARGINS WHERE SPECIFIED BY DESIGNER. SEE DETAIL 4, SHEET 6.3 ROCK DROPS, SEE 2/6.2, VARY CONFIGURATIONS AS SHOWN MICROPOOLS NOTE ABOUT DETAILS: DETAILS 1/6.1, 2/6.1, 1/6.2, 2/6.2 ARE TO BE USED TO CONSTRUCT SEQUENCES SHOWN IN 3/6.1. DESIGNER MAY INCORPORATE OTHER GRADE CONTROL STRUCTURES. A' 2 UT2 Reach 2 is Enhancement, use where indicated on plans Plan View SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMINARYDO N OT USE F OR CONSTR U CTI O N 7-15%5-8' SPACE AS INDICATED ON PLANS 10'20'12'22'64' 7'15'9'14'45' Low Mobility Mix Material Species Name Class A (2-6") Class 1 (5-17") Minimum Structure Size Riffle Material East Buffalo Creek - Reach 2 60% Class A / 1 equal mix UT2 - Reach 2 UT3 - Reach 2B UT3 - Reach 2A UT4 - Reach 2 14.5"UT5 - Reach 2 8" 11" 15" 12" 8.5" UT3 - Reach 2B 7" 60% Class A / B equal mix Class B (5-12") 60% Class A / 1 equal mix 60% Class A / B equal mix 60% Class A / B equal mix 60% Class A / B equal mix 60% Class A / B equal mix Riffle Matrix 2'2'7'15'9'14'45' N/ASPACE AS INDICATED ON PLANS SPACE AS INDICATED ON PLANS N/A N/A SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.2August 4, 2020Log Step Not to Scale 3 6.2 POOL(TYP) Rock Drop Not to Scale 2 6.2 BACKFILL EQUAL RIFFLE MIX FROM PROJECT RIFFLE TABLE Arched Angled Irregular ELEVATION POINT VARIES BY STEP ARRANGEMENT SEE PROFILE FOR ELEVATION DOUBLE THALWEG OR VARIABLE THALWEG PLACEMENT THALWEG ON UPSTREAM 1/3 OF ANGLED STEP (SIMILAR TO SINGLE ARM VANE). e.g. SEE LOG STEP DETAIL SECTION A-A' Types of Step Configurations FLOW Section C-C' Rock Step Not to Scale 4 6.2 TOP OF BANK (TYP) TOE OF SLOPE (TYP) A' Profile View Plan View STREAMBED RIFFLE BACKFILL EXTEND FILTER FABRIC 5' MIN. UPSTREAM FLOW SILL ELEVATION PER PROFILE (TYP) FLOW POOL LENGTH PER PROFILE SILL ELEVATION PER PROFILE POOL DEPTH PER PROFILE 12" - 15" DIAMETER HEADER LOG Section A - A' EMBED LOG 5' (MIN.) SILL ELEVATION PER PROFILE (TYP)12" - 15" DIAMETER LOG CHANNEL BOTTOM WIDTH 0° - 15° ANGLE PER FIELD DIRECTION BACKFILL 0'-0.2'PER PLANS ORFIELD DIRECTIONA NONWOVEN FILTER FABRIC POOL ADD ROOT WAD, BRUSH TOE, OR TRANSPLANTS TO LARGER STREAMS AS DIRECTED BY ENGINEER NOTE: ·FOOTER LOG TO BE ADDED IF DROP IS MORE THAN HEADER LOG DIAMETER. 12" - 15" DIAMETER FOOTER LOG 2-4" BOTTOM WIDTH (TYPICAL SECTIONS) NONWOVEN FILTER FABRIC POOL Profile View HEADER BOULDER FOOTER BOULDER NONWOVEN FILTER FABRICPlan View AA' ANCHOR BOULDERS 2' INTO BANK (HEADERS AND FOOTERS), BOTH SIDES FLOW POOL WIDEN BOTTOM WIDTH TO TYPICAL STRUCTURE POOL DIMENSION MAY BE HORSE SHOE SHAPED, ARCHED (SHOWN), ANGLED OR IRREGULAR. CONTRACTOR TO VARY OR SHAPE AS DIRECTED. IN OUTSIDE OF BEND, ANGLED WITH SLOPING ARM IS TYPICALLY REQUIRED. Section A-A'12" (MIN.)BACKFILL EQUAL RIFFLE MIX FROM PROJECT RIFFLE TABLE BACKFILL DEPTH 18" MINIMUM BY 3' LENGTH BASE FLOW THALWEG TO BE 2-4" LOWER THAN ADJACENT AREAS OF ROCK STEP ARCHED DROPIRREGULAR DROPANGLED DROP NOTES: ·DROP TYPE MAY BE VARIED IN THE FIELD BY DESIGNER. IN GENERAL, VARY DROP TYPE OFTEN WITH ROUGHLY EQUAL NUMBERS OF EACH DROP TYPE WITHIN A REACH. ·DETAIL TO BE APPLIED IN CONJUNCTION WITH DETAIL 3/6.1 (CASCADING RIFFLE-POOL SEQUENCE). ·SECTION VIEWS REPRESENT ARCHED ROCK DROP VARIATION. MODIFY SECTIONS AS NEEDED TO ACCOMMODATE OTHER VARIATIONS . ·BOULDER SIZE TABLES PER REACH TO BE ADDED TO 100% PLANS.A'A2-4" BOTTOM WIDTH (TYPICAL SECTIONS) NONWOVEN FILTER FABRIC HEADER BOULDER FOOTER BOULDER ANCHOR BOULDERS 2' INTO BANK (HEADERS AND FOOTERS), BOTH SIDES18" (MIN.)MIDDLE OF ROCK STEP 2-4" LOWER THAN BANKS OF ROCK STEP Section A-A' POOL Profile View BOULDER NONWOVEN FILTER FABRIC BACKFILL DEPTH 12" MINIMUM BY 2' LENGTH BASE FLOW SEE DETAIL 3/6.1 FOR CASCADE CONSTRUCTION BETWEEN ROCK DROPS Rock Slide Not to Scale 1 6.2 Plan View MATERIAL VARIES FROM CLASS I OR II STONE TO BOULDERS TO LARGE ON-SITE STONE IF AVAILABLE - USE LARGEST STONE AVAILABLE NOTES: ·USE AS DIRECTED WITH DETAIL 3/6.1 IN LIEU OF CASCADING RIFFLES WHERE AVERAGE SLOPE EXCEEDS 15-20% (ROCK CASCADE MAY ALSO BE USED FOR THIS SCENARIO). ·MINIMUM SIZE FOR BOULDERS SHALL BE 4' x 2' x 1'. ·VOID SPACES BETWEEN BOULDERS ON SLIDE SHALL BE FILLED WITH SMALLER NATIVE ROCK WHERE AVAILABLE. ·IF NATIVE ROCK IS NOT AVAILABLE, QUARRIED ROCK MAY BE SUBSTITUTED IN THE SAME SIZES. ·ALL SMALLER ROCK SHALL BE HETEROGENEOUS AND WELL MIXED. Profile SLIDE HEIGHT VARIES(3' MAX)DOUBLE STACK BOULDER SLIDE ROCK ATOP ROCK MIX FILL ALL GAPS BETWEEN LARGE BOULDERS SL O P E V A R I E S (4 5 % M A X ) NATIVE ROCK EQUIVALENT TO CLASS I RIPRAP, VOIDS FILLED WITH ONSITE GRAVEL AND SAND (TYP) FILTER FABRIC EXISTING SOIL TERRACE EXISTING SLOPE FOOTER OR LARGE SLOPING HEADER BOULDER TO EXTEND 18" BELOW POOL INVERT OVEREXCAVATE 1-2', BACKFILL WITH WELL-GRADED MIX OF SMALL BOULDERS, COBBLE, GRAVEL AND SAND POOL INVERT PER TYPICAL SECTION OR PROFILE NOTE: ·BOULDER SIZE TABLES PER REACH TO BE ADDED TO 100% PLANS.BANKFULLWIDTH2' MIN2' MIN X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.3August 4, 2020Brush Toe Not to Scale 1 6.3 Vegetated Stone Toe Protection Not to Scale 3 6.3 FLOW A A' Plan View EROSION CONTROL MATTING TOP O F B A N K ( T Y P) TOE O F S L O P E ( T Y P) TOE O F S L O P E ( T Y P) TOP O F B A N K ( T Y P ) DENSELY PACKED WOODY DEBRIS BRUSH MATERIAL TO BE INSTALLED FLUSH WITH BANK TOP OF BANK (BANKFULL) Section A-A' DENSELY PACKED BRUSH, WOODY DEBRIS AND SOIL EROSION CONTROL MATTING BACKFILL TOE OF SLOPE 3' NATIVE SOIL ELEV. 6" BELOW POOL DEPTH ELEV. 6" ABOVE DOWNSTREAM RIFFLE INVERT NOTES: ·OVEREXCAVATE 2-3' BEYOND TOE OF BANK. ·INSTALL A DENSE LAYER OF BRUSH/WOODY DEBRIS, WHICH SHALL CONSIST OF SMALL BRANCHES AND ROOTS COLLECTED ON-SITE AND SOIL TO FILL ANY VOID SPACE. LIGHTLY COMPACT BRUSH/WOODY DEBRIS LAYER. ·BRUSH SHOULD BE ALIGNED SO STEMS ARE ROUGHLY PARALLEL AND IS INSTALLED POINTING SLIGHTLY UPSTREAM. ·INSTALL FILTER FABRIC OVER BRUSH/WOODY DEBRIS. ·INSTALL EARTH BACKFILL OVER BRUSH/WOODY LAYER ACCORDING TO TYPICAL SECTION DIMENSIONS. ·SEED, MULCH AND INSTALL EROSION CONTROL MATTING AND BANK STABILIZATION PER PLANS. FILTER FABRIC (WHERE SPECIFIED BY DESIGNER) WIDTH PER TYPICAL SECTIONS 3-6" PER DESIGNER CHANNEL BOTTOMSection A-A' ON-SITE ALLUVIUM/SOIL BACKFILL CLASS 1/A/B, OR EQUAL SIZE, STONE TOE (TYPICAL) CHANNEL BED A' A EXISTING ERODED BANK WHERE APPLICABLE (IN OTHER SITUATIONS OVEREXCAVATION MAY BE REQUIRED TO PLACE STONE) Plan View FLOW EMBED STONE 1.0' (MIN) BELOW CHANNEL BED Profile View BASE FLOW ELEVATION 0.25-0.5'FLOW MATTING FILL VOIDS WITH ALLUVIUM AND SOIL NOTES: ·APPLY LIVE STAKING AND JUNCUS PLUGS DETAIL 1, SHEET 6.7 ·CONTRACTOR TO USE NATIVE STONE AND MATERIAL WHENEVER AVAILABLE. ·IN POOLS, RUN TO 1' BELOW MAX POOL THALWEG DEPTH AT 1:1 MAX SLOPE. ·AS DIRECTED, USE LARGER OR SMALLER MIX OF ON-SITE OR OFF-SITE MATERIAL FOR STONE TOE AND BACKFILL. ·WHERE SPECIFIED AS BID ALTERNATE, ENGINEER MAY REQUIRE THAT COIR WATTLE/LOG BE USED - INSTALL PER MANUFACTURER RECOMMENDATIONS. FILL BETWEEN TOE AND BANK PER PLAN OR AS SPECIFIED IN FIELD KEY INTO BANK AT UPSTREAM AND DOWNSTREAM LIMITS TO PROTECT AGAINST FLOW CUTTING BEHIND APPLY JUNCUS SEED, TOPDRESS TO PROTECT SEED DISTANCE FROM BASE FLOW TO THALWEG (DEPTH OF STONE TOE) VARIES BASED ON RIFFLE AND POOL DEPTHS CHANNEL BED (THALWEG)1' MIN.BELOWTHALWEGSheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.4August 4, 2020Log J-Hook Not to Scale 4 6.4Yθ SCOUR POOL FLOW Plan View TOE OF SLOPE FILTER FABRIC EXTENDS 5' MIN. Section B-B' Section A-A' A' A B B'HTOP OF BANK OFFSET HEADER LOG 0.25' TO 0.5' UPSTREAM OF FOOTER LOG TOP OF BANK (TYP) TOE OF SLOPE (TYP) FLOW VANE A R M LENG T H (X) SLOPE (S) 6" SALVAGED ONSITE COBBLE/GRAVEL BED MATERIAL HEADER LOG FOOTER LOG HEADER LOG FOOTER LOGNONWOVEN FILTER FABRIC 6" SALVAGED ONSITE COBBLE/GRAVEL BED MATERIAL PLACE HEADER BOULDER TO PREVENT LOG FROM SHIFTING. INVERT ELEVATION PER PROFILE EXCAVATE POOL PER PROFILE PLACE HEADER BOULDERS WITH 1' TO 2' CLEAR SPACE BETWEEN ROCKS EXTE N D 5 ' INTO B A N K BANK TIE IN NOTE: ·MEASURE FROM BANK TIE ALONG BACK OF LOG 1 6.4 Constructed Riffle - Large Stream Not to Scale FLOW TOE OF SLOPE (TYP)RIFFLE BOTTOMWIDTH PERTYPICAL SECTIONSPlan View A A' SEE PROFILE FOR LENGTH OF RIFFLE B B' HEAD OF RIFFLE Profile A-A' Section B-B' TOP OF BANK (TYP) 6" SALVAGED ONSITE COBBLE/GRAVEL BED MATERIAL 6" SALVAGED ONSITE COBBLE/GRAVEL BED MATERIAL RIFFLE INVERT PER PROFILE TOP OF BANK (TYP) HEAD OF RIFFLE ELEVATION POINT PER PROFILE TAIL OF RIFFLE ELEVATION POINT PER PROFILE CR-CR FLOW NOTES: ·IF A RIFFLE ENDS WITH A SILL IT WILL BE SHOWN IN THE PLANS. REFER TO LOG/ROCK SILL DETAIL FOR THIS FINAL STRUCTURE. ·RIFFLE MATERIAL SHALL BE A WELL-GRADED MIXTURE OF FINE GRAVELS TO LARGE COBBLE WITH A D50 = 6 INCHES. NONWOVEN FILTER FABRIC NONWOVEN FILTER FABRIC Jazz Riffle Structure Not to Scale Plan View Profile View A-A' TOE OF SLOPE Log Section B-B' TOP OF BANK FLOWFLOWA' B FLOW B' NOTES: ·STRUCTURES SHOULD VARY IN SIZE AND TYPE WITHIN EACH RIFFLE. ·ROCK MAY BE SUBSTITUTED FOR LOGS AT ENGINEER'S DISCRETION. ·IF A RIFFLE ENDS WITH A SILL IT WILL BE SHOWN IN THE PLANS. REFER TO LOG/ROCK SILL DETAIL FOR THIS FINAL STRUCTURE. ·RIFFLE MATERIAL SHALL BE A WELL-GRADED MIXTURE OF FINE GRAVELS TO LARGE COBBLE WITH A D50 = 6 INCHES.TOE OF SLOPETOP OF BANKA3 6.4 TAIL OF RIFFLE ELEVATION POINT PER PROFILE ROCK VANES MAY BE USED IN PLACE OF LOGS AT ENGINEER'S DISCRETION BURY INTO BANK 3' MIN. (TYP) BANKFULL HEAD OF RIFFLE ELEVATION POINT PER PROFILE 6" SALVAGED ONSITE COBBLE/GRAVEL BED MATERIAL LOG STRUCTURE EXPOSED UNTIL CENTER OF CHANNEL CR-JZ NONWOVEN FILTER FABRIC NONWOVEN FILTER FABRIC SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONHFOOTER LOG INVERT ELEVATION PER PROFILE HEADER LOG Y EXCAVATE POOL PER PROFILE θ 1' 1' CLASS A STONE BACKFILL (ON-SITE NATIVE MATERIAL OR NO. 57 STONE) NONWOVEN FILTER FABRIC HEADER LOG CLASS B STONE EXTEND FILTER FABRIC 5' MIN. UPSTREAM FOOTER LOG STABILIZE VANE WITH ONE BOULDER ON EACH SIDE X5'Log Vane Not to Scale 2 6.4 X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.5August 4, 2020NCG01 GROUND STABILIZATION AND MATERIALS HANDLING EFFECTIVE: 04/01/19 GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH THE NCG01 CONSTRUCTION GENERAL PERMIT Implementing the details and specifications on this plan sheet will result in the construction activity being considered compliant with the Ground Stabilization and Materials Handling sections of the NCG01 Construction General Permit (Sections E and F, respectively). The permittee shall comply with the Erosion and Sediment Control plan approved by the delegated authority having jurisdiction. All details and specifications shown on this sheet may not apply depending on site conditions and the delegated authority having jurisdiction. GROUND STABILIZATION SPECIFICATION Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the techniques in the table below: POLYACRYLAMIDES (PAMS) AND FLOCCULANTS 1.Select flocculants that are appropriate for the soils being exposed during construction, selecting from the NC DWR List of Approved PAMS/Flocculants. 2.Apply flocculants at or before the inlets to Erosion and Sediment Control Measures. 3.Apply flocculants at the concentrations specified in the NC DWR List of Approved PAMS/Flocculants and in accordance with the manufacturer's instructions. 4.Provide ponding area for containment of treated Stormwater before discharging offsite. 5.Store flocculants in leak-proof containers that are kept under storm-resistant cover or surrounded by secondary containment structures. HAZARDOUS AND TOXIC WASTE 1.Create designated hazardous waste collection areas on-site. 2.Place hazardous waste containers under cover or in secondary containment. 3.Do not store hazardous chemicals, drums or bagged materials directly on the ground. EQUIPMENT AND VEHICLE MAINTENANCE 1.Maintain vehicles and equipment to prevent discharge of fluids. 2.Provide drip pans under any stored equipment. 3.Identify leaks and repair as soon as feasible, or remove leaking equipment from the project. 4.Collect all spent fluids, store in separate containers and properly dispose as hazardous waste (recycle when possible). 5.Remove leaking vehicles and construction equipment from service until the problem has been corrected. 6.Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products to a recycling or disposal center that handles these materials. LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE 1.Never bury or burn waste. Place litter and debris in approved waste containers. 2.Provide a sufficient number and size of waste containers (e.g dumpster, trash receptacle) on site to contain construction and domestic wastes. 3.Locate waste containers at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 4.Locate waste containers on areas that do not receive substantial amounts of runoff from upland areas and does not drain directly to a storm drain, stream or wetland. 5.Cover waste containers at the end of each workday and before storm events or provide secondary containment. Repair or replace damaged waste containers. 6.Anchor all lightweight items in waste containers during times of high winds. 7.Empty waste containers as needed to prevent overflow. Clean up immediately if containers overflow. 8.Dispose waste off-site at an approved disposal facility. 9.On business days, clean up and dispose of waste in designated waste containers. PAINT AND OTHER LIQUID WASTE 1.Do not dump paint and other liquid waste into storm drains, streams or wetlands. 2.Locate paint washouts at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 3.Contain liquid wastes in a controlled area. 4.Containment must be labeled, sized and placed appropriately for the needs of site. 5.Prevent the discharge of soaps, solvents, detergents and other liquid wastes from construction sites. PORTABLE TOILETS 1.Install portable toilets on level ground, at least 50 feet away from storm drains, streams or wetlands unless there is no alternative reasonably available. If 50 foot offset is not attainable, provide relocation of portable toilet behind silt fence or place on a gravel pad and surround with sand bags. 2.Provide staking or anchoring of portable toilets during periods of high winds or in high foot traffic areas. 3.Monitor portable toilets for leaking and properly dispose of any leaked material. Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace with properly operating unit. HERBICIDES, PESTICIDES AND RODENTICIDES 1.Store and apply herbicides, pesticides and rodenticides in accordance with label restrictions. 2.Store herbicides, pesticides and rodenticides in their original containers with the label, which lists directions for use, ingredients and first aid steps in case of accidental poisoning. 3.Do not store herbicides, pesticides and rodenticides in areas where flooding is possible or where they may spill or leak into wells, stormwater drains, ground water or surface water. If a spill occurs, clean area immediately. 4.Do not stockpile these materials onsite. CONCRETE WASHOUTS 1.Do not discharge concrete or cement slurry from the site. 2.Dispose of, or recycle settled, hardened concrete residue in accordance with local and state solid waste regulations and at an approved facility. 3.Manage washout from mortar mixers in accordance with the above item and in addition place the mixer and associated materials on impervious barrier and within lot perimeter silt fence. 4.Install temporary concrete washouts per local requirements, where applicable. If an alternate method or product is to be used, contact your approval authority for review and approval. If local standard details are not available, use one of the two types of temporary concrete washouts provided on this detail. 5.Do not use concrete washouts for dewatering or storing defective curb or sidewalk sections. Stormwater accumulated within the washout may not be pumped into or discharged to the storm drain system or receiving surface waters. Liquid waste must be pumped out and removed from project. 6.Locate washouts at least 50 feet from storm drain inlets and surface waters unless it can be shown that no other alternatives are reasonably available. At a minimum, install protection of storm drain inlet(s) closest to the washout which could receive spills or overflow. 7.Locate washouts in an easily accessible area, on level ground and install a stone entrance pad in front of the washout. Additional controls may be required by the approving authority. 8.Install at least one sign directing concrete trucks to the washout within the project limits. Post signage on the washout itself to identify this location. 9.Remove leavings from the washout when at approximately 75% capacity to limit overflow events. Replace the tarp, sand bags or other temporary structural components when no longer functional. When utilizing alternative or proprietary products, follow manufacturer's instructions. 10.At the completion of the concrete work, remove remaining leavings and dispose of in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance caused by removal of washout. EARTHEN STOCKPILE MANAGEMENT 1.Show stockpile locations on plans. Locate earthen-material stockpile areas at least 50 feet away from storm drain inlets, sediment basins, perimeter sediment controls and surface waters unless it can be shown no other alternatives are reasonably available. 2.Protect stockpile with silt fence installed along toe of slope with a minimum offset of five feet from the toe of stockpile. 3.Provide stable stone access point when feasible. 4.Stabilize stockpile within the timeframes provided on this sheet and in accordance with the approved plan and any additional requirements. Soil stabilization is defined as vegetative, physical or chemical coverage techniques that will restrain accelerated erosion on disturbed soils for temporary or permanent control needs. A A BELOW GRADE WASHOUT STRUCTURE 1:1 SIDE SLOPE (TYP.) 10 MILPLASTICLINING 3'-0"MIN.& X'MAX.SECTION A-A NOT TO SCALE ABOVE GRADE WASHOUT STRUCTURE NOT TO SCALE PLAN SECTION B-B HIGHCOHESIVE &LOW FILTRATION SOIL BERM 8"6" 2' HIGHCOHESIVE & LOW FILTRATIONSOIL BERM1:1 SIDE SLOPE (TYP.) 10 MIL PLASTIC LINING B B 3'-0"MIN.& X'MAX.A SANDBAGS (TYP.) OR STAPLES SANDBAGS (TYP.) OR STAPLES SANDBAGS (TYP.) OR STAPLES SANDBAGS (TYP.) OR STAPLES NOTES: 1. ACTUAL LOCATION DETERMINED IN FIELD 2. THE CONCRETE WASHOUT STRUCTURES SHALL BE MAINTAINED WHEN THE LIQUID AND/OR SOLID REACHES 75% OF THE STRUCTURES CAPACITY. 3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARY MARKED WITH SIGNAGE NOTING DEVICE. NOTES: 1. ACTUAL LOCATION DETERMINED IN FIELD 2. THE CONCRETE WASHOUT STRUCTURES SHALL BE MAINTAINED WHEN THE LIQUID AND/OR SOLID REACHES 75% OF THE STRUCTURES CAPACITY TO PROVIDE ADEQUATE HOLDING CAPACITY WITH A MINIMUM 12 INCHES OF FREEBOARD. 3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARY MARKED WITH SIGNAGE NOTING DEVICE. ONSITE CONCRETE WASHOUT STRUCTURE WITH LINER CONCRETE WASHOUT CONCRETE WASHOUT PLAN CLEARLY MARKED SIGNAGE NOTING DEVICE (18"X24" MIN.) CLEARLY MARKED SIGNAGE NOTING DEVICE (18"X24" MIN.) SILT FENCE 10'MIN10' MIN SECTION E: GROUND STABILIZATION Required Ground Stabilization Timeframes Note: After the permanent cessation of construction activities, any areas with temporary ground stabilization shall be converted to permanent ground stabilization as soon as practicable but in no case longer than 90 calendar days after the last land disturbing activity. Temporary ground stabilization shall be maintained in a manner to render the surface stable against accelerated erosion until permanent ground stabilization is achieved. Site Area Description Timeframe variations -7 days for perimeter dikes, swales, ditches, perimeter slopes and HQW Zones -10 days for Falls Lake Watershed unless there is zero slope Stabilize within this many calendar days after ceasing land disturbance 7 7 7 14 None None (a)Perimeter dikes, swales, ditches, and perimeter slopes (b)High Quality Water (HQW) Zones (c)Slopes steeper than 3:1 If slopes are 10' or less in length and are not steeper than 2:1, 14 days are allowed (d)Slopes 3:1 to 4:1 (e)Areas with slopes flatter than 4:1 14 -7 days for slopes greater than 50' in length and with slopes steeper than 4:1 -7 days for perimeter dikes, swales, ditches, perimeter slopes and HQW Zones -10 days for Falls Lake Watershed SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.6August 4, 2020NCG01 SELF-INSPECTION, RECORDKEEPING AND REPORTING EFFECTIVE: 04/01/19 PART III SELF-INSPECTION, RECORDKEEPING AND REPORTING SECTION A: SELF-INSPECTION Self-inspections are required during normal business hours in accordance with the table below. When adverse weather or site conditions would cause the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next business day on which it is safe to perform the inspection. In addition, when a storm event of equal to or greater than 1.0 inch occurs outside of normal business hours, the self-inspection shall be performed upon the commencement of the next business day. Any time when inspections were delayed shall be noted in the Inspection Record. NOTE: The rain inspection resets the required 7 calendar day inspection requirement. PART III SELF-INSPECTION, RECORDKEEPING AND REPORTING SECTION B: RECORDKEEPING 1.E&SC Plan Documentation The approved E&SC plan as well as any approved deviation shall be kept on the site. The approved E&SC plan must be kept up-to-date throughout the coverage under this permit. The following items pertaining to the E&SC plan shall be documented in the manner described: 2. Additional Documentation In addition to the E&SC Plan documents above, the following items shall be kept on the site and available for agency inspectors at all times during normal business hours, unless the Division provides a site-specific exemption based on unique site conditions that make this requirement not practical: (a)This general permit as well as the certificate of coverage, after it is received. (b)Records of inspections made during the previous 30 days. The permittee shall record the required observations on the Inspection Record Form provided by the Division or a similar inspection form that includes all the required elements. Use of electronically-available records in lieu of the required paper copies will be allowed if shown to provide equal access and utility as the hard-copy records. (c)All data used to complete the Notice of Intent and older inspection records shall be maintained for a period of three years after project completion and made available upon request. [40 CFR 122.41] PART III SELF-INSPECTION, RECORDKEEPING AND REPORTING SECTION C: REPORTING 1.Occurrences that must be reported Permittees shall report the following occurrences: (a)Visible sediment deposition in a stream or wetland. (b)Oil spills if: ·They are 25 gallons or more, ·They are less than 25 gallons but cannot be cleaned up within 24 hours, ·They cause sheen on surface waters (regardless of volume), or ·They are within 100 feet of surface waters (regardless of volume). (a)Releases of hazardous substances in excess of reportable quantities under Section 311 of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA (Ref: 40 CFR 302.4) or G.S. 143-215.85. (b)Anticipated bypasses and unanticipated bypasses. (c)Noncompliance with the conditions of this permit that may endanger health or the environment. 2.Reporting Timeframes and Other Requirements After a permittee becomes aware of an occurrence that must be reported, he shall contact the appropriate Division regional office within the timeframes and in accordance with the other requirements listed below. Occurrences outside normal business hours may also be reported to the Division's Emergency Response personnel at (800) 662-7956, (800) 858-0368 or (919) 733-3300.SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.7August 4, 2020TOP OF BANK TRANSPLANTED SOD AND ROOTMASS TOP OF BANK TOE OF SLOPE NOTES: ·PREPARE THE BANK WHERE THE SOD MAT WILL BE TRANSPLANTED BY RAKING & FERTILIZING. ·EXCAVATE TRANSPLANT SOD MATS WITH A WIDE BUCKET AND AS MUCH ADDITIONAL SOIL MATERIAL AS POSSIBLE. ·PLACE TRANSPLANT ON THE BANK TO BE STABILIZED. ·SECURE WITH SOD STAPLES. ·FILL IN ANY HOLES AROUND THE TRANSPLANT AND COMPACT. ·ANY LOOSE SOIL LEFT IN THE STREAM SHOULD BE REMOVED. ·PLACE MULTIPLE TRANSPLANTS CLOSE TOGETHER SUCH THAT THEY TOUCH. Section View Riffle Installation Plan View Riffle Installation CONSTRUCTED RIFFLE Transplanted Sod Mats Not to Scale FLOW TRANSPLANTED SOD AND ROOTMASS 4 6.7 Live Staking & Juncus Plugs Not to Scale Plan View 2' TO 3' LIVE STAKETAPERED AT BOTTOM1/2" TO 2" DIAMETER Live Stake Detail NOTES: ·LIVESTAKES TO BE PLANTED IN RIPARIAN CORRIDOR PLANTING ZONES DESIGNATED ON PLANTING PLAN. ·PLUGS TO BE PLANTED ON RESTORATION REACHES ONLY UNLESS DIRECTED OTHERWISE. ·IN ENHANCEMENT II AREAS, LIVESTAKES ONE OR BOTH BANKS ONLY AS DIRECTED BY DESIGNER. ·LIVESTAKE NATURALIZED CROSSINGS ALONG EXISTING DIRT ROAD SOUTH OF EAST BUFFALO (PAVED ROAD). OTHERWISE, NO LIVESTAKING IN PRESERVATION AREAS. 2 ROWS AT 4' STAGGERED SPACING 1 ROW AT 3' SPACING 3' OUTSIDE TOP OF BANK BANKFULLTOE OF SLOPE JUNCUS PLUG (TYP) Section View LIVE STAKE (TYP)3' TOE OF SLOPE Containerized Planting Not to Scale 2x CONTAINER WIDTH1.5x CONTAINERDEPTH2' TYPICAL 2 6.7 1 6.7 Bare Root Planting Not to Scale 1 2 3 4 5 6 INSERT THE DIBBLE, OR SHOVEL, STRAIGHT DOWN INTO THE SOIL TO THE FULL DEPTH OF THE BLADE AND PULL BACK ON THE HANDLE TO OPEN THE PLANTING HOLE. (DO NOT ROCK THE SHOVEL BACK AND FORTH AS THIS CAUSES SOIL IN THE PLANTING HOLE TO BE COMPACTED, INHIBITING ROOT GROWTH. REMOVE THE DIBBLE, OR SHOVEL, AND PUSH THE SEEDLING ROOTS DEEP INTO THE PLANTING HOLE. PULL THE SEEDLING BACK UP TO THE CORRECT PLANTING DEPTH (THE ROOT COLLAR SHOULD BE 1 TO 3 INCHES BELOW THE SOIL SURFACE). GENTLY SHAKE THE SEEDLING TO ALLOW THE ROOTS TO STRAIGHTEN OUT. DO NOT TWIST OR SPIN THE SEEDLING OR LEAVE THE ROOTS J-ROOTED. INSERT THE DIBBLE, OR SHOVEL, SEVERAL INCHES IN FRONT OF THE SEEDLING AND PUSH THE BLADE HALFWAY INTO THE SOIL. TWIST AND PUSH THE HANDLE FORWARD TO CLOSE THE TOP OF THE SLIT TO HOLD THE SEEDLING IN PLACE. PUSH THE DIBBLE, OR SHOVEL, DOWN TO THE FULL DEPTH OF THE BLADE. PULL BACK ON THE HANDLE TO CLOSE THE BOTTOM OF THE PLANTING HOLD. THEN PUSH FORWARD TO CLOSE THE TOP, ELIMINATING AIR POCKETS AROUND THE ROOT. REMOVE THE DIBBLE, OR SHOVEL, AND CLOSE AND FIRM UP THE OPENING WITH YOUR HEEL. BE CAREFUL TO AVOID DAMAGING THE SEEDLING. NOTES: 1.ALL SOILS WITHIN THE BUFFER PLANTING AREA SHALL BE DISKED, AS REQUIRED, PRIOR TO PLANTING. 2.ALL PLANTS SHALL BE PROPERLY HANDLED PRIOR TO INSTALLATION TO INSURE SURVIVAL. DIBBLE BAR PLANTING BAR SHALL HAVE A BLADE WITH A TRIANGULAR CROSS-SECTION, AND SHALL BE 12 INCHES LONG, 4 INCHES WIDE AND 1 INCH THICK AT CENTER. ROOTING PRUNING ALL ROOTS SHALL BE PRUNED TO AN APPORIATE LENGTH TO PREVENT J-ROOTING. RESTORED CHANNEL BANKFULL BUFFER WIDTH VARIES SPACING PER PLANTING PLAN Section View 3 6.7 SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONRUBBER MALLET HAMMER LIVE STAKES WITH A RUBBER MALLET OR COMPARABLE HAMMER THAT WILL PREVENT LIVE STAKE CRACKING OR DAMAGE DURING INSTALLATION CUT LIVE STAKE WITH A 2-3" TAPER AT THE BOTTOM, ENSURING GROWTH IS ANGLED AWAY FROM THE TAPERED EDGE INSTALL LIVE STAKE TO A MINIMUM DEPTH OF 1' LIVE STAKES TO BE INSTALLED DURING DORMANT SEASON (TYP) IF LIVE STAKE IS SEVERELY DAMAGED DURING INSTALLATION, REMOVE AND REPLACE WITH A NEW LIVE STAKE X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.8August 4, 20203 6.8 6' MAX. WITH WIRE ORANGE SAFTY FENCE "T" OR "U" POST DRIVEN MINIMUM OF 18" INTO GROUND ATTACH SAFETY FENCE TO METAL POSTS USING METAL WIRE TIES 4' MIN.MATERIAL SPECIFICATIONS PHYSICAL PROPERTY TESTS REQUIREMENTS MATERIAL N/A POLYETHYLENE RECOMENDED COLOR N/A "INTERNATIONAL ORANGE" TENSILE YIELD ASTM D638 AVE. 2000 LBS. PER 4' WIDE ULTIMATE TENSILE STRENGTH ASTM D638 AVE. 2900 LBS. PER 4' WIDE ELONGATION AT BREAK (%)ASTM D638 GREATER THAN 1000% CHEMICAL RESISTANCE N/A INERT TO MOST CHEMICALS AND ACIDS 18" MIN.Safety Fence Not to Scale Soil Road Naturalization Not to Scale 4 6.8 WATER DIVERSION CHANNEL MUD MATS SUPPORT LOG 12" Ø MIN.FILTER FABRIC CLASS B STONE 10 5' DIM Temporary Stream Crossing - Mud Mat Not to Scale 2 6.8 Straw Wattles Not to Scale 1 6.8 SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION10:1 (MI N ) EXISTING GROUND GULLEYING OF SOIL ROAD PROPOSED GROUND - BUILD UP FOR DRAINAGE AT OUTLETS UPSTREAM OF BUILT UP SECTIONS, INSTALL BRUSH OR OTHER NATIVE MATERIALS TO DISPERSE FLOW ACROSS HILLSIDE Section View - Road Grading to Route Runoff into Buffer FL O W 3:1 ( M I N ) EXISTING GROUND GULLEYING OF SOIL ROAD PROPOSED GROUND - ADD IRREGULARITY IN GRADING, AND/OR WITH BOULDERS AND FELL TREES TO DETER USE AT OUTLETS UPSTREAM OF BUILT UP SECTIONS, INSTALL BRUSH OR OTHER NATIVE MATERIALS TO DISPERSE FLOW ACROSS HILLSIDE FL O W Section View - Road Demo to Prevent Use NOTES: PRIMARY SOIL ROAD DECOMMISSIONING (SEE SHEET 5.X) ·OBSTRUCT VEHICULAR PASSAGE THROUGH INTERMITTENT OBSTRUCTION OF THE ROAD WITH BOULDERS, TREES OR 3:1 MIN. BERMS/GRADING TO REDUCE THE PASSABLE WIDTH FOR THE PREVENTION OF TRUCKS AND 4-WHEELER TRAFFIC. ·REGRADING ROADS AT INTERVALS OF TWO PER 300' TO DISPERSE RUNOFF AND SHED WATER BEFORE FLOW IS CONCENTRATED, AND MORE FREQUENTLY WHERE THE FACTORS OF CONTRIBUTING DRAINAGE AREA, GRADIENT, AND EXISTING ROAD CONDITIONS WARRANT. ·PLANT A MINIMUM OF 10 TREES EVERY 300' ·MAJOR GULLIES ALONG ROADS SHALL BE GRADED OUT OVER AT LEAST 30% OF THEIR LENGTH, IT IS ACCEPTABLE TO LEAVE HUMMOCKY TOPOGRAPHY. ·WHERE ROAD IS SUNK INTO LANDSCAPE, CUT SWALES EVERY 200-400' TO CREEK TO OUTLET UPSLOPE RUNOFF. INSTALL BRUSH AND STONE CHECK DAMS TO REDUCE WATER VELOCITIES AND TRAP SEDIMENT FROM UPSLOPE. SECONDARY SOIL ROAD DECOMMISSIONING (SEE SHEET 5.X) ·ALONG THE UPPER ROAD, NEAR THE STREAM ORIGINS OF UT4 & UT4B, TREAT THE APPROACHES TO THESE UPPER CROSSINGS USING THE ROAD GRADING TO ROUTE RUNOFF INTO BUFFER SECTION AT THE SAME FREQUENCY AS FOR PRIMARY ROAD DECOMISSIONING. ·APPLY DETAIL IN OTHER LOCATIONS AS NEEDED TO ENSURE THAT WATER FLOWS THROUGH BUFFER INSTEAD OF ALONG ROAD. ·ALONG ROADS SITUATED ON RIDGELINES, OBSTRUCTIONS WILL BE ESTABLISHED AND TREES PLANTED AT A FREQUENCY OF ONE OBSTRUCTION AND 10 TREES PER 300'. EXISTING GROUND ROAD SUNK BELOW GRADE CUT SWALE THROUGH EMBANKMENT TO OUTLET WATER OFF CONFINED ROAD INTO CREEK INSTALL CHECK DAMS TO REDUCE WATER VELOCITIES, LIVESTAKE SWALEFL O W Section View - Road Sunk Below Adjacent Grade CREEK MAINTENANCE NOTES: ·ALL TEMPORARY STREAM CROSSINGS SHOULD BE INSPECTED AT LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. ·IF EXCESSIVE SEDIMENT IS BEING TRACKED ON TOP OF MATS THEN REMOVE WITH SHOVEL AND DISPOSE OF PROPERLY. ·TERRACE SLOPES ENTERING AND EXITING FROM CROSSINGS MUST BE WELL MAINTAINED. DIVERT SURFACE RUNOFF AWAY FROM CROSSINGS, APPLY WATTLES AT THE END OF EACH DAY WHEN RAIN IS ANTICIPATED, APPLY SURFACE STONE AS NECESSARY. INSTALLATION NOTES: ·CONSTRUCT STREAM CROSSING WHEN FLOW IS AT OR BELOW NORMAL BASEFLOW. ·BRIDGE MATS SHALL BE PLACED FROM ABOVE RATHER THAN DRAGGED INTO PLACE. ·MINIMIZE CLEARING AND EXCAVATION OF STREAMBANKS. DO NOT EXCAVATE CHANNEL BOTTOM. ·INSTALL STREAM CROSSING PERPENDICULAR TO THE FLOW. ·MAINTAIN CROSSING SO THAT RUNOFF IN THE CONSTRUCTION ROAD DOES NOT ENTER CHANNEL. SMALL DIVERSION CHANNELS, ADDITIONAL ROCK, OR STRAW/COIR WATTLES MAY BE REQUIRED. INSTALL AS DIRECTED. ·STABILIZE AN ACCESS RAMP OF CLASS B STONE TO THE EDGE OF THE MUD MAT. ·CONTRACTOR SHALL DETERMINE APPROPRIATE RAMP ANGLE ACCORDING TO EQUIPMENT USED. ·PLUG GAPS BETWEEN MATS WITH FILTER FABRIC TO PREVENT LOSS OF SOIL THROUGH GAPS. ·ADDRESS STEEP TRANSITIONS TO THE CROSSING THAT PRESENT AN EROSION OR SEDIMENTATION RISK WITH APPROPRIATE COUNTERMEASURES SUCH AS STONE OR END OF DAY COVER OR SEDIMENT BARRIER APPLICATIONS.2"TRENCH 24" MIN24" MINDOW N S L O P E WOODEN STAKE WITH WATTLE ANCHORED TO THE TOP Profile View Section View - Ditch Application NOTE: 1.COIR LOGS CAN BE USED FOR BANK TOE ESTABLISHMENT OR IN A SIMILAR FASHION TO ROCK/LOG SPURS, USING 1" X 1" X 36" HARDWOOD STAKES. INSTALLATION SHALL BE DIRECTED BY ENGINEER. MAINTENANCE NOTES: 1.ALL WATTLES/LOGS SHOULD BE INSPECTED AT LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. 2.WATTLES/LOGS COLLAPSING, TEARING, WATER BYPASSING THE WATTLES/LOGS, OR OTHER FAILURES SHOULD BE REPAIRED WITHIN 24 HOURS. 3.SEDIMENT TRAPPED BEHIND ROCK SILT CHECK DAMS SHOULD BE CAREFULLY REMOVED ONCE DEPTH REACHES 6". TOP OF EROSION CONTROL MATTING SLOPE SURFACE DOW N S L O P E SLOPE SURFACE WOOD STAKE (TYP) 12' DIA. STRAW WATTLE DITCH OR SLOPE GRADETRENCH IN WATTLE ON BARE SOIL COMPACTED SOIL ALONG FRONT AND BACK (TYP) X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.9August 4, 2020Erosion Control Matting Not to Scale Section View ECOSTAKE (TYP) EROSION CONTROL MATTING (TYP) Plan View ECO STAKE (TYP)TOP OF BANK TOE OF SLOPE TOE OF SLOPE 11"1.25"0.4"Eco Stake TOP OF BANK 3' M A X . SPAC I N G 6" MIN. OVERLAP IN DOWNSTREAM DIRECTION AT MAT ENDS TOE STAKE (TYP) 0.6" NOTES: ·ALL EROSION CONTROL MATTING SHOULD BE INSPECTED AT LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. ·ANY MATTING FAILURES SHOULD BE REPAIRED WITHIN 24 HOURS. ·TENTING (EROSION OCCURRING UNDERNEATH INSTALLED MATTING) WILL REQUIRE PEELING BACK MATTING, REPAIRING ANY RILLS, AND REAPPLYING THE MATTING. ·USE 780 g/m2 DENSITY COIR MATTING.18"4"2"Toe Stake 2 6.9 8"4" Temporary Silt Fence Not to Scale NOTES: ·USE WIRE A MINIUM OF 32" IN WIDTH AND WITH A MINIMUM OF 6 LINES OF WIRES WITH 12" STAY SPACING. ·USE SILT FENCE A MINIMUM OF 36" IN WIDTH AND FASTEN ADEQUATELY TO THE WIRES AS DIRECTED BY THE ENGINEER. ·PROVIDE 5' STEEL POST OF THE SELF-FASTENER ANGLE STEEL TYPE. ANGLE STEEL TYPE. WIRE TOP AND BOTTOM STRAND SHALL BE 10 GAUGE MIN. MIDDLE AND VERTICAL WIRES SHALL BE 12 1 2 GAGE MIN. 8' MAX. WITH WIRE (6' MAX. WITHOUT WIRE) SILT FENCE EXISTING GROUND SILT FENCE COMPACTED FILL STEEL POST2'-0" DEPTHEXTEND FABRIC INTO TRENCH 3 6.9 IMPERVIOUS DIKE (SEE INSET "B") INTAKE HOSE PUMP DISCHARGE HOSE IMPERVIOUS DIKE (SEE INSET "B") 10' X 5' STABILIZED OUTLET USING CLASS B RIPRAP AND NCDOT TYPE 2 FILTER FABRIC. (SEE INSET "C") INTAKE HOSE DEWATERING PUMP DISCHARGE HOSE DEWATERING BAG (SEE INSET "A") SAND BAG (24" X 12" X 6") OR STONE.IMPERVIOUS SHEETING FLOW FLEXIBLE DISCHARGE HOSE FROM PUMP AROUND PUMP HELD IN PLACE WITH SAND BAGS AS NEEDED. 10' MIN. STABILIZED OUTLET USING CLASS B RIPRAP TRENCHED INTO EXISTING GROUND A MINIMUM OF 6". SIZE AND LOCATION TO BE DETERMINED IN THE FIELD BY THE ENGINEER. FILTER FABRIC Inset "C" Stabilized Outlet Plan View Inset "B" Impervious Dike EXISTING TERRAIN DEWATERING BAG STREAM BED FILTER FABRIC 8" of CLASS B RIPRAP 15' to 20'10'15' BAG PLACED ON AGGREGATE HIGH STRENGTH DOUBLE STITCHED "J" TYPE SEAMS. SEWN IN SPOUT HIGH STRENGTH STRAPPING FOR HOLDING HOSE IN PLACE. FLEXIBLE DISCHARGE HOSE WATER FLOW FROM PUMP Inset "A" Dewatering Bag ACTIVE WORK AREA DEWATERING BAG Pump Around System Not to Scale 4 6.950'12'PUBLIC ROADCLASS A STONE 8" MIN. DEPTH NOTES: ·PROVIDE TURNING RADIUS SUFFICIENT TO ACCOMMODATE LARGE TRUCKS. ·LOCATE CONSTRUCTION ENTRANCE AT ALL POINTS OF INGRESS AND EGRESS UNTIL SITE IS STABILIZED. PROVIDE FREQUENT CHECKS OF THE DEVICE AND TIMELY MAINTENANCE. ·MUST BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR DIRECT FLOW OF MUD ONTO STREETS. PERIODIC TOP DRESSING WITH STONE WILL BE NECESSARY. ·ANY MATERIAL TRACKED ONTO THE ROADWAY MUST BE CLEANED IMMEDIATELY. ·USE CLASS A STONE OR OTHER COARSE AGGREGATE APPROVED BY THE ENGINEER. ·PLACE FILTER FABRIC BENEATH STONE. Construction Entrance Not to Scale 1 6.9 FLOW PUMP-AROUND SEQUENCE: 1.IMPLEMENT PUMP-AROUND WHERE REQUIRED BY THE PLANS AND SPECIFICATIONS OR AS DIRECTED BY THE DESIGNER. 2.IDENTIFY THE EXPECTED ACTIVE WORK AREA OF THE STREAM FOR EACH WORK DAY. THE CONTRACTOR SHALL DISTURB ONLY AS MUCH CHANNEL AS CAN BE STABILIZED WITH SEEDING, MULCH, AND EROSION CONTROL MATTING BY THE END OF EACH WORK DAY. STREAM WORK SHOULD NOT BE PERFORMED, AND PUMP-AROUND SHOULD NOT BE IMPLEMENTED, IF STREAM FLOW EXCEEDS PUMP CAPACITY. 3.MOBILIZE PUMP-AROUND EQUIPMENT TO THE ACTIVE WORK AREA. POSITION PUMP INTAKE JUST UPSTREAM OF THE ACTIVE WORK AREA AND POSITION DISCHARGE HOSE DOWNSTREAM OF THE ACTIVE WORK AREA. STABILIZE OUTLET AREA OF DISCHARGE HOSE AS SHOWN IN DETAIL. PUMP AND HOSES MUST HAVE SUFFICIENT CAPACITY TO HANDLE TYPICAL BASE FLOW CONDITIONS IN THE RESPECTIVE STREAMS, OR ANY CONDITION UNDER WHICH THE CONTRACTOR DESIRES TO CONTINUE WORK. 4.INSTALL IMPERVIOUS DIKES DOWNSTREAM OF THE INTAKE HOSE AND UPSTREAM OF THE DISCHARGE HOSE. ENSURE NO WATER BYPASSES DIKES AND ACTIVE WORK AREA IS ISOLATED FROM THE FLOWING STREAM. 5.START PUMP AND BEGIN PUMPING AROUND IMMEDIATELY AFTER IMPERVIOUS DIKE INSTALLATION. MONITOR PUMP AND WATER LEVELS AT THE UPSTREAM IMPERVIOUS DIKE THROUGHOUT THE DAY. ADJUST DIKE OR PUMP SIZE AS NEEDED TO ENSURE THAT ALL STREAM FLOW BYPASSES THE ACTIVE WORK AREA. 6.DE-WATER THE ACTIVE WORK AREA BY POSITIONING A SEPARATE PUMP NEAR THE DOWNSTREAM END OF THE ACTIVE WORK AREA. WATER PUMPED FORM THE ACTIVE WORK AREA SHOULD PASS THOROUGH A DE-WATERING BAG BEFORE DISCHARGING TO THE STREAM. SEE DETAIL AND SPECIFICATIONS FOR PROPER DE-WATERING BAG TYPE AND INSTALLATION. THE ACTIVE WORK AREA SHOULD BE DE-WATERED WHENEVER A SUFFICIENT AMOUNT OF WATER ACCUMULATES IN THE ACTIVE WORK ZONE TO IMPEDE CONSTRUCTION PROGRESS. 7.WITH FLOW DIVERTED, HARVEST COBBLE AND GRAVEL MATERIALS FROM THE BED OF THE DE-WATERED CHANNEL FOR RE-USE IN CONSTRUCTED RIFFLES AND OTHER IN-STREAM STRUCTURES. 8.COMPLETE ALL STREAM GRADING AND IN-STREAM STRUCTURES WITHIN THE ACTIVE WORK AREA. 9.WHEN STREAM WORK WITHIN THE ACTIVE WORK AREA IS COMPLETE, FULLY STABILIZE THE NEWLY CONSTRUCTED CHANNEL BEFORE SHUTTING DOWN THE PUMP-AROUND SYSTEM. STABILIZATION CONSISTS OF SEEDING, MULCHING, AND INSTALLING EROSION CONTROL MATTING ALONG GRADED BANKS AS INDICATED IN THE DETAILS. 10.ONCE THE ACTIVE WORK AREA IS STABILIZED, TURN OFF PUMPS AND REMOVE IMPERVIOUS DIKES. MOBILIZE THE SYSTEM TO THE NEXT ACTIVE WORK AREA.SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONMAINTENANCE NOTES: ·ALL EROSION CONTROL MATTING SHOULD BE INSPECTED AT LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. ·ANY MATTING FAILURES SHOULD BE REPAIRED WITHIN 24 HOURS. ·TENTING (EROSION OCCURRING UNDERNEATH INSTALLED MATTING) WILL REQUIRE PEELING BACK MATTING, REPAIRING ANY RILLS, AND REAPPLYING THE MATTING. MAINTENANCE NOTES: ·ALL SILT FENCE SHOULD BE INSPECTED AT LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. ·TEARS IN THE FENCE, UNTRENCHED AREAS, OR OTHER FENCE FAILURES SHOULD BE REPAIRED WITHIN 24 HOURS. ·SEDIMENT TRAPPED BEHIND SILT FENCE SHOULD BE CAREFULLY REMOVED ONCE DEPTH REACHES 6". MAINTENANCE NOTES: ·ALL CONSTRUCTION ENTRANCES SHOULD BE INSPECTED AT LEAST ONCE WEEKLY OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. ·EXCESSIVE AMOUNTS OF SEDIMENT SHOULD BE REMOVED FROM THE CONSTRUCTION ENTRANCE IMMEDIATELY. ·ANY SEDIMENT TRACKED ONTO PUBLIC ROADS SHOULD BE CLEANED IMMEDIATELY AND THE SOURCE OF THE SEDIMENT ADDRESSED. NOTES: ·DEWATER SILT-LADEN WATER IN WORK AREA TO REMOVE VISUAL TURBIDITY. DEWATERING INTO GRASS IS ACCEPTABLE IF TURBIDITY CAN BE REMOVED USING THIS METHOD. ALL DISCHARGE MUST BE RETURNED TO THE STREAM ALONG A STABILIZED, NON-EROSIVE OUTLET. ·PUMP-AROUND SYSTEM AND PHYSICAL FLOW DIVERSIONS SHALL NOT BE LEFT UNATTENDED WHILE SYSTEMS ARE IN-PLACE/OPERATING. ·INSTREAM DIVERSIONS AND PUMP-AROUND EQUIPMENT SHALL BE REMOVED FROM THE STREAM IN ANTICIPATION OF OR DURING BANKFULL PRECIPITATION EVENTS. INSTREAM GRADING AND STRUCTURE CONSTRUCTION WILL NOT BE ALLOWED DURING BANKFULL FLOW EVENTS. ·THE CONTRACTOR SHALL TAKE PRECAUTION TO PROTECT AGAINST EROSION AND SEDIMENTATION WHEN TURNING WATER BACK INTO NEWLY CONSTRUCTED CHANNEL. PUMPING, STONE AND SANDBAGS SHOULD BE USED AS NECESSARY TO DIRECT FLOW IN A NON-EROSIVE WAY. CHANNELS MUST BE FULLY STABILIZED WITH MATTING AND PERMANENT OR TEMPORARY BED STABILIZATION MATERIAL/STRUCTURES PRIOR TO RELEASING WATER INTO THESE AREAS. SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTIONX:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.10August 4, 20205' MIN6" MIN NOTES: ·VOID SPACES BETWEEN ROCKS ON BERM SHALL BE FILLED WITH NATIVE SOILS. ·SIZE PER NCDEQ STORMWATER MANUAL GUIDANCE FOR LEVEL SPREADERS.R/WR/WR/WA A' POROUS ROCK AND SOIL BERM BOTH ENDS SHALL TIE IN AT Z + 1' Plan View B 1.5' MIN 1' MIN Earthen Level Spreader Dimensions B C D E 18" CMP 5'5'5'10' 24" CMP 5'8'10 15' 1.5' MIN 1' MIN Section A-A' DE 6" MINC 1' MIN Floodplain Depression Not to Scale 1 6.10 A A' Plan View NOTES: ·INSTALL A DENSE LAYER OF BRUSH/WOODY DEBRIS, AT POOL BOTTOM, WHICH SHALL CONSIST OF SMALL BRANCHES AND ROOTS COLLECTED ON-SITE AND SOIL TO FILL ANY VOID SPACE. LIGHTLY COMPACT BRUSH/WOODY DEBRIS LAYER. ·TIGHTLY COMPACT EARTH BACKFILL TO PREVENT EXISTING CHANNEL EROSION ·SEED, MULCH AND INSTALL EROSION CONTROL MATTING AND BANK STABILIZATION PER PLANS. POOL BOTTOM EXISTING CHANNEL FLOW B B' Section A-A' Earthen Level Spreader Not to Scale 2 6.10 FLOW PROPO S E D G R A D E PROPO S E D G R A D E 2:1 MAX POOL BOTTOM Section B-B' 1.5' (TYP) TOP OF BANK (TYP) 0TOE OF SLOPE (TYP) ELEVATION AS DESIGNATED IN GRADING PLANS NATIVE SOIL PROPOSED GROUND 5:1 MAX 8" MIN EARTH WITH MIX OF RAILROAD BALLAST SOD COVER EROSION CONTROL MATTING AND INTEGRATED WOODY DEBRIS AS DIRECTED BY THE ENGINEER DEPRESSION OUTLET AS DESIGNATED IN PLANS NATIVE SOIL 6" CLASS A/B MIX WITH FILTER FABRIC AS SHOWN IN PLANS FILTER FABRIC AS DIRECTED BY THE ENGINEER PROPOSED FILL POROUS ROCK AND SOIL BERM CLASS A/B MIX OR EQUAL POROUS ROCK AND SOIL BERM CLASS A/B MIX OR EQUAL ELEVATION Z AS SHOWN ON GRADING PLANS ELEVATION Z AS SHOWN ON GRADING PLANS 2: 1 M A X 2 : 1 M AX2:1 MAX X:\Shared\Projects\005-45020 Little Tennessee East Buffalo\Cadd\Plans\45020 - Details.dwgAugust 4, 2020East Buffalo Mitigation SiteGraham County, North CarolinaDetails005-45020HBERJM6.11August 4, 2020SheetChecked By:Job Number:Drawn By:Project Engineer:Date:Revisions:167-B Haywood RdAsheville, NC 28806Tel: 828.774.5547License No. F-0831JAC OB P. M C L E AN033578NORTH CAROLIN A PRO F E SSION A L ENGIN E E RSEAL PRELIMIN ARY DO N OT USE F OR CONSTRUCTION2.5 MIN. 1 NOTES: 1.STOCKPILES STAGING AREAS SHALL ONLY BE PLACED IN AREAS DESIGNATED ON THE PLANS. 2.SILT FENCE SHALL BE PLACED ON STREAM SIDE OF ALL STOCKPILES. 3.STOCKPILES SHALL BE LOCATED A MINIMUM OF 50 FEET FROM STORMWATER DRAINS OR INLETS. MAINTENANCE NOTES: 1.ALL STOCKPILE AREAS AND SILT FENCES SHALL BE INSPECTED AT LEAST ONCE PER WEEK OR AFTER 0.25" OF PRECIPITATION WITHIN 24 HOURS. 2.SILT FENCE SHOULD BE INSPECTED FOR TEARS, UNTRENCHED AREAS, OR OTHER FAILURES AND REPAIRED WITHIN 24 HOURS 3.SEDIMENT SHALL BE REMOVED FROM BEHIND THE SILT FENCE ONCE DEPTH REACHES 6" 4.ANY SOIL STOCKPILES LEFT IN PLACE FOR LONGER THAN 7 DAYS SHALL BE SEEDED AND MULCHED OR OTHERWISE STABILIZED. SILT FENCE STOCKPI L E Stockpile and Staging Areas Not to Scale 1 6.11 2 6.11 Haul Roads Not to Scale STREAM PRIMARY HAUL ROAD TO BE USED THROUGHOUT PROJECT, SEE NOTE 1 (NOTE 1 APPLIES TO ALL HAUL ROADS) NOTES: 1.IF HAUL ROADS ARE A SOURCE OF EROSION, ONE OR MORE OF SILT FENCE, DIVERSIONS, TEMPORARY STABILIZATION (STRAW) OR OTHER MEASURES SHALL BE APPLIED TO PREVENT SEDIMENTATION TO STREAM. 2.ONCE NO LONGER NEEDED TO CONDUCT PROJECT ACTIVITIES, RENATURALIZE HAUL ROADS AND CONDUCT RIPPING, DISCING OR PULVERIZING AND AMENDMENT. THEN SEED AND APPLY MULCH. HAUL ROADS TO BE DECOMMISSIONED AND NATURALIZED IMMEDIATELY AFTER USE IS NO LONGER REQUIRED HAUL ROADS TO BE DECOMMISSIONED AND NATURALIZED IMMEDIATELY AFTER USE IS NO LONGER REQUIRED