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HomeMy WebLinkAbout20060751 Ver 1_Complete File_20060405V J v? IS OK COVE-ROAD ..(SR 1135f JACKSON COUNTY STREAM RELOCATION April 5, 2006 i TABLE OF CONTENTS STREAM RELOCATION PLAN .............................................................................3 Objectives ................................................................. Project Description .................................................................................................3 Reference Reach .....................................................................................................3 Site Maps ................................................................................................................ 3 Site Plans ................................................................................................................3 Biological Community Types ......................................... ........4 Morphological Stream Classification ................................ Stability Enhancements ..........................................................................................4 Sediment Transport ................................................................................................5 Buffer and Planting Requirements .........................................................................5 Native Grass Seeding. And Mulching ....................... Temporary Seeding: ............................................................................... ............. 6 Fertilizer Top diessing: ............................................................. ti Supplemental Seeding:: ....:................... .......... ................:..:............................ 6 Mowing: ............................................................................................................... 7 Stream Bank Reforestation Materials: ................................................................ 7 Preparation: ......................................................................................................... 8 Potential Problems ..................................................................................................8 SUMMARY TABLE ................................................................................................. 9. UNNAMED TRIBUTARY TO THE EAST FORK TUCKASEIGEE RIVER ...... 13 Location Maps ......................................................................................................13 Plan View .............................................................................................................15 Profile, Existing and Proposed .............................................................................16 Cross Section, Existing and Proposed ..................................................................18 Rock Weir Detail ..............................................:...................................................22 Stream Habitat Evaluation ....................................................................................23 Pebble Counts .......................................................................................................27 UNNAMED TRIBUTARY TO ROCKY FORK (REFERENCE REACH) ...........30 Location Map ........................................................................................................30 Plan View .............................................................................................................31 Profile .................................................................................................................... 32 Cross Section ........................................................................................................36 Stream Habitat Evaluation ....................................................................................39 Pebble Counts .......................................................................................................43 2 STREAM RELOCATION PLAN Objectives The NC DOT proposes to pave Shook Cove Road, SR 1135 in Jackson County. This road provides access to a public boat launch on Cedar Cliff Lake and to numerous homes in the area. An unnamed.tributary to the East Fork Tuckaseigee River crosses this road and runs adjacent to the fill slope on the northeast side of the existing gravel. This will require relocating the stream for approximately 126 feet to accommodate the new fill slope. The attached plan relocates the stream approximately 15 feet to the north east and includes restoring the stream to a reference dimension, pattern, and profile as well as enhancing biological integrity. Project Description The existing stream emerges from a narrow wooded colluvial valley to a cleared Type H valley in the vicinity of the road crossing. The stream is not a blue line on the USGS 7.5 minute quadrangle maps but appears to be perinneal. The existing segment of the stream adjacent to the road is severely impacted by grading and channelization upstream from the road crossing and from road maintenance operations. Plans, profile, and cross sections are attached. Reference Reach The reference reach used is in the Mills River Watershed, located 0.6 miles west of Mills River Campground, 0.45 miles west of the bridge over Mills River, and 429 to 984 feet north of North Mills River Road on an unnamed tributary to Rocky Branch. The reference reach consists of 3 segments of the tributary which are on the same 700'+/- reach of stream. Although the reference reach is in a different watershed, it is similar in valley type, slope, and watershed area. Cross Section No. 3 has a lower width-depth ratio than the other cross sections. This cross section is used primarily as a check on area and flow. Site Maps Location maps of the site and the reference reach are shown on the following pages. Site Plans Plans for the restoration include the plan view showing relative locations of proposed features, a profile view showing grade control, typical sections at specific locations, and details of various structures used for stability. The watershed of the stream to be relocated is primarily forested in the upper reach and is less wooded with residential and farm use in the vicinity of the road. An abandoned field lies beside the stream opposite the road. The stream is connected to a floodplain in the edge of this field at only one location at and below the cross section at station 22+80. The proposed location of the stream will place it adjacent to the field and the wooded area at its current location at the bottom of the fill slope. Efforts will be made to save as much of the existing trees and vegetation as possible. Biological Community Types The reference reach rated slightly better than the existing stream to be relocated in almost all categories of the habitat evaluation form. The existing stream was considered to be slightly affected by channelization in the past due to being immediately adjacent to the fill slope. The proposed stream will have some flood plain bench width separating it from the fill slope, depending on the position in the meander. Only 2 of the 5 listed habitat types were present in the existing stream., The proposed stream will have a greater width-depth ratio throughout its length and will be less entrenched, which should allow better habitat to develop. The bottom substrate tends more toward gravel than cobble in the existing location. This may be primarily a result of high sediment supply from the gravel road. Quarried stone was observed in the stream bottom. Cobble size stones can be stockpiled during the construction process and relocated to proposed stream channel. Pools of beneficial size were essentially absent in the existing reach. More defined pools beneath each step should benefit habitat. While eroded areas were present on the existing streambank, large woody vegetation and the associated root mass provides stability to the soil and should be more effective on the reduced bank height of the proposed stream. Habitat in the proposed stream relocation can be enhanced by "re-using" natural woody material from in and around the existing stream. The proposed stream will obviously still be adversely impacted by the proximity to the roadway and land disturbing activities upstream. The proposed riparian zone width will be less than optimal, however, selection of a variety of plantings and maintenance should be effective. Morphological Stream Classification The Rosgen stream classification system was used to classify the stream to be relocated and the reference reach. The stream type will not change, however, it has the potential to be a more stable B4a type stream. A table of morphological characteristics and supporting data is provided in the following pages. Stability Enhancements The stability of the existing stream was evaluated using Near Bank Stress and Bank Erosion Hazard Index, from Wildland Hydrology publications. A Pfankuch Channel Stability form was also completed for comparison, from "Stream Reach Inventory and Channel Stability Evaluation", US Department of Agriculture Forest Service/ Northern Region. These procedures indicate that total erosion can be reduced somewhat. Much of the sediment supply on the existing stream is from road materials. Aside from establishing a stable channel, pavement of the roadway and constructing a shoulder will reduce the amount of sediment that reaches the channel. 4 The lateral stability of the existing stream is supported by the large woody vegetation and associated root mass. Tendency toward moderate lateral instability at and just below the cross section at station 22+82 will be lessened by the decreased sediment supply from the gravel road to be paved. Vertical instability of the existing stream is evidenced by the increasing bank height over the reach studied. Measures to control this instability in the relocated section include decreased slope between steps that are grade controlled with rock weirs. The lateral stability prediction for the reference reach included factors indicating moderate instability. These were primarily tight meanders due to site constraints and the steep side slopes that originate immediately at the bankfull width. These can be reduced or eliminated-in the proposed stream relocation by establishing stable meanders and by constructing a bankfull bench adjacent to steep side slopes as illustrated in the cross section drawing. Rosgen recommends a bankfull bench on the outside of bends of at least 10% to 15% of the bankfull width. The cross section drawing uses 1.2 - 2.0 feet, which is 20% - 33% of the bankfull width. The vertical stability prediction for the reference reach indicated stability with a slight tendency for degradation, however, this tendency was also due to bank height ratio, which will be rectified in the proposed stream relocation. Sediment Transport Entrainment calculations of the reference reach indicated that particles in the range of 150 - 400 millimeters were being transported across the cross sections. The shear stress in the proposed channel at bankfull flow should also transport this size particle. Particle counts were made at each of the 3 cross sections as well as along the length of each of the 3 segments of the reference reach., Velocity determinations were made at each of the three cross sections using local slope. Sediment transport calculations results are supported by visual observations within the stream. The stream bed appeared to be made up of a bimodal distribution. The D84 particle sizes were in the range of .2 mm to 15 mm except for Cross Section No. 2 which had a D84 particle size of 97 mm. The smaller particles were bright while the larger particles of 100 mm to 500 mm were dull and supported moss growth. This indicates that the larger particles were on the upper end of the competence ability of the stream to transport at bankfull flow. The smaller particles are moved regularly down the watershed while the larger cobbles and boulders accumulate. from colluvial deposits and are more likely to become imbedded. The proposed stream is designed to transport particles in the range of 250 - 300 millimeters by setting the step spacing close enough to cause a relatively uniformly sloped bankfull height along. the reach. Care should be taken to avoid long step spacings which will isolate the slope between steps and result in a local slope that is insufficient to transport sediment particle sizes. Buffer and Planting Requirements Native Grass Seeding And Mulching Native Grass Seeding and Mulching shall be performed on the disturbed areas of wetlands, and adjacent to Stream Relocation and/or Trout Stream construction within a 50 foot (16 meter) zone on both sides of the stream(or depression),.measured from top of stream bank, (or center of depression). The stream bank of the Stream Relocation shall be seeded by hand, hydroseeder within permit compliance, and/or other method that does not alter the typical cross section of the stream bank. Native Grass Seeding and Mulching shall also be performed in the Permanent Soil Reinforcement Mat section of Preformed Scour Holes. The kinds of seed and fertilizer, and the rates of application of seed, fertilizer, and limestone, shall be as stated below. During periods of overlapping dates, the kind of seed to be used shall be determined by the Engineer.' All rates are in pounds per acre (kilograms per hectare). August 1 - June 1 May 1 - September 1 25# (28kg) Kentucky Bluegrass 25# (28kg) Kentucky Bluegrass 8# (9kg) Big Bluestein 8# (9kg) Big Bluestein 6# (7kg) Indiangrass 6# (7kg) Indiangrass 4#(5kg) Switchgrass 4#(5kg) Switchgrass 35#(39kg) Rye Grain 25#(28kg) German or Browntop Millet 500# (560kg) Fertilizer 500# (560kg) Fertilizer 4000# (4500kg) Limestone 4000# (4500kg) Limestone Approved Kentucky Bluegrass Cultivars: Adelphi Baron Bristol Challenger Columbia Fylking Glade Kenblue Merit Plush Ram I Rugby Sydsport Touchdown Vantage Fertilizer shall be 10-20-20 analysis. Upon written approval of the Engineer, a different analysis of fertilizer may be used provided the 1-2-2 ratio is maintained and the rate of application adjusted to provide the same amount of plant food as a 10-20-20 analysis. Temporary Seeding: Fertilizer shall be the same analysis as specified for "Seeding and Mulching" and applied at the rate of 400 pounds (450kg) and seeded at the rate of 50 pounds per acre (55kg per hectare). German Millet or Browntop Millet shall be used in summer months and rye grain during the remainder of the year. The Engineer will determine the exact dates for using each kind of seed. Fertilizer Top dressing: Fertilizer used for top dressing shall be 16-8-8 grade and shall be applied at the rate of 500 pounds per acre (560 kg per hectare). Upon written approval of the Engineer, a different analysis of fertilizer may be used provided the 2-1-1 ratio is maintained and the rate of application adjusted to provide the same amount of plant food as 16-8-8 analysis. Supplemental Seeding: The kinds of seed and proportions shall be the same as specified for "Seeding and Mulching", and the rate of application may vary from 25# to 75# per acre (28kg to 85kg per hectare). The actual 6 rate per acre (hectare) will be determined by the Engineer prior to the time of top dressing and the Contractor will be notified in writing of the rate per acre (hectare), total quantity needed, and areas on which to apply the supplemental seed. Minimum tillage equipment, consisting of a sod seeder shall be used for incorporating seed into the soil as to prevent disturbance of existing vegetation. A clod buster (ball and chain) may be used where degree of slope prevents the use of a sod seeder. Mowing: The minimum mowing height shall be 6 inches (150 mm). Native Grass Seeding and Mulching shall be performed in accordance with Section 1660 of the Standard Specifications and vegetative cover sufficient to restrain erosion shall be installed immediately following grade establishment. Stream Bank Reforestation Materials: Stream bank reforestation will be planted in areas designated on the plans and as directed by the Engineer. Type I Stream bank Reforestation shall be live stakes, planted along both stream banks. Coir fiber mat shall be installed on the stream banks where live staking is to be planted as shown on the stream bank typical cross section and in locations as directed by the Engineer. Work includes providing all materials, excavating and backfilling, and placing and securing coir fiber mat. Provide matting to meet the following requirements: 100 % coconut fiber (coir) twine woven into a high strength matrix. Thickness 0.30 in. minimum. (7.6 mm) Tensile Strength - 1348 x 626 lb/ft minimum (1650.5 x 766.5 kg/m) Elongation - 34% x 38%o maximum Flexibility (mg-cm)- 65030 x 29590 Flow Velocity- Observed 11 ft/sec (3.35 m/s) Weight - 20 oz/SY (678 g/SM) Size - 6.6 x 164 ft (120 SY) or (100 SM) "C" Factor - 0.002 Open Area (measured) - 50% Provide wooden stakes 12 in. (300 mm) in length with a notch cut 1 in. (25 mm)from top. Place the matting immediately upon final grading.. Provide a smooth soil surface free from stones, clods, or debris which will prevent the contact of the matting with the soil. Take care to preserve the required line, grade, and cross section of the area covered. Unroll the matting and apply without stretching such that it will lie smoothly but loosely on the soil surface. Bury the top slope end of each piece of matting in a narrow trench at least 6 in. (150 mm) deep and tamp firmly. Where one roll of matting ends and a second roll begins, overlap the end of the upper roll over the buried end of the second roll so there is a 6 in. (150 mm) overlap. Construct check trenches at least 12 in. (0.3 m) deep every 50 ft. (16 m) longitudinally along the edges of the matting or as directed by the Engineer. Fold over and bury matting to the full depth of the trench, close and tamp firmly. Overlap matting at least 6 in. (150 mm) where 2 or more widths of matting are installed side by side. Place stakes across the matting at ends, junctions, and check trenches approximately 1 ft. (0.3 m) apart with notch facing up slope. Place stakes along the outer edges and down the center of each strip of matting 3 feet (1 meter) apart. Place stakes along all lapped edges 1 ft. (0.3 m) apart. Refer to details in the plan sheets. The Engineer may require adjustments in the trenching or staking requirements to fit individual site conditions. Live staking plant material shall consist of a random mix made up of 50% Black Willow (Salix nigra), 50% Silky Dogwood (Corpus amomum). Other species may be substituted upon approval of Engineer. All plant material shall be harvested locally (within the same physiographic ecoregion and plant hardiness zone) or purchased from a local nursery, with the approval of the Engineer. All live stakes shall be dormant at time of acquisition and planting. Live stakes shall be 1/2-2 inches (12-50 mm) in diameter. Stakes shall also be 2-3 feet (0.6-1 meter) in length. Preparation: During preparation, the basal ends of the live stakes shall be cleanly cut at an angle, to facilitate easy insertion into the soil, while the tops shall be cut square or blunt for tamping. All limbs shall be removed from the sides of the live cutting prior to installation. Live stakes shall be installed within 48 hours of cutting. Outside storage locations should be continually shaded and protected from wind and direct sunlight. Live cut plant material shall remain moist at all times before planting. Install live stakes according to the typical cross section and as directed by the Engineer. Tamp live stakes perpendicularly into the finished bank slope with a dead blow hammer, with buds oriented in an upward direction. Stakes.should be tamped until approximately % of the stake length is within the ground. The area around each live stake shall be compacted by foot after the live stake has been installed. Stakes shall be spaced approximately 4 feet (1.2 meters) on center. Live stakes should be installed according to the configuration presented in the details of the plan sheets. One to two inches shall be cut cleanly off of the top of each live stake (with loppers) at an angle of approximately 15 degrees following installation. Any stakes that are split or damaged during installation shall be removed and replaced. Type H Stream Bank Reforestation shall be bare root seedlings. The seedlings shall be planted as soon as practical following permanent seeding and mulching. The seedlings shall be planted from top of bank out, along both sides of stream, as designated on the plans. Seedlings shall be 12-18 inches (300-460mm) tall. Root dip: The roots of reforestation seedlings shall be coated with a slurry of water, and either a fine clay ("kaolin") or a superabsorbent that is made to be used as a bare root dip. The type, mixture ratio, method of application, and the time of application shall be submitted to the Engineer for approval. With the approval of the Engineer, seedlings may be coated before delivery to the job or at the time of planting, but at no time shall the roots of the seedlings be allowed to dry out. The roots shall be moistened immediately prior to planting. Seasonal Limitations: Stream bank reforestation shall be planted from November 15 through March 15. Potential Problems One of the primary constraints associated with this project is the lack of available width for flood plain and buffer requirements. A flood plain is proposed between the proposed stream location and the roadway to minimize impacts to the stream from the roadway. The right bank of the proposed stream will be adjacent to the existing or proposed fill slope of the roadway. Where this slope is to be disturbed, stability will have to be assured by placing erosion control matting on all slopes 2:1 or greater. 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Channel 1?2o?1n r. a'1;e:topn m?<p as an additional aid for this parameter) - Score .. .1 =b1 uaturaL trcquent bends (good.diversity of bends or falls) ........................ ....:....................... 5. - mh.amiiel 1 tau ?; Ihi laluent bends ...t...... .. .......................... ..................................... 4 •r (. zc < ua "'l11 ,? iCtn l3 e3ent _ ...... ..... .... ............. / ? . - 3 l >....z..; . •r....;,a<ltu,ra'ization, >40% of strream=Tlisrupted......... ......... ........................................... . Y l . ,.r,PAL..Y cllannelized or rip rapped or gabioned, etc .... ................................................ .-- Remarks Subtotal II. Instrear+t ?1 "tsl}. ?uio?r t rcentageof the reach that is favorable for benthos colonization or fish cover. - Circle the ri occur ' . ric (Macrophytes) sticks and leaf packs (snags and logs) (undercut. banks or raojr,-= _ mats) s , o. older leaves that are par a loge and have begun'to decay. Piles of leav es'in pool areas are * I ";' 1vIPLE: If >70% of the reach is rocks, l type is present, circle the score of 17. i"_" OF REACH FAVORABLE. FOR COLONIZATION OR COVER = >70% 40-70% 20-40% <20% Score Score Score Score - or 5 types present............,::.. 20 16 12 8 ; W * ,s present ... 19 15 1 7 2 types present .% ............. 18 14 10 6 1 typp present... ................:. .. . 17 13 5. No types present ........................... 0 Remarks . Subtotal C) M. Bottom 'Subs rat -, (s,'If sand, detritus, gravel, cobble, boulder) look at entire reach for substrate scoring, but only look - ` at riffle for e;!,O nAdeilness. A. sibs' rate with Vinod mix of gravel cobble and boulders Score 1. embeddedness <20% (very little sand, usually only behind large boulders) ......................... 15 2. embeddedness 20-40% ...................: ' ...................................................................................... 12 3. embeddedness 40-80% ......................................................................................................... 8 4. embeddedness >80% .......................................................................................................... 3 B. substrate gravel and cobble 1. embeddedness <20% ....................................................................................:....................... 14 2. embeddedness 20-40% ......................................................................................................... 11 3. embeddedness 40-80% ..................................................................................................:..... 6 4. embeddedness >80% ............................................................................................................ 2 C. substrate-mostly gravel 1. embeddedness <50% ...... ...................................................................:............................... 80 2. embeddedness >50% ............................................................................................................ 2 D. substrate homgeneous 1. substrate nearly all bedrock ................................................................................................... 3 2. substrate nearly all sand ........................................................................................................ 3 3. substrate nearly all detritus ...................................................... ..............:........................... .... 2 4. substrate nearly all silt/ clay .................................................................................................. 1 Remarks Subtotal The Internal Technical Guide for Stream Work in North Carolina a4 23 ,t. Appendix E DWQ Stream Habitat Evaluation Form -5/99 Revision 4 .r Habitat Assessment Field Data Sheet Mountain/ Piedmont Streams D i, „ctioris for use of this Assessment: The observer is to survey a minimum of l00'm ters c d i. an upsam irection starting above the bridge pool and the road, right-of-way. The.stream.segment wlt. ch :2f tft? represen average st:zam conditions. In order to perform aproper habitat evaluation the observer needs to &et t': ? stre-,m: ?ll meter readings ne.? d to be performed prior to walking the stream, 'When working the habitat index, selct-t i;t , , r ption which best fits the observed habitats and then circle the score. If the observed habitat falls in between two de, d, Lon: , select an intermediate score. There are eight different metrics in this index and a final habitat score is determined by ,-'; rl3 re ,its from the different metrics: S-koah 16ej SR 113S SrAeamt/. rULAaS44e2-Location/Road Q ;L ' 2.cou..?t: D ate 3- 8 06o CC# - ? S. S Basin -bs-;rver(sj?¢,tti/ (?K, Office Location Pill %? ? _r!va Agency NGG a _ Do Type of Study: Fish Benthos Basinwide Special Study (Describe P. 2 l _Sfr a!js.t__??i o??.. 1 at' ude-?S%k`. S"U• e) on 5, 3"D 5 coregion (circle one) 0P D;-,,I_ J Physical Characterization: Land use refers to immediate area that you can see,from include what you see driving thru the watershed in the remarks section. Also use the remarks secti4: Jr v, „, y :;,tisF s as "deeply in :is: d" or "exposed bedrock" or other unusual conditions. C7 wand use: Forest% Active Pasture /f7 % Active Crops % fallow Fieid 01 _LQ ? - 11,...'vl Industrial % 'Residential 3C> Other ,R_%o-Describ Width: (meters) Stream Channel` Flow conditions (circle one): High Normal Low Manmade Stabilization: Y[ ] N04 Describe: Water Quality: Temperature Turbidity: (circle) Cleaz Average Stream Depth: (m) ?'clocity_ . m/sec °C Dissolved Oxygen in Conductivity umhos/cm. 9/1 Slightly Turbid Turbid Tannic Weather Conditions: LLea r we /- m Photo # Remarks: The Internal Technical Guide for Stream Work in North Carolina pH 22 P nol Variety Pools are areas of deeper than average maximum depths with little or no surface turbulence. Water velocities'=.; -'° r'rii- t d with pools are always slow. Pools may take the form of "pocket water", small pools behind boulders or obs}uctions, in 1, l,ti high gradient streams. A. Pools present 1. Pools Frequent (>30% of 100m area surveyed) y a. variety of pool sizes ............................................................... ...................................... 10 ' b. pools same size ................................................................................... .......................... }.Noels Infrequent (<30% of the 100m area surveyed) a. variety of pool sizes ............................... b.pools same size.,-... .................. - -- ------- .....?... ;'. i?..> Fools absent. _.:. 1. Runs:present ....:..............................:.............................. 2. Runs absent......... .. Paj, IY!e :' fabitatS Riffles i..nen` <.ifrequLat t`?grc ? ^or? -.. we;.l defined riffle and run, riffle as wide as. stream and extends 2X width of stream .... HIT-- as wide as stream but riffle length is not 2X stream width ..............: i4 C. riffle not as wide: as stream and riffle length is not 2X stream width ......................... .. :: l;a D 1 iffles absent ...................... ao- rx - " B--snit Stability and Vegetation - Rt. Bank .wanks stable I.. no evidence of erosion or bank failure, little potential for erosion ........................ ^. 7 l>. Erosion areas present 1. diverse trees, shrubs, grass; plants healthy with good root systems ................... 2. few trees or small trees and shrubs; vegetation appears generally healthy ...................... 5 3. sparse vegetation; plant types and conditions suggest poorer soil binding ................... 3U 4. mostly grasses, few if any trees and shrubs, high ersosion and failure potential at hiWh flow 2 2. 5: no bank vegetation, mass erosion and bank failure evident ................:...............:........... 0 0 Total Remarks VII. Light Penetration (Canopy is defined as tree or vegetative cover directly above the stream's surface. Canopy would block out sunlight when the sun is directly overhead). t Score A. Stream with good shading with some breaks for light penetration ...................:......................:.. 10 B. Stream with full canopy - breaks for light penetration absent .......:............................................. 8 C. Stream with partial shading - sunlight and shading are essentially equa .......:............................ 7 D. Stream with minimal shading - full sun in all but a few areas ..............................:........................ 2 E. No shading ....................:............................................................................................................. 0 Remarks Subtotal The Internal Technical Guide for Stream Work in North Carolina 24 1. f 11L Riparian Vegetative Zorn; Width Definition: A break in the riparian zone is any area which allows sediment to enter the stream. Breaks refer to the near-stream portion of the riparian zone roanks); places where pollutants can directly enter the stream. Lft. Bank Rt. Bank Score Score A. Riparian zone intact (no 'breaks) 1. zone width > 18 rr caters ............... .................................................................... :.. 5 5 2. zone width. 12-18 na:t.ers ...... ... ............... .. ....:. ...... .... .. 4 4 3. zone width &` l2 :re..ters . ..........................................:..............,..................... 3 3 4. zone widtL < 6 Maters ..................... ?• 2 2 B. Riparian zone not : lra a (U;,,aks) 1. breaks rare" a .zoac. =X, dth > A meters. ........................ ............. 4 4 _ b ?uti a .n... h 12-18-meters ........... ... 3 3 .z. w'16-12 mutes..... ............................................... 2 2 „Y:n?.-? idd • 6 Meters : ....... .................................... 1 l . 2. breaks ?,oita"MO ......... ...................... ........ 3 3 -.A? Ear aka. ` ? 18 +'11- fern . ................................................... ........ ...... 2 2 .. .... d ?'f? tS1 i'. t nl to S ..... ' . . . m 1 1 .. - ?. a<>z.F VF . ,?i. < 6 eters .. ...... .... .:. ................................................ Remarks Total TOTAL.SCORE 5/99 Revision 4 e The Internal Technical Guide for Stream Work in North Carolina OL ?O 25 number of particles U Q- r Co 0 --t N O 00 O *k 0 N (6 N O N .U _a N U O L O u_ y-+ N W D 00 ?. Co. Co > N O c U. O Y CU O V ? .«r C O O N .Q N U O O r O O O r O O r E C N C •? N U_ ca a r O r O 0 0 0 0 0 0 0 \0 0 0 0 0 \ \ \ \ \ \ \ \ \ O O 000 d0• M N O O N uey} aeug lueo3ad o 000 Co 0 0 H > O.5 m _ p O y O) V OO N "t LO Oi N C c w a ca O N N_ E . c Q 3 Cl) C -0 N . to co N 'It E E N 0 0 O i0 d to a? number of particles O N O U Y 0 O U) LL_. N N O N f6 Y U O F- Y L O LL ca W Co Co N C O U) V C O O U N .n O n. O U 7 O ems- r0 Co CO N O 00 O O T- EL O O O O O a r 0 0 E O 0 O U r o ° ° o o c!? Co CCo O L Co r- > O CD Co ' :3 N O U ?0 O 0 ti N =3 4 t6 9 O N C C N O N 4) (D E 0 ? ? N Y E Co E O N N U CO o Q- Co Co -,t N 0 t6 c6 N qt E E d CD to O tp ? to Cr) LO CO Co 0) r O \° \ \° \° \o \° O 0 0 0 0 0 0 0 0 0 0 0 O M Co O Co M It M N O O ueyl aeug }ueoaed aZ number of particles (0 IZT N CO O "t N O< c n, CU O U Y 0 0 s a? m m M CO Y U 7 Y O LL LU LU C CO CO N c O M U) V C O O U 0 O d a> U CU O CV r O 0 0 T 0 O r U a? U 'C CU Q O 1 0 m 7 E 0 U I o ° ° 0 0 m ch00 00?o a H Z CU CZ - m o 0 O0 O ti N U p N ? C C U 0 U) N U N - E ` O cn a ? r- ^ E _ Y U. E (D N U) O U CO o n. CO CO 'It N "• Lo co E CU CO LO O LO 'It Ln N .- MU') 0 M M r fr- O \° \ 0\o \0 ° \0 0 \ \0 \° \° O 0 0 0 0 0 0 0 a) 00 CD 00 O ? LO 'O CC O O O r uegj jauUjuawed as y? ---- BEGIN SEGMENT 1, STATION 0 I I I-CROSS SECTION 1, STATION 80 I END SEGMENT 1, STATION 86 1 I I I I BEGIN SEGMENT 2, STATION 286 I -- CROSS SECTION 2, STATION 382 -- ENO SEGMENT 2, STATION 402 ',-POINT OF STREAM PIRACY I I I i POINT OF STREAM RESURGENCE CLEARING j BEGIN SEGMENT 2, STATION 644 CROSS SECTION 3, STATION 655 ?- END SEGMENT 3, STATION 701 % 11 POINT OF PIRACY TRAIL ' - POINT OF STREAM RESURGENCE I I I I ? STATION 1064 MILLS RIVER ROAD (GRAVEL) MILLS RIVER 0.45 MI. = ROCKY BRANCH --------------- --------------------------- REFERENCE REACH UT Turnbreeches Creek Relocatlon Hog Rock Road (SR 1703) Henderson County A 1 31 N O m X 0 0 n N d U m -c O c 0 U N N K 4 Y c m la 1 t N N C13 O C 0 0 0 0 0 ti O O a? U C O tq t? 0 N C C l0 L U 0 0 a O Cl) O O N O O O O O O O O C O O O C O O O Q) O ? O In V Rl N O O) O O O O_ O O O O O O Q? ?- r r r r r r r r (4) u04eAG13 Y C (B O 0 0. O X O Q ^U) U O r C O U N N X d Y C co m o . L)i .X , N _ t N ham ? tr U v" A ? ,tS `r t I 1 . ? 0 m 0 0 O C) c O Lo n O v o r? i` - I O N O s ? O o O o 0 0 0 0 Cl o O o o 0 0 0 0 0 0 0 0 0 0 0 0 O m co I-- Co Ln V' co N O O m O I" O co co co co co tb co O O O O O O O O O O O O (4) uo4enal3 33 C' -co 0 0 0- 0 F X 0 a! y U EE 0 N C U a) N X a Y I C ^C) W y ? ? CJ t I fr ,< F 5 m + I ? k ? ! v I r ? ?• 7 c i 's n r ? . 1 ? rw i Rw AJ ? I i I ? I ! ?• r . l ?? S ? i ?? { ? F S f ?! 1 1 t . a ( ro { ^% 1 X ! - j .! 0 O O In T co 0 M LO co m O O M Cl) 0 ti M LO 0 Cl) 0 CD co LO U') co O U) M In v M 0 It Cl) to M Cl) 0 M co LO N co O N CO l2 co M ul? 0 M O O M LO m N 0 0 N LO O O O O O N O O O O tf) O LO O LO LO a a 0 0 0 0 (}}) uoI.jE!A99 34 O is com i r - ? a : ylr - ? t , y1F H. 5 I ' a• rk I ,I 7 I ' kid - = - - - - - h =: - ; 1 f `1 ?a d ". tie ? f e ?+ Y l 'I - r ' CI) J ?eSV' N t _ ? ) O I I 1 ?;r ,. f• !? f1? ?3 a fj, ? A 7. ?- >::'srs i e tr) O O O co -I C.0 I O to O O O co co U, Ln co O in to t!7 O Q to W co L co N N N N N N O O O O O O (4) uo.Rena13 3 C co O O OI ? I X O O a co N U O l'! O U N U) X a C (B CO 00 E Ch c o w ? ti E E S; . E cm a C C? .2 u n c1 a? a? CD o 0 E E L E N io > c CD ? oo 0 1 h 06 LO ?Nl?r 0 0 a)r000 `000p ?_ d T U- Lo 0 O Y cc Y= 0 cn -= cu y j LL 0 o Cl) L Y ?. r M L L a) Lm L:)) ca 0 C Co U L O C co 0 s Oc a E c0 L m en a) a) 0 >> - p co N Y Y a) 0 Co Co CCf U U;6 ED c a) rr C ALL 0 O C > U C w C 1 - - N C c O O O (II c6 Q D N O O N 4- r C 7 O M It CO r OO)NN'-t? O?Or? 'C U U- u. l ? L lv N O co N ' N Q ... Cl) w O U ^ 0 ) `- O w+ `v E f6 L E --L N? y m E c ca a :s m` a O 0 (D a s a) ' a) 0 m 0 U) ? o a) -0 a) - C U cu U C - . - - - 00 L_ - L N (1) a) Co X = ca G) -0 . ? L L) 0 L >, X E E 3L o > -oLL U LL O? N in m N L N N 0) C r? 0 0 lC) O? ? r r O ? f6 CO l? J Lf) O in m ?- O O O O O c O o O r O ? T UOiJenaJ--? 36 C 7 O m CL E O U a`) C? G a3 a) CT 'C L O a) E LO C O o U -6 C Co C O ` O O C L a) O C W WO O Y O LL Y U O Q' N C O U a) Cn (n w p U -- - -- rN. s's 'g i 3 a ? r I a LO LO LO V- U') Lr5 0 0 0 o r o r r r UOi}ena13 E E N C7 N a N E E C N '? (U r U N O (U a) -0 O d O a) O (n> E C CD LO CD CD pew O O O 0 L L L C U w u> > a CA o?S O 2 O L- CO r N r N Cn r a) r C 0 O M r 2 0 0 O O o co LL CA O a) N U O :z U) CCf O L L' Co L U ` O C) a Co C O C LA CT M O .n U L O O (n Co o O` O L L d E Y Y ` - a) D N O O U Cn ? -O U C C O C CCS C6 p) (0 m i C O N > > N O a) n a C V C U)' Q .- (0 Co C C a) a) o o a N p m a? E cn in ? r- 00 ?CC o ' 0 Cp r i r CV r 0 0 O O LL LL cc 'IT Cl) I? ? v V O O ` N ? C O a .L.+ (p .?.. d w a) -CD 0. CL 0) O a) 'D N C a O c -0 -0 m -0 0 if a a) m N - m 0 E X E E 3 L o» U_ LL M A N t7 CD N .:3 r r C r L1) 0 0 Ln O N 0 0 O co co 3 -7 M T N T L Y p C T O O Y 00 C a) L ti t a a) C co O CL 'O O O C U') I C O U a) N N O c`) U N T O O m m LO N 0 1l- U) GO LO M O N (:6N r.?N O N U.j O N O N O N O N O N T O T O T O T- O T O T T T T' T 74 'UOI?OAG13 :-: E N .••. Q uj ? 0 EEC a) E E U O () a) O m m ° ?-?- o yin > ` Q) c O M cu c 6 :-: 0 a0 ` cn co a U 0 c 7 cq 05 r cA r C ? N N~ N O O CD r O r e- ` 0 0 0 O LL Q vi • V 7 v a) G ` cn cl, 76 ALL L U O O c0 O C N O) C . _ -0 U O m 0 a) L L a E Q) m m o p O U C C O a) t6 c0 O O N O > cn C- .r a1 Q N a? a) O o N D E cn ? M a) M m 00 O r M r r O 0 0 ti O 0 0 M _ LL LL LT ^ f6 ? ^ N c0 a) v E ? L _ ? L E N f` ^ L N C O d to-- a p C a) d O ._ a) va) O a O 0 -0 CD U) U C O U L L a) (D Ec CU -0 T. a) m a '0 0 3 Z N , x E E L 3: 0> -0 L LL .?? ?r?arn?rcar o ? -14 N M O O 64 LO N Ln p (a tQ m m 3? i ! ?? 3 fL/- ? ?n Appendix E DWQ Stream Habitat Evaluation Form 5/99 Revision 4 Habitat Assessment Field Data Sheet Mountain/ Piedmont Streams Directions for use of this Assessment: The observer is to survey a minimum of I00 meters of stream, preferably in an upstream direction starting above the bridge pool and the road right-of-way. The stream segment which is assessed should represent average stream conditions. In order to perform a proper habitat evaluation the observer needs to get into the stream. All theter readings need to be performed prior to walking the stream. When working the habitat index, select the description which best fits the observed habitats and then circle the score. If the observed habitat falls in between two descriptions, select an intermediate score. There are eight different metrics in this index and a final habitat score is determined by adding the results from the different metrics. vpp? #5 011& 3 well Stream ??rr^^ (?07' Location/Road X%i IS ``;V'eY Coup Date -5'-&)_1,/PS_CC# Basin t'?I"e.4o4 (7 Va Subbasin Observer(s)_ag,? ?!1 - Office Location_ t . 1 N- Ir??a Agency /Qe paT Type of Study: Fish Benthos Basinwide Special Study (Describe) Flej,,W.2 ' a Latitude S zy r3/"Longitude f9 Ecoregion (circle one) ©p Distance Surveye b0 meters Physical Characterization: Land use refers to immediate area that you can see from sampling location - in what you see driving thru the watershed in the remarks section. Also use the remarks section for such descriptions as "deeply incised" or "exposed bedrock" or other unusual conditions. Land use: Forest-% Active Pasture % Active Crops - % fallow Fields % Commercial % Industrial % Residential % Other _L%-Describe: A/Pt4 Width: (meters) Stream Channel - Z. Average Stream Depth: (m) (?. Velocity m1sec Flow conditions (circle one): High . Normal l Lo Manmade. Stabilization: Y[ J N[4 Describe: Water Quality: Temperature °C Dissolved Oxygen mg/l Conductivity µmhos/cm PH Turbidity: (circle),' el Slightly Turbid Turbid Tannic Weather Conditions:_.t: Photo # Remarks: SIRo/h8n ?'.3 _ G!_it'TV1i h 41•29 , /? DT /"OCG? /rjQ'S ?hGS`j ©l? G??47?? t 4rorn 6 U md„ ba 6: ,g A,0 -h The Internal Technical Guide for Stream Work in North Carolina U 22 j 1. Channel Modification (Use topo map as an additional aid for this parameter) Score A. channel natural, frequent bends (good diversity of bends.or falls) .................................................. -5 B. channel natural, infrequent bends .... :........................... ..................................................... .... 3 C. some channelization present ...................... D. more extensive channelization, >40%.of stream disrupted .............. ......................::...........::............: 2 E. no bends, completely channelized or rip Tapped or gabioned, etc .....................:............................. 0 Remarks Subtotal: IL Instream Habitat: Consider ercentage of the reach that is for b tsi o ' -or-fish co Circle the habitats which occur ocks ,(MacrAphytes) (ticks and A?pa ) rsnags and to undercut ba or root mats) Definition: older leaves that are, ha n: -o deca . es o leaves in pool areas are not considered leaf packs. EXAMPLE: If >70% ofthe reach is rocks, 1 type is present, circle the score of 17. AMOUNT OF REACH FAVORABLE FOR COLONIZATION OR COVER >70% 40-70% 20-40% <20% Score S Score Score 4 or 5 types present ................. 20 16 12 8 3 types present ......::................. 19 5 11 7 2 types present ......................... 18 14 10 6 ........... ...:... 1 type present ......... 13 9 5 No types present ........................... 0 R k '/ Subtotal emar s 111. Bottom Substrate (silt, sand, detritus, gravel, cobble, boulder) look at entire reach for substrate scoring, but only look at riffle for embeddedness. A. substrate with good mix of gravel cobble and boulders Score 1. embeddedness <20% (very little sand, usually only behind large boulders) ......................... 15 2. embeddedness 20-40% .......................................................................................................... 12 :.. 3. embeddedness 40-80% ......................................................................................................... 8 4. embeddedness >80% ........................................................."................................................... 3 B. substrate gravel and cobble ..:. 1. embeddedness <20% ....................................................................................... .................. :... ,- 2. embeddedness 20-40% ............................ ...................................... ................................... ] 1... -3. embeddedness 40-8,00 .......................................................................... .. .... 4. embeddedness >80% .............. 2 C. substrate mostly gravel 1. embeddedness <50% ................................. ....... .................................................................... 8 2. embeddedness >50% ..................... D. substrate homgeneous 1. substrate nearly all bedrock ................................................................................................... 3 2. substrate nearly all sand .............................:.......................................................................... .3 3. substrate nearly all detritus .................................................................................................... 2 4. substrate nearly all silt/ clay ................... .............................................. :................................. 1 Remarks Subtotal The Internal Technical Guide for Stream Work in North Carolina 23 IV. Pool Variety Pools are areas of deeper than average maximum depths with little or no surface turbulence. Water velocities' associated with pools are always slow. Pools may take the form of "pocket water", small pools behind boulders or obstructions, in large high gradient streams. A. Pools present Score 'z 1. Pools Frequent (>30% of 100m area surveyed) a a. variety of pool sizes .................................. .. 10 ................................................... .. b. pools same size .................................. 2. Pools Infrequent (<30% of the 100m area surveyed) a. variety of pool sizes ................................ b.pools same size ................................... :............................................................. B. Pools absent 4 1. Runs present ....................................... 2. Runs absent ........................................... 0 Remarks Page Total .J V. Riffle Habitats Riffles Frequent Riffles Infrequent A. well defined riffle and run, riffle as wide as stream and extends 2X width of stream...,, Shore Store B. riffle as wide as stream but riffle length is not 2X stream width .................:............ 14 7. C. riffle not as wide as stream and riffle length is not 2X stream width ....................................... 10 3 D. riffles absent ....................:........................... 0 ............................................................... Subtotal Vl. Bank Stability and Vegetation Left Bank Rt. Bank A. Banks stable Score Score 1. no evidence of erosion or bank failure, little potential for erosion ......... . 7 ......... ................ B. Erosion areas present 7 1. diverse trees, shrubs, grass; plants healthy with good root systems ................................ ( 2. few trees or small trees and shrubs; vegetation appears generally healthy ...................... .J 5 5 3. sparse vegetation; plant types and conditions suggest poorer soil binding ....................... 3 3 4. mostly grasses, few if any trees and shrubs, high ersosion and failure potential at high flow 2 2 5. no bank vegetation, mass erosion and bank failure evident ............................................ 0 0 Total 1 '2- Remarks VII. Light Penetration : (Canopy is defined as tree or vegetative cover directly above the stream's surface. Canopy would block out sunlight when the sun is directly overhead). A. Stream with good shading with some breaks for light penetration ............... 10 Stream with full canopy - breaks for light penetration absent ..................................................... C. Stream with partial shading - sunlight and shading are essentially equa .................................... 7 D. Stream with minimal shading - full sun in all but a few areas .................: E. No shading ............................................... ................................:.................................................. Remarks Subtotal The Internal Technical Guide for Stream Work in North Carolina 24 41 AM Riparian Vegetative Zone Width Definition: A break in the riparian zone is any area which allows sediment to enter the stream. Breaks refer to the near-stream portion of the riparian zone (banks); places where pollutants can directly enter the stream. A. Riparian zone intact (no breaks) 1. zone width > 18 meters .................................................................................:... 2. zone width 12-18 meters ................................................................................... 3. zone width 6-12 meters ...:................................................................................. 4. zone width < 6 meters ...................................................................................... B. Riparian zone not intact (breaks) 1. breaks rare a. zone width > 18 meters ........................................................................ b. zone width 12-18 meters ....................................................................... c. zone width 6-12 meters ....................................................................... d. zone width < 6 meters ..................:...................................................... 2. breaks common a. zone width > 18 meters .................................. ....................................... b. zone width 12-18 meters ...................................................................... c. zone width 6-12 meters ....................................................................... d. zone width < 6 meters ......................................................................... Remarks TOTAL SCORE $ 7L 5/99 Revision 4 C Lft. Bank Rt. Bank Score Score C> 5 4 4 3 3 2 2 4 3 2 1 3 2 1 -0 Q 3 2 1 3 2 1 0 Tota1__j The Internal Technical Guide for Stream Work in North Carolina 25 number of particles M M N N Lo O 0 y O C) I- i r a i L O i ° N > .. _ . _ __ ..-_{.__._.._-_._..y....-....... _..._.;........__..__._. __.__..._...«___.._._._.:.. -- _.._._..._.__..-- p O O O O 00 r ?_/ O IL ...__:. . ....'---':..........__._......:- ......................... ................... _........ .... ..... ...... „....... ............ --""-'-'-'.__.._._-....__......._._.._:.... .............. y O . ................................................................_................_.._...._.....__........ .:. ................_... .... .......... ........................ ........ .............._ . ....... _.... .s Q L C -......... _..... .._......_._.._-__.....:....-._?_ IIIi...._._..__-. ..-.._._: C N M O _ V W O O C) O 0 ! 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