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HomeMy WebLinkAbout20171242 Ver 1_2018 Monitoring Report_20190106Strickland, Bev From: Jennifer Robertson <jrobertson@atlasenvi.com> Sent: Wednesday, January 16, 2019 11:33 AM To: 'Shaeffer, David Leigh (Dave) CIV USARMY CESAW (US) (David.L.Shaeffer@usace.army.mil)'; Johnson, Alan Cc: Franchina, David A.; 'Seth Malamut (smalamut@stagindustrial.com)'; W. Scott Cooper; Kathy Godley Subject: [External] South Fork Business Park 2018 Stream Restoration Monitoring Report / Action ID: 2008-00363 and Project #: 17-1242 Attachments: South Fork Business Park Monitoring Report 2018 Flattened.pdf =External email. Do not click links or open attachments unless you verified. Send all suspicious email as an attachment to NNNNUmff nc. ov David/Alan, Attached is the 2018 stream restoration annual monitoring report for South Fork Business Park. Please see the cover letter that includes request for a conference call. Please let us know your availability for the call. Thank you, Jennifer L Robertson, President ATLAS Environmental, Inc. 712 English Tudor Lane Charlotte, NC 28211 (704) 512-1206 office (828) 712-9205 mobile www.atiasenvi.com Offices in Asheville and Charlotte NMENTAL �� A r� .A► AftW �� ` ■ ' January 16, 2018 US Army Corps of Engineers NC Division of Water Resources, Charlotte Regulatory Satellite Office 401 and Buffer Permitting Unit Attn: Mr. David Shaeffer Attn: Mr. Alan Johnson 8430 University Executive Park Drive, Suite 611 610 East Center Avenue, Suite 301 Charlotte, NC 28262 Mooresville, NC 28115 Re: South Fork Business Park, Mooresville, NC Stag Mooresville 2 LP Stream Restoration First Annual Monitoring Report Corps Action ID: SAW -2008-00363 / DWR Project #: 17-1242 David/Alan: Attached please find the first annual monitoring report for the stream restoration project at South Fork Business Park. As I believe you are aware this property was sold in 2017. The new owner is Stag Mooresville 2 LP. Mr. Seth Malamut is the contact for Stag. Mr. David Franchina, McGuireWoods LLP, is the environmental attorney for Stag Mooresville 2 LP. Mr. Franchina has requested a call with you to discuss follow up permitting and related matters. Please let me know your availability for a call. Best regards, �A+ dl&4z VAO-, Jennifer L Robertson ]Robertson@atlasenvi.com South Fork Business Park Stream Restoration Annual Monitoring Report Corps Action ID: SAW -2008-00363 DWR Project #: 17-1242 Report Completion Date: June 26, 2018 I19, Prepared For: STAG Mooresville 2 LP One Federal Street, 23rd Floor Boston, MA 02110 Prepared By.- Atlas y:Atlas Environmental, Inc. 712 English Tudor Lane Charlotte, NC 28211 A-,.TL� ENVIRONMENTAL 1 Table of Contents Introduction....................................................................................................................................................... 3 Restoration and Construction Summary........................................................................................................... 3 StructureLocation Map................................................................................................................................ 5 Morphology/Hydrology.................................................................................................................................... 6 Dimension..................................................................................................................................................... 6 Pattern........................................................................................................................................................... 7 Profile...........................................................................................................................................................7 Biological.......................................................................................................................................................... 8 VegetationMonitoring Plots.........................................................................................................................8 VegetationPlot Map...................................................................................................................................14 AquaticLife Survey....................................................................................................................................15 Non -Performing Grade Control Structures.....................................................................................................16 Conclusion......................................................................................................................................................23 PhotographLog..............................................................................................................................................24 ConstructionPhotographs...........................................................................................................................25 As -Built Photographs..................................................................................................................................28 2018 Monitoring Photographs....................................................................................................................30 NCSAM Evaluations.....................................................................................................................................36 Patternand Structure Locations......................................................................................................................40 LongitudinalProfile........................................................................................................................................42 Cross-Sections................................................................................................................................................49 Reach Classification and Data Worksheets....................................................................................................74 2 Introduction Stream impacts to an unnamed tributary to South Fork Withrow Creek, a Class C water, were results of both direct and indirect impacts leading to the issuance of a Notice of Violation from the U.S. Army Corps of Engineers dated August 24, 2016. A combination of excessive storm flow directed to the stream and construction of an impoundment located on the unnamed tributary created a system characterized by extremely flashy and erosive flows at discharges causing instability. The excessive flows resulted in rapid down -cutting of the stream bed and vertical banks forming gully -like stream conditions with no floodplain access. The mobilized sediment in the upper reaches impacted lower reaches burying stream features, aiding storm flows at discharges exceeding natural flow, restricting aquatic life mobility, and creating a loss of habitat. The stream restoration objectives focused on providing a natural system that was able to efficiently transport sediment, provide for aquatic life mobility, and restore the stream morphology (pattern, profile, and dimensions) for both temporal and morphological stability. Restoration and Construction Summary Stream restoration construction activities on site conducted by South Fork Mooresville LLC and Atlas Environmental, Inc. began on April 10, 2017 and were concluded on July 12, 2017. Originally a total of 16 grade control and habitat forming structures were installed along the 1,621 linear feet of stream from the toe of the slope at the upstream reach to the approximate location of the removed storm water best management practice dam. No grade control structures were installed along the section of stream downstream from the existing sewer line due channel migration being restricted by existing bedrock. In -stream structures consisted primarily of log vanes and steps with rock structures installed in locations where extra stability was required. There are a total of 9 log structures (log vanes and steps) and 7 large rock structures 0 -hooks and cross vanes). Two additional log steps were installed on May 8 and 9, 2018 to reduce the relative elevation change between structures, increase aquatic life passage, and minimize changes of being undercut by erosive storm flows. Storm water control devices, Aqua -Shield units, were installed to treat storm water runoff by removing total suspended solids. The main Aqua -Shield unit sends treated water to the stream via a level spreader through a single 24 -inch pipe and the remainder of the water, from large storm events, is culverted to the dry detention basin through a 48 -inch pipe. The water moves through the forebay separated from the main area of the pond by riprap and gravel to an outlet that directs the water treated by settling back to the stream at a downstream location at the end of the stream restoration reach. The Aqua -Shield systems allow for a reduction in the amount of storm water that is being directed to the stream. The level spreader system that discharges treated water to the stream consists of a level 24 -inch corrugated metal pipe with approximately 100 two inch holes torched into the pipe at varying elevations. The holes control the discharge stabilizing the stream system by creating a more natural hydrograph. The storm water flows through a bio -engineered wetland for additional settling and slowing of the flow before entering a widened section of the stream. 3 Grade Control Structure Tvae and Order Structure *Structure Number Log Step 1 Log Step 2 Rock Cross Vane 3 Rock Vane 4 Log Vane 5 Log Vane 6 Rock Vane 7 Rock J -Hook 8 Rock Cross Vane 9 Log Vane 10 Rock Cross Vane 11 Log Vane 12 Log Step 13 Log Vane 14 Rock Cross Vane 15 Log Vane 16 Log Step 17 Log Vane 18 *All structures are numbered from upstream to downstream. Structure Location Map `� f1 N 7 � L1 W 2L 71 { C w 3 0 3 9 4 7 a O Morphology/Hydrology Field work for the 2018 "Stream Restoration Annual Monitoring Report" was completed in May and June 2018. All measurements of dimension, pattern, and profile were collected using a Nikon Pulse Laser Station NPL -332. A total of 12 cross sections, a longitudinal profile, and a pattern map were produced from the collected data and analyzed using RIVERMorph Professional 5.1. Select data was also imported into GIS applications for additional analysis and for quality checking the data. The drainage basin of the reach was measured to be 0.081 square miles by GIS applications. Basin topographic relief is 98 feet and stream topographic relief is 26.5 feet. Bankfull discharge of the stream was determined to be between 5.62 CFS and 5.93 CFS using Manning's Roughness and Friction Factor/Relative Roughness, respectively. Dimension Channel geometry was characteristic of a first order perennial stream located in the piedmont of North Carolina consisting of cohesive banks. Of the 12 cross sections collected 5 were located at riffles, 4 were located at glides, one was located at a pool, one was located at a run, and one was listed as being located at other. The cross section listed as "other" is cross section 1 and is in a highly vegetated section with wetland vegetation along both banks. Features relating to a specific bed form were absent and this cross section was not used in the calculation of dimension ratios. The cross section that was used for calculation of roughness and discharge calculation is cross section 9. This cross section is an average representation of the entire reach and is along the lower third but is upstream of the dry detention basin discharge. The stream in the area of the dry detention discharge was armored with boulders to dissipate energy and protect the banks. Downstream of this point the stream is bedrock controlled. The average bankf ill Width to Depth ratio of the riffles is 16.8 with an average width at bank full of 5.39 feet and depth of 0.49 feet. The average flood -prone width area is 10.6 giving an entrenchment ratio of 2.07 which falls between moderately and slightly entrenched. The stream is capable of reaching the floodplain during high flow events. This metric is essential at the South Fork site due to the flashy nature caused from storm water. If there is no access to the floodplain the stream would begin to down -cut from a C -stream to a G -stream and over widen to an F -stream leading to high sediment mobility. Cross section dimension of the riffle sections shows a decrease in bankfull width to depth ratio with bar building occurring along the stream edges and defined streams forming with an inner berm and bankfull bench. XS9 STA 8+31 RIFFLE o XS 9 2018 XS 9 2017 Horizontal Oislanos [ft] A comparison of cross section 9, a riffle, at station 8+31 clearly shows a bar building along the left bankfull indicator, an inner berm, and deepening of the main channel that is creating a low flow area to efficiently transport sediment at a variety of flow conditions. Pattern The pattern of the stream is slightly sinuous exhibiting limited lateral migration due to the highly cohesive, high clay content, banks. Measured channel geometry averages have a linear wavelength of 107 feet, meander length of 125 feet, and a radius of curvature of 17-20 feet. The sinuosity of the reach was calculated by stream length/valley length to be 1.12. This sinuosity is slightly less than that of a typical C -stream. It is likely that future monitoring reports will indicate a belt width becoming wider and sinuosity increasing closer to a 1.2. The dimensionless ratios are appropriate and show little change from the 2017 As -Built report. Profile The channel profile was collected along the thalweg of the stream with an emphasis on collecting points around areas of large elevation changes and constructed grade control structures. Due to the restoration reach beginning at the head of the basin a variety of slopes are displayed ranging from steeper at the upper most section to flatter near the confluence with South Fork Withrow Creek. The upper third of the longitudinal profile exhibits slopes that approximate 4.2-4.5% up to structure number 3 that is immediately upstream of the constructed wetland. Stream slopes through the middle and lower sections of the reach range from 1.3-1.5% to the area of bedrock control that begins immediately downstream of the existing aerial sewer line crossing. Biological Monitoring of biological indices includes the establishment of six, randomly selected, vegetation plots. The vegetation plots are 10 foot X 10 foot squares which are marked by white PVC pipe and orange paint. Live stakes were harvested and planted from existing vegetation during construction along with the planting of 2000 live stakes on December 5 and 6, 2017. Live stake species that were planted included Elderberry, Black Willow, Silky Willow, and Silky Dogwood. There were 500 live stakes planted of each species. In addition to vegetation monitoring Atlas has conducted general surveys for aquatic life including fishes, amphibians, crustaceans, reptiles, and macro -invertebrates over the past year. Vegetation Monitoring Plots Plot 1 Vegetation Stems Per Plot *Elderberry Sambucus canadensis 3 *Black Willow, Silky Willow Salix sp.) 13 Soft Rush Juncus effuses) Observed in plot Sedges Carex Sp.) Observed in plot Dog Fennel Eu atorium ca illi olium Observed in plot Seedbox Ludwi is alterni olia Observed in plot Golden rod (Solida o sp.)) Observed in plot *Live stake species The plot size is 10 Foot X 10 Foot which makes 435.6 plots per acre. After the first year plot one has 16 stems which is equivalent to 6,970 stems per acre. (435.6 * 16 = 6969.6 stems per acre). Vegetation mortality of the live stakes is expected to occur this coming year. Plot 2 Vegetation Stem Per Plot *Elderbe Sambucus canadensis 1 *Black Willow, Silky Willow Salix sp.) 11 *Silky Dogwood Cornus amomum 2 Sedges Carex Sp.) Observed in plot Soft Rush Juncus effuses) Observed in plot Sweet pea Lath rus sp.) Observed in plot Ticktrefoil Desmodium nudi orum Observed in plot *Live stake species The plot size is 10 Foot X 10 Foot which makes 435.6 plots per acre. After the first year plot two has 14 stems which is equivalent to 6,098 stems per acre. (435.6 * 14 = 6098.4 stems per acre). Vegetation mortality of the live stakes is expected to occur this coming year. Plot 3 Vegetation Stem Per Plot *Elderberry Sambucus canadensis 1 *Black Willow, Silky Willow Salix s 9 Sedges Carex Sp.) Observed in plot Sweet pea Lath rus s Observed in plot Soft Rush (Juncus effuses) Observed in plot Deer -Tongue Grass Dichanthelium clandestinum Observed in plot Knotweed (Polygonum sp.) Observed in plot Golden rod Solida o sp.) Observed in plot *Live stake species The plot size is 10 Foot X 10 Foot which makes 435.6 plots per acre. After the first year plot three has 10 stems which is equivalent to 4,356 stems per acre. (435.6 * 10 = 4356 stems per acre). Vegetation mortality of the live stakes is expected to occur this coming year. 10 Plot 4 Vegetation Stem Per Plot *Elderberry Sambucus canadensis 9 *Black Willow, Silky Willow Salix s 5 *Silky Dogwood Cornus amomum 5 Sedges Carex Sp.) Observed in plot Soft Rush (Juncus effuses) Observed in plot Deer -Tongue Grass Dichanthelium clandestinum Observed in plot Knotweed (Polygonum sp.) Observed in plot Golden rod Solida o sp.) Observed in plot *Live stake species The plot size is 10 Foot X 10 Foot which makes 435.6 plots per acre. After the first year plot three has 19 stems which is equivalent to 8,276 stems per acre. (435.6 * 19 = 8276.4 stems per acre). Vegetation mortality of the live stakes is expected to occur this coming year. 11 Plot 5 Vegetation Stem Per Plot *Black Willow, Silky Willow Salix s 12 Sedges Carex Sp.) Observed in plot Soft Rush Juncus effuses) Observed in plot Seedbox Ludwi is alterni olia Observed in plot Do fennel (Eu atorium ca illi olium) Observed in plot Knotweed (Polygonum sp.) Observed in plot Golden rod Solida o s Observed in plot *Live stake species The plot size is 10 Foot X 10 Foot which makes 435.6 plots per acre. After the first year plot three has 12 stems which is equivalent to 5,227 stems per acre. (435.6 * 12 = 5227.2 stems per acre). Vegetation mortality of the live stakes is expected to occur this coming year. 12 Plot 6 Vegetation Stem Per Plot *Elderberry Sambucus canadensis 5 *Black Willow, Silky Willow Salix s 12 *Silky Dogwood Cornus amomum 2 Sedges Carex Sp.) Observed in plot Soft Rush Juncus effuses) Observed in plot Do fennel Eu atorium ca illi olium Observed in plot Ticktrefoil Desmodium s Observed in plot Golden rod Solida o s Observed in plot Wild Mullein Verbascum tha sus Observed in plot *Live stake species The plot size is 10 Foot X 10 Foot which makes 435.6 plots per acre. After the first year plot three has 19 stems which is equivalent to 8,276 stems per acre. (435.6 * 19 = 8276.4 stems per acre). Vegetation mortality of the live stakes is expected to occur this coming year. 13 0 Aquatic Life Survey During the monitoring report fieldwork Atlas staff assessed a variety of riffles and pools throughout the restoration reach in a qualitative effort to assess the rebound of aquatic life for environmental uplift. During the survey all species in the "Observed Aquatic Life" table were visually documented within the restoration reach. There are significantly greater varieties and numbers of macro -invertebrates and fish than what existed prior to restoration. The majority of fish were observed in deep pools along the middle and downstream sections of the restoration reach and appear to be creek chubs. Indicators of higher stream quality (EPT taxa) were observed in higher numbers through the upper third of the reach that receives less flow and where the bed has higher quantities of detritus and shade. The upper section also receives direct inflow of groundwater at cooler temperatures than downstream areas providing for higher dissolved oxygen concentrations. It is expected that the lower reaches will begin to attract higher quality EPT taxa in the future. Reptiles and amphibians have also been observed throughout the entire reach but were not observed during the monitoring report and are denoted in the table with an asterisk. Observed Aquatic Life Species Riffle Beetles Creek Chub Midges Crawfish Crane Flies Stoneflies *Snapping Turtles Mayflies *Northern Water Snake Dragonflies *Various Frogs Damselflies Caddisflies *observed at an earlier date Over the past year Atlas Environmental has surveyed the reach of the stream multiple times and these species have been observed in the riffles and pools. 15 Non -Performing Grade Control Structures November 8, 2017 Rock Cross Vane — Structure 9 The non -preforming grade control structure was observed on November 8, 2017. The structure was washed under and around due to high flow during rain events. The repair was completed by lowering the structure for low flow periods and the bank was stabilized around the structure on November 14, 2017. Log Vane — Structure 12 The non -preforming grade control structure was observed on November 8, 2017. The structure was washed under due to undercutting of the logs. The repair was completed by digging upstream of the structure and wrapping the log in coir matting. Then, folding the matting upstream and covering it up with the streambed material on November 14, 2017. 16 February 27, 2018 Rock Cross Vane — Structure 9 The non -preforming grade control structure was observed on January 4, 2018. The structure was washed under and around due to high flow during rain events. The fix was completed by lowering the structure even more for low flow periods and the bank was stabilized around the structure on February 27, 2018. Log Vane — Structure 12 The non -preforming grade control structure was observed on January 4, 2018. The structure was washed under due to undercutting of the logs. The repair was completed by digging upstream of the structure and wrapping the log in fabric. Then, folding the fabric upstream and covering it up with the streambed material on February 27, 2018. 17 May 8, 2018 Log Step — Structure 17 The non -preforming grade control structure was observed on April 27, 2018. The structure was washed under due to undercutting of the logs during high flow periods. The repair was completed by digging upstream of the structure while adding a log under the existing one and wrapping the log in fabric. Then, folding the fabric upstream and covering it up with the streambed material on May 8, 2018. A coir log was added along the stream bank for stability. Log Vane — Structure 18 (New) This log vane was added below structure 17 to help with grade control. The structure was installed by using sand bags to dam up the stream and setup a pump around zone. Once dry the streambed was removed and a new log was added at the correct height. The log was stabilized with coir matting. Then, folding the matting upstream and covering it up with the streambed material on May 8, 2018. 18 Log Vane — Structure 16 (New) This log vane was added above structure 17 to help with grade control. The structure was installed by using sand bags to dam up the stream and setup a pump around zone. Once dry the streambed was removed and a new log was added at the correct height. The log was stabilized with coir matting. Then, folding the matting upstream and covering it up with the streambed material on May 8, 2018. Rock Cross Vane — Structure 11 The non -preforming grade control structure was observed on April 27, 2018. The structure was washed under due to undercutting of the logs. The fix was completed by digging upstream of the structure and wrapping the log thick black fabric. Then, folding the fabric upstream and covering it up with the streambed material on May 8, 2018. 19 Rock Cross Vane — Structure 15 The non -preforming grade control structure was functioning but need adjustments. Coir matting was adding to the stream edge to force water to flow over the structure. June 4, 2018 Log Vane — Structure 10 The non -preforming grade control structure was observed on June 6, 2018. The structure was washed under due to undercutting of the logs. The repair was completed by digging upstream of the structure and wrapping the log in fabric. Then, folding the fabric upstream and covering it up with the streambed material on June 7, 2018. all Log Vane — Structure 14 The non -preforming grade control structure was observed on June 6, 2018. The structure was washed under due to undercutting of the logs. The repair was completed by digging upstream of the structure and wrapping the log in fabric. Then, folding the fabric upstream and covering it up with the streambed material on June 7, 2018. June 18, 2018 Log Vane — Structure 16 Structure 16 is a non -preforming grade control structure. After installation repairs to this structure have included adding a coir log and thicker fabric in upstream of the structure to prevent the stream bed from undercutting under the log. The black fabric was nailed to the log then buried under the stream bed upstream for approximately 8 feet. A "V" notch was cut into the center of the log to allow base flow to flow over the log during normal flow instead of around or under the structure. This fixes have allowed structure 16 to remain stable since the last adjustments. 21 Rock Cross Vane — Structure 15 The non -preforming grade control structure was undercutting the rock structure. Coir matting was adding to the stream edge to force water to flow over the structure. Installation repairs to this structure have included adding a coir log and thicker fabric upstream of the structure to prevent the stream bed from undercutting under the rock structure and to direct flow to the middle of the structure. Log Vane — Structure 18 After installation repairs to this structure have included adding a coir log and thicker fabric upstream of the structure to prevent the stream bed from undercutting under the log. The black fabric was nailed to the log then buried under the stream bed upstream for approximately 8 feet. A "V" notch was cut into the center of the log to allow base flow to flow over the log during normal flow instead of around or under the structure. 22 Conclusion The extent of the stream restoration project at South Fork Business Park appears to be in good and stable condition. Changes have been observed between the 2017 As -Built Report and the 2018 Annual Monitoring Report that are indicating creation of a more defined stream. Observed changes through the restoration reach include bar building and creation of inner berms as a result of large, relatively short duration, storm events. These changes narrow the channel for low flow periods and allow for more efficient sediment transport during both high and low flow periods from down welling along the point bars. The constructed wetland between cross sections 3 and 4 dramatically reduces the immediate impact of storm events on the restoration reach. The wetland is now vegetated with thick wetland herbs and the live stakes. The Willows have had an especially high survival rate. The additional storage and limited discharge of treated storm water are essential for the health and stability of the system downstream. Select banks and log steps are becoming undercut due to pool development. These features provide great habitat and refuge from both high flow events and predators. Raccoon prints have been observed along the entire reach specifically located around the large pools. Observed fish typically range from one inch up to four inches and are located in large pools from the wetland to the confluence with South Fork Withrow Creek. Indicators of incision, such as a low bank above a bankfull indicator, have not been observed. Predicted changes from 2018 to 2019 would be for cross section 3, downstream to the large j -hook to become narrower and experience bar building events along the right bank. The channel is currently U-shaped with very shallow water which is causing slight deposition and bank water. This area was constructed with a wide W/D ratio to handle the large flows from the wetland. However, a slight narrowing of the channel may prevent emergence of wetland vegetation. Due to site conditions multiple bankfull discharge have been observed on various occasions in the last year. The high frequency of bankfull discharges lead to structures in the lower reach not preforming as designed and required the addition of two log steps. These steps were placed above and below the last structure that was proposed in the restoration plan. The addition of the two log steps reduced the elevation change per step and will minimize future chances of being undercut in the future. Log step installation procedures were also amended to include a low flow notch in the log for pool development and sediment transport, a coir log buried upstream of the step for added re -enforcement, and installation of thick matting nailed to the structure and buried upstream of the structure to prevent downcutting of the stream bed. 23 Photograph Log 24 Construction Photographs Construction Photo Structure 1: Installation 44W Structure 2: Installation Filling of historic sediment basin &Arn Structure 1: After Installation Structure 2: After Installation Filling of historic sediment basin 25 Construction Photographs Looking Upstream from structure 6 Structure 6: After Installation Aqua Swirl to drainage pipe Drainage pipe to wetland Wetland looking upstream Structure 5: Below wetland 26 Construction Photographs Structure 5: Looking downstream Below Structure 6: Northern water snake Grading stream to elevation Structure 6: Looking downstream Common snapping turtle Grading stream to elevation 27 As Built Photographs As -Built Photo I it z JL A.A 28 2018 Monitoring Photographs 2018 Monitoring xSi XS 2 xSl A.� T � ' meN.4 XS 3 XS 2 XS 3 30 2018 Monitoring Photographs XS 4 XS 5 m � ` XS 4 31 3 3An . d::. +� _ 1"S A i - yr_ fir` '�' 1 � ,r•_ �" _ { ti'' ,�, •mow _ : � .zl':;r:r.-,� ar- - .1 i �z}S 1..�, `'•. va . tom. [4�;.'-5-... .. ]' � 3 3An . d::. +� _ 2018 Monitoring Photographs 9r"• F �; �� . t .yin'• 'aA! XS 10 XS 11 � •rig= XS 10 XS 12 .. f F XS 11 XS 12 33 Upper reach overview 2018 Monitoring Photographs � M 1r 4* Channel bed development ....[. 4s Constructed wetland stability Mid -reach overview Thick vegetation around channel Lower -reach overview 34 2018 Monitoring Photographs .#r Stream at dry -detention outfall Vegetation plots Pool development 8 Fish approx. 2" in length in deep pool Vegetation surveys 35 NC SAM Evaluations W Draft INC SAM Stream Rating Sheet Accompanies User Manulal Version 2.1 Stream Site Name South Fork Business Date of Assessment 81912016 Stream Category Pb2 Assessor Name/Organization Atlas Environmental Inc Notes of Field Assessment Form (YIN) YES Presence of regulatory considerations (YIN) NO Additional stream informationlsupplementary measurements included (YIN) NO NC SAAR feature type (perennial, intermittent, Tidal Marsh Stream) Perennial (1) Habitat USACEI NCDWR Function Class Rating Summary All Streams Intermittent (1) Hydrology LOW (2) Baseflow MEDIUM (2) Flood Flow LOW (3) Streamside Area Attenuation LOW (4) Floodplain Access HIGH (4) Wooded Riparian Buffer LOW (4) Microtopography NA (3) Stream Stability LOW (4) Channel Stability MEDIUM (4) Sediment Transport LOW (4) Stream Geomorphology MEDIUM {2) Streamllntertidal Zone Interaction NA (2) Longitudinal Tidal Flow NA (2) Tidal Marsh Stream Stability NA (3) Tidal Marsh Channel Stability NA (3) Tidal Marsh Stream Geomorphology NA (1) Water Quality LOW (2) Baseflow MEDIUM (2) Streamside Area Vegetation MEDIUM (3) Upland Pollutant Filtration MEDIUM {3) Thermoregulation MEDIUM (2) Indicators of Stressors YES (2)Aquatic Life Tolerance MEDIUM (2) Intertidal Zone Filtration NA (1) Habitat LOW (2) In -stream Habitat LOW (3) Baseflow MEDIUM {3) Substrate LOW {3) Stream Stability MEDIUM (3) In -stream Habitat LOW (2) Stream -side Habitat MEDIUM (3) Stream -side Habitat MEDIUM (3) Thermoregulation MEDIUM (2) Tidal Marsh In -stream Habitat NA (3) Flaw Restriction NA (3) Tidal Marsh Stream Stability NA (4) Tidal Marsh Channel Stability NA (4) Tidal Marsh Stream Geomorphology NA (3) Tidal Marsh In -stream Habitat NA (2) Intertidal Zone NA Overall LOW 37 Draft INC SAM Stream Rating Sheet Accompanies User Manual Ver'Sion 2.1 Stream Site Name South Fork Business Date of Assessment July 12 2017 Stream Category Pa2 Assessor Name/Organizaticn Atlas Environmental Inc Notes of Field Assessment Form (YfN) YES Presence of regulatory considerations (WN) NO Additional stream information)supplementary measurements included (YfN) NO NC SAM feature type (perennial, intermittent, Tidal Marsh Stream) Perennial (1) Habitat USAGE( NCDWR Function Class Rating Summary All Streams Intermittent (1) Hydrology HIGH (2) Baseflow HIGH (2) Flood Flow HIGH (3) Streamside Area Attenuation HIGH (4) Floodplain Access HIGH (4) Wooded Riparian Buffer MEDIUM (4) Microtopography LOW (3) Stream Stability HIGH (4) Channel Stability HIGH (4) Sediment Transport LOW (4) Stream Geomorphology HIGH (2) Stream/Intertidal Zone Interaction NA (2) Longitudinal Tidal Flow NA (2) Tidal Marsh Stream Stability NA (3) Tidal Marsh Channel Stability NA (3) Tidal Marsh Stream Geomorphology NA (1) Water Ouality MEDIUM (2) Baseflow HIGH (2) Streamside Area Vegetation MEDIUM (3) Upland Pollutant Filtration MEDIUM (3) Thermoregulation MEDIUM (2) Indicators of Stressors NO (2)Aquatic Life Tolerance MEDIUM (2) Intertidal Zone Filtration NA (1) Habitat LOW (2) In -stream Habitat LOW (3) Baseflow HIGH (3) Substrate LOW (3) Stream Stability HIGH (3) In -stream Habitat LOW (2) Stream -side Habitat MEDIUM (3) Stream -side Habitat MEDIUM (3) Thermoregulation MEDIUM (2) Tidal Marsh In -stream Habitat NA (3) Flow Restriction NA (3) Tidal Marsh Stream Stability NA (4) Tidal Marsh Channel Stability NA (4) Tidal Marsh Stream Geomorphology NA (3) Tidal Marsh In -stream Habitat NA (2) Intertidal Zone NA Overall MEDIUM Draft INC SAM Stream Rating Sheet Accompanies User Manulal Version 2.1 Stream Site Name South Fork Business date of Assessment June 21, 2418 Stream Category Pb2 Assessor NamelQrganization Jennifer Robertson Atlas Environmental Notes of Field Assessment Form (YIN) NO Presence of regulatory considerations (YIN) NO Additional stream informationlsupplementary measurements included (YIN) NO NC $AM feature type (perennial, intermittent, Tidal Marsh Stream) Perennial (1) Water Qua lity USACEI NCDWR Function Class Rating Summary All Streams Intermittent (1) Hydrology MEDIUM (2) Baseflow HIGH (2) Flood Flow MEDIUM {3) Streamside Area Attenuation LOW (4) Floodplain Access HIGH (d) Wooded Riparian Buffer LOW (4) Microtopography NA (3) Stream Stability HIGH (4) Channel Stability HIGH (d) Sediment Transport MEDIUM (4) Stream Geomorpholegy HIGH (2) Streamllntertidal Zone Interaction NA (2) Longitudinal Tidal Flow NA (2) Tidal Marsh Stream Stability NA (3) Tidal Marsh Channel Stability NA (3) Tidal Marsh Stream Geomarphology NA (1) Water Qua lity HIGH (2) Baseflow HIGH (2) Streamside Area Vegetation HIGH (3) Upland Pollutant Filtration HIGH (3) Thermoregulation MEDIUM (2)Indicators of Stressors NG (2) Aquatic Life Tolerance HIGH (2) Intertidal Zane Filtration NA (1) Habitat LOW (2) In -stream Habitat LOW (3) Baseflow HIGH (3) Substrate MEDIUM (3) Stream Stability HIGH (3) In -stream Habitat LOW Pr (2) Stream -side Habitat MEDIUM (3) Stream -side Habitat MEDIUM (3) Thermoregulation MEDIUM (2) Tidal Marsh In -stream Habitat NA (3) Flow Restriction NA (3) Tidal Marsh Stream Stability NA (4) Tidal Marsh Channel Stability NA (4) Tidal Marsh Stream Geomorphology NA (3) Tidal Marsh In -stream Habitat NA (2) Intertidal Zone NA Overall MEDIUM Pattern and Structure Locations 40 U D I 3 U CL Ln Ln j`(D [_T 0� 41 O ]0� � ❑f 1 p N Q � U D I 3 U CL Ln Ln j`(D [_T 0� 41 Longitudinal Profile 42 LTJ Elevation (ft) 43 RIVERMORPH PROFILE SUMMARY River Name: UT to south Fork Withrow Creek Reach Name: 2018 Monitoring Profile Name: Lang Pro survey Date: 06/06/2018 Survey Data DIST CH WS 6KF P1 P2 P3 P4 ---------------------------------------------------------------------- 0 756.5 0 756.86 8.042 756.68 756.8 9.667 755.72 755.8 33.591 754.48 754.6 754.78 35.636 754.22 754.3 44.589 754.24 754.3 47.837 753.06 753.2 66.965 752.22 752.35 67.133 752.38 86.513 751.8 751.9 88.363 750.78 89.273 751.3 101.584 751.02 751.28 102.671 749.94 750.2 103.149 750.1 117.02 750.38 750.45 118.407 748.48 119.957 749.12 130.582 749.4 749.56 749.8 133.854 749.34 141.588 749.28 749.41 145.485 748.08 145.872 748.24 164.229 747.82 164.229 748.02 184.58 747.6 206.91 747.44 212.912 747.26 747.35 213.882 746.58 214.652 746.7 215.402 745.12 232.925 745.76 234.089 745.52 746 746.21 245.61 745.8 249.669 745.3 272.545 745.7 282.827 745.74 283.766 745.52 291.388 744.92 291.907 745.52 310.237 744.96 311.095 745.52 334.479 745.52 334.564 745.38 339.565 742.44 339.565 744.08 340.592 742.34 744.2 745.34 354.269 743.84 44 371.827 744.38 391.772 744.06 397.214 742.66 400.223 743.96 419.868 743.76 420.665 744.04 431.917 743.74 743.9 744.03 451.22 743.84 451.682 743.46 470.398 743.84 471.408 743.5 499.594 743.2 500.128 742.78 518.524 742.5 528.466 742.78 743.02 743.25 546.838 742.34 548.228 742.8 594.406 741.98 595.146 742.3 597.155 740.7 598.026 742.02 608.717 741.54 625.653 741.48 626.188 741.66 629.468 741.48 741.68 741.95 641.211 741.2 664.57 741.04 664.57 741.58 689.411 741.2 689.411 741.44 690.979 738.76 692.213 739.98 700.885 739.96 701.92 739.06 730.265 739.62 730.945 739.66 739.98 740.29 731.088 739.54 741.742 739.96 742.344 739.68 743.633 737.8 745.041 739.32 766.891 739.12 767.926 738.72 782.679 738.5 793.833 738.66 795.413 737.78 805.862 738.5 813.964 738.5 815.197 738.16 831.208 738.4 738.68 739.11 840.734 737.8 841.34 738.02 868.388 737.56 869.09 737.26 885.463 737.16 885.463 737.36 897.969 737.1 898.849 737.34 899.163 736.78 901.417 735.54 919.173 736.2 920.032 736.7 932.149 736.56 736.65 737.59 939.075 736.28 939.965 736.66 940.52 734.22 943.914 735.72 45 958.31 735.5 958.967 735.74 973.23 735.16 988.324 734.64 989.321 735.4 1003.22 734.98 1003.705 735.46 1004.98 734.58 1006.155 732.32 1018.929 734.62 1019.706 734.08 1026.807 734.02 1029.185 734.6 1029.812 732.76 1031.765 734.3 1035.686 734.1 734.32 734.78 1053.746 733.42 1065.478 733.36 1066.325 733.68 1081.655 733.24 1096.606 733.46 733.78 734.66 1111.955 733.2 1115.593 733 Gross section / Bank Profile Locations Name Type Profile station ---------------------------------------------------------------------- xS 1 other XS 33.6 XS 2 Glide xs 130.6 XS 3 Glide xs 234 xs 4 Pool xs 340.6 XS 5 Riffle xs 431.9 xs 6 Riffle xs 528.5 xS 7 Run XS 629.5 XS 8 Glide xs 731 XS 9 Riffle XS 831.2 XS 11 Riffle XS 1035.7 x512 Riffle xs 1096.6 XS 10 Glide XS 932.149 Measurements from Graph Bankfull slope: 0 Variable Min Avg Max ---------------------------------------------------------------------- s riffle 0.00983 0.01246 0.01411 S pool 0.00041 0.00167 0.00306 S run 0.01858 0.02905 0.04162 S glide 0.00755 0.00991 0.01228 S step 0 0 0 P - P 37.69 98.87 193.36 Pool length 20.48 39.74 52.44 Riffle length 43.42 59.26 74.56 Dmax riffle 0.81 0.95 1.07 Dmax pool 1.49 2.12 2.83 Dmax run 0.36 0.52 0.94 Dmax glide 0.45 0.70 0.87 Dmax step 0 0 0 Low bank ht 0 0 0 Length and depth measurements in feet, slopes in ft/ft. RIVERMORPH PROFILE SUMMARY 46 Notes River Name: UT to south Fork Withrow creek Reach Name: 2018 monitoring Profile Name: Lang Pro survey Date: 06/06/2018 DIST Nate 0 REW 33.591 X51 - TW Intersect @ station 33.591 67.133 REW 89.273 REW 103.149 REW 119.957 REW 130.582 X52 - TW Intersect @ station 130.582 145.872 REW 164.229 REW 214.652 REW 234.089 X53 - TW Intersect station 234.089 245.61 REW 282.827 REW 291.907 REW 311.095 REW 334.479 REW 339.565 REW 340.592 X54 - TW Intersect @ station 340.592 371.827 REW 400.223 REW 420.665 REW 431.917 X55 - TW Intersect @ station 431.917 451.22 REW 470.398 REW 499.594 REW 528.466 X56 - TW Intersect @ station 528.466 548.228 REW 595.146 REW 598.026 REW 626.188 REW 629.468 X57 - TW Intersect @ station 629.468 664.57 REW 689.411 REW 692.213 REW 700.885 REW 730.945 X58 - TW Intersect @ station 730.945 731.088 X58TW - TW Intersect @ station 731.088 741.742 REW 745.041 REW 766.891 REW 793.833 REW 805.862 REW 813.964 REW 831.208 X59 - TW Intersect @ station 831.208 841.34 REW 868.388 REW 885.463 REW 898.849 REW 899.163 REW 920.032 REW 932.149 X510 - TW Intersect @ station 932.149 939.965 REW 943.914 REW 958.967 REW 47 989.321 REW 1003.705 REW 1004.98 REW 1018.929 REW 1029.185 REW 1031.765 REW 1035.686 x511 - Tw Intersect @ station 1035.686 1066.325 REW 1096.606 x512 - Tw Intersect @ station 1096.606 1111.955 REW 48 Cross -Sections 49 XS1 STA 0+33 OTHER o c�.,e �9��� • 9enku�� I�k� • Wei, s��� Po��� Nbkr - 9.96 I; bkT - 2 RGk1 - 1 9i Horizontal Distance (ft) 50 RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow Creek Reach Name: 2018 Monitoring Cross section Name: xS 1 Survey Date: 06/05/2018 ---------------------------------------------------------------------- Cross section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0.04 0 755.44 LP BTM 2.33 0 755.22 754.78 5.46 0 754.96 ----- 8.37 0 754.62 4.99 9.68 0 754.56 LEW 12.82 0 754.48 TW 15.79 0 754.6 REW 16.98 0 754.78 BKF 19.07 0 754.92 1.06 21.03 0 755.3 5.29 22.35 0 755.38 RP BTM ---------------------------------------------------------------------- Cross sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left Side Right Side slope 0.051 0 0 shear stress (lb/sq ft) 0.64 Movable Particle (mm) 109.0 51 channel Left Right Floodprone Elevation (ft) 755.08 755.08 755.08 Bankfull Elevation (ft) 754.78 754.78 754.78 Floodprone Width (ft) 15.88 ----- ----- Bankfull Width (ft) 9.98 4.99 4.99 Entrenchment Ratio 1.59 ----- ----- Mean Depth (ft) 0.2 0.19 0.21 Maximum De th (ft) 0.3 0.28 0.3 Width/Depth Ratio 49.9 26.64 23.76 Bankfull Area (sq ft) 1.99 0.93 1.06 Wetted Perimeter (ft) 10.01 5.28 5.29 Hydraulic Radius (ft) 0.2 0.18 0.2 Begin BKF Station 7 7 11.99 End BKF Station 16.98 11.99 16.98 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left Side Right Side slope 0.051 0 0 shear stress (lb/sq ft) 0.64 Movable Particle (mm) 109.0 51 X52 STA 1+30 GLIDE Ocmv,a poms •��M�I� • We�,s���Po�s AbRf 53 Horizontal Distance (ft) 52 RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow creek Reach Name: 2018 Monitoring cross section Name: XS 2 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0.18 0 750.66 LP BTM 5.25 0 750.22 749.8 9.19 0 749.98 ----- 11.58 0 749.78 BKF 11.91 0 749.58 LEW 12.24 0 749.48 0.23 12.66 0 749.4 TW 13.21 0 749.56 REW 13.87 0 749.82 BKF 15.34 0 750.14 1.69 19.47 0 750.68 0.17 21.76 0 751.02 RP BTM ---------------------------------------------------------------------- Cross sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side Slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 53 channel Left Right Floodprone Elevation (ft) 750.2 750.2 750.2 Bankfull Elevation (ft) 749.8 749.8 749.8 Floodprone width (ft) 10.22 ----- ----- Bankfull width (ft) 2.48 1.24 1.24 Entrenchment Ratio 4.12 ----- ----- Mean Depth (ft) 0.21 0.2 0.23 Maximum De th (ft) 0.4 0.38 0.4 width/Depth Ratio 11.81 6.12 5.39 Bankfull Area (sq ft) 0.53 0.25 0.28 Wetted Perimeter (ft) 2.63 1.7 1.69 Hydraulic Radius (ft) 0.2 0.15 0.17 Begin BKF station 11.34 11.34 12.58 End BKF Station 13.82 12.58 13.82 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side Slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 53 X53 STA 2+34 GLIDE Ocmv,a pom�s •��M��� I� • W,3�,S���Po���6 AbRf - 9.5 Horizontal Distance (ft) 54 RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow creek Reach Name: 2018 Monitoring cross section Name: x5 3 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0.06 0 748.1 LP btm 1.01 0 746.8 746.21 1.59 0 746.3 BKF 2.23 0 745.9 LEW 4.26 0 745.68 ----- 7.86 0 745.52 TW 10.63 0 746 REW 11.42 0 746.12 BKF 13.53 0 746.86 2.14 15.36 0 748.2 RP btm ---------------------------------------------------------------------- cross Sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment Calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 55 channel Left Right Floodprone Elevation (ft) 746.9 746.9 746.9 Bankfull Elevation (ft) 746.21 746.21 746.21 Floodprone width (ft) 12.65 ----- ----- Bankfull width (ft) 9.94 4.98 4.97 Entrenchment Ratio 1.27 ----- ----- Mean Depth (ft) 0.45 0.47 0.43 Maximum De th (ft) 0.69 0.64 0.69 width/Depth Ratio 22.09 10.49 11.56 Bankfull Area (sq ft) 4.5 2.36 2.14 Wetted Perimeter (ft) 10.11 5.72 5.67 Hydraulic Radius (ft) 0.45 0.41 0.38 Begin BKF Station 1.73 1.73 6.71 End BKF station 11.68 6.71 11.68 ---------------------------------------------------------------------- Entrainment Calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 55 X54 STA 3+40 POOL Ocmv,a pom�s •��M��� �� • W,3�a,s���Po��� Anxl - 15.5 Horizontal Distance (ft) M RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow creek Reach Name: 2018 Monitoring cross section Name: XS 4 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE 0.03 { 1.69 { 4.38 { 5.86 { 5.87 { 6.56 { 7.41 { 8.8 { 10.34 { 11.43 { 11.92 { 12.31 { 13.87 { 15.05 { 15.77 { :S ELEV NOTE ------------------------------------------------------- 746.78 LP BTM r 746.14 748.34 i 745.8 748.34 i 745.34 BKF 1 744.14 LEW 1 743.56 15.74 1 743.54 ----- 1 742.52 7.41 1 742.34 TW r 742.92 2.13 i 743.24 ----- 1 744.2 REW 1 746.06 2.04 1 747.18 3 1 747.28 RP BTM ---------------------------------------------------------------------- Cross sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 57 channel Left Right Floodprone Elevation (ft) 748.34 748.34 748.34 Bankfull Elevation (ft) 745.34 745.34 745.34 Floodprone width (ft) 15.74 ----- ----- Bankfull width (ft) 7.41 3.7 3.71 Entrenchment Ratio 2.13 ----- ----- Mean Depth (ft) 2.09 2.15 2.04 Maximum De th (ft) 3 2.91 3 width/Depth Ratio 3.55 1.72 1.82 Bankfull Area (sq ft) 15.49 7.94 7.54 wetted Perimeter (ft) 10.57 8.35 8.04 Hydraulic Radius (ft) 1.47 0.95 0.94 Begin BKF Station 5.86 5.86 9.56 End BKF Station 13.27 9.56 13.27 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 57 XS5 STA 4+31 RIFFLE o c�.,e Pomp • 9anku�� I�k� • W„m, s�na� rmmis WLk' - .. I�➢k' - 16 .4➢kI - .9tl Horizontal Distance (ft) 58 RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow creek Reach Name: 2018 Monitoring cross section Name: XS 5 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0.23 0 745.66 LP BTM 3.44 0 745.32 744.03 4.5 0 744.7 ----- 6.1 0 744.18 1.54 7.66 0 744 BKF 7.87 0 743.86 LEW 8.32 0 743.74 0.27 9.08 0 743.76 TW 9.46 0 743.9 REW 10.71 0 744.06 BKF 12.97 0 744.34 0.1 17.25 0 745.18 8.94 19.92 0 745.64 RP BTM ---------------------------------------------------------------------- cross Sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 59 channel Left Right Floodprone Elevation (ft) 744.32 744.32 744.32 Bankfull Elevation (ft) 744.03 744.03 744.03 Floodprone Width (ft) 7.14 ----- ----- Bankfull Width (ft) 3.08 1.54 1.54 Entrenchment Ratio 2.32 ----- ----- Mean Depth (ft) 0.16 0.2 0.12 Maximum De th (ft) 0.29 0.29 0.27 Width/Depth Ratio 19.25 7.82 12.83 Bankfull Area (sq ft) 0.48 0.3 0.18 Wetted Perimeter (ft) 3.17 1.87 1.84 Hydraulic Radius (ft) 0.15 0.16 0.1 Begin BKF Station 7.4 7.4 8.94 End BKF Station 10.48 8.94 10.48 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 59 XS6 STA 5+28 RIFFLE Ocmv,a pom�s •��M��� I� • We�,s���Po��� WLk: - // I�➢k: - %1 A➢kI - -1 Horizontal Distance (ft) ' RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow creek Reach Name: 2018 Monitoring cross section Name: XS 6 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0.07 0 744.32 LP BTM 2.1 0 743.32 743.25 5.53 0 743.12 BKF 6.12 0 743.08 LEW 6.8 0 742.9 ----- 7.77 0 742.98 0.29 8.35 0 743.08 0.47 8.4 0 743.02 12.45 9.37 0 742.78 TW 10.08 0 743.02 REW 10.77 0 743.38 BKF 12.94 0 744 6.91 17.24 0 744.42 RP BTM ---------------------------------------------------------------------- cross sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 61 channel Left Right Floodprone Elevation (ft) 743.72 743.72 743.72 Bankfull Elevation (ft) 743.25 743.25 743.25 Floodprone Width (ft) 10.67 ----- ----- Bankfull Width (ft) 7.22 3.61 3.61 Entrenchment Ratio 1.48 ----- ----- Mean Depth (ft) 0.21 0.12 0.29 Maximum De th (ft) 0.47 0.35 0.47 Width/Depth Ratio 34.38 29.07 12.45 Bankfull Area (sq ft) 1.49 0.45 1.04 Wetted Perimeter (ft) 7.41 3.98 4.12 Hydraulic Radius (ft) 0.2 0.11 0.25 Begin BKF Station 3.3 3.3 6.91 End BKF station 10.52 6.91 10.52 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 61 XS7 STA 6+29 RUN o c�.,e Pomp • 9anku�� I� • wem, s�na� rmmis .4Lkf - .62 Horizontal Distance (ft) 62 RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow creek Reach Name: 2018 Monitoring cross section Name: XS 7 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0.43 0 743.38 LP BTM 2.66 0 742.78 741.95 4.01 0 742.46 ----- 5.22 0 741.94 BKF 6.45 0 741.62 LEW 6.76 0 741.48 TW 7.19 0 741.54 TW 7.53 0 741.68 REW 8.93 0 741.96 BKF 12.14 0 742.2 2.33 15.74 0 742.76 0.16 18.32 0 743.02 RP BTM ---------------------------------------------------------------------- Cross sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side Slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 63 channel Left Right Floodprone Elevation (ft) 742.42 742.42 742.42 Bankfull Elevation (ft) 741.95 741.95 741.95 Floodprone width (ft) 9.45 ----- ----- Bankfull width (ft) 3.68 1.84 1.84 Entrenchment Ratio 2.57 ----- ----- Mean Depth (ft) 0.22 0.25 0.2 Maximum De th (ft) 0.47 0.47 0.43 width/Depth Ratio 16.73 7.38 9.2 Bankfull Area (sq ft) 0.82 0.46 0.36 Wetted Perimeter (ft) 3.82 2.35 2.33 Hydraulic Radius (ft) 0.22 0.2 0.16 Begin BKF Station 5.2 5.2 7.04 End BKF Station 8.88 7.04 8.88 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side Slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 63 X58 STA 7+30 GLIDE o c�.,e Pomp • ea�M��� �� • wem, s�na� Pomp AbKf - 1.31 Horizontal Distance (ft) 64 RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow creek Reach Name: 2018 Monitoring cross section Name: x5 8 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0.39 0 741.48 LP BTM 2.18 0 741.06 740.29 3.84 0 740.2 BKF 4.28 0 739.94 LEW 4.72 0 739.66 ----- 6.14 0 739.74 0.4 6.29 0 739.98 REW 7.11 0 740.38 BKF 9.63 0 741.2 0.64 12.51 0 741.54 2.43 14.32 0 741.88 RP BTM ---------------------------------------------------------------------- cross sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 65 channel Left Right Floodprone Elevation (ft) 740.92 740.92 740.92 Bankfull Elevation (ft) 740.29 740.29 740.29 Floodprone Width (ft) 6.32 ----- ----- Bankfull Width (ft) 3.26 1.63 1.63 Entrenchment Ratio 1.94 ----- ----- Mean Depth (ft) 0.41 0.41 0.4 Maximum Depth (ft) 0.63 0.63 0.6 Width/Depth Ratio 7.95 3.94 4.07 Bankfull Area (sq ft) 1.32 0.68 0.64 Wetted Perimeter (ft) 3.64 2.41 2.43 Hydraulic Radius (ft) 0.36 0.28 0.27 Begin BKF station 3.67 3.67 5.3 End BKF station 6.93 5.3 6.93 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 65 XS9 STA 8+31 RIFFLE Ocmv,a pom�s •Oe�M��� I� • We�,s���Po��� AbKf - 2.C6 Horizontal Distance (ft) M. RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow creek Reach Name: 2018 Monitoring cross section Name: XS 9 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE 0.31 { 2.66 { 5.76 { 7.73 { 8.15 { 8.79 { 9.67 { 10.6 { 11.32 { 12.38 { 12.69 { 12.78 { 13.28 { 16.3 { 20.08 { :S ELEV NOTE ------------------------------------------------------- 740.14 LP BTM r 739.68 739.82 i 739.18 739.82 i 739.26 BKF 1 738.84 739.11 1 738.82 14.1 1 739.06 IB 1 738.7 LEW 1 738.48 2.94 r 738.48 2.4 i 738.4 TW i 738.68 REW 1 738.96 BKF 1 739.9 0.71 1 740.22 RP BTM ---------------------------------------------------------------------- Cross sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 67 channel Left Right Floodprone Elevation (ft) 739.82 739.82 739.82 Bankfull Elevation (ft) 739.11 739.11 739.11 Floodprone width (ft) 14.1 ----- ----- Bankfull width (ft) 5.88 2.94 2.94 Entrenchment Ratio 2.4 ----- ----- Mean Depth (ft) 0.35 0.23 0.47 Maximum De th (ft) 0.71 0.48 0.71 width/Depth Ratio 16.8 12.77 6.26 Bankfull Area (sq ft) 2.06 0.68 1.38 wetted Perimeter (ft) 6.44 3.64 3.75 Hydraulic Radius (ft) 0.32 0.19 0.37 Begin BKF Station 7.88 7.88 10.82 End BKF Station 13.76 10.82 13.76 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 67 XS10 STA 9+32 GLIDE O Gmintl Poinlc ♦ 9enMull Irtliralas � W e[er Suilece Poinlc WLk: - !.V! I'➢�' - fl A➢kI - 3.31 Horizontal Distance (ft) 941 RIVERMORPH CROSS SECTION SUMMARY River Name: UT to south Fork Withrow creek Reach Name: 2018 Monitoring cross section Name: x5 10 Survey Date: 06/07/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0.02 0 738.52 LP BTM 1.3 0 737.96 737.59 2.88 0 737.62 BKF 3.01 0 737.16 LEW 3.84 0 736.58 ----- 4.74 0 736.56 TW 6.1 0 736.86 0.8 6.34 0 737.12 REW 8.06 0 737.56 BKF 11.09 0 737.86 3.57 12.67 0 738.36 LP BTM ---------------------------------------------------------------------- cross sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) WE channel Left Right Floodprone Elevation (ft) 738.62 738.62 738.62 Bankfull Elevation (ft) 737.59 737.59 737.59 Floodprone Width (ft) 12.65 ----- ----- Bankfull Width (ft) 5.47 2.88 2.59 Entrenchment Ratio 2.31 ----- ----- Mean Depth (ft) 0.61 0.86 0.32 Maximum Depth (ft) 1.03 1.03 0.8 Width/Depth Ratio 8.97 3.34 8.09 Bankfull Area (sq ft) 3.32 2.49 0.83 Wetted Perimeter (ft) 6.19 4.22 3.57 Hydraulic Radius (ft) 0.54 0.59 0.23 Begin BKF station 2.89 2.89 5.77 End BKF station 8.36 5.77 8.36 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) WE XS11 STA 10+35 RIFFLE o c�.,e Pomp • 9anku�� I� • wem, s�na� rmmis .4Lkf Horizontal Distance (ft) 70 :��*��:gar•�:iJ:r�:z•����xw��•l��n►►i►�r_�:a� River Name: UT to south Fork withrow creek Reach Name: 2018 Monitoring cross section Name: x5 11 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation: Channel 0 ft Right Backsight Rod Reading: 0 ft 735.22 TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0.09 0 737.18 LP BTM 1.22 0 736.88 1.13 2.35 0 736.46 ----- 4.16 0 735.94 0.44 4.95 0 735.38 0.56 6.84 0 734.6 BKF 6.92 0 734.28 LEw 7.18 0 734.1 TW 7.74 0 734.1 0.26 8.26 0 734.14 7.63 8.51 0 734.32 REw 8.99 0 734.96 BKF 10.4 0 735.34 12.43 0 735.62 13.98 0 736.3 15.04 0 736.48 16.46 0 737.4 RP BTM ---------------------------------------------------------------------- cross sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment Calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields Curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 71 Channel Left Right Floodprone Elevation (ft) 735.22 735.22 735.22 Bankfull Elevation (ft) 734.66 734.66 734.66 Floodprone width (ft) 4.62 ----- ----- Bankfull width (ft) 2.07 0.94 1.13 Entrenchment Ratio 2.23 ----- ----- Mean Depth (ft) 0.43 0.42 0.44 Maximum De th (ft) 0.56 0.56 0.56 width/Depth Ratio 4.81 2.22 2.57 Bankfull Area (sq ft) 0.89 0.4 0.49 wetted Perimeter (ft) 2.62 1.81 1.92 Hydraulic Radius (ft) 0.34 0.22 0.26 Begin BKF station 6.69 6.69 7.63 End BKF station 8.76 7.63 8.76 ---------------------------------------------------------------------- Entrainment Calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields Curve channel Left side Right side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 71 XS12 STA 10+96 RIFFLE Ocmv,a pom�s •��M��� I� • W„�a,s���Po��� AbKf - ],31 Horizontal Distance (ft) 72 River Name: UT to South Fork Withrow creek Reach Name: 2018 Monitoring Cross section Name: XS12 Survey Date: 06/06/2018 ---------------------------------------------------------------------- Cross section Data Entry BM Elevation: 0 ft Backsight Rod Reading: 0 ft TAPE 0.05 { 1.38 { 1.99 { 3.49 { 4.76 { 5.64 { 6.21 { 7.27 { 7.77 { 8.54 { 9.23 { 10.54 { 11.38 { 12.97 { 14.94 { 16.66 { 18.1 { 19.72 { S ELEV NOTE ------------------------------------------------------- 736.86 LP BTM } 736.9 735.86 } 735.78 735.86 } 735.56 734.66 } 733.74 LEW } 733.6 14.14 } 733.46 TW } 733.76 8.85 } 734.02 4.43 } 733.74 1.6 } 733.66 ----- } 733.68 0.83 } 733.78 REW } 734.66 BKF } 735.18 1 } 736.2 10.66 } 736.56 5.68 } 736.8 RP BTM ---------------------------------------------------------------------- Cross Sectional Geometry ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right Side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 73 channel Left Right Floodprone Elevation (ft) 735.86 735.86 735.86 Bankfull Elevation (ft) 734.66 734.66 734.66 Floodprone width (ft) 14.14 ----- ----- Bankfull width (ft) 8.85 4.42 4.43 Entrenchment Ratio 1.6 ----- ----- Mean Depth (ft) 0.83 0.88 0.78 Maximum De th (ft) 1.2 1.2 1 Width/Depth Ratio 10.66 5 5.68 Bankfull Area (sq ft) 7.35 3.91 3.44 wetted Perimeter (ft) 9.75 6 5.59 Hydraulic Radius (ft) 0.75 0.65 0.62 Begin BKF station 4.12 4.12 8.54 End BKF Station 12.97 8.54 12.97 ---------------------------------------------------------------------- Entrainment calculations ---------------------------------------------------------------------- Entrainment Formula: Rosgen Modified shields curve channel Left side Right Side slope 0 0 0 shear stress (lb/sq ft) Movable Particle (mm) 73 Reach Classification and Data Worksheets 74 Worksheet 5-3. Field form for Level II stream classification (Rosgen, 1996; Rosgen and Silvey, 2005). Stream= UT to South Fork Withrow Creek, Reach - 2018 Monitoring Basin: Drainage Area: 51.84 acres 0.081 mi' Location: Twp_&Rge: Cross -Section Monuments (Lat./Lang.)- 0 Lat 10 Long Date: 06/25fi8 Observers: Atlas Environmental Valley Type: II Bankfull WIDTH (VMfbkfl WIDTH of the stream channel at bBnkfUlI stage elevation, in a riffle section- 55,$19 Bankfull DEPTH (dk,0 Mean DEPTH of the stream channel cross-section, at bankfull stage elevation, in a We section (dW = Al WOW)• 0,35 Bankfull X -Section AREA (Abkr) AREA of the stream channel cross-section, at bankfull stage elevation, in a riffle section. 2,06 WidthiDepth Ratio WWI dbk0 Bankfull WIDTH divided by bankfull mean DEPTH, in a riffle section. 16.8 Maximum DEPTH (dmbkf) Maximum depth of the bankfull channel cross-section, or distance between the bankfull stage and Thalweg elevations, in a riffle section. 0.71 WIDTH of Flood -Prone Area (Wfpa) Twice maximum DEPTH, or (2 x d,,,w) = the stagefelevation at which flood -prone area WIDTH is determined in a riffle section. 14.1 Entrenchment Ratio (ER) The ratio of flood -prone area WIDTH divided by bankfull channel WIDTH Cwrr.I WOOD (riffle section). 2.4 Channel Materials (Particle Size Index ) D50 The D5D particle size index represents the mean diameter of channel materials, as sampled from the channel surface, between the bankfull stage and Thalweg elevations_ 16.18 Water Surface SLOPE (S) Channel slope = "rise over run" for a reach approximately 20-30 bankfull channel widths in length, with the 'riff le-to-rifHe" water surface slope representing the gradient at bankfull stage. 0,4148 Channel SINUOSITY (k} Sinuosity is an index of channel pattern, determined from a ratio of stream length divided by valley length (SL f VL); or estimated from a ratio of valley slope divided by channel slope (V5) S). 1 12 ft ft' Ft: ;t ft ft ft:;t TL. `L Copyright Q 2006 W iIdland Hydrology WARSSS page 5-29 75 Worksheet 2-2. Computations of velocity and Bankfull discharge using various methods (Rosgen, 2006b; Rosgen and Silvey, 2007). Bankfull 'VELOCITY & DISCHARGE Estimates Stream: UT to South Fork Withrow Creek 11 Location: Reach - 2018 Monitoring Date: 1612512018 1 Stream Type: t;4 Valley Type: II Observers: lAtIas Envi HUC: INPUT VARIABLES OUTPUT VARIABLES Bankfull Riffle Cross -Sectional 2-06 Abkf Bankfull Riffle Mean DEPTH 0.35 dbkr AREA, Bankfull Riffle WIDTH 5,88 bkf Wetted PERMIMETER W IF$ 44 p ,l, •-(2 " dbkf ) + VVbkl f-! D84 at Riffle 15.34 Dia, p.4 (mm)1304.8 0.05 Asa I tmmj ft Bankfull SLOPE 0.4148 5bkf Hydraulic RADIUS 0 32 R (ft 1 ft) Abkr 1 Wp I,r[ 9 Relative Roughness Gravitational Acceleration 32.2 (ff I sec3} R(ft) I a sa 01) 6.40 R 1064 Drainage Area 0.1 DA Shear Velocity u* (7.391 RS)" (ftisec} ESTIMATION METHODS Bankfull Bankfull VELOCITY DISCHARGE 1- Friction Relative ft I sec 5.93 Cfs FactorZ Roughness 2. Roughness Coefficient: a) Manning's n from Friction Factor I Relative Roughness (Figs. 2-16,2-19) u = 1.49"Rx"'S "/n n = 0.031 2 73 It 1 sec 5.62 cfs 2. Roughness Coefficient: u = 1.49R2'' "S"21n b) Manning's n from 'Stream Type (Fig. 2-20) n = 0.031 2 73 ft !sec 5.62 cfs 2. Roughness Coefficient: u = 1A9`R2' *SV NIA ft l see NIA Cfs c) Man ning'sn from Jarrett (US GS): n = 0 39-S Note: This equation is applicable to steep, sfepfpool, high boundary roughness, cobble. and boulder-dornlnated stream systams: i -e-, for n = N1A Stream T es At. A2, A3, 61, 32, 133, G2 a& E3 3. _Other Methods (Hey, Darcy -Weisbach, Chezy G, etc.) 3-13 ft J sec 11 6.455 Cfs Darcy -Weisbach (Leopold, Wolman and Miller I Other Methods (Hey, Darcy -Weisbach, Chezy C, etc - ft i sec I0.00 0.00 cfs Chez C 4- Continuity Equations: a) Regional Curves u = Q f A �•� ft 1 ser, .qQ Cfs Return Period for Bankfull Discharge Q �,f) x year 4- Continuity Equations: b) USGS Gage Data u = Q I A 0.00 ft I SPC 0.00 Cfs Protrusion Height Options for the D.6 Term in the Relative Roughness Relation (RJD64) — Estimation Method 1 Fair nand -bed channels: Measure 100 "protrusion heights" of sand dunes from the downstream side of feature to the lop of Option 1. feature. Substitute the DpA sand dune protrusion height in 0 for the Dao term in method 1. For boulder -dominated channels: Measure 100 "protrusion heights" of boulders an the sides from the bed elevation to the top of Option 2. ft the rock on that side. Substitute the aaa boulder protrusion height in for the E)R4 term in method 1, For bedrockdominated channels: Measure 100 "protrusion heights" of rock separations, steps, joints or uplifted surfaces above Option I channel bed elevation. substitute the Dg, bedrock protrusion height in ft for the D,, term in method 1 - For log -influenced channels: Measure "protrustion heights" proportionate to channel width of log diameters or the height of the Qption 4- log on upstream side if embedded. Substitute the DpA protrusion haight in ft for the D,,4 term in method 1, Copyright O 2008 Wildland Hydrology River Stability Field Guide page 2-41 76 Worksheet 5-4. Morphological relations, including dimensionless ratios of river reach sites (Rosgen and Silvey, 2007; Rosgen, 2008). Stream: UT to South Fork Withrow Creek Location: Reach -201S Monitoring Qbservws: Atlas Environmental Date:/36125118 Valle Type: II stream Type: C 4 Riffle Dimensions" River Reach dimension Summary Data.....1 Mean Min Max Riffle Dimensions & Dimensionless Ratios- Mean Min Max Riffle WAM (W,,,) 5.39 3.48 7.22 ft Riffle Cm. -Sectional Area (A,kr) (fe) 1.34 4.48 2.06 * Mean Riffle Depth (d,kr) 0.24 0.18 0.35 ft Riffle Widt WDepth Ratio Am I drk1) 23.48 16.80 34.38 ie Maximum Riffle Depth (dm„} 0.49 4.29 1 0.71 fl Max Riffle Depth to Mean Riffle Depth (d,„a, I dhkl� 2.026 1.812 2238 c Width of Flood -Prone Area (Wij) m 10.6 7.14 14.1 ft Entrenchment Ratio (blip. ( WW) 2,065 1.478 2.398 m E Riffle Inner Berm Width (W„j Q 1 Q ft Riffle Inner Berm Width to Riffle Width (Wu r Wt,i, 0,000 4.040 D-000 F m Riffle Inner Berm Depth (d,) 0 1 0 1 4 ft Riffle Inner Berm Depth to Mean Depth (dk, I d,,,r) 0.400 0.040 4.440 Riffle Inner Berm Area (a,,) 1 0 1 0 1 0 ff' Riffle Inner Berm Area to Riffle Area (A,, I ALw) 0.000 0.000 0,900 Riffle Inner Berm 4WD Ratio (W„1 d,h) p 4 1 4 Pool Dimensions" " "' Mean Min Max Pool Dimensions & Dimensionless Ratios-' Mean Min Max Pawl Width (Wpkrp) 7.41 7.41 1 7,41 Ift I Foal Width to Riffle Width (Ww,) WAktj 1.37$ 1.375 1,37$ Mean Pool Depth (d,,,,) 2.09 2.49 F709Tt Mean Pool Depth to Mean Riffle Depth (dwp 1 dw) 8,708 PQQI Gross -Sectional Area (A,,,,) 1 15,51 15.51 15.5 ift I Pool Area to Riffle Area {A,,,,, f NO 111.5601 11.560 111.5601 v •N Maximum Paol Depth (d,.,,)3 3 3 ft Max Paol Depth to Mean Riffle Depth (d,,, J dhkr} 12.$00 12.$00 12.504 E Pool Inner Berm Width (WbP} 1 0 1 0 1 0 1ft Pool Inner Berm Width to Pool Width (WAP f Wk3krp) 1 0.000 1 0.040 1 4.900 O Pool Inner Berm Depth (d, p) 1p 0 0 ft Pool Inner Berm Depth to Pool Depth {dao! dp„raj 10.000 OADO 0,000 3 Pool Inner Berm Area (AQP} 11 0 4 0 ft` Pool Inner Bean Area to Pool Area (ASR { 4akrp) i 4.400 0.000 0.400 [PQ 1nt B$r $IQpe (5"0 ' 0.000' 0.000' 0,0001fflft Pool Inner Berm Wid#hIDepth Ratio (Wlbpf dlbp} 0.000 ' 0.004 0.000 Run Dim9ngions' Mean Min Max Run ❑imgn$ionte$$ Ratio$-" Mean Min Max Run Width (Wbu,) 3.681 3.68 1 3.68 ft Run Width to Riffle Width (W,,,rr f 1W,kr) 4.683 0.6$3 4.683 c Mean Run Depth (d,.,,) 4,22 0,22 0,22 ft Mean Run Depth to Mean Riffle Depth (d„pr1 dw) 0.917 0.917 0,917 c Run Gros"ecuonal Area (A,krr) 1 0.$2 0.82 1 0.82 ft I Run Area to Riffle Area {A,,,rr I A,kr} 0.612 0.812 4.612 c Maximum Run Depth {dr) 0.471 0.47 1 0.47 Ift I Max Run Depth to Mean Rime Depth {dr„ v I JbW) 1.958 1.958 1.958 fir Run WidthiDepth Ratio (W11,0 d,*lr; 1 16.7 1 16.7 1 16.7 Ift Glide Difnens[on s- Mean Min Max Glide Dimensions & Dimensionless Ratios-* Mean Min Max Glide Width (Ww,,) 1 5.231 7.48 1 9.94 1 f jGlide Width to Riffle Width (W,,,,,1 W,kr) 1 0.970 1 0.460 1 1.844 w Mean Glide Depth (dw,) 1 0.3161 0.21 1 0,4$ fk Mean Glide Depth to Mean Riffle Depth (d„qj 7 dm,) 1,$QD O,$7$ 1.875 ¢ Glide Gri s-Scolional Area (&krg) 2.12 0.53 4.5 f# Glide Area t0 Riffle Area (A, rg! k,} 1,5$2 0.396 3.358 Maximum Glide Depth (d,M,n) 1 0,571 0.4 1 0.69 1ft I Max Glide Depth to Mean Rime Depth {d B e I d,kr) 1 2.375 1 1.867 1 2.875 Glide WidthlDepth Ratio (W,,,l d,,,) 14 7.95 22.1 ftlfl Glide Inner Berm WidthlDepth Ratio {W„gJ d,h9} 4.000 0.004 8.040 m Glide Inner Barin Width (Wb�} 0 0 0 it Glide inner Berm Width to Glide Width (W .^kr) 0.000 0.000 0.000 i9 Glide Inner Berm Depth (d,bQ) ' 0 ' 4 ' 0 'ft Glide Inner Berm Depth to Glide Depth {da9 ! dwk) ' 0.000 ' 0.000 ' 0,400 Glide Inner Berm Area (AN,} 0 4 0 ftp Glide Inner Berm Area to Glide Area (Abs f Aukrg) 0.004 0.000 0.400 Ste Dimensions- Mean Min Max Step Dimensionless Ratios:- Mean Mln Max Step Width (Whkl) 1 4 1 0 1 0 Ift I Step 4Vidut to Riffle Width (W,,,f, I W hkf) 0.000 1 0.004 8.004 Mean Step Depth {dw,} 1 0 1 0 1 0 ff Mean Step Depth to Riffle Dep#h (dhkr,f dw) 0.004 1 0.000 0.000 a 2 Step Cross -Sectional Area {Ai,,,,a) 1 0 1 0 D ft I Step Area to Riffle Area (Aw,, I Aw) 0.004 1 4.400 0,400 Maximum Step Depth (din,,,) 0 0 4 Ift Max Step Depth to Mean Riffle Depth (d_1 d,,f) 0,004 0.040 4.440 Step WidthlDepth Ratio (W,,,rsf d -r) 0 0 0 RIHre Poo system O,e„ 0, E. F scream t pos) bed features include riffles, runs. pools and g416s 77 -Seep-Pad System (,e„ n. B. G sveam types) bed features Include riffles, eapos, chules. pools arid steps (note: Include rapids and chutes r+ r,ttle category), "'Gonvergenc�Dlvergenae system (r,e„ D Stream types) bed features include rimes and pools; cross -sect -ons taken at miles for classAlcatlon purposes -'Wan vahaes are used as the normallxallon parameter for all dlmenslorkss raWs; e g , minmum poor width to raffle width rano uses 11ye mean riffle width value Worksheet 54. Morphological relations, including dimensionless ratios of river reach sites (Rosgen and Silvey, 2007; Rosgen, 2008)- I Stream: UT to South Fork With raw Creek Location. Reach - 2018 Monitorina I Observers: Atlas Environmental Date: OW25A S Valley Type: II Stream Type: C 4 River Reach Summary Data ..... 2 Streamflyw. Estimated Mean Velocity at Bankful I Stage (ubkr) 0 fNsec jEstirnation Method = StreanAl w. Estimated Discharge at Bankfull Stage (Olkf) r 0 refs Drainage Area r 0.081 rnry Geomat Mean Min Marx Di mensionl"S Geometry Ratios Mein Min Max Wavelength (iL) 1 107 165.1 1 184 Ift Linear Wavelength to Riffle Width (A I Wbkf) 119.86$1 12.0891 34.165 Individual Pool Length {Lp} 139.7 120.5 1 52.4 If I Individual Pool Length to Riffle Widlh (LP I Wiw) 1 7.373 1 3.800 1 9.729 1 to Pool Spacing (Pg} I 98.9 137.7 1 193 Ift I Pool to Poral Spacing to Riffle Width A I Wnkr) 118.3431 6.993 135.874 Val ley Slope {-Q%',) 0-02 fV(t Average Water Surface Slope (S) 1 0,014$ jrjvft Sinuosity (5n,IS) 1-12 Stream Length (SL) 0 ift I Vslley Length (VL) 0 Ft Sinuosity (5L I VL) Low Bank Height (Stream Meander Length (LT) 125 77.7 184 eft (Stream Meander Length Ratio (Lm I Wekf) 23.191 14.417 34.189 c end 0 ft {d,riaK} end 0 ft (LBH I drnax} end Run Slope to Average Water Surface Slope (Sr�r, I S) 1 1.963 1 1.255 1 2.812 Pool Slope (S') 10,Q0210.0001fl. 0031filft It I Radius of Curvature (R_} 17.2 12.81 23.4 ft Radius of Curvature to Riffle Width (R -.I Wo,rf} 1 3.193 2.382 4,341 L Belt Width (W,ir} 31.2 22.6 47.7 ft Meander Width Ratio (Wbnl Wim) 5.7$7 4.197 8.$40 IMax Run Depth to Mean Riffle Depth (dm„°,,,,, I dbkl) Are Length (L,) 0 1 0 1 0 Ift I Arc Length to Riffle Width (L81 WIAF) 0.000 O.00t7 0.000 1 8,8333 162083 111.7921 83.180154 Max Glide Depth (d,,,eV) 1 0,7 10,45 1 4,87 Ift I Max Glide Depth to Mean Riffle Depth (d_, I dew) 2,9167 1.8 T5 Riffle Length 1 59.3 43.4 74.6 ft I Riffle Length to Riffle W idth (Lr' Wbkr} 1 10.994 1 8.058 13.833 0 Del 29.56 1'5.34 mm c Individual Pool Length {Lp} 139.7 120.5 1 52.4 If I Individual Pool Length to Riffle Widlh (LP I Wiw) 1 7.373 1 3.800 1 9.729 1 to Pool Spacing (Pg} I 98.9 137.7 1 193 Ift I Pool to Poral Spacing to Riffle Width A I Wnkr) 118.3431 6.993 135.874 Val ley Slope {-Q%',) 0-02 fV(t Average Water Surface Slope (S) 1 0,014$ jrjvft Sinuosity (5n,IS) 1-12 Stream Length (SL) 0 ift I Vslley Length (VL) 0 Ft Sinuosity (5L I VL) Low Bank Height stertl U�ft Max Depth start�Oft Bank -Height Ratio (BHR) start) (LBH) end 0 ft {d,riaK} end 0 ft (LBH I drnax} end Facet Slopes Mean Min Max Dimenslonless FaaM Slope Ratlas Mean Min Max Riffle Slope (Srv) 1001210.01 Q 1x.014 fUft I Riffle Slope to Average VVater Surface Slope (Sr, I S) 1 0.842 1 0.664 1 Q.953 Run Slope (Stun) 0-029 0.019 0,042 ftlft Run Slope to Average Water Surface Slope (Sr�r, I S) 1 1.963 1 1.255 1 2.812 Pool Slope (S') 10,Q0210.0001fl. 0031filft jPool Slope to Average Water Surface Slope (SR f S) 1 0.113 1 0.028 10,207 (Glide Slope (Sv) 0.0100.008O.01Mftlft (Glide Slope la Average Water Surface Slope (Sq I S) i 0,670 0.510 0.830 Step Slope {8�} 10.00010.00010.0 OftM I Step Slope to Average Water Surface Slope (Ss 1S} 0.000 0.000 0,000 Max Depth F. Mean Min Max Dimensionless Depth Ratios Mean Min Max Max Riffle Depth (drnaur} 0,95 m t7-$1 1,07 ft Max Riffle Depth to Mean Riffle Depth (dr,_dr dhkf) 19583 3,375 4,4583 Max Run depth (dmaxrun) 0.52 10,36 10.94 Ift IMax Run Depth to Mean Riffle Depth (dm„°,,,,, I dbkl) 12-16671 1.5 13.9167 Max Pool Depth (dmaO 2.12 1,49 183 Ift I Max Pool Depth to Mean Riffle Depth {d_p I dbkf! 1 8,8333 162083 111.7921 83.180154 Max Glide Depth (d,,,eV) 1 0,7 10,45 1 4,87 Ift I Max Glide Depth to Mean Riffle Depth (d_, I dew) 2,9167 1.8 T5 3,625 Max Step Depth (d_) I I 0 1 0 1 0 Ift I Max Step Depth to Mean Riffle Depth (d1Y8, I d,,r) O 0 1 0 ' Min, max $ mean depths are meaeured from Thalwag to benkfull at mid -point of reedure ror rattles and runs, the deepest part or poole, $ al the tail -out of glider. kCompo!Oe sample cf rffites and pools within the designaled reagh_ ` Active bed of a Hffie. °Height of roughness feature above bed 11RIIIIIIIIIIII Rea010 Riffle` Bar Rouhb RiMee Bar Protrusion Helight d °!4 Siluclay 0 0 D16 4.08 1.89 mm %a Sand 10.53 16.82 D35 9.75 5.62 mm % Gravel 89.47 83.180154 16.18 7.32 mm % Cobble 4 0 Del 29.56 1'5.34 mm c °!a Boulder 0 0 D95 40.54 2'x.7 mm !e Bedrock 0 1 0 D1a4 1 64 1 45 1 1 Imm ' Min, max $ mean depths are meaeured from Thalwag to benkfull at mid -point of reedure ror rattles and runs, the deepest part or poole, $ al the tail -out of glider. kCompo!Oe sample cf rffites and pools within the designaled reagh_ ` Active bed of a Hffie. °Height of roughness feature above bed 11RIIIIIIIIIIII