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Home My WebLink About20020694 Ver 2_Year 3 Monitoring Report_200804141 1 1 1 1 1 1 1 y? 7/ Little Bugaboo Creek Stream Restoration 2007 Final Monitoring Report Monitoring Year Three Submitted to: NCDENR-Ecosystem Enhancement Program 1652 Mail Service Center Raleigh, NC 27699-1652 RECEIVED Prepared by: URS Corporation -North Carolina FEB 2 5 2008 1600 Perimeter Park Drive, Suite 400 Morrisville, NC 27560 NCE ENHANCEMENTPEM ENTPROGRAM Project Designed by: EarthTech of NC, Inc. 701 Corporate Center Drive, Suite 475 Raleigh, NC 27607 Submitted: February 26, ? ow f APP rt 4 7003 WETLANDS AND STORMWA1 E; 'wtv?riC, os stem , It1 1a] `('111cli PROGRAM Ecosystem Enhancement Program Project Number 00056 TABLE OF CONTENTS ' 1.0 EXECUTIVE SUMMARY/PROJECT ABSTRACT ................................................................... .1 2.0 PROJECT BACKGROUND .............. .3 ' 2.1 PROJECT OBJECTIVES ....... ......................... ....................... .... ................... . ................ . 3 2.2 PROJECT STRUCTURE, MITIGATION TYPE, AND APPROACH ................................... . 3 ' 2.3 LOCATION AND SETTING .................................................................................................. 2.4 PROJECT HISTORY AND BACKGROUND ........................................................................ . 3 . 5 2.5 MONITORING PLAN VIEW ................................................................................................. . 7 3.0 PROJECT CONDITION AND MONITORING RESULTS ...................................................... 14 3.1 VEGETATION ASSESSMENT ............................................................................................. 14 3.1.1 Vegetative Problem Areas .......................................................................................... 14 3.1.2 Vegetative Problem Areas Plan View ........................................................................ 14 ' 3.2 STREAM ASSESSMENT ...................................................................................................... 15 3.2.1 Procedural Items ......................................................................................................... 15 3.2.1.1 Morphometric Criteria ........................................................................................ 3.2.1.2 Hydrologic Criteria ............................................................................................. 15 15 3.2.2 Stream Problem Areas ................................................................................................ 16 ' 3.2.3 Fixed Photo Station Photos ........................................................................................ 3.2.4 Stability Assessment ................................................................................................... 17 17 3.2.5 Quantitative Measures Tables (Morphology and Hydrology) .................................... 17 4.0 METHODOLOGY SECTION ....................................................................................................... 26 4.1 STREAM METHODOLOGY ................................................................................................. 26 4.2 VEGETATION METHODOLOGY ....................................................................................... 26 ' 5.0 REFERENCES ................................................................................................................................27 FIGURES ' Figure 1. Project Vicinity .......................................... ......4 Figure 2. Monitoring Plan View ............................................................... ..............8-13 Figure 3. Vegetative Problem Areas Plan View .............................................. Appendix A-III ' Figure 4. Figure 5. USGS Stream Gage Discharge Data .............................................. Stream Current Condition Plan View .............................................. .................16 ..Appendix B-1 ' TABLES Table I. Project Mitigation Structure and Objectives Table ............................. ...................5 Table Il. Project Activity and Reporting History ........................................... ..................6 Table III. Project Contact Table ............ ..6 ' Table IV. .................................................... Project Background Table...... ................ ..7 Table Va. Categorical Stream Feature Visual Stability Assessment - Unnamed ' Table Vb. Tributary ............................................................................. Categorical Stream Feature Visual Stability Assessment - Little Bugaboo .................17 Creek .................................................................................. ................17 Table VIa. Baseline Morphology and Hydraulic Summary - Unnamed Tributary ..............................................................................................18 i 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 Table VIb. Baseline Morphology and Hydraulic Summary - Little Bugaboo Creek ...................................................................................................20 Table Vila. Morphology and Hydraulic Monitoring Summary - Unnamed Tributary ............................................................... ....................22 Table VIIb. Morphology and Hydraulic Monitoring Summary - Unnamed Tributary ............................................................... ....................23 Table VIIc. Morphology and Hydraulic Monitoring Summary - Little Bugaboo Creek ............................................................ ....................24 Table VIId. Morphology and Hydraulic Monitoring Summary - Little Bugaboo Creek ............................................................. ....................25 Table A1. Vegetation Metadata ...................................................................Appendix A-I Table A2. Vegetation Vigor by Species ................................................... ......Appendix A-I Table A3. Vegetation Damage by Species ................................................. .....Appendix A-I Table A4. Vegetation Damage by Plot ..................................................... .....Appendix A-1 Table A5. Stem Count by Plot and Species ............................................... ......Appendix A-1 Table A6a. Vegetative Problem Area Table - Unnamed Tributary ...................... ......Appendix A-1 Table Abb. Vegetative Problem Area Table - Little Bugaboo Creek ................... ......Appendix A-1 Table B I a. Stream Problem Areas Table - Unnamed Tributary ........................ ......Appendix B-II Table B 1 b. Stream Problem Areas Table - Little Bugaboo Creek ...................... .....Appendix B-II Table B2a. Visual Morphological Stability Assessment - Unnamed Tributary ......... ......Appendix B-V Table B2b. Visual Morphological Stability Assessment - Little Bugaboo Creek ...... ...... Appendix B-V APPENDICES Appendix A Vegetation Raw Data 1. Vegetation Survey Data Tables II. Vegetative Problem Area Photos III. Vegetative Problem Areas Plan View IV. Vegetation Monitoring Plot Photos Appendix B Geor I. II. III. IV. V. VI. VII. VIII. norphic Raw Data Stream Current Condition Plan View Stream Problem Areas Data Tables Representative Stream Current Condition Photos Stream Photo Station Photos Visual Morphological Stability Assessment Cross Section Photos and Annual Overlays of Plots Annual Overlay of Longitudinal Plot Pebble Count Frequency Distribution Plots ii 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 L0 EXECUTIVE SUMMARY/PROJECT ABSTRACT ' URS Corporation (URS) was retained by the North Carolina Ecosystem Enhancement Program (EEP) to conduct stream monitoring at the Little Bugaboo Creek stream restoration project, located in Wilkes County, North Carolina. The stream monitoring effort conducted by URS in September and November 2007 represents Monitoring Year 3 for this project. Prior to the monitoring effort, URS received a digital As-Built drawing for the project site from EEP. In addition, URS received an As-Built/Monitoring Year 1 Report prepared by EarthTech (EarthTech 2005), and a Year 1 Monitoring Report prepared by EcoLogic Associates, P.C (EcoLogic 2006). EEP, formerly the Wetlands Restoration Program (WRP) identified Little Bugaboo Creek and an Unnamed Tributary to Little Bugaboo Creek as potential stream restoration sites in 2002. The existing channels were actively eroding due to unlimited cattle access and lack of streamside vegetation. The design used a Priority Level II restoration approach. Little Bugaboo Creek and the Unnamed Tributary were designed as type C channels. A total of 6,230 linear feet of stream channel was restored. ' Prior to restoration, the pastures adjacent to the channel consisted of fescue with sparse trees along drainages. The banks along much of the reach were vertical and supported little to no vegetation. The main channel was classified as a type F stream because the channel was downcutting and was eroding its banks to establish a floodplain at a lower elevation. The Priority II restoration involved increasing the existing length and providing a floodplain. Cross vanes and rootwads were incorporated for aquatic habitat enhancement and bed and bank stability. A 50-foot riparian buffer was planted on both sides of the restored stream channel. ' The Little Bugaboo Creek restoration site is in overall fair condition. The site continues to have areas of severe bank erosion, accelerated channel widening, and associated aggradation. While the majority of the rock structures are functioning properly and providing crucial grade control, several of them are failing. These problems may be due to any number of reasons, and are likely due to a combination of several factors. In some areas, the failure of the vegetation has likely contributed to the excessive bank erosion. Where beavers have not impounded the system, the bed features are in good condition, with many riffles and pools. ' The most serious problem with the site is the presence of beavers. Not only are the beavers destroying the streamside planted vegetation, they are changing the nature of the channel. It appears that the site ' supports a fairly large beaver population. If measures are not taken to control beavers at the site immediately, the site will deteriorate rapidly. The number and size of the beaver dams has increased dramatically just in the two months between the vegetation monitoring (September) and the stream survey (November). As of November 15`h, 2007 there were four beaver dams on the Unnamed Tributary and ' five beaver dams on the mainstem of Little Bugaboo Creek. The 2006 monitoring data showed a narrowing trend when compared with the cross section data from the 2005 As-built/Year 1 Monitoring Report (EarthTech, June 2005). The cross section data for 2007 are very similar to the 2006 data. In general the cross sectional area, bankfull width, and width to depth ratios decreased in 2006 and have slightly increased in 2007; however, both sets of data remain below Year I data. Entrenchment ratios are remaining above 2.2. Due to the lack of bankfull indicators in a relatively new system, bankfull was typically placed at the top of bank for monitoring analysis. Vegetation survival at the site is poor. According to the 2005 As-built/Year 1 Monitoring Report, five of ' the vegetation plots were significantly disturbed due to repair activities along Little Bugaboo Creek. The plots disturbed by channel repairs were replanted, but planting appear to be concentrated close to the channel, leaving much of the upper floodplain/upland void of woody vegetation. The 2005 Year One Monitoring Report (EcoLogic 2006) and the 2006 Monitoring Year Two Report (URS 2007) found 1 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 insufficient stems to fulfill US Army Corps of Engineers (USACE) requirements. Beaver activity was observed along the Unnamed Tributary and the mainstem of Little Bugaboo Creek during 2007 ' monitoring. In addition, it appears that cows from the adjacent pastures are entering the conservation easement near the crossing at the top of the project reach. The buffer area on the left bank has been grazed. While the damage is not severe at this time, cow and beaver presence will exacerbate the existing problems. Herbaceous grasses and herbs dominated much of the buffer area during the 2007 Year Three monitoring event. Common species include wiregrass (Aristida spp.), dogfennel (Eupatorium capillifolium), goldenrod (Solidago spp.), and bluestem (Andropogon spp.). Taxonomy follows `Flora of the Carolinas, Virginia, Georgia, and surrounding areas' (Weakley 2007). URS recommends testing site soils, fertilizing where necessary based on soil tests, and replanting stems in areas unlikely to meet ' survivability requirements for mitigation credit. 2 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 2.0 PROJECT BACKGROUND ' 2.1 PROJECT OBJECTIVES The main objective of the restoration project was to construct a stable meander geometry, modify the ' channel cross sections, and establish a floodplain at the existing stream elevation, thus restoring a stable dimension, pattern, and profile. Specific project objectives included the following: ' 1. Restore 4,276 linear feet of Little Bugaboo Creek and 1,954 linear feet of an Unnamed Tributary to Little Bugaboo Creek. 2. Provide a stable stream channel that neither aggrades nor degrades while maintaining its dimension, pattern, and profile with the capacity to transport its watershed's water and ' sediment load. 3. Improve water quality and reduce further property loss by stabilizing eroding stream banks. 4. Reconnect the stream to its floodplain or establish a new floodplain at a lower elevation. 5. Improve aquatic habitat with the use of natural material stabilization structures such as root wads, rock vanes, woody debris and a riparian buffer. 6. Provide aesthetic value, wildlife habitat and a bank stability through the creation or ' enhancement of a riparian zone. 2.2 PROJECT STRUCTURE, MITIGATION TYPE, AND APPROACH Prior to restoration, the pastures adjacent to the channel consisted of fescue with sparse trees along ' drainages. The banks along much of the reach were vertical and supported little to no vegetation. The main channel was classified as a type F stream because the channel was downcutting and was eroding its banks to establish a floodplain at a lower elevation. ' The Priority II restoration involved increasing the existing stream length and providing a floodplain. Cross vanes and rootwads were incorporated for aquatic habitat enhancement and bed and bank stability. ' A 50-foot riparian buffer was planted using native vegetation. Cattle were fenced from the riparian area. Little Bugaboo Creek and the Unnamed Tributary were designed as type C channels. A total of 6,230 linear feet of stream channel was restored. 2.3 LOCATION AND SETTING Little Bugaboo Creek is located on agricultural land approximately seven miles east-northeast of North Wilkesboro, just northwest of the town of Ronda in Wilkes County, North Carolina (Figure 1). The ' headwaters of the project originate approximately three miles to the north-northwest of the restoration site. From the headwaters, Little Bugaboo Creek flows for approximately four miles before its confluence with Big Bugaboo Creek. An Unnamed Tributary to Little Bugaboo Creek enters Little Bugaboo Creek at the end of the project site. The headwaters of the Unnamed Tributary originate approximately 1.6 miles from the restoration site. From its headwaters, the Unnamed Tributary flows for approximately 2.5 miles before the confluence with Little Bugaboo Creek. To travel to the site from Raleigh, take I-40 West towards Greensboro. Merge onto US-421 North via Exit 188 toward Yadkinville/Wilkesboro Take the Red White and Blue Road Exit - Exit 276 toward NC- 268/Mathis Farm Road. Turn right at Red White and Blue Road. Follow signs to NC-268/Roaring River. ' Make a right on NC-268, and then a left shortly after onto White Plains Road. The site is located between N Hoots Road and Tharpe Road. To access the mainstem, make a right onto N Hoots Road off of White Plains Road. The site can be accessed through a chicken farm on the left side of the road. To access the ' Unnamed Tributary, make a right on Tharpe Road from White Plains Road. The site is on the right side of the road and can be accessed through a farm gate that leads into a cattle pasture. The project is contained within the property of five landowners. The project reach is bound to the north ' by Tharpe Road. Hoots Road runs south of the project reach. 3 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 TKIK '`/' y �' jay .. _� _ 1� • s, v.: } , . �,. � v � / j ~!� uD%} yx` a �"� +�� 1�,� �(a SIB �,t` y, '=IJ r ,..'�� 41 t id :.. Ky i* +�" �I .l . -4k j " R. � t tf\�++ 1r X4 \ it "ol 4C i� N 1 '! d 2.4 PROJECT HISTORY AND BACKGROUND The Little Bugaboo Creek Stream Restoration project was designed by EarthTech and constructed in the fall and winter of 2003 to 2004. The As-built/Monitoring Year 1 Report was completed by EarthTech in June 2005. Year One Monitoring was conducted by EcoLogic in February of 2006. Year Two Monitoring was conducted by URS in the fall of 2006. The estimated restoration length was 6,230 linear feet. This length includes 4,276 feet of Little Bugaboo Creek and 1,954 feet of an Unnamed Tributary to Little Bugaboo Creek. Historically, a mill and dam were located approximately 150 feet below the confluence of Little Bugaboo ' Creek and the Unnamed Tributary. The mill dam backed up water within approximately half of the project reach. Both streams had incised down to bedrock through the alluvial sediments of the historic pond. The dam was removed near the beginning of the 2Wh Century. Land use throughout the restoration site is agricultural. The primary use is cattle production and the spreading of chicken litter. Fences within the project area did not restrict cattle access to streams and drainages in the area. Cattle access to the stream and riparian areas resulted in streambank erosion prior ' to restoration. Continual grazing limited the ability of vegetation to reestablish itself along the majority of the reach. Additional degradation resulted from historic channelization of both reaches. 1 1 Table I. Project Mitigation Structure and Objectives Table Little Bugaboo Creek EEP Project Number 00056 A u o °' Fro a ++ ees a o o Comment 1 . 4 ? Unnamed 1,892 R PII 1,925 0+00 to 19+54 Tributary - Little 4,478 R PII 4,232 0+00 to 42+76 Bugaboo Creek * Existing Feet were measured from existing topography on design plans provided by EEP ** Stationing follows the Year One Monitoring Report (EcoLogic 2006) R= Restoration PI= Priority I El= Enhancement I PII= Priority II Ell= Enhancement II PIII= Priority III S= Stabilization SS= Stream Bank Stabilization 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 Table II. Project Activity and Reporting History Little Bugaboo Creek EEP Project Number 00056 Activity or Report Scheduled Completion Data Collection Complete Actual Completion or Delivery Restoration Plan A ri12002 Unknown Aril 2002 Construction 2003 Unknown 2003/2004 Permanent seed mix applied 2004 Unknown 2004 Live stakes and wood plants 2004 Unknown 2004 Final Walk Through Unknown Unknown Unknown As-Built Report/Mitigation Plan 2004 Unknown June 2005 Year 1 Monitoring October 2005 February 2006 June 2006 Year 2 Monitoring October 2006 November 2006 January 2007 Year 3 Monitoring October 2007 November 2007 January 2008 Year 4 Monitoring -- -- -- Year 5 Monitoring -- -- -- Year + Monitoring -- -- -- Table III. Project Contact Table Little Bugaboo Creek EEP Project Number 00056 Designer EarthTech of NC, Inc. 701 Corporate Center Drive, Suite 475 Raleigh, NC 27607 Prima project design POC Bill Jenkins PE, RLA 919-854-6228 Construction Contractor Dixie Grading and Equipment Company 5228 W US HWY 421 Wilkesboro, NC 28697 Construction contractor POC Randall Miles 336-973-7281 Planting Contractor Carolina Environmental PO Box 1905 Mt. Airy, NC 27030 Planting contractor POC Joanne Chetham 336-320-3849 Seeding Contractor Carolina Environmental PO Box 1905 Mt. Airy, NC 27030 Seeding contractor POC Joanne Chetham 336-320-3849 Seed Mix Sources Unknown Nursery Stock Suppliers Unknown 2004 Monitoring Performers Earth Tech of North Carolina 701 Corporate Center Drive, Suite 475 Raleigh NC 27607 Stream Monitoring POC - Ron Johnson 919-854-6210 Vegetation Monitoring POC - Jane Almon 919-854-7745 1 00056 - Little Bugaboo Creek - MY3 Final Report 6 URS 2/08 1 i 1 1 1 1 1 1 1 1 1 1 1 1 1 2005 Monitoring Performers (Year 1) EcoLogic Associates, P.C. 4321-A S. Elm-Eugene St. Greensboro, NC 27406 Stream Monitoring POC - Kyle Hoover 336-355-1108 Vegetation Monitoring POC - Moni Bates 336-335-1108 2006 Monitoring Performers (Year 2) URS Corporation - North Carolina 1600 Perimeter Park Drive, Suite 400 Morrisville, NC 27560 919-461-1100 Monitoring POC - Kathleen McKeithan 919-461-1597 2007 Monitoring Performers (Year 3) URS Corporation - North Carolina 1600 Perimeter Park Drive, Suite 400 Morrisville, NC 27560 919-461-1100 Monitoring POC - Kathleen McKeithan 919-461-1597 Table IV. Project Background Table Little Bugaboo Creek EEP Project Number 00056 Project County Wilkes County Drainage Area Little Bugaboo 3.45 square miles Unnamed Tributary 1.4 square miles Drainage impervious cover estimate % 2 Stream Order Little Bugaboo 3 rd Unnamed Tributary 3rd Ph sio ra hic Region Piedmont/Foothills Ecore ion Northern Inner Piedmont 45e Ros en Classification of As-Built C Dominant soil types Chewacla and Rion Reference site ID Basin Creek USGS HUC for Project 03040101 USGS HUC for Reference 05050001 NCDW Sub-basin for Project and Reference 03-07-01 - Project NCDW classification for Project and Reference C - Project An portion of any ro'ect segment 303d listed? No Any portion of any project segment upstream of a 303d listed segment? No Reasons for 303d listing or stressor NA % of project easement fenced Approximately 80% - no cattle in upper reach 2.5 MONITORING PLAN VIEW See Figure 2. Monitoring Plan View. 7 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 d I ?? z Veg Plots Photo Paints LEI ID Northing Easing ID Northing Easting 9 915332 1414444 655 917481.3 1416889 8 915589.8 1414222 657 917200.1 1416993 1 10 915207.1 1414512 670 916674.1 1416935 11 915122.6 1414617 673 916737.4 1416889 III ' 12 915063 1414755 676 916563.6 1416971 13 915037.7 1414879 679 916406.3 1416998 J ?? c 14 915070.8 1914991 681 916355.9 1416999 15 915031.9 1415095 687 916153 1417029 17 915339.3 1415648 693 915956.5 1417054 O 16 915271.5 1415568 745 915923.2 1416962 7 18 915487.6 1415860 741 915860 1417048 21 915760.4 1416504 703 915544.2 1414237??II;??? i 19 915884.5 1416806 706 915232.6 1414449 I? 11 ?, p 21 915822.1 1416922 718 915308.9 1415522 7 916335 1417003 723 915407.5 1415713 ?? O y 6 916548.7 1416925 728 915606.3 1416020 u P 5 918711.3 1416905 661 917038.5 1416952 948.1 1416931 667 916938.3 141 4 916 6877 a 2 917144.6 1416954 ?O o 4 3 917273.8 1416966 1 917346.9 1416918 '?Q ti g o?O ?- Z? Oa_ O?w _- OC i*j? O a m? QOO Z ??`\ \1 Q CO H Z Lj 0 W > _j z <0 Y a 00 i 1 V x ? 1 I1 §? ' W e \ Z ark nz7r z :1 \/ - ioz Zo dz 1 -_?1 I? t??r FIGURE 2 4 l DATE. FEB 2008 TECHNICIAN, EHJ CHECKED BY. KM MONITORING 160 BO 0 160 320 YEAR 3 EEP PROJECT NO. 1" = 320' 00056 SHEET NO. BASE MAP IS DESIGN PLANS PROVIDED BY EEP. 0 D N m r D N O m N n z r zz o O v w K m m o m o y 0 0 z z N ? N m + / X X l r X A- 4* 4 f _F v \ ~ r H tT Q ? n ° I 4 It A 1 h A O % C = O O A i 5" O m I l F ? k r ? X k X % X ° Y / F C2 Lr? X ? o X I l ?\ ? 3N?? N01dW Gg+r,.Z d 15 -n2a - m n o CLIENT: NORTH CAROLINA DEPARTMENT PROJECT: LITTLE BUGABOO Prepore0 by REVISIONS o x i =1 m OF ENVIRONMENT AND NAT R R STREAM RESTORATION NO. DATE vl I I m AL U ESOURCES 2006 MONITORING REPORT ?o m A - o ° z m m ro m TITLE: URS Ca porofion - North Carolina, o C) 00 1600 Perimeter Pork Drive j i'(t?t ?3 1 }} MONITORING PLAN VIEW Morrisville. North Carolina 27560 TE EPI-IME 1 919) 461 -1 100 FAX (9191 461-1415 D7 P. 0 a v (n m n 2 a O O m 0 DO K m :V OR 0 n ? m STq 23x85 i A m b \ Y TJ - \ P ?1 ? s 7' F n / J e ? ? x I ? ?? k f• ? b All m III ?• ? i ` ? '` a j a k 1 i 0 i Ills ? ? VIII ? \\ ,, ? V I Lin lil 1 a li) .1, o3s CCS ?i L A m ®^ m b 'O N I > tp? > 2 \ ??? N I I I c ? ? ?? ?I ? III I', ?I I IIm ? ? a N o S a z Q in r ` T 0 N o ,\ d L5 . CLIENT: PROJECT- Prepared by REVISIONS o NORTH CAROLINA DEPARTMENT LITTLE BUGABOO m + n OF ENVIRONMENT AND NO. DATE 0 C, x ?1 NATURAL RESOURCES STREAM RESTORATION N K m o° o a r m g m c 2006 MONITORING REPORT ro m ?, TITLE, URS Corporation - North Carolina z a w- ° = cZi ; °o " 1600 Perimeter Park Drive ° °D CY h?'?t('111 MONITORING PLAN VIEW Morrisville. North Carolina 27560 TELEPHONE (919) 461-1100 FAX (9191 461-1415 s a co o O R Q ^ m 0 0 ? = 0 o o 0 CO ¦ = m O m o y T N 9 O N ? m ? o oil n - C rk m = m CLIENT: NORTH CAROLINA DEPARTMENT PROJECT: LITTLE BUGABOO Prepared by REVISIONS v o x n z =" OF ENVIRONMENT AND NAT R R R STREAM RESTORATION NO. DATE ° o Z m AL U ESOU CES 2006 MONITORING REPORT g ? m A z z ?n I o+ -. w - Z - co 0 ^ ^ TITLE: URS Corporation - North Carolina ° = c i ( ' 1600 Perlmeter Pork Drive ° °° AYr?}?'? ' ? MONITORING PLAN VIEW Morrisville. North Carolina 27560 - - TELEPHONE 19191 461-1100 FAX (919) 461-1415 - OD n N m -0 w CA - mm N n Z ? vE uis r D Z N .a \ \ 7J m / m II / a' / / Ij r?i 1 I1I I J I E \l '45 \ _ . V r < 1 i T / J ' 1 10 , C1 f 10 m / A N ? a 1 1 j / wE 41 A i y a O N I I 16 N ?v O C z i ? I I / I? I - II O m ? y11 v z O / w r 95 s ? 6 2 A 4 . \ v w. 2 s'j? ?N o _ g , o R & ? "1 o ?- '4 . ? s Z k O ? pp CD O i CLIENT: NORTH CAROLINA DEPARTMENT PROJECT: LITTLE BUGABOO Prepored by REVISIONS in o n = OF ENVIRONMENT AND STREAM RESTORATION NO. DATE ° p j , m NATURAL RESOURCES 2006 MONITORING REPORT A . o 1 m z c z z ° a+? z, (+- m ?? T1nE: URS Corporation -North Carolina P o ^ 1600 Perimeter Pork Drive m 0 M \M 11 MONITORING PLAN VIEW Morrisville. North Corollno 27560 TE-EPHO E (9191 461-1100 FAX (9191 461-1415 a 4 A O W O = O II W O A 0 ao 0 N N E N C ? o n n 00 CLIENT: PROJECT: Prepored by REVISIONS n o NORTH CAROLINA DEPARTMENT LITTLE BUGABOO ° OF ENVIRONMENT AND STREAM RESTORATION NO. DATE N o ; = NATURAL RESOURCES $A n? c 2006 MONITORING REPORT " 0, ° ? = m TITLE: URS Cormrotlon - North Corollno z o m w C=i ; = o ro 1600 Perimeter Pork Drive z ° ° MONITORING PLAN VIEW Morrlsvllle. North Corollno 27560 TM-EPF 40PE (9191 461 -1 100 FM 1 9191 461-1415 3.0 PROJECT CONDITION AND MONITORING RESULTS 3.1 VEGETATION ASSESSMENT 1 1 3.1.1 Vegetative Problem Areas No Vegetative Problem Areas were identified during Year 1 Monitoring. Notes provided on the Vegetative Problem Areas Plan View were as follows: 1. No significant vegetation problems were noted on the intact banks or in the easement corridor, though eroded banks will obviously need replanting when stream repairs are made. 2. Vegetation problems were assessed without an as-built species list or planting plan, thus species survival and mortality rates could not be evaluated. 3. Scattered but widespread occurrences of emerging Chinese privet (Ligustrum sinense) and multiflora rose (Rosa multiflora) were noted throughout the corridor, which will become problematic if not treated. Adjacent areas are infested with Chinese privet, so this will likely be a recurring management challenge. Twenty-two Vegetative Problem Areas were found at the Little Bugaboo site during the 2006 Year 2 monitoring. Twenty-five Vegetative Problem Areas were found at the Little Bugaboo site during the 2007 Year 3 monitoring. Major issues included bare banks as a result of erosion and scour and poor survivability. Additionally, Chinese privet is populating the streambanks and floodplain. Herbaceous grasses and herbs dominated much of the buffer area during the 2007 Year Three monitoring event. Thick mats of herbaceous vegetation were observed. Common species include wiregrass (Aristida spp.), dogfennel (Eupatorium capillifolium), goldenrod (Solidago spp.), and bluestem (Andropogon spp.). It is likely that the presence and density of the above-mentioned native herbs is to blame for size and survivability issues. The small planted stems are not successfully competing for space, light, and nutrients. The Vegetative Problem Areas Tables are located in Appendix A-I. Vegetative Problem Area Photos are located in Appendix A- ll. 3.1.2 Vegetative Problem Areas Plan View The Vegetative Problem Areas Plan View is located in Appendix A-III. 14 1 00016 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 t 1 A 1 3.2 STREAM ASSESSMENT 3.2.1 Procedural Items 3.2.1.1 Morphometric Criteria Dimension and profile were sampled at a rate per the 2003 USACE Stream Mitigation Guidelines as follows: Dimension: Six permanent cross sections were surveyed. Two are located on the Unnamed Tributary (one riffle and one pool) and four are located on Little Bugaboo Creek (two riffles and two pools). At the instruction of the EEP Project Manager, URS surveyed the cross-sections established by EcoLogic for the Year 1 Monitoring Report. The cross-section numbers and locations do not correspond to the As-Built cross-sections established by EarthTech. The survey includes points measured at all breaks in slope, including top of bank, bankfull, and thalweg. Profile: A longitudinal profile survey was performed on the entire project reach (7,092 linear feet). 5,018 linear feet were surveyed on Little Bugaboo Creek and 2,074 linear feet were surveyed on the Unnamed Tributary. Survey points include measurements taken in the thalweg at the beginning of each stream feature such as riffle and pool, as well as the maximum pool depth, bankfull indicators, and top of bank. 3.2.1.2 Hydrologic Criteria No crest gages are installed at this site to document bankfull events. Therefore, potential occurrence was extrapolated based on USGS stream gage discharge data for the Roaring River near Roaring River, NC (USGS 2007). The USGS gage plot is shown below (Figure 4). The gage is located less than five miles from the project site and has a drainage area of 128 square miles. An estimate of the number of bankfull events in 2007 was made by comparing the stream discharges from the USGS data in cubic feet per second (cfs) against the bankfull discharge estimated from the drainage area on the Rural Piedmont Regional Curve. According to the regional curve, a bankfull event occurs on a stream with a 128 square mile drainage area when the discharge is about 2,500 cfs. This discharge was exceeded in January of 2007. Little Bugaboo Creek is in close proximity to the Roaring River. Therefore, it is likely that the project site also experienced a bankfull event in January 2007. 15 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 t 1 Figure 4. USGS Stream Gage Discharge Data USGS 02111500 REDDIES RIVER AT NORTH NILKESBORO, NC 4000 3000 0 2000 L 0 1000 as a? Q h L 100 L V y O k J 26 0 Nov 01 Jan 01 Mar 01 May 01 Jul 01 Sep 01 2006 2007 2007 2007 2007 2007 - Daily naxinun discharge Estinated daily nean discharge Daily nininun discharge - Period of approved data - Daily nean discharge Period of provisional data 3.2.2 Stream Problem Areas There were 35 Stream Problem Areas identified on Little Bugaboo Creek in 2005. In 2006, 40 Stream Problem Areas were identified, and in 2007 34 Stream Problem Areas were identified. The most notable change between 2006 and 2007 on Little Bugaboo Creek was the presence of beaver dams and beaver activity. There were 24 Stream Problem Areas identified on the Unnamed Tributary in 2005. In 2006, 25 Stream Problem Areas were identified, and in 2007, 25 were identified. The Stream Problem Areas Plan View, tables, and photographs are located in Appendices B-1, B-11, and B-III respectively. As discussed in the 2006 Monitoring Year Two Report, there are several areas not captured by the cross sections where the channel size is increasing laterally. Bank erosion in the form of mass wasting and scour exists in Little Bugaboo Creek and the Unnamed Tributary. Underlying causes of erosional problems are difficult to determine at this stage since URS was not involved with the design, construction, or follow-up maintenance phases of this project. Immediate causes are attributed to easily erodible, sandy substrate that dominates the streambank soils. Insufficient vegetative protection has likely contributed to erosion problems as well. Ultimate causes for the erosion problems may be attributed to problems with the project design and/or the implementation of the design during construction activities. The problem areas attributed to improper design and/or construction are likely caused by constructed channel dimensions. The Unnamed Tributary design calls for a floodprone width of 170, yet the channel As-Built floodprone width ranges from 60-75. Likewise, the entrenchment ratio was designed at 3 to 3.8 but was built at 9. The mainstem design calls for a floodprone width of 255, but it was built to 100. The entrenchment ratio was designed at 3 to 3.5 but was built to 9.9. This suggests the channel is not able to dissipate enough energy by accessing its floodplain, and it eroding its banks as a result. URS agrees with the underlying causes of erosion stated in the 2005 As-Built/Monitoring Year 1 Report provided by EarthTech. The report attributes the instability of Little Bugaboo Creek and the Unnamed Tributary to lack of vegetation/poor survival, improper installation and/or design of structures, stream 16 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 t 1 design dimensionless ratios, the inner berm was not constructed according to the plans for typical cross sections, and overland flow/drainageways entering the stream channel. It appears that the problems experienced by the system immediately following construction have allowed for a continual decline in the system's stability. 3.2.3 Fixed Photo Station Photos Fixed Photo Station photos are located in Appendix B-IV. 3.2.4 Stability Assessment Table Va. Categorical Stream Feature Visual Stability Assessment (% Functioning) Unnamed Tributary Little Bugaboo Creek EEP Project Number 00056 Feature Initial* MY-01** MY-02 MY-03 MY-04 MY-05 A. Riffle 100 N/A 96 71 B. Pool 100 N/A 91 90 C.Thalwe 100 N/A 100 100 D. Meanders 100 N/A 67 76 E. Bed General 100 N/A 100 88 F. Bank Condition 100 N/A 91 66 G. Vanes / J Hooks 100 N/A 95 82 H. Wads and Boulders 100 N/A 89 89 * It is assumed that all were 100 percent functional upon completion of construction. **No stability data are presented in previous report. Table Vb. Categorical Stream Feature Visual Stability Assessment (% Functioning) Little Bugaboo Creek Little Bugaboo Creek EEP Project Number 00056 Feature Initial* MY-01** MY-02 MY-03 MY-04 MY-05 A. Riffle 100 N/A 92 44 B. Pool 100 N/A 87 54 C. Thalwe 100 N/A 88 22 D. Meanders 100 N/A 67 34 E. Bed General 100 N/A 98 88 F. Bank Condition 100 N/A 86 83 G. Vanes / J Hooks 100 N/A 82 79 H. Wads and Boulders 100 N/A 75 75 * It is assumed that all were 100 percent functional upon completion of construction. **No stability data are presented in previous report. 3.2.5 Quantitative Measures Tables (Morphology and Hydrology) 17 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 M M M = M = M r = ? = ? = M M== r Table VIa. Baseline Morphology and Hydraulic Summary - Unnamed Tributary Little Bugaboo Creek EEP Project Number 00056 Parameter USGS Gage Data Regional Curve Pre-Existing Project Reference Design As-built Interval Condition Stream Dimension Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean BF Width ft -- -- -- 7.5 30 16.5 17.5 18 17.75 29.5 36.9 33.2 -- -- 18 14.8 31 18.6 Floodprone -- -- 38 -- -- 329 -- -- 170 61 75 68.0 Width ft BF Cross -- -- -- 13 50 26 21.2 21.9 21.55 64.9 71.9 68.4 -- -- 27 22.1 34.4 30.9 Sectional Area ft2 BF Mean -- -- -- 1.0 2.6 1.8 1.2 1.2 1.2 1.9 2.2 2.05 -- -- 1.5 1.1 2.3 1.4 Depth ft BF Max -- 2.2 2.3 2.25 3 3.2 3.1 -- -- 2.1 2.64 3.8 3.1 Depth ft Width/Depth -- -- 14.4 14.8 14.6 13.4 19.4 16.4 -- -- 12 11.2 17.2 14.2 Ratio Entrenchment -- -- 1.8 2.5 2.15 -- -- 8.9 -- -- 9.4 3.47 3.8 3.6 Ratio Bank Height -- -- -- -- -- -- 1.9 4.5 2.8 1.0 1.0 1.0 -- -- -- -- -- -- Ratio Wetted -- 19.9 20.4 20.15 33.3 41.3 37.3 -- -- 21 19.4 33.2 21.3 Perimeter (ft) Hydraulic -- -- -- -- -- -- 1.07 1.07 1.07 1.95 1.74 1.84 -- -- 1.29 1.0 1.8 1.2 radius ft Pattern Channel -- -- -- -- -- -- 26 74 50 59 75 67 -- -- -- 40 131 59.5 Beltwidth ft Radius of -- 27 98 62.5 40.1 69.3 54.7 1.8 3.7 2.8 -- -- -- Curvature ft Meander -- -- -- -- -- -- 87 355 221 -- -- 350 129 224 176.5 130 204 175 Wavelength ft Meander -- -- -- -- -- -- 4.9 19.9 12.4 -- -- 10.5 9 12 10.5 7.01 11.00 9.43 Width Ratio 18 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 M M M M M M M= w r= M M == = M == Table VIa. Baseline Morphology and Hydraulic Summary - Unnamed Tributary Little Bugaboo Creek EEP Project Number 00056 Regional Curve Pre-Existing Project Reference Parameter USGS Gage Data Interval Condition Stream Design As-built Dimension Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Profile Riffle Length -- -- -- -- -- -- -- -- 10 245 127.5 -- -- -- 22 28 25 ft Riffle Slope -- -- -- -- -- 0.02 -- -- 0.02 0.00 0.20 0.10 ft/ft Pool Length -- -- -- -- -- -- -- -- -- 8 32 20 -- -- -- 47 94 70.5 ft Pool Spacing -- -- -- -- -- -- 33 176 104.5 271 334 302.5 64 166 115.0 121 127 124 ft Substrate d50 mm -- -- -- -- -- -- -- -- 5 -- -- 58 -- -- -- 0.5 5.7 3.1 d84 mm -- -- -- -- -- -- -- 23 -- -- 180 -- -- -- 8 32 20 Additional Reach Parameters Valley Length -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1603 ft Channel -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1954 Length ft Sinuosity -- -- -- -- -- -- -- -- 1.2 -- -- -- -- -- 1.3 -- -- 1.2 Water Surface -- -- -- -- -- -- -- -- 0.01 -- -- 0.014 -- -- 0.01 -- -- 0.01 Slope ft/ft BF Slope -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.01 ft/ft Rosgen -- -- -- -- -- -- -- -- C and -- -- C4 -- -- C and -- -- C Classification F F 19 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 M M M! M M M M M M? M M M M M M M M Exhibit Table VIb. Baseline Morphology and Hydraulic Summary - Little Bugaboo Creek Little Bugaboo Creek EEP Project Number 00056 Parameter USGS Gage Data Regional Curve Pre-Existing Project Reference Design As-built Interval Condition Stream Dimension Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean BF Width ft -- -- -- 12 40 23 26 35.5 30.75 20 21.5 20.75 -- -- 25.8 20.3 44 28.8 Floodprone -- -- -- -- -- -- -- -- 90 -- -- 130 -- -- 255 87.5 100 100 Width ft BF Cross -- -- -- 27 100 51 54 87.7 70.85 40.9 42.8 41.85 -- -- 55.7 53.9 67.5 60.1 Sectional Area ft2 BF Mean -- -- -- 1.5 3.3 2.4 1.9 2.9 2.4 2 2 2 -- -- 2.15 1.4 3.2 2.2 Depth ft BF Max -- 2.7 4.1 3.4 2.5 2.7 2.6 -- -- 3.5 3.6 4.6 4.1 Depth ft Width/Depth -- -- -- -- -- -- 8.8 17.4 13.1 9.8 10.8 10.3 -- -- 12 12 32.6 12.6 Ratio Entrenchment -- -- 2.7 -- -- 65 -- -- 9.9 3.1 3.5 3.3 Ratio Bank Height -- -- -- -- -- -- 1.9 4.5 2.8 1.0 1.0 1.0 -- -- -- -- -- -- Ratio Wetted -- 29.8 41.3 35.55 24 25.5 24.75 -- -- 30.1 32.7 46.8 33.3 Perimeter ft Hydraulic -- -- -- -- -- -- 1.812 2.123 1.993 1.704 1.678 1.691 -- -- 1.850 1.3 2.0 1.9 radius ft Pattern Channel -- -- -- -- -- -- 36 140 88 31 44 37.5 NA NA NA 63 122 92.5 Beltwidth ft Radius of -- -- -- -- -- -- 62 234 148 42 63 52.5 72.9 102.9 87.9 60 110 85 Curvature ft Meander -- -- -- -- -- -- 133 590 361.5 185 260 222.5 196 366 281 206 366 286 Wavelength ft Meander -- -- -- -- -- -- 4.4 19.3 11.85 8.9 12.6 10.75 6.5 12.2 9.35 7.2 12.7 9.9 Width Ratio 20 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 M M ? = M M= r r? M== r=== Exhibit Table VIb. Baseline Morphology and Hydraulic Summary - Little Bugaboo Creek Little Bugaboo Creek EEP Project Number 00056 Regional Curve Pre-Existing Project Reference Parameter USGS Gage Data Interval Condition Stream Design As-built Dimension Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Profile Riffle Length -- -- -- -- -- -- -- -- 23 78 50.5 -- -- -- 3 91 47 ft Riffle Slope -- -- -- -- -- -- -- -- 0.02 0.02 0.02 -- -- 0.01 0.00 0.20 0.10 ft/ft Pool Length -- -- -- -- -- -- -- -- -- 8 32 20 -- -- -- 47 94 70.5 ft Pool Spacing -- -- -- -- -- -- 57 287 172 98 180 139 106 217 161.5 121 127 124 ft Substrate d50 mm -- -- -- -- -- -- -- -- 0.25 -- -- 3 -- -- -- 0.25 11.3 5.8 d84 mm -- -- -- -- -- -- -- -- 23 -- -- 50 -- -- -- 1 64 32.5 Additional Reach Parameters Valley Length -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3420 ft Channel -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4276 Length ft Sinuosity -- -- -- -- -- -- -- -- 1.3 -- -- 1.1 -- -- 1.2 -- -- 1.3 Water Surface -- -- -- -- -- -- -- -- 0.00 -- -- 0.01 -- -- 0.01 0.00 0.01 0.01 Slope ft/ft BF Slope -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.00 0.01 0.00 ft/ft Rosgen -- -- -- -- -- -- -- -- l3c, -- -- E4 -- -- C -- -- C Classification C, E, F 21 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 = = r M ' = w = M = M M r = = M = = r Exhibit Table VIIa. Morphology and Hydraulic Monitoring Summary Unnamed Tributary Little Bugaboo Creek EEP Project Number 00056 Parameter Cross Section 1 Pool Cross Section 2 Riffle Dimension N M rt N + N M IT >0 kn >4 + BF Width ft 23.5 13.8 15.1 18.8 17.4 14.8 Flood prone Width ft 52 >42.7 >47 32.4 >81.0 >50 BF Cross Sectional Area ft2 38.3 23.3 25.5 30.7 30.5 26.9 BF Mean Depth 1.6 1.7 1.7 1.6 1.8 1.8 BF Max Depth 3.8 3.5 3.7 3.2 3.2 3.1 Width/De th Ratio 14.4 8.2 9.0 11.5 9.9 8.2 Entrenchment Ratio 2.2 >3.1 >3.1 1.7 >4.7 >3.4 Bank Height Ratio -- 1.0 1.0 -- 1.0 1.0 Wetted Perimeter ft 25.7 17.5 18.2 20.7 19.6 17.8 Hydraulic radius ft 1.5 1.3 1.4 1.5 1.6 1.5 Substrate d50 mm 0.2 12 0.38 23.4 22 55 d84 mm 0.7 68 90 51.3 68 100 22 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 Parameter Dimension BF Width (ft) Floodprone Width (ft) BF Cross Sectional Area (ft2) BF Mean Depth BF Max Depth Width/Depth Ratio Entrenchment Ratio Bank Height Ratio Wetted Perimeter (ft) Hydraulic radius (ft ; Substrate d50 (mm) d84 (mm) Exhibit Table VIIb. Morphology and Hydraulic Monitoring Summary - Unnamed Tributary Little Bugaboo Creek EEP Project Number 00056 Parameter MYI MY2 MY3 MY4 MY5 MY+ Pattern Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Channel 25 132 47 -- -- -- 24 240 36 Beltwidth ft Radius of 20 92 48.5 -- -- -- 38 110 66 Curvature ft Meander 75 230 100 -- -- -- 140 320 187 Wavelength ft Meander Width 3.9 12.2 5.3 -- -- -- 2.6 7.4 2.4 Ratio Profile Riffle Length 12.3 36.9 22 3 70 28 23 84 48 ft Riffle Slope 0.001 0.058 0.024 0.006 0.067 0.021 0.000 0.032 0.016 ft/ft Pool Length ft 15.8 66.8 32.2 15 43 28 17 41 29 Pool Spacing 15.8 130.2 56.1 31 196 95 10 240 72 ft Additional Reach Parameters Valley Length -- -- 1585 -- -- 1585 -- -- 1585 ft Channel Length -- -- 2013 -- -- 1925 -- -- 2074 ft Sinuosity -- -- 1.3 -- -- 1.2 -- -- 1.31 Water Surface -- -- 1.11 -- -- -- -- 0.011 Slope (ft/ft BF Slope ft/ft -- -- 0.011 -- -- 0.011 -- -- 0.012 Rosgen -- -- B/C -- -- E4 -- -- E4 Classification 23 00056 - Little 1 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 r = = M = r = i r = ' s Exhibit Table VIIc. Morphology and Hydraulic Monitoring Summary Little Bugaboo Creek Little Bugaboo Creek EEP Project Number 00056 Cross Section 3 Cross Section 4 Cross Section 5 Cross Section 6 Run Pool Pool Riffle Parameter MYl Riffle + -- (4 M `7 V i + -- N M IV W) + N M R W) + Dimension BF Width ft 27.1 19.3 22.4 20.6 14.0 22.6 31.3 27.3 19.0 17.8 13.3 13.2 Floodprone Width 91.3 91 80 5 68 8 49 3 >50 52.8 >50 >55 39 45.0 38 ft . . . BF Cross Sectional 2 63 2 45 7 51 3 34 21 6 42 4 47 31 39.2 20.6 23.1 21.0 Area ft . . . . . BF Mean Depth 2.3 2.4 2.3 1.7 1.5 1.9 1.5 1.1 2.1 1.2 1.7 1.6 BF Max Depth 4.7 4.2 3.2 3.7 2.6 2.9 5 4.4 4.6 2.4 2.5 2.2 Width/De th Ratio 11.6 8.2 9.7 12.5 9.1 12.0 20.8 24.1 9.2 15.5 7.7 8.3 Entrenchment Ratio 3.4 4.7 3.6 3.3 3.5 >2.2 1.7 >1.8 >2.9 2.2 3.4 2.9 Bank Height Ratio -- 1.0 1.4 -- 1.0 1.0 -- 1.4 1.0 -- 1.0 1.0 Wetted Perimeter 2 36 32 4 24 1 19 3 14 8 15 3 ft 30 21.8 24.2 22.9 15.8 24.3 . . . . . . Hydraulic radius ft 2.1 2.1 2.1 1.5 1.4 1.7 1.3 1.0 1.6 1.1 1.6 1.4 Substrate d50 mm 5 6 7 0.29 13 1.1 0.29 0.94 0.69 21.13 48 46 d84 mm 15 64 18 2.33 59 1.7 2 48 30 54.5 130 90 24 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 M M M M M M M M M M M M M = r M M M M Exhibit Table VIId. Morphology and Hydraulic Monitoring Summary - Little Bugaboo Creek Little Bugaboo Creek EEP Project Number 00056 Parameter MYl MY2 MY3 MY4 MY5 MY+ Pattern Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Channel 16 115 70 -- -- -- 55 250 110 Beltwidth (ft) I Radius of 42 121 72 -- -- -- 50 218 128 Curvature ft Meander 105 210 163 -- -- -- 175 435 286 Wavelength ft Meander Width 3.8 11.6 7.4 -- -- -- 2.2 10.2 4.5 Ratio Profile Riffle Length 13.8 48.5 29.1 10.0 128.0 55 11 97 39 ft Riffle Slope 0.007 0.034 0.015 0.002 0.026 0.012 0.000 0.021 0.011 ft/ft Pool Length ft 9.23 94.6 44.5 16.0 131.0 45 37 219 80 Pool Spacing 16.2 175.3 80.5 43.0 347.0 120 37 522 127 ft Additional Reach Parameters Valley Length -- -- 2975 -- -- 2975 -- -- 2975 ft Channel Length -- -- 4293 -- -- 4232 -- -- 5018 ft Sinuosity -- -- 1.4 -- -- 1.4 -- -- 1.7 Water Surface -- -- 0.57 -- -- 0.0055 -- -- 0.0047 Slope ft/ft BF Slope ft/ft -- -- 0.53 -- -- 0.0056 -- -- 0.0047 Rosgen -- -- B -- -- E4 -- -- E4 Classification 25 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 4.0 METHODOLOGY SECTION As of December 1, 2007, all monitoring methodologies follow the most current templates and guidelines provided by EEP (EEP 2006). Photographs were taken at high resolution using an Olympus Stylus 4.0 megapixel digital camera. GPS location information was collected in 2006 using a Trimble Geo XT handheld mapping grade GPS unit. GPS locations were collected on both banks of each cross section and on all four corners of each vegetation plot. Stream and vegetation problem areas were noted in the field on As-Built Plan Sheets. Permanent photo station photographs were taken from locations marked in the Year One Monitoring Report, prepared by EcoLogic Associates. 4.1 STREAM METHODOLOGY The methods used to generate the data in this report are standard fluvial geomorphology techniques as described in Applied River Morphology (Rosgen 1996) and related publications from US Forest Service and the interagency Stream Mitigation Guidelines (USACE 2003). URS' field morphological survey was conducted using a Nikon DTM-420 Total Station and the data were analyzed and displayed using the Reference Reach Spreadsheet, Version 4.1 T (Mecklenburg 2004). Pebble counts were conducted by sampling a total of 100 pebbles from the feature of the cross section (riffle or pool). According to the most recent guidance issued in Rosgen courses, the pebble count was concentrated within the wetted perimeter of the channel and did not include the banks. The exact pebble count methodology used in previous monitoring periods (prior to Monitoring Year 2) is not known, so we do not know if the results are comparable. Photographs were taken at each cross section. A photo was taken from the left bank towards the right bank, and from the right bank towards the left bank. 4.2 VEGETATION METHODOLOGY According to 2005 As-Built/Year 1 Monitoring Report, 16 permanent vegetation plots were established at the site, using metal conduit to mark their locations in the field. During the initial site assessment in 2006, none of the As-built vegetation plots were located. However, URS did observe 21 permanent vegetation plots that were established by EcoLogic Associates, using white PVC piping at the upstream outside corner of each plot to mark their locations in the field. At the time of the Year One Report, EcoLogic did not have historic project documentation. EcoLogic established 21 new vegetation plots and six new cross ' sections. The locations of the vegetation plots and cross sections are different than those presented in the 2005 As-Built/Year 1 Monitoring Report. Since EarthTech's vegetation plots and cross sections were not located during the 2006 initial site visit, the plots and cross sections established by EcoLogic were used. 1 1 Vegetation monitoring methods followed the 2006 CVS-EEP Protocol for Recording Vegetation (Lee, et al. 2006). Per the protocol, 14 vegetation plots are required for the site. URS inventoried plots 1, 2, 4, 6, 7, 8, 11, 12, 13, 14, 15, 16, 19, and 21. Vegetation plot photographs and GPS locations were collected at the southwest corner of each vegetation plot in 2006. Vegetation monitoring plots were re-marked in the field by replacing all old flagging with new flagging. Each vegetation plot was marked by Ecologic in 2005 with a four-foot PVC pipe at the upstream, outside corner. The remaining three corners were marked with steel conduit. URS placed orange flagging at the southwest corner of each vegetation plot and blue flagging at the remaining corners. The orientation of the plot was marked on the CVS-EEP data sheet if the PVC was not in the southwest corner (the origin of the plot). Planted stems were flagged in white. Volunteer/natural regeneration stems were inventoried, but not flagged. Monitoring taxonomy follows `Manual of the Vascular Flora of the Carolinas' (Radford et. al 1968). Stem height was measured with a folding one-meter rule. Diameter at breast height and decimeter height were measured with calipers. The X,Y coordinates relative to the southwest corner (origin) of each stem in the plot were recorded in 2006. The results of the stem counts are summarized in Appendix A-I. Vegetation plot photos are located in Appendix A-IV. 26 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 5.0 REFERENCES EarthTech. 2005. As-Built/Monitoring Year 1 Report. Little Bugaboo Creek, Wilkes County, North Carolina. Prepared for NC Ecosystem Enhancement Program. June 2005. t Ecologic Associates, P.C. 2006. Bugaboo Stream Restoration 2005 Draft Monitoring Report. Year One Monitoring. Prepared for NC Ecosystem Enhancement Program. June 2006. ' EEP. 2006. Content, Format, and Data Requirements for EEP Monitoring Reports. Version 1.2 (11/16/06). NCDENR, NCEEP. 17pp. ' Lee, Michael T., Peek, Robert K., Roberts, Steven D., Wentworth, Thomas R. 2006. CVS-EEP Protocol for Recording Vegetation. (http://cvs.bio.unc.edu/methods.htm) Mecklenburg, Dan. 2004. The Reference Reach Spreadsheet for Channel Survey Data Management. Version 4.1T. Ohio Department of Natural Resources. Radford, A.E., Ahles, H.E., and C.R. Bell. 1968. Manual of the Vascular Flora of the Carolinas. The University of North Carolina Press. Chapel Hill, NC. Rosgen, D.L. 1996. Applied River Morphology. Wildland Hydrology, Pagosa Springs, CO. URS. 2007. Little Bugaboo Creek Stream Restoration 2006 Monitoring Report. Monitoring Year Two. Prepared for NC Ecosystem Enhancement Program. January 2007. ' USACE, Wilmington District, US Environmental Protection Agency, NC Wildlife Resources Commission, and NC Division of Water Quality. 2003. Stream Mitigation Guidelines. April 2003. 26 pp. USGS. 2007. Roaring River near Roaring River, NC streamflow gage. USGS Real-Time Water Data. Gage 02112120, http://waterdata.usgs•,2,ov. Weakley, A.S. 2007. Flora of the Carolinas, Virginia, Georgia, and surrounding Areas. Working Draft as of 11 January 2007. UNC Herbarium. North Carolina Botanical Garden. UNC at Chapel Hill. 1 1 1 27 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 1 1 1 1 1 1 1 1 APPENDIX A-I. VEGETATION SURVEY DATA TABLES APPENDIX A VEGETATION RAW DATA 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 APPENDIX A-I. VEGETATION SURVEY DATA TABLES ' Table Al. Vegetation Metadata Report Prepared By Susan Shelingoski Date Prepared 10/1/2007 10:41 database name CVS_EEP_EntryTool_v220NEW.mdb database - location P:\Jobs3\31825348 Monitoring\Veg computer name RDUXPL129 DESCRIPTION OF WORKSHEETS IN THIS DOCUMENT------------ , Metadata This worksheet, which is a summary of the project and the project data. Each project is listed with its PLANTED stems, for each year. This excludes Proj, planted live stakes and lists stems per acre. Each project is listed with its TOTAL stems, for each year. This includes live Proj, total stakes, all planted stems, and all natural/volunteer stems. Listed in stems stems per acre. Plots List of plots surveyed. Vigor Vigor by Spp Frequency distribution of vigor classes. Frequency distribution of vigor classes listed by species. List of most frequent damage classes with number of occurrences and Damage percent of total stems impacted by each. Damage by ' Spp Damage values tallied by type for each species. Damage by ' Plot ALL Stems by Damage values tallied by type for each plot. Count of total living stems of each species (planted and natural volunteers Plot and spp combined) for each plot; dead and missing stems are excluded. PROJECT SUMMARY------------------------------------- Project Code 56 project Name Little Bugaboo Creek ' Description River Basin Stream Restoration length(ft) stream-to- edge width (ft) area (sq m) Required t Plots (calculated) Sampled Plots 0 1 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 1 1 1 1 APPENDIX A-1. VEGETATION SURVEY DATA TABLES Table A2. Vegetation Vigor by Species Species 4 3 2 1 0 Missing Alnus serrulata 7 6 Aronia arbutifolia 2 Betula ni ra 2 1 Callicar a americana 4 2 Cornus racemosa 9 9 Fraxinus enns ivanica 11 15 2 1 Ju lans ni ra 3 3 N ssa s Ivatica 2 3 3 4 Quercus alba 1 7 2 Rhus labra 1 3 Salix ni ra 1 2 Sambucus canadensis 2 9 1 1 1 Rhus co allinum 2 Ilex o aca 1 Liriodendron tuli ifera 1 1 Platanus occidentalis 24 31 1 1 Prunus 4 4 1 Acer ne undo 9 3 TOT: 18 65 106 15 6 1 10 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 APPENDIX A-1. VEGETATION SURVEY DATA TABLES Table A3. Vegetation Damage by Species Species All Damage Categories (no damage) Diseased Insects Other/Unknown Animal Acerne undo 12 6 6 Alnus serrulata 13 12 1 Aronia arbutifolia 2 2 Betula ni ra 3 3 Callicar a americana 6 6 Cornus racemosa 18 18 Fraxinus enns Ivanica 29 28 1 Ilex o aca 1 1 Ju lans ni ra 6 6 Liriodendron tuli ifera 2 2 N ssa s Ivatica 12 12 Platanus occidentalis 57 44 12 1 Prunus 9 8 1 Quercus alba 10 10 Rhus co allinum 2 2 Rhus labra 4 3 1 Salix ni ra 3 2 1 Sambucus canadensis 14 14 TOT: 18 203 177 4 21 1 Table A4. Vegetation Damage by Plot lot All Damage Categories (no dama a Diseased Insects Other/Unknown Animal 056-01-0001-year: 3 25 25 056-01-0002- ear:3 44 43 1 056-01-0004- ear:3 8 7 1 056-01-0006- ear:3 12 11 1 056-01-0007- ear:3 16 13 1 2 056-01-0008- ear:3 5 5 056-01-0011-year: 3 22 19 1 2 056-01-0012- ear:3 8 6 1 1 056-01-0013- ear:3 8 8 056-01-0014- ear:3 10 8 1 1 056-01-0015- ear:3 6 6 056-01-0016- ear:3 2 2 056-01-0019- ear:3 6 5 1 056-01-0021-year: 3 31 21 10 TOT: 14 203 177 4 21 1 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 APPENDIX A-1. VEGETATION SURVEY DATA TABLES Table A5. Stem Count by Plot and Species ., N 4 to P• a& r N M 4 6 O O r O O O O O O O O O O O O r O r O r O T- O T- O T- O T- O N O O ' co r O ' co r O ' M T O ' M r O ' M r O ' M r O ' M r O ' M r O ' M r O ' M IL O ' M r O ' M r O ' M r O ' co r O i M O O R O O - R t O O R O O M O O tQ O L O tQ O L ' R O O i t0 to O L t • tQ O L O • ca O L g M O O ? M O L O ? M W) tU ? o y W) A d to ? d W) A o d w T 0 d w y W) d O ? CD d O A O to 41 to ? o d to ? 0 d to T o d W) O W) ? o Total r o 4.d O *1 .? r o .d O 4. r w r.+ a+ i? w+ .. Planted # avg# .2 2 2 2 2 ° - .2 .2 .2 2 2 -° .2 2 Species Stems lots stems a Q Q Q Q Q _ a a a Q Q a Q a Acerne undo 12 1 12 12 Alnus serrulata 13 7 1.86 4 1 3 1 2 1 1 Aronia arbutifolia 2 1 2 2 Betula ni ra 2 2 1 1 1 Callicar a americana 4 3 1.33 2 1 1 Cornus racemosa 18 3 6 16 1 1 Fraxinus enns Ivanica 28 11 2.55 6 4 2 2 1 1 1 3 2 1 5 Ju lans ni ra 6 2 3 5 1 Liriodendron tuli ifera 2 2 1 1 1 N ssa s Ivatica 8 6 1.33 1 2 1 1 2 1 Platanus occidentalis 57 13 4.38 13 8 1 4 8 3 4 1 4 2 2 1 6 Prunus 8 4 2 3 1 3 1 Quercus alba 10 4 2.5 6 1 2 1 Rhus co allinum 2 2 1 1 1 Rhus labra 4 2 2 1 3 Salix ni ra 3 1 3 3 Sambucus canadensis 13 4 3.25 3 1 7 2 TOT: 17 192 17 25 41 7 9 16 4 20 8 8 10 6 2 5 31 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 APPENDIX A-1. VEGETATION SURVEY DATA TABLES Exhibit Table A6a. Vegetative Problem Areas - Unnamed Tributary Little Bugaboo Creek EEP Project Number 00056 Feature # Feature/issue Station #/Range Probable Cause Photo # UTVPAI Bare bank 0+15 Scour UTVPAI UTVPA2 Bare bank 1+90 Scour UTVPA2 UTVPA3 Bare bank 8+00 Scour UTVPA3 UTVPA4 Bare bank 14+60 Scour UTVPA4 UTVPA5 Bare bank 15+05 Scour UTVPA5 UTVPA6 Exotic population 16+00 Chinese rivet UTVPA6 UTVPA7 Exotic population 18+80 Chinese rivet UTVPAI UTVPA8 Bare bank 20+00 Scour UTVPA8 UTNVPAI Bare bank 8+90 Scour UTNVPAI Exhibit Table A6b. Vegetative Problem Areas - Little Bugaboo Creek Little Bugaboo Creek EEP Project Number 00056 Feature # Feature/Issue Station #/Range Probable Cause Photo # VPA1 Poor survivability 0+00 to 5+60 Thick herbaceous vegetation VPA1 VPA2 Bare bank 3+30 Bank erosion VPA2 VPA3 Bare bank 14+80 Bank erosion VPA3 VPA4 Bare bank 11+00 Scour VPA4 VPA5 Bare bank 14+00 Scour VPA5 VPA6 Bare flood lain 15+00 A radation VPA6 VPA8 Bare bank 25+00 Scour VPA8 VPA9 Bare bank 26+00 Scour VPA9 VPA10 Bare bank 30+00 Scour VPA10 VPA11 Bare bank 37+20 Scour VPA11 VPA12 Bare bank 38+00 Scour VPA12 VPA13 Bare bank 40+60 Beaver damage VPA13 VPA14 Bare bank 41+60 Scour VPA14 NVPA1 Exotic population 5+60 Chinese rivet NVPA1 NVPA2 Bare bank 16+40 Scour NVPA2 NVPA3 Bare bank 31+10 Scour NVPA3 00056 - Little Bugaboo Creek - MY3 Final Report URS t 2/08 APPENDIX A-II. VEGETATIVE PROBLEM AREA PHOTOS UNNAMED TRIBUTARY (9/25/07 UTVPA2 facing right bank 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 UTVPA4 facing right bank UTVPA I facing right bank UTVPA5 facing right bank, upstream UTVPA6 facing left bank, downstream APPENDIX A-II. VEGETATIVE PROBLEM AREA PHOTOS UTNPAI LITTLE BUGABOO CREEK (9/26/07) t ir r ?t' ? W ??'S r t !a fto 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 UTVPA8 facing upstream UTVPA7 facing left bank, downstream VPAI on left bank, facing downstream (11/2/06) VPA2 facing left bank APPENDIX A-II. VEGETATIVE PROBLEM AREA PHOTOS ..:, 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 VPA3 facing left bank VPA4 facing left bank, downstream VPA5 facing right bank VPA6 on right bank (11/2/06) VPA8 facing left bank VPA9 facing left bank APPENDIX A-II. VEGETATIVE PROBLEM AREA PHOTOS ?i f' 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 VPA I 1 facing right bank VPA 10 facing left bank VPA12 facing left bank VPA 13 on right bank VPA 14 facing left bank NVPA 1 on left bank APPENDIX A-II. VEGETATIVE PROBLEM AREA PHOTOS ? P r t ? }e 1? ?. F Y ,.tom ? f(i ?A ? 4 y?? K r?Ya 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 NVPA3 facing right bank NVPA2 on left bank 1 1 APPENDIX A-III. VEGETATIVE PROBLEM AREAS PLAN VIEW 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 Vegetative Problem Areas • Unnamed Tributary Little Bugaboo Creek 00056 Feature # Feature/issue Station #/Ran a Probable Cause UTVPA1 Bare bank 0+15 Scour UTVPA2 Bare bank 1+90 Scour UTVPA3 Bare bank 8+00 Scour UTVPA4 Bare bank 14+60 Scour UTVPA5 Bare bank 15+05 Scour UTVPA6 Exotic population UTVPA7 Exotic population UTVPA8 Bare bank 20+00 Scour UTNVPA1 Bare bank 8+90 Scour Vegetative Problem Areas - Little Bugaboo Creek Little Bugaboo Creek 00 056 Feature # Feature/Issue Station #/Ran a Probable Cause VPA1 Poor survivability 0+00 to 5+60 Thick herbaceous vegetation VPA2 Bare bank 3+30 Bank erosion VPA3 Bare bank 14+80 Bank erosion n?nn N W F, S Prepared By: URS Corporation - North Carolina 1600 Perimeter Park Drive Suite 400 Morrisville, NC 27560 Phone: 919-461-1100 Fax: 919-461-1415 UM Prepared For: NC Ecosystem Enhancement Program r? tion 1 Lcosystelll m2 - Project: Little Bugaboo Creek Stream Restoration Wilkes County, NC Monitoring Year: 3(2007) 7 Project Number: 00056 Date: December 2007 Legend 2006 Problem Area Concern 2006 Problem Area Concern VP1315+00VPA6VP15 0 250 500 Feet lb 2006 Problem Area High Concern 2006 Problem Area High Concern 0 2007 Problem Area Concern 2007 Problem Area Concern jIE Stations - Cross Sections . Vegetation Plots - As-built Centerline - As-built Streambank Vegetative Problem Areas Plan View APPENDIX A-IV. VEGETATION MONITORING PLOT PHOTOS (9/25/07 - 9/26/07) VPl VP4 VP7 VP2 VP6 r 7 1 ` VP4 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 APPENDIX A-IV. VEGETATION MONITORING PLOT PHOTOS (9/25/07 - 9/26/07) VP12 ?fy d ?ly r w VP14 VP16 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 t APPENDIX A-IV. VEGETATION MONITORING PLOT PHOTOS (9/25/07 - VP19 VP21 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 1 1 APPENDIX B I GEOMORPHIC RAW DATA 1 1 00056 - Little Bugaboo Creek - MY3 Final Report URS 2108 1 1 1 1 1 APPENDIX B-1. STREAM CURRENT CONDITION PLAN VIEW 1 11111 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 1 i 1 t 1 1 APPENDIX B-11. STREAM PROBLEM AREAS DATA TABLES Exhibit Table Bla. Stream Problem Areas - Unnamed Tributary Little Bugaboo Creek EEP Project Number 00056 Feature # Feature/Issue Station # /Range Probable Cause Photo # UTPA 1 Beaver dam 0+60 Beaver UTPA 1 UTPA2 Structure failure 1+00 Improper design and/or construction UTPA2 UTPA3 Beaver dam 2+80 Beaver UTPA3 UTPA4 Bank erosion/scour 5+35 Improper design and/or construction UTPA4 UTPA5 Structure degradation 5+95 Improper design and/or construction UTPA5 UTPA6 Structure degradation 6+10 Improper design and/or construction UTPA6 UTPA? Bank erosion/scour 6+50 Improper design and/or construction UTPA? UTPA8 Bank erosion/scour 7+15 Improper design and/or construction UTPA8 UTPA9 Structure degradation 7+25 Improper design and/or construction UTPA9 UTPA10 Structure failure 7+40 Improper design and/or construction UTPA10 UTPA11 Bank erosion/scour 7+55 Improper design and/or construction UTPAI I UTPA 13 Beaver dam 7+60 Beaver UTPA 13 UTPA12 Bank erosion/scour 8+00 Improper design and/or construction UTPA12 UTPA14 Bank erosion/scour 8+25 Improper design and/or construction UTPA14 UTPA 15 Beaver dam 9+00 Beaver UTPA 15 UTPA16 Bank erosion/scour 11+75 Improper design and/or construction UTPA16 UTPA 17 Bank erosion/scour 12+40 Improper design and/or construction UTPA 17 UTPA 18 Bank erosion/scour 12+60 Improper design and/or construction UTPA 18 UTPA 19 Channel widening 13+40 Scour UTPA 19 UTPA20 Structure degradation 14+50 Improper design and/or construction UTPA20 UTPA21 Bank erosion/scour 15+10 Improper design and/or construction UTPA21 UTPA22 Bank erosion/scour 18+15 Improper design and/or construction UTPA22 UTPA23 Debris 'am 18+50 Debris 'am UTPA23 UTPA24 Bank erosion/scour 19+20 Improper design and/or construction UTPA24 00016 - Little Bugaboo Creek - MY3 Final Report URS 2/08 APPENDIX B-II. STREAM PROBLEM AREAS DATA TABLES 1 1 1 1 1 t i 1 Exhibit Table Blb. Stream Problem Areas - Little Bugaboo Creek Little Bugaboo Creek EEP Pro'ect Number 00056 Feature # Feature/Issue Station # /Range Probable Cause Photo # PA I Bank erosion 3+10 Root wad failure PA I PA2 Bank erosion/scour 3+70 Improper design and/or construction PA2 PA3 Beaver dam 4+20 Beaver PA3 PA4 Structure degradation 6+80 Scour behind rootwad PA4 PA5 Beaver dam 7+40 Beaver PA5 PA6 Bank erosion/scour 7+50 Improper design and/or construction PA6 PA7 Structure degradation 8+45 Improper design and/or construction PA7 PA8 Structure failure 9+20 Erosion behind arm PA8 PA9 Beaver dam 11+00 Beaver PA9 PA10 Channel failure 10+60 to 11+00 Improper design and/or construction PA10 PA 11 Bank erosion/scour 14+00 Improper design and/or construction PA 11 PA12 Structure degradation 15+10 Scour behind rootwad PA 12 PA 13 Bar formation 16+15 A radation PA 13 PA 14 Bank erosion/scour 16+50 Improper design and/or construction PA 14 PA 15 Structure degradation 17+80 Mass wasting PA 15 PA16 Structure failure 19+90 Bank erosion PA16 PA 17 Bank erosion/scour 21+10 Improper design and/or construction PA17 PA 18 Bank erosion/scour 24+00 Improper design and/or construction PA 18 PA 19 Structure degradation 24+50 Bank erosion PA 19 PA20 Structure de radation 24+90 Piping behind wads PA20 PA21 Bank erosion/scour 25+00 Improper design and/or construction PA21 PA22 Bank erosion/scour 25+10 Improper design and/or construction PA22 PA23 Beaver dam 27+00 Beaver PA23 PA24 Bank erosion/scour 27+20 Im ro er design and/or construction PA24 PA25 Bank failure 30+00 Improper design and/or construction PA25 PA26 Bank erosion/scour 32+30 Wildlife crossing PA26 PA27 Bank erosion/scour 34+90 Scour behind rootwad PA27 PA28 Bank erosion/scour 39+90 Structure placement PA28 PA29 Bank erosion/scour 40+05 Improper design and/or construction PA29 PA30 Bank erosion/scour 41+00 Improper design and/or construction PA30 PA31 Beaver dam 41+20 Beaver PA31 PA32 Bank erosion/scour 41+30 Improper design and/or construction PA32 PA33 Structure degradation 41+60 Improper design and/or construction PA33 PA34 Structure de radation 42+76 Im ro er desi in and/or construction PA34 00051 - Little Bugaboo Creek - MY3 Final Report URS 2/08 APPENDIX B-III. REPRESENTATIVE STREAM PROBLEM AREA PHOTOS UNNAMED TRIBUTARY (9/25/07 - 9/26/07) 01016 - Little Bugaboo Creek - MY3 Final Report URS 2/08 UTPA2 facing right bank UTPA4 facing downstream UTPA5 facing downstream UTPA6 facing upstream UTPA7 facing left bank UTPA8 facing right bank APPENDIX B-III. REPRESENTATIVE STREAM PROBLEM AREA PHOTOS 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 UTPA 10 facing upstream UTPA9 facing right bank UTPA 11 facing left bank UTPA12 facing right bank, downstream UTPA 14 facing right bank UTPA 16 facing downstream APPENDIX B-III. REPRESENTATIVE STREAM PROBLEM AREA PHOTOS 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 UTPA 18 facing downstream UTPA 17 facing right bank UTPA 19 facing right bank UTPA20 facing downstream UTPA21 facing upstream UTPA22 facing left bank APPENDIX B-III. REPRESENTATIVE STREAM PROBLEM AREA PHOTOS PA23 facing downstream 41, \ 1y Y y •:'?'.. 14 :?a xttl??? ..x.?y 'Y•NC 113 /'J i. 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 PA24 facing right bank PA25 facing right bank PA26 facing right bank PA27 facing left bank PA28 facing downstream APPENDIX B-111. REPRESENTATIVE STREAM PROBLEM AREA PHOTOS LITTLE BUGABOO CREEK (9/26/07) 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 UTPA24 facing upstream UTPA23 facing downstream PA1 facing left bank PA2 facing downstream PA3 facing downstream PA4 facing upstream APPENDIX B-III. REPRESENTATIVE STREAM PROBLEM AREA PHOTOS 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 PA5 facing upstream PA6 facing left bank PA7 facing right bank PA8 facing downstream PA9 facing upstream (11/15/07) PA 10 facing downstream APPENDIX B-III. REPRESENTATIVE STREAM PROBLEM AREA PHOTOS are +?`a *? ?y?,y? t *? ,. ? ??• "rte s? .? .? .'*W" 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 PA 12 facing right bank PA 11 facing downstream PA 13 facing downstream PA 14 facing downstream PA 15 facing left bank I APPENDIX B-III. REPRESENTATIVE STREAM PROBLEM AREA PHOTOS it`db 1 9 ? y? u?yig ??z1 L P A ¢ .. ?/ ?j•>r J PA 17 facing right bank i r PA 19 facing downstream ' .y ?j{L f A 'lYxs. •`i ?"y ???/?')•.Y? ?i ref - 1M gw? PA21 11icin, upstrC<im RAY,. r t ?'1 r ,? i • 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 f ??.ll vffl6i. '11? ?''s$N t?H • y 44 PA20 facing left bank PA22 facing upstream APPENDIX B-III. REPRESENTATIVE STREAM PROBLEM AREA PHOTOS I w az.,{s;r ? {T?/ i Mt 1e'vk. ? S:, PA31 facing upstream (11/15/07) PA32 facing junction with UT 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 PA29 facing left bank PA30 facing downstream PA34 facing upstream r APPENDIX B-IV. STREAM PHOTO STATION PHOTOS UNNAMED TRIBUTARY (9/25/07 - 9/26/07) r I 1'655 11/14/05 ( ) 1 r r P661 r 1 1 4i V, r r ' 1'673 3. P657 P667 P676 y{ 1 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 APPENDIX B-IV. STREAM PHOTO STATION PHOTOS P679 P687 P681 P745 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 P741 (11/15/07) P693 (11/14/05) APPENDIX B-IV. STREAM PHOTO STATION PHOTOS LITTLE BUGABOO CREEK (9/25/07 - 9/26/07) P703 P718 P728 P706 P723 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 = M M M M= r=== M r r M M M' = APPENDIX B-V. VISUAL MORPHOLOGICAL STABILITY ASSESSMENT Exhibit Table B2a. Visual Morphological Stability Assessment Unnamed Tributary Little Bugaboo Creek EEP Project Number 00056 eature Category etric (per As-built and reference baselines 'O y C L d Z a° y+ ? Q L cc _ y F e.°_ L C w O y w L e h 6 8 0 L L w a A. Riffles Present? 10 12 2 83 Armor stable no displacement)? 10 12 2 83 Facet grade appears stable? 10 12 2 83 Minimal evidence of embedding/fining? 6 12 6 50 Length appropriate? 7 12 5 58 71 B. Pools Present (not subject to severe a rad. or migration)? 27 30 0 90 Sufficient) deep (max pool D:mean Bkf>1.6 27 30 0 90 Length appropriate? 27 30 0 90 90 C. Thalweg Upstream of meander bend (run/inflection) centering? 9 9 0 100 Downstream of meander (glide/inflection) centering? 9 9 0 100 100 D. Meanders Outer bend in state of limited/controlled erosion? 11 16 5 69 Of those eroding, # w/concomitant point bar formation? 3 5 N/A 60 A anent Re within spec? 12 16 4 75 Sufficient flood lain access and relief? 16 16 0 100 76 E. Bed General General channel bed a radation areas (bar formation) 1874 2074 200 90 Channel bed degradation-areas of increasing downcuttin /headcuttin ? 1774 2074 300 86 88 F. Bank Active) eroding, wasting, or slumping bank 1374 2074 700 66 66 Vanes Free of back or arm scour? 12 16 4 75 Height appropriate? 15 16 1 94 Angle and geometry appear appropriate? 15 16 1 94 Free of piping or other structural failures? 10 16 6 63 82 Wads/ Boulders Free of scour? 14 18 4 78 Footing stable? 18 18 0 100 89 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 mm mm == M = m m i M = M M M M M i APPENDIX B-V. VISUAL MORPHOLOGICAL STABILITY ASSESSMENT Exhibit Table B2b. Visual Morphological Stability Assessment Little Bugaboo Creek Little Bugaboo Creek EEP Project Number 00056 eature Categor-Y etric (per As-built and reference baselines y •?. y w 'n w O z a ? d L ?C y w eC ?= O Ems- a.°_ L w O _ O O ^O o °u O E. O O O C Gs; a A. Riffles Present? 13 27 14 48 Armor stable (no displacement)? 13 27 14 48 Facet grade appears stable? 13 27 14 48 Minimal evidence of embedding/fining? 8 27 19 30 Length appropriate? 13 27 14 48 44 B. Pools Present not subject to severe a rad. or migration)? 27 49 22 55 Sufficiently deep (max pool D:mean Bkf>1.6) 27 49 22 55 -Length appropriate? 25 49 24 51 54 C. Thalweg Upstream of meander bend (run/inflection centering? 12 49 37 24 Downstream of meander (glide/inflection) centering? 10 49 39 20 22 A Meanders Outer bend in state of limited/controlled erosion? 19 49 30 39 Of those eroding, # w/concomitant point bar formation? 3 49 46 6 Apparent Rc within spec? 20 49 29 41 Sufficient flood lain access and relief? 24 49 25 49 34 E. Bed General General channel bed a radation areas bar formation) 4268 5018 750 85 Channel bed degradation-areas of increasing downcuttin eadcuttin ? 4568 5018 450 91 88 F. Bank Actively eroding, wasting, or slumping bank 4168 5018 850 83 83 G. Vanes Free of back or arm scour? 12 19 7 63 Heigh t appropriate? 19 19 0 100 Angle and geometry appear appropriate? 19 19 0 100 Free of piping or other structural failures? 10 19 9 53 79 H. Wads/ Boulders Free of scour? 17 26 9 65 Footing stable? 22 26 4 85 75 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 1 1 i 1 1 1 1 1 1 1 1 1 1 1 APPENDIX 13-VI. CROSS SECTION PHOTOS AND ANNUAL OVERLAYS OF PLOTS Photos taken 11/14/06 to 11/15/06 UNNAMED TRIBUTARY As-Built and MY1 cross section data were not provided. 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 APPENDIX 13-V1. CROSS SECTION PHOTOS AND ANNUAL OVERLAYS OF PLOTS Photos taken 11/14/06 to 11/15/06 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 XS 1 facing left bank XS1 facing right bank XS2 facing left bank XS2 facing right bank 1110 1108 0 1106 1104 Cu, 1102 1100 1098 UT to Little Bugaboo Creek XS 1, Year 2 and 3 Overlay 0 10 20 30 Station 40 50 Year 2 - 11106 Year 3- 11107 UT to Little Bugaboo Creek XS 2, Year 2 and 3 Overlay 1108 1106 1104 c? _0 1102 W 1100 1098 T ,- 0 10 20 30 Station 40 50 60 -?- Year 2 - 11/06 Year-3-11/07- 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 APPENDIX 13-VI. CROSS SECTION PHOTOS AND ANNUAL OVERLAYS OF PLOTS ' Photos taken I 1/ 14/06 to 11 / 15/06 1 LITTLE BUGABOO CREEK 01156 - Little Bugaboo Creek - MY3 Final Report URS 2/08 APPENDIX 13-VI. CROSS SECTION PHOTOS AND ANNUAL OVERLAYS OF PLOTS Photos taken 11 / 14/06 to 11/] 5/06 f ? a,4 ??'{?!? ?f! 14tR ? ++r y ?'r 777 ' c ? ? 3 tv, AtZ -Ky ro y l? . .45 ??^?n a6ar : i ? L y t r~ c .^~: 'gµ•'.s. ,... ;+• it 1ti,+ ?y XS4 facing right bank F 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 XS3 facing left bank XS3 facing right bank XS4 facing left bank XS5 facing right bank XS5 facing left bank APPENDIX 13-VI. CROSS SECTION PHOTOS AND ANNUAL OVERLAYS OF PLOTS Photos taken 11/14/06 to 11/15/06 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 XS6 facing left bank XS6 facing right bank Little Bugaboo Creek XS 3, Year 1, 2, and 3 Overlay *Cross section re-established after year 1.* 1120 c 1115 m A) 1110 III 1105 -' ' 0 20 40 60 80 100 120 Station -?-Year 1 - 2/06 Year 2 - 11/06 --A Year 3 - 11/0 Little Bugaboo Creek XS 4, Year 1, 2, and 3 Overlay *Cross section re-established after year 1.* 1114 c 1112 0 1110 m 1108 w 1106 1104 0 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 10 20 30 40 50 60 70 80 Station ?---Year 1 - 2/06 ---Year 2 - 11/06 -*- Year 3 - 11/07] Little Bugaboo Creek XS 5, Year 1, 2, and 3 Overlay *Cross section re-established after year V 1104 1102 o 1100 1098 w 1096 1094 1092 0 10 20 30 40 50 60 Station +Year 1 -2/06 Year 2 - 11/06 -Year 3 - 11/07 Little Bugaboo Creek XS 6, Year 1, 2, and 3 Overlay *Cross section re-established after year V 1100 0 1098 > 1096 m w 1094 1092 0 Station ?--Year 1 - 2/06 Year 2 - 11/06 --Year 3 - 11/07 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 10 20 30 40 50 APPENDIX 13-VII. ANNUAL OVERLAYS OF LONGITUDINAL PLOTS UNNAMED TRIBUTARY As-Built and MY I longitudinal data were not provided. 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 UT to Little Bugaboo Creek Longitudinal Profile, Year 2 and 3 Overlay Overlay adjusted by matching cross section 1. a 0 c? a? w 1115 1110 1105 1100 1095 1090 1085 1000 0 500 Station 1500 2000 - Year 2 -11 /06 - Year 3 -11 /07 11/07 Beaver Dams - Water Surface - Bankfull • Grade Control 00056-Little Bugaboo Creek-MY3 Final Report URS 2/08 1 1 1 APPENDIX B-VII. ANNUAL OVERLAYS OF LONGITUDINAL PLOTS LITTLE BUGABOO CREEK 1 1 1 1 1 1 01111 - Little Bugaboo Creek - MY3 Final Report URS 2/08 Little Bugaboo Creek Longitudinal Profile, Year 1, 2, and 3 Overlay a 0 c? a? W 1120 1115 1110 1105 1100 1095 1090 1085 1080 0 500 1000 1500 Station (ft) Year 1 - 2/06 --- Year 2 -11 /06 Year 3 -11/07 A Year 3 -11/07 Beaver Dams 2000 2500 Water Surface - Bankfull ? Grade Control 00056 - Little Bugaboo Creek - MY3 Final Report URS 2108 Little Bugaboo Creek Longitudinal Profile, Year 1, 2, and 3 Overlay 1120 1115 1110 c 1105 - ? •°- 1100 > 1095 1090 1085 - 1080 ---- 2500 3000 3500 4000 4500 5000 Station (ft) ' earl-2/06 - earl-11/d6 Year 3- 11/07 Beaver Dams - Ier Surface -Bankfull Grade Control 00056-Little Bugaboo Creek-MY3 Final Report URS 2108 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 APPENDIX B-VIII. PEBBLE COUNT FREQUENCY DISTRIBUTION PLOTS UNNAMED TRIBUTARY 00056 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 f _Bed SuAace ? Material Size Range mm Count silt/day 0 -0.062 41 very fine sand 0.062 -0.126 fine sand 0.125 -0.25 1 medium sand 0.25 -0.5 13 coarse sand 0.5 - 1 6 very coarse sand 1 -2 very fine gravel 2 -4 fine gravel 4-6 fine gravel 6 -8 medium gravel 8 - 11 medium gravel 11 - 16 1 coarse gravel 16 - 22 2 coarse gravel 22 - 32 1 very coarse gravel 32 - 45 5 ve coarse ravel 45 - 64 7 small cobble 64 - 90 7 medium cobble 90 - 128 11 large cobble 128 -180 4 ve lar a cobble 180 -256 1 small boulder 256 -362 small boulder 362 -612 medium boulder 512 -1024 large boulder 1024 -2048 very large boulder 2048 -4096 total particle count: 100 bedrock ------------- clay hardpan ------------- detritusAvood ------------- artificial ------------- total count: 100 Note: XS 1 00056 - Little Bugaboo Creek - MY3 Final Report Bed Surface Pebble Count, Little Bugaboo Creek - Unnamed Tributary - 11/14/07 -+-cumulative % 100% silUcla sand ravel cobble boulder -# of partices 90% 45 40 80% ----- --- ------- ---------- I 35 70% I £ I 30 ? 0 C 60% 33 25 m 50% ---- - - - - o 20 m n 40% I I I I 15 y 30%- 20o I I I I 10 10% I 1 5 0% I 0 0.01 0.1 1 10 100 1 000 10000 particle size (mm) Size (mm) Size Distribution Ty pe D16 0.062 mean 2.4 silt/day 41% D35 0.062 dispersion 121.5 sand 20% D50 0.38 skewness 0.45 gravel 16% D65 32 cobble 23% D84 90 boulder 0% D95 130 Riffle Surface Pebble Count, Little Bugaboo Creek - Unnamed Tributary - 11/14/07 -cumulative % 100% silt/clay sand ravel cobble boulder -# of particles 90% 25 80% ----- --- ---- --- --------- - 20 70% I I C 60% 15 50% - - - - -- ---- --- --------- o a CL 40% 1 10 30% 1 I N 20% 1 I ? 5 10% I 0% I 0 0.01 0.1 1 10 100 1000 10000 particle size (mm) Size (mm) Size Distribution Type D16 0.3 3.4 mean 5.5 silt/day 15% D35 24 12 dispersion 92.6 sand 9% D50 55 17 skewness -0.63 gravel 32% D65 73 20 cobble 44% D84 100 29 boulder 0% D95 140 39 URS 2/08 APPENDIX B-VIII. PEBBLE COUNT FREQUENCY DISTRIBUTION PLOTS LITTLE BUGABOO CREEK 1 1 11111 - Little Bugaboo Creek - MY3 Final Report URS 2/08 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 wrne sere _ _ _ I Material Size Range (mm, Count silt/day 0 -0.062 3 very fine sand 0.062 -0.125 fine sand 0.125 -0-25 medium sand 0.25 -0.5 4 coarse sand 0.5 - 1 very coarse sand 1 -2 12 very fine gravel 2 -4 8 fine gravel 4 -6 19 fine gravel 6 -8 17 medium gravel 8 - 11 13 medium gravel 11 - 16 7 coarse gravel 16 - 22 8 coarse gravel 22 - 32 4 very coarse gravel 32 - 45 2 very coarse ravel 45 - 64 small cobble 64 - 90 2 medium cobble 90 -128 large cobble 128 -180 1 ve lar a cobble 180 -256 small boulder 256 -362 small boulder 362 -512 medium boulder 512 - 1024 large boulder 1024 -2048 ve lar a boulder 2048 -4096 total particle count: 100 bedrock ------------- clay hardpan ------------- detritus/wood ------------- artificial ------------- total count: 100 Note: Riffle Surface Material ? Size Range mm Count silt/day 0 -0.062 17 very fine sand 0.062 -0.125 fine sand 0.125 -0.25 medium sand 0.25 -0.5 16 coarse sand 0.5 - 1 12 very coarse sand 1 -2 49 very fine gravel 2 -4 fine gravel 4 -6 fine gravel 6 -8 medium gravel 8 - 11 medium gravel 11 - 16 coarse gravel 16 - 22 coarse gravel 22 - 32 very coarse gravel 32 - 45 very coarse gravel 45 - 64 small cobble 64 - 90 2 medium cobble 90 -128 3 large cobble 128 -180 1 very lar a cobble 180 -256 small boulder 256 -362 small boulder 362 -512 medium boulder 512 -1024 large boulder 1024 -2048 very large boulder 2048 -4096 total particle count: bedrock -------------------- clay hardpan - --------------------detritus/wood --------------------- artificial --------------------- Note: tota count: 00056 - Little Bugaboo Creek - MY3 Final Report Riffle Surface Pebble Count, Little Bugaboo Creek- 11/15/07 silt/clay sand ravel 1 0 -•-cumulative % cobble boulder -# of particles 0 % 90% 20 18 ---- -- 80% ------- -- - I 16 c Y 70% 14 60% 12 c v m 50% ---^ -- ------- -- 10 ° v 40% 8 m 30% 6 m 20% 4 10% 2 0% 0 0.01 0.1 1 10 100 1000 10000 particle size (mm) Size (mm) Size Distribution Type D16 1.7 mean 5.4 silt/clay 3% D35 4.7 dispersion 3.2 sand 16% D50 6.4 skewness -0.08 gravel 78°x6 D65 8.4 cobble 3% D84 17 boulder 0% D95 32 Riffle Surface Pebble Count, Little Bugaboo Creek- 11/15/07 cumulative % -# of parti cles silt/clay sand ravel cobble boulder 100% 60 90% c 80% - - - - -- ---- -- 50 70% 1 ' m 1 40 c 3 c 60% 1 v c 50% - - - - - - - - - - - 1 30 ° a 40% 30% I I I l 20 y 20% I 10 10% I 0% I I 0 0. 01 0.1 1 10 100 1000 10000 particle size (mm) Size (mm) Size Distribution Type D16 0.062 3.4 mean 0.3 silt/day 17% D35 0.56 12 dispersion 9.6 sand 77% D50 1.1 17 skewness -0.44 gravel 0% D65 1.3 20 cobble 6% D84 1.7 29 boulder 0% D95 76 39 URS 2/08 1 Riffle Surface Material ? Size Range mm ' Count silt/clay 0 -0.062 very fine sand 0.062 - 0.125 fine sand 0.125 -0.25 3 medium sand 0.25 -0.5 coarse sand 0.5 - 1 2 ve coarse sand 1 -2 13 very fine gravel 2 -4 1s fine gravel 4 -6 2 fine gravel 6 -8 8 medium gravel 8 - 11 1 medium gravel 11 - 16 2 coarse gravel 16 - 22 2 coarse gravel 22 - 32 1 very coarse gravel 32 - 45 very coarse gravel 45 - 64 16 small cobble 64 - 90 19 medium cobble 90 - 128 10 large cobble 128 -180 3 ve lar a cobble 180 -256 2 small boulder 256 -362 1 small boulder 362 -612 medium boulder 512 -1024 large boulder 1024 -2048 ve large boulder 2048 -4096 total particle count: bedrock --------------- day hardpan --------------- detntus/wood --------------------- artificial --------------- A Note: XS 6 tota c t: 00056 - Little Bugaboo Creek - MY3 Final Report Bed Surface Pebble Count, Little Bugaboo Creek- 11/15/07 100% silt/clay sand ravel cumulative % cobble boulder -# of particles 90% 20 18 80 % ---- -- --- --- ------ I 16 c M 70% ? 14 ° 60% 12 c v m 50% - - - - -- --- 10 ° v 40% 8 30% 1 1 I I 6 H 20°x6 4 10% 1 1 2 0% 1 0 0.01 0.1 1 10 100 1000 10000 particle size (mm) Size (mm) Size Distribution Type D16 0.062 mean 1.4 silt/day 19% D35 0.38 dispersion 27.3 sand 51% D50 0.69 skewness 0.18 gravel 22% D65 1.5 cobble 8% D84 30 boulder 0% D95 120 Riffle Surface Pebble Count, Little Bugaboo Creek -11/15/07 100% silt/clay sand ravel cumulative % cobble boulder -# of particles 90% 20 18 C 80% ---- -- ---- --- - -------- 16 M 70% 1q C 60% 12 U 50% - - - - -- ---- -- ----- 10 ° 0 0 40% 8 n 30% I 1 6 m 20% I 4 10% I 2 0% I 0 0.01 0.1 1 10 100 1000 10000 particle size (mm) Size (mm) Size Distribution Type D16 1.8 3.4 mean 12.7 silt/clay 0% D35 6 12 dispersion 13.8 sand 18% D50 46 17 skewness -0.43 gravel 47% D65 64 20 cobble 34% D84 90 29 boulder 1% D95 140 39 URS 2/08 1 1 1 1 1