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HomeMy WebLinkAbout20120182 Ver 1_Year 1 Monitoring Report_2015_20160224Annual Monitoring Report Final Monitoring Year 1 of 5 Hogan Creek Stream Mitigation Project DEQ Contract Number: 6496 USACE Action ID: SAW -2011-02268 DWR Project Number: 20120182 SCO# 09-08566-01 Surry County, North Carolina Data Collected: October 26 -December 11, 2015 Data Submitted: January 2016 Submitted to: rk� NCDEQ - Division of Mitigation Services 1652 Mail Service Center Raleigh, NC 27699-1652 CLearWaLerWW 32 Clayton Street Asheville, NC 28801 Prepared by: V1jIL N+IDS ENGGINNEERING 167-B Haywood Road Asheville, NC 28806 Table of Contents 1.0 PROJECT SUMMARY..........................................................................................1 1.1 Project Goals.......................................................................................................1 1.2 Project Performance Standards........................................................................1 1.3 Project Setting and Background....................................................................... 3 1.4 Project Components and Approach................................................................. 3 1.5 Project Performance.......................................................................................... 4 2.0 METHODOLOGY..................................................................................................5 3.0 REFERENCES........................................................................................................7 Appendix A. Figures and Background Tables Figure 1: Vicinity Map Table 1: Project Components and Mitigation Credits Table 2: Project Activity and Reporting History Table 3: Project Contacts Table 4: Project Baseline Information and Attributes Appendix B. Visual Assessment Data Figure 2: Current Condition Plan View (CCPV) Table 5a -d: Visual Stream Morphology Stability Assessment Table 6: Vegetation Condition Assessment Photo Point Photos Appendix C. Vegetation Plot Data Table 7: Vegetation Plot Results (All Stems) Vegetation Monitoring Plot Photos Appendix D. Stream Survey Data Cross -Sections with Annual Overlays Longitudinal Profiles with Annual Overlays Pebble Count Plots with Annual Overlays Table 8 a -c: Baseline Stream Data Summary Table 9: Monitoring Data — Dimensional Morphology Summary (Dimensional Parameters — Cross Sections) Table 10 a -c: Monitoring Data — Stream Reach Data Summary Appendix E. Hydrologic Data Table 11: Verification of Bankf ill Events Monthly Precipation Graph: 30-70 Percentile Surry County, NC I 1.0 PROJECT SUMMARY The NCDEQ Division of Mitigation Services (DMS) restored, enhanced, and preserved a total of 9,923 linear feet (LF) of stream channel at the Hogan Creek Stream Mitigation Site (Site) in Surry County, North Carolina generating 5,089 Stream Mitigation Units (SMUs). The restoration project was developed to fulfill stream mitigation requirements accepted by DMS for the Upper Yadkin River Basin Hydrologic Unit Code (HUC) 03040101. This report documents the results of the Monitoring Year 1 monitoring efforts (MY 1). 1.1 Project Goals The project goals identified in the Mitigation Plan (Confluence, 2012) include: • Improve water quality in Hogan Creek and the UTs through reductions in sediment and nutrient inputs from local sources; • Create conditions for dynamic equilibrium of water and sediment movement between the supply reaches and project reaches; • Promote floodwater attenuation and secondary functions associated with more frequent and extensive floodwater contact times; Improve in -stream habitat by increasing the diversity of bedform features; Enhance and protect native riparian vegetation communities; and • Reduce fecal, nutrient, and sediment loads to project streams by promoting and implementing livestock best management practices. 1.2 Project Performance Standards The performance of the project will be evaluated in accordance with the geomorphic, visual, hydrology, and vegetation components outlined in the Stream Mitigation Guidelines (USACE 2003). The following are specific performance standards. Performance Standards Proposed Ecological Service Metrics/Success Criteria Enhancements a. Evidence of at least two out -of -bank flows (wrack lines, crest gage data) by Flood attenuation year 5 b. BHR < 1.2 each year Fine sediment storage a. Evidence of fine sediment on floodplain at least twice by year 5 a. Annual changes in riffle cross sectional area generally modest (e.g. <20%) Maintenance of stable channel and exhibit a stabilizing trend bed and banks b. Annual width -depth ratio changes generally modest (e.g. <20%) and exhibit a stabilizing trend Hogan Creek Stream Mitigation Project/ 94708 1 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Monitoring will consist of collecting morphological, vegetative, and hydrological data to assess the project success based on the restoration goals and objectives on an annual basis for five years or until the success criteria are met. The success of the project will be assessed using measurements of the stream channel's dimension, substrate composition permanent photographs, vegetation, surface water hydrology, and visual assessments. Monitoring requirements include: a. No trends in widespread development of robust (e.g. comprised of coarse Requirements material and/or vegetated actively diverting flow) mid -channel bar features Equilibrium sediment transport Parameter Monitoring Feature b. Majority of riffle pebble counts indicate maintenance or coarsening of Reach (ft) UT2 UT3 substrate distributions a. Overall number and distributions of riffle and pool features are generally 2 maintained Maintenance of in -stream riffle b. Pool depths may vary from year to year, but the majority maintain depths and pool habitats sufficient to be observed as distinct features in the profile 1 c. Majority of riffle pebble counts indicate maintenance or coarsening of I substrate distributions Filtration of runoff a. Evidence of floating debris or fine sediment on buffer vegetation at least 1,500 twice by year 5 675 a. Density of 320 live, planted stems/ac at year 3; 260 live, planted stems/acre Riparian buffer habitat density at year 5 and diversity b. Four dominant species at year 5 shall be native c. <20% non-native species at year 5, based on measurements of aerial extent Protection of water quality from a. Observations of intact livestock fencing and absence of evidence of nutrient and pathogen inputs livestock access to streams each year Protection of banks from a. Observations of intact livestock fencing and absence of evidence of livestock trampling livestock impacts each year Re -vegetation of areas treated a. Bare soil areas shall comprise no more than 10 percent of the total treated for non-native species area, based on measurements of aerial extent Monitoring will consist of collecting morphological, vegetative, and hydrological data to assess the project success based on the restoration goals and objectives on an annual basis for five years or until the success criteria are met. The success of the project will be assessed using measurements of the stream channel's dimension, substrate composition permanent photographs, vegetation, surface water hydrology, and visual assessments. Monitoring requirements include: Hogan Creek Stream Mitigation Project/ 94708 2 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 M nitoting Requirements Parameter Monitoring Feature Quantity Length By Hogan Rl Hogan R2 UTl Reach (ft) UT2 UT3 Frequency Riffle XS 2 2 2 Annual Dnnension Poo1XS 1 1 I Annual Pattern/Profile Longitudinal Profile 1,500 1,000 675 Annual Substrate 100 Pebble Count 2 2 Annual Hydrology Crest Gauge I 1 Semi -Annual Vegetation Vegetation Plots 3 2 1 Annual Visual Assessment Project Site Y Y Y Y Y Semi -Annual Reference Photos Permanent Photo Points 18 6 3 10 4 Annual Hogan Creek Stream Mitigation Project/ 94708 2 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 1.3 Project Setting and Background The Site is located in the Piedmont physiographic province (NCGS 2004). The Piedmont is characterized by gently rolling, well rounded hills and long low ridges. Hogan Creek is a main tributary to the Yadkin River in the Upper Yadkin River Basin (HUC 03040101). The site is located approximately 2 miles south of NC 268 on Miller Gap Road, which bisects the project site at the triple box culvert over Hogan Creek. The project site is bordered to the north by Trajan Trail, to the south by Anderson Road, and to the west by Siloam Road. Latitude and longitude for the site are 36.321609 N and 80.602389 W, respectively. A vicinity map is included in Appendix A as Figure 1. Agriculture is the primary land use in the watershed (41% agriculture land cover). Non - forested buffers and livestock operations were identified as major stressors to water quality within the watershed. The site assessment phase of the project identified other stressors as well, including bank erosion, sediment deposition, disconnection of the streams and floodplains, and exotic plant species. The majority of the project area was utilized as a cattle operation for over fifty years. Cattle accessed Hogan Creek and the downstream reach of UT2 exacerbating bank erosion and allowing direct nutrient and fecal inputs to the streams. Deforested riparian buffers and levee construction along Hogan Creek and unnamed tributaries also contributed to channel degradation. 1.4 Project Components and Approach Stream restoration was accomplished using a natural channel design approach to restore appropriate channel dimension, pattern, and profile (Appendix A Table l; Appendix B Figure 2). These improved conditions will promote water and sediment transport equilibrium between the stream and its watershed, reconnect the stream to its floodplain and promote healthy in -stream and riparian habitats. The project goals were addressed through the following project objectives: • Restoration of the dimension, pattern, profile of 761 LF of Hogan Creek Reach 1, 992 LF of Hogan Creek Reach 2, 650 LF of UT2, and 275 LF of UT3. • Restoration of the dimension and profile (Enhancement I) of 1,200 LF of Hogan Creek Reach 1; • Limited channel work coupled with livestock exclusion and/or invasive species control (Enhancement Il) on 66 LF of UTI and 280 LF of UT2. • Livestock exclusion fencing and alternative water source installations; • Invasive plant species control measures across the entire project wherever necessary; and • Preservation of approximately 5,699 LF relatively un -impacted forested streams in a permanent conservation easement. The target stream type for Hogan Creek was a moderately sinuous, moderate width -depth ratio C4, which was appropriate for the relatively flat and wide alluvial valley. Reach 1 was constructed largely within the existing channel with in -stream structures incorporated Hogan Creek Stream Mitigation Project/ 94708 3 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 to promote sediment transport equilibrium, riffle and pool formation, and enhanced bank stability. Reach 2 of Hogan Creek was constructed mainly off-line in order to position the channel in the low point of the valley and improve floodplain access on both banks. The target stream type for UT2 and UT3 was a B4, with a moderate width -depth ratio and moderate sinuosity which is suited to the somewhat steeper and more confined tributary valleys. Bankfull benches cut on 10:1 slopes were provided on both banks. The off-line channel segments were designed to promote the formation of riffle and pool sequences while also affording the ability during construction to maintain clean flow separate in the original channel. The final design was completed in November of 2012. Construction activities and as - built surveys were completed in December of 2014. Planting of the Site took place in March of 2015. The baseline monitoring efforts began in May of 2015 and monitoring year 1 efforts began in October 2015. More detailed information related to the project activity, history, and contacts can be found in Appendix A, Tables 1, 2 and 3. 1.5 Project Performance The region experienced an unusual high amount of precipitation during fall/winter 2015. A nearby gauging station recorded over three inches of rain from October 2-4, 2015, resulting in a bankfull event. This storm event created several areas on Hogan Creek Reach 1 and Reach 2 that required maintenance. The following maintenance activities were completed during December 2015: • Hogan Reach 1 — Station 18+12. Cross vane was repaired to fix dislodged boulder. • Hogan Reach 1 — Station 20+12. Left bank was repaired to alleviate scour behind root wad cluster. • Hogan Reach 2 — Stations 34+00, 36+00, and 38+00. Substrate was added to three constructed riffles in order to address channel incision and repair damaged grade control structures. • Hogan Reach 2 — Station 36+00. Bank work was required on the left bank to repair 50 linear feet of erosion. A visual inspection of the entire project was conducted after the repair work to ensure that the project is performing well. Visual assessment tables and photo points are included in Appendix B. With the exception of two areas of aggradation and six areas of toe or lower bank erosion in Reaches 1 and 2 of Hogan Creek, the project as a whole is performing as designed and stream issues were minimal. The six areas, labeled on the current condition plan view (Figure 2 Sheets 1-3) as bank scour/erosion, are scheduled to be live staked during the winter of 2016. Year 2 monitoring efforts will include an evaluation of the need for additional adaptive management. Vegetation monitoring was conducted October 26, 2015. The MY1 vegetation plot data indicate that the project is on track to meet the interim criterion for survival and growth of 320 stems per acre at the end of the year three monitoring period. Vegetation plot data Hogan Creek Stream Mitigation Project/ 94708 4 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 and photographs are included in Appendix C. The average stem density for planted stems is 465 stems per acre. The site includes a diverse assemblage of 10 species of native trees and shrubs. Vegetation Plot 3, with a density of 243 stems per acre, was the only plot that did not meet the interim success criteria of 320 stems per acre. Planted and volunteer stem densities were between 243 and 6,232 stems per acre with an average of 2,226 stems per acre for the entire restoration site. Vegetation Plot 1 had a density of 6,232 stems per acre. The high density of volunteers in this plot may have skewed the results for the entire site. Densities are expected to decrease in Vegetation Plot 1 during future monitoring years as herbaceous vegetation becomes more established. Herbicide treatments of exotic invasive plants were conducted during the construction phase and again in July 2015. Observations indicate that the extent of invasive plants has been greatly reduced since the initial treatment; however additional treatments are warranted during 2016, particularly along the upstream reaches of UT2 and the downstream third of Hogan Creek Reach 1. A supplemental planting for the entire site occurred in January 2016. The geomorphic survey was conducted immediately after the repairs were completed. MY1 data indicate that the streams are generally stable and performing well. Stream survey data and summary tables are included in Appendix D. Cross-section data showed little change between MYO and MY1, with the exception of areas of minor bed scour in Hogan Creek Reaches 1 and 2. Changes in cross-sectional area and width to depth ratios were generally modest and expected to occur between the baseline and MY1 monitoring years. Longitudinal profile data indicated that the number and distribution of riffle and pool features remained consistent between monitoring years. Pool depths increased in all reaches particularly in Hogan Creek Reach 1 and 2. Riffle lengths and slopes remained consistent with previous monitoring data. Riffle pebble counts indicated a coarsening of bed material overall. The project is meeting the geomorphic performance standards set forth in the mitigation plan. A bankfull event was documented in October 2015 based on visual observation of wrack lines and sediment deposition throughout the floodplain. Both crest gauges recorded readings indicating a bankfull flow had occurred. A nearby gauging station recorded over three inches of rain from October 2-4, 2015 (NCCRONOS, 2016). Summary data related to performance of various project and monitoring elements can be found in the tables and figures in the report appendices. Narrative background and supporting information can be found in the mitigation plan document. All raw data, supporting tables, and figures in the appendices are available from DMS upon request. 2.0 METHODOLOGY The stream monitoring methodologies utilized in 2015 are based on standard guidance and procedures documents (Rosgen 1996 and USACE 2003). • Stream longitudinal profile and cross-section data were collected throughout three reaches using a total station survey. Approximately 3,175 linear feet of stream Hogan Creek Stream Mitigation Project/ 94708 5 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 and 9 cross-sections were surveyed. Cross-sections and longitudinal profile start and stop locations were permanently marked with capped rebar and PVC conduit. • 41 permanent photo points were established throughout the project to visually monitor stream stability and vegetation. Permanent photo points were marked with labeled wooden or PVC stakes. • Wolman pebble counts were conducted at four representative riffle cross-sections to evaluate particle size distribution over time. A minimum of 100 particles were selected at random and measured (Harrelson 1994). • Vegetation monitoring included documenting species composition and survival of planted and volunteer species within six randomly located vegetation plots. Each 0.025 acre vegetation plot was permanently marked with rebar and PVC conduit at all four corners. • Two crest gauges were installed and will be checked during semi-annual visits to determine if a bankfull event has occurred. The crest gauges were installed and surveyed at riffles on Hogan Creek Reach 2 and UT2. • Visual assessments will be performed on all stream and buffer restoration areas on a semi-annual basis. Problem areas will be noted such as channel instability (lateral and/or vertical instability, structure failure/instability and/or piping, headcuts), vegetation health (low stem density, vegetation mortality, invasive species or encroachment), beaver activity, and livestock access. Areas of concern will be mapped, photographed, and described in future monitoring reports. Hogan Creek Stream Mitigation Project/ 94708 6 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 3.0 REFERENCES Confluence Engineering, PC. 2012. Hogan Creek Stream Mitigation Plan. NCEEP, Raleigh, NC. Harrelson, Cheryl, C. Rawlins and J. Potyondy. 1994. Stream Channel Reference Sites: An Illustrated Guide to Field Technique. Gen. Tech. Rep. RM -245. Rocky Mountain Forest and Range Experiment Station. USDA Forest Service. Fort Collins, Colorado. NCCRONOS (North Carolina Climate Retrieval and Observations Network of the Southeast Database). 2015. State Climate Office of North Carolina. Version 2.7.2. Pilot Mountain 0.7 NW Station ID No. NC -SR -9. Accessed January 2016. NCGS (North Carolina Geological Survey). 2004. Physiography of North Carolina. Map compiled by the Division of Land Resources. Raleigh. Rosgen, D. 1996. Applied River Morphology. Wildland Hydrology. Pagosa Springs, Colorado. USACE (U.S. Army Corps of Engineers). 2003. Stream Mitigation Guidelines. U.S. Army Corps of Engineers — Wilmington District, U.S. Environmental Protection Agency, North Carolina Wildlife Resources Commission, and North Carolina Department of Environment and Natural Resources Division of Water Quality. Wilmington, North Carolina. Hogan Creek Stream Mitigation Project/ 94708 7 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix A Figures and Background Tables Hogan Creek Stream Mitigation/Project No. 94708 Directions: The Hogan Creek project site is located southeast of Level Cross in Surry County, 268 North Carolina. The site is accessed from 1-77 north out of Statesville. Turn east off 1-77 at exit 85 (NC 268 Bypass) and travel approximately 3 r�tG miles to the intersection with NC 268. Turn east and travel approximately 12 miles to a south turn onto Miller Gap Road (SR2088). The site is located approximately 2 miles south of NC 268 on Miller Gap Road, which bisects the project site at the bridge over Hogan Creek. The project site is bordered to the north by Trajan Trail, to the south by Anderson Road, and to the west by Siloam Road. Latitude and longitude for the site are 36.321609 N and 80.602389 W, respectively. Rd' (. jbOur V Project Boundary jk6 a Ln 6k O�Ikp fi 0 0 +� N Legend _ 'e Hogan Creek r Easement 0 0.25 0.5 1 Drawn by: RKM 7.10.15; CTC Project# 645ps`` Miles CLearWater Vicinity Map Surry County, , North Carolina NCDEQ - Division of Mitigation Services 1652 Mail Service Center 32 Clayton Street Figure I Raleigh, NC 27699-1652 Asheville, North Carolina 28801 Appendix A Figures and Background Tables Hogan Creek Stream Mitigation Project/94708 A-2 Annual Monitoring Report Monitoring Year 1 of 5 January 2016 Table 1. Project Components and Mitigation Credits Hogan Creek Stream Mitigation/ DMS Project No. 94708 Mitigation Credit Summaries Stream Riparian Wetland Non -Riparian Wetland Buffer Nitrogen Nutrient Offset Phos homes Nutrient Offset Overall Credit 5,089 N/A N/A I N/A N/A I N/A N/A Project Components Project Component or Reach ID Stationing Pre -project Footage or Acreage Restoration Footage or Acreage Restoration Level Restoration or Rest Equiv. Mitigation Ratio Mitigation Credits Notes Hogan Reach 1 10+00 - 22+00 1,331 1,200 P2 EI Ll 1,200 Hogan Reach 1 22+00 - 29+61 797 761 P2 R 1:1 743 Cmssin was removed fromtotal Hogan Reach 2 30+11 - 40+03 876 992 P2 R Ll 992 UTI,1A, IB U streamof10+32 1,517 1,517 Preservation P 5:1 303 UTI 10+32 - 10+98 66 66 1 P3 Ell 2.5:1 26 UT2,2A,2B,2C Upstream of6+50 3,230 3,230 Preservation P 5:1 646 UT2 6+50-9+30 280 280 P3 Ell 2.5:1 112 UT2 9+30- 15+80 633 650 P2 R 1:1 602 Crossing was removed from total U13 Ustreamof9+30 952 952 Preservation P 5:1 190 UT3 9+30- 12+05 260 275 P2 R 1:1 275 Length and Area Summations Restoration Level Stream(L' wear Feet ) Riparian Wetland (acres) Non -riparian Wetland (acres) Buller (Square feet) Upland (acres) Rivenne Non-Rivenne Restoration 2,678 Enhancement Enhancement 1 1,200 Enhancement 11 346 Creation Preservation 5,699 High Quality Preservation BMP Element Element Location Purpose/Function Notes Hogan Creek Stream Mitigation Project/94708 A-2 Annual Monitoring Report Monitoring Year 1 of 5 January 2016 Appendix A Figures and Background Tables Table 2. Project Activity and Reporting History Hogan Creek Stream Mitigation// DMS Pro'ect No. 94708 Activity or Deliverable Data Collection Complete Completion or Delivery M' ' p tion Plan Oct -11 Feb -l2 Final Des — Construction Plans Oct -11 Nov -12 Construction N/A Dec -14 Temporary S&E Mix Apphed N/A Dec -14 Permanent Seed Mix Applied N/A Dec -14 Containerized, bare root and B&B plantings for reach/segments N/A Mar -15 Baseline Monitoring Document (Year 0 Monitoring - Baseline) Jun- 15 Aug -15 Stream Repair/Maintenance N/A Dec -15 Year 1 Monitoring Dec -15 Jan -16 Supplemental Planting N/A Jan -16 Year 2 Monitoring Year 3 Monitorin Year 4 Monitorin Year 5 Monitorin N/A -Not Applicable Hogan Creek Stream Mitigation Project/94708 A-3 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix A Figures and Background Tables Table 3. Project Contacts Table Hogan Creek Stream Mitigation/ DMS Project No. 94708 Designer Wildlands Engineering, Inc. 167-B Haywood Road Asheville, NC 28806 Primary project design POC Andrew Bick 828-606-0306 Construction Contractor Carolina Environmental Contracting, Inc. 150 Pine Ridge Road Mount Airy, NC 27030 Construction contractor POC Wayne Taylor 336-341-6489 Survey Contractor Turner Land Surveying, PLLC PO Box 41023 Raleigh, NC 27629 Survey Contractor POC David Turner 919-623-5095 Planting Contractor Keller Environmental, LLC 7921 Haymarket Lane Raleigh,NC 27615 Planting Contractor POC Jay Keller 919-749-8259 Seeding Contractor Carolina Environmental Contracting, Inc. 150 Pine Ridge Road Mount Airy, NC 27030 Seeding Contractor POC Wayne Taylor 336-341-6489 Seed Mix Sources Green Resources 336-855-6363 Nursery Stock Suppliers Foggy Mountain Nursery 336-384-5323 Monitoring Performers Wildlands Engineering, Inc. 167-B Haywood Road Asheville, NC 28806 ClearWater Environmental Consultants 32 Clayton Street Asheville, NC 28801 Stream Monitoring POC Andrew Bick 828-606-0306 Vegetation Monitoring POC Andrew Bick 828-606-0306 Hogan Creek Stream Mitigation Project/94708 A-4 Annual Monitoring Report Monitoring Year 1 of 5 January 2016 Appendix A Figures and Background Tables Table 4. Project Baseline Information and Attributes Hogan Creek Stream Mitigation/ DMS Project No. 94708 County Project Area (acres) Project Coordinates (latitude and longitude) Surry 36 36.321609 N, 80.602389 W Project Watershed Summary Information Physiographic Province River Basin USGS Hydrologic Unit 8 -digit USGS Hydrologic Unit 14 -digit DWR Sub -basin Project Drainage Area (acres) Project Drainage Area Percentage of Impervious Area CGIA Land Use Classificationj Piedmont Yadkin 3040101 3040101110060 Pee Dee River Subbasin 03-07-02 1,514 ac (2.37 to) 0.40% Managed Herbaceous Cover, Broadleaf Deciduous Forest Land Reach Summary Information Reach 1 Reach 2 Parameters Hogan Creek Hogan Creek Main Stem UT1 Main Stem UT2 UT3 Length of Reach Post Construction (LF) 1,961 992 1,442 2,869 1,227 Valley classification (Rosgen) VIII VIII VI VI VI Drainage area (acres) 1,479 1,514 60 81 18 NCDWQ stream identification score 40 37 31 31.5 32.5 NCDWQ Water Quality Classification C C C C C Morphological Description (Rosgen stream type) C4 C4 E4b E4b G4 Evolutionary trend C -F C -F Eb-G Eb-G Eb-G Underlying mapped soils CsA CsA CsA, FsE FsE FsE Drainage class well drained well drained well drained well drained well drained Soil Hydric status not hydric not hydric not hydric not hydric not hydric Slope 0.007 0.005 0.031 0.021 0.030 FEMA classification AE AE Not in SFHA Not in SFHA Not in SFHA Native vegetation community Felsic Mesic Forest Felsic Mesic Forest Felsic Mesic Forest Felsic Mesic Forest Felsic Mesic Forest Percent composition of exotic invasive vegetationl 0 0 0 0 0 Wetland Summary Information Parameters Wetland 1 Wetland 2 Wetland 3 Wetland 4 Size of Wetland (acres) 0.09 0.02 0.13 0.10 Wetland Type riparian non-riverine riparian non-riverine riparian non-riverine riparian non-riverine Mapped Soil Series CsA CsA and FsE CsA and FsE CsA and FsE Drainage class well drained well drained well drained well drained Soil Hydric Status not hydric not hydric not hydric not hydric Source of Hydrology Creek (oxbow) Toe seep Toe seep Impoundment Hydrologic Impairment none none none none Native vegetation community Dist. Small Stream/ Narrow FP Forest Dist. Small Stream/ Narrow FP Forest Dist. Small Stream/ Narrow FP Forest Herbaceous Percent composition of exotic invasive vegetation 0 0 0 0 Regulatory Considerations Regulation Applicable? Resolved? Supporting Documentation Waters of the United States — Section 404 Y Y 02268 Waters of the United States — Section 401 Y Y NCDWR # 20120182 Endangered Species Act Y Y CE Approved 9/30/11 Historic Preservation Act N N/A - Coastal Zone Management Act (CZMA)/ Coastal Area Management Act (CAMA) N N/A - FEMA Floodplain Compliance Y Y LOMR Submitted 5/2015 Essential Fisheries Habitat N N/A - Hogan Creek Stream Mitigation Project/94708 A-5 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Hoaan Creek Stream Mitiaation/ Project No. 94708 -_-----_--_--_--_--_--_--_-----_--_--_-----_--_--------------------------------_- Sheet 1 r. ter. UT1 VT1 B '+ Wetland 3 UT1.• I _ - I_-� UT2 f f+ f+ f If UT2C UT2A }4� Wetland 4 N 0 125 250 500 Feet Drawn by: RKM 12.13.15; Project# 645; Aerial Photo NAIP (2014 Surry County, North Carolina i Sheet 3 j e'5°\\ Prd rk� NCDEQ - Division of Mitigation Services 1652 Mail Service Center Raleigh, NC 27699-1652 Structure Legend Constructed Riffle Root Wad CrossVane Rocksil l Log JHook CLearWaLer 32 Clayton Street Asheville, North Carolina 28801 Legend Crest Gauge Cross -Section Longitudinal Profile Start/End Enhancement Level II Enhancement Level I Restoration Preservation Fencing Sheet I-- — — InvasivesPresent Vegetation Plots Criteria Met Criteria Not Met Top of Bank Wetland Easement Integrated Current Condition Plan View DMS Project # 94708 Figure 2 r*% w -7#"% &"% r*% w -7#"% &"% 1 1 A* -1 1 r1 1 11 A• 1• 1• / 11 • 1 w l F�ik-W, Gr�TAkI Appendix B Visual Assessment Data Table 5a. Visual Stream Morphology Stability Assessment Hogan Creek Reach 1 Assessed Length: 1,961 feet Adjusted % Major Number Numberof Amount of % Stable, NumTotal Footage with for Channel Channel Sub -Category Metric Stable, Stable, Numberin Unstable Unstable Performing Stabilizing Stabilizing Stabilizing Stabilizing Category Performing As -built Segments Footage as Intended Foody Woody Woody as Intended Vegetation Vegetation Vegetation 1. Bed 1. Vertical Stability 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally 2 52 97% (Riffle and Run units) not to include point bars 2. Degradation- Evidence ofdowncuttmg 0 0 100% 2. Riffle Condition 1. Texture/Substrate - Riffle maintains coarser substrate 14 14 100% 3. Meander Pool 1 Depth Sufficient (Max Pool Depth : Mean Bankfafl Depth >: 1.6) 13 13 100° Condition 2. Length appropriate (>30% of centerline distance between tail ofupstream rim and 13 13 100° head of downstrem riffle) 4.Thalweg Position 1. Thalweg centering at upstream ofineander bend (Ram) 13 13E100 2. Thalweg centering at downstream of meander (Glide) 13 13 2. Bank 1. Scoured/Eroding Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion _ 130 93% 0 0 93 2. Undercut Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT 0 0 100% 0 0 100% include undercuts that are modest, appear sustainable and are providing habitat. 3. Mass Wasting Bank slumping calving, or collapse 0 0 100% 0 0 100% Totalsl 5 130 93% 1 0 1 0 1 93% 3. Engineered Structures 1. Overall Integrity Structures physically intact with no dislodged boulders or logs. 15 15 100° 2. Grade Control Grade control structures exhibiting maintenance ofgrade across the sill. 5 5 100% 2a. Piping Structures lacking any substantial flow underneath says or amts. 12 12 100° Bank erosion within the structures extent ofinfivence does not exceed 15%. (See 3. Bank Protection guidance for this table in EEP monitoring guidance document) 15 IS 100% Pool forming structures maintaining — Max Pool Depth: Mean Bankfull Depth ratio > 4. Habitat 1.6 Rootwads/logs providing some cover at base -flow. 15 15 100° Hogan Creek Stream Mitigation Project/94708 B-5 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Table 5b. Visual Stream Morphology Stability Assessment Hogan Creek Reach 2 Assessed Length : 992 feet Major Channel Category Channel Sub -Category Metric Number Stable, Performing as Intended Numberin As -built Numberof Unstable Segments Amount of Unstable Footage % Stable, Performing as Intended NumTotal Staber ilizing Stabilizing Foody Vegetation Footage with Stabilizing Woody Vegetation Adjusted % for Stabilizing Woody Vegetation 1. Bed 1. Vertical Stability (Riffle and Run units) 1. Aggradatlnn - Bar formation/growth sufficient to significantly deflect flow laterally not to include point bars 0 0 100% 2. Degradation - Evidence ofdowncuttmg 0 0 100% 2. Riffle Condition 1. Texture/Substrate - Riffle maintains coarser substrate 6 6 100% 3. Meander Pool Condition 1 Depth Sufficient (Max Pool Depth : Mean Bankfrdl Depth >: 1.6) 5 5 100° 2. Length appropriate (>30% of centerline distance between tail ofupstream ries and head of downstrem riffle) 5 5 100° 4.Thalweg Position 1. Thalweg centering at upstream ofineander bend (Run) 5 5100% 2. Tbalweg centering at downstream of meander (Glide) 5 5 100% 2. Bank 1. Scoured/Eroding Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion I 15 98% 0 0 98 2. Undercut Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 0 100% 0 0 100% 3. Mass Wasting Bank slumping calving, or collapse 0 0 100% 0 0 100% T.talsl 1 15 98% 0 0 98% 3. Engineered Structures 1. Overall Integrity Structures physically intact with no dislodged boulders or logs. 6 6 100° 2. Grade Control Grade control structures exhibiting maintenance ofgmde across the sr7L I 1 100% 2a. Piping Structures lacking any substantial flow underneath sus or arms. 5 5 100° 3. Bank Protection Bank erosion within the structures extent ofinfluence does not exceed 15%. (See guidance for this table in EEP monitoring guidance document) 6 6 100% 4. Habitat Pool forming structures maintaining — Max Pool Depth: Mean Bankfrdl Depth ratio > 1.6 Rootwads/logs providing some cover at base -flow. 6 6 100° Hogan Creek Stream Mitigation Project/94708 B-6 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Table 5c. Visual Stream Morphology Stability Assessment UT2 Assessed Len th:930feet Major Channel Category Channel Sub -Category Metric Number Stable, Performing as Intended Numberin As -built Numberof Unstable Segments Amount of Unstable Footage % Stable, Perfonrring as Intended NumTotal Stabilizing Stabilizing Foody Vegetation Footage with Stabilizing Woody Vegetation Adjusted % for Stabilizing Woody Vegetation 1. Bed 1. Vertical Stability (Riffle and Run units) 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally not to include point bars 0 0 100% 2. Degradation - Evidence ofdowncuttmg 0 0 100% 2. Riffle Condition 1. Texture/Substrate - Riffle maintains coarser substrate 14 14 100% 3. Meander Pool Condition 1 Depth Sufficient (Max Pool Depth : Mean Bankfa➢ Depth >: 1.6) 13 13 100° 2. Length appropriate (>30% of centerline distance between tail ofupstream rim and head of downstrem riffle) 13 13 100° 4.Thalweg Position 1. Thalweg centering at upstream ofineander bend (Ran) 13 13E100 2. Tbalweg centering at downstream of meander (Glide) 13 13 2. Bank 1. Scoured/Eroding Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion 0 0 100% 0 0 100% 2. Undercut Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 0 100% 0 0 100% 3. Mass Wasting Bank slumping calving, or collapse 0 0 100% 0 0 100% Totalsl 0 0 100% 0 0 100 3. Engineered Structures 1. Overall Integrity Structures physically intact with no dislodged boulders or logs. 6 6 100° 2. Grade Control Grade control structures exhibiting maintenance ofgrade across the sr7L 2 2 100% 2a. Piping Structures lacking any substantial flow underneath sus or arms. 4 4 100° 3. Bank Protection Bank erosion within the structures extent ofinfluence does not exceed 15%. (See guidance for this table in EEP monitoring guidance document) 6 6 100% 4. Habitat Pool forming structures maintaining — Max Pool Depth: Mean Bankfull Depth ratio > 1.6 Rootwads/logs providing some cover at base -flow. 6 6 100° Hogan Creek Stream Mitigation Project/94708 B-7 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Table 5d. Visual Stream Morphology Stability Assessment UT3 Assessed Len th:275feet Major Channel Category Channel Sub -Category Metric Number Stable, Stable, Performing as Intended Numberin As -built Numberof Unstable Segments Amount of Unstable Footage % Stable, Performing as Intended NumTotal Stabilizing Stabilizing Foody Vegetation Footage with Stabilizing Woody Vegetation Adjusted % for Stabilizing Woody Vegetation 1. Bed 1. Vertical Stability (Riffle and Run units) 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally not to include point bars 0 0 100% 2. Degradation - Evidence ofdowncuttmg 0 0 100% 2. Riffle Condition 1. Texture/Substrate - Riffle maintains coarser substrate 4 4 100% 3. Meander Pool Condition 1 Depth Sufficient (Max Pool Depth : Mean Bankfa➢ Depth >: 1.6) 4 4 100° 2. Length appropriate (>30% of centerline distance between tail ofupstream ries and head of downstrem riffle) 4 4 100° 4.Thalweg Position 1. Thalweg centering at upstream ofineander bend (Ran) 4 4100% 2. Thalweg centering at downstream of meander (Glide) 4 4 100% 2. Bank 1. Scoured/Eroding Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion 0 0 100% 0 0 100% 2. Undercut Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 0 100% 0 0 100% 3. Mass Wasting Bank slumping calving, or collapse 0 0 100% 0 0 100% Totalsl 0 0 100% 0 0 100 3. Engineered Structures 1. Overall Integrity Structures physically intact with no dislodged boulders or logs. 1 1 100° 2. Grade Control Grade control structures exhibiting maintenance ofgrade across the sr7L 1 1 100% 2a. Piping Structures lacking any substantial flow underneath sus or arms. 1 1 100° 3. Bank Protection Bank erosion within the structures extent ofinfluence does not exceed 15%. (See guidance for this table in EEP monitoring guidance document) 1 1 100% 4. Habitat Pool forming structures maintaining — Max Pool Depth: Mean Bankfu l Depth ratio > 1.6 Rootwads/logs providing some cover at base -flow. 1 1 100° Hogan Creek Stream Mitigation Project/94708 B-8 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Table 6. Vegetation Condition Assessment Hogan Creek/94708 Planted Acreage 6.7 Mapping CCPV Numberof Combined %of Planted Vegetation Category Definitions Threshold Depiction Polygons Acreage Acreage Pattern and 1. Bare Areas Very limited cover ofboth woody and herbaceous material 0.1 acres 0 0.00 0.0% Color 2. Low Stem Density Areas Woody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria. 0.1 acres Pattern and 0 0.00 0.0% Color Total 0 0.00 0.0% 3. Areas of Poor Growth Rates or Vigor Areas with woody stems of a size class that are obviously small given the monitoring year. 0.25 acres Pattern and 0 0.00 0.0% Color Cumulative Total 0 0.00 0.0% Easement Acreage 36 % of Mapping CCPV Numberof Combined Easement Vegetation Category Definitions Threshold Depiction Polygons Acreage Acreage 4. Invasive Areas of Concern Areas or points (iftoo small to render as polygons at map scale). 1000 SF Cross Hatch 14 2.00 5.6% Pink 5. Easement Encroachment Areas Areas or points (iftoo small to render as polygons at map scale). none Pattern and 0 0.00 0.0% Color Hogan Creek Stream Mitigation Project/94708 B-9 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Photo Point 1 B — Downstream Photo Point 1C— Upstream Hogan Creek Stream Mitigation Project/94708 B-11 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 1_ 50, Atoopl'4 '1' SSSFFFSF'�� }o P f t � a �- .. 1 SsYr•1 � _ �'�, 'k � ty � � - A _ d f _ J^il • - _ ,g1�*"°ill? c as!' Vii` 3 ' .,. � � is �. �.N �'.T �� .L .`� ��� �� Q'+s'•U' � p 41 n_ f r, fh ..Ca - � � <:d-�- r .- Z •A+. A Rte. ..� e`. L _� .� Appendix B Visual Assessment Data Photo Point 5 — Downstream Photo Point 6 - Downstream Hogan Creek Stream Mitigation Project/94708 B-14 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Photo Point 7 — Downstream Photo Point 8 — Upstream Hogan Creek Stream Mitigation Project/94708 B-15 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data PINK;�t �1 � � rw�h�t'�f�, � 'ib.'...1F ,�• . } .G Photo Point 9 — Downstream Photo Point 10 — Downstream Hogan Creek Stream Mitigation Project/94708 B-16 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Photo Point 11 — Downstream Photo Point 12 — Downstream Hogan Creek Stream Mitigation Project/94708 B-17 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Photo Point 13 — Downstream Photo Point 14 — Downstream Hogan Creek Stream Mitigation Project/94708 B-18 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Photo Point 15 — Downstream Photo Point 16 — Downstream Hogan Creek Stream Mitigation Project/94708 B-19 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 ya� h• r, ? R•..�i � Y r• `�rI ty V • � � 9Fy Appendix B Visual Assessment Data Photo Point 19 — Downstream Photo Point 20 — Downstream Hogan Creek Stream Mitigation Project/94708 B-22 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Photo Point 21 — Downstream Photo Point 22 — Downstream Hogan Creek Stream Mitigation Project/94708 B-23 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 J nr m F, • y'!G � ✓.W;'- } 4�' " i '-.'� `k�„�� r7e ".�'^ ^'k'�l.t ��� ... +'A'a'"r =itr� b 3 I p X015 Appendix B Visual Assessment Data Photo Point 25 — Upstream Photo Point 26 — Downstream Hogan Creek Stream Mitigation Project/94708 B-25 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix B Visual Assessment Data Photo Point 27 — Downstream Photo Point 28 — Upstream Hogan Creek Stream Mitigation Project/94708 B-26 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 +7- VIPa� �o,r, 'Or 3 r: ' r _ x� �gT � �h.- �rJ• i.�� �1 ar��� 4.-rµ- ,� �.{•r J3� u.� I M7 � Vy zzYItift tet; ti {'1 T +7- VIPa� �o,r, 'Or 3 r: ' r _ x� �gT � �h.- �rJ• i.�� �1 ar��� 4.-rµ- ,� �.{•r J3� u.� ��h�. `" _� ;� �; Vin-. �.-.- .. � � ` .. �,�, �S Appendix B Visual Assessment Data Photo Point 30 — Downstream Photo Point 31 — Downstream Hogan Creek Stream Mitigation Project/94708 B-29 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix C Vegetation Plot Data Appendix C Vegetation Plot Data Table 7. Vegetation Plot Results (All Stems) Current Data (MY1 2015) Annual Means Annual Means Common Plot 1 Plot 2 Plot 3 Plot 4 Plot 5 Plot 6 MYO (2015) MY1 (2015) Name Type P T P T P T P T P T P T P T P T Acer rubrum Red maple Tree 0 0 0 7 0 0 0 0 0 0 0 0 0 1 0 7 Betula nigra River birch Tree 3 115 0 25 1 3 6 6 0 0 0 0 10 10 10 149 Fraxinus pemsylvanica Green ash Tree 4 4 3 3 2 2 4 4 1 1 0 0 17 17 14 14 Juglans nigra Black walnut Tree 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 Liriodendron tulipifera Tulip poplar Tree 0 0 0 1 0 0 0 68 0 0 0 1 0 0 0 70 Nyssa s lvatica Black gum Tree 0 0 0 0 0 0 0 0 5 5 7 7 12 12 12 12 Platanus occidentalis American sycamore Tree 2 2 4 5 1 1 7 7 0 1 0 1 13 13 14 17 Prunus serotina Black cherry Tree 0 30 0 2 0 3 0 0 0 6 0 0 0 27 0 41 Quercus alba White oak Tree 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 Quercus pheflos Willow oak Tree 0 0 1 1 0 0 0 0 3 3 0 0 6 6 4 4 Quercus rubra Northern red oak Tree 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 Quercus lyrata Overcup oak Tree 2 2 1 1 2 2 2 2 3 3 5 5 13 13 15 15 Plot area (acres) 0.025 0.025 0.025 0.025 0.025 0.025 0.15 0.15 Species count 4 6 4 8 4 5 4 5 4 6 2 4 6 10 6 10 Stem Count 11 154 1 9 1 45 6 11 19 87 12 19 12 14 71 102 69 330 Stems per Acre 1 445 6,232 364 11,8211243 1445 769 3,521 486 769 486 567 479 688 465 2,226 Meets Success Criteria Fails to Meet Interim Success Criteria Type = Tree, Shrub, Uvestake P= Planted T =Total Hogan Creek Stream Mitigation Project/94708 C-1 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix C Vegetation Plot Data Vegetation Monitoring Plot 1 Vegetation Monitoring Plot 2 Monitoring Year 1 — October 26, 2015 Hogan Creek Stream Mitigation Project/94708 C-2 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix C Vegetation Plot Data Vegetation Monitoring Plot 3 Vegetation Monitoring Plot 4 Monitoring Year 1 — October 26, 2015 Hogan Creek Stream Mitigation Project/94708 C-3 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix C Vegetation Plot Data Vegetation Monitoring Plot 5 Vegetation Monitoring Plot 6 Monitoring Year 1 — October 26, 2015 Hogan Creek Stream Mitigation Project/94708 C-4 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data Appendix D Cross -Section 1 — Left Top of Bank Stream Survey Data Cross -Section 1— Right Top of Bank Reach 1 Hogan Creek Cross -Section 1 - Riffle Station 22+67 996 995 994 993 d ii 992 c 2 m 991 LU 990 989 988 987 0+00 0+10 0+20 0+30 0+40 0+50 Distance (Feet) MY0 6/8/2015 MY1 12/212015 Hogan Creek Stream Mitigation Project/94708 D-1 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Cross -Section 2 — Left Top of Bank Stream Survey Data Cross -Section 2 — Right Top of Bank Hogan Creek Stream Mitigation Project/94708 D-2 Annual Monitoring Report Monitoring Year 1 of 5 January 2016 Reach 1 Hogan Creek Cross -Section 2 - Pool Station 23+07 995 994 993 992 991 d -------------------------------- -------------------- LL 0 990 d w 989 988 987 986 985 0+00 0+10 0+20 0+30 0+40 0+50 0+60 Distance (Feet) MY0 6/9/2015 -- MY1 12/212015 Hogan Creek Stream Mitigation Project/94708 D-2 Annual Monitoring Report Monitoring Year 1 of 5 January 2016 Appendix D Cross -Section 3 — Left Top of Bank Stream Survey Data Cross -Section 3 — Right Top of Bank Reach 1 Hogan Creek Cross -Section 3 - Riffle Station 26+78 993 992 991 990 . 989 iv m LL 0 988 ----------------d w 987 986 985 984 983 0+00 0+10 0+20 0+30 0+40 0+50 0+60 Distance (Feet) -MY061912015 MY1121212015 ----- BKF Hogan Creek Stream Mitigation Project/94708 D-3 Annual Monitoring Report Monitoring Year 1 of 5 January 2016 Appendix D Cross -Section 4 — Left Top of Bank Stream Survey Data Cross -Section 4 — Right Top of Bank Reach 2 Hogan Creek Cross -Section 4 - Pool Station 33+68 989 988 987 986 985 m m LL 0 984 d w 983 982 981 980 979 0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+70 0+80 0+90 Distance (Feet) -MY0619/2015-MY11202015 ----- BKF Hogan Creek Stream Mitigation Project/94708 D-4 Annual Monitoring Report Monitoring Year 1 of 5 January 2016 Appendix D Cross -Section 5 — Left Top of Bank Stream Survey Data Cross -Section 5 — Right Top of Bank Reach 2 Hogan Creek Cross -Section 5 - Riffle Station 34+49 989 988 987 986 ^ 985 w v LL 0 984 16 --- --------------- ---------------- -- m w 983 982 981 980 979 0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+70 Distance (Feet) - MY0 6/9/2015 - MY7 121212015 Hogan Creek Stream Mitigation Project/94708 D-5 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Cross -Section 6 — Left Top of Bank Stream Survey Data Cross -Section 6 — Right Top of Bank Reach 2 Hogan Creek Cross -Section 6 - Riffle Station 37+95 987 986 985 984 983 d w , LL 0 ---- --•----------------------------• - 982 .2 m LU 981 980 979 978 977 0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+70 Distance (Feet) - MY0 6/9/2015 - MY7 121212015 Hogan Creek Stream Mitigation Project/94708 D-6 Annual Monitoring Report Monitoring Year 1 of 5 January 2016 Appendix D Cross -Section 7 — Left Top of Bank Stream Survey Data Cross -Section 7 — Right Top of Bank UT 2 Cross -Section 7 - Riffle Station 13+25 997 996 995 994 w ii 993 c 0 m 992 LU 991 990 989 988 0+00 0+10 0+20 0+30 0+40 0+50 0+60 Distance (Feet) -MYO 6/9/2015-MY7121212015 ----- BKF Hogan Creek Stream Mitigation Project/94708 D-7 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Cross -Section 8 — Left Top of Bank Stream Survey Data Cross -Section 8 — Right Top of Bank UT 2 Cross -Section 8 - Pool Station 13+74 995 994 993 992 w ii 991 C O .5 m 990 LU 989 ------------ 988 987 986 0+00 0+10 0+20 0+30 0+40 0+50 0+60 Distance (Feet) -MY061912015-MY7121212015 ----- BKF Hogan Creek Stream Mitigation Project/94708 D-8 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Cross -Section 9 — Left Top of Bank Stream Survey Data Cross -Section 9 — Right Top of Bank Hogan Creek Stream Mitigation Project/94708 D-9 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 UT 2 Cross -Section 9 - Riffle Station 14+73 993 992 991 990 m i 989 c 0 .5 m 988 w 987,41 986 985 984 0+00 0+10 0+20 0+30 0+40 0+50 Distance (Feet) - MY0 6/9/2015 - MY7 121212015 Hogan Creek Stream Mitigation Project/94708 D-9 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data Hogan Creek Longitudinal Profile Reach 1 Station 14+29 - 29+61 998 997 e 996 A 995 • 994 993 e e 992 991 d 990 LL p 989 cc d 988 W 987 A 986 XS1 985 XS2 ' 984 � 983 982 981 980 14+00 16+00 18+00 20+00 22+00 24+00 26+00 28+00 30+00 Distance (Feet) Longitudinal profile stationing does not match As -Built stationing due to differences in field data collection methodologies. —Baseline (MYO) 6/9/2015 MY1 12/2/2015 Water Surface BKF Structures Linear (BKF) Hogan Creek Stream Mitigation Project/94708 D-10 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data Hogan Creek Stream Mitigation Project/94708 D-1 1 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Hogan Creek Longitudinal Profile Reach 2 Station 30+11 - 40+96 987 0 986 0 985 984 983 0 982 m • 0 s LL p 981 > i W 980 i 979 XS4 XS5 978 977 XS6 976 975 30+00 32+00 34+00 36+00 38+00 40+00 Distance (Feet) Longitudinal profile stationing does not match As -Built stationing due to differences in field data collection methodologies. —Baseline (MYO) 6/9/2015 MY1 12/2/2015 Water Surface BKF Structures Linear (BKF) Hogan Creek Stream Mitigation Project/94708 D-1 1 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data UT2 Longitudinal Profile Station 8+70 - 15+45 1000 999 998 997 996 995 994 993 y 992 LL p 991 a d 990 W 989 988 � o 987 986 8 985 984 S9 983 — 982 8+50 9+50 10+50 11+50 12+50 13+50 14+50 15+50 Distance (Feet) Longitudinal profile stationing does not match As -Built stationing due to differences in field data collection methodologies. —Baseline (MYO) 6/9/2015 MY1 12/2/2015 Water Surface BKF Linear (BKF) Hogan Creek Stream Mitigation Project/94708 D-12 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Summary Data D50 23 D84 44 D95 59 120% Hogan Creek Stream Mitigation / 94708 Cross Section 1 - Riffle Reach 1 100% 80% MY1 Material Particle Size Class (mm) Total Individual Cumulative silt/clay 0.062 a v 0.0% 0% veryfinesand 0.125 1 1.0% 1% fine sand 0.250 0.0% 1% medium sand 0.50 0.0% 1% coarse sand 1.0 0.0% 1% very course sand 2.0 0.0% 1% very fine gravel 4.0 0.0% 1% fine gravel 5.7 0.0% 1% fine gravel 8.0 8 7.8% 9% medium gravel 11.3 13 12.6% 21% medium gravel 16.0 7 6.8% 28% course gravel 22.3 19 18.4% 47% course gravel 32 20 19.4% 66% very course gravel 45 20 19.4% 85% very course gravel 64 13 12.6% 98% small cobble 90 2 1.9% 100% medium cobble 128 0.0% 100% large cobble 180 0.0% 100% very large cobble 256 0.0% 100% small boulder 362 0.0% 100% small boulder 512 0.0% 100% medium boulder 1024 0.0% 100% large boulder 2048 0.0% 100% bedrock 4096 0.0% 100% Total 103 100.0% 100% Summary Data D50 23 D84 44 D95 59 120% 100% 80% a LL 60% ao% a v 20% E L) O% N O O � � r O O 30.0% 25.0% 20.0% a 0 c 15.0% v a 10.0% 5.0% 0.0% N O O � Stream Survey Data Hogan Creek Pebble Count- Cumulative Percent Cross-section 1 - Riffle o O o eNi m N n N a 4 N N Particle Size (mm) -MY05128115-MY110/26115 Hogan Creek Pebble Count- Percent Individual Cross-section 1 - Riffle N Particle Size (mm) MYO 5/28/2015 MY110/26/2015 Hogan Creek Stream Mitigation Project/94708 D-13 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Summary Data D50 29 D84 44 D95 70 Hogan Creek Stream Mitigation / 94708 Cross Section 3 - Riffle Reach 1 100% MY1 Material Particle Size Class (mm) Total Individual Cumulative silt/clay 0.062 0.0% 0% veryfinesand 0.125 a v 0.0% 0% fine sand 0.250 E 0.0% 0% medium sand 0.50 0.0% 0% coarse sand 1.0 0.0% 0% very course sand 2.0 0.0% 0% very fine gravel 4.0 0.0% 0% fine gravel 5.7 1 1.0% 1% fine gravel 8.0 0.0% 1% medium gravel 11.3 4 4.0% 5% medium gravel 16.0 4 4.0% 9% course gravel 22.3 18 18.0% 27% course gravel 32 33 33.0% 60% very course gravel 45 26 26.0% 86% very course gravel 64 8 8.0% 94% small cobble 90 4 4.0% 98% medium cobble 128 2 2.0% 100% large cobble 180 0.0% 100% very large cobble 256 0.0% 100% small boulder 362 0.0% 100% small boulder 512 0.0% 100% medium boulder 1024 0.0% 100% large boulder 2048 0.0% 100% bedrock 4096 0.0% 100% Total 100 100.0% 100% Summary Data D50 29 D84 44 D95 70 35.0 30.0% 25.0% a 20.0% 15.0% a 10.0% 5.0% 0.0% b N O N O O Stream Survey Data Hogan Creek Pebble Count- Cumulative Percent Cross-section 3 - Riffle 0 0 o eNi m N n N a 4 O N Particle Size (mm) -MY05128/15-MY110/26115 Hogan Creek Pebble Count- Percent Individual Cross-section 3 - Riffle O O O O N N 4 O 16 N Particle Size (mm) ■MY05/2812015 ■MY110I26N5 Hogan Creek Stream Mitigation Project/94708 D-14 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 120% 100% 80% a LL 60% ao% a v 20% E L) 0% c � r O O 35.0 30.0% 25.0% a 20.0% 15.0% a 10.0% 5.0% 0.0% b N O N O O Stream Survey Data Hogan Creek Pebble Count- Cumulative Percent Cross-section 3 - Riffle 0 0 o eNi m N n N a 4 O N Particle Size (mm) -MY05128/15-MY110/26115 Hogan Creek Pebble Count- Percent Individual Cross-section 3 - Riffle O O O O N N 4 O 16 N Particle Size (mm) ■MY05/2812015 ■MY110I26N5 Hogan Creek Stream Mitigation Project/94708 D-14 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Summary Data D50 32 D84 51 D95 72 Hogan Creek Stream Mitigation / 94708 Cross Section 5 - Riffle Reach 2 100% MY1 Material Particle Size Class (mm) Total Individual Cumulative silt/clay 0.062 0.0% 0% veryfinesand 0.125 a v 0.0% 0% fine sand 0.250 E 0.0% 0% medium sand 0.50 0.0% 0% coarse sand 1.0 0.0% 0% very course sand 2.0 0.0% 0% very fine gravel 4.0 0.0% 0% fine gravel 5.7 0.0% 0% fine gravel 8.0 1 1.0% 1% medium gravel 11.3 1 1.0% 2% medium gravel 16.0 4 4.0% 6% course gravel 22.3 15 15.0% 21% course gravel 32 30 30.0% 51% very course gravel 45 28 28.0% 79% very course gravel 64 14 14.0% 93% small cobble 90 6 6.0% 99% medium cobble 128 1 1.0% 100% large cobble 180 0.0% 100% very large cobble 256 0.0% 100% small boulder 362 0.0% 100% small boulder 512 0.0% 100% medium boulder 1024 0.0% 100% large boulder 2048 0.0% 100% bedrock 4096 0.0% 100% Total 100 100.0% 100% Summary Data D50 32 D84 51 D95 72 ao.o% 35.0% 30.0% 5 25.0% 15 20.0% y 15.0% a 10.0% 5.0% 0.0% b N O N O O Stream Survey Data Hogan Creek Pebble Count- Cumulative Percent Cross-section 5- Riffle 0 0 o eNi m N n N a 4 O N Particle Size (mm) -MYO5128115-MY110/26115 Hogan Creek Pebble Count- Percent Individual Cross-section 5- Riffle O O O O N N 4 0 6 N Particle Size (mm) ■MY05/28/15 ■MY110/26N5 Hogan Creek Stream Mitigation Project/94708 D-15 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 120% 100% 80% a LL 60% ao% a v 20% E L) 0% Nr• O O G N r O O ao.o% 35.0% 30.0% 5 25.0% 15 20.0% y 15.0% a 10.0% 5.0% 0.0% b N O N O O Stream Survey Data Hogan Creek Pebble Count- Cumulative Percent Cross-section 5- Riffle 0 0 o eNi m N n N a 4 O N Particle Size (mm) -MYO5128115-MY110/26115 Hogan Creek Pebble Count- Percent Individual Cross-section 5- Riffle O O O O N N 4 0 6 N Particle Size (mm) ■MY05/28/15 ■MY110/26N5 Hogan Creek Stream Mitigation Project/94708 D-15 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Summary Data D50 30 D84 53 D95 69 Hogan Creek Stream Mitigation / 94708 Cross Section 6 - Riffle Reach 2 100% MY1 Material Particle Size Class (mm) Total Individual Cumulative silt/clay 0.062 0.0% 0% veryfinesand 0.125 a v 0.0% 0% fine sand 0.250 E 0.0% 0% medium sand 0.50 0.0% 0% coarse sand 1.0 0.0% 0% very course sand 2.0 0.0% 0% very fine gravel 4.0 1 1.0% 1% fine gravel 5.7 0.0% 1% fine gravel 8.0 2 2.0% 3% medium gravel 11.3 2 2.0% 5% medium gravel 16.0 10 10.0% 15% course gravel 22.3 16 16.0% 31% course gravel 32 22 22.0% 53% very course gravel 45 22 22.0% 75% very course gravel 64 19 19.0% 94% small cobble 90 5 5.0% 99% medium cobble 128 1 1.0% 100% large cobble 180 0.0% 100% very large cobble 256 0.0% 100% small boulder 362 0.0% 100% small boulder 512 0.0% 100% medium boulder 1024 0.0% 100% large boulder 2048 0.0% 100% bedrock 4096 0.0% 100% Total 100 100.0% 100% Summary Data D50 30 D84 53 D95 69 30.0 25.0% 20.0% a 15.0% a 10.0% 5.0% 0.0% b N O N O O Stream Survey Data Hogan Creek Pebble Count- Cumulative Percent Cross-section 6 - Riffle 0 0 o eNi m N n N a 4 O N Particle Size (mm) -MYO5128115-MY110/26115 Hogan Creek Pebble Count- Percent Individual Cross-section 6 - Riffle O O O O N N 4 0 6 N Particle Size (mm) ■MY05/28/15 ■MY110/26N5 Hogan Creek Stream Mitigation Project/94708 D-16 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 120% 100% 80% a LL 60% ao% a v 20% E L) 0% o � r O O 30.0 25.0% 20.0% a 15.0% a 10.0% 5.0% 0.0% b N O N O O Stream Survey Data Hogan Creek Pebble Count- Cumulative Percent Cross-section 6 - Riffle 0 0 o eNi m N n N a 4 O N Particle Size (mm) -MYO5128115-MY110/26115 Hogan Creek Pebble Count- Percent Individual Cross-section 6 - Riffle O O O O N N 4 0 6 N Particle Size (mm) ■MY05/28/15 ■MY110/26N5 Hogan Creek Stream Mitigation Project/94708 D-16 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data N/A - Not Applicable - Information Unavailable Hogan Creek Stream Mitigation Project/94708 D-17 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Table 8a. Baseline Stream Data Sumniary Hogan Creek/94708 - Reach 1 1,532 feet) Parameter Gauge Regional Curve Pre -Existing Condition Reference Reach Data Design Monitoring Baseline Dimension and Substrate - Riffle Only LL UL Eq. Min Mean Med Max SD n Min Mean Med Max SD n Min Med Max Min Mean Med Max SD n Bankfull Width (ft) - _ _ - 21.5 - 25.7 29.7 - - 27.2 - 30.4 33.6 - 22.5 23.3 24.0 22.8 24.2 24.2 25.6 N/A 2 Floodprone Width (ft) 178.0 - 220.0 246.0 - - 72.1 - 72.3 72.5 - - 100.0 150.0 200.0 >100 >100 >100 >100 N/A 2 Bankfull Mean Depth (ft) _ _ 2.0 - 1.9 2.1 - - 1.9 - 2.0 2.2 - 1.8 1.9 2.2 1.7 1.8 1.8 1.8 N/A 2 Bankfull Max Depth (ft) _ 2.5 - 2.7 3.2 - - 2.4 - 2.5 2.7 - 2.5 1 2.6 2.8 2.7 2.8 2.8 2.9 N/A 2 Bankfull Cross Sectional Area (fC) - - 45.1 - 48.6 59.3 - - 50.8 - 61.6 72.4 - 40.6 44.1 47.6 41.4 42.7 42.7 43.9 N/A 2 Width/Depth Ratio _ 10.3 - 13.6 14.9 - - 14.5 - 15.0 15.6 - - 12.5 12.3 12.1 12.6 13.8 13.8 14.9 N/A 2 Entrenchment Ratio - 8.3 - 8.6 8.3 - - 2.7 - 2.7 2.7 - 4.4 6.5 8.3 >3.9 >4.2 >4.2 >4.4 N/A 2 Bank Height Ratio - 1.3 - 1.3 1.4 - 1.0 - 1.0 1.1 - 1.0 1.0 1.0 1 1.0 1.0 1 1.0 1.0 N/A 2 Profile Riffle Length (ft) _ _ _ _ _ _ _ _ _ _ - 37.17 58.9 - 98.4 - 8 Riffle Slope (ft/ft) 0.010 - 0.024 0.055 - - 0.019 0.020 0.021 - - 0.007 0.010 0.013 0.002 0.010 - 0.018 - 8 Pool Length (ft) - - - _ _ _ _ _ _ _ _ - - - 25.0 62.6 - 1 88.0 - 13 Pool Max depth (ft) 4.0 4.3 4.7- - 3.4 - 3.5 3.5 - - 4.0 4.0 4.0 2.5 3.2 - 4.1 - 13 Pool Spacing (ft) - - - - - - - - - - - - - - - 73.3 120.9 - 200.1 - 12 Pattern Channel Behwidth (ft) 44.0 - 65.0 117.0 - - 86.0 - 86.0 86.0 - - 48.0 88.0 126.0 63.0 96.5 101.0 121.0 24.9 4 Radius of Curvature (ft) 20.0 - 29.0 52.0 - - 19.6 - 22.7 25.8 - 67.0 73.0 101.0 70.0 76.5 75.0 86.0 6.8 4 Re Bankfull width (ft/ft) 0.9 - 1.1 1.8 - 0.7 - 0.8 0.9 3.0 3.1 4.2 2.9 3.2 3.1 3.6 N/A N/A Meander Wavelength (ft) 133.0 - 297.0 479.0 - 81.0 - 81.0 81.0 - 133.0 311.0 325.0 165.0 263.7 306.0 320.0 85.7 3 Meander Width Ratio Substrate, Bed, and Transport parameters 2.0 - 2.5 3.9 - - 3.2 - 3.2 3.2 - - 2.1 3.8 5.3 2.6 4.0 4.2 5.0 N/A N/A Ri%/Ru%/P%/G%/S%' 7 - - - SC% / Sa% / G% / C% / B% / Be% - - 0%,3.5%,96%,0.5%,0%,0% dl6 / d35 / d50 / d84 / d95 (mm) - - 14, 19, 23, 41, 56 Reach Shear Stress (competency) lb/f ` - P - - Max part size (mm) mobilized at bankfull M- I - - Stream Power (transport capacity) W/m E&M - - - Additional Reach Parameters Rosgen Classification _ C4 C4 C4 C4 Bankfull Velocity (fps) _ _ _ _ _ _ - Bankfull Discharge (cls) _ _ _ _ - Valley length (ft) 2,525 4,730 1,294 Channel Thalweg length (ft) 2,762 327 2,897 1,532 Sinuosity (ft) 1.12 1.26 1.15 1.18 Water Surface Slope (Channel) (ft/ft) _ 0.0064 0.0127 0.0071 0.0063 BF slope (Tfl) _ 0.0071 0.0101 0.0062 0.0067 Bankfull Floodplain Area (acres) _ _ % of Reach with Eroding Banks Channel Stability or Habitat Metric - - - - Biological or Other - - N/A - Not Applicable - Information Unavailable Hogan Creek Stream Mitigation Project/94708 D-17 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data N/A - Not Applicable - Information Unavailable Hogan Creek Stream Mitigation Project/94708 D-18 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Table 8b. Baseline Stream Data Summary Hogan Creek/94708 - Reach 2 1,085feet) Parameter Gauge Regional Curve Pre -Existing Condition Reference Reach Data Design Monitoring Baseline Dimension and Substrate - Riffle Only LL UL Eq. Min Mean Med Max SD n Min Mean Med Max SD n Min Med Max Min Mean Med Max SD n Bankfull Width (ft) - _ _ - 21.5 - 25.7 29.7 - - 27.2 - 30.4 33.6 - 22.5 23.3 24.0 24.2 24.5 24.5 24.7 N/A 2 Floodprone Width (ft) 178.0 - 220.0 246.0 - - 72.1 - 72.3 72.5 - - 100.0 150.0 200.0 >100 >100 >100 >100 N/A 2 Bankfull Mean Depth (ft) _ _ 2.0 - 1.9 2.1 - - 1.9 - 2.0 2.2 - 1.8 1.9 2.2 1.9 2.1 2.1 2.3 N/A 2 Bankfull Max Depth (ft) _ 2.5 - 2.7 3.2 - - 2.4 - 2.5 2.7 - 2.5 1 2.6 2.8 3.2 1 3.4 3.4 3.6 N/A 2 Bankfull Cross Sectional Area (fC) - - 45.1 - 48.6 59.3 - - 50.8 - 61.6 72.4 - 40.6 44.1 47.6 45.2 50.9 50.9 56.6 N/A 2 Width/Depth Ratio _ 10.3 - 13.6 14.9 - - 14.5 - 15.0 15.6 - - 12.5 12.3 12.1 10.8 11.9 11.9 13.0 N/A 2 Entrenchment Ratio _ 8.3 - 8.6 8.3 - - 2.7 - 2.7 2.7 - 4.4 6.5 8.3 >4.0 >4.1 >4.1 >4.1 N/A 2 Bank Height Ratio _ 1.3 - 1.3 1.4 - 1.0 - 1.0 1.1 - 1.0 1.0 1.0 1.0 1.0 1 1.0 1.0 N/A 2 Profile Riffle Length (ft) _ _ _ _ _ _ _ _ _ _ _ 95.63 111.6 - 130.3 - 5 Riffle Slope (fl/ft) 0.010 - 0.024 0.055 - - 0.019 0.020 0.021 - - 0.007 0.010 0.013 0.004 0.005 - 0.007 - 5 Pool Length (ft) - - - _ _ _ _ _ _ _ _ - - - 43.7 68.8 - 1 117.1 - 5 Pool Max depth (ft) 4.0 4.3 4.7 - - 3.4 - 3.5 3.5 - - 4.0 4.0 4.0 3.80 4.73 - 5.8 - 5 Pool Spacing (ft) - - - - - - - - - - - - - - - 164.1 208.4 - 253.1 - 4 Pattern Channel Behwidth (ft) 44.0 - 65.0 117.0 - - 86.0 - 86.0 86.0 - - 48.0 88.0 126.0 84.0 114.0 117.0 141.0 28.6 3 Radius of Curvature (ft) 20.0 - 29.0 52.0 - - 19.6 - 22.7 25.8 - 67.0 73.0 101.0 69.0 73.3 74.0 75.0 2.8 5 Re Bankfull width (ft/ft) 0.9 - 1.1 1.8 - 0.7 - 0.8 0.9 3.0 3.1 4.2 2.8 3.0 3.0 3.1 N/A N/A Meander Wavelength (R)l 1 133.0 - 297.0 479.0 - 81.0 - 81.0 81.0 - 133.0 311.0 325.0 292.0 307.0 301.0 1328.0 18.7 3 Meander Width Ratio Substrate, Bed, and Transport parameters 2.0 - 2.5 3.9 - - 3.2 - 3.2 3.2 - - 2.1 3.8 5.3 3.4 4.7 4.8 5.8 N/A N/A Ri%/Ru%/P%/G%/S%- SC% / Sa% / G% / C% / B% / Be% - - 0%,3%,9%,89%,0%,0% d16 / d35 / d50 / d84 / d95 (mm) - - 13, 24, 22, 35, 49 Reach Shear Stress (competency) Ib/f ` - P - - Max part size (mm) mobilized at bankfull - - Stream Power (transport capacity) W/m - - Additional Reach Parameters Rosgen Classification _ C4 C4 C4 C4 Bankfull Velocity (fps) _ _ _ _ _ _ - Bankfull Discharge (cls) _ _ _ _ - Valley length (ft) 2,525 4,730 794 Channel Thalweg length (ft) 2,762 327 2,897 1,085 Sinuosity (ft) 1.12 1.26 1.15 1.37 Water Surface Slope (Channel) (fl/ft) _ 0.0064 0.0127 0.0071 0.0050 BF slope (fl/fl) _ 0.0071 0.0101 0.0062 0.0053 Bankfull Floodplain Area (acres) _ _ % of Reach with Eroding Banks Channel Stability or Habitat Metric - - - - Biological or Other - - N/A - Not Applicable - Information Unavailable Hogan Creek Stream Mitigation Project/94708 D-18 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data N/A - Not Applicable - Information Unavailable Hogan Creek Stream Mitigation Project/94708 D-19 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Table 8c. Baseline Stream Data Summary Hogan Creek/94708 - iJ I2 675 feet) Parameter Gauge Regional Curve Pre -Existing Condition Reference Reach Data Design Monitoring Baseline Dimension and Substrate - Riffle Only LL UL Eq. Min Mean Med Max SD n Min Mean Med Max SD n Min Med Max Min Mean Med Max SD n Bankfull Width (ft) _ _ _ _ - 8.2 - - - - 7.1 - - 9.0 - 6.5 7.1 7.1 7.6 N/A 2 Floodprone Width (ft) - 66.0 - - - 15.0 - - 30.0 - 21 24.9 24.9 28.8 N/A 2 Bankfull Mean Depth (ft) _ _ _ 1.5 - - 0.9 - - 0.7 - 0.5 0.6 0.6 0.7 N/A 2 Bankfi ll Max Depth (ft) _ - 2.1 - - 1.2 - - - 1.0 - 0.9 1.1 1.1 1.2 1 N/A 2 Bankfull Cross Sectional Area (fC) 12.1 - - - 6.6 - - - 6.5 - 4.0 4.4 4.4 4.7 N/A 2 Width/Depth Ratio _ - 5.6 - - - - 7.6 - - - 12.5 - 8.9 11.6 11.6 14.2 N/A 2 Entrenchment Ratio _ - 8.0 - - 2.1 - - - 3.3 - 3.2 3.5 3.5 3.8 N/A 2 Bank Height Ratio _ - - 1.6 - - 1.0 - 1.0 - 1.0 1.0 1.0 1.0 N/A 2 Profile Riffle Length (ft) _ _ _ _ _ _ _ _ _ _ - 14.3 34.4 - 67.3 11 Riffle Slope (ft/ft) 0.030 - 0.033 0.056 - 0.023 0.033 0.036 - - 0.027 0.032 0.038 0.014 0.028 - 0.052 11 Pool Length (ft) _ _ _ _ _ _ _ _ _ _ - - 4.2 11.0 - 27.1 12 Pool Max depth (ft) - - 2.7 - - - 1.5 - - - - 1.6 - 1.2 2.0 - 3.2 - 12 Pool Spacing (fl) - - - - - - - - - - - - - 13.1 54.8 - 151.0 - 11 Pattern Channel Behwidth (ft) 28.0 - 42.0 56.0 - - 62.0 - 67.5 73.0 - - 17.0 26.0 49.0 26.0 38.0 39.0 54.0 2.7 5 Radius of Curvature (ft) 16.0 - 18.5 21.0 - 7.0 16.0 25.0 - 22.0 27.0 30.0 19.0 21.6 22.0 26.0 2.4 6 Re Bankfull width (ft/ft) 2.0 - 2.3 2.6 - 1.0 2.3 3.5 2.4 3.0 3.3 2.7 3.0 3.1 3.7 N/A N/A Meander Wavelength (ft) 128.0 - 159.0 190.0 - 53.0 58.5 64.0 - 73.0 103.0 130.0 101.0 112.3 109.5 132.0 2.7 6 Meander Width Ratio Substrate, Bed, and Transport parameters 3.4 - 5.1 6.8 - 8.7 9.5 10.3 - - 1.9 2.9 5.5 3.7 5.4 5.5 7.6 N/A N/A Ri%/Ru%/P%/G%/S% - - - SC%/Sa%/G°/u/C%/B%/Be% - N/A d16 / d35 / d50 / d84 / d95 (mm) - N/A Reach Shear Stress (competency) Ib/f - - Max part size (mm) mobilized at bankfull - Stream Power (transport capacity) W/m 6� - - Additional Reach Parameters Rosgen Classification _ E4b E4b B4 B4 Bankfull Velocity (fps) Bankfull Discharge (cls) Valley length (ft) 641 1,350 544 Channel Thalweg length (fl) 568 1,980 555 675 Sinuosity (ft) 1.33 1.47 1.4 1.24 Water Surface Slope (Channel) (fl/fl) 0.0235 0.0263 0.0223 0.0218 BF slope (ft/fl) _ 0.0312 0.0356 0.0312 0.0229 Bankfull Floodplain Area (acres) _ _ _ _ % of Reach with Eroding Banks - - Channel Stability or Habitat Metric - - Biological or Other - - N/A - Not Applicable - Information Unavailable Hogan Creek Stream Mitigation Project/94708 D-19 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data N/A - Not Applicable Hogan Creek Stream Mitigation Project/94708 D-20 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Table 9. Monitoring Data - Dimensional Morphology Summary (Dimensional Parameters - Cross Sections) Hogan Creek /94708 Segment/Reach: Hogan Reach 1 (1,532 feet) Cross Section 1 (Riffle) Cross Section 2 (Pool) Cross Section 3 (Riffle) Based on fixed baseline bankfull elevation Base MYl MY2 MY3 MY4 MY5 Base MYl MY2 MY3 MY4 MY5 Base MYl MY2 MY3 MY4 MY5 Record elevation datum used 990.8 990.8 990.7 990.7 987.6 987.6 Bankfull Width (tt) 25.6 25.4 29.1 30.6 22.8 22.9 Floodprone Width(ft) >100 >100 N/A N/A >100 >100 BankfiM Mean Depth (ft) 1.7 1.6 2.0 2.2 1.8 2.0 Bankfiill Max Depth (ft) 2.9 2.9 4.5 4.9 2.7 3.6 Bankfull Cross Sectional Area(ft) 43.9 41.8 57.6 1 66.7 1 1 41.4 45.9 Bankfull Width/Depth Ratio 14.9 15.4 14.7 14.1 12.6 1 11.4 BankffAEntrenchment Ratio >3.9 >3.9 N/A N/A >4.4 >4.4 BanktiA Bank Height Ratio 1.0 1.0 1.0 1.0 1.0 1.0 d50 (mm) 19 23 N/A N/A 26 29 Hogan Creek /94708 Segment/Reach: Hogan Reach 2 (1,085 feet) Cross Section 4 (Pool) Cross Section 5 (Riffle) Cross Section 6 (Riffle) Based on fixed baseline bankfull elevation Base MYl MY2 MY3 MY4 MY5 Base MYl MY2 MY3 MY4 MY5 Base MYl MY2 MY3 MY4 MY5 Record elevation (datum) used 984.0 984.0 983.6 983.6 982.1 982.1 Bankfull Width (ft) 44.6 45.5 24.2 24.8 24.7 28.1 Flood roneWidth(ff) N/A N/A >100 >100 >100 >100 Bankfull Mean Depth(ft) 2.2 2.1 1.9 2.0 2.3 2.0 BankFA Max Depth (fl) 4.2 4.3 1 3.2 3.6 1 1 3.6 3.8 Bankfull Cross Sectional Area (ft') 98.9 95.4 45.2 49.2 56.6 56.5 Bankfull Width/Depth Ratio 20.1 21.7 13.0 12.5 10.8 1 14.0 BankfiA Entrenchment Ratio N/A N/A >4.1 >4.0 BankfuU Bank Hei t Ratio 1.0 1.0 1.0 1.0 d50 (nm) N/A N/A 27 32 31 30 Hogan Creek /94708 Segment/Reach: IM (675 feet) Cross Section 7 (Riffle) Cross Section 8 (Pool) Cross Section 9 (Riffle) Based on fixed baseline bankfull elevation Base MYl MY2 MY3 MY4 MY5 Base MYl MY2 MY3 MY4 MY5 Base MYl MY2 MY3 MY4 MY5 Record elevation (datum) used 989.4 989.4 988.2 988.2 986.4 986.4 Bankroll Width (ft) 7.6 6.9 6.9 7.1 6.5 6.8 Floodprone Width (fl) 28.8 29.0 N/A N/A 21.0 20.6 Bankfull Mean Depth (ft) 0.5 0.5 0.6 0.7 0.7 0.7 Bankfull Max Depth (ft) 0.9 1.0 1.0 1.3 1 1.2 1.1 BankfiillCross Sectional Area ft) 1 4.0 1 3.5 1 1 1 1 4.4 1 5.1 1 1 4.7 4.6 Bankfiill Width/Depth Ratio 14.2 13.6 10.7 9.8 8.9 10.3 BankfuR Entrenchment Ratio 3.8 4.2 N/A N/A 3.2 3.0 Bankfull Bank Height Ratio 1.0 1.0 1.0 1.0 1.0 1.0 d50 (rmn) N/A N/A N/A N/A N/A N/A N/A - Not Applicable Hogan Creek Stream Mitigation Project/94708 D-20 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data N/A - Not Applicable - Infoxrration Unavailable Hogan Creek Stream Mitigation Project/94708 D-21 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Table 10a. Monitoring Data - Stream Reach Data Summary Hogan Creek/94708 - Hogan Creek/Reach 1 (1,532 feet) Parameter Baseline MY -1 MY -2 MY- 3 MY- 4 MY 5 Dimension and Substrate - Riffle only Min Mean Med Max SD n Min Mean Med Max SD n Min Mean Med Max SO n Min Mean Med Max SO n Min Mean Med Max SO n Min Mean Med Max SD4 n Bankfull Width (ft) 22.8 24.2 24.2 25.6 N/A 2 22.9 24.2 24.2 25.4 N/A 2 Floodprone Width(ft) >100 >100 >100 >100 N/A 2 >100 >100 >100 >100 N/A 2 Bankfull Mean Depth (ft) 1.7 1.8 1.8 1.8 N/A 2 1.6 1.8 1.8 2.0 N/A 2 BankfA Max Depth (ft) 2.7 2.8 2.8 2.9 N/A 2 2.9 3.3 3.3 3.6 N/A 2 Bankfull Cross Sectional Areae 41.4 42.7 42.7 43.9 N/A 2 41.8 43.9 43.9 45.9 N/A 2 Width/DepthRatio 12.6 13.8 13.8 14.9 N/A 2 11.4 13.4 13.4 15.4 N/A 2 Entrenchment Ratio >3.9 >4.2 >4.2 >4.4 N/A 2 >3.9 >4.2 >4.2 >4.4 N/A 2 Bank Height Ratio 1.0 1.0 1.0 1.0 N/A 2 1.0 1.0 1 1.0 1.0 N/A 2 Profile Rifle Length (ft) 37.2 58.9 - 98.4 8 15.0 62.1 73.5 98.0 8 Riffle Slope (ft/ft) 0.002 0.010 - 0.018 - 8 0.006 0.013 0.011 0.020 - 8 Pool Length (ft) 25.0 62.6 - 88.0 1 - 13 20.0 67.1 76.0 105.0 13 Pool Max depth (ft) 2.5 3.2 - 4.1 - 13 2.8 3.7 3.4 4.8 13 Pool Spacing (ft) 73.3 120.9 - 200.1 - 12 52.0 112.8 111.0 148.0 - 12 Pattern Charnel Bchwidth (ft) 63.0 96.5 101.0 121.0 24.9 4 Radius of Curvature (ft) 70.0 76.5 75.0 1 86.0 6.8 1 4 Rc Bankfull width OHL) 2.9 3.2 3.1 3.6 N/A N/A Meander Wavelength (ft)l 165.0 263.7 306.0 320.0 85.7 3 Meander Width Ratio 2.6 Additional Reach Parameters --AL- 4.0 4.2 5.0 N/A N/A 77 Rosgen Classification C4 C4 Channel Thalweg length (ft) 1,532 1,530 Sinuosity (ft) 1.18 1.18 Water Surface Slope (Channel) (fl/ft) 0.0063 0.0064 BF slope (fl/ft) 0.0067 0.0069 Ri%/Ru%/P%/G%/S% - - - - - - - - - - - - SC% / Sa% / G% / C% / B% / Be% 0% 3.5% 96% 0.5% 0% 0% 0% 0.5% 98% 1.5% 0% 0% d16 / d35 / d50 / d84 / d95 / 14 19 23 41 56 13 21 27 44 62 % of Reach with Eroding Banks 0% 7% Channel Stability or Habitat Metric Biological or Other N/A - Not Applicable - Infoxrration Unavailable Hogan Creek Stream Mitigation Project/94708 D-21 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data N/A - Not Applicable - Information Unavailable Hogan Creek Stream Mitigation Project/94708 D-22 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Table 10b. Monitoring Data - Stream Reach Data Summary Hogan Creek/94708 - Hogan Creek/Reach 2 (1,085 feet) Parameter Baseline MY -1 MY -2 MY- 3 MY 4 MY 5 Dimension and Substrate -Riffle only Min Mean Med Max SD n Min Mean Med Max SD n Min Mean Med Max SD n Min Mean Med Max SD n Min Mean Med Max SD n Min Mean Med Max SD n Bankfull Width (ft) 24.2 24.5 24.5 24.7 N/A 2 24.8 26.5 26.5 28.1 N/A 2 Floodprone Width (ft) >100 >100 >100 >100 N/A 2 >100 >100 >100 >100 N/A 2 Bankfull Mean Depth (ft) 1.9 2.1 2.1 2.3 N/A 2 2.0 2.0 2.0 2.0 N/A 2 Bankfull Max Depth (ft) 3.2 3.4 3.4 3.6 N/A 2 3.6 3.7 3.7 3.8 N/A 2 BankfA Cross Sectional Areae 45.2 50.9 50.9 56.6 N/A 2 49.2 52.9 52.9 56.5 N/A 2 Width/Depth Ratio 10.8 11.9 11.9 13.0 N/A 2 12.5 13.3 13.3 14.0 N/A 2 Entrenchment Ratio >4.0 >4.1 >4.1 >4.1 N/A 2 >3.6 >3.8 >3.8 >4.0 N/A 2 Bank Height Ratio 1.0 1.0 1.0 1.0 N/A 2 1.0 1.0 1.0 1.0 N/A 2 Profile Riffle Length (ft) 95.6 111.6 - 130.3 - 5 56.0 91.0 101.0 125.0 - 5 Riffle Slope (ft/ft) 0.004 0.005 - 0.007 - 5 0.004 0.009 0.007 0.018 - 5 Pool Length (ft) 43.7 68.8 - 117.1 - 5 60.0 87.3 64.0 135.0 - 5 Pool Max depth (ft) 3.8 4.7 - 5.8 - 5 4.0 4.8 4.6 5.7 - 5 Pool Spacing (ft) 164.1 1208.4 - 253.1 - 4 169.0 196.5 189.5 238.0 - 4 Pattern Channel Beltwidth (ft) 84.0 114.0 117.0 141.0 28.6 3 Radius of Curvature (ft) 69.0 73.3 74.0 75.0 2.8 5 Rc:Bankfull width (ft/fl) 2.8 3.0 3.0 3.1 N/A N/A Meander Wavelength (ft) 292.0 307.0 301.0 328.0 18.7 3 Meander Width Ratio 3.4 Additional Reach Parameters 4.7 4.8 5.8 llw! N/A N/A Rosgen Classification C4 C4 Channel Thalweg length (ft) 1,085 1,085 Sinuosity (ft) 1.37 1.37 Water Surface Slope (Channel) (ft/ft) 0.0050 0.0045 BF slope (ft/ft) 0.0053 0.0053 Ri%/Ru%/P%/G%/S% - I - - - - - - - - - - - SC% / Sa% / G% / C% / B% / Be%0% 3% 9% 89% 0% 0% 0% 0% 99% 1 % 0% 0% d16 / d35 / d50 / d84 / d95 / 13 24 22 1 35 49 18 25 31 52 70 % of Reach with Eroding Banks 0% 2% Channel Stability or Habitat Metric Biological or Other N/A - Not Applicable - Information Unavailable Hogan Creek Stream Mitigation Project/94708 D-22 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix D Stream Survey Data N/A - Not Applicable - Infoxrration Unavailable Hogan Creek Stream Mitigation Project/94708 D-23 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 TableI 1 _ Data - Stream Reach Data Summary 1. 0: (675 feet) Hogan Parameter DimensionandSubstrate-Rfffle only Floodprone Width Bankfull Mean Depth BankfiA Max Depth Bankfull Cross Sectional Area Width/DepthRaimmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm - • ®®®M®©MMM®®©-_-----_-----_-----_---- Bank Height R.M. Riffle.. Slope PoolMax depthPool Spacing RadiusofCurva mmmmmm 1 ®M®®MMMMMMMM MMMMMmmmmmmmmmmmmmmMeander ���� Wavelength Meander WidthAmmmmmmmmmmmommmmmmmmmmmmmmmmmmmmmmmm arameters Additional Reach PIi ----..--------.-----�.- Thalweg length (M WaterChannel Y. Slope (Channel) : : MIBF -_-----_-----_-----_---- slope (Ndl ' ' . , :.: ... 1 . .:. •=aaas==aass=======MMMMMMMMMMMMMMMMMM of Reach with Eroding BanZ Channel% .. 1 or Habitat -Biological -_-----_-----_-----_-�- or Oth: N/A - Not Applicable - Infoxrration Unavailable Hogan Creek Stream Mitigation Project/94708 D-23 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Appendix E Hydrologic Data Appendix E Hydrologic Data *Crest Gauge was damaged from bankfull event Photograph of wrack lines on Hogan Creek Reach 1 Station 26+00 Photograph of wrack lines on Hogan Creek Reach 1 Station 25+00 Hogan Creek Stream Mitigation Project/94708 E-1 Monitoring Year 1 of 5 Annual Monitoring Report January 2016 Table 11. Verification of Bankfull Events Hogan Creek Stream Mitigation/ 94708 Date of Data Reach Date of Occurrence Method Measurement (ft) Photo (If Available) Collection Hogan Creek Reach 2 10/26/2015 10/2/2015-10/3/2015 Crest Gauge *4.0 UT2 10/26/2015 10/2/2015-10/3/2015 Crest Gauge 0.9 *Crest Gauge was damaged from bankfull event Photograph of wrack lines on Hogan Creek Reach 1 Station 26+00 Photograph of wrack lines on Hogan Creek Reach 1 Station 25+00 Hogan Creek Stream Mitigation Project/94708 E-1 Monitoring Year 1 of 5 Annual Monitoring Report January 2016