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HomeMy WebLinkAbout20120182 Ver 1_Year 4 Monitoring Report_2018_20181205MONITORING YEAR 4 ANNUAL REPORT Final HOGAN CREEK STREAM MITIGATION PROJECT Surry County, NC DEQ Contract 6496 DMS Project Number 94708 DWR # 20120182 USACE Action ID SAW -2011-02268 Data Collection Period: April -October 2018 Submission Date: December 5, 2018 PREPARED FOR: INC Department of Environmental Quality Division of Mitigation Services 1652 Mail Service Center Raleigh, NC 27699-1652 Mitigation Project Name Hogan Creek DMS ID 94708 River Basin Yadkin Cataloging Unit 03040101 County Surry USACE Action lD 20114=68 Data Project Instituted 10/18/2010 NCDWR Permit No 20124182 Dale Prepared 8/1612018 Credit Release Milestone Potential Credits Mid atlen Pian Potential Create AaBullt Survey)(Stream).060 Potential Credits ORT Approved) seeeei SCheduletlAnticipated Releases000 Stream crctlltS. l Cold .9261 Release Year (.Mo.) Actual Release Dole (Stream) Scheduled Releases iFarestedi wetland Credits Wpaden Riparian Her Namdpa0an Rikudre dvedne Scheduled Releases (Coastal) Coastal Anticipated Release Year (Wetlantl) Actual Release0ata (Wetland) Ste Eamlishment NIANIA Peroenhge Released WA NIA NIA NIA WA 2 ear 0l Ae-Bullq 30%.]00 780.000 2015 9298015 30% 30%] 1,620450 780.000 Year1 Monitorin 10%900 No 2016 4252018 10% 10%IRTAtlustri 00 1020201] NIA WA 6 ear 2 Montofln 10%92 2017 11120201] 1S/. 15hWA WA ar3 Monitodn -NOT RELEASED 10%392 2010 Not ..eased 20% 20% NIA WA 6 ear4 Menitdn 10%2019 10% 106 WA NIA 7(Year5Monitorin 1S/•2020 780.000 2]OA00 3,681.450 15% 1S% WA NIA tandard 1SA089 201710202017 WA Total Credits Released to Date .061 'NOTE: Adjustment required due to IRT concems on howthe as -built credBs were [21CUlated DEBITS heleased credits only) Ratios 1 1 250114 5 1 3 2 5 1 3 2 5 1 3 2 5 In Adjusted As4vilt Amounts (rest and acres) 2,493.000 1,200.000 416.000 5,673.000 _ cvWAS To 2K 2U 2W y oK wV IRT Adjus[ed ASBuitt Amounts (m¢igatien [redits) 2,493.000 1,200.000 166.324 1.134.600 Peroenhge Released 65% 65% 65% 66% 7 Released Amounts (fee (acres) 1,620.450 780.000 270.400 3,687.450 Released Area nb(credits) 1,620450 780.000 108.111 737.490 NCDWRPmmt USACEAotIon ID Project Name Remaining Amoumsdeetlacres) .620.450 780.000 2]OA00 3,681.450 Remaining Amouclahnsdes) 1,620.450 780.000 108.111 737,490 Signature ofW mington District Official Approving Credit Release Date 1 1- For NCDMS, no credits are rete eddurng the first milestone 2 - For NCDMS projects, the second credit release milestone occurs automatically when the as -bulli report (baseline monitoring report) has been made available to the NCIRT by posting it to the NCEEP (NCDMS) Portal, provided the following criteria have been met: 1) Approval ofthe final Mitigation Plan 2) Recordation of the preservation mechanism, as well as a title opinion acceptable to the USACE covering the property 3) Completion of all physical and biological Improvements to the mitigation site pursuant to the mitigation plan 4) Reciept of necessary CA permit authorization or written DA approval for porjects where DA permit issuance is not required 3.-A 10% reserve of credits is to be held back until the bankfull event performance standard has been mel PREPARED BY: WILDLANDS E N G I N E E R I N G 1430 South Mint Street, Suite 104 Charlotte, NC 28203 Phone: 704.332.7754 Fax: 704.332.3306 WILDLANDS ENGINEERING December 5, 2018 Mr. Matthew Reid Western Project Manager Division of Mitigation Services 5 Ravenscroft Dr., Suite 102 Asheville, NC 28801 RE: Hogan Creek Stream Mitigation Project Yadkin River Basin — CU# 03040101 Surry County, North Carolina NCEEP Project # 94708 Contract No. 6496 Dear Mr. Reid: Wildlands Engineering, Inc. (Wildlands) has reviewed the Division of Mitigation Services (DMS) comments from the Draft Monitoring Year 4 report for the Hogan Creek Stream Mitigation Project. The following Wildlands responses to DMS's report comments are noted in italics lettering. DMS comment; Please update last sentence in Executive Summary. The adaptive management measures scheduled to repair Hogan Creek Reach 1 and Reach 2 will occur in January 2019. Wildlands response; Text in the Executive Summary has been updated to indicate that site repairs are scheduled to occur in January 2019. DMS comment; 1.2.2 Vegetation Areas of Concern: DMS has contracted with a provider for invasive species treatment beginning in Spring 2018. Treatments occurred in June 2018 and again in August 2018. Additional treatments will continue until closeout. Wildlands response; Text in Section 1.2.2 has been added to indicate that invasive species treatment occurred in June and August 2018 and that additional treatments will continue until closeout. DMS comment; 1.2.4 Stream Areas of Concern: The repair construction to Hogan Creek Reach 1 and Reach 2 will begin in January 2019. Wildlands response; Text in Section 1.2.4 has been updated to indicate that site repairs are scheduled to occur in January 2019. DMS comment; 1.3 Monitoring Year 3 Summary: Please update section to indicate that adaptive management measures will occur in January 2019 and invasive plant control will continue in 2019. Wildlands response; Text in Section 1.3 has been updated to indicate that adaptive management measures will occur in January 2019 and invasive plant control will continue in 2019. Wildlands Engineering, Inc. • phone 704-332-7754 • fax 704-332-3306 • 1430 S. Mint Street, # 104 • Charlotte, NC 28203 WILDLANDS ENGINEERING DMS comment; Table 2: Please update Invasive Species Treatment dates to Jun/Aug — 2018 Wildlands response; In Table 2, Invasive Species Treatment dates have been updated to Jun/Aug -2018. DMS comment; Please include the attached invasive species treatment log in the appendix. Wildlands response; Invasive species treatment logs have been included in Appendix A. DMS comment; XS and Profiles: For ease of reading and comparing data, please turn off markers for all data except the current monitoring year. Wildlands response, For XS and Profiles, all markers for data except the current monitoring year have been turned off. Enclosed please find three (3) hard copies and one (1) electronic copy on CD of the Final Monitoring Report. Please contact me at 704-332-7754 x110 if you have any questions. Sincerely, Kirsten Y. Gimbert Project Manager kgimbert@w ildlandseng.com Wildlands Engineering, Inc. • phone 704-332-7754 • fax 704-332-3306 • 1430 S. Mint Street, # 104 • Charlotte, NC 28203 EXECUTIVE SUMMARY The North Carolina Department of Environmental Quality (NCDEQ) Division of Mitigation Services (DMS) restored, enhanced, and preserved approximately 9,782 linear feet (LF) of stream channel at the Hogan Creek Stream Mitigation Site (Site) in Surry County, North Carolina. The restoration project was developed to fulfill stream mitigation requirements accepted by the DMS for the Upper Yadkin River Basin 8 -digit Hydrologic Unit Code (HUC) 03040101. The Hogan Creek Stream Mitigation Project will net 4,994 stream mitigation credits through a combination of restoration, enhancement I and II, and preservation. The Site is within a Targeted Local Watershed (TLW) identified in the Upper Yadkin River Basin Restoration Priority (RBRP) plan (NCDENR, 2009). The RBRP identified the Candiff Creek/Hogan Creek 14 -digit HUC as a TLW due to water quality and habitat impacts from past and present agricultural practices. Agriculture is the primary land use in the watershed (41% agriculture land cover) and the RBRP identified non -forested buffers and livestock operations as major stressors to water quality. There are 26 permitted animal operations and 25% of the watershed has non -forested riparian buffers. 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 project was identified as an opportunity to improve water quality and aquatic and terrestrial habitats within the TLW. In addition to being within an TLW, the upper Hogan Creek subwatershed has been identified as a priority area for stream restoration and agricultural BMPs as part of DMS's initial Ararat River Local Watershed Planning (LWP) effort (EcoEngineering, 2008). 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 of 2015. The region experienced an unusually high amount of precipitation during fall/winter 2015. The storm event damaged several areas on Hogan Creek Reach 1 and Reach 2 that were repaired in December of 2015. The Monitoring Year (MY) 4 activities were completed in October of 2018. The Hogan Creek Stream Mitigation Project is on track to meet monitoring success criteria for vegetation, geomorphology, and hydrology performance standards. The MY4 vegetation survey resulted in an average stem density of 452 planted stems per acre. The Site is meeting the final requirement of 260 stems per acre, with all plots (100%) individually meeting this requirement. The MY4 vegetation monitoring and visual assessment revealed significant reductions in invasive plant population along the left riparian area of UT2 and UT213 in response to treatment that took place Summer of 2018. Areas of invasive species persist along the riparian areas along Hogan Creek especially at the roadside of Miller Gap Road. Areas of stream bank erosion with no stabilizing woody vegetation appear to be trending toward less stable conditions in Hogan Creek Reach 1 and 2. The performance standard of two recorded bankfull events in separate monitoring years has been met for Hogan Creek and UT2. The adaptive management measures scheduled to repair Hogan Creek Reach 1 and Reach 2 will occur in January 2019. Hogan Creek Stream Mitigation Project Monitoring Year 4 Annual Report - FINAL HOGAN CREEK STREAM MITIGATION PROJECT Year 4 Monitoring Report TABLE OF CONTENTS Section 1: PROJECT OVERVIEW.....................................................................................................1-1 1.1 Project Goals and Objectives.....................................................................................................1-1 1.2 Monitoring Year 4 Data Assessment..........................................................................................1-2 1.2.1 Vegetation Assessment......................................................................................................1-2 1.2.2 Vegetation Areas of Concern and Management Activity..................................................1-2 1.2.3 Stream Assessment............................................................................................................1-3 1.2.4 Stream Areas of Concern and Management Activity.........................................................1-3 1.2.5 Hydrology Assessment.......................................................................................................1-4 1.3 Monitoring Year 4 Summary......................................................................................................1-4 Section 2: METHODOLOGY............................................................................................................2-1 Section 3: REFERENCES.................................................................................................................3-1 APPENDICES Appendix A General Tables and Figures Figure 1 Project Vicinity Map Figure 2 Project Component/Asset Map Table 1 Project Components and Mitigation Credits Table 2 Project Activity and Reporting History Table 3 Project Contact Table Table 4 Project Information and Attributes Table 5 Monitoring Component Summary Invasive Treatment Logs Appendix B Visual Assessment Data Figure 3 Integrated Current Condition Plan View Table 6a -d Visual Stream Morphology Stability Assessment Table Table 7 Vegetation Condition Assessment Table Stream Photographs Vegetation Photographs Appendix C Vegetation Plot Data Table 8 Vegetation Plot Criteria Attainment Table 9 CVS Vegetation Plot Metadata Table 10 Planted and Total Stem Counts (Species by Plot with Annual Means) Appendix D Morphological Summary Data and Plots Table 11a -c Baseline Stream Data Summary Table 12 Morphology and Hydraulic Summary (Dimensional Parameters — Cross -Section) Table 13a -c Monitoring Data - Stream Reach Data Summary Cross -Section Plots with Annual Overlays Longitudinal Profiles with Annual Overlays Pebble Count Plots with Annual Overlays Appendix E Hydrology Summary Data and Plots Table 14 Verification of Bankfull Events Monthly Rainfall Data Hogan Creek Stream Mitigation Project Monitoring Year 4 Annual Report - FINAL ii Section 1: PROJECT OVERVIEW The Site was implemented under a design -bid -build contract with DMS in Surry County, NC. The Site is located in the Yadkin River Basin; eight -digit Cataloging Unit (CU) 03040101 and the 14 -digit HUC 03040101110060 (Figure 1). Located in the Piedmont physiographic province (NCGS 2004), the project watershed primarily includes agricultural land cover. The drainage area for the lower end of Hogan Creek is 1,514 acres. 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. A vicinity map is included in Appendix A as Figure 1. The NCDEQ DMS restored, enhanced, and preserved approximately 9,782 LF of Hogan Creek and three previously unnamed tributaries (UTs), provide livestock fencing and alternative water sources to keep livestock out of the streams, remove invasive plant species across the project, establish native riparian buffer, and preserve relatively un -impacted forested streams. The restoration project was developed to fulfill stream mitigation requirements accepted by the DMS for the Upper Yadkin River Basin (HUC 03040101). Mitigation work within the Site included restoring and enhancing 4,109 LF and preserving 5,673 LF of stream. The Hogan Creek Mitigation Project will net 4,994 stream mitigation credits through a combination of restoration, enhancement I and 11, and preservation. 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 of 2015. The region experienced an unusually high amount of precipitation during fall/winter 2015. The storm event damaged several areas on Hogan Creek Reach 1 and Reach 2 that were repaired in December of 2015. The monitoring year 4 activities were completed in October of 2018. More detailed information related to the project activity, history, and contacts can be found in Appendix A, Tables 1 and 2. Directions and a map of the Site are provided in Figure 1 and project components are illustrated for the Site in Figure 2. Please refer to the Project Component Map (Figure 2) for the stream features and to Table 1 for the project component and mitigation credit information for the Site. This report documents the results of the MY4 efforts. 1.1 Project Goals and Objectives Prior to construction activities, 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 UTs also contributed to channel degradation. Table 11 in Appendix D present the pre -restoration conditions in detail. This mitigation site is intended to provide numerous ecological benefits within the Yadkin River Basin. 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; Hogan Creek Stream Mitigation Project 400 Monitoring Year 4 Annual Report -FINAL 1-1 • 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. The project objectives have been defined as follows: • Restoration of the dimension, pattern, profile of 684 LF of Hogan Creek Reach 1, 962 LF of Hogan Creek Reach 2, 555 LF of UT2, and 292 LF of UT3; • Restoration of the dimension and profile (Enhancement 1) of 1,200 LF of Hogan Creek Reach 1. • Limited channel work coupled with livestock exclusion and/or invasive species control (Enhancement 11) on 66 LF of UT1 and 350 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 5,673 LF relatively un -impacted forested streams in a permanent conservation easement. 1.2 Monitoring Year 4 Data Assessment Annual monitoring was conducted from April to October of 2018 to assess the condition of the project. The stream restoration success criteria for the Site follows the approved performance standards presented in the Hogan Creek Stream Mitigation Project Final Mitigation Plan (Confluence, 2012). 1.2.1 Vegetation Assessment A total of 6 vegetation monitoring plots were established during the baseline monitoring within the project easement areas using a standard 10 by 10 meter plot. Please refer to Figure 3 in Appendix B for the vegetation monitoring locations. The final vegetation success criterion is the survival of 260 planted stems per acre in the riparian corridor along restored and enhanced reached at the end of year five of the monitoring period. The MY4 vegetation survey was completed in August 2018. The data indicate an average stem density of 452 planted stems per acre which increased from MY3 because two stems were found that were missing in previous monitoring years. The Site is meeting the final requirement of 260 stems per acre, with all plots (100%) individually meeting this requirement. The planted stem mortality was approximately 1% of the MY3 stem count which was 438 stems per acre. There is an average of about 11 planted stems per plot. In vegetation plots 1, 2 and 4, a high density of volunteers, predominantly river birch (Betula nigra), tulip poplar (Liriodendron tulipifera), and sycamore (Platanus occidentalis) were observed. A majority of the planted stems (88.2%) scored a vigor of 3 or 4, indicating that they are likely to survive. Approximately 5.9% of the planted stems scored a vigor of 2, indicating fair plant health but with some damage present. Stems that scored a vigor of 1 are not likely to survive account for approximately 4.4% of planted stems. This lower vigor rating is due to damage from vine strangulation, suffocation from dense herbaceous cover, or other unknown factors. Please refer to Appendix B for vegetation plot photographs and Appendix C for vegetation data tables. 1.2.2 Vegetation Areas of Concern and Management Activity Observations indicate that invasive plant populations continue to present areas of concern in MY4 with species including: kudzu (Pueraria montana), Chinese privet (Ligustrum sinense), Japanese honeysuckle (Lonicera japonica), multiflora rose (Rosa multiflora), and Lespedeza (Sericea Lespedeza). Invasive species treatment occurred in the summer of 2018 and significantly reduced areas of kudzu along the left floodplain of UT2 and UT213 preservation reaches. Additionally, the kudzu that was present along the right floodplain of lower Hogan Creek Reach 1 has been decreased. However other areas of invasive Hogan Creek Stream Mitigation Project Monitoring Year 4 Annual Report -FINAL 1-2 species continue to persist throughout the site. Areas of encroaching kudzu are spreading into the easement along both sides of Miller Gap Road. Other invasive plant populations include smaller areas of Chinese privet and multiflora rose at the upper portion of Hogan Creek Reach 1 and past the wood line along the downstream portion of Hogan Creek Reach 2. Approximately 5% of the easement acreage continues to be affected by invasive species. DMS has contracted with a provider for invasive species treatment beginning in Spring 2018. Treatments occurred in June 2018 and again in August 2018. Additional treatments will continue until closeout. These vegetation areas of concern are shown in Figure 3 of Appendix B. 1.2.3 Stream Assessment Morphological surveys for MY4 were conducted in June and July 2018. The MY4 riffle pebble counts in Hogan Creek for cross-sections 1, 5, and 6 indicate similar or coarser sediment size distribution as compared to MYO. For the riffle pebble count at cross-section 3, the sediment size distribution has remained consistent with MY2-MY3 which shows a fining of riffle bed materials. This increase in fine sediment size percentage is indicative of the downcutting present around this cross-section that has caused movement of coarse sediment during large bankfull events. Refer to Appendix D for pebble count plots with annual overlays. Cross-section data indicate modest changes between MY3 and MY4. Hogan Creek riffle cross-section 3 displayed a trend between MYO and MY2 with a reduction in width -depth ratio and an increase in bankfull maximum depth. Between MY3 and MY4, cross-section 3 dimensions exhibited only modest changes indicating that the downcutting displayed in previous years has stabilized. Hogan Creek riffle cross-section 5 data shows an increase in bank height ratio due to the right bank erosion that has migrated downstream. Hogan Creek pool cross-sections indicate maintenance of pool maximum depths and stable function. Hogan Creek pool cross-section 4 data displays a reduction in cross-sectional area between MYO and MY4 due to the expansion of the point bar inside the meander bend. Cross-section data from UT2 indicate some change in bankfull dimensions compared to the baseline. UT2 cross- section data indicate moderate increase in width -depth ratio at the two riffles and a modest decrease in cross-sectional area at the pool cross-section. Visual observations of UT2 indicate overall stability with some sediment deposition observed downstream of the bridge. Similarly, UT1 and UT3 appear stable and functioning as intended. Please refer to Appendix D for cross-section plots with annual overlays and Table 12 for morphology and hydraulic summary. The surveyed longitudinal profile data for the project streams illustrates that bedform features are maintaining lateral and vertical stability for the majority of the surveyed reaches between MY3 and MY4. Consistent with the trend displayed in previous monitoring years, max pool depths increased in all reaches compared to baseline, particularly in Hogan Creek. Around station 17+00 on Hogan Creek Reach 1 downstream of the confluence with UT1, the pool has maintained depth due to scour from a log structure and is enhancing aquatic habitat. On Hogan Creek Reach 2 at station 31+50 downstream of the confluence with UT3, scour along the outer bend of the channel has maintained pool depth as well. The profiles of Hogan Creek and UT2 show modest change in pool spacing and riffle slope. Please refer to Appendix D for longitudinal profiles with annual overlays and Table 13a -c for stream reach data summaries. 1.2.4 Stream Areas of Concern and Management Activity Stream areas of concern included instances of bank erosion and sediment deposition on portions of Hogan Creek and UT2. Nine areas of bank erosion were observed in Hogan Creek Reach 1 and five were observed in Hogan Creek Reach 2. Twelve of these areas of bank erosion were noted in MY3 with two new areas noted in MY4. In Hogan Creek Reach 1, approximately 7% of both banks are unstable due to kHogan Creek Stream Mitigation Project Monitoring Year 4 Annual Report -FINAL 1-3 erosion with no stabilizing woody vegetation. Downstream, similarly about 10% of both banks are unstable due to erosion on Hogan Creek Reach 2. Areas with no woody vegetation nearby appear to be trending toward less stable conditions. DMS has contracted with a provider to perform site evaluation, design and construction oversight for a repair on Hogan Creek. The repair construction to Hogan Creek Reach 1 and Reach 2 will begin in January 2019. These stream areas of concern are indicated on the current condition plan view Figure 3 and Table 6 in Appendix B. 1.2.5 Hydrology Assessment Bankfull events were documented for Hogan Creek and UT2 on April 19, 2018 based on the visual observation of wrack lines and crest gage measurements. Monthly rainfall data indicate higher than the 70th percentile rainfall amounts occurred during the months of April through May and July through August of 2018. Two bankfull flow events must be documented on restoration reaches within the five- year monitoring period and must occur in separate years. Therefore, the performance standard has been met in MY4 with at least four documented bankfull events for each reach. Refer to Appendix E for hydrologic data and graphs. 1.3 Monitoring Year 4 Summary The Hogan Creek Stream Mitigation Project is on track to meet monitoring success criteria for vegetation, geomorphology, and hydrology performance standards. The MY4 vegetation survey resulted in an average stem density of 452 planted stems per acre. The Site is meeting the final requirement of 260 stems per acre, with all plots (100%) individually meeting this requirement. The MY4 vegetation monitoring and visual assessment revealed significant reductions in invasive plant population along the left riparian area of UT2 and UT2B in response to treatment. Areas of invasive species persist along the riparian areas along Hogan Creek especially at the roadside of Miller Gap Road. Areas of stream bank erosion with no stabilizing woody vegetation appear to be trending toward less stable conditions in Hogan Creek Reach 1 and 2. However, the adaptive management measures to repair Hogan Creek Reach 1 and 2 will occur in January 2019 and invasive plant control will continue in 2019. The performance standard of two recorded bankfull events in separate monitoring years has been met for Hogan Creek and UT2. Summary information and data related to the performance of various project and monitoring elements can be found in the tables and figures in the report appendices. Narrative background and supporting information formerly found in these annual monitoring reports can be found in the Mitigation Plan documents available on DMS's website. All raw data supporting the tables and figures in the appendices are available from DMS upon request. Hogan Creek Stream Mitigation Project 400 Monitoring Year 4 Annual Report -FINAL 1-4 Section 2: METHODOLOGY The stream monitoring methodologies utilized in 2018 are based on standard guidance and procedures documents (Rosgen 1996 and USACE 2003). Geomorphic data were collected following the standards outlined in The Stream Channel Reference Site: An Illustrated Guide to Field Techniques (Harrelson et al., 1994) and in the Stream Restoration: A Natural Channel Design Handbook (Doll et al., 2003). All Integrated Current Condition Mapping was recorded using a Trimble handheld GPS with sub -meter accuracy and processed using Pathfinder and ArcGIS. Planted woody vegetation is being monitored in accordance with the guidelines and procedures developed by the Carolina Vegetation Survey-EEP Level 2 Protocol (Lee et al., 2008). Crest gages were installed in surveyed riffle cross-sections and monitored quarter Hogan Creek Stream Mitigation Project Monitoring Year 4 Annual Report -FINAL 2-1 Section 3: REFERENCES Confluence Engineering, PC. 2012. Hogan Creek Stream Mitigation Plan. NCEEP, Raleigh, NC. Doll, B.A., Grabow, G.L., Hall, K.A., Halley, J., Harman, W.A., Jennings, G.D., and Wise, D.E. 2003. Stream Restoration A Natural Channel Design Handbook. EcoEngineering. 2008. Technical Memorandum Task 2, Upper Yadkin Basin Local Watershed Plan. Harrelson, Cheryl C; Rawlins, C.L.; Potyondy, John P. 1994. Stream Channel Reference Sites: An Illustrated Guide to Field Technique. Gen. Tech. Rep. RM -245. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 61 p. Lee, Michael T., Peet, Robert K., Steven D., Wentworth, Thomas R. 2008. CVS-EEP Protocol for Recording Vegetation Version 4.2. Retrieved from: http://cvs.bio.unc.edu/protocol/cvs-eep-protocol-v4.2-lev1- 2.pdf North Carolina Climate Retrieval and Observations Network of the Southeast Database (NCCRONOS). 2017. State Climate Office of North Carolina. Version 2.7.2. NC -SR -2 -Dobson 2.3 SE. Station ID Dobson 2.3 SE. Accessed November 2017. NCDENR. 2009. Upper Yadkin River Basin Restoration Priorities. Retrieved from https://deq.nc.gov/about/divisions/mitigation-services/dms-planning/watershed-planning- documents/yadkin-river-basin North Carolina Geological Survey (NCGS). 2004. Physiography of North Carolina. Map compiled by the Division of Land Resources. Raleigh. Rosgen, D.L. 1996. Applied River Morphology. Pagosa Springs, CO: Wildland Hydrology Books. United States Army Corps of Engineers (USACE), 2003. Stream Mitigation Guidelines. USACE, NCDENR- DWQ, USEPA, NCWRC. Hogan Creek Stream Mitigation Project Monitoring Year 4 Annual Report -FINAL 3-1 APPENDIX A. General Tables and Figures The subject project site is an environmental restoration site of the North Carolina Department of Environmental Quality (DEQ) Division of Mitigation Services (DMS) and is encompassed by a recorded conservation easement, but is bordered by land under private ownership. Accessing the site may require traversing areas near or along the easement boundary and therefore access by the general public is not permitted. Access by authorized personnel of state and federal agencies or their designees/contractors involved in the development, oversight,and stewardship of the restoration site is permitted within the terms and timeframes of their defined roles. Any intended site visitation or activity by any person outside of these previously sanctioned roles and activites requires prior coordination with DMS. Gay,o ?y C' eek Directions: The Hogan Creek project site is located southeast of Level Cross in Surry County, 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 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 u 36.321609 N and 80.602389 W, respectively. L Figure 1 Project Vicinity Map Hogan Creek Stream Mitigation Project W I L D L A N D 5 , 0 0.5 1 Mile DMS Project No. 94708 Monitoring Year 4-2018 Surry County, NC � 3 Z 0 Project Location Z _ :Hydrologic unit Code (14) �M1 I �Cr�ek 03040101110040 ♦ e ne F�a y � i ` 03040101090040 :.a + = *;ry y + 03040101110050 N * t do 03040101090050 03040101110060 1* The subject project site is an environmental restoration site of the North Carolina Department of Environmental Quality (DEQ) Division of Mitigation Services (DMS) and is encompassed by a recorded conservation easement, but is bordered by land under private ownership. Accessing the site may require traversing areas near or along the easement boundary and therefore access by the general public is not permitted. Access by authorized personnel of state and federal agencies or their designees/contractors involved in the development, oversight,and stewardship of the restoration site is permitted within the terms and timeframes of their defined roles. Any intended site visitation or activity by any person outside of these previously sanctioned roles and activites requires prior coordination with DMS. Gay,o ?y C' eek Directions: The Hogan Creek project site is located southeast of Level Cross in Surry County, 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 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 u 36.321609 N and 80.602389 W, respectively. L Figure 1 Project Vicinity Map Hogan Creek Stream Mitigation Project W I L D L A N D 5 , 0 0.5 1 Mile DMS Project No. 94708 Monitoring Year 4-2018 Surry County, NC lM I. ��.� ■, x 40 4x,'.t i • rm-11 a; rt -. a�4f •e rt; # •e rt;*;rtrt +++#+ f ff+# *• 4ff ### ` rt # ## 0 1 1 1 r ;..;Conservation Easement —Stream Restoration Stream Enhancement Level I Stream Enhancement Level II Stream Preservation Non Project Streams ® Existing Wetland E ■ f. ■ � *♦ifi it # r4 * # * r Y rtrt � ■ rtrt**rtrt #*4r ##fi* ; rtrt L+ i� '?, +ff ■ m.m IL IP Ao Figure 2 Project Component/Asset Map w 0t Hogan Creek Stream Mitigation Project V, [. D LA TN D S I I I 400 Feet DMS Project No. 94708 r. f:iVCk.rN[: Monitoring Year 4 - 2018 Surry County, NC r E ■ f. ■ � *♦ifi it # r4 * # * r Y rtrt � ■ rtrt**rtrt #*4r ##fi* ; rtrt L+ i� '?, +ff ■ m.m IL IP Ao Figure 2 Project Component/Asset Map w 0t Hogan Creek Stream Mitigation Project V, [. D LA TN D S I I I 400 Feet DMS Project No. 94708 r. f:iVCk.rN[: Monitoring Year 4 - 2018 Surry County, NC Table 1. Project Components and Mitigation Credits Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Mitigation Credit Summaries N/A - Not Applicable 1 Project components and mitigation credits reverted back to Mitigation Plan asset totals as requested by IRT. Stream Riparian Wetland Non-RiparianWetland Buffer Nitrogen Nutrient Offset Phosphorous Nutrient Offset Overall Credit 4,994.000 N/A N/A N/A N/A N/A JAL .. 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 1:1 1,200.000 Hogan Reach 1 22+00 - 28+84 797 684 P2 R 1:1 684.000 Crossing was removed from total Hogan Reach 2 29+35 - 38+97 876 962 P2 R 1:1 962.000 UTIJA, 1B Upstream of 10+00 1,485 1,485 Preservation P 5:1 297.000 UT1 10+00 - 10+66 66 66 P3 Ell 2.5:1 26.400 UT2, 2A, 2B,2C Upstream of 6+50 3,225 3,225 Preservation P 5:1 645.000 UT2 6+50-10+00 370 350 P3 Ell 2.5:1 140.000 UT2 10+00 - 15+55 633 555 P2 R 1:1 555.000 Crossing was removed from total UT3 Upstream of 9+40 963 963 Preservation P 5:1 192.600 UT3 9+40-12+32 260 292 Length P2 and Area Summations R 1:1 292.000 Restoration Level Stream ( Linear Feet) Riparian Wetland (acres) Non -riparian Wetland (acres) Buffer (Square feet) Upland (acres) Riverine Non-Riverine Restoration 2,493 Enhancement Enhancement 1 1,200 Enhancement II 416 Creation Preservation 5,673 High Quality - Preservation N/A - Not Applicable 1 Project components and mitigation credits reverted back to Mitigation Plan asset totals as requested by IRT. Table 2. Project Activity and Reporting History Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 N/A - Not Applicable Table 3. Project Contacts Table Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Designer Confluence Engineering, PC lata Collection Complete Completion or Delivery Mitigation Plan Asheville, NC 28801 October -2011 February -2012 Final Design — Construction Plans Carolina Environmental Contracting, Inc. October -2011 November -2012 Construction Mount Airy, NC 27030 N/A December -2014 Temporary S&E Mix Applied Turner Land Surveying, PLLC N/A December -2014 Permanent Seed Mix Applied Raleigh, NC 27629 N/A December -2014 Containerized, bare root and B&B plantings for reach/segments N/A March -2015 Baseline Monitoring Document (Year 0) Vegetation Survey May -2015 August -2015 Jay Keller 919-749-8259 Stream Survey June -2015 Stream Repair/Maintenance N/A December -2015 Year 1 Monitoring Vegetation Survey October -2015 January -2016 Foggy Mountain Nursery 336-384-5323 Stream Survey December -2015 Invasive Species Treatment May -2016 May -2016 Supplemental Planting Stream Monitoring POC N/A January -2016 Invasive Species Treatment September -2016 September -2016 Year 2 Monitoring Vegetation Survey October -2016 November -2016 Stream Survey June -2016 Year 3 Monitoring Vegetation Survey August -2017 December -2017 Stream Survey July -2017 Invasive Species Treatment N/A June/August -2018 Year 4 Monitoring Vegetation Survey August -2018 November -2018 Stream Survey June -2018 Year 5 Monitoring Vegetation Survey 2019 November -2019 Stream Survey 2019 N/A - Not Applicable Table 3. Project Contacts Table Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Designer Confluence Engineering, PC 16 Broad Street Asheville, NC 28801 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. 1430 South Mint Street, Ste 104 Charlotte, NC 28205 704.332.7754 Stream Monitoring POC Kirsten Gimbert 704-332-7754, ext 110 Vegetation Monitoring POC Kirsten Gimbert 704-332-7754, ext 110 Table 4. Project Baseline Information and Attributes Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 N/A Not -applicable Project Information Project Name Hogan Creek Stream Mitigation Project County Surry Project Area (acres) 36 Project Coordinates (latitude and longitude) Physiographic Province Project Watershed Summary 36.321609 N, 80.602389 W Information Piedmont River Basin Yadkin USGS Hydrologic Unit 8 -digit 03040101 USGS Hydrologic Unit 14 -digit 03040101110060 DWR Sub -basin Pee Dee River Subbasin 03-07-02 Project Drainage Area (acres) 1,514 ac (2.37 miz) Project Drainage Area Percentage of Impervious Area 10.40% CGIA Land Use Classification Managed Herbaceous Cover, Broadleaf Deciduous Forest Land 11 Parameters Hogan Creek Reach 1 Hogan Creek Reach 2 Main Stem UTI 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 NCDWQWater 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 1 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 vegetation 0 Wetland Summary 0 0 Information 0 0 Parameters Wetland 1 Wetland 2 Wetland 3 dd Wetland 4 Size of Wetland (acres) 0.09 0.02 0.13 0.10 Wetland Type riparian non-riverme 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 Regulation 0 Regulatory Considerations 0 Applicable? 0 0 Documentation Waters of the United States— Section 404 y 7Resolved?Supporting CE Action ID # SAW -2011-02268 Waters of the United States— Section 401 Y NCDWR # 20120182 Endangered Species Act 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 - N/A Not -applicable Table S. Monitoring Component Summary Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Parameter Monitoring Feature Hogan Creek Reach 1 Quantity Length By Reach (ft) Hogan Creek Reach 2 UTI UT2 Frequency UT3 Dimension Riffle XS Pool XS 2 1 2 1 2 1 Annual Annual Pattern/Profile Longitudinal Profile 1500 1000 675 Annual Substrate 100 Pebble Count 2 2 Annual Hydrology Crest Gage 1 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 Invasive Treatment Logs in N Gi w E N C U W m T n N oc O x 66 v i � 41 J C� 6 a E -1 Lir _ C R �l CL m d a !C o a X a H W S � a 3 U_ fl J C x } 13.a a U QN m Q 0. -� Q F a e=e v fl x x u CL CO i � 41 J C� 6 -1 Lir Z N N ❑❑ t o a a ❑ Ln Oj QL 2D d'O 0 0 N y .y ° 0 H N y Q n a •CL M Ln�' a a CL N K `❑ z ❑ O 6�Nj O a ¢ a j V'F W j H z y N W U a v a L.1 cn V 5 c 4 y 'n a r a 4 0 '� o 0 C81 C.T'% ¢ s'!. cir - d a JTI Z a a u J c O❑ 47 a E m 3 a 0 v o Y W, E w O S.C. v LY '6 of LU to C fR O U i QJ N Q 0 3C W 3 Y CL N {�, Q A i- W c a a a a ci ra sn u F H Y 22 b a a O CT Uj Z a W c z ¢ N W Q z ¢ W m ¢ W ❑ 4j m a W a V as ¢ AiJ c W T. d^ Z W x v i W x w D 7 a VJ m to t t N N N ❑❑ t o a a ❑ Ln Oj QL 2D d'O fi 0 N y .y ° 0 EL N y Q n a •CL M Ln�' a CL N K `❑ p O 6�Nj O a ¢ a j V'F W j y N a v 7C cn V 5 c 4 y 'n a n❑ a 4 0 '� o Q C81 C.T'% ¢ s'!. cir - d a JTI a dm c O❑ 47 m E m 3 a 0 Y W, E O S.C. v LY '6 of LU to C fR O U i QJ N 0 3C W 3 Y CL N {�, Q A i- c a a a a ci ra sn H F H Y 22 b a a O CT N a N ❑❑ t o a a ❑ a QL 2D w fi 0 N eS!, ° a a a a n a Q. a y N a v .N V v y u a n❑ a v '� o Q C81 d dm a N myy m m 3 a 0 aj 7 C Q O 0 3C W 3 Y N {�, Q A i- c Fes. �r a Sa Q- co ci ra a m m d m s� A Y 22 b a a a N ❑❑ t o a a ❑ a 0 w fi a N eS!, ° a a a a n a a y '� a v .N V v y u a n❑ a v '� o Q C81 d 0 7 j 7+ Uj Fes. a v na o' a O CT N W 2 s m C C E v i 7 a :3= m L t t 2 A 3 A C 7 ra O UJ Q m m m m U u SJ Ulu V U W m L} C7 lA d R C CL 'Cf O y x N V H R7 E � d I�u 3 C O V L i+ e6 x d. 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O W Q CO m m m U U U U U U U0 U w I i,m L'J CL APPENDIX B. Visual Assessment Data Conservation Easement Stream Restoration ! '; • \ '.,, Stream Enhancement Level I Stream Enhancement Level II .- Stream Preservation Non Project Streams . Existing Wetland "+!► f Photo Point Y 4 Crest Gage •,', _ Cross -Section Vegetation Monitoring Plots (VP) - MY4 Criteria Met _ y ' -�. Stream Areas of Concern - MY4 +'JI A Scour/Erosion gg Bed A radation �' - 1 � ''• _. Vegetation Areas of Concern - MY4 Invasive Plant Population Bare/Poor Herbaceous Cover a t "'0 •�f�sia+f F,+SY+ Al lip •.? `a.d. •�' �`'' }'ice r 0 w W I L n L A N D S ' 0 250 500 Feet ENC IN EERINC I I I I I Figure 3.0 Integrated Current Condition Plan View Map (Key) Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Surry County, NC _� 11 l r Pt t� �t tP Pt •. r Pt�t 70. PPt 00, � �♦ I,L�n s. ` Ott ��i ♦ �- \ v� a. ....�� . ...' _ .�.` _£1':P_ _�'�.�_._. '.'.� .. �_ ..�._ tee_. _ _'".�_ ♦_\.,.� -� <__ � _�� �� •��`� �-• .L __' �...- `.. ...,_ 111111 Easement ,,,-Conservation — Stream Restoration Stream Enhancement Level I Stream Enhancement Level II - �► Non Project Streams - - - Top of Bank Pt PP t �! Existing Wetland Photo Point Wetland o Cross -Section Ao Vegetation Monitoring Plots (VP) - MY4 •_ - :, i . �� [{Y':i�.•• �`". —fin ,y; t► t PP ♦ i ® Scour/Erosion _•• Wetland �'...... � ♦ .. w. --3�. .. .SPP r' PPt ' t. � PPP` - ••P! - `�4°IG'y' '.. "�6���aaea�s��s�s�t�aisa-■ � a � • _ ,'n, � fhb s - � -.' ...' _ .�.` _£1':P_ _�'�.�_._. '.'.� .. �_ ..�._ tee_. _ _'".�_ ♦_\.,.� -� <__ � _�� �� •��`� �-• .L __' �...- `.. ...,_ 111111 Easement ,,,-Conservation — Stream Restoration Stream Enhancement Level I Stream Enhancement Level II Stream Preservation Non Project Streams - - - Top of Bank Structures Existing Wetland Photo Point Crest Gage Cross -Section _. Vegetation Monitoring Plots (VP) - MY4 0 Criteria Met Stream Areas of Concern -MY4 ® Scour/Erosion _ .: ., J- ...' _ .�.` _£1':P_ _�'�.�_._. '.'.� .. �_ ..�._ tee_. _ _'".�_ ♦_\.,.� -� <__ � _�� �� •��`� �-• .L __' �...- `.. ...,_ Vegetation Areas of Concern - MY4 \' Invasive Plant Population Figure 3.1 Integrated Current Condition Plan View Map (Sheet 1 of 3) Hogan Creek Stream Mitigation Project DMS Project No. 94708 W I L n L A N D S' 0 125 250 Feet Monitoring Year 4- 2018 ENC IN EERINC I I I I t Surry County, NC 111111 Easement ,,,-Conservation — Stream Restoration Stream Enhancement Level I Stream Enhancement Level II Stream Preservation Non Project Streams - - - Top of Bank Structures Existing Wetland Photo Point Crest Gage Cross -Section _. Vegetation Monitoring Plots (VP) - MY4 0 Criteria Met Stream Areas of Concern -MY4 ® Scour/Erosion Bed Aggradation Vegetation Areas of Concern - MY4 \' Invasive Plant Population Figure 3.1 Integrated Current Condition Plan View Map (Sheet 1 of 3) Hogan Creek Stream Mitigation Project DMS Project No. 94708 W I L n L A N D S' 0 125 250 Feet Monitoring Year 4- 2018 ENC IN EERINC I I I I t Surry County, NC Figure 3.2 Integrated Current Condition Plan View Map (Sheet 2 of 3) Hogan Creek Stream Mitigation Project DMS Project No. 94708 w I L n L A N D S' 0 150 300 Feet Monitoring Year 4- 2018 ENC IN EERINC I i i I t Surry County, NC Figure 3.3 Integrated Current Condition Plan View Map (Sheet 3 of 3) PAW Hogan Creek Stream Mitigation Project DMS Project No. 94708 w I L n L A N D S' 0 125 250 Feet Monitoring Year 4- 2018 ENC IN EERINC I i i I t Surry County, NC Table 6a. Visual Stream Morphology Stability Assessment Table Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Hogan Creek Reach 1 (Assessed Length : 1,961 feet) Major Channel Category Channel Sub -Category Metric Number Stable, Performing as Intended Total Number in As -built Number of Unstable Segments Amount of Unstable Footage %Stable, Performing as Intended Numberwith Stabilizing Woody Vegetation Footage with Stabilizing Woody Vegetation Adjusted %for Stabilizing Woody Vegetation 1. Vertical Stability (Riffle and 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include point bars) 8 190 90% Run units) 2. Degradation - Evidence of downcutting 0 0 100% 2. Riffle Condition 1. Texture/Substrate - Riffle maintains coarser substrate 14 14 100% 1. Bed 1. Death Sufficient (Max Pool Depth : Mean Bankfull Depth > 1.6) 13 13 100% 3. Meander Pool Condition 2. Length appropriate (>30% of centerline distance between tail of upstream riffle and head of downstrem riffle) 13 13 100% 1. Thalweg centering at upstream of meander bend (Run) 13 13 100% 4.Thalweg Position 2. Thalweg centering at downstream of meander (Glide) 13 13 100% 1. Scoured/Eroding Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion 9 365 91% 4 95 93% 2. Bank 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 N/A 3. Mass Wasting Bank slumping, calving, or collapse 0 0 100% 0 0 N/A mmm Totals 9 365 91% 4 95 93% 1. Overall Integrity Structures physically intact with no dislodged boulders or logs. 15 15 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill. 5 5 100% 3. Engineered Structures 2a. Piping Structures lacking any substantial flow underneath sills or arms. 12 12 100% 3. Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. (See guidance for this table in EEP monitoring guidance document) 13 15 87% 4. Habitat Pool forming structures maintaining" Max Pool Depth : Mean Bankfull Depth ratio> 1.6 Rootwads/logs providing some cover at base -flow. 13 15 87% Table 6b. Visual Stream Morphology Stability Assessment Table Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Hogan Creek Reach 2 (Assessed Length : 992 feet) Major Channel Category Channel Sub -Category Metric Number Stable, Performing as Intended Total Number in As -built Number of Unstable Segments Amount of Unstable Footage %Stable, Performing as Intended Numberwith Stabilizing Woody Vegetation Footage with Stabilizing Woody Vegetation Adjusted %for Stabilizing Woody Vegetation 1. Vertical Stability (Riffle and 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include point bars) 2 30 97% Run units) 2. Degradation - Evidence of downcutting 0 0 100% 2. Riffle Condition 1. Texture/Substrate - Riffle maintains coarser substrate 4 6 67% 1. Bed 1. Death Sufficient (Max Pool Depth : Mean Bankfull Depth > 1.6) 4 5 80% 3. Meander Pool Condition 2. Length appropriate (>30% of centerline distance between tail of upstream riffle and head of downstrem riffle) 4 5 80% 1. Thalweg centering at upstream of meander bend (Run) 4 5 80% 4.Thalweg Position 2. Thalweg centering at downstream of meander (Glide) 4 5 80% 1. Scoured/Eroding Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion 5 200 90% 0 0 N/A 2. Bank 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 N/A 3. Mass Wasting Bank slumping, calving, or collapse 0 0 100% 0 0 N/A Totals S 200 90% 0 0 N/A 1. Overall Integrity Structures physically intact with no dislodged boulders or logs. 5 6 83% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill. 1 1 100% 3. Engineered Structures 2a. Piping Structures lacking any substantial flow underneath sills or arms. 4 5 80% 3. Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. (See guidance for this table in EEP monitoring guidance document) S 6 83% 4. Habitat Pool forming structures maintaining" Max Pool Depth : Mean Bankfull Depth ratio> 1.6 Rootwads/logs providing some cover at base -flow. 5 6 83% Table 6c. Visual Stream Morphology Stability Assessment Table Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 UT2 (Assessed Length : 930 feet) Major Channel Category Channel Sub -Category Metric Number Stable, Performing as Intended Total Number in As -built Number of Unstable Segments Amount of Unstable Footage %Stable, Performing as Intended Numberwith Stabilizing Woody Vegetation Footage with Stabilizing Woody Vegetation Adjusted %for Stabilizing Woody Vegetation 1. Vertical Stability (Riffle and 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include point bars) 1 40 96% Run units) 2. Degradation - Evidence of downcutting 0 0 100% 2. Riffle Condition 1. Texture/Substrate - Riffle maintains coarser substrate 12 14 86% 1. Bed 1. Death Sufficient (Max Pool Depth : Mean Bankfull Depth > 1.6) 13 13 100% 3. Meander Pool Condition 2. Length appropriate (>30% of centerline distance between tail of upstream riffle and head of downstrem riffle) 13 13 100% 1. Thalweg centering at upstream of meander bend (Run) 13 13 100% 4.Thalweg Position 2. Thalweg centering at downstream of meander (Glide) 13 13 100% 1. Scoured/Eroding Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion 0 0 100% 0 0 100% 2. Bank 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% Totals 0 0 100% 0 0 100% 1. Overall Integrity Structures physically intact with no dislodged boulders or logs. 6 6 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill. 2 2 100% 3. Engineered Structures 2a. Piping Structures lacking any substantial flow underneath sills or arms. 4 4 100% 3. Bank Protection Bank erosion within the structures extent of influence 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% Table 6d. Visual Stream Morphology Stability Assessment Table Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 UT3 (Assessed Length : 275 feet) Major Channel Category Channel Sub -Category Metric Number Stable, Performing as Intended Total Number in As -built Number of Unstable Segments Amount of Unstable Footage %Stable, Performing as Intended Numberwith Stabilizing Woody Vegetation Footage with Stabilizing Woody Vegetation Adjusted %for Stabilizing Woody Vegetation 1. Vertical Stability (Riffle and 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include point bars) 0 0 100% Run units) 2. Degradation - Evidence of downcutting 0 0 100% 2. Riffle Condition 1. Texture/Substrate - Riffle maintains coarser substrate 4 4 100% 1. Bed 1. Death Sufficient (Max Pool Depth : Mean Bankfull Depth > 1.6) 4 4 100% 3. Meander Pool Condition 2. Length appropriate (>30% of centerline distance between tail of upstream riffle and head of downstrem riffle) 4 4 100% 1. Thalweg centering at upstream of meander bend (Run) 4 4 100% 4.Thalweg Position 2. Thalweg centering at downstream of meander (Glide) 4 4 100% 1. Scoured/Eroding Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion 0 0 100% 0 0 100% 2. Bank 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% Totals 0 0 100% 0 0 100% 1. Overall Integrity Structures physically intact with no dislodged boulders or logs. 1 1 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill. 1 1 100% 3. Engineered Structures 2a. Piping Structures lacking any substantial flow underneath sills or arms. 1 1 100% 3. Bank Protection Bank erosion within the structures extent of influence 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 Bankfull Depth ratio> 1.6 Rootwads/logs providing some cover at base -flow. 1 1 100% Table 7. Visual Stream Morphology Stability Assessment Table Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Planted Acreage 6.7 Easement Acreage 36 Vegetation Category Definitions Mapping CCPV Depiction Number of Combined % of Planted Vegetation Category Definitions 1000 SF CCPV Depiction 24 1.84 5.1% Threshold Polygons Acreage Acreage S. Easement Encroachment Areas Areas or points (if too small to render as polygons at map scale). none Cross Hatch 0 0.00 0.0% 1. Bare Areas Very limited cover of both woody and herbaceous material. 0.1 acres 2 0.01 0.1% Yellow 2. Low Stem Density Areas Woody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria. 0.1 acres N/A 0 0.00 0.0% Total 2 0.01 0.1% 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 N/A 0 0.00 0.0% Cumulative Total 0 0.01 0.1% Easement Acreage 36 Vegetation Category Definitions Mapping Threshold CCPV Depiction Number of Polygons Combined Acreage % of Easement Acreage 4. Invasive Areas of Concern Areas or points (if too small to render as polygons at map scale). 1000 SF Cross Hatch Green 24 1.84 5.1% S. Easement Encroachment Areas Areas or points (if too small to render as polygons at map scale). none N/A 0 0.00 0.0% Stream Photographs 'i�_y��i�y���vg. i �- _ -OW F. p � - t �'► �' a �'_. � �� "Oro" 'i�_y��i�y���vg. i �� Vii`' fiY�-,�,:• it z f`. 1d�54 # 1C 2018 14 46 .v r -tk ..1111 1p 11 •• /• / �� �. • /• / TM �� a^+ {1� Wv 'r `�"'':' y°I• at P a.w �4 �" k s 4 � i° - per ��'^1 � � •`�',-y.w.,y rt�,��`� � 1tt'�4r��`- � ' p� r$� �"� _ *� �f� I � ��f I i� 4r Y 4 � F� •1 •• •• . I. I •• •• . 1. I �NI 34-'r," Is CYC -k s 'tP i - i L k �.iz" � �• �-,gn-�� �z to r _ -0 k 06.06.261 B 14.35 • � i ��ir �� �' 1 •� Y i/ PP9 — Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP10 — Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP11— Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP12 — Reach 1 Hogan Creek, looking downstream (6/06/2018) PP13 — Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP14 — Reach 1 Hogan Creek, looking downstream (6/06/2018) If vw -40tf a � i rr••.2, -`� �7 �� MSL � i i 8 x k � - _u 46.06 2018 1.4 02 Yi w i �l§. iii • .•i:T py a. i?l i t �F i1y'��. t• J J ... C, R - If vw -40tf a � i rr••.2, -`� �7 �� MSL � i i 8 x k � - _u 46.06 2018 1.4 02 PP19 — Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP20 — Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP21— Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP22 — Reach 1 Hogan Creek, looking downstream (6/06/2018) PP23 — Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP24 — Reach 1 Hogan Creek, looking downstream (6/06/2018) `N IJ i f r x � �� � �! _ � � * ' • � Hyl' I , �. .� mak• ^ n a - AAS_W �ya _ 4A& a � Y asF=. r 0�- 20148 T3 09 �� � �! _ � � * ' • � Hyl' I , �. .� mak• ^ n a - AAS_W �ya _ 4A& .•Yi �� � �! _ � � * ' • � Hyl' I , �. .� mak• ^ n a - AAS_W �ya _ 4A& PP28C — UT3, looking upstream (6/06/2018) 1 PP29 — Reach 2 Hogan Creek, looking downstream (6/06/2018) 1 PP30 — Reach 2 Hogan Creek, looking downstream (6/06/2018) 1 PP31— Reach 2 Hogan Creek, looking downstream (6/06/2018) PP32 — Reach 2 Hogan Creek, looking downstream (6/06/2018) Vegetation Photographs t 7"'. Ww tv ' ��� �'�" t�" } '--� T_;~ k Vis+- .�, � 4.�,��t-.+�+��}`♦,� .� , ,..� �., ' ��.�'C r � '\ •', �.1� ! '.��c`- .F, y�?'a' '_ {, rA fir+ �. t ! r ..€.ms's I� ` • �.'" �° "�'"c fes` � �l • - '. '3M'$✓ y$T, ,,$$� y i v +jr • • I: IIn• • gi I: ��; '� � � • � ��� �!' s� to "� ,�Y �� - � � ` �,.,�'a '�3 Via. APPENDIX C. Vegetation Plot Data Table 8. Vegetation Plot Criteria Attainment Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Plot MY4 Success Criteria Tract Mean 1 y 100% 2 y 3 Y 4 Y 5 Y 6 Y Table 9. CVS Vegetation Plot Metadata Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Database Name cvs-eep-entrytool-v2.3.1 Hogan MY4.mdb Database Location Q:\ActiveProjects\005-02152 Hogan Monitoring\Monitoring\MY4\Vegetation Assessment Computer Name MIMI-PC File Size 61771776 DESCRIPTION OF WORKSHEETS IN THIS DOCUMENT------------ Metadata Description of database file, the report worksheets, and a summary of project(s) and project data. Proj, planted Each project is listed with its PLANTED stems per acre, for each year. This excludes live stakes. Proj, total stems Each project is listed with its TOTAL stems per acre, for each year. This includes live stakes, all planted stems, and all natural/volunteer stems. Plots List of plots surveyed with location and summary data (live stems, dead stems, missing, etc.). Vigor Frequency distribution of vigor classes for stems for all plots. Vigor by Spp Frequency distribution of vigor classes listed by species. Damage List of most frequent damage classes with number of occurrences and percent of total stems impacted by each. Damage by Spp Damage values tallied by type for each species. Damage by Plot Damage values tallied by type for each plot. Planted Stems by Plot and Spp A matrix of the count of PLANTED living stems of each species for each plot; dead and missing stems are excluded. ALL Stems by Plot and spp A matrix of the count of total living stems of each species (planted and natural volunteers combined) for each plot; dead and missing stems are excluded. PROJECT SUMMARY ------------------------------------- Project Code 94708 Project Name Hogan Creek Description River Basin Length(ft) Stream -to -edge Width (ft) Area (sq m) Required Plots (calculated) Sampled Plots 6 Required Plots (calculated) 6 Sampled Plots 6 Table 10. Planted and Total Stem Counts Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Current Plot Data (MY4 20181 Scientific Name Common Name 94708-01-0001 Species Type PnoLS P -all T 94708-01-0002 PnoLS P -all T 94708-01-0003 PnoLS P -all T 94708-01-0004 PnoLS P -all T 94708-01-0005 PnoLS P -all T 94708-01-0006 PnoLS P -all T Acer rubrum red maple Tree 1 7 1 5 Betula nigra river birch Tree 10 Betula nigra river birch Tree 3 3 128 10 169 45 1 1 9 6 6 6 common persimmon Tree 4 1 Diospyros virginiana common persimmon Tree 11 11 9 9 9 10 10 10 Fraxinuspennsylvanica green ash Tree 17 4 4 4 6 6 6 Fraxinus pennsylvanica green ash Tree 3 3 3 3 3 3 2 2 2 4 4 4 1 1 1 Juglons nigra black walnut Tree 3 Liriodendron tulipifera tuliptree Tree 70 62 3 64 Liriodendron tulipifera tuliptree Tree blackgum Tree 2 12 12 12 12 12 2 2 2 15 2 2 2 2 2 2 Nysso sylvatica blackgum Tree 3 2 15 Platanus occidentalis 2 2 2 Pinus toeda loblolly pine Tree 14 17 6 14 20 14 14 15 2 14 31 2 black cherry Tree 3 27 2 Platanus occidentalis American sycamore Tree 2 2 2 3 3 19 1 1 1 8 8 8 2 1 1 Prunus serotina black cherry Tree Quercus lyroto overcup oak Tree 13 13 13 15 15 15 17 17 17 16 Quercus alba white oak Tree 16 16 Quercus phellos willow oak ITree 6 6 6 4 4 4 1 1 1 1 1 1 2 Quercus lyrota overcupoak Tree 1 1 1 2 2 2 4 4 4 1 1 1 3 3 3 5 5 5 Quercus phellos willow oak Tree 6 6 6 6 2 2 2 size (ACRES) 0.148 Stem count 9 9 142 8 8 69 8 8 18 19 19 36 10 30 20 13 13 19 6 10 size (ares) 7 1 7 7 1 7 7 1 1 479 479 1 465 465 1 472 2259 size (ACRES) 438 0.0247 452 452 0.0247 0.0247 0.0247 0.0247 0.0247 Species count 4 4 6 3 3 4 4 4 5 4 4 6 4 4 7 3 3 7 Stems per ACRE 364 364 1 5747 324 324 2792 324 728 769 769 1457 405 405 809 526 526 769 Annual Means Scientific Name Common Name MYO (20 5) Species Type PnoLSTP-all T MY1 (2015) PnoLS P -all T MY2 (20 6) PnoLS P -all T MY3 (2017) PnoLS P -all T MY4 (2018) PnoLS P -all T Acer rubrum red maple Tree 1 7 1 5 Betula nigra river birch Tree 10 10 10 10 10 149 10 10 169 10 10 165 10 10 193 Diospyros virginiana common persimmon Tree 11 11 11 9 9 9 10 10 10 Fraxinuspennsylvanica green ash Tree 17 17 17 14 14 14 15 15 15 13 13 13 13 13 13 Juglons nigra black walnut Tree 1 2 3 Liriodendron tulipifera tuliptree Tree 70 62 64 19 Nyssa sylvatica blackgum Tree 12 12 12 12 12 12 2 2 2 2 2 2 2 2 2 Pinus taeda loblolly pine Tree 3 2 15 Platanus occidentalis American sycamore Tree 13 13 13 14 14 17 14 14 20 14 14 15 14 14 31 Prunus serotina black cherry Tree 27 41 33 Quercus alba white oak Tree 2 1 1 Quercus lyroto overcup oak Tree 13 13 13 15 15 15 17 17 17 16 16 16 16 16 16 Quercus phellos willow oak ITree 6 6 6 4 4 4 1 1 1 1 1 1 2 2 2 Stem count 71 71 102 69 69 330 70 70 335 65 65 294 67 67 304 size (ares) 6 6 6 6 6 size (ACRES) 0.148 0.148 0.148 0.148 0.148 Species count 6 6 10 6 6 10 7 7 12 7 7 11 7 7 10 Stems per ACRE 479 479 688 465 465 2226 472 2259 438 438 1983 452 452 2050 Color for Density Exceeds requirements by 10 Exceeds requirements, but by less than 10o Fails to meet requirements, by less than 10 Fails to meet requirements by more than Volunteer species included in total PnoLS: Number of planted stems excluding live stakes P -all: Number of planted stems including live stakes T: Total stems APPENDIX D. Morphological Summary Data and Plots Table 11a. Baseline Stream Data Summary Hogan Creek Stream Mitigation Project DMS Project No.94708 Monitoring Year 4 - 2018 Hogan Creek - Reach 1(1,532 feet) Parameter Gage Regional Curve Pre -Existing Condition Reference Reach Data Design Monitoring Baseline LL UL Eq. Min Mean Med Max SD n Min Mean Med Max SD n Min I Med I Max Min I Mean I Med Max SD n Dimension and Substrate - Riffle Only Bankfull Width (ft) N/A 21.5 25.7 29.7 27.2 30.4 33.62-_.6 2.5 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 72.50.0 150.0 200.0 >100 >100 >100 >100 N/A 2 Bankfull Mean Depth (ft) 2.0 1.9 2.1 1.9 2.0 2.2.8 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 2.7.5 2.6 2.8 2.7 2.8 2.8 2.9 N/A 2 Bankfull Cross Sectional Area (ft)45.1 48.6 59.3 50.8 61.6 72.40 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 15.62.1 12.3 12.5 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 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 1.1.0 1.0 1.0 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 0.0191 0.0200.021 0.007 0.010 0.013 0.002 0.010 0.018 8 Pool Length (ft) N/A - - - - - - 25.0 62.6 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) - - - - - - - 73.3 120.9 200.08 - 12 Pattern Channel Beltwidth (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 Rc:Bankfull width (ft/ft) N/A 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 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 Substrate, Bed, and Transport parameters Ri%/ Ru%/ P%/ G%/ S% - - - SC%/ Sa%/ G%/ C%/ B%/ Be% 0%,3.5%,96%,0.5%,0%,0% d16 / d35 / d50 / d84 / d95 (mm) 14, 19, 23, 41, 56 Reach Shear Stress (competency) lb/f' N/A Max part size (mm) mobilized at bankfull Stream Power (transport capacity) W/mZ Additional Reach Parameters Rosgen Classification N/A C4 C4 C4 C4 Bankfull Velocity (fps) - Bankfull Discharge (cfs) - 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 (ft/ft) 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 Table 11b. Baseline Stream Data Summary Hogan Creek Stream Mitigation Project DMS Project No.94708 Monitoring Year 4 - 2018 Hogan Creek - Reach 2 (1,085 feet) Parameter Gage Regional Curve Pre -Existing Condition Reference Reach Data Design Monitoring Baseline LL UL Eq. Min Mean Med Max SD n Min Mean Med Max SD n Min I Med I Max Min Mean I Med I Max SD n Dimension and Substrate - Riffle Only Bankfull Width (ft) N/A 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 2.6 2.8 3.2 3.4 3.4 3.6 N/A 2 Bankfull Cross Sectional Area (ft) 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 12.1 12.3 12.5 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 1.0 1.0 N/A 2 Profile Riffle Length (ft) - - - - - - - - - 95.63 111.62 - 130.25 5 Riffle Slope (ft/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) N/A - - - - - - - - - 43.7 68.8 117.1 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 Beltwidth (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 Rc:Bankfull width (ft/ft) N/A 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 (ft) 133.0 297.0 479.0 81.0 81.0 81.0 133.0 311.0 325.0 292.0 307.0 301.0 328.0 18.7 3 Meander Width Ratio 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 Substrate, Bed, and Transport parameters 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/f2 N/A Max part size (mm) mobilized at bankfull Stream Power (transport capacity) W/mZ Additional Reach Parameters Rosgen Classification N/A C4 C4 C4 C4 Bankfull Velocity (fps) - - Bankfull Discharge (cfs) 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) (ft/ft) 0.0064 0.0127 0.0071 0.0050 BF slope (ft/ft) 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 Table 11c. Baseline Stream Data Summary Hogan Creek Stream Mitigation Project DMS Project No.94708 Monitoring Year 4 - 2018 UT2 (675 feet) Parameter Gage Regional Curve Pre -Existing Condition Reference Reach Data Design Monitoring Baseline LL UL Eq. Min Mean Med Max SD n Min Mean Med Max SD n Min Med Max Min Mean Med Max SD n Dimension and Substrate - Riffle Only Bankfull Width (ft) N/A 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 Bankfull Max Depth (ft) 2.1 1.2 1.0 0.9 1.1 1.1 1.2 N/A 2 Bankfull Cross Sectional Area (ft2) 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 0.0381 0.014 0.028 0.052 11 Pool Length (ft) N/A - - - - - 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 (ft) - - - 13.1 54.8 151.0 11 Pattern Channel Beltwidth (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 Rc:Bankfull width (ft/ft) N/A 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 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 Substrate, Bed, and Transport parameters Ri% / Ru%/ P%/ G%/ S% - - SC%/ Sa%/ G%/ C%/ 3%/ Be% N/A d16/d35/d50/d84/d95 (mm) N/A Reach Shear Stress (competency) Ib/f2 N/A Max part size (mm) mobilized at Bankfull Stream Power (transport capacity) W/mZ - Additional Reach Parameters Rosgen Classification N/A E4b E4b B4 64 Bankfull Velocity (fps) - - Bankfull Discharge (cfs) - Valley length (ft) 641 1,350 544 Channel Thalweg length (ft) 568 1,980 555 675 Sinuosity (ft) 1.33 1.47 1.4 1.24 Water Surface Slope (Channel) (ft/ft) 0.0235 0.0263 0.0223 0.0218 BF slope (ft/ft) 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 Table 12. Morphology and Hydraulic Summary (Dimensional Parameters - Cross -Section) Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Hogan Reach 1 (1,532 feet) Based on fixed baseline bankfull elevation Base MY1 MY2 MY3 I MY4 21 MY5 Base I MYl MY2 MY3 I MY4 21 MY5 Base I MYl I MY2 MY3 MY42 MYS bankfull elevation (ft) 990.8 990.8 990.8 990.8 991.0 990.7 990.7 990.7 990.7 990.8 987.6 987.6 987.6 987.6 987.4 low bank elevation (ft) 990.8 990.8 990.9 990.9 990.8 990.7 990.7 990.7 990.6 990.6 987.6 987.6 987.7 987.9 987.9 Bankfull Width (ft) 25.6 25.4 25.6 22.7 29.4 29.1 30.6 26.2 25.8 29.1 22.8 22.9 22.9 22.4 19.1 Floodprone Width (ft) >100 >100 >100 >100 >100 N/A N/A N/A N/A N/A >100 >100 >100 >100 >100 Bankfull Mean Depth (ft) 1.7 1.6 1.7 1.8 1.5 2.0 2.2 2.0 2.1 2.0 1.8 2.0 2.4 2.5 2.2 Bankfull Max Depth (ft) 2.9 2.9 3.2 3.3 3.4 4.5 4.9 4.9 4.4 4.8 2.7 3.6 4.0 1 4.0 3.4 Bankfull Cross Sectional Area (ft)1 43.9 41.8 44.2 39.9 1 43.9 1 57.6 66.7 64.2 54.9 1 57.6 1 41.4 45.9 54.6 55.3 41.4 Bankfull Width/Depth Ratio 14.9 15.4 14.8 12.9 19.7 14.7 14.1 10.7 12.1 14.7 12.6 11.4 9.6 9.1 8.8 Bankfull Entrenchment Ratio >3.9 >3.9 >3.8 >4.4 N/A N/A N/A N/A N/A N/A >4.4 >4.4 >4.4 >4.5 >5.2 Bankfull Bank Height Ratio 1.0 1.0 1.0 1.0 �42 N/A N/A N/A N/A N/A 1.0 1.0 1.0 1.1 1.1 d50 (mm) 19 23 17 41 N/A N/A N/A N/A N/A N/A 26 29 6.9 1.0 7.1 Hogan Reach 2 (1,085 feet) Based on fixed baseline bankfull elevation Base Cross MYl -Section MY2 4 (Pool) MY3 MY4Z MY5 Base Cross MY1 -Section MY21 5 (Riffle) MY3 MY4Z MYS Base Cross MYl -Section MY2 6 (Riffle) MY3 MY4Z MY5 bankfull elevation (ft) 984.0 984.0 984.0 984.0 984.7 983.6 983.6 983.6 983.6 983.3 982.1 982.1 982.1 982.1 981.9 low bank elevation (ft) 984.0 984.0 984.0 984.0 984.0 983.6 983.6 983.7 983.8 983.8 982.1 982.1 982.0 981.9 981.9 Bankfull Width (ft) 44.6 45.5 44 43.2 60.4 24.2 24.8 23.6 24.7 23.7 24.7 28.1 28.2 28.7 26.1 Floodprone Width (ft) N/A N/A N/A N/A N/A >100 >100 >100 >100 >100 >100 >100 >100 >100 >100 Bankfull Mean Depth (ft) 2.2 2.1 1.6 1.7 1.6 1.9 2.0 2.4 2.5 1.9 2.3 2.0 2.2 2.1 2.2 Bankfull Max Depth (ft) 4.2 4.3 4.2 4.6 4.7 3.2 3.6 3.9 3.6 2.9 3.6 3.8 3.9 3.8 4.1 Bankfull Cross Sectional Area (ft) 98.9 95.4 69.1 72.5 98.9 45.2 49.2 56.6 61 45.2 56.6 56.5 61.1 61.4 56.6 Bankfull Width/Depth Ratio 20.1 21.7 28.1 25.7 36.9 13.0 12.5 9.8 10 12.4 10.8 14.0 13 13.4 12.0 Bankfull Entrenchment Ratio N/A N/A N/A N/A N/A >4.1 >4.0 >4.2 >4.0 >4.2 >4.0 >3.6 >3.5 >3.5 >3.8 Bankfull Bank Height Ratio N/A N/A N/A N/A N/A 1.0 1.0 1.0 1.0 1.2 1.0 1.0 1.0 <1.0 1.0 d50 (mm) N/A N/A N/A N/A N/A 27 32 6.4 41 29 31 30 0.18 64 56.1 UT2 (675 feet) ft . Based on fixed baseline bankfull elevation Base Cross MYl -Section MY21 7 (Riffle) MY3 MY4' .. MY5 Base Cross MY1 -Section MY2 8 (Pool) MY3 MY42 .. MY5 Base Cross MY1 -Section MY2 9 (Riffle) MY3 MY42 MYS bankfull elevation (ft) 989.4 989.4 989.4 989.4 989.7 988.2 988.2 988.2 988.2 988.5 986.4 986.4 986.4 986.4 986.9 low bank elevation (ft) 989.4 989.4 989.3 989.4 989.7 988.2 988.3 988.3 988.3 993.4 986.4 986.5 986.4 986.5 986.8 Bankfull Width (ft) 7.6 6.9 7.9 6.2 8.2 6.9 7.1 7.1 5.7 6.7 6.5 6.8 6.8 5.5 8.1 Floodprone Width (ft) 28.8 29.0 30 29.3 25.9 N/A N/A N/A N/A N/A 21.0 20.6 19.2 18.8 17.8 Bankfull Mean Depth (ft) 0.5 0.5 0.6 0.6 0.5 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.5 0.6 Bankfull Max Depth (ft) 0.9 1 1.0 1 1.1 1.0 1 1.0 1 1.0 1 1.3 1 1.0 1.3 1 1.2 1 1.2 1.1 1 0.9 1 0.8 1.1 Bankfull Cross Sectional Area (ft) 4.0 3.5 4.9 3.5 4.0 4.4 5.1 4.7 4.3 4.4 4.7 4.6 4.1 2.7 4.7 Bankfull Width/Depth Ratio 14.2 13.6 12.8 10.8 17.1 10.7 9.8 10.8 7.7 10.3 8.9 10.3 11.3 11.2 14.1 Bankfull Entrenchment Ratio 3.8 4.2 3.8 4.7 3.1 N/A N/A N/A N/A N/A 3.2 3.0 2.8 3.4 2.2 Bankfull Bank Height Ratio 1.0 1.0 1.0 1.0 1.0 N/A N/A N/A N/A N/A 1.0 1.0 1.0 1.1 <1.0 d50(mm) N/A N/A I N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A - Not Applicable 1Adjustment in survey points included in bankfull calculations resulting in change to previous monitoring year bankfull dimensions. ZPrior to MY4, bankfull dimensions were calculated using a fixed bankfull elevation. For MY4 through MY5 bankfull elevation is calculated using a fixed Abkf as described in the Standard Measurement of the BHR Monitoring Parameter provided by NCIRT and NCDMS (9/2018) Table 13a. Monitoring Data - Stream Reach Data Summary Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Hogan Creek -Reach 1 (1,532 feet) N/A - Not Applicable - Information Unavailable Min I Mean I Med I Max I SD I n I Min I Mean I Med I Max I SD I n I Min Mean I Med Max I SD I n Min Mean I Med I Max SD I n I Min I Mean I Med I Max SD n Min Mean Med Max SD n Dimension and Substrate - Riffle only 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 22.9 24.25 24.25 25.6 N/A 2 22.4 22.6 22.6 22.7 N/A 2 19.1 24.3 24.3 29.4 N/A 2 Floodprone Width (ft) >100 >100 >100 >100 N/A 2 >100 >100 >100 >100 N/A 2 >100 >100 >100 >100 N/A 2 >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 1.7 2.1 2.1 2.4 N/A 2 1.8 2.2 2.2 2.5 N/A 2 1.5 1.9 1.9 2.2 N/A 2 Bankfull 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 3.2 3.6 3.6 4 N/A 2 3.3 3.7 3.7 4.0 N/A 2 3.4 3.4 3.4 3.4 N/A 2 Bankfull Cross Sectional Area (ft2) 41.4 42.7 42.7 43.9 N/A 2 41.8 43.9 43.9 45.9 N/A 2 44.2 49.4 49.4 54.6 N/A 2 39.9 47.6 47.6 55.3 N/A 2 41.4 42.7 42.7 43.9 N/A 2 Width/Depth Ratio 12.6 13.8 13.8 14.9 N/A 2 11.4 13.4 13.4 15.4 N/A 2 9.6 12.2 12.2 14.8 N/A 2 9.1 11.0 11.0 12.9 N/A 2 8.8 14.3 14.3 19.7 N/A 2 Entrenchment Ratio >3.9 1 >4.2 1 >4.2 1 >4. 1 N/A 1 2 1 >3.9 1 >4.2 1 >4.2 1 >4.4 1 N/A 1 2 1 >3.8 >4.1 1 >4.1 >4.4 N/A 2 >4.4 >4.45 >4.45 >4.5 N/A 2 >3.4 F>4.3 >4.3 >5.2 N/A 2 Bank Height Ratiol 1.0 1 1.0 1 1.0 1 1.0 1 N/A 1 2 1 1.0 1 1.0 1 1.0 1 1.0 1 N/A 1 2 1 1.0 1 1.0 1 1.0 1 1.0 1 N/A 1 2 1 1.0 1 1.1 1 1.1 1 1.1 1 N/A 1 2 1 0.9 1 1.0 1 1.0 1 1.1 N/A 2 Profile Riffle Length (ft) 37.17 58.9 - 98.4 8 15.0 62.1 73.5 98.0 8 11.7 23.2 23.6 38 10 10.1 29.0 26.1 53.3 10 16.6 43.0 37.4 97.6 11 Riffle Slope (ft/ft) 0.002 0.010 0.018 8 0.006 0.013 0.011 0.020 8 0.011 0.05 0.022 0.057 10 0.011 0.029 0.022 0.072 10 0.007 0.023 0.021 0.051 11 Pool Length (ft) 25.0 62.6 88.0 13 20.0 67.1 76.0 105.0 13 30.87 85.3 89.5 140.8 13 32.4 100.7 115.4 170.7 12 13.8 98.1 99.7 172.0 11 Pool Max depth (ft) 2.5 3.2 4.1 13 2.8 3.7 3.4 4.8 13 2.3 3.7 3.6 5.1 13 2.4 3.8 3.8 5.8 12 3.2 4.0 3.9 5.6 11 Pool Spacing (ft) 73.3 120.9 200.1 12 52.0 112.8 111.0 148.0 12 57 110.1 103 204.0 12 46.9 122.5 120.9 180.5 11 61.5 132.0 129.1 230.6 10 Pattern Channel Beltwidth (ft) 63.0 96.5 101.0 121.0 24.9 4 Radius of Curvature (ft) 70.0 76.5 75.0 86.0 6.8 4 Rc:Bankfull width (ft/ft) 2.9 3.2 3.1 3.6 N/A N/A Meander Wavelength (ft) 165.0 263.7 306.0 320.0 85.7 3 Meander Width Ratio 2.6 4.0 4.2 5.0 N/A N/A Additional Reach Parameters Rosgen Classification C4 C4 C4 C4 C4 Channel Thalweg length (ft) 1,532 1,530 1,532 1,532 1,532 Sinuosity (ft) 1.18 1.18 1.18 1.18 1.18 Water Surface Slope (Channel) (ft/ft) 0.0063 0.0064 0.007 0.0064 0.0060 BF slope (ft/ft) 0.0067 0.0069 0.0069 0.0068 0.0067 Ri%/Ru%/P%/G%/S% -- - - - - - - - - - - - - - - - - - - SC%/ Sa%/ G%/ C%/ B% / Be% 0% 3.5%L96% 0.5% 0% 0% 0% 0.5% 98% 1.5% 0% 0% 13% 21.0% 64% 3.0% 0% 0% 12% 20% 53% 14.5% 0.5% 0% 5% 23% 58% 14.0% 0% 0% d16 / d35 / d50 / d84 / d95 / 14 19 23 41 56 13 21 27 44 62 0.19 6.1 10 1 33 50 0.20 5.6 21 63 139 0.40 1 7.5 1 17 61 1 105 % of Reach with Eroding Banks 0% 7% 9% 9% 9% Channel Stability or Habitat Metric::::::: Biological or Other 11iff= =E= I � � � � � � � � � � � E= N/A - Not Applicable - Information Unavailable Table 13b. Monitoring Data - Stream Reach Data Summary Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Hogan Creek -Reach 2 (1,085 feet) Min Mean Med I Max SD n Min Mean Med Max SD n Min Mean Med I Max SD n Min Mean Med I Max SD n Min Mean Med Max I SD I n JMinJMeanJMedJMaxJ SD n Dimension and Substrate - Riffle only 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 23.6 25.9 25.9 28.2 N/A 2 24.7 26.7 26.7 28.7 N/A 2 23.7 24.9 24.9 26.1 N/A 2 Floodprone Width (ft) >100 >100 >100 >100 N/A 2 >100 >100 >100 >100 N/A 2 >100 >100 >100 >100 N/A 2 >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 2.2 2.3 2.3 2.4 N/A 2 2.1 2.3 2.3 2.5 N/A 2 1.9 2.1 2.1 2.2 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 3.9 3.9 3.9 3.9 N/A 2 3.6 3.7 3.7 3.8 N/A 2 2.9 3.5 3.5 4.1 N/A 2 Bankfull Cross Sectional Area (ft2) 45.2 50.9 50.9 56.6 N/A 2 49.2 52.9 52.9 56.5 N/A 2 56.6 58.9 58.9 61.1 N/A 2 61.0 61.2 61.2 61.4 N/A 2 45.2 50.9 50.9 56.6 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 9.8 11.4 11.4 13.0 N/A 2 10.0 11.7 11.7 13.4 N/A 2 12 12.2 12.2 12.4 N/A 2 Entrenchment Ratio >4.0 1 >4.1 1 >4.1 1 >4.1 N/A 2 >3.6 >3.8 >3.8 >4.0 N/A 2 >3.5 >3.75 1 >3.75 1 >4.0 N/A 2 >3.5 >3.75 >3.75 >4.0 N/A 2 >3.8 >4.0 >4.0 >4.2 1 N/A 2 Bank Height Ratiol 1.0 1 1.0 1 1.0 1 1.0 N/A 1 2 1 1.0 1 1.0 1.0 1 1.0 1 N/A 1 2 1.0 1 1.0 1 1.0 1 1.0 1 N/A 1 2 1 0.9 1 1.0 1 1.0 1.0 N/A 2 1.0 1.1 1.1 1.2 N/A 2 Profile Riffle Length (ft) 95.6 111.6 - 130.3 5 56.0 91.0 101.0 125.0 5 24.7 51.8 46.9 97.6 5 19.6 46.3 43.2 68.2 5 51.5 94.0 69.9 151.2 5 Riffle Slope (ft/ft) 0.004 0.005 0.007 5 0.004 0.009 0.007 0.018 5 0.008 0.012 0.01 0.017 5 0.006 0.009 0.007 0.014 5 0.004 0.0089 0.009 0.012 5 Pool Length (ft) 43.7 68.8 117.1 5 60.0 87.3 64.0 135.0 5 29.91 74.4 75.4 107.0 5 54.0 71.1 58.1 117.1 5 42.3 98.1 87.5 184.1 5 Pool Max depth (ft) 3.8 4.7 5.8 5 4.0 4.8 4.6 5.7 5 3.77 4.4 4.4 5.4 5 3.5 4.5 4.4 6.0 5 4.2 4.9 4.5 6.0 5 Pool Spacing (ft) 164.1 208.4 253.1 4 169.0 196.5 189.5 238.0 4 93.7 134.2 129.4 201.0 4 76.8 140.8 142.6 201.3 4 188.1 202.1 203.0 214.4 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/ft) 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 4.7 4.8 5.8 N/A N/A Additional Reach Parameters Rosgen Classification C4 C4 C4 C4 C4 Channel Thalweg length (ft) 1,085 1,085 1,085 1,085 1,085 Sinuosity (ft) 1.37 1.37 1.37 1.37 1.37 Water Surface Slope (Channel) (ft/ft) 0.0050 0.0045 0.005 0.0054 0.0053 BF slope (ft/ft) 0.0053 0.0053 0.0053 0.0057 0.0062 Ri%/Ru%/P%/G%/S% - - - - - - - - - - - - - - - - - - - - - - - - - SC% / Sa% / G% / C% / B% / Be% 0% 3% 9% 89% 0% 0% 0% 0% 99% 1% 0% 0% 17% 50.0% 31% 2.0% 0% 0% 0% 13.0% 51% 32% 4% 0% 0% 5.0% 69% 23% 3% 0% d16 / d35 / d50 / d84 / d95 / 13 24 22 35 49 18 25 31 1 52 70 0.062 0.16 0.3 17 40 7.1 31 46 1 138 1 243 13 24 37 1 95 224 % of Reach with Eroding Banks 0% 2% 13% 6% 10% Channel Stability or Habitat Metric Biological or Other N/A - Not Applicable - Information Unavailable Table 13c. Monitoring Data - Stream Reach Data Summary Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 UT2 (675 feet) N/A - Not Applicable - Information Unavailable Min I Mean I Med I Max I SD I n I Min Mean I Med I Max I SD I n I Min Mean I Med Max SD n Min Mean Med Max SD I n Min Mean Med Max SD n Min Mean Med Max SD n Dimension and Substrate - Riffle only Bankfull Width (ft) 6.5 7.1 7.1 7.6 N/A 2 6.8 6.9 6.9 6.9 N/A 2 6.8 7.4 7.4 7.9 N/A 2 5.5 5.85 5.85 6.2 N/A 2 8.1 8.2 8.2 8.2 N/A 2 Floodprone Width (ft) 21 24.9 24.9 28.8 N/A 2 20.6 24.8 24.8 29.0 N/A 2 19.2 24.6 24.6 30 N/A 2 18.8 24.05 24.05 29.3 N/A 2 17.8 21.9 21.9 25.9 N/A 2 Bankfull Mean Depth (ft) 0.5 0.6 0.6 0.7 N/A 2 0.5 0.6 0.6 0.7 N/A 2 0.6 0.6 0.6 0.6 N/A 2 0.5 0.55 0.55 0.6 N/A 2 0.5 0.6 0.6 0.6 N/A 2 Bankfull Max Depth (ft) 0.9 1.1 1.1 1.2 N/A 2 1.0 1.1 1.1 1.1 N/A 2 0.9 1.0 1.0 1.1 N/A 2 0.8 0.9 0.9 1 N/A 2 1.0 1.1 1.1 1.1 N/A 2 Bankfull Cross Sectional Area (ft2) 4.0 4.4 4.4 4.7 N/A 2 3.5 4.1 4.1 4.6 N/A 2 4.1 4.5 4.5 4.9 N/A 2 2.7 3.1 3.1 3.5 N/A 2 4.0 4.4 4.4 4.7 N/A 2 Width/Depth Ratio 8.9 11.6 11.6 14.2 N/A 2 10.3 12.0 12.0 13.6 N/A 2 11.3 12.1 12.1 12.8 N/A 2 10.8 11 11 11.2 N/A 2 14.1 15.6 15.6 17.1 N/A 2 Entrenchment Ratiol 3.2 1 3.5 3.5 1 3.8 1 N/A 1 2 1 3.0 3.6 1 3.6 1 4.2 1 N/A 1 2 1 2.8 3.3 1 3.3 3.8 N/A 2 3.4 4.05 4.05 4.7 N/A 2 2.2 2.7 2.7 3.1 N/A 2 Bank Height Ratiol 1.0 1 1.0 1.0 1 1.0 1 N/A 2 1.0 1.0 1.0 1.0 N/A 2 1.0 1.0 1.0 1.0 N/A 2 1 1.05 1.05 1.1 N/A 2 0.9 1.0 1.0 1.0 N/A 2 Profile Riffle Length (ft) 14.3 34.4 - 67.3 11 12.0 28.9 29.0 62.0 11 7.88 29.3 25.6 69.8 11 12.4 26.8 24.4 45.9 11 5.2 19.7 16.6 55.4 16 Riffle Slope (ft/ft) 0.014 0.028 0.052 11 0.014 0.026 0.024 0.050 11 0.012 0.041 0.030 0.099 11 0.011 0.036 0.032 0.071 11 0.023 0.050 0.044 0.130 16 Pool Length (ft) 4.2 11.0 27.1 12 7.0 13.3 12.0 28.0 13 7.07 17.2 13.7 50.4 13 7.9 19.5 19.4 35.6 10 10.0 18.8 18.0 39.8 16 Pool Max depth (ft) 1.2 2.0 3.2 12 1.1 1.7 1.7 2.4 13 1.14 1.7 1.7 2.3 13 1.0 1.8 1.9 2.8 10 0.8 1.6 1.6 2.6 15 Pool Spacing (ft) 13.1 54.8 151.0 - 11 8.0 50.4 43.5 145.0 12 11.9 47.8 35.9 137.8 12 22.1 57.6 48.6 134.3 9 14.6 42.0 36.8 142.0 14 Pattern Channel Beltwidth (ft) 26.0 38.0 39.0 54.0 2.7 5 Radius of Curvature (ft) 19.0 21.6 22.0 26.0 2.4 6 Rc:Bankfull width (ft/ft) 2.7 3.0 3.1 3.7 N/A N/A Meander Wavelength (ft) 101.0 112.3 109.5 132.0 2.7 6 Meander Width Ratio 3.7 5.4 5.5 7.6 N/A N/A Additional Reach Parameters Rosgen Classification B4 B4 B4 B4 B4 Channel Thalweg length (ft) 675 670 675 675 675 Sinuosity (ft) 1.24 1.24 1.24 1.24 1.24 Water Surface Slope (Channel) (ft/ft) 0.0218 0.0208 0.0215 0.0205 0.0199 BF slope (ft/ft) 0.0229 0.0226 0.0224 0.0222 0.0224 Ri%/ Ru%/ P%/ G%/ S% SC%/Sa%/G%/C%/B%/Be% d16/d35/d50/d84/d95/ % of Reach with Eroding Banks Channel Stability or Habitat Metric Biological or Other 0% 1111110-, 0% 0% 11111111 0% 0% N/A - Not Applicable - Information Unavailable Cross -Section Plots Hogan Creek Stream Mitigation Project NCDMS Project No. 94708 Monitoring Year 4 - 2018 Cross -Section 1 -Hogan Creek Reach 1 22+67 Riffle 995 43.9 x -section area (ft.sq.) 29.4 width (ft) 994 993 mean depth (ft) 3.4 max depth (ft) 992 wetted perimeter (ft) c 991 0 hydraulic radius (ft) 990 v 989 width -depth ratio 988 W flood prone area (ft) 3.4 entrenchment ratio 987 0 10 20 30 40 50 60 Width (ft) low bank height ratio —MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea Bankfull Dimensions 43.9 x -section area (ft.sq.) 29.4 width (ft) 1.5 mean depth (ft) 3.4 max depth (ft) 30.8 wetted perimeter (ft) 1.4 hydraulic radius (ft) 19.7 width -depth ratio 100.0 W flood prone area (ft) 3.4 entrenchment ratio 0.9 low bank height ratio Survey Date: 7/2018 Field Crew: Kee Mapping & Surveying View Downstream Cross -Section Plots Hogan Creek Stream Mitigation Project NCDMS Project No. 94708 Monitoring Year 4 - 2018 Cross -Section 2 -Hogan Creek Reach 1 23+07 Pool 993 992 x -section area (ft.sq.) 991 width (ft) 2.0 mean depth (ft) 990 max depth (ft) 989 2 988 — w 987 1.8 986 14.7 width -depth ratio 985 0 10 20 30 40 50 60 Width (ft) —MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull Bankfull Dimensions 57.6 x -section area (ft.sq.) 29.1 width (ft) 2.0 mean depth (ft) 4.8 max depth (ft) 31.7 wetted perimeter (ft) 1.8 hydraulic radius (ft) 14.7 width -depth ratio Survey Date: 7/2018 Field Crew: Kee Mapping & Surveying View Downstream Cross -Section Plots Hogan Creek Stream Mitigation Project NCDMS Project No. 94708 Monitoring Year 4 - 2018 Cross -Section 3 -Hogan Creek Reach 1 26+78 Riffle 991 990 x -section area (ft.sq.) 989 width (ft) 988 mean depth (ft) 3.4 max depth (ft) c 987 0 wetted perimeter (ft) 986 v hydraulic radius (ft) 985 984 width -depth ratio 100.0 983 0 10 20 30 40 50 60 Width (ft) 5.2 —MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea Bankfull Dimensions 41.4 x -section area (ft.sq.) 19.1 width (ft) 2.2 mean depth (ft) 3.4 max depth (ft) 21.7 wetted perimeter (ft) 1.9 hydraulic radius (ft) 8.8 width -depth ratio 100.0 W flood prone area (ft) 5.2 entrenchment ratio 1.1 low bank height ratio Survey Date: 7/2018 Field Crew: Kee Mapping & Surveying View Downstream Cross -Section Plots Hogan Creek Stream Mitigation Project NCDMS Project No. 94708 Monitoring Year 4 - 2018 Cross -Section 4 -Hogan Creek Reach 2 33+68 Pool 987 x -section area (ft.sq.) 60.4 986 1.6 mean depth (ft) 985 max depth (ft) 62.2 984 1.6 hydraulic radius (ft) 983 0 2 width -depth ratio i 982 v 981 Ilk 980 979 0 10 20 30 40 50 60 70 80 Width (ft) —MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull Bankfull Dimensions 98.9 x -section area (ft.sq.) 60.4 width (ft) 1.6 mean depth (ft) 4.7 max depth (ft) 62.2 wetted perimeter (ft) 1.6 hydraulic radius (ft) 36.9 width -depth ratio Survey Date: 7/2018 Field Crew: Kee Mapping & Surveying View Downstream Cross -Section Plots Hogan Creek Stream Mitigation Project NCDMS Project No. 94708 Monitoring Year 4 - 2018 Cross -Section 5 -Hogan Creek Reach 2 34+49 Riffle 987 x -section area (ft.sq.) 23.7 986 985 1.9 mean depth (ft) 984 max depth (ft) c 983 0 wetted perimeter (ft) 1.7 982 v 981 12.4 width -depth ratio 980 W flood prone area (ft) 4.2 entrenchment ratio 1.2 low bank height ratio 979 0 10 20 30 40 50 60 70 80 Width (ft) —MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea Bankfull Dimensions 45.2 x -section area (ft.sq.) 23.7 width (ft) 1.9 mean depth (ft) 2.9 max depth (ft) 26.2 wetted perimeter (ft) 1.7 hydraulic radius (ft) 12.4 width -depth ratio 100.0 W flood prone area (ft) 4.2 entrenchment ratio 1.2 low bank height ratio Survey Date: 7/2018 Field Crew: Kee Mapping & Surveying View Downstream Cross -Section Plots Hogan Creek Stream Mitigation Project NCDMS Project No. 94708 Monitoring Year 4 - 2018 Cross -Section 6 -Hogan Creek Reach 2 37+95 Riffle 987 986 x -section area (ft.sq.) 26.1 width (ft) 2.2 mean depth (ft) 985 max depth (ft) 27.8 984 983 2.0 hydraulic radius (ft) 982 width -depth ratio 100.0 c 0 3.8 entrenchment ratio 981 980 low bank height ratio „°M 979 978 977 0 10 20 30 40 50 60 70 80 Width (ft) —MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea Bankfull Dimensions 56.6 x -section area (ft.sq.) 26.1 width (ft) 2.2 mean depth (ft) 4.1 max depth (ft) 27.8 wetted perimeter (ft) 2.0 hydraulic radius (ft) 12.0 width -depth ratio 100.0 W flood prone area (ft) 3.8 entrenchment ratio 1.0 low bank height ratio Survey Date: 7/2018 Field Crew: Kee Mapping & Surveying View Downstream Cross -Section Plots Hogan Creek Stream Mitigation Project NCDMS Project No. 94708 Monitoring Year 4 - 2018 Cross -Section 7-UT2 13+25 Riffle 994 4.0 x -section area (ft.sq.) 993 width (ft) 992 mean depth (ft) 991 max depth (ft) 990 0 2 wetted perimeter (ft) 989 v 988 hydraulic radius (ft) 987 width -depth ratio 25.9 W flood prone area (ft) 986 0 10 20 30 40 50 60 Width (ft) entrenchment ratio — MYO(6/2015) —MY1 (12/2015) —MY2 (6/2016) —MY3 (6/2017) tMY4 (7/2018) —Bankfull—Floodprone Area Bankfull Dimensions 4.0 x -section area (ft.sq.) 8.2 width (ft) 0.5 mean depth (ft) 1.0 max depth (ft) 8.5 wetted perimeter (ft) 0.5 hydraulic radius (ft) 17.1 width -depth ratio 25.9 W flood prone area (ft) 3.1 entrenchment ratio 1.0 low bank height ratio Survey Date: 7/2018 Field Crew: Kee Mapping & Surveying View Downstream Cross -Section Plots Hogan Creek Stream Mitigation Project NCDMS Project No. 94708 Monitoring Year 4 - 2018 Cross -Section 8-UT2 13+74 Pool 994 x -section area (ft.sq.) 6.7 993 0.7 mean depth (ft) 992 max depth (ft) 7.2 991 0.6 hydraulic radius (ft) 990 0 2 width -depth ratio 989 v 988 987 986 0 10 20 30 40 50 60 Width (ft) —MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull Bankfull Dimensions 4.4 x -section area (ft.sq.) 6.7 width (ft) 0.7 mean depth (ft) 1.2 max depth (ft) 7.2 wetted perimeter (ft) 0.6 hydraulic radius (ft) 10.3 width -depth ratio Survey Date: 7/2018 Field Crew: Kee Mapping & Surveying View Downstream Cross -Section Plots Hogan Creek Stream Mitigation Project NCDMS Project No. 94708 Monitoring Year 4 - 2018 Cross -Section 9-UT2 14+73 Riffle 992 4.7 x -section area (ft.sq.) 8.1 991 990 0.6 mean depth (ft) 1.1 max depth (ft) 8.4 989 988 0.6 hydraulic radius (ft) c 0 987 width -depth ratio 17.8 v 986 2.2 entrenchment ratio 985 low bank height ratio 984 0 10 20 30 40 50 60 Width (ft) —MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea Bankfull Dimensions 4.7 x -section area (ft.sq.) 8.1 width (ft) 0.6 mean depth (ft) 1.1 max depth (ft) 8.4 wetted perimeter (ft) 0.6 hydraulic radius (ft) 14.1 width -depth ratio 17.8 W flood prone area (ft) 2.2 entrenchment ratio 0.9 low bank height ratio Survey Date: 7/2018 Field Crew: Kee Mapping & Surveying View Downstream Longitudinal Profile Plots Hogan Creek Mitigation Project DMS Project No. 92343 Monitoring Year 4 - 2018 Hogan Creek Reach 1 (STA 14+29 - STA 29+61) 996 994 F ♦ _6Z ................ 989 992 d d c ♦ 990 d 988 ---------- -------------- --------• 987 a 986 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 Station (feet) -TW MY06/9/2015 -TW MY312/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018 • Structure MY47/9/2018 ----------- 991 ♦ 989 ♦ 987 a ----- ---•--•- ----------- -------- ♦ Reach Break oc _ ------ -- 985 ------------------------------ XS 1 XS 2 983 X53 981 2100 2150 2200 2250 2300 2350 2400 2450 2500 2550 2600 2650 2700 2750 2800 2850 2900 2950 3000 3050 3100 Station (feet) -TW MY06/9/2015 -TW MY312/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018 9 Structure MY47/9/2018 Longitudinal Profile Plots Hogan Creek Mitigation Project DMS Project No. 92343 Monitoring Year 4 - 2018 Hogan Creek Reach 2 (STA 30+11 - STA 40+96) 987 985 983 X54 XS5 _ ., w c 981 979 -------------- .-----•-- X56 7 977 975 3000 3050 3100 3150 3200 3250 3300 3350 3400 3450 3500 3550 3600 3650 3700 3750 3800 3850 3900 3950 4000 4050 4100 Station (feet) -TW MY06/9/2015 -TW MY312/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 tTW MY47/9/2018-------WSF MY47/9/2018 ♦ BKF MY47/9/2018 • Structure MY47/9/2018 Longitudinal Profile Plots Hogan Creek Mitigation Project DMS Project No. 92343 Monitoring Year 4 - 2018 UT2 (STA 8+70 - STA 15+45) 992 990 X57 XSS 988 `o w 986 984 982 1200 1250 1300 1350 1400 1450 1500 1550 Station (feet) -TW Myo 6/9/2015 -TW MY112/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018 999 997 • ............................ .. X59 y 995 00 u 993 991 989 850 900 950 1000 1050 1100 1150 1200 1250 Station (feet) -TW MY06/9/2015 -TW MY312/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 tTW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018 • STR MY47/9/2018 992 990 X57 XSS 988 `o w 986 984 982 1200 1250 1300 1350 1400 1450 1500 1550 Station (feet) -TW Myo 6/9/2015 -TW MY112/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018 • ............................ .. X59 992 990 X57 XSS 988 `o w 986 984 982 1200 1250 1300 1350 1400 1450 1500 1550 Station (feet) -TW Myo 6/9/2015 -TW MY112/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018 Cross -Section Pebble Count Plots Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Hogan Reach 1, Cross -Section 1 Particle Class Diameter (mm) min max Riffle 100- Count Summary Class Percent Percentage Cumulative SILT/CLAY Silt/Clay 0.000 0.062 42.0 D84 = 0 SPC�O Very fine 0.062 0.125 0 Fine 0.125 0.250 1 1 1 Medium 0.25 0.50 4 4 5 Coarse 0.5 1.0 4 4 9 Very Coarse 1.0 2.0 4 4 13 J�V Very Fine 2.0 2.8 13 Very Fine 2.8 4.0 2 2 15 Fine 4.0 5.6 3 3 18 Fine 5.6 8.0 2 2 20 Medium 8.0 11.0 2 2 22 Medium 11.0 16.0 4 4 26 Coarse 16.0 22.6 8 8 34 Coarse 22.6 32 8 8 42 Very Coarse 32 45 10 10 52 Very Coarse 45 64 21 21 73 LQ� Small 64 90 13 13 86 Small 90 128 9 9 95 Large 128 180 3 3 98 Large 180 256 2 2 100 �p Small 256 362 60 100 Small 362 512 100 Medium 512 1024 100 Large/Very Large 1024 2048 100 BEDROCK Bedrock 2048 >2048 50 100 Total 100 100 100 Hogan Reach 1, Cross -Section 1 Pebble Count Particle Distribution 100 90 SiIt/Clay Sand. ravelA. bble r 80 a roc 0 70 > 60 r ca 3 50 E u 40 y 30 v L a 20 10 0 0.01 0.1 1 10 100 1000 10000 Particle Class Size (mm) MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018 Cross -Section 1 Channel materials (mm) D16 = 4.47 D35 = 23.60 D50 = 42.0 D84 = 85.4 = P100 128.0 = 256.0 Hogan Reach 1, Cross -Section 1 Pebble Count Particle Distribution 100 90 SiIt/Clay Sand. ravelA. bble r 80 a roc 0 70 > 60 r ca 3 50 E u 40 y 30 v L a 20 10 0 0.01 0.1 1 10 100 1000 10000 Particle Class Size (mm) MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018 Hogan Reach 1, Cross -Section 1 Individual Class Percent 100 90 80 70 a u y a 60 50 m u 40 m 30 20 E 10 0 ti ti R � Dh o� Qooti y.Lh o,L� off' o ,Lw �� titi do �,L�O 3ti �O �,L� y�0 ��o roti �titi o,Loo�� ti ti 000 Particle Class Size (mm) ■ MYO-06/2015 MYl-12/2015 MY2-06/2016 ■ MY3-06/2017 ■ MY4-08/2018 Cross -Section Pebble Count Plots Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Hogan Reach 1, Cross -Section 3 Particle Class Diameter (mm) min max Riffle 100- Count Summary Class Percent Percentage Cumulative SILT/CLAY Silt/Clay 0.000 0.062 9 9 9 SPC�O Very fine 0.062 0.125 1 1 10 Fine 0.125 0.250 3 3 13 Medium 0.25 0.50 22 22 35 Coarse 0.5 1.0 4 4 39 Very Coarse 1.0 2.0 3 3 42 J�V Very Fine 2.0 2.8 42 Very Fine 2.8 4.0 1 1 43 Fine 4.0 5.6 5 5 48 Fine 5.6 8.0 3 3 51 Medium 8.0 11.0 6 6 57 Medium 11.0 16.0 12 12 69 Coarse 16.0 22.6 12 12 81 Coarse 22.6 32 5 5 86 Very Coarse 32 45 9 9 95 Very Coarse 45 64 4 4 99 LQ� Small 64 90 1 1 100 Small 90 128 100 Large 128 180 100 Large 180 256 100 �p Small 256 362 100 Small 362 512 100 Medium 512 1024 100 Large/Very Large1024 2048 100 BEDROCK Bedrock 2048 >2048 100 Total 100 100 100 Hogan Reach 1, Cross -Section 3 Pebble Count Particle Distribution 100 90 SiIt/clay and ravel bble r 80 a roc 0 70 > 60 r ca 3 50 E u 40 y 30 v L a 20 10 0 0.01 0.1 1 10 100 1000 10000 Particle Class Size (mm) MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018 Cross -Section 3 Channel materials (mm) D16 = 0.27 D3S = 0.50 D50 = 7.1 D84 = 27.8 D95 = 45.0 D100 = 90.0 Hogan Reach 1, Cross -Section 3 Pebble Count Particle Distribution 100 90 SiIt/clay and ravel bble r 80 a roc 0 70 > 60 r ca 3 50 E u 40 y 30 v L a 20 10 0 0.01 0.1 1 10 100 1000 10000 Particle Class Size (mm) MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018 Hogan Reach 1, Cross -Section 3 Individual Class Percent 100 90 80 70 a u y a 60 50 m u 40 m 30 20 E 10 01 0 16 0 p ti ti �� o° Doti yo tic o`' o� o tib' �� titi do ��� 3ti 00 �y� yoo ��o roti �titi otia o�� ti ti 000 Particle Class Size (mm) ■ MYO-06/2015 MYl-12/2015 MY2-06/2016 ■ MY3-06/2017 ■ MY4-08/2018 Cross -Section Pebble Count Plots Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Hogan Reach 2, Cross -Section 5 Particle Class Diameter (mm) min max Riffle 100- Count Summary Class Percent Percentage Cumulative SILT/CLAY Silt/Clay 0.000 0.062 29.0 D84 = 0 SPC�O Very fine 0.062 0.125 0 Fine 0.125 0.250 0 Medium 0.25 0.50 1 1 1 Coarse 0.5 1.0 1 1 2 Very Coarse 1.0 2.0 3 3 5 J�V Very Fine 2.0 2.8 1 1 6 Very Fine 2.8 4.0 1 1 7 Fine 4.0 5.6 3 3 10 Fine 5.6 8.0 1 1 11 Medium 8.0 11.0 2 2 13 Medium 11.0 16.0 10 10 23 Coarse 16.0 22.6 17 17 40 Coarse 22.6 32 14 14 54 Very Coarse 32 45 23 23 77 Very Coarse 45 64 14 14 91 LQ� Small 64 90 7 7 98 Small 90 128 1 1 99 Large 128 180 99 Large 180 256 1 1 100 �p Small 256 362 60 100 Small 362 512 100 Medium 512 1024 100 Large/Very Large 1024 2048 100 BEDROCK Bedrock 2048 >2048 50 100 Total 100 100 100 Hogan Reach 2, Cross -Section 5 Pebble Count Particle Distribution 100 90 SiIt/clay Sand ravel rble r gp 7r 0 70 > 60 r ca 3 50 E U= 40 y 30 v L a 20 10 0 _t7_414 0.01 0.1 1 10 100 1000 10000 Particle Class Size (mm) --I MYO-06/2015 MY1-12/2015 MY2-06/2016 --I MY3-06/2017 MY4-08/2018 Cross -Section 5 Channel materials (mm) D16 = 12.31 D35 = 20.42 D50 = 29.0 D84 = 53.7 = P100 77.8 = 256.0 Hogan Reach 2, Cross -Section 5 Pebble Count Particle Distribution 100 90 SiIt/clay Sand ravel rble r gp 7r 0 70 > 60 r ca 3 50 E U= 40 y 30 v L a 20 10 0 _t7_414 0.01 0.1 1 10 100 1000 10000 Particle Class Size (mm) --I MYO-06/2015 MY1-12/2015 MY2-06/2016 --I MY3-06/2017 MY4-08/2018 Hogan Reach 2, Cross -Section 5 Individual Class Percent 100 90 80 70 a u y a 60 50 m u 40 m 30 20 ALI E 10 L _L1 0 1.1 QDoti o ti ti Particle Class Size (mm) ■ MYO-06/2015 MYl-12/2015 MY2-06/2016 ■ MY3-06/2017 ■ MY4-08/2018 Cross -Section Pebble Count Plots Hogan Creek Stream Mitigation Project DMS Project No. 94708 Monitoring Year 4 - 2018 Hogan Reach 2, Cross -Section 6 Particle Class Diameter (mm) min max Riffle 100- Count Summary Class Percent Percentage Cumulative SILT/CLAY Silt/Clay 0.000 0.062 56.1 D84 = 0 SPO Very fine 0.062 0.125 0 Fine 0.125 0.250 0 Medium 0.25 0.50 0 Coarse 0.5 1.0 0 Very Coarse 1.0 2.0 4 4 4 J�V Very Fine 2.0 2.8 1 1 5 Very Fine 2.8 4.0 1 1 6 Fine 4.0 5.6 4 4 10 Fine 5.6 1 8.0 3 3 13 Medium 8.0 11.0 13 Medium 11.0 16.0 5 5 18 Coarse 16.0 22.6 8 8 26 Coarse 22.6 32 7 7 33 Very Coarse 32 45 7 7 40 Very Coarse 45 64 16 16 56 LQ� Small 64 90 13 13 69 Small 90 128 6 6 75 Large 128 1 180 11 11 86 Large 180 256 7 7 93 �p Small 256 362 6 6 99 Small 362 512 1 1 100 Medium 512 1024 100 Large/Very Large 1024 2048 100 BEDROCK Bedrock 2048 >2048 50 100 Total 100 100 100 Hogan Reach 2, Cross -Section 6 Pebble Count Particle Distribution 100 90 SiIt/Clay Sand ravel bbl r gp 777 0 70 > 60 r ca 3 50 E u 40 y 30 v L COL' 20 or 10 0 0.01 0.1 1 10 100 1000 10000 Particle Class Size (mm) MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018 Cross -Section 6 Channel materials (mm) D16 = 13.77 D35 = 35.27 D50 = 56.1 D84 = 169.2 = P100 287.3 = 512.0 Hogan Reach 2, Cross -Section 6 Pebble Count Particle Distribution 100 90 SiIt/Clay Sand ravel bbl r gp 777 0 70 > 60 r ca 3 50 E u 40 y 30 v L COL' 20 or 10 0 0.01 0.1 1 10 100 1000 10000 Particle Class Size (mm) MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018 Hogan Reach 2, Cross -Section 6 Individual Class Percent 100 90 80 70 a u y a 60 50 m u 40 m 30 20 E 10 W1,111 A I- d1f I k 0 ti ti �� o° Doti yp otic o`' 0 o tib' �� titi do ��� 3ti oo �y� yoo ��o roti �titi otic o�� , ti 000 Particle Class Size (mm) ■ MYO-06/2015 MYl-12/2015 MY2-06/2016 ■ MY3-06/2017 ■ MY4-08/2018 APPENDIX E. Hydrology Summary Data and Plots Table 14. Verification of Bankfull Events Hogan Creek Stream Mitigation Project DMS Project No.94708 Monitoring Year 4 - 2018 Reach Monitoring Year m"IDate of Data Collection Date of Occurrence Method Hogan Creek Reach 2 MY1* 10/26/2015 10/2/2015-10/3/2015 Crest Gage MY2 4/12/2016 4/1/2016-4/12/2016 Wrack Lines/Sediment Deposition MY3 7/5/2017 5/22/2017-5/23/2017 Wrack Lines MY4 4/19/2018 —4/16/2018 Crest Gage/Wrack Lines UT2 MY1 10/26/2015 10/2/2015-10/3/2015 Crest Gage MY2 8/2/2016 —6/16/2016 Crest Gage MY2 4/12/2016 4/1/2016-4/12/2016 Wrack Lines/Sediment Deposition MY3 7/5/2017 5/22/2017-5/23/2017 Crest Gage/Wrack Lines MY4 4/19/2018 4/16/2018 Crest Gage/Wrack Lines *Crest Gage was damaged from bankfull event Monthly Rainfall Data Hogan Creek Stream Mitigation Project DMS Project No.94708 Monitoring Year 4 - 2018 1 2018 rainfall collected from NC CRONOS Station Name: Dobson 2.3 SE, NC (NCSU, 2018) Z 30th and 70th percentile rainfall data collected from weather station ELKIN, NC (USDA, 2018) Hogan Creek 30-70 Percentile Graph for Rainfall in 2018 Surry County, NC 12.00 10.00 8.00 0 M M Q 6.00 U G1 i a 4.00 2.00-4 0.00 Jan -18 Feb -18 Mar -18 Apr -18 May -18 Jun -18 Jul -18 Aug -18 Sep -18 Oct -18 Dobson 2.3 SE, NC Date 70th percentile 30th percentile 1 2018 rainfall collected from NC CRONOS Station Name: Dobson 2.3 SE, NC (NCSU, 2018) Z 30th and 70th percentile rainfall data collected from weather station ELKIN, NC (USDA, 2018)