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HomeMy WebLinkAbout20190495 Ver 1_Year 0 Monitoring Report_2022_20220617Mitigation Project Information Upload ID#* 20190495 Version* 1 Select Reviewer: * Erin Davis Initial Review Completed Date 06/20/2022 Mitigation Project Submittal - 6/17/2022 .................................................................................................................................................................................................................................................................. Is this a Prospectus, Technical Proposal or a New Site? * 0 Yes O No Type of Mitigation Project:* Stream Wetlands Buffer Nutrient Offset (Select all that apply) Project Contact Information Contact Name: * Lindsay Crocker Email Address: * lindsay.crocker@ncdenr.gov Project Information ID#:* 20190495 Existing ID# Version:* 1 Project Type: DMS Mitigation Bank Project Name: Cowford County: Onslow Document Information ................................................................................................................................................................... Mitigation Document Type: * Mitigation As -Built Plans File Upload: Signature ............................................ Print Name: * Signature:* Cowfo rd_100900_MY0_2022. pdf Existing Version 46.79MB Please upload only one PDF of the complete file that needs to be submitted... Lindsay Crocker .66ree As-Built Baseline Monitoring Report FINAL COWFORD PROJECT NCDMS Project#100095 (Contract#0007746) USACE Action ID: SAW-2019-00487 DWR Project#2019-0495 Onslow County,North Carolina White Oak River Basin HUC 03030001 j 11 ..1.,:f-644,0,!. ..3,,.4 it ,44, 4 G :: • ' -�cY ,r`� _ h i -iZ'• m U / . . tilik'lkY):1” k •O_ Provided by: Ores Resource Environmental Solutions,LLC for Environmental Banc&Exchange,LLC Provided for: NC Department of Environmental Quality Division of Mitigation Services May 2022 MEMORANDUM res 3600 Glenwood Avenue, Suite 100 Raleigh, North Carolina 27612 919.770.5573 tel.919.829.9913 fax TO: Division of Mitigation Services FROM: Matt Butler— RES DATE: May 31, 2022 RE: DMS Comments on the Draft Mitigation Plan Cowford, Project ID #100095, DMS Contract#0007746 Comments: 1. Update contract number on cover pages. Done. 2. Check that project objectives match the Mitigation Plan. Even though the changes may be only minor differences, the baseline report is not an appropriate time to expound on or modify project objectives. Done. 3. Mitigation plan requests a fixed photo point at Kinston Highway and pictures of all culverted crossings. Add this photo to the report. Done. 4. Please add the IRT requested soil profiles at all groundwater gage locations to the report. Done. 5. There was suggestion to add woody debris to the depressional areas for habitat and it appears to be done to some extent. Suggest adding this to as-built narrative if this wood was added. Woody debris was not added to the depressional areas. 6. Add construction and as-built drawings to back of report. Done. 7. Confirm with surveyor that points 20-22 on the plat were installed and are marked. Points 20-22 have been confirmed and are marked. Electronic Comments: 1. Re-submit x-sections with full complement of monitoring stations with the monitoring station name attributed;there are 15 cross sections identified on Figure 2 of the Draft MYO report and eight cross sections submitted in digital data x section file. Done. 2. Resubmit the vegetation monitoring plots, the draft submission included only random plots. Done. 3. Resubmit the stream structures with complete list of structures installed; Figure 2 indicates cross vanes were installed and the visual assessment tables indicate that multiple grad control structures were installed as part of this mitigation project. Done. 4. Resubmit the As-built centerline or thalweg with reach brakes as indicated in Figure 2 and the Mitigation Assets and Components Table and include restoration or re-establishment to the wetland assets attribute table. Done. 5. Submit the final recorded easement boundary to ensure that most up to date recorded easement is being used during monitoring phase of the project. Done. 6. Submit visual assessment photo points with labels or numbers to enable spatial and visual reference. Done. Table of Contents 1.0 Project Summary 1 1.1 Project Location and Description 1 1.2 Project Goals and Objectives 1 1.3 Project Success Criteria 2 Stream Restoration Success Criteria 3 Headwater Stream Restoration Success Criteria 3 Wetland Hydrology Success Criteria 3 Vegetation Success Criteria 4 1.4 Project Components 4 1.5 Stream and Wetland Design/Approach 4 Streams 4 Wetlands 5 1.6 Construction and As-Built Conditions 6 1.7 Baseline Monitoring Performance (MYO) 6 Vegetation 6 Stream Geomorphology 6 Stream Hydrology 7 Wetland Hydrology 7 Headwater Valley 7 Visual Assessment 7 2.0 Methods 7 3.0 References 8 Appendix A: Background Tables Table 1. Project Mitigation Components Table 2. Project Activity and Reporting History Table 3. Project Contacts Table Table 4. Project Background Information Table Figure 1. Site Location Map Appendix B: Visual Assessment Data Figure 2. Current Conditions Plan View Table 5.Visual Stream Morphology Stability Assessment Table 6.Vegetation Condition Assessment Vegetation Plot Photos Monitoring Device Photos General Site Photos Appendix C: Vegetation Plot Data Table 7. Planted Species Summary Table 8.Vegetation Plot Mitigation Success Summary Table 9. Stem Count Total and Planted by Plot Species Appendix D: Stream Measurement and Geomorphology Data Table 10.Baseline Stream Data Summary Table 11. Cross Section Morphology Data Table Cross Section Overlay Plots Appendix E: Record Drawings Sealed Record Drawings Appendix F: Soil Profile and Hydrology Data Soil Profile Sampling Forms Summary of Groundwater Monitoring Results 1.0 Project Summary 1.1 Project Location and Description The Cowford Project (Project) is located within a rural watershed in Onslow County, North Carolina approximately three and half miles northwest of Richlands, North Carolina. The Project lies within the White Oak River Basin,North Carolina United States Geological Survey(USGS)8-digit Cataloguing Unit 03030001 and 14-digit hydrologic unit code(HUC)03030001010010,a Targeted Local Watershed(TLW) and the Division of Water Resources(NCDWR)sub-basin 03-05-02(Figure 1).The Project provides 3,337 linear feet (LF) of stream as well as re-establish 2.991 acres of wetland that will provide water quality benefit for 238 acres of drainage area. The Project area is comprised of a 17.20-acre easement involving one unnamed tributary within an entrenched channel between agricultural fields,totaling 2,988 existing LF,that drains into Cowford Branch, which eventually drains to the New River. The Project is accessible from U.S. route NC-258. Coordinates for the Project areas are approximately 34.9233,-77.5917,at the crossing in the middle of the project. 1.2 Project Goals and Objectives Through the comprehensive analysis of the Project's maximum functional uplift using the Stream Functions Pyramid Framework and conclusions based on a Site Hydric Soils Detailed Study,the Project will realize specific,attainable goals and objectives.These goals clearly address the degraded water quality and nutrient input from agricultural practices that were identified as major watershed stressors in the 2010 White Oak RBRP. The Project will address outlined RBRP Goal one and two of the TLW specific goals (listed in Section 2). The Project goals are: • Re-establish hydrology to a historical stream/wetland complex that has been impacted by historic channel realignment,channel entrenchment,field ditching,and field drain tiling; • To transport water in a stable, non-erosive manner and maintain a stable water table in riparian floodplain wetlands that will also contribute to stream baseflow; • Improve flood flow attenuation on site and downstream by allowing for overbank flows and connection to the floodplain; • Create diverse bedforms and stable channels that achieve healthy dynamic equilibrium and provide suitable in-stream habitat for aquatic organisms; • Limit sediment and nutrient inputs into stream system; • Re-establish wetland; • Restore native wetland and riparian vegetation; • Indirectly support the goals of the 2010 White Oak RBRP to improve water quality and to reduce sediment and nutrient loads; and • To support the life histories of aquatic and riparian plants and animals through stream restoration activities. Functional uplift,benefits,and improvements within the Project area,as based on the Function Based Framework are outlined in the table below. Cowford Site 1 As-Built Baseline Monitoring Report Project#100095 May 2022 Functional Benefits and Improvements Table. Level Function Goal Objective Measurement Method Convert the land-use of to transport water from the streams and their Percent Project drainage Hydrology° watersheds from cropland area converted to watershed to the channel in a Transport of water into riparian forest riparian forest(indirect 1 from the watershed to non-erosive manner and measurement) the channel maintain a stable water table in Maintain appropriate the riparian wetland hydroperiod for Muckalee Groundwater wells soil series Improve flood bank Cross sections connectivity by reducing Hydraulic bank height ratios and Stage Recorders Transport of water in increasing entrenchment 2 the channel,on the to transport water in a stable ratios Bank Height Ratio floodplain,and non-erosive manner through the sediments Maintain regular,seasonal Entrenchment Ratio flow in restored, intermittent streams Flow gauge Limit erosion rates and increase channel stability to reference reach As-built stream profile Geomorphology to create a diverse bedform and a conditions Transport of wood and Cross sections stable channel that achieves 3 sediment to create healthy dynamic equilibrium and Improve bedform diversity diverse bedforms and provides suitable habitat for life (Pool spacing,percent Visual monitoring dynamic equilibrium riffles,etc.) Vegetation plots Increase buffer width to at least 50 feet Establish native hardwood riparian buffer to provide Indirectly support the goals of canopy shade and absorb the 2010 White Oak RBRP to nutrients Physicochemical° achieve appropriate levels for Temperature and water temperature,dissolved Install in-stream structures 4 oxygen regulation; oxygen concentration,and other to created aeration zones important nutrients including but processing of organic not limited to Nitrogen and Promote sediment matter and nutrients Phosphorus through filtration,nutrient cycling, buffer/wetland planting and and organic accumulation wetland hydrologic restoration through natural wetland biogeochemical processes Biology° Improve aquatic habitat by Biodiversity and life to achieve functionality in levels installing habitat features, 5 histories of aquatic life 1-4 to support the life histories of constructing pools of histories and riparian aquatic and riparian plants and varying depths,and life animals through instream planting the riparian buffer and wetlands °These are benefits that are presumed and will not be measured by the monitoring 1.3 Project Success Criteria The success criteria for the Project will follow the 2016 USACE Wilmington District Stream and Wetland Compensatory Mitigation Update, the Cowford Site Final Mitigation Plan, and subsequent agency guidance. Specific success criteria components are presented below. Cross section and vegetation plot monitoring takes place in Years 0, 1,2, 3,5,and 7.Hydrology and visual monitoring takes place annually. Specific success criteria components are presented below. Cowford Site 2 As-Built Baseline Monitoring Report Project#100095 May 2022 Stream Restoration Success Criteria Four bankfull flow events must be documented within the seven-year monitoring period. The bankfull events must occur in separate years. Otherwise, the stream monitoring will continue until four bankfull events have been documented in separate years. There should be minor change in as-built cross sections.If changes do take place,they should be evaluated to determine if they represent a movement toward a less stable condition (for example downcutting or erosion) or are minor changes that represent an increase in stability (for example settling, vegetative changes, deposition along the banks, or decrease in width/depth ratio). Cross sections shall be classified using the Rosgen stream classification method, and all monitored cross sections should fall within the quantitative parameters defined for channels of the design stream type. Bank height ratio shall not exceed 1.2,and the entrenchment ratio shall be above 2.2 within restored riffle cross sections(for C and E streams). Digital images are used to subjectively evaluate channel aggradation or degradation,bank erosion, success of riparian vegetation, and effectiveness of erosion control measures. Longitudinal images should not indicate the absence of developing bars within the channel or an excessive increase in channel depth.Lateral images should not indicate excessive erosion or continuing degradation of the banks over time.A series of images over time should indicate successional maturation of riparian vegetation. Stream restoration reaches will be monitored to document intermittent or seasonal surface flow. This will be accomplished through direct observation and the use of hydraulic pressure transducers with data loggers. Reaches must demonstrate a minimum of 30 consecutive days of flow. One flow gauge was installed on KJ1-A and one stage recorder was installed on KJ1-C. Headwater Stream Restoration Success Criteria Continuous surface water flow must be documented every year for at least 30 days.Channel formation must be documented through consistent indicators. Monitoring years 1-4 require evidence of scour, sediment deposition, sediment sorting,multiple observed flow events,destruction of terrestrial vegetation,presence of litter and debris,wracking,vegetation matted down or bet,and leaf litter disturbed.Monitoring years 5- 7,the headwater valley reach must meet the previous requirements as well as demonstrate bed and banks, natural line impressed on the bank, shelving, water staining, change in plant community and changes in character of soil. Wetland Hydrology Success Criteria The Natural Resources Conservation Service (NRCS) has a current WETs table (1990-2019) for Onslow County upon which to base a normal rainfall amount and average growing season.The closest comparable data station was determined to be the WETS station for New River MCAF,NC. The growing season for Onslow County is 269 days long,extending from March 10 to December 4,and is based on a daily minimum temperature greater than 28 degrees Fahrenheit occurring in five of ten years. Based upon field observation across the site the NRCS mapping units show a good correlation to actual site conditions in areas of the site.Mitigation guidance for soils in the Coastal Plain suggests a hydroperiod for the Muckalee soil of 12-16 percent of the growing season. The hydrology success criterion for the Site is to restore the water table so that it will remain continuously within 12 inches of the soil surface for 12-16 percent of the growing season (approximately 33 days) at each groundwater gauge location. Due to the Cowford Site 3 As-Built Baseline Monitoring Report Project#100095 May 2022 extensive drainage efforts,it may take at least a year for the site to become completely saturated and reach the target hydroperiods. Vegetation Success Criteria Specific and measurable success criteria for plant density within the riparian buffers on the Project will follow IRT Guidance. The interim measures of vegetative success for the Project will be the survival of at least 320 planted three-year old trees per acre at the end of Year 3, 260 five-year old trees at seven feet in height at the end of Year 5, and the final vegetative success criteria will be 210 trees per acre with an average height of ten feet at the end of Year 7.Volunteer trees that are listed on the approved planting list will be counted, identified to species, and included in the yearly monitoring reports, and if established for two or more years,may be counted towards the success criteria of total planted stems.Moreover,any single species can only account for up to 50 percent of the required number of stems within any vegetation plot. Any stems more than 50 percent will be shown in the monitoring table but will not be used to demonstrate success. 1.4 Project Components The streams and wetlands provided for restoration have been significantly impacted by ditching, drain tiling, and other agricultural practices for over 50 years. Provided improvements to the Project will help address impacts specifically discussed as priorities in in the 2010 White Oak River Basin Restoration Priorities(RBRP). Through stream restoration, headwater valley (HWV) restoration, and wetland restoration, the Project presents 3,347 LF of provided stream, generating 3,538.67 Warm Stream Mitigation Units (SMU) and 2.991 acres of provided wetland,generating 2.991 Wetland Mitigation Units(WMU). Cowford Project Components Summary (Mitigation Plan) Stream Mitigation Mitigation Approach Linear Feet Ratio Warm SMU Restoration(HWV) 923 1:1 913.000* Restoration 2,424 1:1 2,424.000 Total 3,347 3,337 Non-standard Buffer Width Adjustment 201.670 Total Adjusted SMU's 3,538.67 Wetland Mitigation Mitigation Approach Area(acres) Ratio WMU Re-establishment 2.991 1:1 2.991 Total 2.991 2.991 *Headwater valley credits are calculated from valley length,not included in NSBW calculations. **Credit adjustment for Non-standard Buffer Width calculation using the Wilmington District Stream Buffer Credit Calculator issued by the USACE in January 2021. See Section 6.6 for further information 1.5 Stream and Wetland Design/Approach Streams The Project includes stream and headwater valley restoration.Stream restoration will incorporate the design of a single-thread,meandering channel,with parameters based on data taken from reference site,published empirical relationships,regional curves developed from existing project streams,and NC Regional Curves. Cowford Site 4 As-Built Baseline Monitoring Report Project#100095 May 2022 Analytical design techniques will also be a crucial element of the project and will be used to determine the design discharge and to verify the design. Based on soil type, valley slope, and drainage area headwater valley restoration was incorporated in the design. Headwater valley restoration includes the design of a vegetated diffuse flow system that will allow for the passive development of a headwater stream. The Project has been broken into the following design reaches: Reach KJ1-A(HWV) A headwater valley restoration approach is provided for this reach to address historic ditching and buffer impacts. Restoration activities includes: • Grading a headwater valley, • Installing wood structures to provide grade control and habitat, • Installing live stakes to stabilize the bed and banks, • Riparian planting. Reach KJ1-B An offline restoration approach is provided for this reach to address historic ditching and buffer impacts. Restoration activities includes: • Grading a new, single-thread channel in the existing floodplain(Priority I Restoration), • Installing log structures to provide grade control and habitat, • Establishing a riffle-pool sequence throughout the new channel, • Installing toe protection on meander bends, • Installing live stakes to stabilize the banks and provide channel shading, • Filling and grading the existing channel to create wetland habitat, • Riparian planting. Reach KJ1-C An inline, P2 restoration approach is provided for this reach to address historic ditching, channelization, and buffer impacts. Restoration activities includes: • Grading a new, single-thread channel in an excavated floodplain, • Installing rock and log structures to provide grade control and habitat, • Establishing a riffle-pool sequence throughout the new channel, • Installing toe protection on meander bends, • Installing live stakes to stabilize the banks and provide channel shading, • Filling the existing channel, • Riparian planting,and • Invasive vegetation treatment. Wetlands The Cowford Project offers a total ecosystem restoration opportunity. As such,the wetland restoration is closely tied to the stream restoration and drain tile interruption.The Project provides 2.991 WMUs through wetland re-establishment. Wetland re-establishment is only provided in areas that have been determined appropriate for wetland restoration by a licensed soil scientist due to the presence of hydric soils and potential hydrology. Re-establishment activities includes a successful restoration that raises the local groundwater elevation, allows frequent flooding, the plugging of ditches, removing all drain tiles within the easement,and creating shallow depression features in the wetland. Cowford Site 5 As-Built Baseline Monitoring Report Project#100095 May 2022 A 2D model of the provided stream restoration was run in HEC-RAS to evaluate the effectiveness of the design at increasing wetland flooding.Inundation maps from this model of the 1-and 10-year design storms demonstrate that the provided design will function in this capacity. These activities help to raise the local groundwater and have a more natural hydrologic cycle in the riparian zone. Surface roughening through shallow soil ripping improves infiltration and slow runoff through the floodplain. Surface roughening also create microtopography and shallow depressional areas, re-establishing more natural conditions and establishing habitat diversity. Historic land-use impacts will be addressed through the planting of a native hardwood wetland community. 1.6 Construction and As Built Conditions Site construction was completed on July 30th,2021,and planting was completed on March 8th,2022. The Cowford Site was overall built to design plans and guidelines,as-built stream and wetland areas were only slightly different than proposed. Wetland Depressions were designed to be 0.3-0.5 feet deep but As-Built Wetland Depressions were found to be slightly deeper than proposed ranging from 0.5-1.0 feet deep.During construction additional drain tiles were found, which were then interrupted at the easement boundary. Additionally, extra t-posts were installed around the boundary of the easement in 100-foot intervals to reduce concerns of encroachment by farming practices. The record drawings are included in Appendix E. Minor monitoring device location changes were made during as-built installation,however,the quantities remained as proposed in the Mitigation Plan. 1.7 Baseline Monitoring Performance (MY0) The Cowford Baseline Monitoring activities were performed in January and March 2022. All Baseline Monitoring data is present below and in the appendices.The Site is on track to meeting vegetation,wetland, and stream interim success criteria. Vegetation Setup and monitoring of the nine permanent vegetation plots and five random vegetation plots were completed after planting and stream construction on March 16th,2021.Vegetation data are in Appendix C, associated photos are in Appendix B,and plot locations are in Appendix B.MYO monitoring data indicates that all plots are exceeding the interim success criteria of 320 planted stems per acre.Planted stem densities ranged from 567 to 1,012 planted stems per acre with a mean of 749 planted stems per acre across all plots. A total of ten species were documented within the plots. Volunteer species were not noted at baseline monitoring but are expected to establish in upcoming years.The average stem height in the vegetation plots was 1.5 feet.Visual assessment of vegetation outside of the monitoring plots indicates that the herbaceous vegetation is becoming well established throughout the project. Stream Geomorphology Cross section setup and geomorphology data collection for MYO was collected on January 19th, 2021. Summary tables and cross section plots are in Appendix D. Overall the baseline cross sections and profile relatively match the proposed design. The as-built conditions show that shear stress and velocities have been reduced for all restoration/enhancement reaches. Visual assessment of the stream channel was performed to document signs of instability, such as eroding banks, structural instability, or excessive sedimentation. The channel is transporting sediment as designed and will continue to be monitored for aggradation and degradation. Cowford Site 6 As-Built Baseline Monitoring Report Project#100095 May 2022 Stream Hydrology One stage recorder on KJ1-C,was installed on January 19th,2022.One flow gauge,on KJ1-A,was installed on January 19th,2022. The stage recorder is in place to document bankfull events,while the flow gauge is in place to track frequency and duration of stream flow events. Stream hydrology data will be included in the Monitoring Year 1 Report in this section and in the appendices.Gauge locations can be found on Figure 2 and photos are in Appendix B. Wetland Hydrology A total of five groundwater wells with automatic recording pressure transducers were installed throughout the wetland areas on November 2nd, 2021, and April 28th, 2022. These will record water table depths at a frequency of twice per day. Preconstruction wetland hydrology data for 2020 and 2021 can be found in Appendix F.Furthermore,soil profiles have been taken at each groundwater well on November 2nd,2021, or March 27th,2022,and can be found in Appendix F. Headwater Valley Setup of cross sections 1, 2, and 3 in the headwater valley took place on January 19th, 2022. Continuous surface water flow must be documented every year for at least 30 days. Channel formation must be documented through consistent indicators. In year 1 through 4 RES will be looking for evidence that demonstrates a concentration of flow indicative of channel formation within the topographic low point of the valley or crenulation. During monitoring years 5 through 7, the stream must successfully meet the requirements for year 1 through 4 and the preponderance of evidence must demonstrate the development of stream bed and banks.The indicators are still being established and in years to follow will be documented with a visual assessment and digital images. Visual Assessment Digital images will be used to subjectively evaluate channel aggradation or degradation,bank erosion, success of riparian vegetation, and effectiveness of erosion control measures. Digital images will also capture the headwater valley,boundaries,and culverts of the site,located in Appendix B. 2.0 Methods Stream monitoring was conducted using a Topcon GTS-312 Total Station. Three-dimensional coordinates associated with cross-section data were collected in the field (NAD83 State Plane feet FIPS 3200). Morphological data were collected at 15 cross-sections. Survey data were imported into CAD, ArcGIS®, and Microsoft Excel®for data processing and analysis. The stage recorders include an automatic pressure transducer placed in PVC casing in a pool. The elevation of the bed and top of bank at each stage recorder are used to detect bankfull events. Vegetation success is being monitored at nine permanent vegetation plots and five random vegetation plots. Vegetation plot monitoring follows the CVS-EEP Level 2 Protocol for Recording Vegetation,version 4.2 (Lee et al. 2008) and includes analysis of species composition and density of planted species. Data are processed using the CVS data entry tool.In the field,the four corners of each plot were permanently marked with PVC at the origin and metal conduit at the other corners. Photos of each plot are to be taken from the origin each monitoring year.The random plots are to be collected in locations where there are no permanent vegetation plots. Random plots are collected in the form of 100 square meter belt transects with variable Cowford Site 7 As-Built Baseline Monitoring Report Project#100095 May 2022 dimensions.Tree species and height will be recorded for each planted stem and the transects will be mapped and new locations will be monitored in subsequent years. Wetland hydrology is monitored to document success in wetland restoration areas where hydrology was affected. This is accomplished with three automatic pressure transducer gauges (located in groundwater wells) that record daily groundwater levels. Three have been installed within the wetland restoration crediting area and one within the adjacent upland area to document the wetland boundary. One automatic pressure transducer is installed above ground for use as a barometric reference. Gauges are downloaded quarterly and wetland hydroperiods are calculated during the growing season. Gauge installation followed current regulatory guidance. Visual observations of primary and secondary wetland hydrology indicators are also recorded during quarterly site visits. 3.0 References Griffith, G.E., J.M.Omernik, J.A. Comstock, M.P. Schafale, W.H.McNab, D.R.Lenat, T.F.MacPherson, J.B.Glover,and V.B. Shelburne.(2002). Ecoregions of North Carolina and South Carolina,(color Poster with map, descriptive text, summary tables, and photographs): Reston, Virginia, U.S. Geological Survey(map scale 1:1,500,000). Lee Michael T.,Peet Robert K.,Roberts Steven D.,and Wentworth Thomas R.,2008. CVS-EEP Protocol for Recording Vegetation Level.Version 4.2 Peet, R.K., Wentworth, T.S., and White, P.S. (1998), A flexible, multipurpose method for recording vegetation composition and structure. Castanea 63:262-274 Resource Environmental Solutions(2021). Cowford Site Final Mitigation Plan. Schafale,M.P. 2012. Classification of the Natural Communities of North Carolina, Third Approximation. North Carolina Natural Heritage Program, Division of Parks,and Recreation,NCDENR, Raleigh, NC. USACE. (2016). Wilmington District Stream and Wetland Compensatory Mitigation Update. NC: Interagency Review Team (IRT). Cowford Site 8 As-Built Baseline Monitoring Report Project#100095 May 2022 Appendix A Background Tables Table 1. Cowford (100095) - Mitigation Assets and Components Project Segment Existing Footage or Acreage M itigation Plan Footage or Acreage Mitigation Category Restoration Level Priority Level Mitigation Ratio (X:1) Mitigation Plan Credits As -Built Footage or Acreage Comments KJ1-A* 923 913 Warm Restoration HWV 1.00000 913.000 935 Headwater valley restoration, riparian planting KJ1-B 647 852 Warm Restoration P1 1.00000 852.000 852 Channel restoration, riparian planting KJ1-C 1,428 1,572 Warm Restoration P2 1.00000 1572.000 1,574 Channel restoration, riparian planting WA 0 2.991 RR Re-establishment 1.00000 I 2.991 I I 2.969 Stream restoration, drain tile interruption, native planting *Headwater valley credits are calculated from valley length, not included in NSBW calculations. Project Credits Restoration Level Stream Riparian Wetland Non -Rip Wetland Coastal Marsh Warm Cool Cold Restoration 3337.000 Re-establishment 2.991 Rehabilitation Enhancement Enhancement I Enhancement 11 Creation Preservation NSBW Adjustment 201.670 Total 3538.670 2.991 Table 2. Project Activity and Reporting History Cowford Mitigation Site Elapsed Time Since grading complete: 9 months Elapsed Time Since planting complete: 1 month Number of reporting Years : 0 Activity or Deliverable Data Collection Complete Completion or Delivery Restoration Plan NA 26-Mar-21 Final Design — Construction Plans NA 03-May-21 Stream Construction NA 30-Jul-21 Site Planting NA 08-Mar-22 As -built (Year 0 Monitoring — baseline) Jan/March 2022 Apr-22 Year 1 Monitoring Year 2 Monitoring Year 3 Monitoring Year 4 Monitoring Year 5 Monitoring Year 6 Monitoring Year 7 Monitoring = The number of reports or data points produced excluding the baseline Table 3. Project Contacts Table Cowford Mitigation Site Designer Primary project design POC RES / 3600 Glenwood Ave., Suite 100, Raleigh, NC 27612 Benton Carroll, PE Construction Contractor Construction POC RES / 3600 Glenwood Ave., Suite 100, Raleigh, NC 27612 Andrew Dimmette Survey Contractor Survey POC RES / 3600 Glenwood Ave., Suite 100, Raleigh, NC 27612 Brian Hockett Planting Contractor Planting contractor POC Shenandoah Habitats David Coleman Monitoring Performers RES / 3600 Glenwood Ave, Suite 100, Raleigh, NC 27612 Monitoring POC Hannah Gadai Table 4. Project Background Information Project Name Cowford Project County Onslow Project Area (acres) 17.20 Project Coordinates (latitude and longitude) 34.92293, -77.5917 Planted Acreage (Acres of Woody Stems Planted) 16.35 Project Watershed Summary Information Level IV Ecoregion 63h - Carolina Flatwoods River Basin White Oak USGS Hydrologic Unit 8-digit I 3020302 USGS Hydrologic Unit 14-digit I 30203020102 DWR Sub -basin 03-05-02 Project Drainage Area (Acres and Square Miles) 238 ac (.37 sqmi) Project Drainage Area Percentage of Impervious Area <1% Reach Summary Information Parameters Reach KJ1-A Reach KJ1-B Reach KJ1-C Length of reach (linear feet) 935 852 1574 Valley confinement (Confined, moderately confined, unconfined) Unconfined Unconfined Moderately confined Drainage area (Acres and Square Miles) 115 181 238 Perennial, Intermittent, Ephemeral Intermittent Intermittent Intermittent NCDWR Water Quality Classification None None None Stream Classification (existing) G5 G5 G5 to E5 Stream Classification (proposed) N/A E5 / C5 E4 / C4 Evolutionary trend (Simon) III III III -IV FEMA classification Zone X (Minimal Risk) Zone X (Minimal Risk) Zone X (Minimal Risk) Wetland Summary Information Parameters WA Size of Wetland (acres) 2.969 Wetland Type RR Mapped Soil Series Muckalee loam Drainage Class Poorly Soil Hydric Status Yes (LESS) Source of Hydrology GW, OL, SF Restoration or enhancement method H, V o rey B1vd =Med&UrFirsgt ent CPrimarary e • © Carolina Inn 1' �cU-Haul Neighborhood Dealer A&K Tires9 r�E 0 500 1,000 Feet Figure 1 - Site Location Map Cowford Mitigation Site Onslow County, North Carolina Legend Easement TLW-03030001010010 1 White Oak River Basin - 03030001 Date: 2/17/2022 Drawn by: HRG Checked by: JRM 1 inch = 1,000 feet fires Appendix B Visual Assessment Data Invasive Species fires 0 150 300 Feet Figure 2 Current Conditions Plan View MY0 2022 Cowford Mitigation Project Onslow County, NC Date: 6/14/2022 Drawn by: HRG Lat: 35.671107 Long: -82.669235 LEGEND Easement - 17.20 Wetland Re-establishment ® Wetland EZZI Fixed Plot Random Plot Cross Stream Restoration HWV Restoration Top of * Engineered Sediment Drain Tile Outlet • Flow • Stage Recorder • Wetland © Photo Point © Existing Ag Ditch Vegetation Condition Assessment Target Community Absent Present Present Marginal Absent No Fill II Visual Stream Stability Assessment Reach JK1-A Assessed Stream Length Assessed Bank Length 925 1850 Ma'or Channel Cate o Number Stable, Performing as Metric Intended Total Number in As -built Amount of Unstable Foota a % Stable, Performing as Intended Bank Surface Scour/Bare Bank Bank lacking vegetative cover resulting simply from poor growth 0 o 100/o and/or surface scour Toe Erosion Bank toe eroding to the extent that bank failure appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 100% Bank Failure Fluvial and geotechnical - rotational, slumping, calving, or collapse Totals 0 100% 0 100% Structure Grade Control Grade control structures exhibiting maintenance of grade across the sill. 8 8 100% Bank Protection Bank erosion within the structures extent of influence does not 3 3 100% exceed 15%. (See guidance for this table in DMS monitoring guidance document) Visual Stream Stability Assessment Reach JK1-B Assessed Stream Length Assessed Bank Length 850 1700 Ma'or Channel Cate o Number Stable, Performing as Metric Intended Total Number in As -built Amount of Unstable Foota a % Stable, Performing as Intended Bank Surface Scour/Bare Bank Bank lacking vegetative cover resulting simply from poor growth 0 o 100/o and/or surface scour Toe Erosion Bank toe eroding to the extent that bank failure appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 100% Bank Failure Fluvial and geotechnical - rotational, slumping, calving, or collapse Totals 0 100% 0 100% Structure Grade Control Grade control structures exhibiting maintenance of grade across the sill. 7 7 100% Bank Protection Bank erosion within the structures extent of influence does not 16 16 100% exceed 15%. (See guidance for this table in DMS monitoring guidance document) Visual Stream Stability Assessment Reach JK1-C Assessed Stream Length Assessed Bank Length 1572 3144 Ma'or Channel Cate o Number Stable, Performing as Metric Intended Total Number in As -built Amount of Unstable Foota a % Stable, Performing as Intended Bank Surface Scour/Bare Bank Bank lacking vegetative cover resulting simply from poor growth 0 o 100/o and/or surface scour Toe Erosion Bank toe eroding to the extent that bank failure appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 100% Bank Failure Fluvial and geotechnical - rotational, slumping, calving, or collapse Totals 0 100% 0 100% Structure Grade Control Grade control structures exhibiting maintenance of grade across the sill. 17 17 100% Bank Protection Bank erosion within the structures extent of influence does not 28 28 100% exceed 15%. (See guidance for this table in DMS monitoring guidance document) Table 6 Planted Acreage' Vegetation Condition Assessment 16.4 Vegetation Category Definitions Mapping Threshold CCPV Depiction Number of Polygons Combined Acreage % of Planted Acreage 1. Bare Areas Very limited cover of both woody and herbaceous material. 0.1 acres Red Simple Hatch 0 0.00 0.0% 2. Low Stem Density Areas Woody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria. 0.1 acres Orange Simple Simple Hatch 0.00 0.0% Total 0.0% 3. Areas of Poor Growth Rates or Vigor Areas with woody stems of a size class that are obviously small given the monitoring year. 0.25 acres Orange Simple Simple Hatch 0.00 0.0% Cumulative Total 0.0% Easement Acreaae2 17.2 Vegetation Category Definitions Mapping PP g 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 Yellow Crosshatch 0 0.00 0.0 5. Easement Encroachment Areas3 Areas or points (if too small to render as polygons at map scale). none Red Simple Hatch 0 0.00 0.0 1 = Enter the planted acreage within the easement. This number is calculated as the easement acreage minus any existing mature tree stands that were not subject to supplemental planting of the understory, the channel acreage, crossings or any other elements not directly planted as part of the project effort. 2 = The acreage within the easement boundaries. 3 = Encroachment may occur within or outside of planted areas and will therefore be calculated against the overall easement acreage. In the event a polygon is cataloged into items 1, 2 or 3 in the table and is the result of encroachment, the associated acreage should be tallied in the relevant item (i.e., item 1,2 or 3) as well as a parallel tally in item 5. 4 = Invasives may occur in or out of planted areas, but still within the easement and will therefore be calculated against the overall easement acreage. Invasives of concern/interest are listed below. The list of high concern spcies are those with the potential to directly outcompete native, young, woody stems in the short-term (e.g. monitoring period or shortly thereafter) or affect the community structure for existing, more established tree/shrub stands over timeframes that are slightly longer (e.g. 1-2 decades). The low/moderate concern group are those species that generally do not have this capacity over the timeframes discussed and therefore are not expected to be mapped with regularity, but can be mapped, if in the judgement of the observer their coverage, density or distribution is suppressing the viability, density, or growth of planted woody stems. Decisions as to whether remediation will be needed are based on the integration of risk factors by EEP such as species present, their coverage, distribution relative to native biomass, and the practicality of treatment. For example, even modest amounts of Kudzu or Japanese Knotweed early in the projects history will warrant control, but potentially large coverages of Microstegium in the herb layer will not Iikley trigger control because of the limited capacities to impact tree/shrub layers within the timeframes discussed and the potential impacts of treating extensive amounts of ground cover. Those species with the "watch list" designator in gray shade are of interest as well, but have yet to be observed across the state with any frequency. Those in red italics are of particular interest given their extreme risk/threat level for mapping as points where isolated specimens are found, particularly ealry in a projects monitoring history. However, areas of discreet, dense patches will of course be mapped as polygons. The symbology scheme below was one that was found to be helpful for symbolzing invasives polygons, particulalry for situations where the conditon for an area is somewhere between isolated specimens and dense, discreet patches. In any case, the point or polygon/area feature can be symbolized to describe things like high or low concern and species can be listed as a map inset, in legend items if the number of species are limited or in the narrative section of the executive summary. Cowford MVO Vegetation Monitoring Plot Photos Vegetation Plot 1 (3/16/2022) Vegetation Plot 3 (3/16/2022) Vegetation Plot 2 (3/16/2022) Vegetation Plot 4 (3/16/2022) Vegetation Plot 5 (3/16/2022) Vegetation Plot 7 (3/16/2022) Vegetation Plot 6 (3/16/2022) Vegetation Plot 8 (3/16/2022) Vegetation Plot 9 (3/16/2022) Cowford MVO Random Vegetation Monitoring Plot Photo Random Vegetation Plot 1 (3/16/2022) C LE - Arr � .�..✓h x � � �� k Random Vegetation Plot 3 (3/16/2022) Random Vegetation Plot 2 (3/16/2022) Random Vegetation Plot 4 (3/16/2022) Random Vegetation Plot 5 (3/16/2022) Cowford Monitoring Device Photos MY0 2022 Stage Recorder KJ1-C (1/19/2022) Wetland Gauge 1 (3/8/2022) Flow Gauge KJ1-A (1/19/2022) Wetland Gauge 2 (3/8/2022) Wetland Gauge 3 (3/8/2022) Wetland Gauge 5 (3/8/2022) Wetland Gauge 4 (3/8/2022) Cowford General Site Photos MY0 2022 Culvert at the top of KJl-C (3/8/2022) Culvert at edge of Wetland (4/28/2022) Culvert at the bottom of KJ1-B (3/8/2022) Culvert at Kinston Highway (4/28/2022) ESP & Treatment Pool (3/16/2022) Headwater Valley (3/16/2022) Haybale brush toe in BJl-B (3/16/2022) Headwater Valley (3/16/2022) Headwater Valley (4/28/2022) Easement Marker (3/8/2022) Appendix C Vegetation Plot Data Appendix C. Vegetation Plot Data Table 7. Planted Species Summary Bare Root Planting Tree Species Common Name Scientific Name Mit Plan % As -Built % Total Stems Planted River Birch Betula nigra 15 15 2,000 Buttonbush Cephalanthus occidentalis 15 15 2,000 Bald Cypress Taxodium distichum 10 10 1,300 Water Oak Quercus nigra 10 10 1,300 Willow Oak Quercus phellos 10 10 1,300 Overcup Oak Quercus lyrata 10 10 1,300 Swamp Tupelo Nyssa biflora 10 10 1,300 American sycamore Platanus occidentalis 10 10 1,300 Southern red oak Quercus falcata 5 5 700 Green ash Fraxinus pennsylvanica 5 5 700 Total 13,200 Planted Area 16.35 As -built Planted Stems/Acre 807 Table 8. Vegetation Plot Mitigation Success Summary Wetland/Stream Vegetation Totals (per acre) Plot # Planted Stems/Acre Volunteer Stems/Acre Total Stems/Acre Success Criteria Met? Average Planted Stem Height (ft) 1 971 0 971 Yes 1.5 2 971 0 971 Yes 1.4 3 769 0 769 Yes 1.6 4 567 0 567 Yes 1.7 5 931 0 931 Yes 1.3 6 688 0 688 Yes 1.5 7 607 0 607 Yes 1.7 8 850 0 850 Yes 1.4 9 728 0 728 Yes 1.7 R1 1012 0 1012 Yes 1.4 R2 567 0 567 Yes 1.5 R3 607 0 607 Yes 1.4 R4 647 0 647 Yes 1.4 R5 567 0 567 Yes 1.8 Project Avg 749 0 749 Yes 1.5 Appendix C. Vegetation Plot Data Table 9. Stem Count Total and Planted by Plot Species EEP Project Code 100095. Project Name: Cowford Current Plot Data (MYO 2021) Scientific Name Common Name Species Type 100043-01-0001 100043-01-0002 100043-01-0003 100043-01-0004 100043-01-0005 100043-01-0006 100043-01-0007 100043-01-0008 100043-01-0009 PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T Betula nigra river birch Tree 10 10 10 3 3 3 8 8 8 4 4 4 5 5 5 1 1 1 Cephalanthus occidentalis common buttonbush Shrub 1 1 1 5 5 5 1 1 1 2 2 2 1 1 1 Fraxinus pennsylvanica green ash Tree 1 1 1 2 2 2 4 4 4 1 1 1 Nyssa biflora swamp tupelo Tree 4 4 4 3 3 3 2 2 2 6 6 6 4 4 4 7 7 7 1 1 1 4 4 4 Platanus occidentalis American sycamore Tree 1 1 1 3 3 3 2 2 2 3 3 3 6 6 6 2 2 2 5 5 5 1 1 1 2 2 2 Quercus falcata southern red oak Tree 2 2 2 1 1 1 1 1 1 4 4 4 1 1 1 1 1 1 1 1 1 Quercus lyrata overcup oak Tree 3 3 3 3 3 3 2 2 2 1 1 1 Quercus nigra water oak Tree 4 4 4 1 1 1 1 1 1 1 1 1 2 2 2 1 1 1 Quercus phellos willow oak Tree 1 1 1 4 4 4 5 5 5 2 2 2 4 4 4 1 1 1 1 1 1 3 3 3 1 1 1 Taxodium distichum bald cypress Tree 5 5 5 1 1 1 2 2 2 4 4 4 6 6 6 Stem count size (ares) size (ACRES) Species count Stems per ACRE 24 24 24 24 24 24 19 19 19 14 14 14 23 23 23 17 17 17 15 15 15 21 21 21 18 18 18 1 1 1 1 1 1 1 1 1 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 8 8 8 7 7 7 6 6 6 6 6 6 5 5 5 8 8 8 5 5 5 9 9 9 9 9 9 971 971 971 971 971 971 769 769 769 567 567 567 931 931 931 688 688 688 607 607 607 850 850 850 728 728 728 Current Plot Data (MYO 2021) Annual Means Scientific Name Common Name Species Type 100043-01-R1 100043-01-R2 100043-01-R3 100043-01-R4 100043-01-R5 MYO (2021) PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T Betula nigra river birch Tree 7 7 7 3 3 3 1 1 1 3 3 3 2 2 2 47 47 47 Cephalanthus occidentalis common buttonbush Shrub 1 1 1 3 3 3 3 3 3 2 2 2 19 19 19 Fraxinus pennsylvanica green ash Tree 2 2 2 2 2 2 1 1 1 13 13 13 Nyssa biflora swamp tupelo Tree 4 4 4 1 1 1 5 5 5 41 41 41 Platanus occidentalis American sycamore Tree 2 2 2 1 1 1 4 4 4 32 32 32 Quercus falcata southern red oak Tree 2 2 2 4 4 4 1 1 1 1 1 1 19 19 19 Quercus lyrata overcup oak Tree 3 3 3 1 1 1 1 1 1 14 14 14 Quercus nigra water oak Tree 1 1 1 1 1 1 1 1 1 13 13 13 Quercus phellos willow oak Tree 2 2 2 1 1 1 1 1 1 6 6 6 1 1 1 33 33 33 Taxodium distichum bald cypress Tree 1 1 1 2 2 2 7 7 7 28 28 28 Stem count size (ares) size (ACRES) Species count Stems per ACRE 25 25 25 15 15 15 15 15 15 15 15 15 14 14 14 259 259 259 1 1 1 1 1 14 0.02 0.02 0.02 0.02 0.02 0.35 10 10 10 6 6 6 7 7 7 7 7 7 6 6 6 10 10 10 1012 1012 1012 607 607 607 607 607 607 607 607 607 567 567 567 749 749 749 Appendix D Stream Measurement and Geomorphology Data Table 8. Baseline Stream Data Summary Cowford Mitigation Site - Reach KJ1-B Parameter Gauge2 Regional Curve Pre -Existing Condition Reference Reach(es) Data Design Monitoring Baseline Dimension and Substrate - Riffle Only LL UL Eq. Min Mean Med Max SD' n Min Mean Med Max SDb n Min Med Max Min Mean Med Max SDb n Bankfull Width (ft) --- --- --- --- --- 4.9 --- --- 1 --- --- --- --- --- --- --- 8.0 --- 9.5 10.4 10.4 11.3 1.3 2 Floodprone Width (ft) --- --- 7.3 --- --- 1 --- --- --- --- --- --- --- >50 --- 48.7 49.0 49.0 49.3 0.4 2 Bankfull Mean Depth (ft) --- --- --- --- --- 0.9 --- --- 1 --- --- --- --- --- --- --- 0.6 --- 0.6 0.7 0.7 0.8 0.1 2 1Bankfull Max Depth (ft) --- --- 1.3 --- --- 1 --- --- --- --- --- --- --- 1.0 --- 1.0 1.1 1.1 1.2 0.1 2 Bankfull Cross Sectional Area (ft2) --- --- --- --- --- 4.5 --- --- 1 --- --- --- --- --- --- --- 5.0 --- 6.4 6.9 6.9 7.3 0.6 2 Width/Depth Ratio --- --- 5.3 --- --- 1 --- --- --- --- --- --- --- 12.8 --- 17.2 17.3 17.3 17.4 0.1 2 Entrenchment Ratio --- --- 1.5 --- --- 1 --- --- --- --- --- --- --- >2.2 --- 4.3 4.8 4.8 5.2 0.6 2 'Bank Height Ratio --- --- 3.9 --- --- 1 --- --- --- --- --- --- --- 1.0 --- 1.0 1.0 1.0 1.0 0.0 2 Profile Riffle Length (ft) --- --- --- --- --- --- --- --- --- -- 5 --- 27 --- --- --- --- --- --- Riffle Slope (ft/ft) --- --- --- --- --- --- --- --- -- --- --- --- --- --- --- --- --- --- --- --- --- Pool Length (ft) --- --- --- --- --- --- --- --- --- -- 9 --- 30 --- --- --- --- --- --- Pool Max depth (ft) --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- -- --- Pool Spacing (ft) --- --- --- --- --- --- --- --- --- --- --- --- 20 --- 53 --- --- --- --- --- --- Pattern Channel Beltwidth (ft) --- --- --- --- --- --- --- --- --- --- --- --- 4 --- 27 4 --- --- 27 --- --- Radius of Curvature (ft) --- --- --- --- --- --- --- --- --- --- --- --- 10 --- 14 10 --- --- 14 --- --- Rc:Bankfull width (ft/ft) --- --- --- --- --- --- --- --- --- --- --- --- 1.3 --- 1.8 1.3 --- --- 1.8 --- --- Meander Wavelength (ft) --- --- --- --- --- --- --- --- --- --- --- --- 33 --- 61 33 --- --- 61 --- --- Meander Width Ratio --- --- --- --- --- --- --- --- --- --- --- --- 4.1 --- 7.6 4.1 --- --- 7.6 --- --- Transport parameters Reach Shear Stress (competency) Ib/f2 --- --- --- --- Max part size (mm) mobilized at bankfull --- -- Stream Power (transport capacity) W/m2 --- --- -- Additional Reach Parameters Rosgen Classification G5 --- E5/C5 E4 Bankfull Velocity (fps) --- --- --- --- --- -- Bankfull Discharge (cfs) --- --- --- --- --- -- Valley length (ft) 680 --- 602 601 Channel Thalweg length (ft) 688 --- 852 850 Sinuosity (ft) 1.01 --- 1.42 1.41 Water Surface Slope (Channel) (ft/ft) --- --- -- Channel slope (ft/ft) 0.007 --- 0.002 0.002 3Bankfull Floodplain Area (acres) --- --- -- 4% of Reach with Eroding Banks --- --- Channel Stability or Habitat Metric --- --- Biological or Other --- --- Shaded cells indicate that these will typically not be filled in. 1 = The distributions for these parameters can include information from both the cross-section measurements and the longitudinal profile. 2 = For projects with a proximal USGS gauge in -line with the project reach (added bankfull verification - rare). 3. Utilizing XS measurement data produce an estimate of the bankfull floodplain area in acres, which should be the area from the top of bank to the toe of the terrace riser/slope. 4 =Proportion of reach exhibiting banks that are eroding based on the visual survey for comparison to monitoring data; 5. Ofvalue/needed only if the n exceeds 3 Table 8. Baseline Stream Data Summary Cowford Mitigation Site - Reach KJ1-C Parameter Gauge2 Regional Curve Pre -Existing Condition Reference Reach(es) Data Design Monitoring Baseline Dimension and Substrate - Riffle Only LL UL Eq. Min Mean Med Max SD' n Min Mean Med Max SDb n Min Med Max Min Mean Med Max SDb n Bankfull Width (ft) --- --- --- 6.6 6.7 6.7 6.7 --- 2 --- --- --- --- --- --- --- 8.0 --- 8.6 11.0 9.7 16.1 3.4 4 Floodprone Width (ft) 12.5 13.4 13.4 14.3 --- 2 --- --- --- --- --- --- --- >50 --- 46.00 47.8 47.9 49.4 1.4 4 Bankfull Mean Depth (ft) --- --- --- 1.0 1.1 1.1 1.2 --- 2 --- --- --- --- --- --- --- 0.6 --- 0.5 0.5 0.5 0.5 0.0 4 1Bankfull Max Depth (ft) 1.5 1.6 1.6 1.7 --- 2 --- --- --- --- --- --- --- 1.0 --- 0.8 1 1.1 1.1 0.1 4 Bankfull Cross Sectional Area (ft2) --- --- --- 6.5 7.4 7.4 8.2 --- 2 --- --- --- --- --- --- --- 5.0 --- 4.5 5.6 5.1 7.8 1.5 4 Width/Depth Ratio 5.4 6.1 6.1 6.8 --- 2 --- --- --- --- --- --- --- 12.8 --- 16.4 21.7 18.7 33.1 7.7 4 Entrenchment Ratio 1.9 2.0 2.0 2.1 --- 2 --- --- --- --- --- --- --- >2.2 --- 3.1 4.6 4.9 5.3 1.0 4 'Bank Height Ratio 1.8 3.0 3.0 4.2 --- 2 --- --- --- --- --- --- --- 1.0 --- 1.00 1.0 1.0 1.0 0.0 4 Profile Riffle Length (ft) --- --- --- --- --- --- --- --- --- -- 8 --- 32 --- --- --- --- --- --- Riffle Slope (ft/ft) --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- Pool Length (ft) --- --- --- --- --- --- --- --- --- --- --- --- 9 --- 30 --- --- --- --- --- --- Pool Max depth (ft) --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- -- --- Pool Spacing (ft) --- --- --- --- --- --- --- --- --- --- --- --- 20 --- 49 --- --- --- --- --- --- Pattern Channel Beltwidth (ft) --- --- --- --- --- --- --- --- --- --- --- --- 7 --- 23 7 --- --- 23 --- --- Radius of Curvature (ft) --- --- --- --- --- --- --- --- --- --- --- --- 11 --- 24 11 --- --- 24 --- --- Rc:Bankfull width (ft/ft) --- --- --- --- --- --- --- --- --- --- --- --- 1.4 --- 3 1.4 --- --- 3 --- --- Meander Wavelength (ft) --- --- --- --- --- --- --- --- --- --- --- --- 38 --- 77 38 --- --- 77 --- --- Meander Width Ratio --- --- --- --- --- --- --- --- --- --- --- --- 4.8 --- 9.6 4.8 --- --- 9.6 --- --- Transport parameters Reach Shear Stress (competency) Ib/f2 --- --- --- --- Max part size (mm) mobilized at bankfull --- -- Stream Power (transport capacity) W/m2 --- --- -- Additional Reach Parameters Rosgen Classification G5 to E5 --- E4/C4 E4/C4 Bankfull Velocity (fps) --- --- --- --- --- -- Bankfull Discharge (cfs) --- --- --- --- --- -- Valley length (ft) 1395 --- 1392 1392 Channel Thalweg length (ft) 1429 --- 1572 1572 Sinuosity (ft) 1.02 --- 1.13 1.13 Water Surface Slope (Channel) (ft/ft) --- --- -- Channel slope (ft/ft) 0.007 --- 0.003 0.003 3Bankfull Floodplain Area (acres) --- --- -- 4% of Reach with Eroding Banks --- --- Channel Stability or Habitat Metric --- --- Biological or Other --- --- Shaded cells indicate that these will typically not be filled in. 1 = The distributions for these parameters can include information from both the cross-section measurements and the longitudinal profile. 2 = For projects with a proximal USGS gauge in -line with the project reach (added bankfull verification - rare). 3. Utilizing XS measurement data produce an estimate of the bankfull floodplain area in acres, which should be the area from the top of bank to the toe of the terrace riser/slope. 4 =Proportion of reach exhibiting banks that are eroding based on the visual survey for comparison to monitoring data; 5. Ofvalue/needed only if the n exceeds 3 Appendix D. Table 9 - Monitoring Data - Dimensional Morphology Summary (Dimensional Parameters - Cross Sections) Cowford Cross Section 1 (Pool) Cross Section 2 (Riffle) Cross Section 3 (Riffle) Cross Section 4 (Pool) Cross Section 5 (Riffle) Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation (ft) - Based on AB-XSA' (Headway Valley Restoration) No Morphological Parameters were determined for HWV Reach A (Headway Valley Restoration) No Morphological Parameters were determined for HWV Reach A (Headway Valley Restoration) No Morphological Parameters were determined for HWV Reach A 65.6 65.8 Bankfull Width (ft)1 11.0 11.3 Floodprone Width (ft)1 - 49 Bankfull Max Depth (ft)2 1.5 1.2 Low Bank Elevation (ft) 65.6 65.8 Bankfull Cross Sectional Area (ft2)2 8.6 7.3 Bankfull Entrenchment Ratio' - 4.3 Bankfull Bank Height Ratio' - 1.0 Cross Section 6 (Riffle) Cross Section 7 (Pool) Cross Section 8 (Pool) Cross Section 9 (Riffle) Cross Section 10 (Riffle) Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation (ft) - Based on AB-XSA' 65.1 65.0 61.0 60.8 57.9 Bankfull Width (ft)' 9.5 8.2 11.1 9.5 9.9 Floodprone Width (ft)1 49.3 - - 48.1 48 Bankfull Max Depth (ft)2 1.0 1.5 1.6 1.1 1.0 Low Bank Elevation (ft) 65.1 65.0 61.0 60.8 57.9 Bankfull Cross Sectional Area (ft2)2 5.3 6.4 6.6 4.8 5.3 Bankfull Entrenchment Ratio' 5.2 - - 5.0 4.8 Bankfull Bank Height Ratio' 1.0 - - 1.0 1.0 Cross Section 11 (Pool) Cross Section 12 (Riffle) Cross Section 13 (Pool) Cross Section 14 (Riffle) Cross Section 15 (Pool) Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Base MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation (ft) - Based on AB-XSA' 57.9 54.6 54.7 48.0 47.6 Bankfull Width (ft)1 11.8 8.6 10.3 16.1 9.1 Floodprone Width (ft)1 - 46.0 - 49.4 - Bankfull Max Depth (ft)2 1.6 0.8 1.9 1.1 3.4 Low Bank Elevation (ft) 57.9 54.6 54.7 48.0 47.6 Bankfull Cross Sectional Area (ft2)2 8.4 4.5 9.3 7.8 12.3 Bankfull Entrenchment Ratio' - 5.3 - 3.1 - Bankfull Bank Height Ratio' - 1.0 - 1.0 - 1 - Uses the as -built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2 - Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation r Wrk�y� '� ?k • s y 3 Upstream Downstream Cowford -Reach KJ1-A-Cross Section 1 -Pool -HWV Restoration 72 71 70 166036912151821242730333639424548 Distance(ft) MVO 2022 3X Vertical Exaggeration Cross Section 1 (Pool) MY0 I MYl MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA' Bankfull Width(ft)' Floodprone Width(ft)' Bankfull Max Depth(ft)Z (Headway Valley Restoration) Low Bank Elevation(ft) No Morphological Parameters were determined for HWV Reach A Bankfull Cross Sectional Area(ftt)2 Bankfull Entrenchment Ratio' Bankfull Bank Height Ratio' 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation dd 3 _ .` .i. 14, w� /B, Upstream Downstream Cowford-Reach KJ1-A-Cross Section 2-Riffle -HWV Restoration 72 71 70 2 69 w 68 67 66 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MY0 2022 3X Vertical Exaggeration Cross Section 2(Riffle) MY0 I MY1 I MY2 I MY3 I MY5 I MY7 I MY+ Bankfull Elevation(ft)-Based on AB-XSA1 Bankfull Width(f01 Floodprone Width(ft)1 Bankfull Max Depth(ft)2 (Headway Valley Restoration) Low Bank Elevation(ft) No Morphological Parameters were determined for HWV Reach A Bankfull Cross Sectional Area(ft2)2 Bankfull Entrenchment Ratio' Bankfull Bank Height Ratio' 1 -Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation Z Yu':Cti P ate_ • • • Upstream Downstream Cowford -Reach KJ1-A-Cross Section 3-Riffle-HWV Restoration 70 69 68 ° 67 m 66 65 64 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MY0 2022 3X Vertical Exaggeration Cross Section 3(Riffle) MYO I MY1 I MY2 I MY3 I MY5 I MY7 I MY+ Bankfull Elevation(ft)-Based on AB-XSA' Bankfull Width(ft)' Floodprone Width(ft)' Bankfull Max Depth(ft)2 (Headway Valley Restoration) Low Bank Elevation(ft) No Morphological Parameters were determined for HWV Reach A Bankfull Cross Sectional Area(ft2)2 Bankfull Entrenchment Ratio' Bankfull Bank Height Ratio' 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation ,, ,k, ✓ .''° rd 'y `'u`7 ' '* 1 -/',t'01,.';.,11,1,4%'4'.:' 'i" x O_ s } r 4 _., i a+." ` •*„. .-''."',-!',',-",'.;''":.S';•J-_:'7,,:'',':,.1'1--v..4'..-:;,,'-, �k SLf i t z * 'k; 4,. J', 6 < n t. . yr , `r t T Upstream Downstream Cowford-Reach KJ1-B -Cross Section 4-Pool -Restoration 68 67 66 c 0 65 fi w 64 63 62 1 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MYO 2022 — — —Approx.Bankfull Low Bank Elevation 3X Vertical Exaggeration Cross Section 4(Pool) IIIII MYO MYl MY2 MY3 MY5 MY7 MY Bankfull Elevation(ft)-Based on AB-XSA' 65.63 Bankfull Width(ft)t 11.0 Floodprone Width(ft)t - Bankfull Max Depth(ft)2 1.5 Low Bank Elevation(ft) 65.63 Bankfull Cross Sectional Area(ft2)2 8-6 Bankfull Entrenchment Ratio' - Bankfull Bank Height Ratio' - 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years Bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years Bankfull elevation ±:[' .,l - ti 4 +„"" s1,, ' -'1.'''''-'1*,, .: F .rf. 'aa--3 C s ,,e-,0.1,kp. F e _ '.+,�.' 1 m - iy a '? s a art •? y..„ wu +, " - ? : t .,-� ham, i tiM '7F c_ 1 i,2a°. '. / 1,. 4 .` a11 ",ter �,.i�f. i k�..� , H ,0-4, 9 ��! ,wy 'fib 1,n Upstream Downstream 69 Cowford -Reach KJ1-B -Cross Section 5-Riffle-Restoration 68 67 x 0 66 w 65 64 63 0 3 6 9 12 15 18 21 24 2III1TI1TI Distance(ft) MY0 2022 — — —Approx.Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exaggeration Cross Section 5(Riffle) MY0 MYI MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSAI 65.76 Bankfull Width(ft)1 11.3 Floodprone Width(ft)1 49 Bankfull Max Depth(ft)2 1.2 Low Bank Elevation(ft) 65.76 Bankfull Cross Sectional Area(ft2)2 7-3 Bankfull Entrenchment Ratios 4-3 Bankfull Bank Height Ratios 1-0 1 -Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation M q $ • � X . mint:.'he• - � Sx- • Upstream Downstream Cowford-Reach KJ1-B -Cross Section 6-Riffle-Restoration 68 67 66 TTTITTTTIIITIIIT Distance(ft) MVO 2022 — — —Approx.Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exaggeration Cross Section 6(Riffle) MY0 MYl MY2 MY3 MY5 MY7 MY— Bankfull Elevation(ft)-Based on AB-XSAI 65.06 Bankfull Width(ft)1 9.5 Floodprone Width(ft)1 49.3 Bankfull Max Depth(ft)2 1.0 Low Bank Elevation(ft) 65.06 Bankfull Cross Sectional Area(ft2)2 5.3 Bankfull Entrenchment Ratio' 5.2 Bankfull Bank Height Ratio' 1.0 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation i ern „ .r w,* r 4 , ad ase*by y ,ems sex'" 'sac `gyp {, ^ v'^ , , l' ; f 3 t f x�.£ 5 fi :d xt .� f rA, l -,1. am{�,w Upstream Downstream Cowford-Reach KJ1-B -Cross Section 7-Pool -Restoration 68 67 66 ' :T :9 : TTET : : : Distance(ft) MYO 2022 — — —Approx.Bankfull Low Bank Elevation 3X Vertical Exaggeration Cross Section 7(Pool) MYO MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA' 64.99 Bankfull Width(ft)' 8-2 Floodprone Width(ft)' - Bankfull Max Depth(ft)2 1.5 Low Bank Elevation(ft) 64.99 Bankfull Cross Sectional Area(ft2)2 6.4 Bankfull Entrenchment Ratio' - Bankfull Bank Height Ratio' - 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation _ s+rwK•a +,.,..a6._.u•--rJ =kt - .. • xikA ra �g V 4 � 0f A6,o A £ sx at + Upstream Downstream Cowford-Reach KJ1-C -Cross Section 8-Pool - Restoration 65 64 63 ° 62 60 59 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MYO 2022 — — —Approx.Bankfull -----Low Bank Elevation 3X Vertical Exaggeration Cross Section 8(Pool) MYO MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA' 60.97 Bankfull Width(ft)' 11.1 Floodprone Width(ft)1 - Bankfull Max Depth(ft)2 1.6 Low Bank Elevation(ft) 60.97 Bankfull Cross Sectional Area(ft2)2 6.6 Bankfull Entrenchment Ratio' - Bankfull Bank Height Ratio' - 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation ry 3 �y � Yu� y + `'A,',$_ �i a , •-tt.^5`eir;:1,t17,,,,,''''./.**;,,,4`:i:-.--,- "I.• ' ' `-' _ Q �L 'Xr 3�. Upstream Downstream Cowford -Reach KJ1-C-Cross Section 9-Riffle-Restoration 64 63 62 i c ° 61 m u' 60 59 58 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) ii.MYO 2022 — — —Approx.Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exaggeration Cross Section 9(Riffle) MY0 MY MY2 MY3 MY5 MY7 MY+Ili Bankfull Elevation(ft)-Based on AB-XSA' 60.82 Bankfull Width(ft)' 9.5 Floodprone Width(ft)' 48.1 Bankfull Max Depth(ft)2 1.1 Low Bank Elevation(ft) 60.82 Bankfull Cross Sectional Area(ft2)2 4.8 Bankfull Entrenchment Ratio' 5.0 Bankfull Bank Height Ratio' 1.0 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation r } #1-1. fF . ? .100$0.44 .�gaa3:^i a - x r ', It' f.L.3 x s✓"`-`.,� - i.+i[''S+W €s3.'�r,. 3 ,•.,r''1 �0 ? qqA' dam. 1. :� Z. f. t„.Ei-A P,: 3740,x, 4F 7 . i Y, aa a,r Upstream Downstream Cowford-Reach KJ1-C -Cross Section 10-Riffle -Restoration 61 60 59 c � m 57 56 55 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MY0 2022 — — —Approx.Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exaggeration Cross Section 10 (Riffle) MYO MYI MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA1 57-93 Bankfull Width(ft)' 9-9 Floodprone Width(ft)' 48 Bankfull Max Depth(ft)2 1.0 Low Bank Elevation(ft) 57.93 Bankfull Cross Sectional Area(ft2)2 5-3 Bankfull Entrenchment Ratio' 4.8 Bankfull Bank Height Ratio' 1.0 1 -Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation , e4 � t'" 14-14 Upstream Downstream Cowford-Reach KJ1-C -Cross Section 11 -Pool -Restoration 61 60 59 m t" 57 56 55 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MVO 2022 — — -Approx.Bankfull Low Bank Elevation 3X Vertical Exaggeration Cross Section 11 (Pool) MY0 MY1 MY2 MY3 MY5 MY7 MY Bankfull Elevation(ft)-Based on AB-XSA1 57.92 Bankfull Width(ft)' 11.8 Floodprone Width(ft)' - Bankfull Max Depth(ft)2 1.6 Low Bank Elevation(ft) 57.92 Bankfull Cross Sectional Area(ft2)2 8.4 Bankfull Entrenchment Ratio' - Bankfull Bank Height Ratio' - 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation W � ab .4-414 z �'.; Upstream Downstream Cowford -Reach KJ1-C-Cross Section 12-Riffle-Restoration 58 57 56 ° 55 m t" 54 53 52 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MYO 2022 — — —Approx.Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exaggeration Cross Section 12 (Riffle) MYO MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA1 54.58 Bankfull Width(ft)' 8.6 Floodprone Width(ft)' 46.0 Bankfull Max Depth(ft)2 0.8 Low Bank Elevation(ft) 54.58 Bankfull Cross Sectional Area(ft2)2 4.5 Bankfull Entrenchment Ratio' 5.3 Bankfull Bank Height Ratio' 1.0 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation .`fi rtti'v, ;ANC���`� �'� « al,� �, � • • s; 7 Upstream Downstream Cowford-Reach KJ1-C-Cross Section 13 -Pool -Restoration 58 57 56 ° 55 m w 54 53 52 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MVO 2022 — — —Approx.Bankfull Low Bank Elevation 3X Vertical Exaggeration Cross Section 13(Pool) MY0 MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA' 54.70 Bankfull Width(ft)' 10.3 Floodprone Width(ft)' - Bank ull Max Depth(ft)2 1.9 Low Bank Elevation(ft) 54.70 Bankfull Cross Sectional Area(ft2)2 9.3 Bankfull Entrenchment Ratio' - Bankfull Bank Height Ratio' - 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation s • • .;.. P / y % Upstream Downstream Cowford-Reach KJ1-C -Cross Section 14-Riffle-Restoration 51 50 49 I : 1 7 46 45 10 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MYO 2022 — — —Approx.Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exaggeration Cmss Section 14(Riffle) MYO MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA' 48.03 Bankfull Width(ft)' 16.1 Floodprone Width(ft)' 49.4 Bankfull Max Depth(ft)2 1.1 Low Bank Elevation(ft) 48.03 Bankfull Cross Sectional Area(ft2)2 7.8 Bankfull Entrenchment Ratio' 3.1 Bankfull Bank Height Ratio' 1.0 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years Bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years Bankfull elevation i ( 1� 4 A i -fA*Ti.•rfsr-rt q n`�.'+3;',_ ' e 4 Upstream Downstream Cowford-Reach KJ1-C-Cross Section 15-Pool -Restoration 50 49 48 c o 47 m " 46 45 44 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MVO 2022 — — —Approx.Bankfull Low Bank Elevation 3X Vertical Exaggeration Cross Section 15(Pool) MY0 MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA' 47.59 Bankfull Width(ft)' 9-1 Floodprone Width(ft)' - Bankfull Max Depth(ft)2 3-4 Low Bank Elevation(ft) 47.59 Bankfull Cross Sectional Area(ft2)2 12.3 Bankfull Entrenchment Ratio' - Bankfull Bank Height Ratio' - 1-Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2-Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation Appendix E Record Drawings FILE NAME: R:\Rescad\Projects\100900-Cowford\ABRL\100900_AB_COVER.dwg SAVED BY: Bhockett Corner Iiargetts C•ossi•rrods jarn-F,ntown -54 Haan B•r.a h Huf marrtown 2SA 6regory Forks PROJECT LOCATION Ric li lands Brocks C,o mfc rt Gym- P- 3 VICINITY MAP NTS PROJECT DIRECTORY OWNER: LI N DSAY CROCKER NC DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF MITIGATION SERVICES 2 1 7 WEST JON ES ST., SUITE 3000A RALEIGH, NC 27603 DESIGNED BY: RESOURCE ENVIRONMENTAL SOLUTIONS, LLC 3600 GLENWOOD AVE., SUITE 1 00 RALEIGH, NC 27612 AS -BUILT SURVEY BY: RESOURCE ENVIRONMENTAL SOLUTIONS, LLC 3600 GLENWOOD AVE., SUITE 1 00 RALEIGH, NC 27612 DMS PROJECT #: CONTRACT #: USACE ACTION ID #: RFP #: DWR #: NOTES: 100095 7746 SAW-20 1 9-00487 1 6-007577 201 9-0495 • ALL DISTANCES ARE HORIZONTAL GROUND MEASUREMENTS IN U.S. SURVEY FEET UNLESS OTHERWISE NOTED. • HORIZONTAL DATUM IS NAD83(20 1 1 ); VERTICAL DATUM I S NAVD 88 • THIS MAP IS NOT INTENDED FOR RECORDATION, SALES OR CONVEYANCES • THE PURPOSE OF THIS MAP AND AS -BUILT DRAWING IS TO ILLUSTRATE THE POST- CONSTRUCTION "AS -BUILT CONDITIONS" OF THE STREAM RESTORATION AND MAY NOT SHOW ALL IMPROVEMENTS OR UTILITIES. • NO PROPERTY LINES WERE SURVEYED, ALL BOUNDARY AND CONSERVATION EASEMENT LINES WERE REFERENCED FROM RECORDED PLATS • STATE PLANE COORDINATES AND ELEVATIONS WERE DERIVED FROM EXISTING ONSITE CONTROL SURVEY PREPARED AND ESTABLISHED BY WSP USA INC. COWFORD MITIGATION SITE AS -BUILT ONSLOW COUNTY, NORTH CAROLINA WHITE OAK RIVER BASIN: HUC 03030001 APRIL 2022 RESOURCE ENVIRONMENTAL SOLUTIONS, LLC 3600 GLENWOOD AVE, SUITE 100 RALEIGH, NC 27612 SITE MAP NTS I, BRIAN S. hOCKETT CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION AND THAT THIS GROUND SURVEY WAS PERFORMED AT THE 90% CONFIDENCE LEVEL TO MEET FEDERAL GEOGRAPHIC DATA COMMITTEE STANDARDS; THAT THIS SURVEY WAS PERFORMED TO MEET THE REQUIIREMENTS FOR A TOPOGRAPHIC/PLANIMETRIC SURVEY TO THE ACCURACY OF CLASS "A" AND VERTICAL ACCURACY WHEN APPLICABLE TO THE CLASS "A" STANDARD, AND THAT THE ORIGINAL DATA WAS OBTAINED ON JUNE 24th 202 I ; THAT THE SURVEY WAS COMPLETED ON MARCH 22nd 2022; THAT CONTOURS SHOWN AS BROKEN LINES MAY NOT MEET THE STATED STANDARD; AND ALL COORDINATES ARE BASED ON NAD83 (20 I I) AND ELEVATIONS ARE BASED ON NAVD88 (GEOID 18) I . CLASS OF SURVEY: CLASS A 2. POSITIONAL ACCURACY: 0.08' 3. TYPE OF GPS FIELD PROCEDURE: RT 7VRS 4. DATES OF SURVEY: 6-24-202 I - 3-22-2022 5. GEOID MODEL: 18 6. UNITS: U.S. SURVEY FEET WITNESS MY ORIGINAL SIGNATURE, LICENSE NUMBER AND SEAL THIS I3`'' DAY OF A, ;, 2022, A.D. BRIAN S. HOCKETT Sheet List Table Sheet Number Sheet Title -- COVER S1 REACH KJ1 S2 REACH KJ 1 S3 REACH KJ 1 S4 REACH KJ 1 S5 REACH KJ 1 S6 REACH KJ 1 S7 SWALE A S8 SWALE B J i ., res 3600 Glenwood Ave, Suite Raleigh, NC 27612 Main: 919.829.9909 www.res.us 100 Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL \so\\ I I I I I l 1 l//////,� � p%..FESS/O••./y :a SEAL �` L-5165 = .%.9y gf r3/aa,,o.: c..• .-. �j REVISIONS: PLOT DATE: 4/13/2022 RELEASED FOR: AS -BUILT DRAWINGS PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\100900_AB_Design.dwg SAVED BY: Bhockett LGE 0„00 INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE _ TB' LGE TB — T6� g31 2+50 X5 I 7 7 t LCE \tCE vvv \ \ \ — TB---- \VA 2.' — TB— `—__ _-- BB- - BB— —— TB' �g8� O 3+00 \� 3+50- BB----- BB BB \` BB LCE BB -- — —— BB----- — — — — TB----- g91 X5 2 B — TB — TB--- REACH KJ I -A HEADWATER VALLEY RESTORATION STA I +42 TO I 0+65 X5 2 g31 — — TB TB — TB-- -- TB_ — TB- +50 5+00 --- — — — TB — — — — 5+50 G+ — BB--= -- BB — BB----- BB — — TB----- TB-- g91 00 LCE — BB g31 0 0 � N A 0 88 80 75 70 65 GO AS -BUILT CHANNEL BED AS -BUILT TOP OF BANK 0+00 0+50 I +00 I +50 2+00 2+50 3+00 SCALE: HOR I "=30'; VERT I "=3' 3+50 4+00 4+50 5+00 80 75 70 65 GO 5+50 6+00 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND TOP OF BANK BOTTOM OF BANK TREELINE LIMITS OF CONSERVATION EASEMENT WETLAND DEPRESSION — BRUSH TOE PROTECTION HAYBALE TOE PROTECTION ENGINEERED SEDIMENT PACK LOG STRUCTURE ROCK STRUCTURE BRUSH BED SILL GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT LCE TB f23 0 0 VP# J 1 res 3600 Glenwood Ave, Suite Raleigh, NC 27612 Main: 919.829.9909 www.res.us 100 Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL ,\\\\11I l I l i i i,,,/,j/ :a SEAL r" -5165 S \ ii,i,nn nio %...,a7 — '''.1....„-'4.11%..4 3 1 "=30 60 FULL SCALE: 0 30 2" = FULL SCALE 1' 1 " = HALF SCALE 1' REVISIONS: PLOT DATE: 4/13/2022 RELEASED FOR: AS -BUILT DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE AS -BUILT ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ 1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH TRS SHEET NUMBER: SI \ABRL\100900 AB Design.dwg SAVED BY: Bhockett ILE NAME:R:\Rescad\Projects\100900-Cowfo TB — — — I [J 5+50 6+ — — BB — — — BB BB— BB — — TB— ;31 LCE 00 — — BB — _-- TB —- — TB LCE X5 3 � Q D LCE REACH KJ I -A HEADWATER VALLEY RESTORATION STA I +42 TO I 0+65 — TB — — — TB 7+50 — BB----- Bg I — — TB — --- BB----- BB—_ 6 — TB -- — TB--0 X5 3 -c6 ;31 INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE LCE, \ \\ / z\\ \\ \\\ \ 9+50 \\ \\\ g QO BB BB 1� -- BB —--- - —' � \I\� \gym BB_ — TB — — ;31 LCE -- BB— 88----- BB-- ;31 — BB ;rn INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE es \� /O ee, -SD k00 1\ / r ee\\� -mod ems\ s���!� ��� \ \ XS /i V �--_�� \Vr\ --\'0 Tee \ i! T.(51.cP \ \ \\ \ \ \\\ \ \ \\ A \�T\ .\ \ao \ \ \� \ \ \\ \ \\\ \ \ m� \ \\ \ \\ \ \ \44- REACH KJI-13 \\\\\\\ RESTORATION \ vA \ STA IO+65TO 19+17 A \\\ INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE 00 1\ / �eJ l I / /"%` 0 / \\\/ / xv) — — r //// x <---.-,,,,Q, \ `\ 13 + O( ), B BB XS 5 80 75 80 70 - 65 - 60 - AS -BUILT TOP OF BANK AS -BUILT CHANNEL BED +00 6+50 7+00 7+50 +00 8+50 9+00 SCALE: HOR I "=30'; VERT I "=3' 9+50 I0+00 I0+50 II+00 75 70 65 60 11+50 12+00 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND TOP OF BANK BOTTOM OF BANK TREELINE LIMITS OF CONSERVATION EASEMENT WETLAND DEPRESSION BRUSH TOE PROTECTION HAYBALE TOE PROTECTION ENGINEERED SEDIMENT PACK LOG STRUCTURE ROCK STRUCTURE BRUSH BED SILL GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT 50 46 LCE TB BB f23 0J 0 0 V P# J 3600 1 res Glenwood Ave, Suite Raleigh, NC 27612 Main: 919.829.9909 www.res.us 100 Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL ��,�\\\ \ i i 1 l 1 u i ///�,,1 \, %.••FEssio•./ :a SEAL L-5165 0 it 1 "=30 60 FULL SCALE: 30 2' FULL SCALE 1 " = HALF SCALE REVISIONS: PLOT DATE: 4/13/2022 RELEASED FOR: AS -BUILT DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE AS -BUILT ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH TRS SHEET NUMBER: S2 \ABRL\100900 AB Design.dwg SAVED BY: Bhockett ILE NAME:R:\Rescad\Projects\100900-Cowfo \\ \9 \ee\ Te\ \ \\ N ' \ e\ eN \ 6,\ \\ \ 8 \e6 T6 \\ \\ N NN N \\ \ 6> xge\ Te\ \\ \N\ \ 9 T e \ N N. \ �.5\ \ _ _I 0+50 \ \ _- TB — BB 80 75 70 65 60 W L H &LI 2 00 .l\\ r r:/� \ _�� �/co _I._5 0 XO ��/7 Te / 4\ INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE REACH KJ I -B RESTORATION STA 1 0+65 TO 1 9+ 17 X5 5 AN T 4\ INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE /N 4\ \O 4\ 4\ 4\ ' 4 SWALE A 4\ OO x�0 -03 —e,a 4\ 4\ 4\ 4\ 4\ \ O GW-3 4\ 4\ 4\ \I 4\ `\'I it \1 XS 6/7 I I /I 0 O Gw I / l CO 6, . \\ ' I 'I :- 4\ 4\ 4\ 4\ 4\ 4\ 6S� 4\ 4\ 1�4-00 4\ \4\ / \\ 17+50y 4\ 4\ 4\ 4\ 00 L 1 8 00 -5 S -BUILT CHANNEL BED AS -BUILT TOP OF BANK 13+00 13+50 14+50 15+00 15+50 17+00 17+50 80 75 70 65 GO 15+00 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND TOP OF BANK BOTTOM OF BANK TREELINE LIMITS OF CONSERVATION EASEMENT 50 46 WETLAND DEPRESSION — BRUSH TOE PROTECTION HAYBALE TOE PROTECTION ENGINEERED SEDIMENT PACK LOG STRUCTURE ROCK STRUCTURE BRUSH BED SILL GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT LC E TB BB 0 ., res 3600 Glenwood Ave, Suite Raleigh, NC 27612 Main: 919.829.9909 www.res.us 100 Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL % ,a„..%-1-4) 13)0\`'.:,,,. 1"= 30 60 FULL SCALE: 0 30 2" = FULL SCALE REVISIONS: PLOT DATE: 4/13/2022 RELEASED FOR: AS -BUILT DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE AS -BUILT ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH TRS SHEET NUMBER: S3 FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\100900_AB_Design.dwg SAVED BY: Bhockett 1 -A -A \\ I); //\ 1,XS Te 8 -A 0 GW-5 rn -A co \\\ G4 \\ \ \ I\\ 11ml I I I REACH KJ 1 -B 1 W 1 1 RESTORATION IIIII STAI0+65To19+17 Col 11 1 Illll 111E81 I'll I WI 1 1;/I �111 1jlII' I1AI I►1� / 0 rn INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE SCE INSTALLED 56 LF OF 66" X 5 I " CMPA INV. IN: 61.201 INV. OUT: G I .04' AL) 8 20+00 - SCE X5 8/9 re XS 9 00 ,s�i/� LCE 64— X50 0 Lc REACH KJ 1 -C RESTORATION STA 1 9+85 To 35+57 —TB se �_ �\ • Z L Te_� g91 Te O 62 .g37 \\23+00 �`TB- 7 LCE 23+50-'— \\ LC TB 6 \e\ NN • xTB B� Y 66 xs I LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND TOP OF BANK BOTTOM OF BANK TREELINE LIMITS OF CONSERVATION EASEMENT WETLAND DEPRESSION BRUSH TOE PROTECTION HAYBALE TOE PROTECTION ENGINEERED SEDIMENT PACK LOG STRUCTURE ROCK STRUCTURE BRUSH BED SILL GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT 50 46 LC E TB BB f23 0J 0 0 C V P# 70 65 60 55 50 18 AIN— \ AS -BUILT / TOP OF BANK — — — — ll 1 /----\ , INSTALLED \J " � 66" x 5 I CMPA �� CHANNEL AS BUILT BED R CONSERVATION + m EASEMENT BREAK m Q H Q H +00 18+50 19+00 1 9+50 20+00 20+50 2 I +00 2 I +50 22+00 22+50 23+00 23+50 24+1 SCALE: HOR I "=30'; VERT I "=3' 70 65 60 55 50 0 3600 Glenwood Ave, Raleigh, NC Main: 919.829.9909 www.res.us re__..„,...s 1 Suite 27612 100 Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL 0\\\I I I I I I I1/,,, :a SEAL L-5165 / vim`•'- '''I'I I III GK��I:3--->-6)41P//./.4...4;.:°,it �` \\\ \ 1 "=30 60 FULL SCALE: 0 30 2" = FULL SCALE 1" = HALF SCALE REVISIONS: PLOT DATE: 4/13/2022 RELEASED FOR: AS -BUILT DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE AS -BUILT ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH TRS SHEET NUMBER: S4 FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\100900_AB_Design.dwg SAVED BY: Bhockett i kO 0 7/ 7 LCE k5 / 7/ TB a\` —� / LC -57 - Ts 24+50 = J / LCE XS 10/1 1 0 J //R' <0X // ��- // / // / _X5 IQ LCE REACH KJ I -C RESTORATION STA 19+85 To 35+57 BB - X5 11 TREATMENT POOL 2c0 27+00 /� B-23731 T@ SWAL grn v N \ m 03 INSTALLED ENGINEERED SEDIMENT PACK T.@ @� BB/ 9 /-00 Stage Recorder] Go O O co XS 12 XS 1 2/1 3 XS 13 P O Xs O Lc 3 1 +00 B_— - -- \ --� 6, 70 G5 GO 55 50 24 I 1 I I 4- /N__�� AS TOP -BUILT OF BANK / AS -BUILT BED - CHANNEL 1 +00 24+50 25+00 I 1 1 25+50 1 26+00 1 1 1 26+50 1 1 27+00 1 1 1 27+50 1 1 1 28+00 1 1 28+50 1 1 1 29+00 29+50 1 30+ SCALE: HOR I "=30'; VERT I "=3' 70 G5 GO 55 50 0 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND TOP OF BANK BOTTOM OF BANK TREELINE LIMITS OF CONSERVATION EASEMENT WETLAND DEPRESSION — BRUSH TOE PROTECTION HAYBALE TOE PROTECTION ENGINEERED SEDIMENT PACK LOG STRUCTURE ROCK STRUCTURE BRUSH BED SILL GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT O LC E TB f23 0 0 0. VP# 1 res 3600 Glenwood Ave, Suite Raleigh, NC 27612 Main: 919.829.9909 www.res.us 100 Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL ��,0111111II1/l//,j/ \No-.••F• ESsi.... _ : - SEAL L-5165 6) "a° SU/R.`' '// H // nil /y � •'`ti • , . 0\ _ 1 "=30 60 FULL SCALE: 0 30 2" = FULL SCALE I` 1 " = HALF SCALE 1' REVISIONS: PLOT DATE: 4/13/2022 RELEASED FOR: AS -BUILT DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE AS -BUILT ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ 1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH TRS SHEET NUMBER: S5 FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\100900_AB_Design.dwg SAVED BY: Bhockett Stage RecorcPr7 n k-' \� .e—� \ • Tg9\ `)O \\<9•\ 0 \\ N T Tee 8 LCE 3 ► +OO BB— B _7 \\ \\\\ yvy — 6e \'° 6\ • eg i LCE ]DI LCt i \ T6 88 a33 REACH KJ I -C RESTORATION 5TA 19+85 To 35+57 ]DI 33 S0 / // ]DI LCE X5 14 k 00 / x�0 3 � LCt X5 1 5 OP --/ = TB ;9"\ rc\5 TB 36+00 36+5036�i1 I GO 55 50 45 40 3 AS -BUILT TOP OF BANK CHANNEL AS -BUILT BED V / �___ lr 1 11 „ „ +00 30+50 3 1 +00 1 I 3 I +50 I I I 32+00 1 1 1 I I I I I I I I 32+50 33+00 33+50 1 1 1 I I 34+00 I I I I I I I I I I „ „ 34+50 35+00 35+50 36+ SCALE: HOR I "=30'; VERT I "=3' GO 55 50 45 40 0 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND TOP OF BANK BOTTOM OF BANK TREELINE LIMITS OF CONSERVATION EASEMENT WETLAND DEPRESSION — BRUSH TOE PROTECTION HAYBALE TOE PROTECTION ENGINEERED SEDIMENT PACK LOG STRUCTURE ROCK STRUCTURE BRUSH BED SILL GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT LCE TB f23 0J 0 0 VP# / 1 res 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL \\,0\11111 I I Ill//// \, x-o -.••• FEssio••../ : - SEAL �` :. 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SURD .. illill"_\_\--\_.\_\_\—\ kii://1/1 A '1..7''k''''...• "."-A / 1••.-A FULL SCALE: 1 "=30 0 30 60 2' FULL SCALE 1' 1 " = HALF SCALE 1' REVISIONS: PLOT DATE: 4/13/2022 RELEASED FOR: AS -BUILT DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE AS -BUILT ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ 1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH TRS SHEET NUMBER: S6 \ABRL\100900 AB Design.dwg SAVED BY: Bhockett ILE NAME:R:\Rescad\Projects\100900-Cowfo 2�00 3A.00 INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE 75 70 65 60 55 3+ U J U J \� 1 - Ak0O TB —Ts- TB.� ' BB BB -- � S� TREATMENT POOL W-2 1 LCE LCE _ — -—= XS F —tee x / . 8 7 1\\ \\N' 6./ \ as VP 4 REACH KJ I -B 7 +0 SWALE A (RESTORATION) X5 r \\s9\ ,/ F///// i o., N X5� W-I b\ r LCE T / 6 F 17/ F I L I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 AS -BUILT TOP OF BA K EASEMENT AS -BUILT CHANNEL BED ■ 1 1 - - - - - - - - I - - - 1 1 1 1 1 1 1 1 1 - - - - 1 1 1 SCALE: hOR I "=30'; VERT I "=3' •• ,•• .•• .40 •••40•60•40•40 041 40 40 *IMO %$...$11110A ARAO. tati OGW-4 0 75 70 65 60 55 \\ 17 ,) i // 7// .�/ // //// /,_BB 11 II 1 �I F — SS LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND TOP OF BANK BOTTOM OF BANK TREELINE LIMITS OF CONSERVATION EASEMENT WETLAND DEPRESSION BRUSH TOE PROTECTION HAYBALE TOE PROTECTION ENGINEERED SEDIMENT PACK LOG STRUCTURE ROCK STRUCTURE BRUSH BED SILL GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT 50 46 LCE TB BB O© 0 0. V P# / 1 res 3600 Glenwood Ave, Suite Raleigh, NC 27612 Main: 919.829.9909 www.res.us 100 Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL \\,\\\\Unuliiiii// :a SEAL :. L-5165 , ip U R rein illiwo‘( i 60 1 "=30 FULL SCALE: 0 30 2" = FULL SCALE 1 " = HALF SCALE REVISIONS: PLOT DATE: 4/13/2022 RELEASED FOR: AS -BUILT DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE AS -BUILT ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: SWALE A PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH TRS SHEET NUMBER: S7 FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\100900_AB_Design.dwg SAVED BY: Bhockett ox 0 0+50 70 G5 GO 55 SWALE B TREATMENT POOL �O )I::I Sta e Rece // \\ co\ 1\ \ m 0)/ /;/ 192 I / O/ x 4:/ co Xv — I — \:- 2+50 sL ��/ �m I— 8,----f#/ \s\- �� m) r ,al_- 1 I \ / /%/ \ 1 /,/ /7/ /% I( N 88 8J. INSTALLED ENGINEERED SEDIMENT PACK / 1 / , MN • MENNEMENNEd MENNEMENEWI MiliMENEW MEKTIE =NM NEWAIELEME MENIMMEIFILIE "%EMMEN= im =MENNEN MN =MENNEN MN MN =MENNEN 14111 AS -BUILT CHANNEL BED I +00 I +50 2+00 2+50 SCALE: I10R I "=30'; VERT I "=3' 3+00 70 G5 GO 55 3+50 fl rn rn LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND TOP OF BANK BOTTOM OF BANK TREELINE LIMITS OF CONSERVATION EASEMENT WETLAND DEPRESSION — BRUSH TOE PROTECTION HAYBALE TOE PROTECTION ENGINEERED SEDIMENT PACK LOG STRUCTURE ROCK STRUCTURE LC E TB f23 0J BRUSH BED SILL ;/%0 GROUNDWATER MONITORING WELL STAGE RECORDER 0 FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT VP# J 1 res 3600 Glenwood Ave, Suite Raleigh, NC 27612 Main: 919.829.9909 www.res.us 100 Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL \\\\\U I I I l 11 /11/// _. * 9 , _ :a SEAL , L-5165 .•.-1tiy'/13J _ : _ (lig flitim ttIIIIII//1' /4 1 "=30 60 FULL SCALE: 0 30 2" = FULL SCALE I` 1 " = HALF SCALE 1' REVISIONS: PLOT DATE: 4/13/2022 RELEASED FOR: AS -BUILT DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE AS -BUILT ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: SWALE B PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH TRS SHEET NUMBER: S8 FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\Record Drawings\100900_RD_COVER.dwg SAVED BY: Bcarroll Corner Hargett Crocsro3ds armor to Wn Huffman -town WW1 arantsd z: goyy Forks PROJECT LOCATION Brocks Richland s Comfort Gum l3 ■' 114.-mameti ® 2021 Microsoft oration C 2021 TomTom el VICINITY MAP NTS PROJECT DIRECTORY OWNER: LINDSAY CROCKER NC DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF MITIGATION SERVICES 2 17 WEST JONES ST., SUITE 3000A RALEIGH, NC 27603 DESIGNED BY: RESOURCE ENVIRONMENTAL SOLUTIONS, LLC 3600 GLENWOOD AVE., SUITE 100 RALEIGH, NC 276 12 AS -BUILT SURVEY BY: RESOURCE ENVIRONMENTAL SOLUTIONS, LLC 3600 GLENWOOD AVE., SUITE 100 RALEIGH, NC 276 12 DMS PROJECT #: CONTRACT #: USACE ACTION ID #: RFP #: DWR #: 100095 7746 SAW-20 19-00487 6-007577 20 19-0495 COWFORD MITIGATION SITE AS -BUILT SURVEY SEALED BY BRIAN S. HOCKETT, PLS (L-5 165) ON APRIL 13, 2022. COWFORD MITIGATION SITE ONSLOW COUNTY, NORTH CAROLINA WHITE OAK RIVER BASIN: HUC 03030001 APRIL 2022 RESOURCE ENVIRONMENTAL SOLUTIONS, LLC 3600 GLENWOOD AVE, SUITE 100 RALEIGH, NC 27612 SITE MAP NTS Sheet List Table Sheet Number Sheet Title -- COVER S 1 REACH KJ 1 S2 REACH KJ 1 S3 REACH KJ 1 S4 REACH KJ 1 S5 REACH KJ 1 S6 REACH KJ 1 S7 SWALE A S8 SWALE B 1 , , res 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL 'JI/)� r;. es SEAL -z. !� REVISIONS: PLOT DATE: 4/14/2022 RELEASED FOR: RECORD DRAWINGS PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\Record Drawings\100900_RD_DESIGN.dwg SAVED BY: Bhockett 0 80 75 70 G5 GO 0 °goo LCE L/ O g91 7( LCE XS I BB-- g31 ADDITIONAL DRAIN TILE LOCATED DURING CONSTRUCTION. DRAIN TILE OUTLET W/MATTED SWALE ADDED. LCE TZ LCE 6S i z — �s XS 2 —BB---BB �— — BB----- Bg- REACH KJ I -A HEADWATER VALLEY RESTORATION 0' - BB XS 2 LCE --- TB--- -- TB_ — — — BB +1 — BB— B B — BB----- BB— i— - N 69 — BB----- B — BB — — -- - TR— LCE -‘g 68 — PROPOSED TOP OF BANK 5-BUILT OF5 -OP NK Il CHANNEL P,S-BUILT BED PROPOSED CHANNEL BED SCALE: HOR I "=30'; VERT I "=3' 0 0 k � N z� U 80 75 70 G5 GO LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND TOP OF BANK BOTTOM OF BANK TREELI NE LIMITS OF CONSERVATION EASEMENT PROPOSED BRUSH TOE PROTECTION PROPOSED HAYBALE PROTECTION PROPOSED LOG STRUCTURE PROPOSED ROCK STRUCTURE PROPOSED BRUSH BED SILL PROPOSED ENGINEERED SEDIMENT PACK AS -BUILT BRUSH TOE PROTECTION AS -BUILT HAYBALE PROTECTION AS -BUILT LOG STRUCTURE AS -BUILT ROCK STRUCTURE AS -BUILT BRUSH BED SILL 50 46 — — — — TB — — — — BB LCE ■...........■ V/zil 0 0 0 / r c5:5) AS -BUILT ENGINEERED SEDIMENT PACK GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT 9 0 0 VP# NOTE: ALL SIGNIFICANT CHANGES FROM THE DESIGN ARE SHOWN IN RED 1 1 res 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL o\ki•�Ayt tClA Roi/i4/• L "9' `` ,c ) c_SS/04, SEAL 0�5$0 its ;ii►lko 3 1 "=30 60 FULL SCALE: 0 30 2" = FULL SCALE 1` 1" = HALF SCALE 1\ REVISIONS: PLOT DATE: 4/14/2022 RELEASED FOR: RECORD DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ 1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: SI Ti 8 FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\Record Drawings\100900_RD_DESIGN.dwg SAVED BY: Bhockett i - LCE I----- _---- -TB-- ;31 LCE 88 -- BB — BB — LCE X5 3 00— — — BB —' ee Bs — T� X5 3 gal LC E gal INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE LCE -- BB----- BB - - BB----- BB— TB---=BT� = BB sB REACH KJ I -A HEADWATER VALLEY RESTORATION ;31 BB — ----- -BB ��� ;91 REMOVED DRAIN TILE AND INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE \G- INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE <53 \\ \ \ 67 46) ,01 G'? 207 — — TB g -/\ co <9Ij /7 \ -, � / / I / / /, \ \(3 4 // XS 5 80 75 70 65 60 6 1 1 PROPOSED TOP OF BANK BANK AS TOP -BUILT OF 1 -BUILT A C-IAN EL BED PROPOSED CHANNEL BED I 1 1 1 1 1 1 1 I 1 1 SCALE: hIOR I "=30'; VERT I "=3' 80 75 70 65 60 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND 50 46 TOP OF BANK — — — — — TB BOTTOM OF BANK — — — — — BB TREELI NE LIMITS OF CONSERVATION EASEMENT PROPOSED BRUSH TOE PROTECTION PROPOSED HAYBALE PROTECTION PROPOSED LOG STRUCTURE 54 PROPOSED ROCK STRUCTURE PROPOSED BRUSH BED SILL PROPOSED ENGINEERED SEDIMENT PACK A5-BUILT BRUSH TOE PROTECTION AS -BUILT HAYBALE PROTECTION AS -BUILT LOG STRUCTURE AS -BUILT ROCK STRUCTURE AS -BUILT BRUSH BED SILL AS -BUILT ENGINEERED SEDIMENT PACK GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT LCE ■...........■ 0 9 r 9 c5:5) 0 0 VP# NOTE: ALL SIGNIFICANT CHANGES FROM THE DESIGN ARE SHOWN IN RED res 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL •�Ayt t�lA RDi®''''•, St- SEAL 04 58,0 ON� 1 "=30 60 i It FULL SCALE: 0 30 2" = FULL SCALE 1\ 1" = HALF SCALE 1\ REVISIONS: PLOT DATE: 4/14/2022 RELEASED FOR: RECORD DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ 1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: S2 >ioo48 :A8 GEMS 6MP'NJISEa as 006001\s6uinnma paooet:\1U8V\ FILE NAME:R:\Rescad\Projects\100900-Co 75 70 65 GO 55 12 ADDITIONAL DRAIN TILE LOCATED DURING CONSTRUCTION. DRAIN TILE OUTLET W/MATTED SWALE ADDED. REACH KJ I -B RESTORATION T � PROPOSED WETLAND DEPRESSIONS 1 O GW-3 4\ 1 INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE 1 1 PROPOSED TOP OF BANK AS -BUILT TOP OF BANK PROPOSED CHANNEL -A CHANNEL AS -BUILT BED BED SCALE: HOR I "=30'; VERT I "=3' 75 70 G5 GO 55 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND 50 46 TOP OF BANK — — — — — TB BOTTOM OF BANK — — — — — BB TREELI NE LIMITS OF CONSERVATION EASEMENT PROPOSED BRUSH TOE PROTECTION PROPOSED HAYBALE PROTECTION PROPOSED LOG STRUCTURE PROPOSED ROCK STRUCTURE PROPOSED BRUSH BED SILL PROPOSED ENGINEERED SEDIMENT PACK AS -BUILT BRUSH TOE PROTECTION AS -BUILT HAYBALE PROTECTION AS -BUILT LOG STRUCTURE AS -BUILT ROCK STRUCTURE AS -BUILT BRUSH BED SILL AS -BUILT ENGINEERED SEDIMENT PACK GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT LCE Uk92952s ■...........■ •••• 9 r ° c5:5) 9 0 0 0 VP# NOTE: ALL SIGNIFICANT CHANGES FROM THE DESIGN ARE SHOWN IN RED 1 res 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL \°sty tClA RDA®''''•, . ,OSL OFESS/p,Y/'t11 SEAL 0450 GINE-C-. 1 "=30 60 FULL SCALE: 0 30 2' FULL SCALE 1` 1" = HALF SCALE 1` REVISIONS: PLOT DATE: 4/14/2022 RELEASED FOR: RECORD DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ 1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: S3 FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\Record Drawings\100900_RD_DESIGN.dwg SAVED BY: Bhockett \ It cDr l/I IlL O co co cig co O GW-5 0 PROPOSED 56 LF OF GG" x 5 I " CMPA INV. IN. G I .0' G I .20' INV. OUT. 60.8' 61.04' 20+00 z:z -to AGE LCE XS 8 _ — 006,66 XS 8/9 REACh KJ I -C RESTORATION - // BB% LCE +00 BB rn G4 0 rn SCE -.1::k1k.)4k.. st♦•!.�•♦•�wpb •� wiplo Or�w..ilt:,...ito ,Y'� ���S�j�% !-> kibribilii- Nip.. •ftw.,„, ppy:414 .1, iii %Ariel a 0 • ♦ •a 1 Vi�I.� �./ �♦• � Ill. •♦ % 1 ♦•%' •� 1. �,•♦•�' •.I1 0 rn i REMOVED DRAIN TILE AND INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE g37 SCE \\ __ ,Rram\ \ \\ / i/ V7—b T` .,! \�cP 7 0 0 CV W Ln (1) z LCE \ B ice— TB�\e\0 \e\ r +Q BB TB GI Y G5 (4( X5 10 70 G5 GO 55 50 18 �1 I - - - PPOPQSED T P OF BANK --- ---- --- - AS -BUILT TOP OF BANK ----------�� - INSTALLED I _ _11 - -- - -- - ---- GG"x 5 "CMPA \� �\ \/ � Tillr\ / I CHANNEL AS -BUILT BED PROPOSED CH1NNEL BED CONSERVATION EASEMENT BREAK E + r co + m Q m I- n cn 1 1 1 1 1 +00 18+50 i i 1 i i 1 1 I I I I I I I I 1 9+00 1 9+50 20+00 20+50 2 1 +00 1 1 1 I I I I I I I I 1 1 1 2 1 +50 22+00 22+50 23+00 23+50 24+ SCALE: hOR 1 "=30'; VERT 1 "=3' 70 G5 GO 55 50 0 a LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND 50 4G W W W W W W TOP OF BANK — — — — — TB BOTTOM OF BANK — — — — — BB TREELI NE LIMITS OF CONSERVATION EASEMENT PROPOSED BRUSH TOE PROTECTION PROPOSED HAYBALE PROTECTION PROPOSED LOG STRUCTURE PROPOSED ROCK STRUCTURE PROPOSED BRUSH BED SILL PROPOSED ENGINEERED SEDIMENT PACK AS -BUILT BRUSH TOE PROTECTION AS -BUILT HAYBALE PROTECTION AS -BUILT LOG STRUCTURE AS -BUILT ROCK STRUCTURE AS -BUILT BRUSH BED SILL AS -BUILT ENGINEERED SEDIMENT PACK GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT LCE ■...........■ •••• / r o 9 c5:5) 9 0 0 VP# NOTE: ALL SIGNIFICANT CHANGES FROM THE DESIGN ARE SHOWN IN RED 1 res 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL •�Ayt t�lA RDi®'''//, Z i SEAL 0450 iV IN6# 1 "=30 60 `` ir FULL SCALE: 0 30 2" = FULL SCALE 1\ 1" = HALF SCALE 1\ REVISIONS: PLOT DATE: 4/14/2022 RELEASED FOR: RECORD DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ 1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: S4 >ioo48 :A8 GEMS 6MP'NJISEa as 006001\s6uinnma paooet:\1U8V\ FILE NAME:R:\Rescad\Projects\100900-Co SCE 0/�e eat �?)/ 3 70 65 GO 55 50 24 SCE (P _ / �' / Ts 696 /—13'Be�T gal SCE SCE XS 1 0/ 1 I //7- �> 0 XS I �C5TII _ — --- — gpl REACH KJ I -C RESTORATION g31 6Th BB —_ ww� x0 \T�s,--J/ / gal 59 SWALE B g31 ,.rea+��ca,•,, ` v Stvca \Pecorder U \\< 0 'P\ 0 XS 12 XS 12/13 1 PROPOSED TOP OF BANK -- — -- _� ---� AS -BUILT TOP OF BANK A41,— AS-BUILT CHANNEL BED PROPOSED CHANNEL BED +00 24+50 1 1 i 1 25+00 1 1 25+50 1 1 26+00 1 26+50 1 1 1 1 27+00 1 27+50 28+00 28+50 29+00 29+50 30+ SCALE: IOR I "=30'; VERT I "=3' 70 G5 GO 55 50 0 59 XS 13 \\\\\- 3 I +00 . Lc LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND 50 46 W W W W W W TOP OF BANK — — — — — TB BOTTOM OF BANK — — — — — BB TREELI NE LIMITS OF CONSERVATION EASEMENT PROPOSED BRUSH TOE PROTECTION PROPOSED HAYBALE PROTECTION PROPOSED LOG STRUCTURE PROPOSED ROCK STRUCTURE PROPOSED BRUSH BED SILL PROPOSED ENGINEERED SEDIMENT PACK AS -BUILT BRUSH TOE PROTECTION AS -BUILT HAYBALE PROTECTION AS -BUILT LOG STRUCTURE AS -BUILT ROCK STRUCTURE AS -BUILT BRUSH BED SILL AS -BUILT ENGINEERED SEDIMENT PACK GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT LCE fmk92952s ■...........■ \ 9 r c5:5) 9 0 0 VP# NOTE: ALL SIGNIFICANT CHANGES FROM THE DESIGN ARE SHOWN IN RED 1 res 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL oki°�k� tClA RDi® iiiiiio \ '''�•, es SEAL 0�5�0 tz FULL SCALE: 1 "=30 0 30 60 2" = FULL SCALE 1\ 1" = HALF SCALE 1` REVISIONS: PLOT DATE: 4/14/2022 RELEASED FOR: RECORD DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ 1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: S5 >ioo48 :A8 GEMS 6MP'NJISEa as 006001\s6uinnma paooet:\1U8V\ 0 FILE NAME:R:\Rescad\Projects\100900-Co , 29� — rg" \\ St�c\ "Recorder \ TB - XS 12/13 X5 13 LCE 31+00' 2 \ Be 64 -62—/ REACH KJ I -C RESTORATION Tg?X Q g3� • yz e �� 55- -57 • XS 14 LCt- XS 15 / /--- i —56---- 53 — TB __ _ / / — —56 g91 3G 00 60 55 50 45 40 30 1 �— — - ---- — PROPOSED TOP OF BANK — — — IL f—'-� / \ 1 AS TOP -BUILT OF BANK CHANNEL AS -BUILT BED 1 — / J — \ / PROPOSED CHANNEL BED _ / I � I +00 30+50 1 1 1 3 1 +00 3 1 +50 32+00 32+50 1 33+00 33+50 34+00 34+50 35+00 35+50 36+ SCALE: HOR I "=30'; VERT I "=3' 60 55 50 45 40 0 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND 50 46 W W W W W W TOP OF BANK — — — — — TB BOTTOM OF BANK — — — — — BB TREELI NE LIMITS OF CONSERVATION EASEMENT PROPOSED BRUSH TOE PROTECTION PROPOSED HAYBALE PROTECTION PROPOSED LOG STRUCTURE PROPOSED ROCK STRUCTURE PROPOSED BRUSH BED SILL PROPOSED ENGINEERED SEDIMENT PACK AS -BUILT BRUSH TOE PROTECTION AS -BUILT HAYBALE PROTECTION AS -BUILT LOG STRUCTURE AS -BUILT ROCK STRUCTURE AS -BUILT BRUSH BED SILL AS -BUILT ENGINEERED SEDIMENT PACK GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT LCE ■...........■ \ • 9 r c5:5) 0 0 VP# NOTE: ALL SIGNIFICANT CHANGES FROM THE DESIGN ARE SHOWN IN RED 1 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL .. \°�\y tClA RDA®'", rSEAT\E Z�v, yifs GINE�'-� ; � per;`. Al L.7 m " 7..M•lh.. a . . =I:=' , FULL SCALE: 1 "=30 0 30 60 2" = FULL SCALE 1` 1" = HALF SCALE 1` REVISIONS: PLOT DATE: 4/14/2022 RELEASED FOR: RECORD DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: REACH KJ 1 PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: S6 >ioo48 :A8 GEMS 6MP'NJISEa as 006001\s6uinnma paooet:\1U8V\ FILE NAME:R:\Rescad\Projects\100900-Co 7 7 i / 1 °POSED G4 RCP INV. : _4.46' OUT: 64. Not Installed During Project Construction Crossing To Be Installed By 0 Landowner At Later Date 3k0 7 7 7 7 7 7 7 / REMOVED DRAIN TILE AND INSTALLED DRAIN TILE OUTLET W/ MATTED SWALE 7 U J 00 U J LL1� TB / saw\, lam ---el ease TR 91 N F N 5 4- 00 Iy—el ,�'` ���\ .may i��q. , :N. - ---- - - -- --- - ) SWALE A RESTORATION / W-2, / N I 66 REACH IQ I N N // /7 x v` vv 7+00 \ v�� ���_ --- vN .. \\,....--- _7-7— --... - N..\ \ I�N N of \ \\ LCE N F N N F / 6 e i N N r• G N OWG W-4 N N LCE N N N N N 7 N N 0 N N F N N CONSTRUCTED WETLAND DEPRESSIONS F 75 70 65 60 55 2 - / / / / \. \ \ \ 1 AS TOP -BUILT OF BANK PRC-CONSTRUCTION GRADE ` / ---_*____„,________,___________ / AS CHANNEL -BUILT BED —PROPOSED CHANNEL BED 1/4T10I SCALE: hOR I "=30'; VERT I "=3' 75 70 65 60 55 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND 50 40 TOP OF BANK — — — — — TB BOTTOM OF BANK — — — — — BB TREELI NE LIMITS OF CONSERVATION EASEMENT PROPOSED BRUSH TOE PROTECTION PROPOSED HAYBALE PROTECTION PROPOSED LOG STRUCTURE PROPOSED ROCK STRUCTURE PROPOSED BRUSH BED SILL PROPOSED ENGINEERED SEDIMENT PACK AS -BUILT BRUSH TOE PROTECTION AS -BUILT HAYBALE PROTECTION AS -BUILT LOG STRUCTURE AS -BUILT ROCK STRUCTURE AS -BUILT BRUSH BED SILL AS -BUILT ENGINEERED SEDIMENT PACK GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT LCE fmk92952s ■...........■ r c5:5) ° 0 0 VP# NOTE: ALL SIGNIFICANT CHANGES FROM THE DESIGN ARE SHOWN IN RED 1 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL oki\°\y tClA RDA./////, ,„,r,sesio,,,,s SEAL 040 0 /9-I liz' 1 "=30 e 60 FULL SCALE: 30 2" = FULL SCALE 1` 1" = HALF SCALE 1` REVISIONS: PLOT DATE: 4/14/2022 RELEASED FOR: RECORD DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: SWALE A PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: S7 FILE NAME:R:\Rescad\Projects\100900-Cowford\ABRL\Record Drawings\100900_RD_DESIGN.dwg SAVED BY: Bhockett / / / / / / / / / / / //r / .. ///� ,`b- - / Stage Recopder \ \\ // °-A\\\v/ ',..\\ J) I i)/ / 0x / // / 0 I + 00— pi :--__ / / � 2-4-00 ae � \ � 4 / ,// 00J N \ / E. / '\\ \c't \,,,, � ~)I\ �� Ili/ i //�/ / / / % /./ ' / /// / / / / cn Im / / / 0 REACH KJ I / Co / / v Avvv / / / / '\ / / u� Al / / / -•II y1 2 / / / // / / / // / / / / / / I/ �// / / / \ / / ,;.r, / / / / / TREATMENT POOL / / / / / °/ / / / / / / r (f / / \ I .JI\� / / / / / / �I I A \ / / / / / / \ /\\ /I/// rn / 70 G5 GO 55 I BANK AS TO' -BUILT OF PROPOSED CHANNEL - - - - BED �� \lr 1 1 1 7 �/ \__r- \ i CHANNEL AS -DUI BiD T PRE -CONSTRUCTION GRADE \ - I 1 1 1 1 1 1 1 + + SCALE: HOR I "=30'; VERT I "=3' + + 70 G5 GO 55 LEGEND CONTOUR MAJOR CONTOUR MINOR WETLAND 50 46 W W W W W W TOP OF BANK — — — — — TB BOTTOM OF BANK — — — — — BB TREELI NE LIMITS OF CONSERVATION EASEMENT PROPOSED BRUSH TOE PROTECTION PROPOSED HAYBALE PROTECTION PROPOSED LOG STRUCTURE PROPOSED ROCK STRUCTURE PROPOSED BRUSH BED SILL PROPOSED ENGINEERED SEDIMENT PACK AS -BUILT BRUSH TOE PROTECTION AS -BUILT HAYBALE PROTECTION AS -BUILT LOG STRUCTURE AS -BUILT ROCK STRUCTURE AS -BUILT BRUSH BED SILL LCE ■...........■ 0 0 0 9 r 9 c5:5) AS -BUILT ENGINEERED SEDIMENT PACK GROUNDWATER MONITORING WELL STAGE RECORDER FLOW GAUGE MONITORING CROSS SECTION VEGETATION MONITORING PLOT 9 0 0 VP# NOTE: ALL SIGNIFICANT CHANGES FROM THE DESIGN ARE SHOWN IN RED 1 res 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 Main: 919.829.9909 www.res.us Engineering Services Provided By: RES Environmental Operating Company, LLC License: F-1428 SEAL •�\°\.\� tClA ROi//4.1' oiC SEAL 04 5� %F` FHGINE-C-- ., CV'''‘- ii Hum (et' qfpft Wit adir 91,4 , a go , 1 "=30 60 FULL SCALE: 0 30 2' FULL SCALE 1\ 1" = HALF SCALE 1\ REVISIONS: PLOT DATE: 4/14/2022 RELEASED FOR: RECORD DRAWINGS PROJECT NAME: COWFORD MITIGATION SITE ONSLOW COUNTY, NORTH CAROLINA DRAWING TITLE: SWALE B PROJECT NUMBER: PROJECT MANAGER: DESIGNED: DRAWN: CHECKED: 100900 MGB BRC BSH BRC SHEET NUMBER: S8 \. J Appendix F Soil Profile Cowford Mitigation Project Soil Profile Sampling Soil Sample ID: GW1 Staff: Hannah Gadai Date: April 28, 2022 Horizon (in.) Color Redox Redox Percent Texture Structure Consistency Notes 0-16 10YR Yes 5% Silt loam Granular 2/2 16-24 10YR No Clay Sub-angular 3/1 loam blocky 24-28 10YR No Clay Blocky 6/3 Soil Profile: ,!-.,v-vr,*. \\\,;;-, '„if -4 As-4 Ivro..e.- - r.... .,,,':-„,ic. .. . „„a .6... 4,1.56.,.., ,,. .. ...,k.. ,„„..„..., 1 4' .°Tr .-"re.,00, 11:37 ti,,, ' x r . . • ,.._ = . ,,,:, � -r 7:30,,, r-� ., , - ��_. i i - k"oa .- . . n. .-°+ ' V '-' .,.. ,. ..r # - -I'r44 - - 1-,-4.- -__', 1 , ' tb‘Y'''Yc, .A4 Wi l rI tI�( 1, - it . .t., ,,,,I W.,. .arr40%,, ,,,,,,. ..., .. t , ef �, fa' �' 7.1.'t•:.,,A, '1,, ‘. .,,, , ' ' / ,,,e,,,'4/0''',, \'1!-, - -r or- &•.. �, x yr�>d �,?- I° ,;4" _irt,tA -, - ''k ,, 4AR, >7, , 4.°1.,' .1.44' s\'' ;- vir ° ` �, t % �. x2tA,1 ' .4 4 4s:' Cowford Mitigation Project Soil Profile Sampling Soil Sample ID: GW2 Staff: Ryan Medric and Heath Hidlay Date: November 2, 2021 Horizon (in.) Color Redox Redox Texture Structure Consistency Notes Percent 0-6 10YR No Silt Granular 3/2 loam 6-20 10YR Yes 50% Clay Sub- Conc. 7YR 5/8 6/4 Concentrations/ loam angular Dep. 10YR 7/1 depletions blocky 20+ 10YR Yes 5% Clay Blocky Conc. 10YR 7/6 6/1 Concentrations Soil Profile: �\ 1 -•! . '• b 4 :t `{' may'. j. ,S M1i ,,,, r r"-v .J .5- ye-x - ,, -' \ i;.,L - x -„,;--.,,,--,,y 1 i, A -y1 " ( o ,Vq-- ii 4l -r p ',4,NA"&',,:•'CIPIt-, it•,:" "" -.'!'4'.'.i. ---\A 1(,,.',- 4,_`'',f,'-W,'''. • r r p. ^ ' 1, ,' fr C I ;14-- °FB ►` 4 Win �ist rf . ' v ' ,'�, lk „ f ,,V:;:-, ,,,,/I,,,_ .;',,,4 -,I s "i ,. i ,,,, % .,;,...rk.._.: ,,...... .,,, -41'4 J,� F ��1.,.7-•11: , /11,....--- — L _--'''et--- .4.. j P` 1 _ .T,,'. l� , - i•,--; 7.1r,,:lir L__ALA._ , r. ' i!.. ,6' . ,-----'°, a. ii ,,.. , ,,r. .... , ..,, „ 1. 'r ,„von' Tg n -, 1 y IlEN k 1 " d i. Cowford Mitigation Project Soil Profile Sampling Soil Sample ID: GW3 Staff: Ryan Medric and Heath Hidlay Date: November 2, 2021 Horizon (in.) Color Redox Redox Texture Structure Consistency Notes Percent 0-12 10YR No Silt Granular 3/2 loam 12-20 10YR Yes 5% Silty Sub Conc. 10YR 8/6 7/2 Concentrations clay angular loam blocky 20+ 10YR Yes 10% Clay Sub Conc. 10YR 7/8 6/2 Concentrations loam angular Blocky Soil Profile: j/C# ',f 4. t 1 1 rT�f 2 u' *Ni. A 33 7 uVoio< 4. I:I: � ' .\ \., I �.... r � I, fff��� 4 �: :r p ift�I ,/'j r a t av a si .. . — 1 \�, t. ' 3,. N . `�Y' ?'sign., a a, 3 , 1 o ..T. -r i y !j �\ - h gg g et A / , - �IY � r Cowford Mitigation Project Soil Profile Sampling Soil Sample ID: GW4 Staff: Ryan Medric and Heath Hidlay Date: November 2, 2021 Horizon (in.) Color Redox Redox Texture Structure Consistency Notes Percent 0-9 10YR No Silt Granular 3/2 loam 9-21 10YR Yes 15% Clay Sub Conc. 10YR 6/8 6/4 Concentrations/ loam angular Dep. 10YR 7/1 depletions blocky 21+ 6/1 Concentrations 10YR Yes 30% Clay Blocky Conc. 10YR 5/8 loam Soil Profile: '1y`'a ylk lax �$. - �l 5 . . �' . / `. ""-',Pt;:-. �A. 1 ✓ y s F`� raja O".j.7 7'' r " it. 1 `E..--:,`::!-Tate .,y.rc,� 1 F - yea C;vd'3"+$� 'Z,�... '-:.', '.' .-- -,;.z..-- -73.-1-,-,-,,,A, !.,-37:.-3.-...zr 4.'1.„4.,. iit. r -.'., •---',, .-',, , - -Tv'-,:;=*"0:-.17a-.:,,v,,,ir...e,:t- .... .. .._—7 ---.Lf--."::--..i=...,. _ - , : - .- _,`J '-~ --% - • - .-,- 1,4Fiig.,4,----4,,'`...,-,..;._ '-1--4-,.1,--i-Alw, I - � p, ik tyR k _ 3 • '€ - cw s. -1 1 f x � T ti �� s , t f r �!-, A ,'r � zm " t '�+^ ' r � o rc} jf \N R 6w. � , , ,M,Al. .'\i, � I / - F aT • xJ .x el. ,,.f v ., t r .h r "' ' . Ss ,--- - - . foir - 1,- 40, 4,. .. -rt `1 - ` s.. #.. p � tz .� " s ati z--v; Kio `vit ¢ x� *E v d° L4� %-f s 'v . - .` .' ` iY a v a L_ w S1 k , „.a 4e .; s 5 ra y . K' v • ✓ , r cl 1 da 4 . t- - . _ �1, '' ' g •yti #it-/ -'r ..14 d �r '3r ' s �e`r .:. � rr1!. , , at �A�� r , �� � r i_ii... ,. t� ! -'$y' +� A w Cowford Mitigation Project Soil Profile Sampling Soil Sample ID: GW5 Staff: Ryan Medric and Heath Hidlay Date: November 2, 2021 Horizon (in.) Color Redox Redox Texture Structure Consistency Notes Percent 0-9 10YR No Silt Granular 3/2 loam 9-15 10YR No Silty Sub- 5/2 clay angular loam blocky 15-20 10YR Yes 10% Silty Sub- Conc. 10YR 8/6 4/3 Concentrations/ clay angular Dep. 10YR 7/2 Depletions loam blocky 20+ 10YR Yes 25% Clay Blocky Conc. 10YR 7/6 6/1 Concentrations Loam Soil Profile: � ;- r� F i - y. _ 1 , " .fit F ram, +`by � p 3 A a z, - . -." ,..4% s. ,:‘,.. 4„, - .. ,, ... . . _ ,.„,,t,,f,000..,,x- ,, _ „,-,,,,,;„ 4 . __..---,- - , ..: . ..,„, ,- . ,,„,„.„....„, s_. fit.. Y., } y „�=,. ., . . . ...„.„ ..,,,,,, w .., ,_ . , ._ , , vp • -i ,' F kM'4; �y �GiJ ' :!\.• .;4." -,..!':',.,:t41' ' 1,-::-•4:14=-:1,c.t. - -4.,,.:, ,;.-..-- 2,-_ _,N .. ,, _ . ,_ ..,,,,, ,_,..„.,,,,,„..„,r .,,,,, v,„,„,„:„.,,„:,,,.....„---, . .. . ,....,,,,, , ,,,,... --__ „,,47.,- .'QCrtC64W"{,21.".' '-‘ ' "' '' « " i -A ,� I - 't :,,,,r2.4,...f:-.' • I. _ I ' ,410 /4 . \�y s sad-: fr �.� „ a „ % .1 . r a Vim_ Summary of Groundwater Monitoring Results Cowford Well ID Wetland ID Ground Elevation (ft) Hydroperiod (%) Pre Con (2020) Pre Con (2021) Year 1 (2022) Year 2 (2023) Year 3 (2024) Year 4 (2025) Year 5 (2026) Year 6 (2027) Year 7 (2028) GW1 WA 62.30 1.00 0.00 GW2 WA GW3 WA GW4 WA GW5 WA