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HomeMy WebLinkAbout20120102 Ver 1_Year 6 Monitoring Report_2019_20200319ID#* 20120102 Version* 1 Select Reviewer:* Mac Haupt Initial Review Completed Date 03/19/2020 Mitigation Project Submittal - 3/19/2020 Is this a Prospectus, Technical Proposal or a New Site?* r Yes r No Type of Mitigation Project:* V Stream r Wetlands r- Buffer r- Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* Melonie Allen Project Information .................................................................................................................................................................. ID#:* 20120102 Existing IDY Project Type: r DMS r Mitigation Bank Project Name: Byrds Creek Mitigation Site County: Person Document Information Email Address:* melonie.allen@ncdenr.gov Version: *1 Existing Version Mitigation Document Type:* Mitigation Monitoring Report File Upload: Byrds Creek_ 95020_MY6_2019.pdf 9.15MB Rease upload only one RDFcf the conplete file that needs to be subnitted... Signature Print Name:* Melonie Allen Signature:* SUPPLEMENTAL CLOSEOUT REPORT FINAL BYRDS CREEK MITIGATION SITE Person County, NC NCDEQ Contract 003987 DMS Project Number 95020 USACE Action ID Number 2012-00230 NCDWR Project Number 2012-0102 Data Collection Period: January - November 2019 Draft Submission Date: March 10, 2020 Final Submission Date: March 19, 2020 PREPARED FOR: NC Department of Environment Quality Division of Mitigation Services 1652 Mail Service Center Raleigh, NC 27699-1652 PREPARED BY: Wildlands Engineering, Inc. 312 West Millbrook Road, Suite 225 Raleigh, NC 27609 Jason Lorch jlorch@wildlandseng.com Phone: 919.851.9986 Byrds Creek Mitigation Site Supplemental Closeout Report – FINAL 1 Section 1: Introduction This information is provided to address concerns from the Interagency Review Team (IRT) during the Byrds Creek Mitigation Site closeout walk. In March 2019, Wildlands submitted a closeout report for Byrds Creek and completed the closeout site walk on March 28, 2019. While the site has met success criteria and was on track to closeout at the end of monitoring year 5, fifteen bankfull events occurred on Byrds Creek from October 2018 to March 2019 (including two caused by Hurricanes). These events knocked over floodplain vegetation and caused areas of isolated streambank erosion. To ensure the site is stable and will be able to handle such events, the IRT requested bank stabilization in the damaged areas, live stake planting where needed, and additional tree planting on the floodplain in areas of low stem density. Section 2: Supplemental Vegetation Planting Following comments by the IRT in March 2019, Wildlands Engineering contracted Native Roots, LLC to plant black willow (Salix nigra) live stakes along Byrds Creek in areas that contained few surviving live stakes. Live stakes were planted at 3 foot spacing along pools and 6 foot spacing along riffles of Byrds Creek (Figure 1). Three hundred trees were planted throughout a total of 3.09 acres with low stem density (Figure 1). All planted trees were three-gallon container stock and approximately five feet tall. Species included sycamore (Platanus occidentalis), river birch (Betula nigra), green ash (Fraxinus pennsylvanica), willow oak (Quercus phellos), and tulip poplar (Liriodendron tulipifera). In November 2019, eight 100 square meter vegetation plots and one 50 square meter plot was surveyed by Wildlands Engineering staff (Figure 1). Plots were randomly located within the areas of supplemental planting. All trees within the plots were identified and measured, including volunteer species. Stem density ranged from 526 trees per acre (Random Vegetation Plot 4) to 4,128 stems per acre (Random Vegetation Plot 1). All random vegetation plots exceeded the required 260 stems per acre at year 5. For more information on species and stem counts, refer to Table 1 and random vegetation plot photographs in Appendix 1. Section 3: Supplemental Stream Stabilization During August 2019 one bend on Byrds Creek Reach 1 and three isolated areas along West Branch were repaired using an excavator. The outside of a bend along Byrds Creek Reach 1 (enhancement II) had scoured the previous fall/winter during several large storm events, including two hurricanes. The bank along this bend was graded, matted, sod mats were installed, and live stakes were planted. On West Branch (enhancement II), three areas experienced bank scour on the outside of bends. These areas were lined with rock, filled with dirt, and planted with live stakes. These repairs were stable during January of 2020. Photographs of the repaired areas are in Appendix 1. Section 4: Conclusion In summary, three hundred containerized trees were planted throughout 3.09 acres with low stem density, and live stakes were replanted along the majority of Byrds Creek. Random vegetation plot data and visual observation indicate stem density is well above the 260 stems per acre minimum and herbaceous vegetation is abundant. Isolated streambank erosion has been stabilized through grading, sod mat installation, and live stake planting. All IRT concerns have been addressed and Wildlands believes the Byrds Creek Mitigation Site is stable and ready for closeout. APPENDIX 1 Figure 1. Supplem ental Closeout Map Byrds Creek Mitigation SiteDMS Project No. 95020 Person County, NCByrds Creek Reach 1Byr ds Cr eek Reach 2Byrds Creek Reach 3 Byrds Creek Reach 4W est B ran ch SE Branch Reach 1 SE Branch Reach 2a SE Branch Reach 2b South Branch2 1 4 85 6 7 3 9 0 150 300 Feet 2017 Aerial Photography Conservation Easement Stream Repair Work Live Stake Replanting Containerized Tree Replanting Random Vegetation Plots Criterion Met Project Streams Stream Restorat ion Stream Enhancement I Stream Enhancement II Stream Restorat ion (No Credit) DMS Project No. 95020BufferNitrogen Nutrient OffsetType R RE R RE R RETotals 5,371 0 N/A N/A N/A N/A N/A N/AAs-Built Stationing / Location (LF)Existing Footage (LF) / Acreage (Ac)ApproachMitigation RatioCredits (SMU / WMU)10+00-16+43 643 N/A2.5:1 25716+43-32+89 1,630 N/A1.5:1 1,09732+89-34+05 34+64-47+551,368 Priority 11:1 1,40747+55-55+51 796 N/A2.5:1 31860+00-66+48 67+08-70+69976 Priority 11:1 1,00980+00-84+85 916 Priority 11:1 48585+88-91+24 524 N/A1.5:1 35791+24-93+19 50 Priority 11:1 195100+00-106+11 611 N/A2.5:1 244Buffer(square feet)Riverine Non-Riverine- --- --- -- -- -Table 1. Project Components and Mitigation CreditsByrds Creek Mitigation SiteMitigation CreditsStream Riparian Wetland Non-Riparian WetlandPhosphorous Nutrient OffsetN/AProject ComponentsReach IDRestoration or Restoration EquivalentRestoration Footage (LF) / Acreage (Ac)BC1Enhancement Level II 643BC2Enhancement Level I 1,646StreamsBC3Restoration 1,407BC4Enhancement Level II 796SB1Restoration 1,009SE1Restoration 485SE2aEnhancement Level I 536SE2bRestoration 195WB1Enhancement Level II 611Restoration LevelStream(linear feet)Riparian Wetland (acres)Non-Riparian Wetland (acres)Upland (acres)Component SummationRestoration3,096--Enhancement----Enhancement I2,182Enhancement II2,050High Quality Preservation ---Creation-Preservation - Table 2. Random Vegetation Plots: Stem Density of Re-planted AreasByrds Creek Mitigation SiteDMS Project No. 95020Te Total Te Total Te Total Te Total Te TotalAcer negundoBoxelder Tree2 2Acer rubrumRed MapleTree4 4 2 22 2Betula nigraRiver BirchTree50 50 1 1 2 2 1 1Carpinus carolinianaAmerican HornbeamTree1 1Fagus grandifoliaAmerican BeechTreeFraxinus pennsylvanicaGreen AshTree1 1 2 2 2 2 6 6Juglans nigraBlack WalnutTree2 2 2 2Juniperus virginianaEastern Red CedarTree4 44 4Liquidambar styracifluaSweet GumTree15 15 1 1 1 1 57 57Liriodendron tulipiferaTulip PoplarTree11 11 8 8 1 1 1 1Pinus taedaLoblolly PineTree1 1Platanus occidentalisSycamoreTree1 1 1 1 3 3 5 5 1 1Prunus serotinaBlack CherryTree2 2Quercus michauxiiSwamp Chestnut OakTreeQuercus rubraNorthern Red OakTree1 1Quercus phellosWillow OakTree10 10 1 1 3 3 3 3Ulmus alataWinged ElmTree1 1 7 7Ulmus americanaAmerican ElmTree3 3103 102 20 20 15 15 13 13 75 7512 11 6 6 8 8 6 6 8 84,1684,1288098096076075265263,0353,035Color for DensityExceeds requirements by 10%Exceeds requirements, but by less than 10%Fails to meet requirements, by less than 10%Fails to meet requirements by more than 10%Te - Number of stems including pinesTotal - Number of stems excluding pinesSpecies countStems per ACRERandom VP 1Random VP 2 Random VP 3Scientific Name Common NameSpecies TypeStem countsize (ares)size (ACRES)10.02 0.021Random VP 4 Random VP 5Current Plot Data (2019)10.0210.0210.02 Table 2. Random Vegetation Plots: Stem Density of Re-planted AreasByrds Creek Mitigation SiteDMS Project No. 95020Acer negundoBoxelder TreeAcer rubrumRed MapleTreeBetula nigraRiver BirchTreeCarpinus carolinianaAmerican HornbeamTreeFagus grandifoliaAmerican BeechTreeFraxinus pennsylvanicaGreen AshTreeJuglans nigraBlack WalnutTreeJuniperus virginianaEastern Red CedarTreeLiquidambar styracifluaSweet GumTreeLiriodendron tulipiferaTulip PoplarTreePinus taedaLoblolly PineTreePlatanus occidentalisSycamoreTreePrunus serotinaBlack CherryTreeQuercus michauxiiSwamp Chestnut OakTreeQuercus rubraNorthern Red OakTreeQuercus phellosWillow OakTreeUlmus alataWinged ElmTreeUlmus americanaAmerican ElmTreeColor for DensityExceeds requirements by 10%Exceeds requirements, but by less than 10%Fails to meet requirements, by less than 10%Fails to meet requirements by more than 10%Te - Number of stems including pinesTotal - Number of stems excluding pinesSpecies countStems per ACREScientific Name Common NameSpecies TypeStem countsize (ares)size (ACRES)Te Total Te Total Te Total Te Total Te Total2 21 1 4 4 1 1 14 141 1 3 3 58 581 11 1 1 16 6 2 2 1 1 20 201 1 5 53 3 9 9 2 2 22 2240 40 7 7 32 32 12 12 165 1651 1 1 1 4 4 27 271 1 3 3 54 4 2 2 2 2 12 12 31 3122 22 23 34 44 4 2 2 2 2 25 258 83 364 63 16 16 59 56 30 30 395 38810 9 6 6 9 8 6 6 18 182,5902,5506476472,3882,2662,4282,4281,8811,8470.02Annual MeansMY5 (2019)8.50.21Random VP 90.50.01Current Plot Data (2019)Random VP 80.021Random VP 710.02Random VP 61 RANDOM VEGETATION PLOT PHOTOGRAPHS Byrds Creek Mitigation Site Random Vegetation Plot Photographs RANDOM VEG PLOT 1 (11/14/2019) RANDOM VEG PLOT 2 (11/14/2019) RANDOM VEG PLOT 3 (11/14/2019) RANDOM VEG PLOT 4 (11/14/2019) RANDOM VEG PLOT 5 (11/14/2019) RANDOM VEG PLOT 6 (11/14/2019) Byrds Creek Mitigation Site Random Vegetation Plot Photographs RANDOM VEG PLOT 7 (11/14/2019) RANDOM VEG PLOT 8 (11/14/2019) RANDOM VEG PLOT 9 (11/14/2019) STREAM REPAIR PHOTOGRAPHS Byrds Creek Mitigation Site Stream Repair Photographs Byrds Creek Reach 1 (2/28/2019) Byrds Creek Reach 1 (12/12/2019) WEST BRANCH (11/20/2018) WEST BRANCH (1/22/2020) WEST BRANCH (11/20/2018) WEST BRANCH (1/22/2020) Byrds Creek Mitigation Site Stream Repair Photographs WEST BRANCH (11/20/2018) WEST BRANCH (1/22/2020)