Tar-Pamlico Tar-Pamlico Watershed Assessment Watershed Assessment
Proposed Water QualityImprovement Projects
• Improvement project types• Model scenarios• Targeted projects• Stakeholder input
Improvement Project Types
• Stream restoration• Wetland restoration• Riparian buffers (woody & herbaceous)• BMPs (stormwater wetland, bioretention, swales)
Crisp Creek Proposed Improvement Projects
• 24 Riparian Buffer Projects
• 3 Stream Restoration Projects
• 11 Wetland Restoration Projects
Hendricks CreekProposedImprovementProjects
• 7 Riparian Buffer Projects
• 8 Stream Restoration Projects
• 3 Wetland Restoration Projects
• 7 BMPs
Green Mill Run – Proposed Improvement Projects
• 8 Riparian Buffer Projects• 2 Wetland Restoration/Enhancement Projects• 2 Stream Restoration/Channel Improvement Projects• 7 BMPs
Cow Swamp Proposed Improvement Projects
• 21 Riparian Buffer Projects• 6 Swale Projects• 3 Stream Restoration Projects• 5 Wetland Restoration Projects
Project Pollutant Removal
GMR Public ≤ 3 owners All Projects
TSS 0% 7% 14%
P 7% 27% 51%
N 1% 22% 25%
HDK Public ≤ 3 owners All Projects
TSS 2% 12% 77%
P 3% 8% 79%
N 5% 12% 37%
Project Pollutant RemovalCOW Public ≤ 3 owners All Projects
TSS - 23% 73%
P - 23% 71%
N - 19% 55%
CSP Public ≤ 3 owners All Projects
TSS - * 45%
P - * 57%
N - * 40%* Martin County parcel data was not available at time of modeling
Targeted ProposedImprovement Projects
Crisp - Project 17 Buffers & Wetland Restoration
Wetland Restoration
Buffers
EdgecombeMartin
County Line Property
Crisp CreekProject 17Wetland Restoration
• Stream network is ditched• Little existing woody riparian vegetation• NCCREWS depicted area as potential wetland restoration• Up to 88 acres of wetland restoration proposed• 6,450 linear feet of woody buffer proposed• Constraints: some area is under drainage district jurisdiction
Crisp Creek Project 5 Wetland Restoration
5. WetlandRestoration Existing W
etland
Project 8 Project 6
Project 7
Crisp CreekProject 5Wetland Restoration
• Project would expand existing wetland • NCCREWS depicts area as wetland restoration potential• 40 acres of wetland restoration proposed• Constraints: loss of cropland
Hendricks Project 4Stream Restoration
4. Stream Restoration
Project 5.Stream Restoration
Project 3.Stormwater Wetland
Hilma Country Club
Redevelopment Commission of Tarboro
Town of Tarboro
Town of Tarboro
Hendricks CreekProject 4Stream Restoration
• Eroding banks, invasive and exotic riparian vegetation
• 3,250 linear feet of stream restoration proposed on Hendricks Creek
• Constraints: existing sewer line and multiple property owners
Hendricks Project 13Stream Restoration
Stream RestorationPhase I
Tarboro High School(Edgecombe County Board of Education)
Edgecombe County
Board of Education
Braswell Center(Town of Tarboro)
Hendricks CreekProject 13Stream Restoration
• Eroding banks and thin riparian buffers• Stream Restoration -Phase I: 1,340 linear feet Phase II: 1,800 linear feet• Constraints: existing sewer line and multiple property owners
Hendricks Project 5Stream Restoration
HilmaCountry Club
Hendricks Creek - Project 5Stream Restoration
• Stream is slightly incised with severely eroding banks
• Riparian buffer is narrow with invasive species
• 2,290 linear feet of stream restoration proposed
• Project would extend previous NRCS stream restoration project at Western Boulevard
• Constraints: existing large trees and stormwater inputs
Green Mill Run Project 1Bank Stability &Stream Restoration
City of GreenvilleGreen Springs Park
Bank Stability & Stream Restoration
10th St
Stormwater Wetlands
State of NCWahl-Coats School
Green Mill RunProject 1Bank Stability andStream Restoration
• Eroding banks, poor habitat• Stormwater wetlands proposed• 2,640 linear feet of stream channel improvement proposed• Constraints: steep banks, artificial hardening, limited space, existing infrastructure
Green Mill RunProject 8Riparian Buffers
Project 7. GreenvilleCountry Club(In progress)
Green Mill Run - Project 8Riparian Buffers
• 1,800 linear feet of woody riparian buffers proposed
• Project would treat runoff from cropland before it enters the Greenville Country Club stream restoration project
• Constraint: loss of cropland
Green Mill Run Projects 15&16 Riparian Buffers
15. Buffers
16. Buffers
Green Mill RunProjects 15 & 16Riparian Buffers
• Urbanizing quickly, needs buffer before there is no space left• 6,950 linear feet of woody riparian buffers proposed• Constraints: multiple property owners, current residential development activities
Cow SwampProject 2Stream Restoration
StreamRestoration
Swale
Swale
Cow Swamp - Project 2Stream Restoration and Swales
• 3,010 linear feet of stream restoration proposed; 1,430 linear feet of swales proposed
• Stream is currently incised with practically no riparian buffer
• Constraint: loss of cropland
Cow Swamp Project 25 Stream Restoration
25. StreamRestoration
Project 14
Cow SwampProject 25StreamRestoration
• Photo shows downstream incision in channel (near confluence with Cross Swamp)• 1,850 linear feet of stream restoration proposed• Constraints: loss of cropland
Cow Swamp Project 27 Wetland Restoration
26. Wetland Restoration
27. Wetland 27. Wetland Restoration &Restoration &BuffersBuffers
Cow SwampProject 27Wetland Restoration& Riparian Buffers
• 7 acres of wetland restoration proposed
• 4,640 linear feet of woody riparian buffers proposed
• Constraints: loss of cropland
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