Chapel Creek Stream Restoration Project Orange County, North ...
Chapel Creek Stream Restoration Project Orange County, North Carolina EEP Project #77
MY-01 Monitoring Report - Final Data Collected: September 2009 Submitted: December 1, 2009
Prepared for: North Carolina Department of Environment and Natural Resources Ecosystem Enhancement Program Parker Lincoln Building 2728 Capital Boulevard, Suite 1H-103 Raleigh, NC 27606
Chapel Creek Stream Restoration EEP Project #77 Chapel Hill, North Carolina Orange County
MY-01 Monitoring Report - Final Prepared By:
Ward Consulting Engineers, P.C. Project Manager: Becky Ward, P.E. 8386 Six Forks Road, Suite 101 Raleigh, NC 27615-5088 Ph: 919-870-0526 Fax: 919-870-5359
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Year 1 Monitoring Report-FINAL Year 1 of 5 December 2009
TABLE OF CONTENTS I. Executive Summary ................................................................................................................ 1 II. Methodology ........................................................................................................................... 2 A. Vegetation Methodologies .................................................................................................. 2 B. Stream Methodologies ........................................................................................................ 2 III. References........................................................................................................................... 3 APPENDICES Appendix A. General Figures and Plan Views .............................................................................. 4 Figure 1A. Vicinity Map.................................................................................................... 5 Figure 2. Consolidated Current Condition Plan View ....................................................... 6 Appendix B. General Projects Tables............................................................................................ 7 Table 1. Project Restoration Components ......................................................................... 8 Table 2. Project Activity and Reporting History ............................................................... 8 Table 3. Project Contacts Table ......................................................................................... 9 Table 4. Project Attribute Table....................................................................................... 10 Appendix C. Vegetation Assessment Data .................................................................................. 11 Photo 1. Vegetation Plot 1 ............................................................................................... 12 Photo 2. Vegetation Plot 2 ............................................................................................... 12 Photo 3. Vegetation Plot 3 ............................................................................................... 13 Photo 4. Vegetation Plot 4 ............................................................................................... 13 Table 5. Stem Count Total and Planted by Plot and Species........................................... 14 Appendix D. Stream Assessment Data ........................................................................................ 15 Photo 5. Looking downstream at XS-1........................................................................... 16 Photo 6. Looking downstream at XS-2............................................................................ 16 Photo 7. Looking downstream at XS-3............................................................................ 17 Photo 8. Looking downstream at XS-4............................................................................ 17 Photo 9. Looking downstream at XS-5............................................................................ 18 Table 6. Visual Morphological Stability Assessment...................................................... 19 Table 7. Verification of Bankfull Events......................................................................... 20 Figure 3. Cross-Section 1................................................................................................. 21 Figure 4. Cross-Section 2................................................................................................. 22 Figure 5. Cross-Section 3................................................................................................. 23 Figure 6. Cross-Section 4................................................................................................. 24 Figure 7. Cross-Section 5................................................................................................. 25 Figure 8. Longitudinal Profile.......................................................................................... 26 Figure 9. Pebble Count Plots – XS-1 ............................................................................... 27 Figure 10. Pebble Count Plots – XS-2 ............................................................................. 28 Figure 11. Pebble Count Plots – XS-4 ............................................................................. 29 Figure 12. Pebble Count Plots – XS-5 ............................................................................. 29
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I.
Executive Summary
The North Carolina Ecosystem Enhancement Program (EEP) has completed a stream restoration project along approximately 1,350 linear feet of Chapel Creek, located on University of North Carolina property in Chapel Hill, Orange County, North Carolina. The project is located in the Morgan Creek Local Watershed planning area, within the 14-digit HUC 03030002060080. The drainage area for Chapel Creek is approximately 0.42 square miles at the downstream limit of the project where a drainage channel through the A.E. Finley Golf Course flows into Chapel Creek. The land use in the watershed consists of University of North Carolina facilities, single family residential, elementary schools, roadways, and forested land. The Morgan Creek LWP noted water quality degradation and impaired biological community in the watershed and identified major watershed stressors as: streambank erosion, excess stormwater runoff, and disturbed riparian buffers. The goals of the restoration project are to improve water quality in Chapel Creek and the Cape Fear river basin by: • • • • •
Channel restoration of pattern, profile, and dimension for approximately 960 linear feet of Chapel Creek. Channel enhancement/stabilization for approximately 330 feet with a Priority Two restoration approach, bankfull bench and stream bank repairs. Restore reach to a stable stream channel, capable of transporting flows and sediment load efficiently. Improve aquatic habitat by planting trees along the banks in the cleared section to increase shade and adding more sinuosity to create more pool and riffle sections. Reduce sediment inputs to the stream from bank erosion by re-vegetating the banks.
The new CVS-EEP protocol was not administered for monitoring year one. Four vegetation monitoring plots were monitored and only planted stems were counted to monitor success criteria. Currently, 769 planted stems per acre are succeeding within the conservation easement. The success criteria of the planted woody species are the survival of 320 stems/acre after monitoring year three (MY3). A mortality rate of ten percent will be allowed after MY4 (288 stems/acre), with another ten percent mortality rate allowed after MY5 requiring a minimum of 260 stems/acre. Herbaceous species such as dog fennel (Eupatorium capillifolium), horseweed (Erigeron canadensis), tickseed (Bidens sp.), seedbox (Ludwigia sp.), smartweed (Persicaria sp.), common rush (Juncus sp.), sedges (Carex sp.), and various grasses, are present throughout the conservation easement. Woody species observed that were not planted include easterm red cedar (Juniperus virginiana), loblolly pine (Pinus taeda), silverling (Baccharis halimifolia), sycamore (Platanus occidentalis), green ash (Fraxinus pennsylvanica), tulip poplar (Liriodendron tulipifera), sweetgum (Liquidambar styraciflua), hickory (Carya sp.), hazelnut (Corylus americana), willow oak (Quercus phellos), black willow (Salix nigra), and tag alder (Alnus serrulata). Invasive exotics observed include Japanese honeysuckle (Lonicera japonica), Japanese stiltgrass (Microstegium vimineum), autumn olive (Elaeagnus umbellata), multiflora rose (Rosa multiflora), and Chinese privet (Ligustrum sinense). According to the NC Native Plant Society all of these species are classified as Rank 1 “Severe Threat” species which is defined as exotic plant species that have invasive characteristics and spread readily into native plant communities, Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
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displacing native vegetation. Although these species have been given this rank, the functionality of the project is not expected to be impaired significantly. The vegetation problem areas consist of invasive exotic species present within the conservation easement. See Table - for vegetation problem area descriptions and figure – for their locations. See section - of Appendix - for representative photos of the vegetation problem areas observed within the conservation easement of Chapel Creek. The channel and banks of the restoration project are stable when compared to MY-00. There are not any negligible changes in pattern, profile or dimension between the monitoring years. The riffle pebble counts are trending slightly finer, but this is to be expected as the larger substrate in constructed riffles picks up some sediment deposition. A few problem areas were noted in the banks, but these do not appear to be further degrading and will likely continue to stabilize as vegetation is established. Summary information/data related to the occurrence of items and statistics related to performance of various project and monitoring elements, can be found in the tables and figures in the report appendices. Narrative background and supporting information formally found in these reports can be found in the mitigation and restoration plan documents available on EEP’s website. All raw data supporting the tables and figures in the appendices is available from EEP upon request.
II. Methodology Methodologies follow EEP monitoring report template Version 1.2.1 (06/01/09) and guidelines (Lee et al 2008). Photos were taken with a digital camera. A Trimble Geo XT handheld unit with sub-meter accuracy was used to collect vegetation monitoring plot origins, and problem area locations. Cross sectional and longitudinal surveys were conducted using total station survey equipment. Data was entered into AutoCAD Civil3D to obtain dimensions of the cross sections and parameters applicable to the longitudinal profile. Reports were then generated to display summaries of the stream survey.
A. Vegetation Methodologies A total of four 100m² vegetation monitoring plots were established during as built data collection. VP1, VP3, and VP4 are 20m x 5m plots and VP2 is a 10m x 10m plot. Planted stems within each plot were identified and counted to determine the number of stems/acre. Data collected for these plots are in Appendix C. The CVS-EEP protocol was not implemented for this project
B. Stream Methodologies Stream profile and cross-sections were surveyed using total station equipment and methods. The survey data was plotted using AutoCAD Civil3D. The longitudinal profile was generated using the MY-02 alignment. Cross sectional data was extracted based on a linear alignment between the end pins.
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III. References Miller, James H. 2003. Nonnative invasive plants of southern forests: a field guide for identification and control. Gen. Tech. Rep. SRS–62. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 93 p. Weakley, Alan (2006). Flora of the Carolinas, Virginia, Georgia, and Surrounding Areas. http://www.herbarium.unc.edu/flora.htm.
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
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Appendix A. General Figures and Plan Views
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
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Cross Section Pin Coordinate Cross Section Left Pin Number Northing Easting 1 784445.1 1991725.0 2 784371.4 1991918.4 3 784355.6 1991952.4 4 784268.3 1992192.8 5 784072.4 1992318.0
Table (NAD83) Right Pin Northing Easting 784315.4 1991615.7 784280.9 1991815.1 784249.4 1991915.3 784192.1 1992194.8 784060.4 1992271.5
Vegetation Plot Pin Coordinate Table (NAD83) Vegetation Pin 1 Pin 2 Pin 3 Plot Number Northing Easting Northing Easting Northing Easting 1 784445.7 1991562.8 784429.7 1991560.5 784422.8 1991625.7 2 784319.4 1991786.6 784320.5 1991819.2 784286.9 1991787.1 3 784216.3 1992146.0 784249.9 1992211.3 784200.0 1992154.8 4 784015.2 1992316.7 784024.2 1992330.8 783969.2 1992366.4
Pin 4 Northing Easting 784438.7 1991627.9 784287.1 1991819.9 784203.7 1992211.7 783960.4 1992353.1
Appendix B. General Projects Tables
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
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Table 1. Project Restoration Components Table 1. Project Restoration Components Chapel Creek Stream Restoration-Project No. 77 Project Segment Reach I.D.
Existing Mitigation Linear Mitigation Mitigation Approach Stationing Feet Type Feet Ratio Units
Reach I
957
Reach II
356
Priority 1
961
1
961
0+00 to 9+94
Enhancement Priority 3 II
330
1.5
220
9+94 to 13+50
Restoration
Mitigation Unit Summations Riparian Wetland Stream (lf) (Ac) 1181 0
Nonriparian Wetland (Ac) 0
Comments Includes 900 lf of channel relocation Instream Structure and Vegetated Buffers
Total Wetland(Ac) Buffer (Ac) 0
Comment
1.2
Table 2. Project Activity and Reporting History Table 2. Project Activity and Reporting History Chapel Creek Stream Restoration-Project No. 77 Data Collection Complete
Activity or Reporting Restoration Plan Final Design – Construction Plans Construction Temporary S&E mix applied to entire project area Permanent seed mix applied to enitre project area Repairs to stream due to damages from storm events Temporary S&E mix applied to area disturbed by repairs Permanent seed mix applied to area disturbed by repairs Containerized and B&B plantings for entire reach Mitigation Plan / As-built (Year 0 Monitoring – baseline) Year 1 Monitoring Year 2 Monitoring Year 3 Monitoring Year 4 Monitoring Year 5 Monitoring Year 5+ Monitoring
Mar-09 Sept-09
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Actual Completion Date Aug-06 Jun-07 Jul-08 Jul-08 Jul-08 Mar-09 Mar-09 Mar-09 Mar-09 Mar-09 Nov-09
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Table 3. Project Contacts Table Table 3. Project Contacts Table Chapel Creek Stream Restoration - Project No. 77 Ward Consulting Engineers, P.C. 8386 Six Forks Road Suite 101 Raleigh, NC 27615-5088 Primary project design POC Becky Ward 919-870-0526 Designer
River Works, Inc. 800 Regency Parkway, Suite 200 Cary, NC 27518 Construction contractor POC Will Pederson 919-459-9001 Construction Contractor
Survey Contractor
Level Cross Surveying, PLLC (all surveying) 668 Marsh County Lane Randleman, NC 27317
Survey contractor POC
Sherie Willard 336-495-1713
Planting Contractor
River Works, Inc. 800 Regency Parkway, Suite 200 Cary, NC 27518
Planting contractor POC
Will Pederson 919-459-9001
Seeding Contractor
River Works, Inc. 800 Regency Parkway, Suite 200 Cary, NC 27518 Will Pederson 919-459-9001 Green Resource 336-855-6363 Mellow Marsh Farm, Inc. 919-742-1200 Cure Nursery 919-542-6186
Contractor point of contact Seed Mix Sources Nursery Stock Suppliers Monitoring Performers
Ward Consulting Engineers, P.C. 8386 Six Forks Road Suite 101 Raleigh, NC 27615-5088
Stream Monitoring POC
Robert Langager 919-870-0526
Vegetation Monitoring POC
Chris Sheats - The Catena Group - 919-732-1300
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Table 4. Project Attribute Table Table 4. Project Background Table Chapel Creek Stream Restoration Site-Project No. 77 Project County Drainage Area Drainage impervious surface cover estimate (%) Stream Order Physiographic Region Ecoregion Rosgen Classification of As-Built Cowardin Classification Dominant Soil Types Reference Site ID USGS HUC for Project USGS HUC for Reference NCDWQ Sub-basin for Project NCDWQ Sub-basin for Reference Reach NCDWQ Classification for Project NCDWQ Classification for Reference Is any portion of any project segment 303D listed? Is any portion of any project segment upstream of a 303D listed segment? Reasons for 303D listing or stressor % of project easement fenced
Orange 0.42 square miles < 5% 2 Piedmont (Triassic Basin) Central Piedmont C4 Riverine Chewacla Cabin Branch 03030002 03020201 03-06-06 03-04-01 WS-IV;NSW WS-IV;NSW No Yes Standard Violation 0%
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Appendix C. Vegetation Assessment Data
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Vegetation Monitoring Plots Photos
Photo 1. Vegetation Plot 1
Photo 2. Vegetation Plot 2 Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
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Photo 3. Vegetation Plot 3
Photo 4. Vegetation Plot 4
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Table 5. Chapel Creek MY-01 Vegetation Plot Stem Counts Scientific Name
Common Name
Magnolia virginiana Rosa palustris Rhododendron viscosum Viburnum cassinoides Hibiscus moscheutos Vaccinium corymbosum Diospyros virginiana Lindera benzoin Quercus nigra Carpinus caroliniana Betula nigra Fraxinus pennsylvanica Platanus occidentalis Calycanthus floridus Hamamelis virgniniana Viburnum dentatum Viburnum nudum Cornus amomum Xanthorhiza simplicissima Cephalanthus occidentalis
Sweetbay Magnolia Swamp Rose Swamp Azalea Northern Wild Raisin Eastern Rose Mallow Highbush Blueberry American Persimmon Spicebush Water Oak Ironwood River Birch Green Ash Sycamore Sweet-shrub Witch-hazel Mapleleaf Viburnum Possumhaw Silky Dogwood Brook-feather Buttonbush
1 3 5
2 1 1
Plot* 2 3
3
3 5
5 2
2 2 3 6 5
1
3
1 2 4 3
1
13
4
2
4
15
4 2 1 27
21
Total 3 5 0 0 2 1 7 7 3 3 13 11 3 4 0 7 0 4 2 1 76
Total
Table 5. Stem Count Total and Planted by Plot and Species
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Appendix D. Stream Assessment Data
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Stream Station Photos
Photo 5. Looking downstream at XS-1
Photo 6. Looking downstream at XS-2
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Photo 7. Looking downstream at XS-3
Photo 8. Looking downstream at XS-4
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Photo 9. Looking downstream at XS-5
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Table 6. Visual Morphological Stability Assessment Table 6. Visual Morphological Stability Assessment Chapel Creek Stream Restoration-Project N0. 77 Reach 1 (Restoration): (961 feet)
Feature Category A. Riffles
B. Pools
C. Thalweg
D. Meanders
(# Stable) Number Performing as Intended 18
Total number per As-built 18
Total Number / feet in unstable state NA
% Perform in Stable Condition 100%
2. Armor stable (e.g.no displacement?)
18
18
NA
100%
3. Facet grade appears stable?
17
18
NA
94%
4. Minimal evidence of embedding/fining?
18
18
NA
100%
5. Length appropriate?
17
18
NA
94%
17
17
NA
100%
17
17
NA
100%
17
17
NA
100%
18
18
NA
100%
18
18
NA
100%
12
17
NA
71%
1
5
NA
20%
Metric (per As-built and reference baselines) 1. Present?
1. Present? (e.g. not subject to severe aggrad. Or migrat.?) 2. Sufficiently deep (Max. Pool D:Mean Bkf>1.6?) 3. Length appropriate? 1. Upstream of meander bend (run/inflection) centering? 2. Downstream of meander (glide/inflection) centering? 1. Outer bend in state of limited/controlled erosion? 2. Of those eroding, # w/concomitant point bar formation? 3. Apparent Rc within spec?
Feature Perform Mean or Total
98%
100%
100%
17
17
NA
100%
4. Sufficient floodplain access and relief?
17
17
NA
100%
1. General channel bed aggradation areas (bar formation)
NA
NA
0
100%
2. Channel bed degradation-areas of increasing downcutting of head cutting?
NA
NA
0
100%
100%
F. Bank
1. Actively eroding, wasting, or slumping bank?
NA
NA
7/70
96%
96%
G. Cross vanes, sills, single wing vanes
1. Free of back or arm scour?
8
8
NA
100%
2. Height appropriate?
8
8
NA
100%
3. Angle and geometry appear appropriate?
8
8
NA
100%
4. Free of piping or other structural failures?
8
8
NA
100%
H. Wads/ Boulders
1. Free of scour?
1
1
NA
100%
2. Footing stable?
1
1
NA
100%
E. Bed General
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73%
100%
100%
Table 7. Verification of Bankfull Events Table 7. Verification of Bankfull Events Chapel Creek Stream Restoration-Project No. 77 Date of Data Collection September 2008
Date of Occurrence August 27, 2008
September 2008
September 6, 2008
Method 4.25 inches of rain. Tropical Storm Hanna: 4.8 inches of rain in 8 hours.
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Photo # N/A N/A
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Figure 3. Cross Section 1 Project: Cross Section: Feature Station: Date: Crew:
Station 0 0.64 17.02 44.5 60.68 82.33 86.28 89.1 89.64 91.09 92.6 94.63 95.18 96.67 99.42 102.61 110.65 122.07 129.16 162.74 169.8
MY0-2008 Elevation 266.3 266.18 265.02 265.04 265.73 266.29 264.74 264.37 264.12 264.07 263.89 264.11 264.28 264.35 265.03 266.48 266.69 267.18 267.75 269.39 269.71
Chapel Creek Cross Section 1 Riffle 3+27 9/17/09 RL,BW,SV,RW
Notes CS1LP
BKF
TW
BKF
CS1RP
A (BKF) W (BKF) Max d Mean d W/D
Station 0.00 18.18 29.77 44.34 61.77 72.92 78.71 82.59 84.02 86.10 88.63 89.44 91.09 92.55 94.36 95.80 97.38 98.88 102.19 111.02 125.08 138.99 155.50 169.83
MY1-2009 Elevation 266.32 265.11 265.02 265.24 265.73 265.96 266.05 266.26 265.61 264.76 264.47 264.21 264.06 263.95 264.05 264.36 264.54 264.98 266.45 266.62 267.42 268.25 268.91 269.68
Notes CS1LP
MY0 30.6 19.9 2.4 1.5 12.9 Station
Summary (bankfull) MY1 MY2 MY3 29.2 19.2 2.3 1.5 12.6 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
BKF
TW
BKF
CS1RP
Photo of XS-1, looking in the downstream direction
Cross Section 1 Station 3+27 Riffle 271
270
Elevation (Feet)
269
268
267
266
265
264
263 0
20
40
60
80
100
120
Station (Feet) As-Built
Year 1
BKF MY-00
BKF MY-01
140
160
180
Figure 4. Cross Section 2
Station 0.00 0.38 4.75 6.82 11.04 14.64 25.70 31.04 36.34 37.06 41.50 47.31 51.71 57.67 67.59 73.72 74.13 76.20 76.90 77.98 78.59 79.00 80.33 82.32 82.76 83.77 85.02 85.73 86.10 86.17 87.25 88.04 89.18 90.27 92.52 97.87 99.91 106.72 113.11 117.44 120.77 128.39 131.96 136.68 137.13 137.60
MY0-2008 Elevation 266.03 265.94 265.69 265.45 265.10 264.94 264.37 264.08 263.85 263.79 263.61 263.69 263.65 263.84 263.84 264.10 263.99 262.67 262.52 262.33 262.25 261.99 261.96 261.66 261.71 261.84 261.98 262.23 262.20 262.20 262.49 262.58 262.81 263.14 263.89 264.16 264.11 264.39 264.53 264.77 264.77 265.23 265.41 265.82 265.80 265.91
Chapel Creek Cross Section 2 Riffle 5+40 9/17/09 RL,BW,SV,RW
Notes CS2LP
BKF
TW
A (BKF) W (BKF) Max d Mean d W/D
Station 0.00 16.68 30.81 50.86 62.35 73.58 75.25 76.14 77.41 78.13 78.89 81.12 82.79 84.67 85.80 87.54 89.21 90.31 91.93 93.46 97.93 104.58 112.83 113.42 122.91 127.37 130.38
MY1-2009 Elevation 266.03 264.81 264.21 263.75 263.95 264.03 263.28 262.76 262.75 262.40 262.12 262.01 262.02 262.01 262.44 262.61 263.11 263.48 263.98 264.08 264.12 264.45 264.51 264.73 265.04 265.29 265.47
Notes CS2LP
MY0 22.7 20.5 2.3 1.1 18.5 Station
Summary (bankfull) MY1 MY2 MY3 24.6 18.7 2.0 1.3 14.2 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
BKF
TW
BKF
Photo of XS-2, looking in the downstream direction
Cross Section 2 Station 5+40 Riffle 267
BKF 266
265
CS2RP
Elevation (Feet)
Project: Cross Section: Feature Station: Date: Crew:
264
263
262
261 0
20
40
60
80
100
Station (Feet) As-Built
Year 1
BKF MY-00
BKF MY-01
120
140
160
Figure 5. Cross Section 3
Station 0 0.52 2.73 9.49 14.9 20.47 23.77 28.58 35.48 42.42 48.6 50.14 50.34 52.36 53.15 53.53 55.64 55.72 56.04 57.72 60.4 61.16 62.34 64.14 67.47 72.39 73.32 78.3 81.32 86.02 95.12 97.05 112.14 112.14
MY0-2008 Elevation 265.48 265.42 265.16 264.18 263.52 263.1 263.1 262.56 262.64 262.7 262.78 262.71 262.67 261.47 260.86 260.37 259.43 259.62 259.6 259.89 260.93 261.44 261.53 261.8 262.07 262.29 262.54 263.05 263.2 263.42 263.6 263.61 263.62 263.62
Chapel Creek Cross Section 3 Riffle 6+28 9/17/09 RL,BW,SV,RW
Notes CS3LP
BKF
TW
BKF
A (BKF) W (BKF) Max d Mean d W/D
Station 0.00 10.55 18.73 31.24 35.17 41.14 46.79 49.43 51.32 51.38 54.13 54.31 54.51 55.46 57.44 58.64 59.48 60.26 62.56 66.21 71.54 75.60 83.12 83.12 95.56 103.84 112.64
MY1-2009 Elevation 265.48 264.11 263.26 262.68 262.69 262.60 262.78 262.79 262.31 262.31 260.47 260.46 259.75 259.59 259.89 260.51 260.78 261.17 261.58 262.10 262.42 262.70 263.41 263.41 263.56 263.66 263.65
Notes CS3LP
MY0 30.7 24.2 3.2 1.3 19.1 Station
Summary (bankfull) MY1 MY2 MY3 31.1 27.1 3.2 1.1 23.6 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
BKF
TW
Photo of XS-3, looking in the downstream direction
CS3RP
Cross Section 3 Station 6+28 Riffle 266
CS3RP
265
264
Elevation (Feet)
Project: Cross Section: Feature Station: Date: Crew:
263
262
261
260
259 0
20
40
60
80
Station (Feet) As-Built
Year 1
BKF MY-00
BKF MY-01
100
120
Figure 6. Cross Section 4 Project: Cross Section: Feature Station: Date: Crew:
Station 0 0.37 11.25 21 27.2 33.42 37.4 37.36 42.23 43.48 46.99 48.79 49.47 51.67 54.33 59.33 61.93 66.89 75.89 76.23
MY0-2008 Elevation 262.82 262.73 261.64 260.46 260.07 259.81 259.78 259.79 258.51 258.4 258.07 258.22 258.56 258.79 259.9 260.18 260.17 260.72 262.24 262.27
Chapel Creek Cross Section 4 Riffle 9+19 9/17/09 RL,BW,SV,RW
Notes CS4LP
BKF
TW
BKF
CS4RP
A (BKF) W (BKF) Max d Mean d W/D
Station 0.00 10.20 21.56 30.04 35.61 37.48 38.96 40.32 42.50 44.02 45.06 45.75 48.42 48.64 49.13 49.42 51.39 54.59 62.38 68.60 68.64 76.18
MY1-2009 Elevation 262.81 261.64 260.50 260.05 259.72 259.64 259.13 258.63 258.28 258.01 257.93 258.01 258.06 258.18 258.54 258.54 258.65 259.95 260.15 260.95 260.92 262.35
Notes CS4LP
MY0 18.9 21.6 1.8 0.9 24.7 Station
Summary (bankfull) MY1 MY2 MY3 20.8 19.9 1.9 1.0 19.0 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
BKF
TW
BKF
CS4RP Photo of XS-4, looking in the downstream direction
Cross Section 4 Station 9+19 Riffle 264
263
Elevation (Feet)
262
261
260
259
258
257 0
10
20
30
40
50
60
Station (Feet) As-Built
Year 1
BKF MY-00
BKF MY-01
70
80
90
Figure 7. Cross Section 5 Project: Cross Section: Feature Station: Date: Crew:
Station 0 11.46 11.9 14.29 17.16 21.29 24.94 29.43 38.04 40.27 41.78 43.14 43.92 46.07 47.81 49.84 50.92 51.32 51.55 51.59 51.85 52.29 53.88 55.53 57.29 59.48 70.78
MY0-2008 Elevation 263.84 263.25 263.17 262.76 262.06 261.07 260.4 260.09 259.37 258.13 257.51 257.19 257.16 256.88 256.84 256.71 256.5 256.53 256.86 257.39 257.89 258.83 259.61 260.82 261.32 261.63 263
Chapel Creek Cross Section 5 Riffle 11+23 9/17/09 RL,BW,SV,RW
Notes CS5LP
BKF
Station 11.46 18.59 25.70 32.76 34.95 37.85 40.42 41.37 43.11 45.35 47.47 49.40 50.91 56.60 59.41
A (BKF) W (BKF) Max d Mean d W/D
MY0 28.9 15.4 2.9 1.9 8.2
MY1-2009 Elevation Notes Station 263.25 X5LP 261.67 X5 260.34 X5 259.76 X5 259.71 X5 259.29 nkfull Left TOBL 258.00 X5 257.54 X5TOE 257.21 X5 256.92 X5 256.79 X5 256.63 TW 256.66 X5TOE 261.24 TOBR 261.60 X5RP
Summary (bankfull) MY1 MY2 MY3 29.8 16.3 2.7 1.8 8.9 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
TW
BKF Photo of XS-5, looking in the downstream direction CS5RP
Cross Section 5 Station 11+23 Riffle 265
264
263
Elevation (Feet)
262
261
260
259
258
257
256 0
10
20
30
40
50
Station (Feet) As-Built
Year 1
BFK MY-00
BKF MY-01
60
70
80
Figure 8. Chapel Creek MY-01 Longitudinal Profile Proposed Thalweg
MY-00 Thalweg
MY-01 Thalweg
MY-01 Water Surface
MY-00 Bankfull
MY-01 Bankfull
269 268
CS-5 Sta. 11+23 Riffle
270
CS-4 Sta. 9+19 Riffle
271
CS-3 Sta. 6+28 Pool
CS-1 Sta. 3+27 Riffle
272
CS-2 Sta. 5+40 Riffle
273
267 266
Elevation (NAVD88)
265 264 263 262 261 260 259 258 257 256 255 254 253 252
Reach 1: Restoration Sta. 0+00-9+97
Reach 2: Enhancement Sta. 9+97-13+50
251 250 0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
Station
750
800
850
900
950
1000 1050 1100 1150 1200 1250 1300 1350 1400
Figure 9. Pebble Count-Cross Section 1 Project: Location:
Chapel Creek, Chapel Hill, NC CS-1
Inches
Particle Silt/Clay Very Fine Fine Medium Coarse .04 -.08 Very Coarse .08 - .16 Very Fine .16 - .22 Fine .22 - .31 Fine .31 - .44 Medium .44 - .63 Medium .63 - .89 Coarse .89 - 1.26 Coarse 1.26 - 1.77 Very Coarse 1.77 - 2.5 Very Coarse 2.5 - 3.5 Small 3.5 - 5.0 Small 5.0 - 7.1 Large 7.1 - 10.1 Large 10.1 - 14.3 Small 14.3 - 20 Small 20 - 40 Medium 40 - 80 Lrg- Very Lrg Bedrock
Millimeter < 0.062 .062 - .125 .125 - .25 .25 - .50 .50 - 1.0 1.0 - 2.0 2.0 - 4.0 4.0 - 5.7 5.7 - 8.0 8.0 - 11.3 11.3 - 16.0 16.0 - 22.6 22.6 - 32.0 32.0 - 45.0 45.0 - 64.0 64 - 90 90 - 128 128 - 180 180 - 256 256 - 362 362 - 512 512 - 1024 1024 - 2048
d16 33.2
Date:
S/C S A N D S G R A V E L S C O B L B L D R BDRK Totals d35 46.9
Particle Counts Riffles Pools 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 1 0 0 0 0 0 2 0 9 0 18 0 34 0 22 0 8 0 4 0 2 0 1 0 0 0 0 0 0 0 0 0 104 0 d50 55.6
d84 88.1
Total No. 0 0 0 0 2 1 0 0 1 0 0 2 9 18 34 22 8 4 2 1 0 0 0 0 104
9/17/2009
Item % 0% 0% 0% 0% 2% 1% 0% 0% 1% 0% 0% 2% 9% 17% 33% 21% 8% 4% 2% 1% 0% 0% 0% 0% 100%
% Cumulative 0% 0% 0% 0% 2% 3% 3% 3% 4% 4% 4% 6% 14% 32% 64% 86% 93% 97% 99% 100% 100% 100% 100% 100% 100%
d95 151.4
Particle Size Distribution Cross Section #1
% Finer Than (Cumulative)
100% 90% 80% 70% 60% MY-00 50%
MY-01
40% 30% 20% 10% 0% 0.1
1
10 Particle Size - Millimeter
100
1000
Figure 10. Pebble Count-Cross Section 2 Project: Location:
Chapel Creek, Chapel Hill, NC CS-2
Inches
Particle Silt/Clay Very Fine Fine Medium Coarse .04 -.08 Very Coarse .08 - .16 Very Fine .16 - .22 Fine .22 - .31 Fine .31 - .44 Medium .44 - .63 Medium .63 - .89 Coarse .89 - 1.26 Coarse 1.26 - 1.77 Very Coarse 1.77 - 2.5 Very Coarse 2.5 - 3.5 Small 3.5 - 5.0 Small 5.0 - 7.1 Large 7.1 - 10.1 Large 10.1 - 14.3 Small 14.3 - 20 Small 20 - 40 Medium 40 - 80 Lrg- Very Lrg Bedrock
Millimeter < 0.062 .062 - .125 .125 - .25 .25 - .50 .50 - 1.0 1.0 - 2.0 2.0 - 4.0 4.0 - 5.7 5.7 - 8.0 8.0 - 11.3 11.3 - 16.0 16.0 - 22.6 22.6 - 32.0 32.0 - 45.0 45.0 - 64.0 64 - 90 90 - 128 128 - 180 180 - 256 256 - 362 362 - 512 512 - 1024 1024 - 2048
d16 24.4
Date:
S/C S A N D S G R A V E L S C O B L B L D R BDRK Totals d35 45.0
Particle Counts Riffles Pools 0 0 0 0 0 0 1 0 6 0 6 0 0 0 0 0 0 0 0 0 0 0 3 0 2 0 18 0 29 0 25 0 6 0 3 0 2 0 1 0 0 0 1 0 0 0 0 0 103 0 d50 55.2
d84 86.4
Total No. 0 0 0 1 6 6 0 0 0 0 0 3 2 18 29 25 6 3 2 1 0 1 0 0 103
9/17/2009
Item % 0% 0% 0% 1% 6% 6% 0% 0% 0% 0% 0% 3% 2% 17% 28% 24% 6% 3% 2% 1% 0% 1% 0% 0% 100%
% Cumulative 0% 0% 0% 1% 7% 13% 13% 13% 13% 13% 13% 16% 17% 35% 63% 87% 93% 96% 98% 99% 99% 100% 100% 100% 100%
d95 160.1
Particle Size Distribution Cross Section #2
% Finer Than (Cumulative)
100% 90% 80% 70% 60% MY-00 50%
MY-01
40% 30% 20% 10% 0% 0.1
1
10 Particle Size - Millimeter
100
1000
Figure 11. Pebble Count-Cross Section 4 Project: Location:
Chapel Creek, Chapel Hill, NC CS-4
Inches
Particle Silt/Clay Very Fine Fine Medium Coarse .04 -.08 Very Coarse .08 - .16 Very Fine .16 - .22 Fine .22 - .31 Fine .31 - .44 Medium .44 - .63 Medium .63 - .89 Coarse .89 - 1.26 Coarse 1.26 - 1.77 Very Coarse 1.77 - 2.5 Very Coarse 2.5 - 3.5 Small 3.5 - 5.0 Small 5.0 - 7.1 Large 7.1 - 10.1 Large 10.1 - 14.3 Small 14.3 - 20 Small 20 - 40 Medium 40 - 80 Lrg- Very Lrg Bedrock
Millimeter < 0.062 .062 - .125 .125 - .25 .25 - .50 .50 - 1.0 1.0 - 2.0 2.0 - 4.0 4.0 - 5.7 5.7 - 8.0 8.0 - 11.3 11.3 - 16.0 16.0 - 22.6 22.6 - 32.0 32.0 - 45.0 45.0 - 64.0 64 - 90 90 - 128 128 - 180 180 - 256 256 - 362 362 - 512 512 - 1024 1024 - 2048
d16 46.6
Date:
S/C S A N D S G R A V E L S C O B L B L D R BDRK Totals d35 56.5
Particle Counts Riffles Pools 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 8 0 37 0 31 0 8 0 4 0 6 0 1 0 1 0 0 0 0 0 0 0 101 0 d50 64.4
d84 108.2
Total No. 0 0 0 2 1 0 0 0 0 0 0 0 2 8 37 31 8 4 6 1 1 0 0 0 101
9/17/2009
Item % 0% 0% 0% 2% 1% 0% 0% 0% 0% 0% 0% 0% 2% 8% 37% 31% 8% 4% 6% 1% 1% 0% 0% 0% 100%
% Cumulative 0% 0% 0% 2% 3% 3% 3% 3% 3% 3% 3% 3% 5% 13% 50% 80% 88% 92% 98% 99% 100% 100% 100% 100% 100%
d95 217.4
Particle Size Distribution Cross Section #4
% Finer Than (Cumulative)
100% 90% 80% 70% 60% MY-00 50%
MY-01
40% 30% 20% 10% 0% 0.1
1
10 Particle Size - Millimeter
100
1000
Figure 12. Pebble Count-Cross Section 5 Project: Location:
Chapel Creek, Chapel Hill, NC CS-5
Inches
Particle Silt/Clay Very Fine Fine Medium Coarse .04 -.08 Very Coarse .08 - .16 Very Fine .16 - .22 Fine .22 - .31 Fine .31 - .44 Medium .44 - .63 Medium .63 - .89 Coarse .89 - 1.26 Coarse 1.26 - 1.77 Very Coarse 1.77 - 2.5 Very Coarse 2.5 - 3.5 Small 3.5 - 5.0 Small 5.0 - 7.1 Large 7.1 - 10.1 Large 10.1 - 14.3 Small 14.3 - 20 Small 20 - 40 Medium 40 - 80 Lrg- Very Lrg Bedrock
Millimeter < 0.062 .062 - .125 .125 - .25 .25 - .50 .50 - 1.0 1.0 - 2.0 2.0 - 4.0 4.0 - 5.7 5.7 - 8.0 8.0 - 11.3 11.3 - 16.0 16.0 - 22.6 22.6 - 32.0 32.0 - 45.0 45.0 - 64.0 64 - 90 90 - 128 128 - 180 180 - 256 256 - 362 362 - 512 512 - 1024 1024 - 2048
d16 0.9
Date:
S/C S A N D S G R A V E L S C O B L B L D R BDRK Totals d35 12.3
Particle Counts Riffles Pools 0 0 0 0 0 0 7 0 13 0 11 0 0 0 1 0 1 0 1 0 8 0 9 0 18 0 8 0 13 0 6 0 3 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 103 0 d50 22.3
d84 58.9
Total No. 0 0 0 7 13 11 0 1 1 1 8 9 18 8 13 6 3 3 1 0 0 0 0 0 103
9/17/2009
Item % 0% 0% 0% 7% 13% 11% 0% 1% 1% 1% 8% 9% 17% 8% 13% 6% 3% 3% 1% 0% 0% 0% 0% 0% 100%
% Cumulative 0% 0% 0% 7% 19% 30% 30% 31% 32% 33% 41% 50% 67% 75% 87% 93% 96% 99% 100% 100% 100% 100% 100% 100% 100%
d95 113.4
Particle Size Distribution Cross Section #5 (Enhancement Reach)
% Finer Than (Cumulative)
100% 90% 80% 70% 60% MY-00 50%
MY-01
40% 30% 20% 10% 0% 0.1
1
10 Particle Size - Millimeter
100
1000
MY-01 Monitoring Report - Final Data Collected: September 2009 Submitted: December 1, 2009
Prepared for: North Carolina Department of Environment and Natural Resources Ecosystem Enhancement Program Parker Lincoln Building 2728 Capital Boulevard, Suite 1H-103 Raleigh, NC 27606
Chapel Creek Stream Restoration EEP Project #77 Chapel Hill, North Carolina Orange County
MY-01 Monitoring Report - Final Prepared By:
Ward Consulting Engineers, P.C. Project Manager: Becky Ward, P.E. 8386 Six Forks Road, Suite 101 Raleigh, NC 27615-5088 Ph: 919-870-0526 Fax: 919-870-5359
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Year 1 Monitoring Report-FINAL Year 1 of 5 December 2009
TABLE OF CONTENTS I. Executive Summary ................................................................................................................ 1 II. Methodology ........................................................................................................................... 2 A. Vegetation Methodologies .................................................................................................. 2 B. Stream Methodologies ........................................................................................................ 2 III. References........................................................................................................................... 3 APPENDICES Appendix A. General Figures and Plan Views .............................................................................. 4 Figure 1A. Vicinity Map.................................................................................................... 5 Figure 2. Consolidated Current Condition Plan View ....................................................... 6 Appendix B. General Projects Tables............................................................................................ 7 Table 1. Project Restoration Components ......................................................................... 8 Table 2. Project Activity and Reporting History ............................................................... 8 Table 3. Project Contacts Table ......................................................................................... 9 Table 4. Project Attribute Table....................................................................................... 10 Appendix C. Vegetation Assessment Data .................................................................................. 11 Photo 1. Vegetation Plot 1 ............................................................................................... 12 Photo 2. Vegetation Plot 2 ............................................................................................... 12 Photo 3. Vegetation Plot 3 ............................................................................................... 13 Photo 4. Vegetation Plot 4 ............................................................................................... 13 Table 5. Stem Count Total and Planted by Plot and Species........................................... 14 Appendix D. Stream Assessment Data ........................................................................................ 15 Photo 5. Looking downstream at XS-1........................................................................... 16 Photo 6. Looking downstream at XS-2............................................................................ 16 Photo 7. Looking downstream at XS-3............................................................................ 17 Photo 8. Looking downstream at XS-4............................................................................ 17 Photo 9. Looking downstream at XS-5............................................................................ 18 Table 6. Visual Morphological Stability Assessment...................................................... 19 Table 7. Verification of Bankfull Events......................................................................... 20 Figure 3. Cross-Section 1................................................................................................. 21 Figure 4. Cross-Section 2................................................................................................. 22 Figure 5. Cross-Section 3................................................................................................. 23 Figure 6. Cross-Section 4................................................................................................. 24 Figure 7. Cross-Section 5................................................................................................. 25 Figure 8. Longitudinal Profile.......................................................................................... 26 Figure 9. Pebble Count Plots – XS-1 ............................................................................... 27 Figure 10. Pebble Count Plots – XS-2 ............................................................................. 28 Figure 11. Pebble Count Plots – XS-4 ............................................................................. 29 Figure 12. Pebble Count Plots – XS-5 ............................................................................. 29
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I.
Executive Summary
The North Carolina Ecosystem Enhancement Program (EEP) has completed a stream restoration project along approximately 1,350 linear feet of Chapel Creek, located on University of North Carolina property in Chapel Hill, Orange County, North Carolina. The project is located in the Morgan Creek Local Watershed planning area, within the 14-digit HUC 03030002060080. The drainage area for Chapel Creek is approximately 0.42 square miles at the downstream limit of the project where a drainage channel through the A.E. Finley Golf Course flows into Chapel Creek. The land use in the watershed consists of University of North Carolina facilities, single family residential, elementary schools, roadways, and forested land. The Morgan Creek LWP noted water quality degradation and impaired biological community in the watershed and identified major watershed stressors as: streambank erosion, excess stormwater runoff, and disturbed riparian buffers. The goals of the restoration project are to improve water quality in Chapel Creek and the Cape Fear river basin by: • • • • •
Channel restoration of pattern, profile, and dimension for approximately 960 linear feet of Chapel Creek. Channel enhancement/stabilization for approximately 330 feet with a Priority Two restoration approach, bankfull bench and stream bank repairs. Restore reach to a stable stream channel, capable of transporting flows and sediment load efficiently. Improve aquatic habitat by planting trees along the banks in the cleared section to increase shade and adding more sinuosity to create more pool and riffle sections. Reduce sediment inputs to the stream from bank erosion by re-vegetating the banks.
The new CVS-EEP protocol was not administered for monitoring year one. Four vegetation monitoring plots were monitored and only planted stems were counted to monitor success criteria. Currently, 769 planted stems per acre are succeeding within the conservation easement. The success criteria of the planted woody species are the survival of 320 stems/acre after monitoring year three (MY3). A mortality rate of ten percent will be allowed after MY4 (288 stems/acre), with another ten percent mortality rate allowed after MY5 requiring a minimum of 260 stems/acre. Herbaceous species such as dog fennel (Eupatorium capillifolium), horseweed (Erigeron canadensis), tickseed (Bidens sp.), seedbox (Ludwigia sp.), smartweed (Persicaria sp.), common rush (Juncus sp.), sedges (Carex sp.), and various grasses, are present throughout the conservation easement. Woody species observed that were not planted include easterm red cedar (Juniperus virginiana), loblolly pine (Pinus taeda), silverling (Baccharis halimifolia), sycamore (Platanus occidentalis), green ash (Fraxinus pennsylvanica), tulip poplar (Liriodendron tulipifera), sweetgum (Liquidambar styraciflua), hickory (Carya sp.), hazelnut (Corylus americana), willow oak (Quercus phellos), black willow (Salix nigra), and tag alder (Alnus serrulata). Invasive exotics observed include Japanese honeysuckle (Lonicera japonica), Japanese stiltgrass (Microstegium vimineum), autumn olive (Elaeagnus umbellata), multiflora rose (Rosa multiflora), and Chinese privet (Ligustrum sinense). According to the NC Native Plant Society all of these species are classified as Rank 1 “Severe Threat” species which is defined as exotic plant species that have invasive characteristics and spread readily into native plant communities, Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
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displacing native vegetation. Although these species have been given this rank, the functionality of the project is not expected to be impaired significantly. The vegetation problem areas consist of invasive exotic species present within the conservation easement. See Table - for vegetation problem area descriptions and figure – for their locations. See section - of Appendix - for representative photos of the vegetation problem areas observed within the conservation easement of Chapel Creek. The channel and banks of the restoration project are stable when compared to MY-00. There are not any negligible changes in pattern, profile or dimension between the monitoring years. The riffle pebble counts are trending slightly finer, but this is to be expected as the larger substrate in constructed riffles picks up some sediment deposition. A few problem areas were noted in the banks, but these do not appear to be further degrading and will likely continue to stabilize as vegetation is established. Summary information/data related to the occurrence of items and statistics related to performance of various project and monitoring elements, can be found in the tables and figures in the report appendices. Narrative background and supporting information formally found in these reports can be found in the mitigation and restoration plan documents available on EEP’s website. All raw data supporting the tables and figures in the appendices is available from EEP upon request.
II. Methodology Methodologies follow EEP monitoring report template Version 1.2.1 (06/01/09) and guidelines (Lee et al 2008). Photos were taken with a digital camera. A Trimble Geo XT handheld unit with sub-meter accuracy was used to collect vegetation monitoring plot origins, and problem area locations. Cross sectional and longitudinal surveys were conducted using total station survey equipment. Data was entered into AutoCAD Civil3D to obtain dimensions of the cross sections and parameters applicable to the longitudinal profile. Reports were then generated to display summaries of the stream survey.
A. Vegetation Methodologies A total of four 100m² vegetation monitoring plots were established during as built data collection. VP1, VP3, and VP4 are 20m x 5m plots and VP2 is a 10m x 10m plot. Planted stems within each plot were identified and counted to determine the number of stems/acre. Data collected for these plots are in Appendix C. The CVS-EEP protocol was not implemented for this project
B. Stream Methodologies Stream profile and cross-sections were surveyed using total station equipment and methods. The survey data was plotted using AutoCAD Civil3D. The longitudinal profile was generated using the MY-02 alignment. Cross sectional data was extracted based on a linear alignment between the end pins.
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III. References Miller, James H. 2003. Nonnative invasive plants of southern forests: a field guide for identification and control. Gen. Tech. Rep. SRS–62. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 93 p. Weakley, Alan (2006). Flora of the Carolinas, Virginia, Georgia, and Surrounding Areas. http://www.herbarium.unc.edu/flora.htm.
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Appendix A. General Figures and Plan Views
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
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Cross Section Pin Coordinate Cross Section Left Pin Number Northing Easting 1 784445.1 1991725.0 2 784371.4 1991918.4 3 784355.6 1991952.4 4 784268.3 1992192.8 5 784072.4 1992318.0
Table (NAD83) Right Pin Northing Easting 784315.4 1991615.7 784280.9 1991815.1 784249.4 1991915.3 784192.1 1992194.8 784060.4 1992271.5
Vegetation Plot Pin Coordinate Table (NAD83) Vegetation Pin 1 Pin 2 Pin 3 Plot Number Northing Easting Northing Easting Northing Easting 1 784445.7 1991562.8 784429.7 1991560.5 784422.8 1991625.7 2 784319.4 1991786.6 784320.5 1991819.2 784286.9 1991787.1 3 784216.3 1992146.0 784249.9 1992211.3 784200.0 1992154.8 4 784015.2 1992316.7 784024.2 1992330.8 783969.2 1992366.4
Pin 4 Northing Easting 784438.7 1991627.9 784287.1 1991819.9 784203.7 1992211.7 783960.4 1992353.1
Appendix B. General Projects Tables
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Table 1. Project Restoration Components Table 1. Project Restoration Components Chapel Creek Stream Restoration-Project No. 77 Project Segment Reach I.D.
Existing Mitigation Linear Mitigation Mitigation Approach Stationing Feet Type Feet Ratio Units
Reach I
957
Reach II
356
Priority 1
961
1
961
0+00 to 9+94
Enhancement Priority 3 II
330
1.5
220
9+94 to 13+50
Restoration
Mitigation Unit Summations Riparian Wetland Stream (lf) (Ac) 1181 0
Nonriparian Wetland (Ac) 0
Comments Includes 900 lf of channel relocation Instream Structure and Vegetated Buffers
Total Wetland(Ac) Buffer (Ac) 0
Comment
1.2
Table 2. Project Activity and Reporting History Table 2. Project Activity and Reporting History Chapel Creek Stream Restoration-Project No. 77 Data Collection Complete
Activity or Reporting Restoration Plan Final Design – Construction Plans Construction Temporary S&E mix applied to entire project area Permanent seed mix applied to enitre project area Repairs to stream due to damages from storm events Temporary S&E mix applied to area disturbed by repairs Permanent seed mix applied to area disturbed by repairs Containerized and B&B plantings for entire reach Mitigation Plan / As-built (Year 0 Monitoring – baseline) Year 1 Monitoring Year 2 Monitoring Year 3 Monitoring Year 4 Monitoring Year 5 Monitoring Year 5+ Monitoring
Mar-09 Sept-09
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Actual Completion Date Aug-06 Jun-07 Jul-08 Jul-08 Jul-08 Mar-09 Mar-09 Mar-09 Mar-09 Mar-09 Nov-09
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Table 3. Project Contacts Table Table 3. Project Contacts Table Chapel Creek Stream Restoration - Project No. 77 Ward Consulting Engineers, P.C. 8386 Six Forks Road Suite 101 Raleigh, NC 27615-5088 Primary project design POC Becky Ward 919-870-0526 Designer
River Works, Inc. 800 Regency Parkway, Suite 200 Cary, NC 27518 Construction contractor POC Will Pederson 919-459-9001 Construction Contractor
Survey Contractor
Level Cross Surveying, PLLC (all surveying) 668 Marsh County Lane Randleman, NC 27317
Survey contractor POC
Sherie Willard 336-495-1713
Planting Contractor
River Works, Inc. 800 Regency Parkway, Suite 200 Cary, NC 27518
Planting contractor POC
Will Pederson 919-459-9001
Seeding Contractor
River Works, Inc. 800 Regency Parkway, Suite 200 Cary, NC 27518 Will Pederson 919-459-9001 Green Resource 336-855-6363 Mellow Marsh Farm, Inc. 919-742-1200 Cure Nursery 919-542-6186
Contractor point of contact Seed Mix Sources Nursery Stock Suppliers Monitoring Performers
Ward Consulting Engineers, P.C. 8386 Six Forks Road Suite 101 Raleigh, NC 27615-5088
Stream Monitoring POC
Robert Langager 919-870-0526
Vegetation Monitoring POC
Chris Sheats - The Catena Group - 919-732-1300
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Table 4. Project Attribute Table Table 4. Project Background Table Chapel Creek Stream Restoration Site-Project No. 77 Project County Drainage Area Drainage impervious surface cover estimate (%) Stream Order Physiographic Region Ecoregion Rosgen Classification of As-Built Cowardin Classification Dominant Soil Types Reference Site ID USGS HUC for Project USGS HUC for Reference NCDWQ Sub-basin for Project NCDWQ Sub-basin for Reference Reach NCDWQ Classification for Project NCDWQ Classification for Reference Is any portion of any project segment 303D listed? Is any portion of any project segment upstream of a 303D listed segment? Reasons for 303D listing or stressor % of project easement fenced
Orange 0.42 square miles < 5% 2 Piedmont (Triassic Basin) Central Piedmont C4 Riverine Chewacla Cabin Branch 03030002 03020201 03-06-06 03-04-01 WS-IV;NSW WS-IV;NSW No Yes Standard Violation 0%
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Appendix C. Vegetation Assessment Data
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Vegetation Monitoring Plots Photos
Photo 1. Vegetation Plot 1
Photo 2. Vegetation Plot 2 Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
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Photo 3. Vegetation Plot 3
Photo 4. Vegetation Plot 4
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Table 5. Chapel Creek MY-01 Vegetation Plot Stem Counts Scientific Name
Common Name
Magnolia virginiana Rosa palustris Rhododendron viscosum Viburnum cassinoides Hibiscus moscheutos Vaccinium corymbosum Diospyros virginiana Lindera benzoin Quercus nigra Carpinus caroliniana Betula nigra Fraxinus pennsylvanica Platanus occidentalis Calycanthus floridus Hamamelis virgniniana Viburnum dentatum Viburnum nudum Cornus amomum Xanthorhiza simplicissima Cephalanthus occidentalis
Sweetbay Magnolia Swamp Rose Swamp Azalea Northern Wild Raisin Eastern Rose Mallow Highbush Blueberry American Persimmon Spicebush Water Oak Ironwood River Birch Green Ash Sycamore Sweet-shrub Witch-hazel Mapleleaf Viburnum Possumhaw Silky Dogwood Brook-feather Buttonbush
1 3 5
2 1 1
Plot* 2 3
3
3 5
5 2
2 2 3 6 5
1
3
1 2 4 3
1
13
4
2
4
15
4 2 1 27
21
Total 3 5 0 0 2 1 7 7 3 3 13 11 3 4 0 7 0 4 2 1 76
Total
Table 5. Stem Count Total and Planted by Plot and Species
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Appendix D. Stream Assessment Data
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Stream Station Photos
Photo 5. Looking downstream at XS-1
Photo 6. Looking downstream at XS-2
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Year 1 Monitoring Report-FINAL Year 1 of 5
16
December 2009
Photo 7. Looking downstream at XS-3
Photo 8. Looking downstream at XS-4
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Year 1 Monitoring Report-FINAL Year 1 of 5
17
December 2009
Photo 9. Looking downstream at XS-5
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Year 1 Monitoring Report-FINAL Year 1 of 5
18
December 2009
Table 6. Visual Morphological Stability Assessment Table 6. Visual Morphological Stability Assessment Chapel Creek Stream Restoration-Project N0. 77 Reach 1 (Restoration): (961 feet)
Feature Category A. Riffles
B. Pools
C. Thalweg
D. Meanders
(# Stable) Number Performing as Intended 18
Total number per As-built 18
Total Number / feet in unstable state NA
% Perform in Stable Condition 100%
2. Armor stable (e.g.no displacement?)
18
18
NA
100%
3. Facet grade appears stable?
17
18
NA
94%
4. Minimal evidence of embedding/fining?
18
18
NA
100%
5. Length appropriate?
17
18
NA
94%
17
17
NA
100%
17
17
NA
100%
17
17
NA
100%
18
18
NA
100%
18
18
NA
100%
12
17
NA
71%
1
5
NA
20%
Metric (per As-built and reference baselines) 1. Present?
1. Present? (e.g. not subject to severe aggrad. Or migrat.?) 2. Sufficiently deep (Max. Pool D:Mean Bkf>1.6?) 3. Length appropriate? 1. Upstream of meander bend (run/inflection) centering? 2. Downstream of meander (glide/inflection) centering? 1. Outer bend in state of limited/controlled erosion? 2. Of those eroding, # w/concomitant point bar formation? 3. Apparent Rc within spec?
Feature Perform Mean or Total
98%
100%
100%
17
17
NA
100%
4. Sufficient floodplain access and relief?
17
17
NA
100%
1. General channel bed aggradation areas (bar formation)
NA
NA
0
100%
2. Channel bed degradation-areas of increasing downcutting of head cutting?
NA
NA
0
100%
100%
F. Bank
1. Actively eroding, wasting, or slumping bank?
NA
NA
7/70
96%
96%
G. Cross vanes, sills, single wing vanes
1. Free of back or arm scour?
8
8
NA
100%
2. Height appropriate?
8
8
NA
100%
3. Angle and geometry appear appropriate?
8
8
NA
100%
4. Free of piping or other structural failures?
8
8
NA
100%
H. Wads/ Boulders
1. Free of scour?
1
1
NA
100%
2. Footing stable?
1
1
NA
100%
E. Bed General
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Year 1 Monitoring Report-FINAL Year 1 of 5
19
December 2009
73%
100%
100%
Table 7. Verification of Bankfull Events Table 7. Verification of Bankfull Events Chapel Creek Stream Restoration-Project No. 77 Date of Data Collection September 2008
Date of Occurrence August 27, 2008
September 2008
September 6, 2008
Method 4.25 inches of rain. Tropical Storm Hanna: 4.8 inches of rain in 8 hours.
Chapel Creek Stream Restoration NCEEP Project number: 77 Ward Consulting Engineers, P.C.
Photo # N/A N/A
Year 1 Monitoring Report-FINAL Year 1 of 5
20
December 2009
Figure 3. Cross Section 1 Project: Cross Section: Feature Station: Date: Crew:
Station 0 0.64 17.02 44.5 60.68 82.33 86.28 89.1 89.64 91.09 92.6 94.63 95.18 96.67 99.42 102.61 110.65 122.07 129.16 162.74 169.8
MY0-2008 Elevation 266.3 266.18 265.02 265.04 265.73 266.29 264.74 264.37 264.12 264.07 263.89 264.11 264.28 264.35 265.03 266.48 266.69 267.18 267.75 269.39 269.71
Chapel Creek Cross Section 1 Riffle 3+27 9/17/09 RL,BW,SV,RW
Notes CS1LP
BKF
TW
BKF
CS1RP
A (BKF) W (BKF) Max d Mean d W/D
Station 0.00 18.18 29.77 44.34 61.77 72.92 78.71 82.59 84.02 86.10 88.63 89.44 91.09 92.55 94.36 95.80 97.38 98.88 102.19 111.02 125.08 138.99 155.50 169.83
MY1-2009 Elevation 266.32 265.11 265.02 265.24 265.73 265.96 266.05 266.26 265.61 264.76 264.47 264.21 264.06 263.95 264.05 264.36 264.54 264.98 266.45 266.62 267.42 268.25 268.91 269.68
Notes CS1LP
MY0 30.6 19.9 2.4 1.5 12.9 Station
Summary (bankfull) MY1 MY2 MY3 29.2 19.2 2.3 1.5 12.6 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
BKF
TW
BKF
CS1RP
Photo of XS-1, looking in the downstream direction
Cross Section 1 Station 3+27 Riffle 271
270
Elevation (Feet)
269
268
267
266
265
264
263 0
20
40
60
80
100
120
Station (Feet) As-Built
Year 1
BKF MY-00
BKF MY-01
140
160
180
Figure 4. Cross Section 2
Station 0.00 0.38 4.75 6.82 11.04 14.64 25.70 31.04 36.34 37.06 41.50 47.31 51.71 57.67 67.59 73.72 74.13 76.20 76.90 77.98 78.59 79.00 80.33 82.32 82.76 83.77 85.02 85.73 86.10 86.17 87.25 88.04 89.18 90.27 92.52 97.87 99.91 106.72 113.11 117.44 120.77 128.39 131.96 136.68 137.13 137.60
MY0-2008 Elevation 266.03 265.94 265.69 265.45 265.10 264.94 264.37 264.08 263.85 263.79 263.61 263.69 263.65 263.84 263.84 264.10 263.99 262.67 262.52 262.33 262.25 261.99 261.96 261.66 261.71 261.84 261.98 262.23 262.20 262.20 262.49 262.58 262.81 263.14 263.89 264.16 264.11 264.39 264.53 264.77 264.77 265.23 265.41 265.82 265.80 265.91
Chapel Creek Cross Section 2 Riffle 5+40 9/17/09 RL,BW,SV,RW
Notes CS2LP
BKF
TW
A (BKF) W (BKF) Max d Mean d W/D
Station 0.00 16.68 30.81 50.86 62.35 73.58 75.25 76.14 77.41 78.13 78.89 81.12 82.79 84.67 85.80 87.54 89.21 90.31 91.93 93.46 97.93 104.58 112.83 113.42 122.91 127.37 130.38
MY1-2009 Elevation 266.03 264.81 264.21 263.75 263.95 264.03 263.28 262.76 262.75 262.40 262.12 262.01 262.02 262.01 262.44 262.61 263.11 263.48 263.98 264.08 264.12 264.45 264.51 264.73 265.04 265.29 265.47
Notes CS2LP
MY0 22.7 20.5 2.3 1.1 18.5 Station
Summary (bankfull) MY1 MY2 MY3 24.6 18.7 2.0 1.3 14.2 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
BKF
TW
BKF
Photo of XS-2, looking in the downstream direction
Cross Section 2 Station 5+40 Riffle 267
BKF 266
265
CS2RP
Elevation (Feet)
Project: Cross Section: Feature Station: Date: Crew:
264
263
262
261 0
20
40
60
80
100
Station (Feet) As-Built
Year 1
BKF MY-00
BKF MY-01
120
140
160
Figure 5. Cross Section 3
Station 0 0.52 2.73 9.49 14.9 20.47 23.77 28.58 35.48 42.42 48.6 50.14 50.34 52.36 53.15 53.53 55.64 55.72 56.04 57.72 60.4 61.16 62.34 64.14 67.47 72.39 73.32 78.3 81.32 86.02 95.12 97.05 112.14 112.14
MY0-2008 Elevation 265.48 265.42 265.16 264.18 263.52 263.1 263.1 262.56 262.64 262.7 262.78 262.71 262.67 261.47 260.86 260.37 259.43 259.62 259.6 259.89 260.93 261.44 261.53 261.8 262.07 262.29 262.54 263.05 263.2 263.42 263.6 263.61 263.62 263.62
Chapel Creek Cross Section 3 Riffle 6+28 9/17/09 RL,BW,SV,RW
Notes CS3LP
BKF
TW
BKF
A (BKF) W (BKF) Max d Mean d W/D
Station 0.00 10.55 18.73 31.24 35.17 41.14 46.79 49.43 51.32 51.38 54.13 54.31 54.51 55.46 57.44 58.64 59.48 60.26 62.56 66.21 71.54 75.60 83.12 83.12 95.56 103.84 112.64
MY1-2009 Elevation 265.48 264.11 263.26 262.68 262.69 262.60 262.78 262.79 262.31 262.31 260.47 260.46 259.75 259.59 259.89 260.51 260.78 261.17 261.58 262.10 262.42 262.70 263.41 263.41 263.56 263.66 263.65
Notes CS3LP
MY0 30.7 24.2 3.2 1.3 19.1 Station
Summary (bankfull) MY1 MY2 MY3 31.1 27.1 3.2 1.1 23.6 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
BKF
TW
Photo of XS-3, looking in the downstream direction
CS3RP
Cross Section 3 Station 6+28 Riffle 266
CS3RP
265
264
Elevation (Feet)
Project: Cross Section: Feature Station: Date: Crew:
263
262
261
260
259 0
20
40
60
80
Station (Feet) As-Built
Year 1
BKF MY-00
BKF MY-01
100
120
Figure 6. Cross Section 4 Project: Cross Section: Feature Station: Date: Crew:
Station 0 0.37 11.25 21 27.2 33.42 37.4 37.36 42.23 43.48 46.99 48.79 49.47 51.67 54.33 59.33 61.93 66.89 75.89 76.23
MY0-2008 Elevation 262.82 262.73 261.64 260.46 260.07 259.81 259.78 259.79 258.51 258.4 258.07 258.22 258.56 258.79 259.9 260.18 260.17 260.72 262.24 262.27
Chapel Creek Cross Section 4 Riffle 9+19 9/17/09 RL,BW,SV,RW
Notes CS4LP
BKF
TW
BKF
CS4RP
A (BKF) W (BKF) Max d Mean d W/D
Station 0.00 10.20 21.56 30.04 35.61 37.48 38.96 40.32 42.50 44.02 45.06 45.75 48.42 48.64 49.13 49.42 51.39 54.59 62.38 68.60 68.64 76.18
MY1-2009 Elevation 262.81 261.64 260.50 260.05 259.72 259.64 259.13 258.63 258.28 258.01 257.93 258.01 258.06 258.18 258.54 258.54 258.65 259.95 260.15 260.95 260.92 262.35
Notes CS4LP
MY0 18.9 21.6 1.8 0.9 24.7 Station
Summary (bankfull) MY1 MY2 MY3 20.8 19.9 1.9 1.0 19.0 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
BKF
TW
BKF
CS4RP Photo of XS-4, looking in the downstream direction
Cross Section 4 Station 9+19 Riffle 264
263
Elevation (Feet)
262
261
260
259
258
257 0
10
20
30
40
50
60
Station (Feet) As-Built
Year 1
BKF MY-00
BKF MY-01
70
80
90
Figure 7. Cross Section 5 Project: Cross Section: Feature Station: Date: Crew:
Station 0 11.46 11.9 14.29 17.16 21.29 24.94 29.43 38.04 40.27 41.78 43.14 43.92 46.07 47.81 49.84 50.92 51.32 51.55 51.59 51.85 52.29 53.88 55.53 57.29 59.48 70.78
MY0-2008 Elevation 263.84 263.25 263.17 262.76 262.06 261.07 260.4 260.09 259.37 258.13 257.51 257.19 257.16 256.88 256.84 256.71 256.5 256.53 256.86 257.39 257.89 258.83 259.61 260.82 261.32 261.63 263
Chapel Creek Cross Section 5 Riffle 11+23 9/17/09 RL,BW,SV,RW
Notes CS5LP
BKF
Station 11.46 18.59 25.70 32.76 34.95 37.85 40.42 41.37 43.11 45.35 47.47 49.40 50.91 56.60 59.41
A (BKF) W (BKF) Max d Mean d W/D
MY0 28.9 15.4 2.9 1.9 8.2
MY1-2009 Elevation Notes Station 263.25 X5LP 261.67 X5 260.34 X5 259.76 X5 259.71 X5 259.29 nkfull Left TOBL 258.00 X5 257.54 X5TOE 257.21 X5 256.92 X5 256.79 X5 256.63 TW 256.66 X5TOE 261.24 TOBR 261.60 X5RP
Summary (bankfull) MY1 MY2 MY3 29.8 16.3 2.7 1.8 8.9 MY3-2010 Elevation Notes Station
MY4
MY5
MY4-2011 Elevation
Notes
TW
BKF Photo of XS-5, looking in the downstream direction CS5RP
Cross Section 5 Station 11+23 Riffle 265
264
263
Elevation (Feet)
262
261
260
259
258
257
256 0
10
20
30
40
50
Station (Feet) As-Built
Year 1
BFK MY-00
BKF MY-01
60
70
80
Figure 8. Chapel Creek MY-01 Longitudinal Profile Proposed Thalweg
MY-00 Thalweg
MY-01 Thalweg
MY-01 Water Surface
MY-00 Bankfull
MY-01 Bankfull
269 268
CS-5 Sta. 11+23 Riffle
270
CS-4 Sta. 9+19 Riffle
271
CS-3 Sta. 6+28 Pool
CS-1 Sta. 3+27 Riffle
272
CS-2 Sta. 5+40 Riffle
273
267 266
Elevation (NAVD88)
265 264 263 262 261 260 259 258 257 256 255 254 253 252
Reach 1: Restoration Sta. 0+00-9+97
Reach 2: Enhancement Sta. 9+97-13+50
251 250 0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
Station
750
800
850
900
950
1000 1050 1100 1150 1200 1250 1300 1350 1400
Figure 9. Pebble Count-Cross Section 1 Project: Location:
Chapel Creek, Chapel Hill, NC CS-1
Inches
Particle Silt/Clay Very Fine Fine Medium Coarse .04 -.08 Very Coarse .08 - .16 Very Fine .16 - .22 Fine .22 - .31 Fine .31 - .44 Medium .44 - .63 Medium .63 - .89 Coarse .89 - 1.26 Coarse 1.26 - 1.77 Very Coarse 1.77 - 2.5 Very Coarse 2.5 - 3.5 Small 3.5 - 5.0 Small 5.0 - 7.1 Large 7.1 - 10.1 Large 10.1 - 14.3 Small 14.3 - 20 Small 20 - 40 Medium 40 - 80 Lrg- Very Lrg Bedrock
Millimeter < 0.062 .062 - .125 .125 - .25 .25 - .50 .50 - 1.0 1.0 - 2.0 2.0 - 4.0 4.0 - 5.7 5.7 - 8.0 8.0 - 11.3 11.3 - 16.0 16.0 - 22.6 22.6 - 32.0 32.0 - 45.0 45.0 - 64.0 64 - 90 90 - 128 128 - 180 180 - 256 256 - 362 362 - 512 512 - 1024 1024 - 2048
d16 33.2
Date:
S/C S A N D S G R A V E L S C O B L B L D R BDRK Totals d35 46.9
Particle Counts Riffles Pools 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 1 0 0 0 0 0 2 0 9 0 18 0 34 0 22 0 8 0 4 0 2 0 1 0 0 0 0 0 0 0 0 0 104 0 d50 55.6
d84 88.1
Total No. 0 0 0 0 2 1 0 0 1 0 0 2 9 18 34 22 8 4 2 1 0 0 0 0 104
9/17/2009
Item % 0% 0% 0% 0% 2% 1% 0% 0% 1% 0% 0% 2% 9% 17% 33% 21% 8% 4% 2% 1% 0% 0% 0% 0% 100%
% Cumulative 0% 0% 0% 0% 2% 3% 3% 3% 4% 4% 4% 6% 14% 32% 64% 86% 93% 97% 99% 100% 100% 100% 100% 100% 100%
d95 151.4
Particle Size Distribution Cross Section #1
% Finer Than (Cumulative)
100% 90% 80% 70% 60% MY-00 50%
MY-01
40% 30% 20% 10% 0% 0.1
1
10 Particle Size - Millimeter
100
1000
Figure 10. Pebble Count-Cross Section 2 Project: Location:
Chapel Creek, Chapel Hill, NC CS-2
Inches
Particle Silt/Clay Very Fine Fine Medium Coarse .04 -.08 Very Coarse .08 - .16 Very Fine .16 - .22 Fine .22 - .31 Fine .31 - .44 Medium .44 - .63 Medium .63 - .89 Coarse .89 - 1.26 Coarse 1.26 - 1.77 Very Coarse 1.77 - 2.5 Very Coarse 2.5 - 3.5 Small 3.5 - 5.0 Small 5.0 - 7.1 Large 7.1 - 10.1 Large 10.1 - 14.3 Small 14.3 - 20 Small 20 - 40 Medium 40 - 80 Lrg- Very Lrg Bedrock
Millimeter < 0.062 .062 - .125 .125 - .25 .25 - .50 .50 - 1.0 1.0 - 2.0 2.0 - 4.0 4.0 - 5.7 5.7 - 8.0 8.0 - 11.3 11.3 - 16.0 16.0 - 22.6 22.6 - 32.0 32.0 - 45.0 45.0 - 64.0 64 - 90 90 - 128 128 - 180 180 - 256 256 - 362 362 - 512 512 - 1024 1024 - 2048
d16 24.4
Date:
S/C S A N D S G R A V E L S C O B L B L D R BDRK Totals d35 45.0
Particle Counts Riffles Pools 0 0 0 0 0 0 1 0 6 0 6 0 0 0 0 0 0 0 0 0 0 0 3 0 2 0 18 0 29 0 25 0 6 0 3 0 2 0 1 0 0 0 1 0 0 0 0 0 103 0 d50 55.2
d84 86.4
Total No. 0 0 0 1 6 6 0 0 0 0 0 3 2 18 29 25 6 3 2 1 0 1 0 0 103
9/17/2009
Item % 0% 0% 0% 1% 6% 6% 0% 0% 0% 0% 0% 3% 2% 17% 28% 24% 6% 3% 2% 1% 0% 1% 0% 0% 100%
% Cumulative 0% 0% 0% 1% 7% 13% 13% 13% 13% 13% 13% 16% 17% 35% 63% 87% 93% 96% 98% 99% 99% 100% 100% 100% 100%
d95 160.1
Particle Size Distribution Cross Section #2
% Finer Than (Cumulative)
100% 90% 80% 70% 60% MY-00 50%
MY-01
40% 30% 20% 10% 0% 0.1
1
10 Particle Size - Millimeter
100
1000
Figure 11. Pebble Count-Cross Section 4 Project: Location:
Chapel Creek, Chapel Hill, NC CS-4
Inches
Particle Silt/Clay Very Fine Fine Medium Coarse .04 -.08 Very Coarse .08 - .16 Very Fine .16 - .22 Fine .22 - .31 Fine .31 - .44 Medium .44 - .63 Medium .63 - .89 Coarse .89 - 1.26 Coarse 1.26 - 1.77 Very Coarse 1.77 - 2.5 Very Coarse 2.5 - 3.5 Small 3.5 - 5.0 Small 5.0 - 7.1 Large 7.1 - 10.1 Large 10.1 - 14.3 Small 14.3 - 20 Small 20 - 40 Medium 40 - 80 Lrg- Very Lrg Bedrock
Millimeter < 0.062 .062 - .125 .125 - .25 .25 - .50 .50 - 1.0 1.0 - 2.0 2.0 - 4.0 4.0 - 5.7 5.7 - 8.0 8.0 - 11.3 11.3 - 16.0 16.0 - 22.6 22.6 - 32.0 32.0 - 45.0 45.0 - 64.0 64 - 90 90 - 128 128 - 180 180 - 256 256 - 362 362 - 512 512 - 1024 1024 - 2048
d16 46.6
Date:
S/C S A N D S G R A V E L S C O B L B L D R BDRK Totals d35 56.5
Particle Counts Riffles Pools 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 8 0 37 0 31 0 8 0 4 0 6 0 1 0 1 0 0 0 0 0 0 0 101 0 d50 64.4
d84 108.2
Total No. 0 0 0 2 1 0 0 0 0 0 0 0 2 8 37 31 8 4 6 1 1 0 0 0 101
9/17/2009
Item % 0% 0% 0% 2% 1% 0% 0% 0% 0% 0% 0% 0% 2% 8% 37% 31% 8% 4% 6% 1% 1% 0% 0% 0% 100%
% Cumulative 0% 0% 0% 2% 3% 3% 3% 3% 3% 3% 3% 3% 5% 13% 50% 80% 88% 92% 98% 99% 100% 100% 100% 100% 100%
d95 217.4
Particle Size Distribution Cross Section #4
% Finer Than (Cumulative)
100% 90% 80% 70% 60% MY-00 50%
MY-01
40% 30% 20% 10% 0% 0.1
1
10 Particle Size - Millimeter
100
1000
Figure 12. Pebble Count-Cross Section 5 Project: Location:
Chapel Creek, Chapel Hill, NC CS-5
Inches
Particle Silt/Clay Very Fine Fine Medium Coarse .04 -.08 Very Coarse .08 - .16 Very Fine .16 - .22 Fine .22 - .31 Fine .31 - .44 Medium .44 - .63 Medium .63 - .89 Coarse .89 - 1.26 Coarse 1.26 - 1.77 Very Coarse 1.77 - 2.5 Very Coarse 2.5 - 3.5 Small 3.5 - 5.0 Small 5.0 - 7.1 Large 7.1 - 10.1 Large 10.1 - 14.3 Small 14.3 - 20 Small 20 - 40 Medium 40 - 80 Lrg- Very Lrg Bedrock
Millimeter < 0.062 .062 - .125 .125 - .25 .25 - .50 .50 - 1.0 1.0 - 2.0 2.0 - 4.0 4.0 - 5.7 5.7 - 8.0 8.0 - 11.3 11.3 - 16.0 16.0 - 22.6 22.6 - 32.0 32.0 - 45.0 45.0 - 64.0 64 - 90 90 - 128 128 - 180 180 - 256 256 - 362 362 - 512 512 - 1024 1024 - 2048
d16 0.9
Date:
S/C S A N D S G R A V E L S C O B L B L D R BDRK Totals d35 12.3
Particle Counts Riffles Pools 0 0 0 0 0 0 7 0 13 0 11 0 0 0 1 0 1 0 1 0 8 0 9 0 18 0 8 0 13 0 6 0 3 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 103 0 d50 22.3
d84 58.9
Total No. 0 0 0 7 13 11 0 1 1 1 8 9 18 8 13 6 3 3 1 0 0 0 0 0 103
9/17/2009
Item % 0% 0% 0% 7% 13% 11% 0% 1% 1% 1% 8% 9% 17% 8% 13% 6% 3% 3% 1% 0% 0% 0% 0% 0% 100%
% Cumulative 0% 0% 0% 7% 19% 30% 30% 31% 32% 33% 41% 50% 67% 75% 87% 93% 96% 99% 100% 100% 100% 100% 100% 100% 100%
d95 113.4
Particle Size Distribution Cross Section #5 (Enhancement Reach)
% Finer Than (Cumulative)
100% 90% 80% 70% 60% MY-00 50%
MY-01
40% 30% 20% 10% 0% 0.1
1
10 Particle Size - Millimeter
100
1000
