20021883 Ver 1_Monitoring Report Year 4_20090521

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Prestonwood Golf Course
(Hatchet's Grove)
Stream Restoration Monitoring Report
EEP Project # 289
Monitoring Year - 04
2008

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NCEEP, 1652 Mail Service Center, Raleigh, NC 27699-1652 h1Ay
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March 2009
Monitoring Firm
AKCI
ASSOCIATES OF NC
Landmark Center II, Suite 220
4601 Six Forks Road
Raleigh, NC 27609
Phone: [phone]
Fax: [phone]
Project Contact: Adam Spiller
Email: aspiller(a)kci.com
Design Firm
Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, NC 27614
Phone: [phone]
Fax: [phone]
i
TABLE OF CONTENTS
1.0 PROJECT BACKGROUND ..........................................................................................1
1.1 Project Objectives .........................................................................................................1
1.2 Project Structure, Restoration Type, and Approach .....................................................1
1.3 Location and Setting .....................................................................................................1
1.4 Monitoring Plan View ...................................................................................................5
2.0 PROJECT CONDITIONS AND MONITORING RESULTS ....................................9
2.1 Vegetation Assessment .................................................................................................9
2.2 Stream Assessment .......................................................................................................9
2.2.1 Bankfull Event and Stability Assessment ...........................................................11
2.2.2 Stability Assessment Table .................................................................................11
2.2.3 Quantitative Measures Summary Tables ............................................................12
3.0 METHODOLOGY .......................................................................................................18
4.0 REFERENCES ..............................................................................................................18
LIST OF TABLES
Table I. Project Restoration Components .......................................................................... 1
Table II. Project Activity and Reporting History ............................................................... 3
Table 111. Project Contact Table ........................................................................................... 3
Table IV. Project Background Table .................................................................................... 4
Table V. Verification of Bankfull Events ........................................................................... I 1
Table VI. BEHI and Sediment Export Estimates ................................................................. 1 l
Table VII. Categorical Stream Feature Visual Stability Assessment .................................... 1 l
Table VIII. Baseline Morphology and Hydraulic Summary .................................................. 12
Table IX. Morphology and Hydraulic Monitoring Summary .............................................. 14
LIST OF FIGURES
Figure 1. Vicinity Map ..............
Figure 2. Monitoring Plan View
...............................2
...............................5
APPENDIX A - VEGETATION DATA
Al. Vegetation Data Tables ....................................................................................................20
A2. Representative Vegetation Problem Area Photos ............................................................23
A3. Vegetation Monitoring Plot Photos .................................................................................24
Prestonwood Golf Course (Hatchet's Grove)
EEP Project # 289
KC] Associates of North Carolina
Summer 2008 - MY04 - Final
APPENDIX B - GEOMORPHOLOGIC DATA
B l. Representative Stream Problem Area Photos ..................................................................29
B2. Stream Photo Station Photos ............................................................................................33
B3. Qualitative Visual Stability Assessment ..........................................................................34
B4. Cross-Section Plots ..........................................................................................................35
B5. Longitudinal Plots ............................................................................................................43
B6. Pebble Count Plots ...........................................................................................................48
APPENDIX C - CURRENT CONDITIONS PLAN VIEW
C1. Current Conditions Plan View .........................................................................................57
Prestonwood GolfCourse (Hatchet's Grove) KCIAssociates ofNorth Carolina
EEP Project 0 289 Summer 2008 - MY04 - Final
- EXECUTIVE SUMMARY
a In 2004, the North Carolina Ecosystem Enhancement Program (EEP) conducted restoration of
- Hatchet's Grove Tributary and a tributary to Hatchet's Grove (Meadow Creek). Soil and
Environmental Consultants, PA (S&EC) designed the restoration. The watershed of
approximately 3.7 square miles is located within the USGS 14-digit HUC 03020201080010 and
- the NCDWQ Sub-basin 03-04-02 of the Neuse River Basin. The project restored approximately
4,123 linear feet of channel, 3,828 feet on Hatchet's Grove and 295 feet on Meadow Creek
through the Prestonwood Golf Course in Cary, North Carolina. The restoration was designed to
- correct problems within the existing stream corridor from channelization and poor vegetation
. maintenance practices. Construction was completed in 2004, and the first through third years of
monitoring took place from 2005 through 2007. This report describes the findings of the fourth
. year of monitoring that took place in 2008.
The riparian buffer was planted with sixteen different species of trees and shrubs. The bankfull
channel area was live staked with three different species. Six vegetation monitoring plots were
established during the as-built survey with three buffer plots and three stream bank plots. During
the second year of monitoring, the EEP changed the vegetation monitoring protocol for this
project. The new protocol required discontinuing the three stream bank plots and installing three
new plots in the riparian buffer. The three new plots were established during the second year of
monitoring and all six of the plots have been assessed using the new monitoring protocol. The
fourth year of monitoring counted an average of 701 stems per acre in the riparian buffer. This
site does not have any exotic vegetation problems. The vegetation problem areas identified
during monitoring year 04 were the same problems found during monitoring year 03, which
included poor vegetative coverage on portions of the floodplain and some bare banks. This year's
monitoring also found areas where the riparian buffer has been mowed almost to the streambanks
and areas where the vegetation has been cut to approximately three feet high in play over areas.
These areas are depicted in Appendix C on the Current Conditions Plan View. The fourth year of
monitoring found the vegetation component of the project on track to meet the vegetation success
criterion of 260 stems/acre.
- Previous monitoring of the project channel revealed a significant number of instances of bank
instability. Observations in monitoring year 4 found many of these same areas of erosion with
some stabilizing and some worsening, totaling 11% of bank footage. This is approximately 2%
i less in year-4 as compared to year-2. This indicates that the initial adjustments that occurred in
year 2 have not systemically changed in the 2-3 years since, indicating widening isn't generally
advancing, but neither is the vegetative cover for these areas. Several areas of erosion were
. severe enough to warrant consideration for potential remediation given the proximity of these
outer meanders to the terrace that is the golf course fairway elevation. Although some of the
structures placement and construction were not ideal in terms of more recent practice and
- understanding, 88% within the reach are maintaining full grade control. The placement of some
• of these structures has limited some of the intended riffle habitat through degradation and scour in
riffle areas, in turn adding a greater number of discrete pool features and a lesser number of
- viable riffle features. The longitudinal profile exhibits sections of downcutting, but there is inter-
performer uncertainty in the comparability of profile datum elevations between year 0-1 and
years 2-4, so the extent of what is observed in the profile between these 2 periods that can be
- attributed to actual downcut versus datum and measurement inconsistencies is uncertain at this
- time. Where downcutting is obvious in the field it is believed to be related to the aforementioned
structural placement as opposed to a systemic downcutting due to something like channel size. It
• should be noted that the 3 riffle cross-sections on the mainstem do not exhibit degradation trends
- in bed elevation and max riffle bankfull depths for these cross-sections in year 4 closely represent
- Prestonwood Golf Course (Hatchet's Grove) KCI Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
design targets. Monitoring year-4 has found that the stream is generally functioning, but the
erosion indicates the stream is susceptible to change and should be closely monitored in the
aftermath of additional bankfull events to determine if the signs of stabilization after these initial
adjustments continue to progress.
Prestonwood Golf Course (Hatchet's Grove) KC/ Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
1.0 PROJECT BACKGROUND
1.1 Project Objectives
• Develop a channel with the appropriate dimension, pattern, and longitudinal profile
utilizing the existing channel condition survey and collected reference reach data as a
guide.
• Improve and create bed form diversity (riffles, runs, pools, and glides).
• Construct a floodplain (bankfull bench) that is accessible at the proposed bankfull
channel elevation (Priority 2 restoration).
• Ensure channel and stream bank stabilization by integrating grade control structures, root
wads, and native vegetation in conjunction with the eradication or modification of current
grounds maintenance practices.
• Establish a 30-foot native riparian plant community, when possible, from the edge of the
restored reach.
• Integrate existing golf course uses with the proposed restoration plan providing aesthetic
and educational values.
1.2 Project Structure, Restoration Type, and Approach
Hatchet's Grove and Meadow Creek were incised channels flowing through the Prestonwood
Golf Course that were restored using channel dimension and profile modifications and by
establishing a vegetated riparian zone adjacent to the streams. The channel profile is maintained
through the use of rock cross vanes. The new channel pattern was constructed using single vanes,
root wads, and vegetation along the channel banks.
1.3 Location and Setting
The Prestonwood site is located on a golf course, which is surrounded by apartments and single
family homes. Areas of forest and agricultural land are sporadically spaced throughout the
watershed. Development pressure will continue to urbanize the watershed, increasing the amount
of impervious area.
1.4 Proiect 14istnrv and Rardrarnnnrd
Table I. Project Restoration Components
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
pip Fir v ?
Segment / y
Reach ID W .1 04 Stationing Comment
Hatchet's Grove 3,200 R P2 3,828 00+00 - 38+28
Meadow Creek
T 300 R P2 295 00+00 - 02+95
...,.?......,.. ri- - rriunLy L
Prestonwood Golf Course (Hatchet's Grove) KCI Associates of North Carolina
EEP Project # 289 1 Summer 2008 - MY04 - Final
DIRECTIONS TO PRESTONWOOD GOLF COURSE SITE:
From I40, take exit 285 Aviation Parkway. Proceed South
on Aviation Parkway. Turn left onto Chapel Hill Road
(NC 54). Turn right onto Morrisville Pkwy. Turn right
on Double Eagle Ct. or into the Legends Apartment
Complex. Park in remnant cul-de-sac after passing
Stony Ct. on the right. Follow gravel road to golf course.
J Davis Dr.
Aviation Pkwy.
Morrisville Carpenter Rd. ?
\kC \\ ?&?-?
Project Location
Site access road
Morrisville Pkwy.
v
0
Double Eagle Ct.
Figure 1. Site Vicinity Map
Prestonwood Golf Course Wake County, EEP Project # 289
N ?i?¦
}} 0.25 0.125 0 0.25 0 5 KCI
lem Miles
Mel W E
l`?1 pan
S ASSOCIATES OF NC

Table II. Project Activity and Reporting History
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)

Activity or Report
Data Collection
Com lete Actual
Completion or
Deliver
Restoration Plan Oct 02
Final Design - 90%
Construction Ma 04
Planting May 04
Mitigation Plan / As-Built Report Se 06
Year 1 Monitoring 0 Apr 06
Year 2 Monitoring Se 06 Jan 07
Year 3 Monitoring Jul 07 Jan 08
Year 4 Monitoring Oct 08 J an 09
Table III. Project Contact Table
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Design Firms S&EC, PA
11010 Raven Ridge Rd.
Raleigh, North Carolina 27614
Phone: [phone]
Fax: [phone]
Construction Contractor McQueen Construction Co.
619 Patrick Rd.
Bahama, North Carolina 27503
Planting Contractor Carolina Silvics, Inc.
908 Indian Trail Rd.
Edenton, North Carolina 27932
Monitoring Performers
MY-01 S&EC, PA
11010 Raven Ridge Rd.
Raleigh, North Carolina 27614
Contact: Ms. Rebecca Wargo and Ms. Jessica Regan
Phone: [phone]
Fax: [phone]
MY-02-04 KCI Associates of NC
Landmark Center II, Suite 220
4601 Six Forks Rd.
Raleigh, NC 27609
Contact: Mr. Adam Spiller
Phone: [phone]
Fax: [phone]
Prestonwood Golf Course (Hatchet's Grove)
EEP Project # 289 3
KCI Associates of North Carolina
Summer 2008 - MY04 - Final
Table IV. Project Background Table
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Project County Wake County
D
i
A 3.7 s q. mi. Hatchet's Grove
ra
nage
rea 0.23 s q. mi. (Meadow Creek
Drainage Impervious Cover Estimate % 30%
S
O
d Third Order (Hatchet's Grove
tream
r
er First Order Meadow Creek
Ph sio hic Region Piedmont
Ecore ion Triassic Basin
Ros en Classification of As-built E5
Dominant Soil Types Chewacla, Wehadkee
f
i Sal's Branch
Re
erence S
te ID Mill Creek
03020201080010 Hatchet's Grove
USGS HUC for Project and Reference 03020201080 Sal's Branch
03040101090 Mill Creek
03-04-02 Hatchet's Grove
NCDWQ Sub-basin for Project and Reference 03-04-02 (Sal's Branch
03-07-02 (Mill Creek
NCDWQ Classification for Project and Reference C - NSW
An portion of the project segment 303d listed? No
Any portion of the project segment upstream of a 303d
listed se ment?
Yes, Hachet's Grove is a tributary to Crabtree Creek
Reasons for 303d Listing or Stressor Impaired Biological Integrity, Turbidity, Low OZ
% of Project Easement Fenced / Marked 0%
Prestonwood Golf Course (Hatchet's Grove) KC/Associates of North Carolina
EEP Project # 289 4 Summer 2008 - MY04 - Final
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• 2.0 PROJECT CONDITIONS AND MONITORING RESULTS
i 2.1 Vegetation Assessment
• This year's monitoring found the vegetation component of the site to be on track to meeting the
• success criteria. The six monitoring plots averaged 701 stems/acre.
i During the second monitoring year, the plots were renumbered according to the new vegetation
monitoring protocol set out by the EEP. Of the six plots at the site, three of these are the buffer
monitoring plots that were set up for first year monitoring and three are new plots that were set up
• for second year monitoring. For comparison to the first year monitoring report, the new Plot 1 is
the same as the first year Plot 1, the new Plot 3 is the same as the first year Plot 2, and the new
Plot 6 is the same as the first year Plot 3. The fourth year of vegetation monitoring revealed a
• large number of trees that had been cut back to approximately 3 feet tall. This affected
• monitoring plots 1, 5, and 6. The area around plot 1 has been periodically mowed and the woody
vegetation has been cut back as reported in past monitoring reports, but this is the first time that
i the play over area encompassing plots 5 and 6 has been affected. In plots 5 and 6, 38 out of 65 of
• the planted trees were cut. Another area of the buffer that is impacted by the golf course is the
riparian buffer along the right bank of Meadow Creek, which is routinely mowed. Two exotic
i species, Japanese honeysuckle (Lonicera japonica) and Chinese lespedeza (Lespedeza cuneata),
were found at the site. However, these species were only present sporadically throughout the site.
In addition to the easement area being encroached upon, most of the areas called out as bank
- erosion on the Current Conditions Plan View are raw banks and therefore devoid of vegetation.

• This can be seen in the representative photos for these problem areas. Also, at multiple places
grass clippings are being discarded into the riparian buffer along the easement boundary. There
• are also beavers at the site and, while they have not affected any one particular area more than

• another, the vegetation has been noticeably eaten back along some parts of the stream banks. EEP
has informed KCI that the golf course has a private contractor for beaver control and is employed
i to address beaver as they are observed on the site within the restored reach. The beavers noted in
• 2008 by KCI have since been removed.
• The vegetation plot data and problem areas are shown more in depth in Appendices A and C. See
i the vegetation data in Appendix A and Current Conditions Plan View in Appendix C. The
taxonomic standard being used for vegetation identifications is "Flora of the Carolinas, Virginia,
• Georgia, and surrounding areas by Alan S. Weakley.
•
2.2 Stream Assessment
• Previous monitoring of the project channel revealed a significant number of instances of bank
• instability. Observations in monitoring year 4 found many of these same areas of erosion with
some stabilizing and some worsening, totaling 11 % of bank footage. This is approximately 2%
• less in year-4 as compared to year-2. This indicates that the initial adjustments that occurred in
• year 2 have not systemically changed in the 2-3 years since, indicating widening isn't generally
advancing, but neither is the vegetative cover for these areas. Several areas of erosion were
• severe enough to warrant consideration for potential remediation given the proximity of these
outer meanders to the terrace that is the golf course fairway elevation. While the specific cause of

- the observed instability isn't known for certain, it is likely some tight curvature radii,
unconsolidated
t
d
remnan
pon
sediments, and tighter benching in some areas due to beltwidth
i constraints combined to challenge this E channel design target. These eroded banks should be
closely monitored to determine if corrective actions are warranted. In many cases eroded banks
•
- Prestonwood Golf Course (Hatchet's Grove) KC] Associates of North Carolina
EEP Project # 289 9
i Summer 2008 - MY04 - Final
•
•
can stabilize over time. This can happen as banks become undercut and then the eventual
slumping deposits the vegetated tops of the banks on the toe of the bank. The result is a bank
with a protected toe and a new, more stable bank with a gentler slope. Raw, eroded banks can
also stabilize over time as vegetation grows on them, even if they do not slump. Both of natural
methods of bank stabilization are occurring along many banks at the Prestonwood site. In most
places the banks at Prestonwood are vertical because the toe of bank has eroded away, but in
many cases these banks are now stable. Future monitoring will indicate whether the currently
eroding banks are able to stabilize over time. The bank erosion areas of immediate concern are
the ones that are closest to the golf course fairways and could soon affect areas outside of the
conservation easement. These areas can be seen in the Current Conditions Plan View.
The floodplain conditions along the stream vary in terms of erosion and deposition. The top third
of the project has extensive deposition throughout the floodplain, which is visible in large sand
deposits. The lower third of the stream has a stable floodplain with no significant aggradation or
degradation noted during the fourth monitoring year. Although some of the structures placement
and construction were not ideal in terms of more recent practice and understanding, 88% within
the reach are maintaining full grade control. The placement of some of these structures has
limited some of the intended riffle habitat through degradation and scour in riffle areas, in turn
adding a greater number of discrete pool features and a lesser number of viable riffle features.
The longitudinal profile exhibits sections of downcutting, but there is inter-performer uncertainty
in the comparability of profile datum elevations between year 0-1 and years 2-4, so the extent of
what is observed in the profile between these 2 periods that can be attributed to actual downcut
versus datum and measurement inconsistencies is uncertain at this time. Where downcutting is
obvious in the field it is believed to be related to the aforementioned structural placement as
opposed to a systemic downcutting due to something like channel size. It should be noted that the
3 riffle cross-sections on the mainstem do not exhibit degradation trends in bed elevation and max
riffle bankfull depths for these cross-sections in year 4 closely represent design targets.
Monitoring year-4 has found that the stream is generally functioning, but the erosion indicates the
stream is susceptible to change and should be closely monitored in the aftermath of additional
bankfull events to determine if the signs of stabilization after these initial adjustments continue to
progress. This year's bed degradation also revealed two approximately 1" PVC pipes at the bed
elevation near Station 16+05. The purpose of these pipes is unknown. The root wads at the site
are marginally functional. While they are still providing stream and terrestrial habitat, many are
positioned above the stream's baseflow and are beginning to rot. All of the problem areas
discussed above are also applicable to Meadow Creek, which is experiencing similar issues.
One new beaver dam has been built just downstream of the third bridge across the project stream.
Four more beaver dams were being constructed, but have not begun to cause backwatering. The
new beaver dam is ponding the lower portion of the stream, as described in the Current
Conditions Plan View. EEP has informed KCI that the golf course has a private contractor for
beaver control and is employed to address beaver or beaver dams as they are observed on site
within the restoration reach. The beaver and dams noted in 2008 by KCI have since been
removed.
See additional stream assessment and photos in Appendix B and Current Conditions Plan View in
Appendix C.
Prestonwood Gof Course (Hatchet's Grove) KCI Associates of North Carolina
EEP Project # 289 10 Summer 2008 - MY04 - Final
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2.2.1 Bankfull Event and Stability Assessment
2.2.1.a Verification of Bankfull Events Table
Table V. Verification of Bankfull Events
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Date of Data
Collection
Date of Occurrence
Method
Photo Number
10/1/2005 Unknown Bankfull Indicators N/A
6/14/2006 6/15/2006 Site visit evaluating bankfull indicators
after storm event N/A
8/26/2008 4/28/2008 Crest Gauge N/A
9/9/2008 9/7/2008 Crest Gauge N/A
2.2.1.b BEHI and Sediment Export Table
Table VI. BEHI and Sediment Export Estimates
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
BEHI will be completed in Monitoring Year 05
2.2.2 Stability Assessment Table
Table VIIa. Categorical Stream Feature Visual Stability Assessment
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Segment/Reach: Hatchet's Grove (3.828 ft.l
Feature Initial MY-01 MY-02 MY - 03 MY - 04 MY - OS
A. Riffles 100% N/A 70% 56% 44%
B. Pools 100% N/A 96% 100% 118%
C.Thalweg 100% N/A 68% 68% 68%
D. Meanders 100% N/A 61% 61% 61 %
E. Bed General 100% N/A 89% 94% 98%
F. Bank Condition 100% N/A 87% 90% 89%
G. Vanes / J Hooks etc. 100% N/A 92% 92% 92%
H. Wads and Boulders 100% N/A 74% 74% 73%
Table V11b. Categorical Stream Feature Visual Stability Assessment
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Segment/Reach: Meadow Creek (295 ft_) Feature Initial MY-01 MY-02 MY - 03 MY - 04 MY - OS

A. Riffles 100% N/A
B. Pools 100% N/A - - -
C.Thalwe 100% N/A 60% 60% 60%
D. Meanders 100% N/A 80% 80% 80%
E. Bed General 100% N/A 80% 75% 70%
Bank Condition 100% N/A 80% 80% 70%
G. Sills 100% N/A 60% 60% 50%
H. Wads and Boulders 100% N/A 80% 80% 80%
Please note that the pool feature in Table VIIa has ratings above 100%. This occurs when there
are more features identified in the longitudinal profile survey for that monitoring year than were
originally counted during the as-built survey.
Prestonwood Golf Course (Hatchet's Grove) KC] Associates of North Carolina
EEP Project # 289 1 1 Summer 2008 - MY04 - Final
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3.0 METHODOLOGY
The CVS-EEP protocol (littp://cys.biO.Llnc.edu/metliods.litm) was used to collect vegetation
data from Prestonwood this year, the fourth year of monitoring. This methodology was
incorporated during the third year of monitoring. The method used before that time was the
EEP 2004 Stem Counting Protocol.
4.0 REFERENCES
Lee, Michael T., R. K. Peet, S. D. Roberts, and T. R. Wentworth. 2006. CVS-EEP Protocol
for Recording Vegetation, Version 4.0 (littp://cvs.biO.Linc.edu/metliods.htm)
Weakley, Alan S. 2006. Flora of the Carolinas, Virginia, Georgia, and Surrounding Areas.
(http://www.Herbarium.unc.edu/FIoraArcli'ves/WeakIe Fy lora 2006-Jan.pdf
Prestonwood Golf Course (Hatchet's Grove) 18 KCI Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
Appendix A
Vegetation Data
Prestonwood Golf Course (Hatchet's Grove)
EEP Project # 289
19
KC/Associates of North Carolina
Summer 2008 - MY04 - Final
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At -Vegetation Data Tables
Table Al. Vegetation Metadata
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Report Prepared By Brian Roberts
Date Prepared 10/28/2008 11:33
Database Name KCI_2008.mdb
Database Location M:\2007\12071067_2007 EEP OPEN ENDWeg_database
PROJECT SUMMARY-------------------------------------
Project Project Name Description Length Stream-to-Edge Area (sq Required Plots Sampled
Code (ft) Width (ft) m) (calculated) Plots
289 Prestonwood Stream restoration site on 3800 25 17,650 6 6
Golf Course in Cary, NC
Table A2. Vegetation Vigor by Species
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Species 4 3 2 1 0 Missing
Alnus serrulata wV :a 2
Aronia arbuti olia 2 5
Betula ni ra 1 2
Cornus amomum 4 2 1 2
Dios ros vir iniana 1 6 1
N ssa s Ivatica n- 1
uercus lauri olia 11 14 5 2
uercus michauxii 11 12 5 2
uercus hellos 1 3 2 1
Salix ni ra
Hamamelis vir iniana 1
2
4 -

40
; ,
TOT: I ll 34 47 23 1 8
Table A3. Vegetation Damage by Species
Proiect Number and Name: 299 - Prestanwand C:nlf CanrsP fuatrhWe (_rnval

o

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C
A V 0
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Alnus serrulata 2 2
Aronia arbuti olia 7 4 3
Betula ni ra 3 1 2
Cornus amomum 9 4 5
Dios ros vir iniana 14 9 5
Hamamelis vir iniana 6 2 3 1
N ssa s lvatica 1 1
uercus lauri olia 32 16 12 3 1
uercus michauxii 30 16 10 4
uercus hellos 7 3 3 1
Salix ni ra 2 1 1
TOT: I ll 113 56 47 9 1
Prestonwood Golf Course (Hatchet's Grove)
EEP Project # 289
20
KCI Associates of North Carolina
Summer 2008 - MY04 - Final
Table A4. Vegetation Damage by Plot
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)

?-
Ts 3

a dU ? U w ?
289-01-0001- ear:4 18 9 9
289-01-0002- ear:4 8 7 1
289-01-0003- ear:4 12 12
289-01-0004- ear:4 10 10
289-01-0005- ear:4 30 10 17 2 1
289-01-0006-year:4 35 8 21 6
TOT: 6 113 56 47 9 1
Table A5. Stem Count by Plot and Species
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
M M M M
n n M M
i. it n L
d 67 C7 d ? d
O O O O O O

H O
O O O O
O O O O
O O
O
O O O O O O
y y 0000 000 00 00 0000 00

U
C? N N N N N

V? F ?t of G. R CL tL O. CL
Alnus serrulata 10 2 5 1 9
Aronia arbuti olia 7 2 4 4 3
Baccharis halimi olio 81 6 14 6 43 7 5 4 16
Betula ni ra 5 3 2 2 1 2
Cornus amomum 7 1 7 7
Dios ros vir iniana 14 3 5 3 10 1
Nyssa sylvatica 1 1 1 1
Pinustaeda 4 1 4 4
uercus lauri olia 31 4 8 3 8 7 13
uercus michauxii 32 4 8 1 15 6 10
uercus hellos 7 3 2 - 2 2 3
Salix ni ra 10 3 3 6 3 1
Sambucus canadensis 1 1 1 1
Morella ceri era 28 4 7 5 4 1 18
Hamamelis vir iniana 6 2 3 3 3
Liriodendron tuli i era 1 1 1 1
Unknown 4 1 4 4
TOT: 17 249 17 43 57 22 17 33 77
Prestonwood Golf Course (Hatchet's Grove) 21 KCI Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
Table A6a. Vegetative Problem Areas
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Segment/Reach: Hatchet's Grove 3,828 ft.
Feature/Issue Station # / Range Probable Cause Photo #
Mowed Riparian Buffer 10+00 - 12+35 Sewer line easement
13+00- 14+35 Play over area VP I
39+25 - 47+75 Play over area
Sparse Vegetation 29+70 - 29+90 Poor Soil
29+90 - 30+20 Poor Soil VP2
33+80 - 34+15 Poor Soil
Table A6b. Vegetative Problem Areas
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Se ment/Reach: Meadow Creek 295 ft.
Feature/Issue Station # / Range Probable Cause Photo #
Mowed Riparian Buffer 00+00- 01+50 Golf course maintenance
02+40 - 03+50 Sewer line easement
Prestonwood Golf Course (Hatchet's Grove) 22 KC1 Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
A2 - Representative Vegetation Problem Area Photos
¢.j ?..'` . 4, Imo. "iH? ;',
y "?? ? l.Nr t ? ?•.? ? ? K y?4r & k, n`?}?,?3."FA`?K ???'"Mi?"'-?.
. i S W . ` W f
?• $ °f? ?y p? mow. f° air °?y?:
M, Or
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kro
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VP 1 - Photo taken near station 48+00 looking upstream towards Veg Plots 5 and 6. Left bank vegetation has
been cut for play over area. 9/2/08 - MY 04
VP2 - Sparsely vegetated noodplam near Station 30+00. 10/27/08 - MY 04
Prestonwood Golf Course (Hatchet's Grove) 23 KG Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
A3 - Vegetation Monitoring Plot Photos
+?: k
k -4
Vegetation Plot 2. 9/1/08 - MY 04.
Prestonwood Golf Course (Hatchet's Grove)
EEP Project # 289
24

KCI Associates of North Carolina
Summer 2008 - MY04 - Final
Vegetation Plot 1. 9/1/08 - MY 04.
F t
a i
ION
j ?f{iii-.FXa? y
s -
-r

1

Prestonwood Golf Course (Hatchet's Grove) 25 KC/Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
Vegetation Plot 2, supplemental photo. 9/1/08 - MY 04.
Vegetation Plot 3. 9/l/08 - MY 04.

f
? K
4 i
4;41' NWYN
s + Mpw t 4 1; M w??r ?. __
a
IRA
Vegetation Plot 4. 9/1/08 - MY 04.
Prestomi ood Golf Course (/latches's' Grove) 26 KC/ Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
Vegetation Plot 5. 9/1/08 - MY 04.
t
rq °f R
r' J.

h
- AM
Prestonwood Golf Course (Hatchet's Grove) 27 KCI Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
Vegetation Plot 6. 9/1/08 - MY 04.
Appendix B
Geomorphologic Data
Prestomvood Golf Course (Hatchet's Grove) 28 KCI Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
B1- Representative Stream Problem Area Photos
SP1 - Bank erosion. Photo taken near Station 18+60. 10/27/08 - MY 04.
SY2 - Floodplain scour. Photo taken near Station 14+75. 10/27/08 - MY 04.
Pi estonwood Goll"Course (Hatchet's Grove) 29
EEP Project # 289
KCI Associates of North Carolina
Summer 2008 - MY04 - Final
SP3 - Scour around rootwad. Photo taken near Station 37+50. 10/27/08 - MY 04.
SP4 - Mid-channel bar. Photo taken near Station 32+000. 10/27/08 - MY 04.
Prestonwood Golf Course (Hatchet's Grove) 30 KC/Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
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SP5 -Beaver dam. Photo taken near Station 48+40. 10/27/08 - MY 04.
SP6 - Bank erosion. Photo taken near Station 2+00. 10/27/08 - MY 04.
Presionwood Golf Course (Hatchet's Grove) 31 KCI Associates of North Carolina
EEP Project # 289 Summer 2008 - AIY04 - Final
SP7 - Back scour around rootwad and bank erosion. Rootwad partially obscured by coir matting and
vegetation. Photo taken near Station 02+10. 10/27/08 - MY 04.
Prestontivood Gall Course (Hatchet's Grove) 32 KC/ Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
Photo Point 1 - Taken looking upstream from golf cart bridge at the upper 300 feet of the Hatchet's Grove.
10/27/08 - MY 04.

Photo Point 2 - Taken looking downstream from golf cart bridge at the lower 300 feet of the Hatchet's Grove.
10/27/08 - MY 04.
Prestonwood Golf Course (Hatchet's Grove) 33 KCI Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
B2 - Stream Photo Station Photos
B3 - Qualitative Visual Stability Assessment
Table B2. Qualitative Visual Stability Assessment
Project Number and Name: 289 - Prestonwood Golf Course (Hatchet's Grove)
Segment/Reach: Hatchet's Grove (3,828 ft.)

Feature
Category

etric (per As-built and reference baselines) (# Stable)
Number
Performing as
Intended

Total Number
per As-built *
Total Number/
feet in unstable
state
% Perform.
in Stable
Condition Feature
Perform.
Mean or
Total
A. Riffles 1. Present? 20 44 N/A 45%
2. Armor stable (e.g. no displacement)?** N/A 44 N/A N/A
3. Facet grade appears stable? 20 44 N/A 45%
4. Minimal evidence of embedding/fining? 20 44 N/A 45%
5. Length appropriate? 18 44 N/A 41% 44%
B. Pools 1. Present? (e.g. no severe aggradation) 51 42 N/A 121%
2. Sufficiently deep (Dmax pooLMean Bkf > 1.6?) 49 42 N/A 117%
3. Length appropriate? 49 42 N/A 117% 118%
C. Thalweg 1. Upstream of meander bend centering? 30 44 N/A 68%
2. Downstream of meander centering? 30 44 N/A 68% 68%
D. Meanders
1. Outer bend in state of limited/controlled erosion?
18
44
N/A
41%
2. Of those eroding, # w/ concomitant point bar
formation?
4
26
N/A
15%
3. Apparent Re within spec? 38 44 N/A 86%
4. Sufficient floodplain access and relief? 44 44 N/A 100% 61%
E. Bed
General 1.General channel bed aggradation areas (bar
formation)
N/A
N/A
1 / 10
100%
2. Channel bed degradation - areas of increasing
down cutting or head cutting?
N/A
N/A
5 / 120
97%
98%
F. Bank 1. Actively eroding, wasting, or slumping bank N/A N/A 36 / 885 89% 89%
G. Vanes 1. Free of back or arm scour? 23 25 N/A 92%
2. Height appropriate? 24 25 N/A 96%
3. Angle and geometry appear appropriate?*** N/A 25 N/A N/A
4. Free of piping or other structural failures'? 22 25 N/A 88% 92%
Wads '
H 1. Free of scour? 20 35 N/A 57%
.
Would,!, ? 1otiiinu' 31 35 N/A 89% 73%
*Total number of features per as-built estimated from as-built protile and planview sheets.
** Hatchet's Grove is a sand bed stream so there is no armor on the riffles.
***See note concerning cross vanes in App 132. (These structures generally serve as toe stabilization and are functioning as such)
Prestonx ood Golf Course (Hatchet's Grove) 34 KC/ Associates of North Carolina
EEP Project # 289 Summer 2008 - MY04 - Final
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Current Conditions Plan View
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