20061358 Ver 1_Year 1 Monitoring Report_20080527

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CROWNS WEST STREAM RESTORATION PROJECT
ANNUAL MONITORING REPORT FOR 2007 (YEAR 1)
Contract Number D06003-2
Submitted to: NCDENR - Ecosystem Enhancement Program
2728 Capital Blvd, Suite 1H 103
Raleigh, NC 27604
r-4-1
?`COSy??f'ill ;December 2007

Prepared by: Baker Engineering NY, Inc.

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Baker Engineering NY, Inc.
_ 6000 Regency Parkway
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* Suite 200
Cary, North CarWma 27516
Phone. 919A635468
Fax. [phone]
December 2007
DRAFT
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TABLE OF CONTENTS
1.0 EXECUTIVE SUMMARY ...............................................................................................1
2.0 PROJECT BACKGROUND ........................................................................................... .. 2
2.1 Project Objectives .......................................................................................................... .. 2
2.2 Project Structure, Restoration Type and Approach ........................................................ .. 2
2.3 Location and Setting ....................................................................................................... .. 3
2.4 Project History and Background .................................................................................... .. 3
2.5 Project Plan .................................................................................................................... .. 3
3.0 PROJECT CONDITION AND MONITORING RESULTS ....................................... .. 7
3.1 Vegetation Assessment .................................................................................................. .. 7
3.1.1 Description of Vegetative Monitoring .................................................................... .. 7
3.1.2 Vegetative Success Criteria .................................................................................... .. 7
3.1.3 Vegetative Observations and Results ...................................................................... .. 8
3.1.4 Vegetative Problem Areas ...................................................................................... .. 9
3.1.5 Vegetation Photographs .......................................................................................... .. 9
3.2 Stream Assessment ......................................................................................................... .. 9
3.2.1 Morphometric Success Criteria ............................................................................... .. 9
3.2.2 Morphometric Results ............................................................................................. 10
3.2.3 Hydrologic Criteria ................................................................................................. 11
3.2.4 Hydrologic Monitoring Results .............................................................................. 11
3.2.5 Stream Problem Areas ............................................................................................ 11
3.2.6 Stream Photographs ................................................................................................ 12
3.2.7 Stream Stability Assessment ................................................................................... 12
3.2.8 Quantitative Measures Summary Tables ................................................................ 12
4.0 OVERALL CONCLUSIONS AND RECOMMENDATIONS .................................... 13
5.0 WILDLIFE OBSERVATIONS ......................................................................................13
6.0 REFERENCES .................................................................................................................13
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FIGURES
APPENDIX A - Vegetation Raw Data
APPENDIX B - Geomorphic Raw Data
Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT

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LIST OF TABLES
Table 1. Design Approach for the Crowns West Restoration Site
Table 2. Project Activity and Reporting History
Table 3. Project Contacts
Table 4. Project Background
Table 5. Vegetation Species Planted Across the Restoration Site
Table 6. Verification of Bankfull Events
Table A.1. Vegetation Metadata
Table A.2. Vegetation Vigor by Species
Table A.3. Vegetation Damage by Species
Table A.4. Vegetation Damage by Plot
Table A.S. Stem Count by Plot and Species
Table A.6. Stem Count for Each Species Arranged by Plot
Table B.1. Categorical Stream Feature Visual Stability Assessment
Table B.2. Baseline Stream Summary
Table B.3. Morphology and Hydraulic Monitoring Summary
LIST OF FIGURES
Figure 1. Location of Crowns West Restoration Site.
Figure 2A. As-built Plan Sheet 1 for the Crowns West Restoration Site.
Figure 2B. As-built Plan Sheet 3 for the Crowns West Restoration Site.
Figure 2C. As-built Plan Sheet 4 for the Crowns West Restoration Site.
Figure 21). As-built Plan Sheet 5 for the Crowns West Restoration Site.
Figure 2E. As-built Plan Sheet 6 for the Crowns West Restoration Site
Figure 2F. As-built Plan Sheet 7 for the Crowns West Restoration Site
Figure 2G. As-built Plan Sheet 8 for the Crowns West Restoration Site
I Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT
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1.0 EXECUTIVE SUMMARY
This Annual Report details the monitoring activities during the 2007 growing season
' (Monitoring Year 1) on the Crowns West Stream Restoration Site ("Site"). As per the approved
Restoration Plan for the Site, this Annual Monitoring Report presents data on stream geometry,
stem count data from vegetation monitoring stations, and discusses any observed tendencies
' relating to stream stability and vegetation survival success.
Crowns West Branch had been channelized and riparian vegetation had been cleared in the lower
half of the Site. The upstream area had a degraded, early successional buffer that included
' several exotic species. Prior to restoration, Crowns West Branch was incised along its length
and lacked bedform diversity. As a result, channel degradation was widespread throughout the
Site. After construction, it was determined that 3,835 linear feet (LF) of stream were restored.
A total of 11 monitoring plots 100 square meters (m2) (IOM X 10m) in size were used to predict
survivability of the woody vegetation planted on-site. The Year 1 vegetation monitoring
indicated an average survivability of 738 stems per acre. The data shows that the Site is on track
' for meeting the minimum success interim criteria of 320 trees per acre by the end of Year 3 and
the final success criteria of 260 trees per acre by the end of Year 5.
During Year 1 monitoring, kudzu (Pueraria montana) and privet (Ligustrum L) were observed
on the Site. The kudzu is located east of Haw Branch Road and is present in the NC Division of
Highways (NCDOT) right-of-way and also occurs within the project easement. The privet is
located along the southern easement boundary, west of Haw Branch Road or along the right side
' of the restored channel west, of Haw Branch Road. These areas are scheduled to be treated
during Year 2 of monitoring.
Dimension, pattern, profile and in-stream structures remained stable during Year 1. The on-site
crest gauge documented the occurrence of at least one bankfull flow event during Year 1 of the
post-construction monitoring period. Inspection of conditions during a site visit revealed visual
' evidence of out-of-bank flow, confirming the crest gauge reading of 0.40 feet (4.8 inches) above
the bankfull stage. During Year 1 monitoring, no repairs have been necessary. Year 1
monitoring revealed no problem areas within the boundaries of the Site.
' The restoration plan for the Site did not include wetland areas. Therefore, no groundwater
monitoring stations or rain gauges were installed on the Site.
In summary, the Site is on track to meet the hydrologic, vegetative, and stream success criteria
' specified in the Site's Restoration Plan.
Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT
2.0 PROJECT BACKGROUND
The project involved the proposed restoration of 3,835 linear feet of stream. Table 1 summarizes the
restoration areas on the Site. Selected site photographs are shown in Appendix A and B. A total of
10.8 acres of stream and riparian buffer are protected through a conservation easement.
2.1 Project Objectives
The specific goals for the Crowns West Site Restoration Project were as follows:
• Restore 3,904 LF of channel dimension, pattern and profile
• Improve floodplain function by matching floodplain elevation with bankfull stage
• Establish native stream bank and floodplain vegetation in the 10.8-acre permanent
conservation easement
• Improve water quality in the Crowns West and New River watershed by reducing sediment
and nutrient inputs
• Improve aquatic and riparian habitat by creating deeper pools and areas of re-aeration,
planting a riparian buffer, and reducing bank erosion.
2.2 Project Structure, Restoration Type and Approach
For analysis and design purposes, Baker Engineering divided on-site streams into reaches. The
reaches were numbered sequentially from west to east, with a "M" designation for "mainstem." M1
begins on the upstream portion of the project, and flows east, ending at Haw Branch Road. M2
begins at Haw Branch Road and flows east, to the end of the wood line at the downstream end of the
project. One unnamed tributary (UT1) flowing from Haw Branch Road to the confluence with
Crowns West Branch was originally proposed for restoration and was included in the 3,904 LF of
stream restoration proposed for the Site. The landowner withdrew this short section of UT1 in
exchange for additional property and stream length at the upstream section of M 1 on Crowns West
Branch. UT1 was to be tied into the project and the tie-in point was stabilized.
The restoration design allows stream flows larger than bankfull flows to spread onto the floodplain,
dissipating flow energies and reducing stress on streambanks. In-stream structures were used to
control streambed grade, reduce streambank stress, and promote bedform sequences and habitat
diversity. The in-stream structures consisted of root wads, log vanes, log weirs, and constructed
riffles which promote a diversity of habitat features in the restored channel. Where grade control
was a consideration, constructed riffles were installed to provide long-term stability. Streambanks
were stabilized using a combination of erosion control matting, temporary and permanent seeding,
bare-root planting, and transplants. Transplants provide living root mass to increase streambank
stability and create holding areas for fish and aquatic biota. Native vegetation was planted across the
Site, and the entire restoration site is protected through a permanent conservation easement.
Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT

' Table 1. Design Approach for the Crowns West Restoration Site
Crowns West Restoration Site: Project No. D06003-2
Project
Segment or Linear Reach 1 Mitigation Type oApproach"I Footage Stal
.'
M1 R P1, P2 2,320 10+46 - 24+37
' M2 R P1, P2 1,515 24+09 - 36+13
Total linear feet of channel
restored: 3,835
R = Restoration **P 1 = Priority I
P2 = Priority lI
2.3 Location and Setting
' The Site is located in Onslow County, NC (Figure 1), approximately six miles northwest of the town
of Richlands. The Site lies in the White Oak River Basin within North Carolina Division of Water
' Quality sub-basin 03-05-02 and NCEEP targeted local watershed 0303000 10 100 10.
2.4 Project History and Background
1 Land use on the Site consisted primarily of row crop agriculture with adjacent woodlands. Crowns
West Branch had been channelized and riparian vegetation had been cleared in the lower half of the
Site. The upstream area had a degraded, early successional buffer that included several exotic
' species. Prior to restoration, Crowns West Branch was incised and lacked bedform diversity. As a
result, channel degradation was widespread throughout the Site.
The chronology of the Crowns West Project is presented in Table 2. The contact information for all
designers, contractors, and relevant suppliers is presented in Table 3. Relevant project background
information is presented in Table 4.
' 2.5 Project Plan
Plans depicting the as-built conditions of the major project elements, locations of permanent
' monitoring cross-sections, and locations of permanent vegetation monitoring plots are presented in
Figures 2A, 2B, 2C, 2D, 2E, 2F and 2G of this report.

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Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT
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Table 2. Project Activity and Reporting History
Crowns West Restoration Site: Project No. D06003-2
Data Actual
Scheduled C'ollection ('ornpletion or

Restoration Plan Prepared N/A N/A Jul-06
Restoration Plan Amended N/A N/A N/A
Restoration Plan Approved N/A N/A Aug-06
Final Design - (at least 90% complete) N/A N/A Oct-06
Construction Begins Nov-06 N/A Nov-06
Temporary S&E mix applied to entire project
N/A N/A Mar-07
area
Permanent seed mix applied to entire project area Mar-07 N/A Mar-07
Planting of live stakes Mar-07 N/A Mar-07
Planting of bare root trees Mar-07 N/A Mar-07
End of Construction Mar-07 N/A Mar-07
Survey of As-built conditions (Year 0

Monitoring-baseline) Mar-07 Mar-07 Mar-07

Year 1 Monitoring Dec-07 Oct-07 Dec-07
Year 2 Monitoring Scheduled Scheduled N/A
Dec-08 Oct-08
Year 3 Monitoring Scheduled Scheduled N/A
Dec-09 Oct-09
Year 4 Monitoring Scheduled Scheduled N/A
Dec-10 Oct-10
Year 5 Monitoring Scheduled Scheduled N/A
Dec-11 Oct-11
Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT

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Table 3. Proiect Contacts
Crowns West Restoration Site: Project No. D06003-2
Designer
Baker Engineering NY, Inc. 8000 Regency Parkway, Suite 200
Cary, NC 27518
Contact:
Kevin Tweedy, Tel. [phone]
Construction Contractor
River Works, Inc. 8000 Regency Parkway, Suite 200
Cary, NC 27518
Contact:
Will Pedersen, Tel. [phone]
Planting Contractor
River Works, Inc. 8000 Regency Parkway, Suite 200
Cary, NC 27518
Contact:
Will Pedersen, Tel. [phone]
Seeding Contractor
River Works, Inc. 8000 Regency Parkway, Suite 200
Cary, NC 27518
Contact:
Will Pedersen, Tel. [phone]
Seed Mix Sources Mellow Marsh Farm, 919-742-1200
Nurse Stock Suppliers International Paper, 1-888-888-7159
Monitoring Performers
Baker Engineering NY, Inc. 8000 Regency Parkway, Suite 200
Cary, NC 27518
Stream Monitoring Point of Contact: Dwayne Huneycutt, Tel. [phone]
Vegetation Monitoring Point of Contact: Dwayne Huneycutt, Tel. [phone]
I Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT
Table 4. Project Background
Crowns West Restoration Site: Project No. D06003-2
Project Coun : Onslow County, NC
Drainage Area:
Reach: M1
Reach: M2
Estimated Drainage % Impervious Cover:
MI
M2
0.65 miz
0.98 miz

>5%
>5%
Stream Order:
MI
M2
1
2
Ph sio ra hic Region Coastal Plain
Ecore ion Carolina Flatwoods
Ros en Classification of As-Built C5
Cowardin Classification
Riverine, Upper Perennial,
Unconsolidated Bottom, Sand
Dominant Soil Types
MI
M2
Mk,CrB
Mk,CrB, AuB
Reference site ID Beaverdam Branch
USGS HUC for Project and Reference sites 03030001010010
NCDWQ Sub-basin for Project and Reference 03-05-02
NCDWQ classification for Project and Reference C5c
An portion of an project segment 303d listed? No
Any portion of any project segment upstream of a 303d
listed segment?
No
Reasons for 303d listing or stressor? N/A
% of project easement fenced 0%
Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT

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3.1 Vegetation Assessment
3.0 PROJECT CONDITION AND MONITORING RESULTS
3.1.1 Description of Vegetative Monitoring
As a final stage of construction, the stream margins and riparian area of the Site were planted
with bare root trees, live stakes, and a seed mixture of temporary and permanent ground
cover herbaceous vegetation. The woody vegetation was planted randomly six to eight feet
apart from the top of the stream banks to the outer edge of the project's re-vegetation limits.
In general, bare-root vegetation was planted at a target density of 680 stems per acre, in an 8-
foot by 8-foot grid pattern. The tree species planted at the Site are shown in Table 5. The
permanent seed mix of herbaceous species applied to the project's riparian area included soft
rush (Juncus effuses), redtop (Agrostis alba), virginia wild rye (Elymus virginicus),
switchgrass (Panicum virgatum), smartweed (Polygonum pennsylvanicum), tick seed (Bidens
frondosa), lance leaf coreopsis (Coreopsis lanceolata), fox sedge (Carex vulpinoidea), hop
sedge (Carex lupulina), and shallow sedge (Carex lurida). This seed mixture was broadcast
on the Site at a rate of 15 pounds per acre. All planting was completed in March 2007.
At the time of planting, eleven vegetation plots - labeled 1 through 11 - were delineated on-
site to monitor survival of the planted woody vegetation. Each vegetation plot is 0.025 acre
in size, or 10 meters x 10 meters. All of the planted stems inside the plot were flagged to
distinguish them from any colonizing individuals and to facilitate locating them in the future.
The trees also were marked with aluminum metal tags to ensure that the correct identification
is made during future monitoring of the vegetation plots.
On a designated corner within each of the eleven vegetation plots, one herbaceous plot was
also delineated. The herbaceous plots measure 1 meter x Imeter in size. These plots are
photographed throughout the growing season. The locations of the eleven vegetation plots
are presented in Figures 2A through 2G.
3.1.2 Vegetative Success Criteria
To characterize vegetation success criteria objectively, specific goals for woody vegetation
density have been defined. Data from vegetation monitoring plots should display a surviving
tree density of at least 320 trees per acre at the end of the third year of monitoring, and a
surviving tree density of at least 260 five-year-old trees per acre at the end of the five-year
monitoring period.
Table 5. Vegetation Species Planted Across the Restoration Site
Crowns West Restoration Site: Project No. D06003-2

Scientific Name Common Name Percent Planted by Species

Bare Root Trees Species
Total
Number of
Stems
Betula ni a River Birch 15% 1,110
Celtis laevi ata Sugarberry 5% 370
Fraxinus Green Ash 7.50% 555
Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT

Table 5. Vegetation Species Planted Across the Restoration Site
Crowns West Restoration Site: Project No. D06003-2
Total
Scientific Name C,ommon Name Percent Planted by Species Number of
Stems
pennsylvanica
Ju lans ni a Black Walnut 5% 370
Nyssa sylvatica

var. bi ora
Swam Tupelo 10% 740
Platanus

occidentalis
Sycamore 20% 1,480
uercus l rata Overcu Oak 10% 740
Quercus

michauxii
Swam Chestnut Oak 10% 740
uercus hellos Willow Oak 7.50% 555
Taxodium

distichum
Bald Cypress 10% 740
Native Herbaceous Species
El mus vir inicus Vir inia wild rye 15% NA
Panicum vir atum Switch grass 15% NA
Carex vul inoidea Fox sedge 5% NA
Polygonum

enns lvanicum
Smart Weed 5% NA
Juncus e usus Soft rush 10% NA
Carex lu ulina Ho sedge 10% NA
A ostis albs Redto 10% NA
Bidens ondosa Tick seed 10% NA
Coreopsis

lanceolata
Lance leaf coreo sis 10% NA
Carex lurida Shallow sedge 10% NA
Wood Vegetation for Live Stakes
Salix sericia Silk Willow 40% 1,040
Cornus amomum Silk Dogwood 40% 1,040
Sambucus
20% 520
canadensis Elderberry
3.1.3 Vegetative Observations and Results '
The permanent ground cover seed mixture broadcast on the Site after construction was
present during Year I monitoring of the Site.
Crowns West Restoration Project, EEP Contract No. D06003-2 8
December 2007, Monitoring Year 1 DRAFT

Tables A.1. through A.6. in Appendix A present vegetation metadata, vegetation vigor,
' vegetation damage and stem count data of the monitoring stations at the end of the Year 1
monitoring period. Data from the Year 1 monitoring event of the eleven vegetation plots
showed a range of 560 to 960 stems per acre. The data showed that the plots had an average
of 738 stems per acre. Based on these results, all plots are on track to meet the success
criteria of 320 stems per acre at the end of monitoring Year 3.
1 Trees within each monitoring plot are flagged regularly to prevent planted trees from losing
their identifying marks due to flag degradation. It is important for trees within the
monitoring plots to remain marked to ensure they are all accounted for during the annual
stem counts and calculation of tree survivability. Permanent aluminum tags are used on
surviving stems to aid in relocation during future counts. Flags are also used to mark trees
because they do not interfere with the growth of the tree.
' No significant volunteer woody species were observed in any of the vegetation plots. The
plots will also be assessed during Year 2 monitoring for volunteer species.
3.1.4 Vegetative Problem Areas
' There are quite a few weedy species occurring on the Site, though none seem to be posing
any problems for the woody or herbaceous hydrophytic vegetation. The weedy species are
' mostly annuals and seem to pose very little threat to survivability on site.
During Year 1 monitoring, kudzu (Pueraria montana) was observed on the Site. The kudzu
is located south of Haw Branch Road and is present in the NCDOT right-of-way and also
occurs within the project easement. Treatment for the kudzu within the project easement is
scheduled for late spring to early summer of 2008.
Privet (Ligustrum L.) was also observed on the Site, during Year 1 monitoring. The privet is
' located along the southern easement boundary, west of Haw Branch Road or along the right
side of the restored channel, west of Haw Branch Road. This area is scheduled to be treated
before spring of 2008. The privet in this area will be treated by the cut and paint method.
3.1.5 Vegetation Photographs
Photographs are used to visually document vegetation plot success. A total of 11 reference
stations were established to document tree conditions at each vegetation plot across the Site.
Additional photo stations were also established at each of the 11 vegetation plots for
herbaceous vegetation monitoring. Reference photos of both tree conditions and herbaceous
' conditions are taken at least once per year. Photos of the tree plots showing the on-site
vegetation are included in Appendix A of this report. Photos of the herbaceous plots are also
included in Appendix A.
' 3.2 Stream Assessment
3.2.1 Morphometric Success Criteria
To document the stated success criteria, the following monitoring program was instituted
following construction completion on the Site:
Cross-sections: Two permanent cross-sections were installed per 1,000 LF of stream
' restoration work, with one of the locations being a riffle cross-section and one location being
a pool cross-section. A total of nine permanent cross-sections were established across the
Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT

Site. Each cross-section was marked on both banks with permanent pins to establish the
exact transect used. The permanent cross-section pins are surveyed and located relative to a
common benchmark to facilitate easy comparison of year-to-year data. The annual cross-
section surveys include points measured at all breaks in slope, including top of bank,
bankfull, inner berm, edge of water, and thalweg.
The approved Restoration Plan requires the following criteria be met to achieve stream
restoration success. There should be little change in as-built cross-sections. If changes do
take place, they will be evaluated to determine if they represent a movement toward a more
unstable condition (e.g., down-cutting or erosion) or a movement toward increased stability
(e.g., settling, vegetative changes, deposition along the banks, or decrease in width/depth
ratio). Cross-sections will be classified using the Rosgen Stream Classification System, and
all monitored cross-sections should fall within the quantitative parameters defined for
channels of the design stream type.
Longitudinal Profiles: A complete longitudinal profile was surveyed following construction
completion to record as-built conditions. The profile was conducted for the entire length of
the restored channels (M1 and M2). Measurements included thalweg, water surface,
bankfull, and top of low bank. Each of these measurements was taken at the head of each
feature (e.g., riffle, pool, and glide). In addition, maximum pool depth was recorded. All
surveys were tied to a single, permanent benchmark.
The approved Restoration Plan requires the following criteria be met to achieve stream
restoration success. The longitudinal profiles should show that the bedform features are
remaining stable; i.e., they are not aggrading or degrading. The pools should remain deep,
with flat water surface slopes, and the riffles should remain steeper and shallower than the
pools. Bedforms observed should be consistent with those observed for channels of the
design stream type.
3.2.2 Morphometric Results
Year 1 cross-section monitoring data for stream stability were collected during August 2007.
The nine permanent cross-sections along the restored channels (five located across riffles and
four located across pools) were re-surveyed to document stream dimension at the end of
monitoring Year 1. Data from each of these cross-sections are summarized in Appendix B.
The cross-sections show that there has been very little adjustment to stream dimension since
construction.
Cross-sections 2, 5, 6, and 9 are located across pools found at the apex of meander bends.
Based on the cross-section data, none of these sections show the development of point bar
features on the inside bank of the meander bend. Due to below average rainfall for 2007 the
pools on the project site did not experience enough sustained water and flow in the channel to
develop point bar features. Cross-section 2 did not experience significant change during
Year 1. However, cross-sections 5 and 6 exhibited shallower pools, while cross-section 9
showed a deeper pool than was measured in the as-built condition.
The longitudinal profile for Year 1 was surveyed in August 2007 and was compared to the
data collected during the as-built condition survey. The longitudinal profile is presented in
Appendix B. The results of longitudinal profile show that the pools in M 1 and M2 have
maintained elevations and pool depths similar to those documented during the as-built
Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT
10

survey. The longitudinal profile also showed that the riffles and in-stream structures are
stable.
In-stream structures installed within the restored stream included constructed riffles, log
vanes, log weirs, and root wads. Visual observations of these structures throughout the Year
1 growing season have indicated that all structures are functioning as designed and holding
their elevation grade. Log vanes placed in meander pool areas have provided scour to keep
pools deep and provide cover for fish. Log weirs placed in riffle areas have maintained riffle
' elevations and provided a downstream scour hole which provides habitat. Root wads placed
on the outside of meander bends have provided bank stability and in-stream cover for fish
and other aquatic organisms.
3.2.3 Hydrologic Criteria
One crest gauge was installed on the Site to document bankfull events. The gauge is checked
t regularly and records the highest out-of-bank flow between site visits. The gauge is located
on the downstream portion of reach M2, which is presented in Figure 2G.
The approved Restoration Plan requires the following criteria be met to achieve stream
restoration success. Two bankfull flow events must be documented within the five-year
monitoring period. The two bankfull events must occur in separate years, otherwise, the
stream monitoring will continue until two bankfull events have been documented in separate
' years.
3.2.4 Hydrologic Monitoring Results
' The on-site crest gauge documented the occurrence of at least one bankfull flow event during
Year 1 of the post-construction monitoring period, as shown in Table 6. Inspection of
conditions during a site visit revealed visual evidence of out-of-bank flow, confirming the
' crest gauge reading. The largest on-site stream flow documented by the crest gauge during
Year I of monitoring was approximately 0.40 feet (4.8 inches) above the bankfull stage and
was the result of overbank flooding of M2.

Table 6. Verification of Bankfull Events

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Crowns West Restoration Site: EEP iContract • 1111
Date of Data Date of Occurrence of Method of Data Photo # or
Collection Bankfull Event Collection Measurement
3.2.5 Stream Problem Areas
During Year I monitoring, the Site did not experience any restoration-related problems. The
Site received below normal rainfall during the 2007 growing season. Therefore, site visits
revealed periods of a dry, exposed streambed. As a result, no stream problem areas were
documented during Year 1 monitoring.
Crowns West Restoration Project, EEP Contract No. D06003-2
December 2007, Monitoring Year 1 DRAFT
II

3.2.6 Stream Photographs
Photographs are used to visually document restoration success. A total of 23 reference
stations were established to document conditions at the constructed grade control structures
across the Site, and additional photo stations were established at each of the 9 permanent
cross-sections. The GPS coordinates of each grade control structure photo station have been
noted as additional reference to ensure the same photo location is used throughout the
monitoring period. Reference photos are taken at least once per year.
Each stream bank is photographed at each permanent cross-section photo station. For each
stream bank photo, the photo view line follows a survey tape placed across the channel,
perpendicular to flow (representing the cross-section line). The photograph is framed so that
the survey tape is centered in the photo (appears as a vertical line at the center of the
photograph), keeping the channel water surface line horizontal and near the lower edge of the
frame.
Photographs will be used to document restoration success visually. Reference stations were
photographed before construction and will be photographed for at least five years following
construction. Reference photos will be taken once per year, from a height of approximately
five to six feet. Permanent markers are established to ensure that the same locations (and
view directions) on the Site are monitored during each monitoring event.
A photo log of the restored channel is presented in Appendix B of this report. Data for each
of the nine permanent cross-sections are also included in Appendix B.
Photographs of the restored channel were taken at the end of the monitoring season to
document the evolution of the stream geometry. Herbaceous vegetation is dense along the
edges of the restored stream, making the photography of some of the stream channel areas
difficult.
3.2.7 Stream Stability Assessment
Table B.1. presents a summary of the results obtained from the visual inspection of in-stream
structures performed during Year 1 of post-construction monitoring. The percentages noted
are a general, overall field evaluation of the how the features were performing at the time of
the photo point survey. According to the visual stability assessment, during Year 1
monitoring, all features on the Site are performing as designed.
3.2.8 Quantitative Measures Summary Tables
The quantitative pre-construction, reference reach, and design data used to determine
restoration approach, as well as the as-built baseline data used during the project's post
construction monitoring period are summarized in Appendix B.
The Year 1 cross-section data are compared to baseline stream geometry data collected in
April 2007 (as-built conditions) and Year 1 data collected in October 2007 in Appendix B.
Crowns West Restoration Project, EEP Contract No. D06003-2 12 I
December 2007, Monitoring Year 1 DRAFT

4.0 OVERALL CONCLUSIONS AND RECOMMENDATIONS
'
Stream Monitoring - The total length of stream channel restored on the Site was 3,835 LF. This
entire length was inspected during Year 1 of the monitoring period (2007) to assess stream
performance. Based on the data collected, all riffles, pools, and other constructed features along
the restored channel are stable and functioning as designed.
The on-site crest gauge documented the occurrence of one bankfull flow event during the Year 1
' of the post-construction monitoring period. Inspection of site conditions during a site visit
revealed visual evidence of out-of-bank flow.
Vegetation Monitoring - For the 11 monitoring plots, vegetation monitoring indicated a
survivability range of 560 stems per acre to 960 stems per acre with an overall average of 738
stems per acre. The data shows that the Site is on track for meeting the success interim criteria
of 320 trees per acre by the end of Year 3.
During Year 1 monitoring, kudzu (Pueraria montana) and privet (Ligustrum L) were observed
on the Site. The kudzu is located east of Haw Branch Road and is present within the NCDOT
' right-of-way and also occurs within the project easement. The privet is located along the
southern easement boundary west, of Haw Branch Road or along the right side of the restored
channel west, of Haw Branch Road. These areas are scheduled to be treated during Year 2 of
' monitoring.
5.0 WILDLIFE OBSERVATIONS
'
Observations of deer and raccoon tracks are common on the Site. During certain times of the
year, frogs and crawfish have been periodically observed.
6.0 REFERENCES

Rosgen, D. L. 1994. A Classification o.fNatural Rivers. Catena 22: 169-199.
Schafale, M. P., and A. S. Weakley. 1990. Classification of the Natural Communities of North
Carolina, Third Approximation. North Carolina Natural Heritage Program, Division of
Parks and Recreation. NCDENR. Raleigh, NC.
' USDA, NC Agricultural Experiment Station, Soil Survey of Onslow County, North Carolina,
1992.
I Crowns West Restoration Project, EEP Contract No. D06003-2 j
December 2007, Monitoring Year 1 DRAFT

1

1

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Prepared November 77, 2007 y.--OnslowCounty Miles
Figure 1. Location of Crowns West Stream Restoration Site.
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Crowns West Restoration Site: Project No. D06003-2
Species 4 3 2 1 0 Missing
Betula ni ra 4 9 5
Celtis laevi ata 4
Fraxinus enns Ivanica 3 13 1
Ju lans ni ra 8 5
N ssa biflora 5 22 3
Quercus I rata 7 12 1
Quercus michauxii 3 9
Quercus hellos 7 6
Taxodium distichum 11 11
Platanus occidentalis 8 29 13 1
Unknown 1 2 1 20
TOT: 11 42 126 35 1 20
Table A.3. Vegetation Damage by Species
Crowns West Restoration Site: Project No. D06003-2
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Quercus I rata 20 19 1
Quercus michauxii 12 12
Quercus hellos 13 13
Taxodium distichum 22 22
Unknown 24 4 17 3
TOT: 11 224, 202 18 4

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1

APPENDIX B
I GEOMORPHIC RAW DATA

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Table B.I. Categorical Stream Feature Visual Stability Assessment
Crowns Wet Restoration Site: Project No. D06003-2
Performance Percentag e
Feature Initial MY-01 MY-02 MY-03 MY-04 MY-05
A. Riffles 100% 100%
B. Pools 100% 100%
C. Thalweg 100% 100%
D. Meanders 100% 100%
E. Bed General 100% 100%
F. Bank Condition 100% 100%
G. Wads 100% 100%
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(Year 1 Data - Collected Aug. 2007)
N? k 3
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Feature Stream
Type
BKF Area
BKF Width BKF
Depth Max BKF
Depth
W/D
BH Ratio
ER
BKF Elev
TOB Elev
Riffle Cc 8.4 192 0 44 44 11 09 31 64 63.88
Crowns West Cross-section 1
69
68
67
66
c
65 -----------------------------------------------------------------------o
64-
63
62
--- - Year 1 a - Bankfull - - o - - Floodprone -+? As-Built
61 1. 1
0 10 20 30 40 50 60 70
Station (ft)
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Looking at the Left Bank
Permanent Cross-section 2
(Year 1 Data - Collected Aug. 2007)
r
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Feature Stream
Tye
BKF Area BKF
Width BKF
Depth Max BKF
Depth
W/D
BH Ratio
ER
BKF Elev
TOB Elev
Pool 23.3 12.88 1.81 3.07 7.11 1.1 5.4 62.45 62.86
Crowns West Cross-section 2
66
------------------•-------------------------------------------------------------------0
65
64
63
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60
59
Year 1 o Bankfull • o • - Floodprone t As-Built
58

0 10 20 30 40 50 60 70
Station (ft)

Permanent Cross-section 3
(Year 1 Data - Collected Aug. 2007)
04
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Feature Stream
Type
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BKF Width BKF
Depth Max BKF
Depth
W/D
BH Ratio
ER
BKF Elev
TOB Elev
Riffle Cc 7.7 11.39 0.68 1.21 16.83 1 5.7 61.23 61.25
Crowns West Cross-section 3
66
65
64
63
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- Year 1 o Bankfull - - o - - Floodprone ?- As-Built
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0 10 20 30 40 50 60
Station (ft)
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Looking at the Right Bank
Permanent Cross-section 4
(Year 1 Data - Collected Aug. 2007)
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Type
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Depth Max BKF
Depth
W/D
BH Ratio
ER
BKF Elev
TOB Elev
Riffle Cc 7.7 9.72 0.8 1.26 12.2 1 6 58.78 58.79
Crowns West Cross-section 4
63
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57
56
Year l - > - - Bankfull - - o - - Floodprone -?- As-Built
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0 10 20 30 40 50 60
Station (ft)
70
Permanent Cross-section 5
(Year 1 Data - Collected Aug. 2007)
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Feature Stream
Type
BKF Area
BKF Width BKF
Depth Max BKF
Depth
WD
BH Ratio
ER
BKF Elev
TOB Elev
Pool 17.7 12.92 1.37 2.4 9.42 1 4.8 56.28 56.32
Crowns West Cross-section 5
60 --
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52
0 10 20 30 40 50 60
Station (ft)
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Looking at the Left Bank
Permanent Cross-section 6
(Year 1 Data - Collected Aug. 2007)

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Feature Stream
Type
BKF Area
BKF Width BKF
Depth Max BKF
Depth
W/D
BH Ratio
ER
BKF Elev
TOB Elev
Pool 20.6 14.17 1.45 2.63 9.75 1 5.2 53.05 53.1
Looking at the Left Bank
Permanent Cross-section 7
(Year 1 Data - Collected Aug. 2007)
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Feature Stream
Type
BKF Area
BKF Width BKF
Depth Max BKF
Depth
W/D
BH Ratio
ER
BKF Elev
TOB Elev
Riffle E 10.2 10.01 1.02 1.62 9.86 1 7.6 52.7 52.73
Crowns West Cross-section 7
59 ,-',
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w -----•-------- ------------------•-•---------------------
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51
-- Year l - - ® Bankfull - - a - • Floodprone t As-Built
49
0 10 20 30 40 50 60 70 80 90 100 110
Station (ft)
Permanent Cross-section 8
(Year 1 Data - Collected Aug. 2007)
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Stream BKF Max BKF
Feature Type BKF Area BKF Width Depth Depth W/D BH Ratio ER BKF Elev TOB Elev
Riffle E 11.4 9.38 121 4 - 7 74 13 9 51 i8 ' 51-19
Permanent Cross-section 9
(Year 1 Data - Collected Aug. 2007)
Looking at the Left Bank

BKF Elev I TOB
Pool 1 1 25.11 1 14.08 1 1.78 4.17 1 7.9 1 1 8.2 1 49.83 49 66
Crowns West Cross-section 9
54
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