HomeMy WebLinkAbout20120182 Ver 1_Year 4 Monitoring Report_2018_20181205MONITORING YEAR 4
ANNUAL REPORT
Final
HOGAN CREEK STREAM MITIGATION PROJECT
Surry County, NC
DEQ Contract 6496
DMS Project Number 94708
DWR # 20120182
USACE Action ID SAW -2011-02268
Data Collection Period: April -October 2018
Submission Date: December 5, 2018
PREPARED FOR:
INC Department of Environmental Quality
Division of Mitigation Services
1652 Mail Service Center
Raleigh, NC 27699-1652
Mitigation Project Name Hogan Creek
DMS ID 94708
River Basin Yadkin
Cataloging Unit 03040101
County Surry USACE Action lD 20114=68
Data Project Instituted 10/18/2010 NCDWR Permit No 20124182
Dale Prepared 8/1612018
Credit Release Milestone
Potential Credits Mid atlen Pian
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Potential Credits ORT Approved)
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wetland Credits
Wpaden Riparian Her Namdpa0an
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Coastal
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Release Year
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Ste Eamlishment
NIANIA
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WA
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NIA
NIA
WA
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780.000
2015
9298015
30%
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1,620450
780.000
Year1 Monitorin
10%900
No
2016
4252018
10%
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00
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2017
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ar3 Monitodn -NOT RELEASED
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10%2019
10%
106
WA
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7(Year5Monitorin
1S/•2020
780.000
2]OA00
3,681.450
15%
1S%
WA
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tandard
1SA089
201710202017
WA
Total Credits Released to Date
.061
'NOTE: Adjustment required due to IRT concems on howthe as -built credBs were [21CUlated
DEBITS heleased credits only)
Ratios 1 1 250114 5 1 3 2 5 1 3 2 5 1 3 2 5
In Adjusted As4vilt Amounts (rest and acres)
2,493.000
1,200.000
416.000
5,673.000
_ cvWAS
To
2K 2U 2W y oK wV
IRT Adjus[ed ASBuitt Amounts (m¢igatien [redits)
2,493.000
1,200.000
166.324
1.134.600
Peroenhge Released
65%
65%
65%
66%
7
Released Amounts (fee (acres)
1,620.450
780.000
270.400
3,687.450
Released Area nb(credits)
1,620450
780.000
108.111
737.490
NCDWRPmmt USACEAotIon ID Project Name
Remaining Amoumsdeetlacres)
.620.450
780.000
2]OA00
3,681.450
Remaining Amouclahnsdes)
1,620.450
780.000
108.111
737,490
Signature ofW mington District Official Approving Credit Release Date 1
1- For NCDMS, no credits are rete eddurng the first milestone
2 - For NCDMS projects, the second credit release milestone occurs automatically when the as -bulli report (baseline monitoring report) has been made available to the NCIRT by posting it to the NCEEP (NCDMS) Portal, provided the following
criteria have been met:
1) Approval ofthe final Mitigation Plan
2) Recordation of the preservation mechanism, as well as a title opinion acceptable to the USACE covering the property
3) Completion of all physical and biological Improvements to the mitigation site pursuant to the mitigation plan
4) Reciept of necessary CA permit authorization or written DA approval for porjects where DA permit issuance is not required
3.-A 10% reserve of credits is to be held back until the bankfull event performance standard has been mel
PREPARED BY:
WILDLANDS
E N G I N E E R I N G
1430 South Mint Street, Suite 104
Charlotte, NC 28203
Phone: 704.332.7754
Fax: 704.332.3306
WILDLANDS
ENGINEERING
December 5, 2018
Mr. Matthew Reid
Western Project Manager
Division of Mitigation Services
5 Ravenscroft Dr., Suite 102
Asheville, NC 28801
RE: Hogan Creek Stream Mitigation Project
Yadkin River Basin — CU# 03040101
Surry County, North Carolina
NCEEP Project # 94708
Contract No. 6496
Dear Mr. Reid:
Wildlands Engineering, Inc. (Wildlands) has reviewed the Division of Mitigation Services (DMS) comments
from the Draft Monitoring Year 4 report for the Hogan Creek Stream Mitigation Project. The following
Wildlands responses to DMS's report comments are noted in italics lettering.
DMS comment; Please update last sentence in Executive Summary. The adaptive management
measures scheduled to repair Hogan Creek Reach 1 and Reach 2 will occur in January 2019.
Wildlands response; Text in the Executive Summary has been updated to indicate that site repairs are
scheduled to occur in January 2019.
DMS comment; 1.2.2 Vegetation Areas of Concern: DMS has contracted with a provider for invasive
species treatment beginning in Spring 2018. Treatments occurred in June 2018 and again in August
2018. Additional treatments will continue until closeout.
Wildlands response; Text in Section 1.2.2 has been added to indicate that invasive species treatment
occurred in June and August 2018 and that additional treatments will continue until closeout.
DMS comment; 1.2.4 Stream Areas of Concern: The repair construction to Hogan Creek Reach 1 and
Reach 2 will begin in January 2019.
Wildlands response; Text in Section 1.2.4 has been updated to indicate that site repairs are scheduled to
occur in January 2019.
DMS comment; 1.3 Monitoring Year 3 Summary: Please update section to indicate that adaptive
management measures will occur in January 2019 and invasive plant control will continue in 2019.
Wildlands response; Text in Section 1.3 has been updated to indicate that adaptive management
measures will occur in January 2019 and invasive plant control will continue in 2019.
Wildlands Engineering, Inc. • phone 704-332-7754 • fax 704-332-3306 • 1430 S. Mint Street, # 104 • Charlotte, NC 28203
WILDLANDS
ENGINEERING
DMS comment; Table 2: Please update Invasive Species Treatment dates to Jun/Aug — 2018
Wildlands response; In Table 2, Invasive Species Treatment dates have been updated to Jun/Aug -2018.
DMS comment; Please include the attached invasive species treatment log in the appendix.
Wildlands response; Invasive species treatment logs have been included in Appendix A.
DMS comment; XS and Profiles: For ease of reading and comparing data, please turn off markers for
all data except the current monitoring year.
Wildlands response, For XS and Profiles, all markers for data except the current monitoring year have
been turned off.
Enclosed please find three (3) hard copies and one (1) electronic copy on CD of the Final Monitoring
Report. Please contact me at 704-332-7754 x110 if you have any questions.
Sincerely,
Kirsten Y. Gimbert
Project Manager
kgimbert@w ildlandseng.com
Wildlands Engineering, Inc. • phone 704-332-7754 • fax 704-332-3306 • 1430 S. Mint Street, # 104 • Charlotte, NC 28203
EXECUTIVE SUMMARY
The North Carolina Department of Environmental Quality (NCDEQ) Division of Mitigation Services (DMS)
restored, enhanced, and preserved approximately 9,782 linear feet (LF) of stream channel at the Hogan
Creek Stream Mitigation Site (Site) in Surry County, North Carolina. The restoration project was
developed to fulfill stream mitigation requirements accepted by the DMS for the Upper Yadkin River
Basin 8 -digit Hydrologic Unit Code (HUC) 03040101. The Hogan Creek Stream Mitigation Project will net
4,994 stream mitigation credits through a combination of restoration, enhancement I and II, and
preservation.
The Site is within a Targeted Local Watershed (TLW) identified in the Upper Yadkin River Basin
Restoration Priority (RBRP) plan (NCDENR, 2009). The RBRP identified the Candiff Creek/Hogan Creek
14 -digit HUC as a TLW due to water quality and habitat impacts from past and present agricultural
practices. Agriculture is the primary land use in the watershed (41% agriculture land cover) and the
RBRP identified non -forested buffers and livestock operations as major stressors to water quality. There
are 26 permitted animal operations and 25% of the watershed has non -forested riparian buffers. The
site assessment phase of the project identified other stressors as well, including bank erosion, sediment
deposition, disconnection of the streams and floodplains, and exotic plant species. The project was
identified as an opportunity to improve water quality and aquatic and terrestrial habitats within the
TLW. In addition to being within an TLW, the upper Hogan Creek subwatershed has been identified as a
priority area for stream restoration and agricultural BMPs as part of DMS's initial Ararat River Local
Watershed Planning (LWP) effort (EcoEngineering, 2008).
The final design was completed in November of 2012. Construction activities and as -built surveys were
completed in December of 2014. Planting of the Site took place in March of 2015. The baseline
monitoring efforts began in May of 2015 and monitoring year 1 efforts began in October of 2015. The
region experienced an unusually high amount of precipitation during fall/winter 2015. The storm event
damaged several areas on Hogan Creek Reach 1 and Reach 2 that were repaired in December of 2015.
The Monitoring Year (MY) 4 activities were completed in October of 2018.
The Hogan Creek Stream Mitigation Project is on track to meet monitoring success criteria for
vegetation, geomorphology, and hydrology performance standards. The MY4 vegetation survey resulted
in an average stem density of 452 planted stems per acre. The Site is meeting the final requirement of
260 stems per acre, with all plots (100%) individually meeting this requirement. The MY4 vegetation
monitoring and visual assessment revealed significant reductions in invasive plant population along the
left riparian area of UT2 and UT213 in response to treatment that took place Summer of 2018. Areas of
invasive species persist along the riparian areas along Hogan Creek especially at the roadside of Miller
Gap Road. Areas of stream bank erosion with no stabilizing woody vegetation appear to be trending
toward less stable conditions in Hogan Creek Reach 1 and 2. The performance standard of two recorded
bankfull events in separate monitoring years has been met for Hogan Creek and UT2. The adaptive
management measures scheduled to repair Hogan Creek Reach 1 and Reach 2 will occur in January
2019.
Hogan Creek Stream Mitigation Project
Monitoring Year 4 Annual Report - FINAL
HOGAN CREEK STREAM MITIGATION PROJECT
Year 4 Monitoring Report
TABLE OF CONTENTS
Section 1: PROJECT OVERVIEW.....................................................................................................1-1
1.1 Project Goals and Objectives.....................................................................................................1-1
1.2 Monitoring Year 4 Data Assessment..........................................................................................1-2
1.2.1 Vegetation Assessment......................................................................................................1-2
1.2.2 Vegetation Areas of Concern and Management Activity..................................................1-2
1.2.3 Stream Assessment............................................................................................................1-3
1.2.4 Stream Areas of Concern and Management Activity.........................................................1-3
1.2.5 Hydrology Assessment.......................................................................................................1-4
1.3 Monitoring Year 4 Summary......................................................................................................1-4
Section 2: METHODOLOGY............................................................................................................2-1
Section 3: REFERENCES.................................................................................................................3-1
APPENDICES
Appendix A General Tables and Figures
Figure 1
Project Vicinity Map
Figure 2
Project Component/Asset Map
Table 1
Project Components and Mitigation Credits
Table 2
Project Activity and Reporting History
Table 3
Project Contact Table
Table 4
Project Information and Attributes
Table 5
Monitoring Component Summary
Invasive Treatment Logs
Appendix B Visual Assessment Data
Figure 3 Integrated Current Condition Plan View
Table 6a -d Visual Stream Morphology Stability Assessment Table
Table 7 Vegetation Condition Assessment Table
Stream Photographs
Vegetation Photographs
Appendix C Vegetation Plot Data
Table 8
Vegetation Plot Criteria Attainment
Table 9
CVS Vegetation Plot Metadata
Table 10
Planted and Total Stem Counts (Species by Plot with Annual Means)
Appendix D
Morphological Summary Data and Plots
Table 11a -c
Baseline Stream Data Summary
Table 12
Morphology and Hydraulic Summary (Dimensional Parameters — Cross -Section)
Table 13a -c
Monitoring Data - Stream Reach Data Summary
Cross -Section Plots with Annual Overlays
Longitudinal Profiles with Annual Overlays
Pebble Count Plots with Annual Overlays
Appendix E
Hydrology Summary Data and Plots
Table 14
Verification of Bankfull Events
Monthly Rainfall Data
Hogan Creek Stream Mitigation Project
Monitoring Year 4 Annual Report - FINAL ii
Section 1: PROJECT OVERVIEW
The Site was implemented under a design -bid -build contract with DMS in Surry County, NC. The Site is
located in the Yadkin River Basin; eight -digit Cataloging Unit (CU) 03040101 and the 14 -digit HUC
03040101110060 (Figure 1). Located in the Piedmont physiographic province (NCGS 2004), the project
watershed primarily includes agricultural land cover. The drainage area for the lower end of Hogan
Creek is 1,514 acres. Hogan Creek is a main tributary to the Yadkin River in the Upper Yadkin River Basin
(HUC 03040101). The site is located approximately 2 miles south of NC 268 on Miller Gap Road, which
bisects the project site at the triple box culvert over Hogan Creek. A vicinity map is included in Appendix
A as Figure 1.
The NCDEQ DMS restored, enhanced, and preserved approximately 9,782 LF of Hogan Creek and three
previously unnamed tributaries (UTs), provide livestock fencing and alternative water sources to keep
livestock out of the streams, remove invasive plant species across the project, establish native riparian
buffer, and preserve relatively un -impacted forested streams. The restoration project was developed to
fulfill stream mitigation requirements accepted by the DMS for the Upper Yadkin River Basin (HUC
03040101). Mitigation work within the Site included restoring and enhancing 4,109 LF and preserving
5,673 LF of stream. The Hogan Creek Mitigation Project will net 4,994 stream mitigation credits through
a combination of restoration, enhancement I and 11, and preservation. The final design was completed in
November of 2012. Construction activities and as -built surveys were completed in December of 2014.
Planting of the Site took place in March of 2015. The baseline monitoring efforts began in May of 2015
and monitoring year 1 efforts began in October of 2015. The region experienced an unusually high
amount of precipitation during fall/winter 2015. The storm event damaged several areas on Hogan
Creek Reach 1 and Reach 2 that were repaired in December of 2015. The monitoring year 4 activities
were completed in October of 2018. More detailed information related to the project activity, history,
and contacts can be found in Appendix A, Tables 1 and 2. Directions and a map of the Site are provided
in Figure 1 and project components are illustrated for the Site in Figure 2. Please refer to the Project
Component Map (Figure 2) for the stream features and to Table 1 for the project component and
mitigation credit information for the Site. This report documents the results of the MY4 efforts.
1.1 Project Goals and Objectives
Prior to construction activities, non -forested buffers and livestock operations were identified as major
stressors to water quality within the watershed. The site assessment phase of the project identified
other stressors as well, including bank erosion, sediment deposition, disconnection of the streams and
floodplains, and exotic plant species. The majority of the project area was utilized as a cattle operation
for over fifty years. Cattle accessed Hogan Creek and the downstream reach of UT2 exacerbating bank
erosion and allowing direct nutrient and fecal inputs to the streams. Deforested riparian buffers and
levee construction along Hogan Creek and UTs also contributed to channel degradation. Table 11 in
Appendix D present the pre -restoration conditions in detail.
This mitigation site is intended to provide numerous ecological benefits within the Yadkin River Basin.
The project goals identified in the Mitigation Plan (Confluence, 2012) include:
• Improve water quality in Hogan Creek and the UTs through reductions in sediment and nutrient
inputs from local sources;
• Create conditions for dynamic equilibrium of water and sediment movement between the
supply reaches and project reaches;
• Promote floodwater attenuation and secondary functions associated with more frequent and
extensive floodwater contact times;
Hogan Creek Stream Mitigation Project
400 Monitoring Year 4 Annual Report -FINAL 1-1
• Improve in -stream habitat by increasing the diversity of bedform features;
• Enhance and protect native riparian vegetation communities; and
• Reduce fecal, nutrient, and sediment loads to project streams by promoting and implementing
livestock best management practices.
The project objectives have been defined as follows:
• Restoration of the dimension, pattern, profile of 684 LF of Hogan Creek Reach 1, 962 LF of
Hogan Creek Reach 2, 555 LF of UT2, and 292 LF of UT3;
• Restoration of the dimension and profile (Enhancement 1) of 1,200 LF of Hogan Creek Reach 1.
• Limited channel work coupled with livestock exclusion and/or invasive species control
(Enhancement 11) on 66 LF of UT1 and 350 LF of UT2;
• Livestock exclusion fencing and alternative water source installations;
• Invasive plant species control measures across the entire project wherever necessary; and
• Preservation of approximately 5,673 LF relatively un -impacted forested streams in a permanent
conservation easement.
1.2 Monitoring Year 4 Data Assessment
Annual monitoring was conducted from April to October of 2018 to assess the condition of the project.
The stream restoration success criteria for the Site follows the approved performance standards
presented in the Hogan Creek Stream Mitigation Project Final Mitigation Plan (Confluence, 2012).
1.2.1 Vegetation Assessment
A total of 6 vegetation monitoring plots were established during the baseline monitoring within the
project easement areas using a standard 10 by 10 meter plot. Please refer to Figure 3 in Appendix B for
the vegetation monitoring locations. The final vegetation success criterion is the survival of 260 planted
stems per acre in the riparian corridor along restored and enhanced reached at the end of year five of
the monitoring period.
The MY4 vegetation survey was completed in August 2018. The data indicate an average stem density of
452 planted stems per acre which increased from MY3 because two stems were found that were missing
in previous monitoring years. The Site is meeting the final requirement of 260 stems per acre, with all
plots (100%) individually meeting this requirement. The planted stem mortality was approximately 1%
of the MY3 stem count which was 438 stems per acre. There is an average of about 11 planted stems
per plot. In vegetation plots 1, 2 and 4, a high density of volunteers, predominantly river birch (Betula
nigra), tulip poplar (Liriodendron tulipifera), and sycamore (Platanus occidentalis) were observed. A
majority of the planted stems (88.2%) scored a vigor of 3 or 4, indicating that they are likely to survive.
Approximately 5.9% of the planted stems scored a vigor of 2, indicating fair plant health but with some
damage present. Stems that scored a vigor of 1 are not likely to survive account for approximately 4.4%
of planted stems. This lower vigor rating is due to damage from vine strangulation, suffocation from
dense herbaceous cover, or other unknown factors. Please refer to Appendix B for vegetation plot
photographs and Appendix C for vegetation data tables.
1.2.2 Vegetation Areas of Concern and Management Activity
Observations indicate that invasive plant populations continue to present areas of concern in MY4 with
species including: kudzu (Pueraria montana), Chinese privet (Ligustrum sinense), Japanese honeysuckle
(Lonicera japonica), multiflora rose (Rosa multiflora), and Lespedeza (Sericea Lespedeza). Invasive
species treatment occurred in the summer of 2018 and significantly reduced areas of kudzu along the
left floodplain of UT2 and UT213 preservation reaches. Additionally, the kudzu that was present along the
right floodplain of lower Hogan Creek Reach 1 has been decreased. However other areas of invasive
Hogan Creek Stream Mitigation Project
Monitoring Year 4 Annual Report -FINAL 1-2
species continue to persist throughout the site. Areas of encroaching kudzu are spreading into the
easement along both sides of Miller Gap Road. Other invasive plant populations include smaller areas of
Chinese privet and multiflora rose at the upper portion of Hogan Creek Reach 1 and past the wood line
along the downstream portion of Hogan Creek Reach 2. Approximately 5% of the easement acreage
continues to be affected by invasive species. DMS has contracted with a provider for invasive species
treatment beginning in Spring 2018. Treatments occurred in June 2018 and again in August 2018.
Additional treatments will continue until closeout. These vegetation areas of concern are shown in
Figure 3 of Appendix B.
1.2.3 Stream Assessment
Morphological surveys for MY4 were conducted in June and July 2018. The MY4 riffle pebble counts in
Hogan Creek for cross-sections 1, 5, and 6 indicate similar or coarser sediment size distribution as
compared to MYO. For the riffle pebble count at cross-section 3, the sediment size distribution has
remained consistent with MY2-MY3 which shows a fining of riffle bed materials. This increase in fine
sediment size percentage is indicative of the downcutting present around this cross-section that has
caused movement of coarse sediment during large bankfull events. Refer to Appendix D for pebble
count plots with annual overlays.
Cross-section data indicate modest changes between MY3 and MY4. Hogan Creek riffle cross-section 3
displayed a trend between MYO and MY2 with a reduction in width -depth ratio and an increase in
bankfull maximum depth. Between MY3 and MY4, cross-section 3 dimensions exhibited only modest
changes indicating that the downcutting displayed in previous years has stabilized. Hogan Creek riffle
cross-section 5 data shows an increase in bank height ratio due to the right bank erosion that has
migrated downstream. Hogan Creek pool cross-sections indicate maintenance of pool maximum depths
and stable function. Hogan Creek pool cross-section 4 data displays a reduction in cross-sectional area
between MYO and MY4 due to the expansion of the point bar inside the meander bend. Cross-section
data from UT2 indicate some change in bankfull dimensions compared to the baseline. UT2 cross-
section data indicate moderate increase in width -depth ratio at the two riffles and a modest decrease in
cross-sectional area at the pool cross-section. Visual observations of UT2 indicate overall stability with
some sediment deposition observed downstream of the bridge. Similarly, UT1 and UT3 appear stable
and functioning as intended. Please refer to Appendix D for cross-section plots with annual overlays and
Table 12 for morphology and hydraulic summary.
The surveyed longitudinal profile data for the project streams illustrates that bedform features are
maintaining lateral and vertical stability for the majority of the surveyed reaches between MY3 and
MY4. Consistent with the trend displayed in previous monitoring years, max pool depths increased in all
reaches compared to baseline, particularly in Hogan Creek. Around station 17+00 on Hogan Creek Reach
1 downstream of the confluence with UT1, the pool has maintained depth due to scour from a log
structure and is enhancing aquatic habitat. On Hogan Creek Reach 2 at station 31+50 downstream of the
confluence with UT3, scour along the outer bend of the channel has maintained pool depth as well. The
profiles of Hogan Creek and UT2 show modest change in pool spacing and riffle slope. Please refer to
Appendix D for longitudinal profiles with annual overlays and Table 13a -c for stream reach data
summaries.
1.2.4 Stream Areas of Concern and Management Activity
Stream areas of concern included instances of bank erosion and sediment deposition on portions of
Hogan Creek and UT2. Nine areas of bank erosion were observed in Hogan Creek Reach 1 and five were
observed in Hogan Creek Reach 2. Twelve of these areas of bank erosion were noted in MY3 with two
new areas noted in MY4. In Hogan Creek Reach 1, approximately 7% of both banks are unstable due to
kHogan Creek Stream Mitigation Project
Monitoring Year 4 Annual Report -FINAL 1-3
erosion with no stabilizing woody vegetation. Downstream, similarly about 10% of both banks are
unstable due to erosion on Hogan Creek Reach 2. Areas with no woody vegetation nearby appear to be
trending toward less stable conditions. DMS has contracted with a provider to perform site evaluation,
design and construction oversight for a repair on Hogan Creek. The repair construction to Hogan Creek
Reach 1 and Reach 2 will begin in January 2019. These stream areas of concern are indicated on the
current condition plan view Figure 3 and Table 6 in Appendix B.
1.2.5 Hydrology Assessment
Bankfull events were documented for Hogan Creek and UT2 on April 19, 2018 based on the visual
observation of wrack lines and crest gage measurements. Monthly rainfall data indicate higher than the
70th percentile rainfall amounts occurred during the months of April through May and July through
August of 2018. Two bankfull flow events must be documented on restoration reaches within the five-
year monitoring period and must occur in separate years. Therefore, the performance standard has
been met in MY4 with at least four documented bankfull events for each reach. Refer to Appendix E for
hydrologic data and graphs.
1.3 Monitoring Year 4 Summary
The Hogan Creek Stream Mitigation Project is on track to meet monitoring success criteria for
vegetation, geomorphology, and hydrology performance standards. The MY4 vegetation survey resulted
in an average stem density of 452 planted stems per acre. The Site is meeting the final requirement of
260 stems per acre, with all plots (100%) individually meeting this requirement. The MY4 vegetation
monitoring and visual assessment revealed significant reductions in invasive plant population along the
left riparian area of UT2 and UT2B in response to treatment. Areas of invasive species persist along the
riparian areas along Hogan Creek especially at the roadside of Miller Gap Road. Areas of stream bank
erosion with no stabilizing woody vegetation appear to be trending toward less stable conditions in
Hogan Creek Reach 1 and 2. However, the adaptive management measures to repair Hogan Creek Reach
1 and 2 will occur in January 2019 and invasive plant control will continue in 2019. The performance
standard of two recorded bankfull events in separate monitoring years has been met for Hogan Creek
and UT2.
Summary information and data related to the performance of various project and monitoring elements
can be found in the tables and figures in the report appendices. Narrative background and supporting
information formerly found in these annual monitoring reports can be found in the Mitigation Plan
documents available on DMS's website. All raw data supporting the tables and figures in the appendices
are available from DMS upon request.
Hogan Creek Stream Mitigation Project
400 Monitoring Year 4 Annual Report -FINAL 1-4
Section 2: METHODOLOGY
The stream monitoring methodologies utilized in 2018 are based on standard guidance and procedures
documents (Rosgen 1996 and USACE 2003). Geomorphic data were collected following the standards
outlined in The Stream Channel Reference Site: An Illustrated Guide to Field Techniques (Harrelson et
al., 1994) and in the Stream Restoration: A Natural Channel Design Handbook (Doll et al., 2003). All
Integrated Current Condition Mapping was recorded using a Trimble handheld GPS with sub -meter
accuracy and processed using Pathfinder and ArcGIS. Planted woody vegetation is being monitored in
accordance with the guidelines and procedures developed by the Carolina Vegetation Survey-EEP Level
2 Protocol (Lee et al., 2008). Crest gages were installed in surveyed riffle cross-sections and monitored
quarter
Hogan Creek Stream Mitigation Project
Monitoring Year 4 Annual Report -FINAL 2-1
Section 3: REFERENCES
Confluence Engineering, PC. 2012. Hogan Creek Stream Mitigation Plan. NCEEP, Raleigh, NC.
Doll, B.A., Grabow, G.L., Hall, K.A., Halley, J., Harman, W.A., Jennings, G.D., and Wise, D.E. 2003. Stream
Restoration A Natural Channel Design Handbook.
EcoEngineering. 2008. Technical Memorandum Task 2, Upper Yadkin Basin Local Watershed Plan.
Harrelson, Cheryl C; Rawlins, C.L.; Potyondy, John P. 1994. Stream Channel Reference Sites: An Illustrated
Guide to Field Technique. Gen. Tech. Rep. RM -245. Fort Collins, CO: U.S. Department of Agriculture,
Forest Service, Rocky Mountain Forest and Range Experiment Station. 61 p.
Lee, Michael T., Peet, Robert K., Steven D., Wentworth, Thomas R. 2008. CVS-EEP Protocol for Recording
Vegetation Version 4.2. Retrieved from: http://cvs.bio.unc.edu/protocol/cvs-eep-protocol-v4.2-lev1-
2.pdf
North Carolina Climate Retrieval and Observations Network of the Southeast Database (NCCRONOS).
2017. State Climate Office of North Carolina. Version 2.7.2. NC -SR -2 -Dobson 2.3 SE. Station ID
Dobson 2.3 SE. Accessed November 2017.
NCDENR. 2009. Upper Yadkin River Basin Restoration Priorities. Retrieved from
https://deq.nc.gov/about/divisions/mitigation-services/dms-planning/watershed-planning-
documents/yadkin-river-basin
North Carolina Geological Survey (NCGS). 2004. Physiography of North Carolina. Map compiled by the
Division of Land Resources. Raleigh.
Rosgen, D.L. 1996. Applied River Morphology. Pagosa Springs, CO: Wildland Hydrology Books.
United States Army Corps of Engineers (USACE), 2003. Stream Mitigation Guidelines. USACE, NCDENR-
DWQ, USEPA, NCWRC.
Hogan Creek Stream Mitigation Project
Monitoring Year 4 Annual Report -FINAL 3-1
APPENDIX A. General Tables and Figures
The subject project site is an environmental restoration site of
the North Carolina Department of Environmental Quality (DEQ)
Division of Mitigation Services (DMS) and is encompassed
by a recorded conservation easement, but is bordered
by land under private ownership. Accessing the site
may require traversing areas near or along the easement
boundary and therefore access by the general public is not
permitted. Access by authorized personnel of state and
federal agencies or their designees/contractors involved in
the development, oversight,and stewardship of the restoration
site is permitted within the terms and timeframes of their
defined roles. Any intended site visitation or activity by
any person outside of these previously sanctioned roles
and activites requires prior coordination with DMS.
Gay,o ?y C' eek
Directions: The Hogan Creek project site is
located southeast of Level Cross in Surry County,
North Carolina. The site is accessed from 1-77
north out of Statesville. Turn east off 1-77 at exit
85 (NC 268 Bypass) and travel approximately 3
miles to the intersection with NC 268. Turn east
and travel approximately 12 miles to a south turn
onto Miller Gap Road (SR2088). The site is
located approximately 2 miles south of NC 268 on
Miller Gap Road, which bisects the project site at
the bridge over Hogan Creek. The project site is
bordered to the north by Trajan Trail, to the south
by Anderson Road, and to the west by Siloam
Road. Latitude and longitude for the site are u
36.321609 N and 80.602389 W, respectively.
L Figure 1 Project Vicinity Map
Hogan Creek Stream Mitigation Project
W I L D L A N D 5 , 0 0.5 1 Mile DMS Project No. 94708
Monitoring Year 4-2018
Surry County, NC
� 3
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0 Project Location
Z _ :Hydrologic unit Code (14)
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03040101110040
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03040101090050
03040101110060 1*
The subject project site is an environmental restoration site of
the North Carolina Department of Environmental Quality (DEQ)
Division of Mitigation Services (DMS) and is encompassed
by a recorded conservation easement, but is bordered
by land under private ownership. Accessing the site
may require traversing areas near or along the easement
boundary and therefore access by the general public is not
permitted. Access by authorized personnel of state and
federal agencies or their designees/contractors involved in
the development, oversight,and stewardship of the restoration
site is permitted within the terms and timeframes of their
defined roles. Any intended site visitation or activity by
any person outside of these previously sanctioned roles
and activites requires prior coordination with DMS.
Gay,o ?y C' eek
Directions: The Hogan Creek project site is
located southeast of Level Cross in Surry County,
North Carolina. The site is accessed from 1-77
north out of Statesville. Turn east off 1-77 at exit
85 (NC 268 Bypass) and travel approximately 3
miles to the intersection with NC 268. Turn east
and travel approximately 12 miles to a south turn
onto Miller Gap Road (SR2088). The site is
located approximately 2 miles south of NC 268 on
Miller Gap Road, which bisects the project site at
the bridge over Hogan Creek. The project site is
bordered to the north by Trajan Trail, to the south
by Anderson Road, and to the west by Siloam
Road. Latitude and longitude for the site are u
36.321609 N and 80.602389 W, respectively.
L Figure 1 Project Vicinity Map
Hogan Creek Stream Mitigation Project
W I L D L A N D 5 , 0 0.5 1 Mile DMS Project No. 94708
Monitoring Year 4-2018
Surry County, NC
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Figure 2 Project Component/Asset Map
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Hogan Creek Stream Mitigation Project
V, [. D LA TN D S I I I 400 Feet DMS Project No. 94708
r. f:iVCk.rN[:
Monitoring Year 4 - 2018
Surry County, NC
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Figure 2 Project Component/Asset Map
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Hogan Creek Stream Mitigation Project
V, [. D LA TN D S I I I 400 Feet DMS Project No. 94708
r. f:iVCk.rN[:
Monitoring Year 4 - 2018
Surry County, NC
Table 1. Project Components and Mitigation Credits
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Mitigation Credit Summaries
N/A - Not Applicable
1 Project components and mitigation credits reverted back to Mitigation Plan asset totals as requested by IRT.
Stream
Riparian Wetland
Non-RiparianWetland
Buffer
Nitrogen Nutrient Offset
Phosphorous Nutrient Offset
Overall Credit
4,994.000
N/A
N/A
N/A
N/A
N/A
JAL
..
Project Component
or Reach ID
Stationing
Pre -project
Footage or
Acreage
Restoration
Footage or
Acreage
Restoration Level
Restoration or
Rest Equiv.
Mitigation
Ratio
Mitigation
Credits
Notes
Hogan Reach 1
10+00-22+00
1,331
1,200
P2
EI
1:1
1,200.000
Hogan Reach 1
22+00 - 28+84
797
684
P2
R
1:1
684.000
Crossing was removed from total
Hogan Reach 2
29+35 - 38+97
876
962
P2
R
1:1
962.000
UTIJA, 1B
Upstream of 10+00
1,485
1,485
Preservation
P
5:1
297.000
UT1
10+00 - 10+66
66
66
P3
Ell
2.5:1
26.400
UT2, 2A, 2B,2C
Upstream of 6+50
3,225
3,225
Preservation
P
5:1
645.000
UT2
6+50-10+00
370
350
P3
Ell
2.5:1
140.000
UT2
10+00 - 15+55
633
555
P2
R
1:1
555.000
Crossing was removed from total
UT3
Upstream of 9+40
963
963
Preservation
P
5:1
192.600
UT3
9+40-12+32
260
292
Length
P2
and Area Summations
R
1:1
292.000
Restoration Level
Stream ( Linear Feet)
Riparian Wetland (acres)
Non -riparian
Wetland (acres)
Buffer (Square feet)
Upland (acres)
Riverine
Non-Riverine
Restoration
2,493
Enhancement
Enhancement 1
1,200
Enhancement II
416
Creation
Preservation
5,673
High Quality
-
Preservation
N/A - Not Applicable
1 Project components and mitigation credits reverted back to Mitigation Plan asset totals as requested by IRT.
Table 2. Project Activity and Reporting History
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
N/A - Not Applicable
Table 3. Project Contacts Table
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Designer
Confluence Engineering, PC
lata Collection Complete
Completion or Delivery
Mitigation Plan
Asheville, NC 28801
October -2011
February -2012
Final Design — Construction Plans
Carolina Environmental Contracting, Inc.
October -2011
November -2012
Construction
Mount Airy, NC 27030
N/A
December -2014
Temporary S&E Mix Applied
Turner Land Surveying, PLLC
N/A
December -2014
Permanent Seed Mix Applied
Raleigh, NC 27629
N/A
December -2014
Containerized, bare root and B&B plantings for reach/segments
N/A
March -2015
Baseline Monitoring Document (Year 0)
Vegetation Survey
May -2015
August -2015
Jay Keller 919-749-8259
Stream Survey
June -2015
Stream Repair/Maintenance
N/A
December -2015
Year 1 Monitoring
Vegetation Survey
October -2015
January -2016
Foggy Mountain Nursery 336-384-5323
Stream Survey
December -2015
Invasive Species Treatment
May -2016
May -2016
Supplemental Planting
Stream Monitoring POC
N/A
January -2016
Invasive Species Treatment
September -2016
September -2016
Year 2 Monitoring
Vegetation Survey
October -2016
November -2016
Stream Survey
June -2016
Year 3 Monitoring
Vegetation Survey
August -2017
December -2017
Stream Survey
July -2017
Invasive Species Treatment
N/A
June/August -2018
Year 4 Monitoring
Vegetation Survey
August -2018
November -2018
Stream Survey
June -2018
Year 5 Monitoring
Vegetation Survey
2019
November -2019
Stream Survey
2019
N/A - Not Applicable
Table 3. Project Contacts Table
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Designer
Confluence Engineering, PC
16 Broad Street
Asheville, NC 28801
Primary Project Design POC
Andrew Bick 828-606-0306
Construction Contractor
Carolina Environmental Contracting, Inc.
150 Pine Ridge Road
Mount Airy, NC 27030
Construction Contractor POC
Wayne Taylor 336-341-6489
Survey Contractor
Turner Land Surveying, PLLC
PO Box 41023
Raleigh, NC 27629
Survey Contractor POC
David Turner 919-623-5095
Planting Contractor
Keller Environmental, LLC
7921 Haymarket Lane
Raleigh, NC 27615
Planting Contractor POC
Jay Keller 919-749-8259
Seeding Contractor
Carolina Environmental Contracting, Inc.
150 Pine Ridge Road
Mount Airy, NC 27030
Seeding Contractor POC
Wayne Taylor 336-341-6489
Seed Mix Sources
Green Resources 336-855-6363
Nursery Stock Suppliers
Foggy Mountain Nursery 336-384-5323
Monitoring Performers
Wildlands Engineering, Inc.
1430 South Mint Street, Ste 104
Charlotte, NC 28205
704.332.7754
Stream Monitoring POC
Kirsten Gimbert 704-332-7754, ext 110
Vegetation Monitoring POC
Kirsten Gimbert 704-332-7754, ext 110
Table 4. Project Baseline Information and Attributes
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
N/A Not -applicable
Project Information
Project Name
Hogan Creek Stream Mitigation Project
County
Surry
Project Area (acres)
36
Project Coordinates (latitude and longitude)
Physiographic Province
Project Watershed Summary
36.321609 N, 80.602389 W
Information
Piedmont
River Basin
Yadkin
USGS Hydrologic Unit 8 -digit
03040101
USGS Hydrologic Unit 14 -digit
03040101110060
DWR Sub -basin
Pee Dee River Subbasin 03-07-02
Project Drainage Area (acres)
1,514 ac (2.37 miz)
Project Drainage Area Percentage of Impervious Area
10.40%
CGIA Land Use Classification
Managed Herbaceous Cover, Broadleaf Deciduous Forest Land
11
Parameters
Hogan Creek Reach 1 Hogan Creek Reach 2 Main Stem UTI Main Stem UT2 UT3
Length of Reach Post Construction (LF)
1,961
992 1,442
2,869
1,227
Valley classification (Rosgen)
VIII
VIII VI
VI
VI
Drainage area (acres)
1,479
1,514 60
81
18
NCDWQ stream identification score
40
37 31
31.5
32.5
NCDWQWater Quality Classification
C
C C
C
C
Morphological Description (Rosgen stream type)
C4
C4 E4b
E4b
G4
Evolutionary trend
C -F
C -F Eb-G
Eb-G
Eb-G
Underlying mapped soils
CsA
CsA CsA, FsE
FsE
FsE
Drainage class
well drained well drained well drained
well drained
well drained
Soil Hydric status
not hydric
not hydric not hydric
not hydric
not hydric
Slope
0.007
0.005 0.031
1 0.021
0.030
FEMA classification
AE
AE Not in SFHA
Not in SFHA
Not in SFHA
Native vegetation community
Felsic Mesic Forest Felsic Mesic Forest Felsic Mesic Forest Felsic Mesic Forest Felsic Mesic Forest
Percent composition of exotic invasive vegetation
0
Wetland Summary
0 0
Information
0
0
Parameters
Wetland 1
Wetland 2
Wetland 3
dd
Wetland 4
Size of Wetland (acres)
0.09
0.02
0.13
0.10
Wetland Type
riparian non-riverme
riparian non-riverine
riparian non-riverine
riparian non-riverine
Mapped Soil Series
CsA
CsA and FsE
CsA and FsE
CsA and FsE
Drainage class
well drained
well drained
well drained
well drained
Soil Hydric Status
not hydric
not hydric
not hydric
not hydric
Source of Hydrology
Creek (oxbow)
Toe seep
Toe seep
Impoundment
Hydrologic Impairment
none
none
none
none
Native vegetation community
Dist. Small Stream/
Narrow FP Forest
Dist. Small Stream/
Narrow FP Forest
Dist. Small Stream/
Narrow FP Forest
Herbaceous
Percent composition of exotic invasive vegetation
Regulation
0
Regulatory Considerations
0
Applicable?
0 0
Documentation
Waters of the United States— Section 404
y
7Resolved?Supporting
CE Action ID # SAW -2011-02268
Waters of the United States— Section 401
Y
NCDWR # 20120182
Endangered Species Act
y
CE Approved 9/30/11
Historic Preservation Act
N
N/A
-
Coastal Zone Management Act (CZMA)/ Coastal Area Management Act (CAMA)
N
N/A
-
FEMA Floodplain Compliance
Y
y
LOMR Submitted 5/2015
Essential Fisheries Habitat
N
N/A
-
N/A Not -applicable
Table S. Monitoring Component Summary
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Parameter
Monitoring Feature
Hogan Creek Reach 1
Quantity Length By Reach (ft)
Hogan Creek Reach 2 UTI
UT2
Frequency
UT3
Dimension
Riffle XS
Pool XS
2
1
2
1
2
1
Annual
Annual
Pattern/Profile
Longitudinal Profile
1500
1000
675
Annual
Substrate
100 Pebble Count
2
2
Annual
Hydrology
Crest Gage
1
1
Semi -Annual
Vegetation
Vegetation Plots
3
2
1
Annual
Visual Assessment
Project Site
Y
Y Y
Y
Y Semi -Annual
Reference Photos
Permanent Photo Points
18
6 3
10
4 Annual
Invasive Treatment Logs
in
N
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APPENDIX B. Visual Assessment Data
Conservation Easement
Stream Restoration
! '; • \ '.,, Stream Enhancement Level I
Stream Enhancement Level II
.- Stream Preservation
Non Project Streams
. Existing Wetland
"+!► f Photo Point
Y
4
Crest Gage
•,', _
Cross -Section
Vegetation Monitoring Plots (VP) - MY4
Criteria Met
_ y
' -�. Stream Areas of Concern - MY4
+'JI A Scour/Erosion
gg
Bed A radation
�' - 1 � ''•
_. Vegetation Areas of Concern - MY4
Invasive Plant Population
Bare/Poor Herbaceous Cover
a t
"'0
•�f�sia+f
F,+SY+
Al
lip
•.? `a.d. •�' �`'' }'ice r
0
w
W I L n L A N D S ' 0 250 500 Feet
ENC IN EERINC
I I I I I
Figure 3.0 Integrated Current Condition Plan View Map (Key)
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Surry County, NC
_� 11
l
r
Pt
t�
�t
tP
Pt
•. r Pt�t 70.
PPt 00,
� �♦ I,L�n
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111111
Easement
,,,-Conservation
— Stream Restoration
Stream Enhancement Level I
Stream Enhancement Level II
-
�►
Non Project Streams
- - - Top of Bank
Pt
PP
t
�!
Existing Wetland
Photo Point
Wetland
o
Cross -Section
Ao
Vegetation Monitoring Plots (VP) - MY4
•_ - :,
i
. �� [{Y':i�.•• �`". —fin ,y;
t►
t
PP
♦
i
® Scour/Erosion
_••
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�'...... � ♦ ..
w. --3�.
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-
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111111
Easement
,,,-Conservation
— Stream Restoration
Stream Enhancement Level I
Stream Enhancement Level II
Stream Preservation
Non Project Streams
- - - Top of Bank
Structures
Existing Wetland
Photo Point
Crest Gage
Cross -Section
_.
Vegetation Monitoring Plots (VP) - MY4
0 Criteria Met
Stream Areas of Concern -MY4
® Scour/Erosion
_
.:
., J-
...' _ .�.` _£1':P_ _�'�.�_._. '.'.� .. �_ ..�._ tee_. _ _'".�_ ♦_\.,.� -� <__ � _�� �� •��`� �-• .L __' �...- `.. ...,_
Vegetation Areas of Concern - MY4
\' Invasive Plant Population
Figure 3.1 Integrated Current Condition Plan View Map (Sheet 1 of 3)
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
W I L n L A N D S' 0 125 250 Feet Monitoring Year 4- 2018
ENC IN EERINC
I I I I t Surry County, NC
111111
Easement
,,,-Conservation
— Stream Restoration
Stream Enhancement Level I
Stream Enhancement Level II
Stream Preservation
Non Project Streams
- - - Top of Bank
Structures
Existing Wetland
Photo Point
Crest Gage
Cross -Section
_.
Vegetation Monitoring Plots (VP) - MY4
0 Criteria Met
Stream Areas of Concern -MY4
® Scour/Erosion
Bed Aggradation
Vegetation Areas of Concern - MY4
\' Invasive Plant Population
Figure 3.1 Integrated Current Condition Plan View Map (Sheet 1 of 3)
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
W I L n L A N D S' 0 125 250 Feet Monitoring Year 4- 2018
ENC IN EERINC
I I I I t Surry County, NC
Figure 3.2 Integrated Current Condition Plan View Map (Sheet 2 of 3)
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
w I L n L A N D S' 0 150 300 Feet Monitoring Year 4- 2018
ENC IN EERINC
I i i I t Surry County, NC
Figure 3.3 Integrated Current Condition Plan View Map (Sheet 3 of 3)
PAW Hogan Creek Stream Mitigation Project
DMS Project No. 94708
w I L n L A N D S' 0 125 250 Feet Monitoring Year 4- 2018
ENC IN EERINC
I i i I t Surry County, NC
Table 6a. Visual Stream Morphology Stability Assessment Table
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Hogan Creek Reach 1 (Assessed Length : 1,961 feet)
Major Channel
Category
Channel Sub -Category
Metric
Number Stable,
Performing as
Intended
Total Number in
As -built
Number of
Unstable
Segments
Amount of
Unstable
Footage
%Stable,
Performing as
Intended
Numberwith
Stabilizing
Woody
Vegetation
Footage with
Stabilizing
Woody
Vegetation
Adjusted %for
Stabilizing
Woody
Vegetation
1. Vertical Stability (Riffle and
1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include
point bars)
8
190
90%
Run units)
2. Degradation - Evidence of downcutting
0
0
100%
2. Riffle Condition
1. Texture/Substrate - Riffle maintains coarser substrate
14
14
100%
1. Bed
1. Death Sufficient (Max Pool Depth : Mean Bankfull Depth > 1.6)
13
13
100%
3. Meander Pool Condition
2. Length appropriate (>30% of centerline distance between tail of upstream riffle and head of
downstrem riffle)
13
13
100%
1. Thalweg centering at upstream of meander bend (Run)
13
13
100%
4.Thalweg Position
2. Thalweg centering at downstream of meander (Glide)
13
13
100%
1. Scoured/Eroding
Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion
9
365
91%
4
95
93%
2. Bank
2. Undercut
Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include
undercuts that are modest, appear sustainable and are providing habitat.
0
0
100%
0
0
N/A
3. Mass Wasting
Bank slumping, calving, or collapse
0
0
100%
0
0
N/A
mmm Totals
9
365
91%
4
95
93%
1. Overall Integrity
Structures physically intact with no dislodged boulders or logs.
15
15
100%
2. Grade Control
Grade control structures exhibiting maintenance of grade across the sill.
5
5
100%
3. Engineered
Structures
2a. Piping
Structures lacking any substantial flow underneath sills or arms.
12
12
100%
3. Bank Protection
Bank erosion within the structures extent of influence does not exceed 15%. (See guidance for this
table in EEP monitoring guidance document)
13
15
87%
4. Habitat
Pool forming structures maintaining" Max Pool Depth : Mean Bankfull Depth ratio> 1.6
Rootwads/logs providing some cover at base -flow.
13
15
87%
Table 6b. Visual Stream Morphology Stability Assessment Table
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Hogan Creek Reach 2 (Assessed Length : 992 feet)
Major Channel
Category
Channel Sub -Category
Metric
Number Stable,
Performing as
Intended
Total Number in
As -built
Number of
Unstable
Segments
Amount of
Unstable
Footage
%Stable,
Performing as
Intended
Numberwith
Stabilizing
Woody
Vegetation
Footage with
Stabilizing
Woody
Vegetation
Adjusted %for
Stabilizing
Woody
Vegetation
1. Vertical Stability (Riffle and
1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include
point bars)
2
30
97%
Run units)
2. Degradation - Evidence of downcutting
0
0
100%
2. Riffle Condition
1. Texture/Substrate - Riffle maintains coarser substrate
4
6
67%
1. Bed
1. Death Sufficient (Max Pool Depth : Mean Bankfull Depth > 1.6)
4
5
80%
3. Meander Pool Condition
2. Length appropriate (>30% of centerline distance between tail of upstream riffle and head of
downstrem riffle)
4
5
80%
1. Thalweg centering at upstream of meander bend (Run)
4
5
80%
4.Thalweg Position
2. Thalweg centering at downstream of meander (Glide)
4
5
80%
1. Scoured/Eroding
Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion
5
200
90%
0
0
N/A
2. Bank
2. Undercut
Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include
undercuts that are modest, appear sustainable and are providing habitat.
0
0
100%
0
0
N/A
3. Mass Wasting
Bank slumping, calving, or collapse
0
0
100%
0
0
N/A
Totals
S
200
90%
0
0
N/A
1. Overall Integrity
Structures physically intact with no dislodged boulders or logs.
5
6
83%
2. Grade Control
Grade control structures exhibiting maintenance of grade across the sill.
1
1
100%
3. Engineered
Structures
2a. Piping
Structures lacking any substantial flow underneath sills or arms.
4
5
80%
3. Bank Protection
Bank erosion within the structures extent of influence does not exceed 15%. (See guidance for this
table in EEP monitoring guidance document)
S
6
83%
4. Habitat
Pool forming structures maintaining" Max Pool Depth : Mean Bankfull Depth ratio> 1.6
Rootwads/logs providing some cover at base -flow.
5
6
83%
Table 6c. Visual Stream Morphology Stability Assessment Table
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
UT2 (Assessed Length : 930 feet)
Major Channel
Category
Channel Sub -Category
Metric
Number Stable,
Performing as
Intended
Total Number in
As -built
Number of
Unstable
Segments
Amount of
Unstable
Footage
%Stable,
Performing as
Intended
Numberwith
Stabilizing
Woody
Vegetation
Footage with
Stabilizing
Woody
Vegetation
Adjusted %for
Stabilizing
Woody
Vegetation
1. Vertical Stability (Riffle and
1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include
point bars)
1
40
96%
Run units)
2. Degradation - Evidence of downcutting
0
0
100%
2. Riffle Condition
1. Texture/Substrate - Riffle maintains coarser substrate
12
14
86%
1. Bed
1. Death Sufficient (Max Pool Depth : Mean Bankfull Depth > 1.6)
13
13
100%
3. Meander Pool Condition
2. Length appropriate (>30% of centerline distance between tail of upstream riffle and head of
downstrem riffle)
13
13
100%
1. Thalweg centering at upstream of meander bend (Run)
13
13
100%
4.Thalweg Position
2. Thalweg centering at downstream of meander (Glide)
13
13
100%
1. Scoured/Eroding
Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion
0
0
100%
0
0
100%
2. Bank
2. Undercut
Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include
undercuts that are modest, appear sustainable and are providing habitat.
0
0
100%
0
0
100%
3. Mass Wasting
Bank slumping, calving, or collapse
0
0
100%
0
0
100%
Totals
0
0
100%
0
0
100%
1. Overall Integrity
Structures physically intact with no dislodged boulders or logs.
6
6
100%
2. Grade Control
Grade control structures exhibiting maintenance of grade across the sill.
2
2
100%
3. Engineered
Structures
2a. Piping
Structures lacking any substantial flow underneath sills or arms.
4
4
100%
3. Bank Protection
Bank erosion within the structures extent of influence does not exceed 15%. (See guidance for this
table in EEP monitoring guidance document)
6
6
100%
4. Habitat
Pool forming structures maintaining" Max Pool Depth : Mean Bankfull Depth ratio> 1.6
Rootwads/logs providing some cover at base -flow.
6
6
100%
Table 6d. Visual Stream Morphology Stability Assessment Table
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
UT3 (Assessed Length : 275 feet)
Major Channel
Category
Channel Sub -Category
Metric
Number Stable,
Performing as
Intended
Total Number in
As -built
Number of
Unstable
Segments
Amount of
Unstable
Footage
%Stable,
Performing as
Intended
Numberwith
Stabilizing
Woody
Vegetation
Footage with
Stabilizing
Woody
Vegetation
Adjusted %for
Stabilizing
Woody
Vegetation
1. Vertical Stability (Riffle and
1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include
point bars)
0
0
100%
Run units)
2. Degradation - Evidence of downcutting
0
0
100%
2. Riffle Condition
1. Texture/Substrate - Riffle maintains coarser substrate
4
4
100%
1. Bed
1. Death Sufficient (Max Pool Depth : Mean Bankfull Depth > 1.6)
4
4
100%
3. Meander Pool Condition
2. Length appropriate (>30% of centerline distance between tail of upstream riffle and head of
downstrem riffle)
4
4
100%
1. Thalweg centering at upstream of meander bend (Run)
4
4
100%
4.Thalweg Position
2. Thalweg centering at downstream of meander (Glide)
4
4
100%
1. Scoured/Eroding
Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion
0
0
100%
0
0
100%
2. Bank
2. Undercut
Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include
undercuts that are modest, appear sustainable and are providing habitat.
0
0
100%
0
0
100%
3. Mass Wasting
Bank slumping, calving, or collapse
0
0
100%
0
0
100%
Totals
0
0
100%
0
0
100%
1. Overall Integrity
Structures physically intact with no dislodged boulders or logs.
1
1
100%
2. Grade Control
Grade control structures exhibiting maintenance of grade across the sill.
1
1
100%
3. Engineered
Structures
2a. Piping
Structures lacking any substantial flow underneath sills or arms.
1
1
100%
3. Bank Protection
Bank erosion within the structures extent of influence does not exceed 15%. (See guidance for this
table in EEP monitoring guidance document)
1
1
100%
4. Habitat
Pool forming structures maintaining" Max Pool Depth : Mean Bankfull Depth ratio> 1.6
Rootwads/logs providing some cover at base -flow.
1
1
100%
Table 7. Visual Stream Morphology Stability Assessment Table
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Planted Acreage 6.7
Easement Acreage 36
Vegetation Category
Definitions
Mapping
CCPV Depiction
Number of
Combined
% of Planted
Vegetation Category
Definitions
1000 SF
CCPV Depiction
24
1.84
5.1%
Threshold
Polygons
Acreage
Acreage
S. Easement Encroachment Areas
Areas or points (if too small to render as polygons at map scale).
none
Cross Hatch
0
0.00
0.0%
1. Bare Areas
Very limited cover of both woody and herbaceous material.
0.1 acres
2
0.01
0.1%
Yellow
2. Low Stem Density Areas
Woody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria.
0.1 acres
N/A
0
0.00
0.0%
Total
2
0.01
0.1%
3. Areas of Poor Growth Rates or Vigor
Areas with woody stems of a size class that are obviously small given the monitoring year.
0.25 acres
N/A
0
0.00
0.0%
Cumulative Total
0
0.01
0.1%
Easement Acreage 36
Vegetation Category
Definitions
Mapping
Threshold
CCPV Depiction
Number of
Polygons
Combined
Acreage
% of Easement
Acreage
4. Invasive Areas of Concern
Areas or points (if too small to render as polygons at map scale).
1000 SF
Cross Hatch
Green
24
1.84
5.1%
S. Easement Encroachment Areas
Areas or points (if too small to render as polygons at map scale).
none
N/A
0
0.00
0.0%
Stream Photographs
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PP11— Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP12 — Reach 1 Hogan Creek, looking downstream (6/06/2018)
PP13 — Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP14 — Reach 1 Hogan Creek, looking downstream (6/06/2018)
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PP21— Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP22 — Reach 1 Hogan Creek, looking downstream (6/06/2018)
PP23 — Reach 1 Hogan Creek, looking downstream (6/06/2018) 1 PP24 — Reach 1 Hogan Creek, looking downstream (6/06/2018)
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PP30 — Reach 2 Hogan Creek, looking downstream (6/06/2018) 1 PP31— Reach 2 Hogan Creek, looking downstream (6/06/2018)
PP32 — Reach 2 Hogan Creek, looking downstream (6/06/2018)
Vegetation Photographs
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APPENDIX C. Vegetation Plot Data
Table 8. Vegetation Plot Criteria Attainment
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Plot MY4 Success Criteria
Tract Mean
1 y
100%
2 y
3 Y
4 Y
5 Y
6 Y
Table 9. CVS Vegetation Plot Metadata
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Database Name
cvs-eep-entrytool-v2.3.1 Hogan MY4.mdb
Database Location
Q:\ActiveProjects\005-02152 Hogan Monitoring\Monitoring\MY4\Vegetation Assessment
Computer Name
MIMI-PC
File Size
61771776
DESCRIPTION OF WORKSHEETS IN THIS DOCUMENT------------
Metadata
Description of database file, the report worksheets, and a summary of project(s) and project data.
Proj, planted
Each project is listed with its PLANTED stems per acre, for each year. This excludes live stakes.
Proj, total stems
Each project is listed with its TOTAL stems per acre, for each year. This includes live stakes, all planted stems, and all natural/volunteer stems.
Plots
List of plots surveyed with location and summary data (live stems, dead stems, missing, etc.).
Vigor
Frequency distribution of vigor classes for stems for all plots.
Vigor by Spp
Frequency distribution of vigor classes listed by species.
Damage
List of most frequent damage classes with number of occurrences and percent of total stems impacted by each.
Damage by Spp
Damage values tallied by type for each species.
Damage by Plot
Damage values tallied by type for each plot.
Planted Stems by Plot and Spp
A matrix of the count of PLANTED living stems of each species for each plot; dead and missing stems are excluded.
ALL Stems by Plot and spp
A matrix of the count of total living stems of each species (planted and natural volunteers combined) for each plot; dead and missing stems are excluded.
PROJECT SUMMARY -------------------------------------
Project Code
94708
Project Name
Hogan Creek
Description
River Basin
Length(ft)
Stream -to -edge Width (ft)
Area (sq m)
Required Plots (calculated)
Sampled Plots
6
Required Plots (calculated)
6
Sampled Plots
6
Table 10. Planted and Total Stem Counts
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Current Plot Data (MY4 20181
Scientific Name
Common Name
94708-01-0001
Species Type PnoLS P -all T
94708-01-0002
PnoLS P -all T
94708-01-0003
PnoLS P -all T
94708-01-0004
PnoLS P -all T
94708-01-0005
PnoLS P -all T
94708-01-0006
PnoLS P -all T
Acer rubrum
red maple
Tree
1
7
1
5
Betula nigra
river birch
Tree
10
Betula nigra
river birch
Tree
3
3
128
10
169
45
1
1
9
6
6
6
common persimmon
Tree
4
1
Diospyros virginiana
common persimmon
Tree
11
11
9
9
9
10
10
10
Fraxinuspennsylvanica
green ash
Tree
17
4
4
4
6
6
6
Fraxinus pennsylvanica
green ash
Tree
3
3
3
3
3
3
2
2
2
4
4
4
1
1
1
Juglons nigra
black walnut
Tree
3
Liriodendron tulipifera
tuliptree
Tree
70
62
3
64
Liriodendron tulipifera
tuliptree
Tree
blackgum
Tree
2
12
12
12
12
12
2
2
2
15
2
2
2
2
2
2
Nysso sylvatica
blackgum
Tree
3
2
15
Platanus occidentalis
2
2
2
Pinus toeda
loblolly pine
Tree
14
17
6
14
20
14
14
15
2
14
31
2
black cherry
Tree
3
27
2
Platanus occidentalis
American sycamore
Tree
2
2
2
3
3
19
1
1
1
8
8
8
2
1
1
Prunus serotina
black cherry
Tree
Quercus lyroto
overcup oak
Tree
13
13
13
15
15
15
17
17
17
16
Quercus alba
white oak
Tree
16
16
Quercus phellos
willow oak
ITree
6
6
6
4
4
4
1
1
1
1
1
1
2
Quercus lyrota
overcupoak
Tree
1
1
1
2
2
2
4
4
4
1
1
1
3
3
3
5
5
5
Quercus phellos
willow oak
Tree
6
6
6
6
2
2
2
size (ACRES)
0.148
Stem count
9
9
142
8
8
69
8
8
18
19
19
36
10
30
20
13
13
19
6
10
size (ares)
7
1
7
7
1
7
7
1
1
479
479
1
465
465
1
472
2259
size (ACRES)
438
0.0247
452
452
0.0247
0.0247
0.0247
0.0247
0.0247
Species count
4
4
6
3
3
4
4
4
5
4
4
6
4
4
7
3
3
7
Stems per ACRE
364
364
1 5747
324
324
2792
324
728
769
769
1457
405
405
809
526
526
769
Annual Means
Scientific Name
Common Name
MYO (20 5)
Species Type PnoLSTP-all T
MY1 (2015)
PnoLS P -all T
MY2 (20 6)
PnoLS P -all T
MY3 (2017)
PnoLS P -all T
MY4 (2018)
PnoLS P -all T
Acer rubrum
red maple
Tree
1
7
1
5
Betula nigra
river birch
Tree
10
10
10
10
10
149
10
10
169
10
10
165
10
10
193
Diospyros virginiana
common persimmon
Tree
11
11
11
9
9
9
10
10
10
Fraxinuspennsylvanica
green ash
Tree
17
17
17
14
14
14
15
15
15
13
13
13
13
13
13
Juglons nigra
black walnut
Tree
1
2
3
Liriodendron tulipifera
tuliptree
Tree
70
62
64
19
Nyssa sylvatica
blackgum
Tree
12
12
12
12
12
12
2
2
2
2
2
2
2
2
2
Pinus taeda
loblolly pine
Tree
3
2
15
Platanus occidentalis
American sycamore
Tree
13
13
13
14
14
17
14
14
20
14
14
15
14
14
31
Prunus serotina
black cherry
Tree
27
41
33
Quercus alba
white oak
Tree
2
1
1
Quercus lyroto
overcup oak
Tree
13
13
13
15
15
15
17
17
17
16
16
16
16
16
16
Quercus phellos
willow oak
ITree
6
6
6
4
4
4
1
1
1
1
1
1
2
2
2
Stem count
71
71
102
69
69
330
70
70
335
65
65
294
67
67
304
size (ares)
6
6
6
6
6
size (ACRES)
0.148
0.148
0.148
0.148
0.148
Species count
6
6
10
6
6
10
7
7
12
7
7
11
7
7
10
Stems per ACRE
479
479
688
465
465
2226
472
2259
438
438
1983
452
452
2050
Color for Density
Exceeds requirements by 10
Exceeds requirements, but by less than 10o
Fails to meet requirements, by less than 10
Fails to meet requirements by more than
Volunteer species included in total
PnoLS: Number of planted stems excluding live stakes
P -all: Number of planted stems including live stakes
T: Total stems
APPENDIX D. Morphological Summary Data and Plots
Table 11a. Baseline Stream Data Summary
Hogan Creek Stream Mitigation Project
DMS Project No.94708
Monitoring Year 4 - 2018
Hogan Creek - Reach 1(1,532 feet)
Parameter
Gage
Regional Curve
Pre -Existing Condition
Reference Reach Data
Design
Monitoring Baseline
LL UL Eq.
Min
Mean Med Max SD n
Min Mean Med
Max SD
n
Min
I Med I
Max
Min
I Mean
I Med Max
SD
n
Dimension and Substrate - Riffle Only
Bankfull Width (ft)
N/A
21.5
25.7 29.7
27.2
30.4
33.62-_.6
2.5
23.3
24.0
22.8
24.2
24.2 25.6
N/A
2
Floodprone Width (ft)
178.0 220.0 246.0 72.1 72.3 72.50.0 150.0 200.0 >100 >100 >100 >100 N/A
2
Bankfull Mean Depth (ft)
2.0 1.9 2.1 1.9 2.0 2.2.8 1.9 2.2 1.7 1.8 1.8 1.8 N/A
2
Bankfull Max Depth (ft)
2.5 2.7 3.2 2.4 2.5 2.7.5 2.6 2.8 2.7 2.8 2.8 2.9 N/A
2
Bankfull Cross Sectional Area (ft)45.1
48.6 59.3 50.8 61.6 72.40 44.1 47.6 41.4 42.7 42.7 43.9 N/A
2
Width/Depth Ratio
10.3 13.6 14.9 14.5 15.0 15.62.1 12.3 12.5 12.6 13.8 13.8 14.9 N/A
2
Entrenchment Ratio
8.3 8.6 8.3 2.7 2.7 2.7.4 6.5 8.3 >3.9 >4.2 >4.2 >4.4 N/A
2
Bank Height Ratio
1.3 1.3 1.4 1.0 1.0 1.1.0 1.0 1.0 1.0 1.0 1 1.0 1.0 N/A
2
Profile
Riffle Length (ft)
-
- -
-
-
-
-
-
-
37.17
58.9
- 98.4
8
Riffle Slope (ft/ft)
0.010
0.024 0.055
0.0191
0.0200.021
0.007 0.010 0.013 0.002 0.010
0.018
8
Pool Length (ft)
N/A
-
- -
-
-
-
25.0
62.6
88.0
13
Pool Max depth (ft)
4.0
4.3 4.7
3.4
3.5
3.5 -
4.0
4.0
4.0
2.5
3.2
4.1
13
Pool Spacing (ft)
-
- -
-
-
-
-
73.3
120.9
200.08
-
12
Pattern
Channel Beltwidth (ft)
44.0
65.0 117.0
86.0
86.0
86.0
48.0
88.0
126.0
63.0
96.5
101.0 121.0
24.9
4
Radius of Curvature (ft)
20.0
29.0 52.0
19.6
22.7
25.8
67.0
73.0
101.0
70.0
76.5
75.0 86.0
6.8
4
Rc:Bankfull width (ft/ft)
N/A
0.9
1.1 1.8
0.7
0.8
0.9
3.0
3.1
4.2
2.9
3.2
3.1 3.6
N/A
N/A
Meander Wavelength (ft)
133.0
297.0 479.0
81.0
81.0
81.0
133.0 311.0 325.0 165.0 263.7
306.0 320.0
85.7
3
Meander Width Ratio
2.0
2.5 3.9
3.2
3.2
3.2
2.1
3.8
5.3
2.6
4.0
4.2 5.0
N/A
N/A
Substrate, Bed, and Transport parameters
Ri%/ Ru%/ P%/ G%/ S%
-
-
-
SC%/ Sa%/ G%/ C%/ B%/ Be%
0%,3.5%,96%,0.5%,0%,0%
d16 / d35 / d50 / d84 / d95 (mm)
14, 19, 23, 41, 56
Reach Shear Stress (competency) lb/f'
N/A
Max part size (mm) mobilized at bankfull
Stream Power (transport capacity) W/mZ
Additional Reach Parameters
Rosgen Classification
N/A
C4
C4
C4
C4
Bankfull Velocity (fps)
-
Bankfull Discharge (cfs)
-
Valley length (ft)
2,525 4,730 1,294
Channel Thalweg length (ft)
2,762 327 2,897 1,532
Sinuosity (ft)
1.12 1.26 1.15 1.18
Water Surface Slope (Channel) (ft/ft)
0.0064 0.0127 0.0071 0.0063
BF slope (ft/ft)
0.0071 0.0101 0.0062 0.0067
Bankfull Floodplain Area (acres)
- - - -
%of Reach with Eroding Banks
Channel Stability or Habitat Metric
Biological or Other
N/A - Not Applicable
- Information Unavailable
Table 11b. Baseline Stream Data Summary
Hogan Creek Stream Mitigation Project
DMS Project No.94708
Monitoring Year 4 - 2018
Hogan Creek - Reach 2 (1,085 feet)
Parameter
Gage
Regional Curve
Pre -Existing Condition
Reference Reach Data
Design
Monitoring Baseline
LL UL Eq.
Min
Mean Med Max SD n
Min Mean Med
Max SD
n
Min
I Med I
Max
Min
Mean
I Med I Max
SD
n
Dimension and Substrate - Riffle Only
Bankfull Width (ft)
N/A
21.5
25.7 29.7
27.2
30.4
33.6
22.5
23.3
24.0
24.2
24.5
24.5 24.7
N/A
2
Floodprone Width (ft)
178.0 220.0 246.0 72.1 72.3 72.5 100.0 150.0 200.0 >100 >100 >100 >100 N/A
2
Bankfull Mean Depth (ft)
2.0 1.9 2.1 1.9 2.0 2.2 1.8 1.9 2.2 1.9 2.1 2.1 2.3 N/A
2
Bankfull Max Depth (ft)
2.5 2.7 3.2 2.4 2.5 2.7 2.5 2.6 2.8 3.2 3.4 3.4 3.6 N/A
2
Bankfull Cross Sectional Area (ft)
45.1 48.6 59.3 50.8 61.6 72.4 40.6 44.1 47.6 45.2 50.9 50.9 56.6 N/A
2
Width/Depth Ratio
10.3 13.6 14.9 14.5 15.0 15.6 12.1 12.3 12.5 10.8 11.9 11.9 13.0 N/A
2
Entrenchment Ratio
8.3 8.6 8.3 2.7 2.7 2.7 4.4 6.5 8.3 >4.0 >4.1 >4.1 >4.1 N/A
2
Bank Height Ratio
1.3 1.3 1.4 1.0 1.0 1.1 1.0 1.0 1.0 1.0 1.0 1.0 1.0 N/A
2
Profile
Riffle Length (ft)
-
- -
-
-
-
-
-
-
95.63
111.62
- 130.25
5
Riffle Slope (ft/ft)
0.010
0.024 0.055
0.019
0.020 0.021
0.007 0.010 0.013 0.004
0.005
0.007
5
Pool Length (ft)
N/A
-
- -
-
-
-
-
-
-
43.7
68.8
117.1
5
Pool Max depth (ft)
4.0
4.3 4.7
3.4
3.5
3.5
4.0
4.0
4.0
3.80
4.73
5.8
5
Pool Spacing (ft)
-
- -
-
-
-
-
164.1
208.4
253.1
4
Pattern
Channel Beltwidth (ft)
44.0
65.0 117.0
86.0
86.0
86.0
48.0
88.0
126.0
84.0
114.0
117.0 141.0
28.6
3
Radius of Curvature (ft)
20.0
29.0 52.0
19.6
22.7
25.8
67.0
73.0
101.0
69.0
73.3
74.0 75.0
2.8
5
Rc:Bankfull width (ft/ft)
N/A
0.9
1.1 1.8
0.7
0.8
0.9
3.0
3.1
4.2
2.8
3.0
3.0 3.1
N/A
N/A
Meander Wavelength (ft)
133.0
297.0 479.0
81.0
81.0
81.0
133.0 311.0 325.0 292.0
307.0
301.0 328.0
18.7
3
Meander Width Ratio
2.0
2.5 3.9
3.2
3.2
3.2
2.1
3.8
5.3
3.4
4.7
4.8 5.8
N/A
N/A
Substrate, Bed, and Transport parameters
Ri%/ Ru%/ P%/ G%/ S%
-
-
SC%/ Sa%/ G%/ C%/ B%/ Be%
0%,3%,9%,89%,0%,0%
d16 / d35 / d50 / d84 / d95 (mm)
13, 24, 22, 35, 49
Reach Shear Stress (competency) Ib/f2
N/A
Max part size (mm) mobilized at bankfull
Stream Power (transport capacity) W/mZ
Additional Reach Parameters
Rosgen Classification
N/A
C4
C4
C4
C4
Bankfull Velocity (fps)
- -
Bankfull Discharge (cfs)
Valley length (ft)
2,525 4,730 794
Channel Thalweg length (ft)
2,762 327 2,897 1,085
Sinuosity (ft)
1.12 1.26 1.15 1.37
Water Surface Slope (Channel) (ft/ft)
0.0064 0.0127 0.0071 0.0050
BF slope (ft/ft)
0.0071 0.0101 0.0062 0.0053
Bankfull Floodplain Area (acres)
- - - -
%of Reach with Eroding Banks
Channel Stability or Habitat Metric
Biological or Other
N/A - Not Applicable
- Information Unavailable
Table 11c. Baseline Stream Data Summary
Hogan Creek Stream Mitigation Project
DMS Project No.94708
Monitoring Year 4 - 2018
UT2 (675 feet)
Parameter
Gage
Regional Curve
Pre -Existing Condition
Reference Reach Data
Design
Monitoring Baseline
LL UL Eq.
Min
Mean Med Max SD
n
Min
Mean Med Max SD
n Min
Med
Max
Min
Mean
Med Max
SD
n
Dimension and Substrate - Riffle Only
Bankfull Width (ft)
N/A
8.2
7.1
9.0
6.5
7.1
7.1 7.6
N/A
2
Floodprone Width (ft)
66.0 15.0 30.0 21 24.9 24.9 28.8 N/A
2
Bankfull Mean Depth (ft)
1.5 0.9 0.7 0.5 0.6 0.6 0.7 N/A
2
Bankfull Max Depth (ft)
2.1 1.2 1.0 0.9 1.1 1.1 1.2 N/A
2
Bankfull Cross Sectional Area (ft2)
12.1 6.6 6.5 4.0 4.4 4.4 4.7 N/A
2
Width/Depth Ratio
5.6 7.6 12.5 8.9 11.6 11.6 14.2 N/A
2
Entrenchment Ratio
8.0 2.1 3.3 3.2 3.5 3.5 3.8 N/A
2
Bank Height Ratio
1.6 1.0 1.0 1.0 1.0 1.0 1.0 N/A
2
Profile
Riffle Length (ft)
-
-
-
-
14.3
34.4
- 67.3
11
Riffle Slope (ft/ft)
0.030
0.033 0.056
0.023
0.033 0.036
0.027 0.032 0.0381 0.014
0.028
0.052
11
Pool Length (ft)
N/A
-
-
-
-
-
4.2
11.0
27.1
12
Pool Max depth (ft)
2.7
1.5
1.6
1.2
2.0
3.2
12
Pool Spacing (ft)
-
-
-
13.1
54.8
151.0
11
Pattern
Channel Beltwidth (ft)
28.0
42.0 56.0
62.0
67.5 73.0
17.0
26.0
49.0
26.0
38.0
39.0 54.0
2.7
5
Radius of Curvature (ft)
16.0
18.5 21.0
7.0
16.0 25.0
22.0
27.0
30.0
19.0
21.6
22.0 26.0
2.4
6
Rc:Bankfull width (ft/ft)
N/A
2.0
2.3 2.6
1.0
2.3 3.5
2.4
3.0
3.3
2.7
3.0
3.1 3.7
N/A
N/A
Meander Wavelength (ft)
128.0
159.0 190.0
53.0
58.5 64.0
73.0
103.0 130.0 101.0
112.3
109.5 132.0
2.7
6
Meander Width Ratio
3.4
5.1 6.8
8.7
9.5 10.3
1.9
2.9
5.5
3.7
5.4
5.5 7.6
N/A
N/A
Substrate, Bed, and Transport parameters
Ri% / Ru%/ P%/ G%/ S%
-
-
SC%/ Sa%/ G%/ C%/ 3%/ Be%
N/A
d16/d35/d50/d84/d95 (mm)
N/A
Reach Shear Stress (competency) Ib/f2
N/A
Max part size (mm) mobilized at Bankfull
Stream Power (transport capacity) W/mZ
-
Additional Reach Parameters
Rosgen Classification
N/A
E4b
E4b
B4
64
Bankfull Velocity (fps)
- -
Bankfull Discharge (cfs)
-
Valley length (ft)
641 1,350 544
Channel Thalweg length (ft)
568 1,980 555 675
Sinuosity (ft)
1.33 1.47 1.4 1.24
Water Surface Slope (Channel) (ft/ft)
0.0235 0.0263 0.0223 0.0218
BF slope (ft/ft)
0.0312 0.0356 0.0312 0.0229
Bankfull Floodplain Area (acres)
- - - -
of Reach with Eroding Banks
Channel Stability or Habitat Metric
Biological or Other
N/A - Not Applicable
- Information Unavailable
Table 12. Morphology and Hydraulic Summary (Dimensional Parameters - Cross -Section)
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Hogan Reach 1 (1,532 feet)
Based on fixed baseline bankfull elevation
Base
MY1
MY2
MY3
I MY4 21
MY5 Base
I MYl
MY2
MY3
I MY4 21
MY5 Base
I MYl I
MY2
MY3
MY42 MYS
bankfull elevation (ft)
990.8
990.8
990.8
990.8
991.0
990.7
990.7
990.7
990.7
990.8
987.6
987.6
987.6
987.6
987.4
low bank elevation (ft)
990.8
990.8
990.9
990.9
990.8
990.7
990.7
990.7
990.6
990.6
987.6
987.6
987.7
987.9
987.9
Bankfull Width (ft)
25.6
25.4
25.6
22.7
29.4
29.1
30.6
26.2
25.8
29.1
22.8
22.9
22.9
22.4
19.1
Floodprone Width (ft)
>100
>100
>100
>100
>100
N/A
N/A
N/A
N/A
N/A
>100
>100
>100
>100
>100
Bankfull Mean Depth (ft)
1.7
1.6
1.7
1.8
1.5
2.0
2.2
2.0
2.1
2.0
1.8
2.0
2.4
2.5
2.2
Bankfull Max Depth (ft)
2.9
2.9
3.2
3.3
3.4
4.5
4.9
4.9
4.4
4.8
2.7
3.6
4.0 1
4.0
3.4
Bankfull Cross Sectional Area (ft)1
43.9
41.8
44.2
39.9
1 43.9 1
57.6
66.7
64.2
54.9
1 57.6 1
41.4
45.9
54.6
55.3
41.4
Bankfull Width/Depth Ratio
14.9
15.4
14.8
12.9
19.7
14.7
14.1
10.7
12.1
14.7
12.6
11.4
9.6
9.1
8.8
Bankfull Entrenchment Ratio
>3.9
>3.9
>3.8
>4.4
N/A
N/A
N/A
N/A
N/A
N/A
>4.4
>4.4
>4.4
>4.5
>5.2
Bankfull Bank Height Ratio
1.0
1.0
1.0
1.0
�42
N/A
N/A
N/A
N/A
N/A
1.0
1.0
1.0
1.1
1.1
d50 (mm)
19
23
17
41
N/A
N/A
N/A
N/A
N/A
N/A
26
29
6.9
1.0
7.1
Hogan Reach 2 (1,085 feet)
Based on fixed baseline bankfull elevation
Base
Cross
MYl
-Section
MY2
4 (Pool)
MY3
MY4Z
MY5 Base
Cross
MY1
-Section
MY21
5 (Riffle)
MY3
MY4Z
MYS Base
Cross
MYl
-Section
MY2
6 (Riffle)
MY3
MY4Z MY5
bankfull elevation (ft)
984.0
984.0
984.0
984.0
984.7
983.6
983.6
983.6
983.6
983.3
982.1
982.1
982.1
982.1
981.9
low bank elevation (ft)
984.0
984.0
984.0
984.0
984.0
983.6
983.6
983.7
983.8
983.8
982.1
982.1
982.0
981.9
981.9
Bankfull Width (ft)
44.6
45.5
44
43.2
60.4
24.2
24.8
23.6
24.7
23.7
24.7
28.1
28.2
28.7
26.1
Floodprone Width (ft)
N/A
N/A
N/A
N/A
N/A
>100
>100
>100
>100
>100
>100
>100
>100
>100
>100
Bankfull Mean Depth (ft)
2.2
2.1
1.6
1.7
1.6
1.9
2.0
2.4
2.5
1.9
2.3
2.0
2.2
2.1
2.2
Bankfull Max Depth (ft)
4.2
4.3
4.2
4.6
4.7
3.2
3.6
3.9
3.6
2.9
3.6
3.8
3.9
3.8
4.1
Bankfull Cross Sectional Area (ft)
98.9
95.4
69.1
72.5
98.9
45.2
49.2
56.6
61
45.2
56.6
56.5
61.1
61.4
56.6
Bankfull Width/Depth Ratio
20.1
21.7
28.1
25.7
36.9
13.0
12.5
9.8
10
12.4
10.8
14.0
13
13.4
12.0
Bankfull Entrenchment Ratio
N/A
N/A
N/A
N/A
N/A
>4.1
>4.0
>4.2
>4.0
>4.2
>4.0
>3.6
>3.5
>3.5
>3.8
Bankfull Bank Height Ratio
N/A
N/A
N/A
N/A
N/A
1.0
1.0
1.0
1.0
1.2
1.0
1.0
1.0
<1.0
1.0
d50 (mm)
N/A
N/A
N/A
N/A
N/A
27
32
6.4
41
29
31
30
0.18
64
56.1
UT2 (675 feet)
ft .
Based on fixed baseline bankfull elevation Base
Cross
MYl
-Section
MY21
7 (Riffle)
MY3
MY4'
..
MY5 Base
Cross
MY1
-Section
MY2
8 (Pool)
MY3
MY42
..
MY5 Base
Cross
MY1
-Section
MY2
9 (Riffle)
MY3
MY42 MYS
bankfull elevation (ft) 989.4 989.4 989.4 989.4 989.7
988.2 988.2 988.2 988.2 988.5
986.4 986.4 986.4 986.4 986.9
low bank elevation (ft) 989.4 989.4 989.3 989.4 989.7
988.2 988.3 988.3 988.3 993.4
986.4 986.5 986.4 986.5 986.8
Bankfull Width (ft) 7.6
6.9
7.9
6.2
8.2
6.9
7.1
7.1
5.7
6.7
6.5
6.8
6.8
5.5
8.1
Floodprone Width (ft) 28.8
29.0
30
29.3
25.9
N/A
N/A
N/A
N/A
N/A
21.0
20.6
19.2
18.8
17.8
Bankfull Mean Depth (ft) 0.5
0.5
0.6
0.6
0.5
0.6
0.7
0.7
0.7
0.7
0.7
0.7
0.6
0.5
0.6
Bankfull Max Depth (ft) 0.9 1
1.0
1 1.1
1.0 1
1.0 1
1.0 1
1.3 1
1.0
1.3
1 1.2 1
1.2
1.1 1
0.9 1
0.8
1.1
Bankfull Cross Sectional Area (ft) 4.0
3.5
4.9
3.5
4.0
4.4
5.1
4.7
4.3
4.4
4.7
4.6
4.1
2.7
4.7
Bankfull Width/Depth Ratio 14.2
13.6
12.8
10.8
17.1
10.7
9.8
10.8
7.7
10.3
8.9
10.3
11.3
11.2
14.1
Bankfull Entrenchment Ratio 3.8
4.2
3.8
4.7
3.1
N/A
N/A
N/A
N/A
N/A
3.2
3.0
2.8
3.4
2.2
Bankfull Bank Height Ratio 1.0
1.0
1.0
1.0
1.0
N/A
N/A
N/A
N/A
N/A
1.0
1.0
1.0
1.1
<1.0
d50(mm) N/A
N/A
I N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A - Not Applicable
1Adjustment in survey points included in bankfull calculations resulting in change to previous monitoring year bankfull dimensions.
ZPrior to MY4, bankfull dimensions were calculated using a fixed bankfull elevation. For MY4 through MY5 bankfull elevation is calculated using a fixed Abkf as described in the Standard Measurement of the
BHR Monitoring Parameter provided by NCIRT and NCDMS (9/2018)
Table 13a. Monitoring Data - Stream Reach Data Summary
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Hogan Creek -Reach 1 (1,532 feet)
N/A - Not Applicable
- Information Unavailable
Min I
Mean
I Med I Max I
SD I
n
I Min I
Mean
I Med I Max I
SD I
n
I Min
Mean
I Med Max I
SD I
n
Min
Mean I
Med I Max
SD I
n
I Min I
Mean
I Med I Max
SD
n Min Mean Med Max SD n
Dimension and Substrate - Riffle only
Bankfull Width (ft)
22.8
24.2
24.2 25.6
N/A
2
22.9
24.2
24.2 25.4
N/A
2
22.9
24.25
24.25 25.6
N/A
2
22.4
22.6
22.6 22.7
N/A
2
19.1
24.3
24.3 29.4
N/A
2
Floodprone Width (ft)
>100
>100
>100 >100
N/A
2
>100
>100
>100 >100
N/A
2
>100
>100
>100 >100
N/A
2
>100
>100
>100 >100
N/A
2
>100
>100
>100 >100
N/A
2
Bankfull Mean Depth (ft)
1.7
1.8
1.8 1.8
N/A
2
1.6
1.8
1.8 2.0
N/A
2
1.7
2.1
2.1 2.4
N/A
2
1.8
2.2
2.2 2.5
N/A
2
1.5
1.9
1.9 2.2
N/A
2
Bankfull Max Depth (ft)
2.7
2.8
2.8 2.9
N/A
2
2.9
3.3
3.3 3.6
N/A
2
3.2
3.6
3.6 4
N/A
2
3.3
3.7
3.7 4.0
N/A
2
3.4
3.4
3.4 3.4
N/A
2
Bankfull Cross Sectional Area (ft2)
41.4
42.7
42.7 43.9
N/A
2
41.8
43.9
43.9 45.9
N/A
2
44.2
49.4
49.4 54.6
N/A
2
39.9
47.6
47.6 55.3
N/A
2
41.4
42.7
42.7 43.9
N/A
2
Width/Depth Ratio
12.6
13.8
13.8 14.9
N/A
2
11.4
13.4
13.4 15.4
N/A
2
9.6
12.2
12.2 14.8
N/A
2
9.1
11.0
11.0 12.9
N/A
2
8.8
14.3
14.3 19.7
N/A
2
Entrenchment Ratio
>3.9 1
>4.2
1 >4.2 1 >4. 1
N/A 1
2
1 >3.9 1
>4.2
1 >4.2 1 >4.4 1
N/A 1
2
1 >3.8
>4.1
1 >4.1 >4.4
N/A
2
>4.4
>4.45
>4.45 >4.5
N/A
2
>3.4
F>4.3
>4.3 >5.2
N/A
2
Bank Height Ratiol
1.0 1
1.0
1 1.0 1 1.0 1
N/A 1
2
1 1.0 1
1.0
1 1.0 1 1.0 1
N/A 1
2
1 1.0
1 1.0
1 1.0 1 1.0 1
N/A 1
2
1 1.0
1 1.1 1
1.1 1 1.1 1
N/A 1
2
1 0.9 1
1.0
1 1.0 1 1.1
N/A
2
Profile
Riffle Length (ft) 37.17
58.9
- 98.4
8
15.0
62.1
73.5 98.0
8
11.7
23.2
23.6 38
10
10.1
29.0
26.1 53.3
10
16.6
43.0
37.4 97.6
11
Riffle Slope (ft/ft) 0.002
0.010
0.018
8
0.006
0.013
0.011 0.020
8
0.011
0.05
0.022 0.057
10
0.011
0.029
0.022 0.072
10
0.007
0.023
0.021 0.051
11
Pool Length (ft)
25.0
62.6
88.0
13
20.0
67.1
76.0 105.0
13
30.87
85.3
89.5 140.8
13
32.4
100.7
115.4 170.7
12
13.8
98.1
99.7 172.0
11
Pool Max depth (ft)
2.5
3.2
4.1
13
2.8
3.7
3.4 4.8
13
2.3
3.7
3.6 5.1
13
2.4
3.8
3.8 5.8
12
3.2
4.0
3.9 5.6
11
Pool Spacing (ft)
73.3
120.9
200.1
12
52.0
112.8
111.0 148.0
12
57
110.1
103 204.0
12
46.9
122.5
120.9 180.5
11
61.5
132.0
129.1 230.6
10
Pattern
Channel Beltwidth (ft)
63.0
96.5
101.0 121.0
24.9
4
Radius of Curvature (ft)
70.0
76.5
75.0 86.0
6.8
4
Rc:Bankfull width (ft/ft)
2.9
3.2
3.1 3.6
N/A
N/A
Meander Wavelength (ft) 165.0
263.7
306.0 320.0
85.7
3
Meander Width Ratio
2.6
4.0
4.2 5.0
N/A
N/A
Additional Reach Parameters
Rosgen Classification
C4
C4
C4
C4
C4
Channel Thalweg length (ft)
1,532
1,530
1,532
1,532
1,532
Sinuosity (ft)
1.18
1.18
1.18
1.18
1.18
Water Surface Slope (Channel) (ft/ft)
0.0063
0.0064
0.007
0.0064
0.0060
BF slope (ft/ft)
0.0067
0.0069
0.0069
0.0068
0.0067
Ri%/Ru%/P%/G%/S%
--
-
-
- -
-
-
-
- -
-
-
-
- -
-
-
- -
SC%/ Sa%/ G%/ C%/ B% / Be%
0%
3.5%L96%
0.5%
0%
0%
0%
0.5%
98% 1.5%
0%
0%
13%
21.0%
64% 3.0%
0%
0%
12%
20%
53% 14.5%
0.5%
0%
5%
23%
58% 14.0%
0%
0%
d16 / d35 / d50 / d84 / d95 /
14
19
23 41
56
13
21
27 44
62
0.19
6.1
10 1 33
50
0.20
5.6
21 63
139
0.40 1
7.5
1 17 61 1
105
% of Reach with Eroding Banks
0%
7%
9%
9%
9%
Channel Stability or Habitat Metric:::::::
Biological or Other
11iff=
=E=
I � � � � � � � � � � � E=
N/A - Not Applicable
- Information Unavailable
Table 13b. Monitoring Data - Stream Reach Data Summary
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Hogan Creek -Reach 2 (1,085 feet)
Min
Mean
Med I Max
SD
n
Min
Mean
Med Max
SD
n
Min
Mean
Med I Max
SD
n
Min
Mean
Med I Max
SD
n
Min
Mean
Med Max I
SD I
n JMinJMeanJMedJMaxJ SD n
Dimension and Substrate - Riffle only
Bankfull Width (ft) 24.2
24.5
24.5 24.7
N/A
2
24.8
26.5
26.5 28.1
N/A
2
23.6
25.9
25.9 28.2
N/A
2
24.7
26.7
26.7 28.7
N/A
2
23.7
24.9
24.9 26.1
N/A
2
Floodprone Width (ft) >100
>100
>100 >100
N/A
2
>100
>100
>100 >100
N/A
2
>100
>100
>100 >100
N/A
2
>100
>100
>100 >100
N/A
2
>100
>100
>100 >100
N/A
2
Bankfull Mean Depth (ft) 1.9
2.1
2.1 2.3
N/A
2
2.0
2.0
2.0 2.0
N/A
2
2.2
2.3
2.3 2.4
N/A
2
2.1
2.3
2.3 2.5
N/A
2
1.9
2.1
2.1 2.2
N/A
2
Bankfull Max Depth (ft) 3.2
3.4
3.4 3.6
N/A
2
3.6
3.7
3.7 3.8
N/A
2
3.9
3.9
3.9 3.9
N/A
2
3.6
3.7
3.7 3.8
N/A
2
2.9
3.5
3.5 4.1
N/A
2
Bankfull Cross Sectional Area (ft2) 45.2
50.9
50.9 56.6
N/A
2
49.2
52.9
52.9 56.5
N/A
2
56.6
58.9
58.9 61.1
N/A
2
61.0
61.2
61.2 61.4
N/A
2
45.2
50.9
50.9 56.6
N/A
2
Width/Depth Ratio 10.8
11.9
11.9 13.0
N/A
2
12.5
13.3
13.3 14.0
N/A
2
9.8
11.4
11.4 13.0
N/A
2
10.0
11.7
11.7 13.4
N/A
2
12
12.2
12.2 12.4
N/A
2
Entrenchment Ratio >4.0
1 >4.1 1
>4.1 1 >4.1
N/A
2
>3.6
>3.8
>3.8 >4.0
N/A
2
>3.5
>3.75
1 >3.75 1 >4.0
N/A
2
>3.5
>3.75
>3.75 >4.0
N/A
2
>3.8
>4.0
>4.0 >4.2 1
N/A
2
Bank Height Ratiol 1.0
1 1.0 1
1.0 1 1.0
N/A 1
2
1 1.0
1 1.0
1.0 1 1.0 1
N/A 1
2
1.0 1
1.0
1 1.0 1 1.0 1
N/A 1
2
1 0.9
1 1.0 1
1.0 1.0
N/A
2
1.0
1.1
1.1 1.2
N/A
2
Profile
Riffle Length (ft) 95.6
111.6
- 130.3
5
56.0
91.0
101.0 125.0
5
24.7
51.8
46.9 97.6
5
19.6
46.3
43.2 68.2
5
51.5
94.0
69.9 151.2
5
Riffle Slope (ft/ft) 0.004
0.005
0.007
5
0.004
0.009
0.007 0.018
5
0.008
0.012
0.01 0.017
5
0.006
0.009
0.007 0.014
5
0.004
0.0089
0.009 0.012
5
Pool Length (ft) 43.7
68.8
117.1
5
60.0
87.3
64.0 135.0
5
29.91
74.4
75.4 107.0
5
54.0
71.1
58.1 117.1
5
42.3
98.1
87.5 184.1
5
Pool Max depth (ft) 3.8
4.7
5.8
5
4.0
4.8
4.6 5.7
5
3.77
4.4
4.4 5.4
5
3.5
4.5
4.4 6.0
5
4.2
4.9
4.5 6.0
5
Pool Spacing (ft) 164.1
208.4
253.1
4
169.0
196.5
189.5 238.0
4
93.7
134.2
129.4 201.0
4
76.8
140.8
142.6 201.3
4
188.1
202.1
203.0 214.4
4
Pattern
Channel Beltwidth (ft) 84.0
114.0
117.0 141.0
28.6
3
Radius of Curvature (ft) 69.0
73.3
74.0 75.0
2.8
5
Rc:Bankfull width (ft/ft) 2.8
3.0
3.0 3.1
N/A
N/A
Meander Wavelength (ft) 292.0
307.0
301.0 328.0
18.7
3
Meander Width Ratio 3.4
4.7
4.8 5.8
N/A
N/A
Additional Reach Parameters
Rosgen Classification
C4
C4
C4
C4
C4
Channel Thalweg length (ft)
1,085
1,085
1,085
1,085
1,085
Sinuosity (ft)
1.37
1.37
1.37
1.37
1.37
Water Surface Slope (Channel) (ft/ft)
0.0050
0.0045
0.005
0.0054
0.0053
BF slope (ft/ft)
0.0053
0.0053
0.0053
0.0057
0.0062
Ri%/Ru%/P%/G%/S%
-
- -
-
-
-
-
- -
-
-
-
- -
-
-
-
- -
-
-
-
- -
-
SC% / Sa% / G% / C% / B% / Be% 0%
3%
9% 89%
0%
0%
0%
0%
99% 1%
0%
0%
17%
50.0%
31% 2.0%
0%
0%
0%
13.0%
51% 32%
4%
0%
0%
5.0%
69% 23%
3%
0%
d16 / d35 / d50 / d84 / d95 / 13
24
22 35
49
18
25
31 1 52
70
0.062
0.16
0.3 17
40
7.1
31
46 1 138 1
243
13
24
37 1 95
224
% of Reach with Eroding Banks
0%
2%
13%
6%
10%
Channel Stability or Habitat Metric
Biological or Other
N/A - Not Applicable
- Information Unavailable
Table 13c. Monitoring Data - Stream Reach Data Summary
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
UT2 (675 feet)
N/A - Not Applicable
- Information Unavailable
Min I
Mean
I Med I Max I
SD
I n
I Min
Mean
I Med I Max I
SD I
n
I Min
Mean
I Med Max
SD
n
Min
Mean
Med Max
SD I
n
Min
Mean
Med Max
SD
n Min Mean Med Max SD n
Dimension and Substrate - Riffle only
Bankfull Width (ft)
6.5
7.1
7.1 7.6
N/A
2
6.8
6.9
6.9 6.9
N/A
2
6.8
7.4
7.4 7.9
N/A
2
5.5
5.85
5.85 6.2
N/A
2
8.1
8.2
8.2 8.2
N/A
2
Floodprone Width (ft)
21
24.9
24.9 28.8
N/A
2
20.6
24.8
24.8 29.0
N/A
2
19.2
24.6
24.6 30
N/A
2
18.8
24.05
24.05 29.3
N/A
2
17.8
21.9
21.9 25.9
N/A
2
Bankfull Mean Depth (ft)
0.5
0.6
0.6 0.7
N/A
2
0.5
0.6
0.6 0.7
N/A
2
0.6
0.6
0.6 0.6
N/A
2
0.5
0.55
0.55 0.6
N/A
2
0.5
0.6
0.6 0.6
N/A
2
Bankfull Max Depth (ft)
0.9
1.1
1.1 1.2
N/A
2
1.0
1.1
1.1 1.1
N/A
2
0.9
1.0
1.0 1.1
N/A
2
0.8
0.9
0.9 1
N/A
2
1.0
1.1
1.1 1.1
N/A
2
Bankfull Cross Sectional Area (ft2)
4.0
4.4
4.4 4.7
N/A
2
3.5
4.1
4.1 4.6
N/A
2
4.1
4.5
4.5 4.9
N/A
2
2.7
3.1
3.1 3.5
N/A
2
4.0
4.4
4.4 4.7
N/A
2
Width/Depth Ratio
8.9
11.6
11.6 14.2
N/A
2
10.3
12.0
12.0 13.6
N/A
2
11.3
12.1
12.1 12.8
N/A
2
10.8
11
11 11.2
N/A
2
14.1
15.6
15.6 17.1
N/A
2
Entrenchment Ratiol
3.2 1
3.5
3.5 1 3.8 1
N/A
1 2
1 3.0
3.6
1 3.6 1 4.2 1
N/A 1
2
1 2.8
3.3
1 3.3 3.8
N/A
2
3.4
4.05
4.05 4.7
N/A
2
2.2
2.7
2.7 3.1
N/A
2
Bank Height Ratiol
1.0 1
1.0
1.0 1 1.0 1
N/A
2
1.0
1.0
1.0 1.0
N/A
2
1.0
1.0
1.0 1.0
N/A
2
1
1.05
1.05 1.1
N/A
2
0.9
1.0
1.0 1.0
N/A
2
Profile
Riffle Length (ft)
14.3
34.4
- 67.3
11
12.0
28.9
29.0 62.0
11
7.88
29.3
25.6 69.8
11
12.4
26.8
24.4 45.9
11
5.2
19.7
16.6 55.4
16
Riffle Slope (ft/ft) 0.014
0.028
0.052
11
0.014
0.026
0.024 0.050
11
0.012
0.041
0.030 0.099
11
0.011
0.036
0.032 0.071
11
0.023
0.050
0.044 0.130
16
Pool Length (ft)
4.2
11.0
27.1
12
7.0
13.3
12.0 28.0
13
7.07
17.2
13.7 50.4
13
7.9
19.5
19.4 35.6
10
10.0
18.8
18.0 39.8
16
Pool Max depth (ft)
1.2
2.0
3.2
12
1.1
1.7
1.7 2.4
13
1.14
1.7
1.7 2.3
13
1.0
1.8
1.9 2.8
10
0.8
1.6
1.6 2.6
15
Pool Spacing (ft)
13.1
54.8
151.0
-
11
8.0
50.4
43.5 145.0
12
11.9
47.8
35.9 137.8
12
22.1
57.6
48.6 134.3
9
14.6
42.0
36.8 142.0
14
Pattern
Channel Beltwidth (ft)
26.0
38.0
39.0 54.0
2.7
5
Radius of Curvature (ft)
19.0
21.6
22.0 26.0
2.4
6
Rc:Bankfull width (ft/ft)
2.7
3.0
3.1 3.7
N/A
N/A
Meander Wavelength (ft) 101.0
112.3
109.5 132.0
2.7
6
Meander Width Ratio
3.7
5.4
5.5 7.6
N/A
N/A
Additional Reach Parameters
Rosgen Classification
B4
B4
B4
B4
B4
Channel Thalweg length (ft)
675
670
675
675
675
Sinuosity (ft)
1.24
1.24
1.24
1.24
1.24
Water Surface Slope (Channel) (ft/ft)
0.0218
0.0208
0.0215
0.0205
0.0199
BF slope (ft/ft)
0.0229
0.0226
0.0224
0.0222
0.0224
Ri%/ Ru%/ P%/ G%/ S%
SC%/Sa%/G%/C%/B%/Be%
d16/d35/d50/d84/d95/
% of Reach with Eroding Banks
Channel Stability or Habitat Metric
Biological or Other
0%
1111110-,
0%
0%
11111111
0%
0%
N/A - Not Applicable
- Information Unavailable
Cross -Section Plots
Hogan Creek Stream Mitigation Project
NCDMS Project No. 94708
Monitoring Year 4 - 2018
Cross -Section 1 -Hogan Creek Reach 1
22+67 Riffle
995
43.9
x -section area (ft.sq.)
29.4
width (ft)
994
993
mean depth (ft)
3.4
max depth (ft)
992
wetted perimeter (ft)
c 991
0
hydraulic radius (ft)
990
v
989
width -depth ratio
988
W flood prone area (ft)
3.4
entrenchment ratio
987
0 10 20 30 40 50 60
Width (ft)
low bank height ratio
—MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea
Bankfull Dimensions
43.9
x -section area (ft.sq.)
29.4
width (ft)
1.5
mean depth (ft)
3.4
max depth (ft)
30.8
wetted perimeter (ft)
1.4
hydraulic radius (ft)
19.7
width -depth ratio
100.0
W flood prone area (ft)
3.4
entrenchment ratio
0.9
low bank height ratio
Survey Date: 7/2018
Field Crew: Kee Mapping & Surveying
View Downstream
Cross -Section Plots
Hogan Creek Stream Mitigation Project
NCDMS Project No. 94708
Monitoring Year 4 - 2018
Cross -Section 2 -Hogan Creek Reach 1
23+07 Pool
993
992
x -section area (ft.sq.)
991
width (ft)
2.0
mean depth (ft)
990
max depth (ft)
989
2
988 —
w
987
1.8
986
14.7
width -depth ratio
985
0 10 20 30 40 50 60
Width (ft)
—MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull
Bankfull Dimensions
57.6
x -section area (ft.sq.)
29.1
width (ft)
2.0
mean depth (ft)
4.8
max depth (ft)
31.7
wetted perimeter (ft)
1.8
hydraulic radius (ft)
14.7
width -depth ratio
Survey Date: 7/2018
Field Crew: Kee Mapping & Surveying
View Downstream
Cross -Section Plots
Hogan Creek Stream Mitigation Project
NCDMS Project No. 94708
Monitoring Year 4 - 2018
Cross -Section 3 -Hogan Creek Reach 1
26+78 Riffle
991
990
x -section area (ft.sq.)
989
width (ft)
988
mean depth (ft)
3.4
max depth (ft)
c 987
0
wetted perimeter (ft)
986
v
hydraulic radius (ft)
985
984
width -depth ratio
100.0
983
0 10 20 30 40 50 60
Width (ft)
5.2
—MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea
Bankfull Dimensions
41.4
x -section area (ft.sq.)
19.1
width (ft)
2.2
mean depth (ft)
3.4
max depth (ft)
21.7
wetted perimeter (ft)
1.9
hydraulic radius (ft)
8.8
width -depth ratio
100.0
W flood prone area (ft)
5.2
entrenchment ratio
1.1
low bank height ratio
Survey Date: 7/2018
Field Crew: Kee Mapping & Surveying
View Downstream
Cross -Section Plots
Hogan Creek Stream Mitigation Project
NCDMS Project No. 94708
Monitoring Year 4 - 2018
Cross -Section 4 -Hogan Creek Reach 2
33+68 Pool
987
x -section area (ft.sq.)
60.4
986
1.6
mean depth (ft)
985
max depth (ft)
62.2
984
1.6
hydraulic radius (ft)
983
0
2
width -depth ratio
i 982
v
981
Ilk
980
979
0 10 20 30 40 50 60 70 80
Width (ft)
—MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull
Bankfull Dimensions
98.9
x -section area (ft.sq.)
60.4
width (ft)
1.6
mean depth (ft)
4.7
max depth (ft)
62.2
wetted perimeter (ft)
1.6
hydraulic radius (ft)
36.9
width -depth ratio
Survey Date: 7/2018
Field Crew: Kee Mapping & Surveying
View Downstream
Cross -Section Plots
Hogan Creek Stream Mitigation Project
NCDMS Project No. 94708
Monitoring Year 4 - 2018
Cross -Section 5 -Hogan Creek Reach 2
34+49 Riffle
987
x -section area (ft.sq.)
23.7
986
985
1.9
mean depth (ft)
984
max depth (ft)
c 983
0
wetted perimeter (ft)
1.7
982
v
981
12.4
width -depth ratio
980
W flood prone area (ft)
4.2
entrenchment ratio
1.2
low bank height ratio
979
0 10 20 30 40 50 60 70 80
Width (ft)
—MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea
Bankfull Dimensions
45.2
x -section area (ft.sq.)
23.7
width (ft)
1.9
mean depth (ft)
2.9
max depth (ft)
26.2
wetted perimeter (ft)
1.7
hydraulic radius (ft)
12.4
width -depth ratio
100.0
W flood prone area (ft)
4.2
entrenchment ratio
1.2
low bank height ratio
Survey Date: 7/2018
Field Crew: Kee Mapping & Surveying
View Downstream
Cross -Section Plots
Hogan Creek Stream Mitigation Project
NCDMS Project No. 94708
Monitoring Year 4 - 2018
Cross -Section 6 -Hogan Creek Reach 2
37+95 Riffle
987
986
x -section area (ft.sq.)
26.1
width (ft)
2.2
mean depth (ft)
985
max depth (ft)
27.8
984
983
2.0
hydraulic radius (ft)
982
width -depth ratio
100.0
c
0
3.8
entrenchment ratio
981
980
low bank height ratio
„°M
979
978
977
0 10 20 30 40 50 60 70 80
Width (ft)
—MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea
Bankfull Dimensions
56.6
x -section area (ft.sq.)
26.1
width (ft)
2.2
mean depth (ft)
4.1
max depth (ft)
27.8
wetted perimeter (ft)
2.0
hydraulic radius (ft)
12.0
width -depth ratio
100.0
W flood prone area (ft)
3.8
entrenchment ratio
1.0
low bank height ratio
Survey Date: 7/2018
Field Crew: Kee Mapping & Surveying
View Downstream
Cross -Section Plots
Hogan Creek Stream Mitigation Project
NCDMS Project No. 94708
Monitoring Year 4 - 2018
Cross -Section 7-UT2
13+25 Riffle
994
4.0
x -section area (ft.sq.)
993
width (ft)
992
mean depth (ft)
991
max depth (ft)
990
0
2
wetted perimeter (ft)
989
v
988
hydraulic radius (ft)
987
width -depth ratio
25.9
W flood prone area (ft)
986
0 10 20 30 40 50 60
Width (ft)
entrenchment ratio
— MYO(6/2015) —MY1 (12/2015) —MY2 (6/2016) —MY3 (6/2017) tMY4 (7/2018) —Bankfull—Floodprone Area
Bankfull Dimensions
4.0
x -section area (ft.sq.)
8.2
width (ft)
0.5
mean depth (ft)
1.0
max depth (ft)
8.5
wetted perimeter (ft)
0.5
hydraulic radius (ft)
17.1
width -depth ratio
25.9
W flood prone area (ft)
3.1
entrenchment ratio
1.0
low bank height ratio
Survey Date: 7/2018
Field Crew: Kee Mapping & Surveying
View Downstream
Cross -Section Plots
Hogan Creek Stream Mitigation Project
NCDMS Project No. 94708
Monitoring Year 4 - 2018
Cross -Section 8-UT2
13+74 Pool
994
x -section area (ft.sq.)
6.7
993
0.7
mean depth (ft)
992
max depth (ft)
7.2
991
0.6
hydraulic radius (ft)
990
0
2
width -depth ratio
989
v
988
987
986
0 10 20 30 40 50 60
Width (ft)
—MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull
Bankfull Dimensions
4.4
x -section area (ft.sq.)
6.7
width (ft)
0.7
mean depth (ft)
1.2
max depth (ft)
7.2
wetted perimeter (ft)
0.6
hydraulic radius (ft)
10.3
width -depth ratio
Survey Date: 7/2018
Field Crew: Kee Mapping & Surveying
View Downstream
Cross -Section Plots
Hogan Creek Stream Mitigation Project
NCDMS Project No. 94708
Monitoring Year 4 - 2018
Cross -Section 9-UT2
14+73 Riffle
992
4.7
x -section area (ft.sq.)
8.1
991
990
0.6
mean depth (ft)
1.1
max depth (ft)
8.4
989
988
0.6
hydraulic radius (ft)
c
0
987
width -depth ratio
17.8
v
986
2.2
entrenchment ratio
985
low bank height ratio
984
0 10 20 30 40 50 60
Width (ft)
—MYO(6/2015)—MY1(12/2015)—MY2(6/2016)—MY3(6/2017) tMY4(7/2018) —Bankfull—FloodproneArea
Bankfull Dimensions
4.7
x -section area (ft.sq.)
8.1
width (ft)
0.6
mean depth (ft)
1.1
max depth (ft)
8.4
wetted perimeter (ft)
0.6
hydraulic radius (ft)
14.1
width -depth ratio
17.8
W flood prone area (ft)
2.2
entrenchment ratio
0.9
low bank height ratio
Survey Date: 7/2018
Field Crew: Kee Mapping & Surveying
View Downstream
Longitudinal Profile Plots
Hogan Creek Mitigation Project
DMS Project No. 92343
Monitoring Year 4 - 2018
Hogan Creek Reach 1 (STA 14+29 - STA 29+61)
996
994
F
♦
_6Z
................
989
992
d
d
c
♦
990
d
988
----------
-------------- --------•
987
a
986
1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200
Station (feet)
-TW MY06/9/2015 -TW MY312/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018 • Structure MY47/9/2018
-----------
991
♦
989
♦
987
a
-----
---•--•-
-----------
--------
♦
Reach Break
oc
_
------ --
985
------------------------------
XS 1
XS 2
983
X53
981
2100 2150 2200 2250 2300 2350 2400 2450 2500 2550 2600 2650 2700 2750 2800 2850 2900 2950 3000 3050 3100
Station (feet)
-TW MY06/9/2015 -TW MY312/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018 9 Structure MY47/9/2018
Longitudinal Profile Plots
Hogan Creek Mitigation Project
DMS Project No. 92343
Monitoring Year 4 - 2018
Hogan Creek Reach 2 (STA 30+11 - STA 40+96)
987
985
983
X54
XS5
_
.,
w
c 981
979
--------------
.-----•--
X56
7
977
975
3000 3050 3100 3150 3200 3250 3300 3350 3400 3450 3500 3550 3600 3650 3700 3750 3800 3850 3900 3950 4000 4050 4100
Station (feet)
-TW MY06/9/2015 -TW MY312/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 tTW MY47/9/2018-------WSF MY47/9/2018 ♦ BKF MY47/9/2018 • Structure MY47/9/2018
Longitudinal Profile Plots
Hogan Creek Mitigation Project
DMS Project No. 92343
Monitoring Year 4 - 2018
UT2 (STA 8+70 - STA 15+45)
992
990
X57 XSS
988
`o
w 986
984
982
1200 1250 1300 1350 1400 1450 1500 1550
Station (feet)
-TW Myo 6/9/2015 -TW MY112/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018
999
997
•
............................ ..
X59
y 995
00
u 993
991
989
850 900 950 1000 1050 1100 1150 1200 1250
Station (feet)
-TW MY06/9/2015 -TW MY312/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 tTW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018 • STR MY47/9/2018
992
990
X57 XSS
988
`o
w 986
984
982
1200 1250 1300 1350 1400 1450 1500 1550
Station (feet)
-TW Myo 6/9/2015 -TW MY112/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018
•
............................ ..
X59
992
990
X57 XSS
988
`o
w 986
984
982
1200 1250 1300 1350 1400 1450 1500 1550
Station (feet)
-TW Myo 6/9/2015 -TW MY112/2/2015 -TW MY210/18/2016 -TW MY36/30/2017 -TW MY47/9/2018 -------WSF MY47/9/2018 ♦ BKF MY47/9/2018
Cross -Section Pebble Count Plots
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Hogan Reach 1, Cross -Section 1
Particle Class
Diameter (mm)
min max
Riffle 100-
Count
Summary
Class Percent
Percentage Cumulative
SILT/CLAY
Silt/Clay
0.000
0.062
42.0
D84 =
0
SPC�O
Very fine
0.062
0.125
0
Fine 0.125 0.250 1 1
1
Medium 0.25 0.50 4 4
5
Coarse 0.5 1.0 4 4
9
Very Coarse 1.0 2.0 4 4
13
J�V
Very Fine
2.0
2.8
13
Very Fine 2.8 4.0 2 2
15
Fine 4.0 5.6 3 3
18
Fine 5.6 8.0 2 2
20
Medium 8.0 11.0 2 2
22
Medium 11.0 16.0 4 4
26
Coarse 16.0 22.6 8 8
34
Coarse 22.6 32 8 8
42
Very Coarse 32 45 10 10
52
Very Coarse 45 64 21 21
73
LQ�
Small
64
90
13
13
86
Small 90 128 9 9
95
Large 128 180 3 3
98
Large 180 256 2 2
100
�p
Small
256
362
60
100
Small 362 512
100
Medium 512 1024
100
Large/Very Large 1024 2048
100
BEDROCK
Bedrock
2048
>2048
50
100
Total
100
100
100
Hogan Reach 1, Cross -Section 1
Pebble Count Particle Distribution
100
90 SiIt/Clay Sand. ravelA.
bble r
80 a roc
0 70
> 60
r
ca
3 50
E
u 40
y 30
v
L
a 20
10
0
0.01 0.1 1 10 100 1000 10000
Particle Class Size (mm)
MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018
Cross -Section 1
Channel materials (mm)
D16 =
4.47
D35 =
23.60
D50 =
42.0
D84 =
85.4
=
P100
128.0
=
256.0
Hogan Reach 1, Cross -Section 1
Pebble Count Particle Distribution
100
90 SiIt/Clay Sand. ravelA.
bble r
80 a roc
0 70
> 60
r
ca
3 50
E
u 40
y 30
v
L
a 20
10
0
0.01 0.1 1 10 100 1000 10000
Particle Class Size (mm)
MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018
Hogan Reach 1, Cross -Section 1
Individual Class Percent
100
90
80
70
a
u
y
a
60
50
m
u
40
m
30
20
E
10
0
ti ti R � Dh o�
Qooti y.Lh o,L� off'
o
,Lw �� titi do �,L�O 3ti �O �,L� y�0 ��o
roti �titi o,Loo��
ti ti
000
Particle Class Size (mm)
■ MYO-06/2015
MYl-12/2015 MY2-06/2016 ■ MY3-06/2017
■ MY4-08/2018
Cross -Section Pebble Count Plots
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Hogan Reach 1, Cross -Section 3
Particle Class
Diameter (mm)
min max
Riffle 100-
Count
Summary
Class Percent
Percentage Cumulative
SILT/CLAY
Silt/Clay
0.000
0.062
9
9
9
SPC�O
Very fine
0.062
0.125
1
1
10
Fine 0.125 0.250 3 3
13
Medium 0.25 0.50 22 22
35
Coarse 0.5 1.0 4 4
39
Very Coarse 1.0 2.0 3 3
42
J�V
Very Fine
2.0
2.8
42
Very Fine 2.8 4.0 1 1
43
Fine 4.0 5.6 5 5
48
Fine 5.6 8.0 3 3
51
Medium 8.0 11.0 6 6
57
Medium 11.0 16.0 12 12
69
Coarse 16.0 22.6 12 12
81
Coarse
22.6
32
5
5
86
Very Coarse 32 45 9 9
95
Very Coarse 45 64 4 4
99
LQ�
Small
64
90
1
1
100
Small 90 128
100
Large 128 180
100
Large 180 256
100
�p
Small
256
362
100
Small 362 512
100
Medium 512 1024
100
Large/Very Large1024 2048
100
BEDROCK
Bedrock
2048
>2048
100
Total
100
100
100
Hogan Reach 1, Cross -Section 3
Pebble Count Particle Distribution
100
90 SiIt/clay and ravel
bble r
80 a roc
0 70
> 60
r
ca
3 50
E
u 40
y 30
v
L
a 20
10
0
0.01 0.1 1 10 100 1000 10000
Particle Class Size (mm)
MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018
Cross -Section 3
Channel materials (mm)
D16 =
0.27
D3S =
0.50
D50 =
7.1
D84 =
27.8
D95 =
45.0
D100 =
90.0
Hogan Reach 1, Cross -Section 3
Pebble Count Particle Distribution
100
90 SiIt/clay and ravel
bble r
80 a roc
0 70
> 60
r
ca
3 50
E
u 40
y 30
v
L
a 20
10
0
0.01 0.1 1 10 100 1000 10000
Particle Class Size (mm)
MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018
Hogan Reach 1, Cross -Section 3
Individual Class Percent
100
90
80
70
a
u
y
a
60
50
m
u
40
m
30
20
E
10
01 0 16
0
p
ti ti �� o°
Doti yo tic o`'
o� o
tib' �� titi do ��� 3ti 00 �y� yoo ��o
roti �titi otia o��
ti ti
000
Particle Class Size (mm)
■ MYO-06/2015
MYl-12/2015 MY2-06/2016 ■ MY3-06/2017
■ MY4-08/2018
Cross -Section Pebble Count Plots
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Hogan Reach 2, Cross -Section 5
Particle Class
Diameter (mm)
min max
Riffle 100-
Count
Summary
Class Percent
Percentage Cumulative
SILT/CLAY
Silt/Clay
0.000
0.062
29.0
D84 =
0
SPC�O
Very fine
0.062
0.125
0
Fine 0.125 0.250
0
Medium 0.25 0.50 1 1
1
Coarse 0.5 1.0 1 1
2
Very Coarse 1.0 2.0 3 3
5
J�V
Very Fine
2.0
2.8
1
1
6
Very Fine 2.8 4.0 1 1
7
Fine 4.0 5.6 3 3
10
Fine 5.6 8.0 1 1
11
Medium 8.0 11.0 2 2
13
Medium 11.0 16.0 10 10
23
Coarse 16.0 22.6 17 17
40
Coarse 22.6 32 14 14
54
Very Coarse 32 45 23 23
77
Very Coarse 45 64 14 14
91
LQ�
Small
64
90
7
7
98
Small 90 128 1 1
99
Large 128 180
99
Large 180 256 1 1
100
�p
Small
256
362
60
100
Small 362 512
100
Medium 512 1024
100
Large/Very Large 1024 2048
100
BEDROCK
Bedrock
2048
>2048
50
100
Total
100
100
100
Hogan Reach 2, Cross -Section 5
Pebble Count Particle Distribution
100
90 SiIt/clay Sand ravel
rble r
gp 7r
0 70
> 60
r
ca
3 50
E
U= 40
y 30
v
L
a 20
10
0 _t7_414
0.01 0.1 1 10 100 1000 10000
Particle Class Size (mm)
--I MYO-06/2015 MY1-12/2015 MY2-06/2016 --I MY3-06/2017 MY4-08/2018
Cross -Section 5
Channel materials (mm)
D16 =
12.31
D35 =
20.42
D50 =
29.0
D84 =
53.7
=
P100
77.8
=
256.0
Hogan Reach 2, Cross -Section 5
Pebble Count Particle Distribution
100
90 SiIt/clay Sand ravel
rble r
gp 7r
0 70
> 60
r
ca
3 50
E
U= 40
y 30
v
L
a 20
10
0 _t7_414
0.01 0.1 1 10 100 1000 10000
Particle Class Size (mm)
--I MYO-06/2015 MY1-12/2015 MY2-06/2016 --I MY3-06/2017 MY4-08/2018
Hogan Reach 2, Cross -Section 5
Individual Class Percent
100
90
80
70
a
u
y
a
60
50
m
u
40
m
30
20
ALI
E
10
L
_L1
0
1.1
QDoti
o
ti ti
Particle Class Size (mm)
■ MYO-06/2015
MYl-12/2015 MY2-06/2016 ■ MY3-06/2017
■ MY4-08/2018
Cross -Section Pebble Count Plots
Hogan Creek Stream Mitigation Project
DMS Project No. 94708
Monitoring Year 4 - 2018
Hogan Reach 2, Cross -Section 6
Particle Class
Diameter (mm)
min max
Riffle 100-
Count
Summary
Class Percent
Percentage Cumulative
SILT/CLAY
Silt/Clay
0.000
0.062
56.1
D84 =
0
SPO
Very fine
0.062
0.125
0
Fine 0.125 0.250
0
Medium 0.25 0.50
0
Coarse 0.5 1.0
0
Very Coarse 1.0 2.0 4 4
4
J�V
Very Fine
2.0
2.8
1
1
5
Very Fine 2.8 4.0 1 1
6
Fine 4.0 5.6 4 4
10
Fine 5.6 1 8.0 3 3
13
Medium 8.0 11.0
13
Medium 11.0 16.0 5 5
18
Coarse 16.0 22.6 8 8
26
Coarse 22.6 32 7 7
33
Very Coarse 32 45 7 7
40
Very Coarse 45 64 16 16
56
LQ�
Small
64
90
13
13
69
Small 90 128 6 6
75
Large 128 1 180 11 11
86
Large 180 256 7 7
93
�p
Small
256
362
6
6
99
Small 362 512 1 1
100
Medium 512 1024
100
Large/Very Large 1024 2048
100
BEDROCK
Bedrock
2048
>2048
50
100
Total
100
100
100
Hogan Reach 2, Cross -Section 6
Pebble Count Particle Distribution
100
90 SiIt/Clay Sand ravel
bbl r
gp 777
0 70
> 60
r
ca
3 50
E
u 40
y 30
v
L
COL' 20 or
10
0
0.01 0.1 1 10 100 1000 10000
Particle Class Size (mm)
MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018
Cross -Section 6
Channel materials (mm)
D16 =
13.77
D35 =
35.27
D50 =
56.1
D84 =
169.2
=
P100
287.3
=
512.0
Hogan Reach 2, Cross -Section 6
Pebble Count Particle Distribution
100
90 SiIt/Clay Sand ravel
bbl r
gp 777
0 70
> 60
r
ca
3 50
E
u 40
y 30
v
L
COL' 20 or
10
0
0.01 0.1 1 10 100 1000 10000
Particle Class Size (mm)
MYO-06/2015 MY1-12/2015 MY2-06/2016 --0-- MY3-06/2017 MY4-08/2018
Hogan Reach 2, Cross -Section 6
Individual Class Percent
100
90
80
70
a
u
y
a
60
50
m
u
40
m
30
20
E
10
W1,111
A I-
d1f
I
k
0
ti ti �� o°
Doti yp otic o`'
0 o
tib' �� titi do ��� 3ti oo �y� yoo ��o
roti �titi otic o��
, ti
000
Particle Class Size (mm)
■ MYO-06/2015
MYl-12/2015 MY2-06/2016 ■ MY3-06/2017
■ MY4-08/2018
APPENDIX E. Hydrology Summary Data and Plots
Table 14. Verification of Bankfull Events
Hogan Creek Stream Mitigation Project
DMS Project No.94708
Monitoring Year 4 - 2018
Reach
Monitoring Year
m"IDate of Data Collection
Date of Occurrence
Method
Hogan Creek Reach 2
MY1*
10/26/2015
10/2/2015-10/3/2015
Crest Gage
MY2 4/12/2016 4/1/2016-4/12/2016
Wrack Lines/Sediment Deposition
MY3 7/5/2017 5/22/2017-5/23/2017
Wrack Lines
MY4 4/19/2018 —4/16/2018
Crest Gage/Wrack Lines
UT2
MY1
10/26/2015
10/2/2015-10/3/2015
Crest Gage
MY2 8/2/2016 —6/16/2016
Crest Gage
MY2 4/12/2016 4/1/2016-4/12/2016
Wrack Lines/Sediment Deposition
MY3 7/5/2017 5/22/2017-5/23/2017
Crest Gage/Wrack Lines
MY4 4/19/2018 4/16/2018
Crest Gage/Wrack Lines
*Crest Gage was damaged from bankfull event
Monthly Rainfall Data
Hogan Creek Stream Mitigation Project
DMS Project No.94708
Monitoring Year 4 - 2018
1 2018 rainfall collected from NC CRONOS Station Name: Dobson 2.3 SE, NC (NCSU, 2018)
Z 30th and 70th percentile rainfall data collected from weather station ELKIN, NC (USDA, 2018)
Hogan Creek 30-70 Percentile Graph for Rainfall in 2018 Surry County, NC
12.00
10.00
8.00
0
M
M
Q
6.00
U
G1
i
a
4.00
2.00-4
0.00
Jan -18 Feb -18 Mar -18 Apr -18 May -18 Jun -18 Jul -18 Aug -18 Sep -18 Oct -18
Dobson 2.3 SE, NC Date
70th percentile
30th percentile
1 2018 rainfall collected from NC CRONOS Station Name: Dobson 2.3 SE, NC (NCSU, 2018)
Z 30th and 70th percentile rainfall data collected from weather station ELKIN, NC (USDA, 2018)