Hominy Swamp Stream Restoration
Hominy Swamp Stream Restoration EEP Project No: 180
2006 Annual Monitoring Report 5th Year of 5-year Monitoring Plan
Submitted to: NCDENR/Ecosystem Enhancement Program 1619 Mail Service Center Raleigh, NC 27699-1619
December 2006
TABLE OF CONTENTS
Prepared by: Rummel, Klepper and Kahl, LLP Consulting Engineers 900 Ridgefield Dr., Suite 350 Raleigh, NC 27609 Design Firm: KCI Associates of North Carolina, P.A. 1.0 Executive Summary/Project Abstract .
.
2.0 Project Background . . . . . 2.1 Location and Setting . . . 2.2 Mitigation Structure and Objectives 2.3 Project History and Background . 2.4 Monitoring Plan View . . .
.
.
.
.
.
.
.
.
1
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
1 1 1 2 3
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
7 7 7 7 7 8 8 8 8 8 9 9 9 9 10 10 10 10
3.0 Project Condition and Monitoring Results . . 3.1 Vegetation Assessment . . . . 3.1.1 Soil Data . . . . . . 3.1.2 Vegetative Problem Areas . . 3.1.3 Vegetative Problem Area Plan View 3.1.4 Stem Counts . . . . . 3.1.5 Vegetation Plot Photos . . . 3.2 Stream Assessment . . . . . 3.2.1 Procedural Items . . . . 3.2.1.a Morphometric Criteria . . 3.2.1.b Hydrologic Criteria . . 3.2.1.c Bank Stability Assessment . 3.2.2 Problem Areas Plan View (Stream) 3.2.3 Problem Areas Table . . . 3.2.4 Numbered Issue Photos Section . 3.2.5 Fixed Station Photos . . . 3.2.6 Stability Assessment Table . . 3.2.7 Quantitative Measures Tables .
TABLES Table 1. Table II. Table III. Table IV. Table V. Table VI. Table VII. Table VIII. Table IX. Table X. Table XI. Table XII. Table XIII.
Project Structure and Objectives Table . . . . Project Activity and Reporting History . . . . Project Contact Table . . . . . . . Project Background Table . . . . . . Preliminary Soil Data . . . . . . . Vegetative Problem Areas . . . . . . Stem counts for each species arranged by plot . . Verification of Bankfull Events . . . . . BEHI and Sediment Export Estimates . . . . Stream Problem Areas . . . . . . . Categorical Stream Feature Visual Stability Assessment Baseline Morphology and Hydraulic Summary . . Morphology and Hydraulic Monitoring Summary .
. . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . . . . .
. .
.
.
. . . . . . . . . . . . .
1 2 2 3 7 7 8 9 9 10 10 11 12
FIGURES Figure 1 Project Site Map. . . Figure 2 Aerial Watershed Photo.
. .
. .
. .
. .
. .
. .
. .
APPENDIX A – VEGETATION RAW DATA A.1 Vegetative Problem Area Plan View A.2 Vegetation Problem Areas Photos A.3 Vegetation Monitoring Plot Photos APPENDIX B – GEOMORPHOLOGIC RAW DATA B.1 B.2 B.3 B.4
Problem Areas Plan View (Stream) Stream Problem Area Photos Stream Cross Section Photos Cross section Plots and Raw Data Tables Exhibit cross section B.5 Longitudinal Plots and Raw Data Tables Exhibit Longitudinal Profile Exhibit Raw Data Tables for Slope B.6 Pebble Count Plots and Raw Data Tables B.7 Table B.1. Categorical Stream Feature Visual Stability Assessment APPENDIX C – Additional Site Photos C.1 Beaver Infestation Photos
4 5
1.0
Executive Summary/Project Abstract
Hominy Swamp Creek was restored through the North Carolina Wetlands Restoration Program (NCWRP). The objectives of the project are to: 1.) Establish a stable dimension, pattern and profile on 2,232 feet of Hominy Swamp Creek 2.) Improve habitat within Hominy Swamp Creek 3.) Establish a riparian buffer along Hominy Swamp Creek 4.) Incorporate this project into a watershed wide management plan This is the 5th year of the 5-year monitoring plan for Hominy Swamp Creek. Overall, while the majority of the stream is functioning well and holding grade, the stream has areas of concern and areas of immediate need. Table X shows a summary of identified problem areas within the project reach. Channel dimension and pattern are similar to as-built conditions with the exceptions of the noted areas of bank slumping. The channel profile is void of defined bed features and is dominated by runs and pools. Placed structures are holding grade and functioning well. However, beavers have infested the project as of December 2006. Some of the newly planted vegetation within the vegetation plots and within the restored riparian buffer has been destroyed. Immediate attention is recommended to alleviate the current and potential future problems. Photographs of the recent beaver activity are located in Appendix C. 2.0
Project Background 2.1
Location and Setting
The project is located within the city limits of Wilson, North Carolina. From Raleigh, take US 64 BYP East to US 64 then US 264 (Wilson exit). Proceed east on US 264 to Exit 36B, US 264 ALT East (Raleigh Road). Continue into Wilson on Raleigh Road until you reach Ripley Road. Turn left (north) on Ripley Road and the site is immediately on the east/right side of the road. Refer to Figure 1 for project location. 2.2
Mitigation Structure and Objectives
The restoration of this portion of Hominy Swamp Creek, located within the Wilson City Recreational Park, was conducted to correct identified system deficiencies including severe bank erosion, channel widening, and the loss of aquatic habitat resulting from stream channelization, the loss of riparian vegetation, and watershed development. The goal of the project was to develop a stable stream channel with reduced bank erosion, efficient sediment transport, enhanced warm water fisheries, and improved overall stream habitat and site aesthetics. Construction of the project was completed in September 2001.
Table I. Project Structure and Objectives Table Project No. 180 (Hominy Swamp Creek) Segment Reach ID Mitigation Type Approach Linear Feet/Acreage Hominy Swamp Creek Restoration Priority 1 2,232 feet
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
1
2.3
Project History and Background
Tables II, III, and IV provide the project history, contact information and background data. Table II. Project Activity and Reporting History Project No. 180 (Hominy Swamp Creek) Calendar Year of Completion or Planned Actual Completion Activity or Report Completion Date Restoration Plan 2001 Mitigation Plan January 2003 Construction September 2001 As-Built Report June 2002 Initial – Year 1 January 2003 Monitoring Year 2 monitoring December 2003 Year 3 Monitoring December 2004 Year 4 Monitoring December 2005 (draft) March 2006 (final) Year 5 Monitoring December 2006 (draft) January 2007 (final) Year 5+ Monitoring TBD
Table III. Project Contact Table Project No. 180 (Hominy Swamp Creek) KCI Associates of North Carolina, P.A. Designer Landmark Center II, Suite 200 4601 Six Forks Road Raleigh, NC 27609 Not provided Construction Contractor Not provided Planting Contractor Not provided Seeding Contractor Seed Mix Sources Not provided Nursery Stock Suppliers Not provided Rummel, Klepper & Kahl, LLP Monitoring Performers (Years 4 & 5) 900 Ridgefield Drive, Suite 350 Raleigh, NC 27609 Stream Monitoring POC Howard Woodall, P.E. 919-878-9560 Vegetation Monitoring POC Howard Woodall, P.E. 919-878-9560
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
2
Table IV. Project Background Table Project No. 180 (Hominy Swamp Creek) Wilson County, North Carolina Project County 5.4 square miles Drainage Area Not provided Drainage impervious cover estimate (%) 3 Stream Order Coastal Plain Physiographic Region Rolling Coastal Plain Ecoregion E5 Rosgen Classification of As-Built PSS1Ad Cowardin Classification Bibb Loam (Bb) Dominant soil types Hominy Swamp Creek Reference site ID 3020203020040 USGS HUC for Project and Reference 03-04-07 Neuse River Basin NCDWQ Sub-basin for Project and Reference C; Sw, NSW NCDWQ Classification for Project and Reference Yes – From its source to Conentnea Creek Any portion of any project segment 303d listed? Any portion of any project segment upstream of a 303d listed segment? Impaired biological integrity; Stressors not Reasons for 303d listing or stressor identified (Potential sources: Urban Runoff/Storm Sewers) 0 % of project easement fenced
2.4
Monitoring Plan View
See following page for Monitoring Plan View.
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
3
$ d " !
?
A
Elm City
K ¿
s ?
esex
Bailey Sims
K ¿ $ d " !
4
Sharpsburg
K ´
Pinetops
d ? Macclesfield
? d A W I L S O N C o u n t yK ¿ d ? K ´ B A K K ´ $ d " ! Wilson
A Fountain Saratoga
Lucama
Black Creek
222
Stantonsburg
Kenly
K ¿ K ¿ ?
Walstonburg
Hominy Swamp Stream Resoration Site
" NC Ecosystem Enhancement Program Produced by: RK&K Engineers
Hominy Swamp Stream Restoration EEP Project No: 180
Project Site Map 0
1,000
2,000
4,000
6,000
8,000 Feet
1 inch equals 2,000 feet
Monitoring Year 5 of 5 December 2006
Figure 1
Source: USGS 7.5 Minute Quadrangles, Wilson & Winstead Crossroads, NC
4
Watershed Boundary
" Digital Elevation Model
Project Location
"
NC Ecosystem Enhancement Program Produced by: RK&K Engineers
Hominy Swamp Stream Restoration EEP Project No: 180 0
1,000 2,000 3,000 4,000 5,000 Feet Miles
0
1
Aerial Watershed Photo Monitoring Year 5 of 5 December 2006
Figure 2
3.0
Project Condition and Monitoring Results 3.1
Vegetation Assessment
The vegetation monitoring for 2005 yielded no monitoring plots meeting minimum success requirements. EEP replanted the Hominy Swamp Stream restoration site for 2006 (monitoring year 5). Based upon the latest EEP vegetation monitoring guidelines, six vegetation monitoring plots were monitored for vegetation success. The plots were installed as 10 meter X 10 meter plots on or near the previous vegetation monitoring plots. The results of the stem counts yielded a site average of 405 stems per acre which exceeds the minimum success requirement of 260 stems per acre after vegetation monitoring year 5. 3.1.1
Soil Data
The Bibb series consists of very deep, poorly drained, moderately permeable soils that formed in stratified loamy and sandy alluvium. These soils are on flood plains of streams in the Coastal Plain. They are commonly flooded and water runs off the surface very slowly. Slopes range from 0 to 2 percent. The vegetation found on Bibb series is usually dominated by native woodland species consisting of sweetgum, loblolly pine, red maple, water oak, willow oak, green ash, baldcypress, swamp tupelo, and black willow.
Series Bibb Loam (Bb) 3.1.2
Feature/Issue Plot 2 3.1.3
Table V. Preliminary Soil Data Project No. 180 (Hominy Swamp Creek) Max % Clay on Depth K Surface (in.) 80 2 – 18 .28 - .37
T
OM %
5
.5 - 2
Vegetative Problem Areas Table VI. Vegetative Problem Areas Project No. 180 (Hominy Swamp Creek) Station #/Range Probable Cause 15+00L Dead stems
Photo # Appendix A.2 P1
Vegetative Problem Area Plan View
Refer to Appendix A.1 for Vegetative Problem Area Plan View.
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
5
3.1.4
Stem Counts
The results of the stem counts yielded an average of 405 trees per acre which exceeds the minimum success criteria of 260 trees per acre after year 5 monitoring. Data for the number and type of species initially planted in each vegetation plot to acquire initial totals is not available for the new plots. To determine if the surviving stems met the minimum success criteria, the density of the surviving stem counts in the plots was converted to stems per acre.
Species
Table VII. Stem counts for each species arranged by plot Project No. 180 (Hominy Swamp Creek) Initial Totals Plots Year 5 Totals 1
2
3
4
5
Survival %
6
Trees Quercus nigra Quercus lyrata Quercus laurifolia Quercus phellos Quercus pagoda Quercus michauxii Quercus alba Taxodium distichum Carya ovata Ilex verticillata Nyssa sylvatica Fraxinus pennsylvanica Cornus florida Viburnum dentatum Amelanchier canadensis Cercis canadensis Clethra alnifolia Itea virginica Caphlanthus occidentalis Salix nigra
3.1.5
2 2 1 2
5 2 1
2
3
2
2
1 1 1
2 2 2
2 2 1
2
2 3
2 5
3 1
1 2
1
0 2 11 10 11 0 0 0 0 0 6 2 3 0 0
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 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 N/A N/A
4 5 5 1
N/A N/A N/A N/A N/A
N/A N/A N/A N/A N/A
Vegetation Plot Photos
Photos are located in Appendix A. 3.2
Stream Assessment 3.2.1
Procedural Items 3.2.1.a Morphometric Criteria
Dimension – Previously established cross-sections were surveyed for comparison to past measurements. Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
6
Profile – The longitudinal profile of the restored stream was also surveyed for comparison to the previous monitoring survey. Since the total restored length is less than 3000 feet, the entire reach was surveyed. 3.2.1.b Hydrologic Criteria Two bankfull events must be recorded during the 5 year monitoring period in order to meet hydrologic criteria. Table VIII. Verification of Bankfull Events Project No. 180 (Hominy Swamp Creek) 2002 (MY-1) : January 5, January 22, March 2 2004 (MY-3) : Unspecified date (see 2004 report Sec. 2.1.1 “Results and Discussions” on pg. 7) 3.2.1.c Bank Stability Assessment
Post Con.
ft
%
ft
%
ft
%
ft
%
ft
Sediment Export
Very low
Low
Moderate
High
Very High
Extreme
Linear Footage or Acreage
Segment/ Reach
Time Point
Table IX. BEHI and Sediment Export Estimates Project No. 180 (Hominy Swamp Creek)
%
ft
%
Ton /y
Reach I
2,232 lf
50
2.2
28
1.2
25 1.1
60
2.7
2069 92.8
57
Project Total
2,232 lf
50
2.2
28
1.2
25 1.1
60
2.7
2069 92.8
57
3.2.2 Problem Areas Plan View (Stream) – Refer to B.1 for Problem Areas Plan View. 3.2.3 Problem Areas Table – Table X below provides categorical feature issues by station, the suspected cause, and denotes the number of a representative photo of the condition (Appendix B).
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
7
Feature/Issue Aggradation/ Formation
Bar
Bank Scour
Table X. Stream Problem Areas Project No. 180 (Hominy Swamp Creek) Station Suspected Cause Numbers Upstream bank scour and watershed disturbance Upstream bank scour and watershed disturbance Upstream bank scour and watershed disturbance Upstream bank scour and watershed disturbance Upstream bank scour and watershed disturbance Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass
01+65 – 01+85 03+70 - 03+90 04+10 - 04+40 05+15 - 05+55 09+80 - 10+15 1+00 – 1+50 02+65 – 02+85 06+00 – 06+30 15+15 – 15+45 15+60 – 15+90 21+50 – 21+65 21+70 – 22+00
Feature A. Riffles B. Pools C. Thalweg D. Meanders E. Bed General F. Vanes/J Hooks etc. G. Wads and Boulders
3.2.4
Numbered issue photos section – Refer to B.2 for photos.
3.2.5
Fixed station photos – Refer to B.3 for photos.
3.2.6
Stability Assessment Table
Photo number P74 P65, P67 P62 P58, P59 P40, P42 P75, P76 P70, P72 P54 P25 P23 P3 P2
Table XI. Categorical Stream Feature Visual Stability Assessment Project No. 180 (Hominy Swamp Creek) Initial MY-01 MY-02 MY-03 MY-04 MY-05 100% NA 100% 100% 100%
NA NA NA NA NA
NA NA NA NA NA
NA NA NA NA NA
33% NA 60% 67% 96%
33% NA 60% 67% 96%
100%
NA
NA
NA
90%
90%
100%
NA
NA
NA
93%
93%
3.2.7 Quantitative Measures Tables – Refer to the following pages for Table XII (Baseline Morphology and Hydraulic Summary) and Table XIII (Morphology and Hydraulic Monitoring Summary).
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
8
Min
Max
Med
Min
n/a n/a n/a n/a
BF Cross
BF Mean
BF Max
Width/Depth
Entrenchmen
Meander
n/a 26 n/a
Riffle slope
Pool length
Pool spacing
n/a
d84 (mm)
1.1
Sinuosity
n/a
n/a
VFsand
69.56
n/a
0.0018
n/a
7.7
n/a
n/a
92
>2.2
7.4
2.11
1.61
19.2
45
11.9
Med
n/a
n/a
91
35
n/a
n/a
n/a
182
46.5
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Min
n/a
E5
n/a
0.0014
1.2
2,232
1,850
n/a
n/a
127.5
49
n/a
n/a
n/a
255
62.6
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Max
Design
n/a
0.25
n/a
n/a
0.0015
n/a
4.2
n/a
n/a
85
>5
7.4
4.3
2.73
55
>100
20.2
Med
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
12.1
8.8
3.6
2.46
53.4
n/a
21.7
Min
n/a
n/a
n/a
n/a
2,232
1,850
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
13.9
9.9
3.8
2.51
62.3
n/a
24.8
Max
As-Built
n/a
n/a
E5
n/a
0.0015
1.41
n/a
n/a
n/a
n/a
n/a
29
n/a
n/a
n/a
150
36.9
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Max
Extent of BF
n/a
n/a
n/a
20
n/a
n/a
n/a
107
27.35
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Min
n/a
E5 (Modified)
Rosgen
n/a
n/a
167
n/a
0.00016
n/a
3.6
n/a
n/a
92
>4
9.3
4.68
2.74
70
>100
25.5
Med
Project Reference Stream
Number of
n/a
BF slope
0.0015
n/a
Water
n/a
Valley
n/a
n/a
n/a
38
n/a
n/a
n/a
170
Channel
Additional
n/a
d50 (mm)
Substrate
n/a
Riffle length
Profile
n/a
Meander
135
43 114
Radius of
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Max
Pre-Existing Condition
Channel
Pattern
Hydraulic
Wetted
n/a n/a
Floodprone
n/a
Med
Regional Curve Interval
BF Width
Max
USGS Gauge Data
Dimension Min
Parameter
Table XII. Baseline Morphology and Hydraulic Summary Project No. 180 (Hominy Swamp Creek)
n/a
0.26
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
13
9.4
3.7
2.49
57.9
>300
23.3
Med
MY1
0.58
8.79
3.8
2.5
53.1
21.6
Min
0.63
0.2
13.85
>300
30 64
Pool length (ft)
178
73
53
3.2
1.5
15
76 227
69
Max
33
Pool spacing (ft)
Riffle slope (ft/ft)
Riffle length (ft)
Profile
0.67
0.26
4.8
3.2
59.8
19
107
52
23
2.1
155
56
46
Med
MY-02 (2003)
0.49
0.17
4.2
3
53.9
18.3
115
Radius of Curvature (ft) Meander Wavelength (ft) Meander Width ratio
1.5
0.51
8.0
4.8
3
73
24.1
32
1.6
1.55
6.4
4.6
3.4
73.9
21.7
MY5
Channel Beltwidth (ft)
Med
Max
1.88
Pattern
Min
0.29
0.58
MY-01 (2002)
2
4.9
3.1
52.7
16.8
MY4
Parameter
0.54
d50 (mm)
9.9
12.08
Width/Depth Ratio
Entrenchment Ratio
d84 (mm)
3.6
BF Max Depth (ft)
Substrate
3.5
6.8
87.2
2.5
24.6
62.3
25
Cross Section 1 Riffle MY2 MY3
BF Cross Sectional Area (ft2) BF Mean Depth (ft)
Floodprone Width (ft) >300
BF Width (ft)
Parameter Dimension
1.8
1.64
8.2
4.9
2.7
60.7
22.1 n/a
1.9
0.63
8.0 n/a
4.1
2.7
58.8
21.7
45
32
16
1.8
115
33
32
Min
13.65
0.22
6
2.4
76.3
31.8
165
115
41
3.9
227
76
69
Max
MY4
108
53
28
2.6
155
56
46
Med
17.73 n/a
1.88 n/a
4.9
2
54.3
27.7
MY-03 (2004)
5.88
0.26
5.5
2
64.9
33.1
Table XIII. Morphology and Hydraulic Monitoring Summary Project No. 180 (Hominy Swamp Creek) Cross Section 2 Cross Section 3 Riffle Pool MY1 MY2 MY3 MY4 MY5 MY1 MY2 MY3
4.8
2.6
61.8
24
n/a
n/a
MY5
4.2
2.8
55.5
19.5
n/a
n/a
MY1
1.4
115
33
32
Min
3.74
0.17
6
3.8
88.3
23.5
0.62
0.22
6.8
4
107.5
26.8
0.75 n/a
0.27 n/a
7.2
4.6
113.8
24.9
3.1
227
76
69
Max
2.1
155
56
46
Med
25.4
7.3
4.7
119.5
MY-04&5 (2005&2006)
MY2
Cross Section 4 Pool MY3 MY4
n/a
n/a
MY5
6.7
4.6
109
23.8
APPENDIX A – VEGETATION RAW DATA
A.1
VEGETATIVE PROBLEM AREA PLAN VIEW
4 0+ 00
00 1+ 2+00
00 3+
4
5+00
4+00
8+00
7+00
6+00
5
0 9+0
10+00
00 11+
3 0 +0 12
13+00 14 +0 0
15+00
2 16+0 0
0 +0 17
6
00 18+
00 19+ 0 +0 20
1
Legend Vegetation Monitoring 00 21+
Stem Count >= 260 Stem Count < 260 Vegetation Boundary
22+00
Edge of Water (As-built) Thaweg (As-built)
NC Ecosystem Enhancement Program Produced by: RK&K Engineers
Hominy Swamp Stream Restoration EEP Project No: 180
Vegetation Problem Area Plan View Monitoring Year 5 of 5 December 2006
Appendix A.1
0
50 100
200
300
400
500 Feet
A.2
VEGETATION PROBLEM AREAS PHOTOS
Hominy Swamp Vegetation Problem Area Photos Vegetation Monitoring Plot 2
A.3
VEGETATION MONITORING PLOT PHOTOS
Hominy Swamp Vegetation Monitoring Plot Photos Vegetation Monitoring Plot 1
Vegetation Monitoring Plot 2.
Vegetation Monitoring Plot 3.
Vegetation Monitoring Plot 4.
Vegetation Monitoring Plot 5.
Vegetation Monitoring Plot 6.
APPENDIX B – GEOMORPHOLOGIC RAW DATA
B.1
PROBLEM AREAS PLAN VIEW
P76 - Left Bank Erosion
P75 - Left Bank Erosion
0+ 0
P72 - Left Bank Erosion
0
P67 - Aggradation 0 1+
P74 - Aggradation
0 2+00
P62 - Aggradation
0 3+
4
0
P70 - Left Bank Erosion
4+00
P65 - Aggradation
5+00
P59 - Aggradation
6+00
5 P54 Left Bank Erosion
8+00
7+00
P58 - Aggradation
Legend
P42 - Aggradation
Feature Issues Aggradation - Concern
0 9+
Aggradation - High Concern
0
Erosion - Concern Erosion - High Concern
Vegetation Monitoring Stem Count >= 260
P40 - Aggradation
Stem Count < 260
10+00
Vegetation Boundary Edge of Water (As-built) Thalweg (As-built) PAPV_matchline
NC Ecosystem Enhancement Program Produced by: RK&K Engineers
00 11+
Hominy Swamp Stream Restoration EEP Project No: 180
Problem Area Plan View Appendix B.1
50
100
200
Feet
tc
2
3 00
January 2007
0
Ma
o
+ 12
(Sheet 1 of 2) Monitoring Year 5 of 5
t ne i l h
eet Sh
SHEET 1
00 11+
Ma
tc
t ne hli
o
eet Sh
1
3 + 12 00
13+00 00
15+00
14 +
P23 - Right Bank Erosion
2 16+0 0
P25 - Left Bank Erosion
+ 17 00
6
18+ 00
00 19+
P3 - Right Bank Erosion
+ 20
1
00
00 21+
P2 - Right Bank Erosion 22+00
Legend Feature Issues Aggradation - Concern Aggradation - High Concern Erosion - Concern Erosion - High Concern
Vegetation Monitoring Stem Count >= 260 Stem Count < 260 Vegetation Boundary Edge of Water (As-built) Thalweg (As-built) PAPV_matchline
NC Ecosystem Enhancement Program Produced by: RK&K Engineers
Hominy Swamp Stream Restoration EEP Project No: 180
Problem Area Plan View (Sheet 2 of 2) Monitoring Year 5 of 5 January 2007
Appendix B.1
0
50
100
200 Feet
SHEET 2
B.2
STREAM PROBLEM AREAS PHOTOS
Stream Pictures Taken September 17, 2006 all facing upstream P40
P42
P58
P59
P62
P65
P67
P74
Erosion Pictures P2 – Right Bank Erosion
P3 – Right Bank Erosion
P5 – Left Bank Erosion
P23 – Right Bank Erosion
P25 – Left Bank Erosion
P54 – Left Bank Erosion
P70 – Left Bank Erosion
P72 – Left Bank Erosion
P75 – Left Bank Erosion
P76 – Left Bank Erosion
B.3
STREAM CROSS SECTION PHOTOS
Hominy Swamp Cross-section Photos
P69. Station 6+30. Cross-section 1.
P37. Station 14+10. Cross-section 3.
P41. Station 13+40. Cross-section 2.
P6. Station 19+90. Cross-section 4,
B.4
CROSS SECTION PLOTS AND RAW DATA TABLES
Hominy Swamp Creek #1 Riffle 4/19/06 Cook, Stafford
94
96
98
100
102
104
106
0
10
2004 2004 Survey Elevation Notes -2.22 106.52 0 106.4 15.04 106.06 29.3 103.95 31.92 103.14 34.12 98.68 38.15 99.23 39.31 99.76 43.25 99.73 46.13 101.85 47.72 103.82 49.53 104.16 51.77 103.56 55.23 104.18 BKF 77.16 104.99 94.4 105.27 94.94 105.01
108
Station
Cross Section Feature Date Crew
Elevation (feet - arbitrary)
20
2002 2002 Survey Elevation Notes 106.4 106.29 106.09 105.42 104.43 BKF 103.23 102.42 101.21 100.8 99.94 99.93 99.85 99.68 99.52 99.66 99.99 100.49 100.84 101.32 102.73 103.16 103.57 BKF 104.38 105.06
2004 Survey
Station 0 10 15 20 23 28 30 32 33.2 33.5 36 39 42.8 45 46.3 48 48.3 49.3 49.5 51.7 53 60 70 90 BKF
BKF
Notes
Station 7.2 16.68 22.41 29.79 33.07 33.33 35.12 38.02 41.5 43.72 45.33 47.22 49.5 51.47 86.19
2005 2005 Survey Elevation 106.34 106.00 104.54 103.71 99.77 100.24 99.36 99.31 99.16 99.44 99.84 101.04 101.07 103.71 105.11 BKF
Notes
Station 0.0 15.7 22.49 27.42 30.93 32.95 33.97 34.59 44.03 47.4 48.12 49.83 50.86 51.47 53.29 73.98
60 2005 Survey
Distance (feet)
50 2003 Survey
40
70
BKF
BKF
Notes
2006 Survey
2006 2006 Survey Elevation 106.299 106.117 104.51 103.88 103.34 102.39 99.97 99.88 99.11 99.89 101.28 101.44 103.07 103.87 104.05 104.51
Bankfull Elev. (approx.)
Cross-Section #1 - Riffle Hominy Swamp Creek
2003 2003 Survey Elevation 106.52 105.79 105.14 104.65 104.05 102.58 99.64 98.91 97.99 96.9 96.38 96.41 96.65 97.23 98.33 99.88 102.65 102.78 103.7 105.02 105.01 105.01 105.04 105.07
2002 Survey
30
Station 0 12.4 18.9 22.55 25.31 27.88 30.03 31 32.24 33.47 35.45 36.15 37.39 39.08 42.9 44.3 47.0 47.1 59.1 79.2 89.3 89.7 89.8 97.4
80
Area Width Mean Depth Max Depth
90
2002 62.3 25.0 2.5 3.6
2003 87.2 24.6 3.5 6.8
100
2004 52.7 16.8 3.1 4.9
Photo of Cross-Section #1 - Looking Downstream
Cross-Section #1 location was moved in 2003
2005 73.9 21.7 3.4 4.6
2006 73.0 24.1 3.0 4.8
96.0
97.0
98.0
99.0
100.0
101.0
102.0
103.0
104.0
0.0
10.0
BKF
Notes
Hominy Swamp Creek #2 Riffle 4/19/06 Cook, Stafford
2004 2004 Survey Elevation 104.3 104.3 103.7 102.6 103.0 102.8 100.2 98.2 97.4 97.5 98.4 99.2 101.0 101.5 102.8 103.9 104.4 104.5
105.0
Station 0.0 10.7 22.8 28.3 30.1 32.6 34.2 36.8 41.2 43.2 45.9 47.5 48.1 51.5 57.9 68.4 81.8 81.8
Project Name Cross Section Feature Date Crew
Elevation (feet - arbitrary)
20.0
2002 2002 Survey Elevation 104.3 104.2 103.9 103.6 102.2 101.9 101.3 100.1 99.1 98.4 98.7 99.0 99.1 99.5 100.1 101.5 102.4 103.0 104.0 104.5 BKF
BKF
Notes
2004 Survey
Station 0.0 10.0 20.0 23.0 28.0 33.0 34.0 36.0 37.0 38.5 41.0 43.5 45.9 48.6 50.6 53.0 55.0 61.0 70.0 82.0 BKF
Notes
Station 0.0 17.5 25.0 28.3 32.2 33.0 33.8 34.98 35.8 36.4 38.3 39.4 42.9 46.2 46.8 47.4 48.5 49.6 50.2 54.1 54.8 58.2 67.9 76.7
2005 2005 Survey Elevation 104.27 104.06 103.21 102.48 102.88 101.79 101.40 99.79 98.99 98.85 97.88 97.28 97.77 98.26 98.56 98.88 99.68 100.32 101.55 101.89 102.14 102.75 103.62 104.13 BKF
Notes
Station 0.0 18.6 24.3 28.4 31.0 35.1 37.3 41.8 51.6 52.31 53.1 54.6 57.0 57.9 60.7 72.1 85.6
2002 Survey
60.0 2005 Survey
Distance (feet)
50.0 2003 Survey
40.0
70.0
BKF
Notes
2006 Survey
2006 2006 Survey Elevation 104.43 104.13 102.50 103.15 103.06 100.31 99.02 97.66 99.05 99.98 100.78 101.79 101.98 102.64 102.71 103.81 104.35
Bankfull Elev. (approx.)
Cross-Section #2 - Riffle Hominy Swamp Creek
2003 2003 Survey Elevation 104.3 104.3 103.9 102.5 102.9 101.1 98.8 98.0 98.2 98.4 100.7 102.1 103.0 103.9 104.6 104.5
30.0
Station 0.0 9.4 21.2 27.5 32.5 34.9 36.7 39.2 43.9 48.3 48.6 52.5 60.0 68.9 82.0 83.5
80.0
Area Width Mean Depth Max Depth
90.0
2002 53.1 21.6 2.5 3.8
2003 53.9 18.3 3.0 4.2
2005 60.7 22.1 2.7 4.9
100.0
2004 59.8 19.0 3.2 4.8
Photo of Cross-Section #2 - Looking Upstream
2006 58.8 21.7 2.7 4.1
96.0
97.0
98.0
99.0
100.0
101.0
102.0
103.0
104.0
105.0
0.0
BKF
10.0
Notes
Hominy Swamp Creek #3 Pool 4/19/06 Cook, Stafford
2002 2002 Survey Elv. 105.5 104.8 104.6 103.9 102.5 101.6 99.9 97.6 101.0 101.8 102.5 103.1 103.3 103.6
106.0
Station 0.0 8.6 25.1 31.4 37.3 38.2 39.4 45.2 51.8 56.5 65.0 72.8 89.9 91.0
Project Name Cross Section Feature Date Crew
Elevation (feet - arbitrary)
2002 Survey
20.0
2003 2003 Survey Station Elv. Notes 0.0 105.5 10.0 104.7 29.0 104.3 34.0 103.1 38.2 101.3 39.7 100.3 40.0 99.3 40.6 99.0 43.0 97.9 45.7 96.6 47.6 96.7 49.0 97.6 51.3 99.0 52.0 99.0 52.5 100.1 56.0 101.1 59.0 101.6 70.0 102.5 BKF 80.0 103.0 91.0 103.6
2003 Survey
30.0
Station 11.4 24.4 30.6 33.4 35.0 35.5 37.2 38.97 39.8 40.3 40.9 42.3 43.7 44.7 46.4 47.5 48.5 50.3 51.7 52.6 52.8 53.5 55.6 61.3 68.1 81.7
2005 2005 Survey Elv. Notes 104.72 104.6 104.04 103.37 102.93 102.77 102.42 101.51 100.2 99.1 98.8 98.7 97.9 97.6 97.8 98.0 97.7 98.3 98.8 99.2 100.4 101.6 101.9 102.4 BKF 102.6 102.9 Station 11.5 26.1 31.6 33.8 36.5 38.0 38.9 39.3 40.5 42.3 44.0 46.9 53.11 53.8 55.1 57.5 61.0 68.0 77.08 85.45
2006 2006 Survey Elv. Notes 104.7 104.5 104.1 103.3 102.6 102.0 BKF 101.6 100.4 99.6 98.9 98.3 97.9 98.864 99.594 100.952 101.383 102.039 BKF 102.668 103.198 103.015
60.0 2005 Survey
Distance (feet)
50.0 2004 Survey
40.0
80.0
90.0
2002 76.3 31.8 2.4 6.0
2003 64.9 33.1 2.0 5.5
100.0
2004 54.3 27.7 2.0 4.9
Photo of Cross-Section #3 - Looking Downstream
Area Width Mean Depth Max Depth
2006 Survey
70.0
Bankfull Elev. (approx.)
Cross-Section #3 -Pool Hominy Swamp Creek
2004 2004 Survey Station Elv. Notes 26.0 104.3 32.7 103.5 36.6 102.4 41.7 98.9 42.6 97.8 44.9 97.0 47.3 97.4 49.1 98.1 51.3 98.8 52.4 99.9 53.8 100.8 57.4 101.4 60.5 101.8 69.7 102.4 81.6 102.6 BKF 92.4 103.2 93.8 103.3 94.2 103.2
2005 61.8 24.0 2.6 4.8
2006 55.5 19.5 2.8 4.2
94.0
96.0
98.0
100.0
102.0
104.0
0.0
BKF
Notes
Hominy Swamp Creek #4 Pool 4/19/06 Cook, Stafford
2004 2004 Survey Elevation 104.7 104.3 103.2 101.7 99.4 98.2 97.4 96.7 95.5 95.3 95.8 98.2 102.5 102.9 104.7 104.9 104.9
106.0
Station 0.0 17.3 28.6 35.1 38.8 39.2 39.7 40.8 43.8 48.3 51.0 54.0 60.0 60.6 66.8 77.8 85.1
Project Name Cross Section Feature Date Crew
Elevation (feet - arbitrary)
10.0
Station 0.0 10.0 15.0 20.0 25.0 30.0 32.0 36.0 38.2 39.2 39.8 42.0 44.6 47.0 49.0 50.6 51.1 52.9 55.5 56.5 58.0 61.0 65.0 74.0 85.0 BKF
BKF
Notes
2004 Survey
20.0
2002 2002 Survey Elevation 104.7 104.6 104.4 104.0 103.5 102.8 102.5 100.8 99.2 98.2 97.8 96.9 96.2 96.4 96.8 97.3 98.5 98.8 100.7 101.5 102.4 104.1 104.7 105.0 104.9
2003 2003 Survey Elevation 104.7 104.8 104.4 103.0 102.2 100.4 99.7 97.7 96.7 95.4 95.6 96.0 96.5 96.5 98.7 101.4 102.5 104.0 104.7 104.9 Station 2.2 14.6 24.2 31.01 33.1 33.82 36.17 36.5 37.3 37.9 39.3 44.0 48.8 50.7 52.1 52.6 54.0 54.6 54.9 55.5 55.6 56.1 57.2 58.3 59.8 63.1 65.9 78.5
2005 2005 Survey Elevation 104.53 104.29 103.62 102.72 102.2 101.1 100.37 99.11 98.6 98.1 97.3 95.0 94.9 95.5 95.8 97.0 98.8 97.4 99.4 98.0 98.6 101.1 101.5 101.9 102.9 104.3 104.7 105.0 BKF
Notes
Station 0.0 15.1 24.6 27.64 32.14 33.3 35.56 36.65 37.5 38.1 39.7 44.8 49.9 53.7 56.0 58.0 59.4 60.1 62.0 66.3 75.6 91.1
60.0
2005 Survey
Distance (feet)
50.0
2003 Survey
40.0
2006 2006 Survey Elevation 104.7 104.375 103.364 102.864 102.163 101.472 100.664 100.052 99.141 98.3 97.9 96.9 95.5 97.9 98.1 100.6 101.3 101.7 102.5 104.4 104.8 104.6
Bankfull Elev. (approx.)
Cross-Section #4 -Pool Hominy Swamp Creek
BKF
Notes
2002 Survey
30.0
Station 0.0 0.4 14.3 28.7 33.4 34.5 36.9 37.4 40.6 44.5 46.5 49.8 51.7 51.9 53.8 55.5 57.7 61.5 65.6 85.1
2006 Survey
70.0
BKF
Notes
80.0
Area Width Mean Depth Max Depth
90.0
2002 88.3 23.5 3.8 6.0
2003 107.5 26.8 4.0 6.8
2005 119.5 25.4 4.7 7.3
100.0
2004 113.8 24.9 4.6 7.2
Photo of Cross-Section #4 - Looking Upstream
2006 109.0 23.8 4.6 6.7
B.5
LONGITUDINAL PLOTS AND RAW DATA TABLES
Hominy Swamp 2006 Longitudinal Profile 104
103
102
Elevation Feet
101
100
99
98
97
96
95
94 0
500
1000
1500
2000
Station As-Built
2006 Monitoring
2006 Water Surface
2006 Bankfull
Log Vane
Log Cross Vane
Root Wad
Rock Cross Vane
2006 Survey Hominy Swamp - EEP Project No. 180 TWG Station 3.64 18.24 27.57 32.90 45.64 67.08 75.98 89.01 102.13 113.65 124.09 140.65 154.58 165.49 176.74 187.93 206.14 211.44 220.27 226.65 238.64 250.77 264.29 277.55 278.43 290.97 300.21 311.70 323.46 340.54 362.17 371.39 381.39 396.27 412.58 433.83 455.31 481.77 499.70 504.15 517.70 536.34 543.43 552.78 564.35 594.32 604.80 624.74 645.04 663.78 678.33 694.98
WS Elevation Station 98.3 98.776 99.701 98.905 98.905 99.101 98.54 98.762 99.175 99.282 99.332 98.696 98.617 97.821 98.525 99.522 99.21 99.2 98.124 98.584 98.006 98.822 98.81 98.391 98.47 99.039 99.586 98.351 98.089 98.618 99.117 97.321 97.748 98.178 98.293 98.856 99.469 99.846 99.258 98.737 98.185 97.282 97.34 99.09 99.153 97.876 98.773 97.852 98.405 98.726 98.408 98.405
2.90 18.05 27.94 32.16 44.69 66.66 75.72 89.45 102.43 113.14 124.53 140.83 154.26 165.29 177.00 187.26 206.46 210.96 219.49 225.67 238.27 250.54 264.23 277.86 278.60 290.62 300.07 311.51 322.93 340.31 362.03 370.15 381.54 396.57 412.26 435.35 455.15 481.77 499.49 504.14 518.30 536.19 543.65 552.91 563.33 594.11 604.44 624.57 644.47 664.18 678.46 695.76
BKF Elevation Station 99.93 99.868 99.933 99.893 99.822 99.847 99.83 99.886 99.895 99.838 99.931 99.852 99.812 99.862 99.827 99.72 99.861 99.849 99.777 99.842 99.767 99.896 99.85 99.847 99.8 99.884 99.833 99.857 99.824 99.829 99.81 99.798 99.802 99.844 99.816 99.829 99.843 99.846 99.842 99.875 99.877 99.851 99.765 99.832 99.811 99.753 99.851 99.844 99.811 99.861 99.811 99.95
66.38 205.75 456.19 621.62 988.02 990.29 1158.10 1428.43 1487.08 1550.78 1638.20 1850.28 1987.85
Elevation 102.62 102.671 102.499 102.709 101.557 101.58 101.676 101.337 101.751 101.56 101.195 100.872 100.445
705.40 720.13 729.67 746.34 758.16 775.93 788.57 796.03 802.34 816.97 821.45 836.95 847.42 870.94 883.53 896.88 906.44 919.27 930.54 945.63 955.08 964.93 982.37 991.76 998.42 1004.84 1015.71 1031.93 1046.52 1063.35 1081.17 1105.49 1116.26 1126.99 1134.24 1148.99 1159.42 1180.15 1192.96 1204.11 1217.87 1230.83 1239.73 1246.78 1266.55 1282.35 1295.87 1306.07 1314.18 1321.23 1323.87 1330.93 1337.68 1345.07 1361.07 1369.19 1376.81 1386.99
98.577 98.342 98.364 98.206 98.085 98.301 99.296 98.701 97.489 98.724 98.568 98.042 98.809 98.87 97.951 98.053 98.703 98.74 98.162 97.465 97.257 97.671 97.953 97.836 97.446 97.414 98.139 98.436 98.426 98.362 98.239 98.442 97.8 97.838 98.361 97.34 97.333 98.169 98.061 97.913 97.66 98.15 97.398 98.012 97.849 97.162 97.293 97.385 98.147 98.964 98.403 98.177 97.887 96.654 96.441 96.822 96.603 97.548
705.18 719.68 728.80 746.82 775.40 788.45 796.46 802.46 816.52 820.81 836.41 847.71 870.49 883.31 896.71 906.31 919.11 929.78 945.89 955.78 965.34 982.09 991.98 997.86 1005.39 1015.89 1031.64 1046.71 1063.54 1081.92 1105.57 1116.53 1126.04 1133.77 1149.20 1160.37 1179.05 1192.93 1203.43 1216.71 1230.73 1239.17 1246.26 1265.86 1281.70 1295.67 1306.39 1314.75 1321.47 1323.64 1330.84 1337.76 1345.94 1359.70 1370.64 1374.67 1386.99 1393.55
99.837 99.78 99.787 99.842 99.825 99.77 99.096 99.084 99.138 99.092 99.094 99.021 99.073 98.97 99.127 99.175 99.16 99.091 99.046 98.997 99.097 99.129 99.114 99.111 99.05 99.041 99.047 99.072 99.027 99.051 99.052 98.997 99.075 98.987 98.979 99.015 99.069 99.121 99.034 99.044 99.05 99.049 99.081 99.075 99.072 99.113 99.077 99.115 99.065 98.965 98.917 98.899 98.845 98.682 98.795 98.74 98.881 98.878
1394.78 1410.28 1421.69 1441.19 1457.17 1463.44 1472.73 1480.83 1496.75 1506.16 1515.89 1524.49 1537.49 1545.79 1556.23 1572.21 1581.97 1592.53 1605.25 1613.40 1616.62 1618.55 1623.82 1629.98 1651.97 1661.02 1676.79 1684.37 1698.96 1713.21 1726.58 1739.46 1749.86 1758.80 1769.77 1792.96 1809.03 1814.88 1815.26 1825.26 1848.67 1858.70 1868.76 1873.49 1881.02 1893.40 1904.23 1919.75 1933.12 1946.45 1973.40 1985.64 2005.58 2027.68 2040.95 2050.22 2051.92 2064.86
97.643 97.54 97.816 98.433 98.073 97.178 96.389 96.001 96.642 97.037 97.127 97.502 97.811 98.067 97.404 97.323 97.102 97.665 97.765 98.308 98.731 97.687 96.8 95.494 95.19 96.804 97.769 98.224 97.526 96.665 96.998 96.728 96.339 96.779 97.403 97.162 97.537 98.064 97.735 96.804 96.476 96.038 96.79 95.859 95.223 95.337 95.467 95.771 95.957 96.018 96.248 96.237 96.827 97.109 96.614 96.544 96.391 95.351
1410.54 1422.06 1441.00 1457.68 1463.94 1472.39 1481.17 1497.08 1506.82 1517.22 1524.69 1538.37 1546.34 1556.67 1574.00 1583.07 1593.03 1604.77 1605.94 1613.15 1616.69 1618.42 1623.16 1630.81 1651.67 1660.92 1676.98 1684.66 1699.12 1712.51 1728.94 1739.69 1749.33 1758.82 1768.95 1793.88 1809.12 1814.90 1815.46 1825.72 1848.68 1858.53 1869.20 1873.15 1881.09 1892.68 1903.54 1914.88 1931.61 1946.21 1974.18 1985.86 2005.92 2027.85 2040.47 2050.09 2052.30 2065.62
98.865 98.913 98.916 89.891 98.889 98.827 98.916 98.852 98.867 98.908 98.9 98.853 98.901 98.909 98.841 98.903 98.878 98.945 98.894 98.881 98.928 98.402 98.443 98.387 98.404 98.374 98.414 98.419 98.412 98.391 98.427 98.423 98.264 98.451 98.239 98.425 98.396 98.393 98.113 98.107 98.059 97.987 98.009 97.928 97.799 97.876 97.929 97.919 97.834 97.936 97.766 97.721 97.844 97.863 97.782 97.746 97.808 97.705
2076.39 2092.83 2103.89 2107.54 2116.04
95.331 95.705 97.151 96.452 94.039
2076.45 2092.65 2104.25 2107.54 2115.41
97.714 97.615 97.741 97.566 97.659
B.6
PEBBLE COUNT PLOTS AND RAW DATA TABLES
total count: 100
-------------------------------------------------
Note: Cross-X1
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 8 8% 18% very fine sand 0.062 - 0.125 11 11% 24% 12 12% 36% fine sand 0.125 - 0.25 18 18% 54% medium sand 0.25 - 0.5 0.5 - 1 25 25% 79% coarse sand very coarse sand 1 -2 18 18% 97% 2 -4 6 6% 98% very fine gravel 4 -6 1 1% 99% fine gravel 6 8 0 0% 99% fine gravel 8 - 11 1 1% 100% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 percent finer than
silt/clay
0.1
Size (mm) 0.062 D16 0.29 D35 0.51 D50 0.78 D65 D84 1.5 2.8 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
sand
1
Size Distribution mean 0.3 dispersion 5.6 skewness -0.19
particle size (mm)
10
gravel
Cross Section 1 Pebble Count Distribution and Histogram
Year 5 Monitoring, Pebble Count Cross Section 1 Riffle Hominy Swamp Creek Stream Restoration Project Pebble Count Data Sheet Project No: D050515 Cross Section 1 11/1/2006 Station 15+60
100
cobble
1000
0 10000
5
10
15
20
25
30
# of particles
Type silt/clay 8% sand 84% gravel 8% cobble 0% boulder 0%
boulder
cumulative %
number of particles
total count: 100
-------------------------------------------------
Note: Cross-X2
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 6 6% 13% very fine sand 0.062 - 0.125 7 7% 14% 12 12% 26% fine sand 0.125 - 0.25 17 17% 43% medium sand 0.25 - 0.5 0.5 - 1 24 24% 67% coarse sand very coarse sand 1 -2 20 20% 87% 2 -4 9 9% 97% very fine gravel 4 -6 3 3% 98% fine gravel 6 8 1 1% 99% fine gravel 8 - 11 1 1% 100% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 percent finer than
silt/clay
0.1
Size (mm) 0.15 D16 0.38 D35 0.63 D50 0.97 D65 D84 1.9 4 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
sand
Bed Surface Pebble Count, ---
Year 5 Monitoring, Pebble Count Cross Section 2 Riffle Hominy Swamp Creek Stream Restoration Project Pebble Count Data Sheet Project No: D050515 Cross Section 2 11/1/2006 Station 14+41
1
Size Distribution mean 0.5 dispersion 3.6 skewness -0.07
particle size (mm)
10
gravel
100
cobble
silt/clay sand gravel cobble boulder
1000
boulder
cumulative %
Type 6% 80% 14% 0% 0%
0 10000
5
10
15
20
25
30
# of particles
number of particles
total count: 100
-------------------------------------------------
Note: Reach Wide
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 6 6% 13% very fine sand 0.062 - 0.125 8 8% 18% 14 14% 32% fine sand 0.125 - 0.25 12 12% 44% medium sand 0.25 - 0.5 0.5 - 1 23 23% 67% coarse sand very coarse sand 1 -2 18 18% 85% 2 -4 9 9% 94% very fine gravel 4 -6 8 8% 99% fine gravel 6 8 0 0% 99% fine gravel 8 - 11 1 1% 99% medium gravel 11 - 16 1 1% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 silt/clay
0.1
Size (mm) 0.14 D16 0.37 D35 0.68 D50 1.1 D65 D84 2.5 5.2 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
sand
1
10
gravel
100
cobble
Size Distribution mean 0.6 dispersion 4.3 skewness -0.05
particle size (mm)
Reach Wide Pebble Count Distribution and Histogram
Pebble Count Data Sheet Reach Wide Pebble Count
percent finer than
Year 5 Monitoring, Pebble Count Reach Wide Hominy Swamp Creek Stream Restoration Project Project No: D050515 11/1/2006
1000
Type 6% 75% 19% 0% 0%
0 10000
5
10
15
20
25
# of particles
silt/clay sand gravel cobble boulder
boulder
cumulative %
number of particles
total count: 100
-------------------------------------------------
Note: Cross-X2
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 4 4% 9% very fine sand 0.062 - 0.125 6 6% 14% 14 14% 28% fine sand 0.125 - 0.25 15 15% 43% medium sand 0.25 - 0.5 0.5 - 1 20 20% 63% coarse sand very coarse sand 1 -2 24 24% 87% 2 -4 11 11% 98% very fine gravel 4 6 2 2% 99% fine gravel 6 -8 3 3% 99% fine gravel 8 - 11 1 1% 99% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 percent finer than
0.1
Size (mm) 0.17 D16 0.42 D35 0.73 D50 1.2 D65 D84 2.1 4.9 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1
100
Size Distribution mean 0.6 dispersion 3.6 skewness -0.08
particle size (mm)
10
Cross Section 3 Pool Pebble Count Distribution and Histogram
Year 4 Monitoring, Pebble Count Cross Section 2 Riffle Hominy Swamp Creek Stream Restoration Project Pebble Count Data Sheet Project No: D050515 Cross Section 3 12/1/2005 Station 14+41
1000
cumulative %
silt/clay sand gravel cobble boulder
0%
Type 4% 79% 17% 0%
0 10000
5
10
15
20
25
30
# of particles
number of particles
total count: 100
-------------------------------------------------
Note: Cross-X1
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 7 7% 14% very fine sand 0.062 - 0.125 13 13% 20% 11 11% 31% fine sand 0.125 - 0.25 16 16% 47% medium sand 0.25 - 0.5 0.5 - 1 23 23% 70% coarse sand very coarse sand 1 -2 20 20% 90% 2 -4 7 7% 97% very fine gravel 4 -6 2 2% 99% fine gravel 6 -8 0 0% 99% fine gravel 8 - 11 1 1% 100% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 percent finer than
0.1
Size (mm) 0.078 D16 0.3 D35 0.55 D50 0.86 D65 D84 1.6 3.3 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1
100
Size Distribution mean 0.4 dispersion 5.0 skewness -0.17
particle size (mm)
10
Cross Section 1 Riffle Pebble Count Distribution and Histogram
Year 4 Monitoring, Pebble Count Cross Section 1 Riffle Hominy Swamp Creek Stream Restoration Project Pebble Count Data Sheet Project No: D050515 Cross Section 1 12/1/2005 Station 15+60
1000
cumulative %
Type silt/clay 7% sand 83% gravel 10% cobble 0% boulder 0%
0 10000
5
10
15
20
25
# of particles
number of particles
total count: 100
-------------------------------------------------
Note: Reach Wide
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 7 7% 14% very fine sand 0.062 - 0.125 6 6% 20% 0.125 0.25 12 12% 31% fine sand 13 13% 47% medium sand 0.25 - 0.5 0.5 - 1 24 24% 70% coarse sand very coarse sand 1 -2 19 19% 90% 2 -4 10 10% 97% very fine gravel 4 -6 7 7% 99% fine gravel 6 -8 1 1% 99% fine gravel 8 - 11 1 1% 100% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 0.1
Size (mm) 0.15 D16 0.43 D35 0.71 D50 1.1 D65 D84 2.5 5 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Bankfull Channel Pebble Count, ---
Pebble Count Data Sheet Reach Wide Pebble Count
percent finer than
Year 4 Monitoring, Pebble Count Reach Wide Hominy Swamp Creek Stream Restoration Project Project No: D050515 12/1/2005
1
100
Size Distribution mean 0.6 dispersion 4.1 skewness -0.06
particle size (mm)
10
1000
cumulative %
silt/clay sand gravel cobble boulder
Type 7% 74% 19% 0% 0%
0 10000
5
10
15
20
25
30
# of particles
number of particles
B.7 Table B.1 Categorical Stream Feature Visual Stability Assessment
Table B1. Visual Morphological Stability Assessment Project No. 180 (Hominy Swamp Creek) Feature Category
Metric (per As-built and reference baselines)
A. Riffles
1. Present? 2. Armor stable(e.g. no displacement)? 3. Facet grade appears stable? 4. Minimal evidence of embedding/fining? 5. Length appropriate? 1. Present? (e.g. not subject to severe aggradation or migration? 2. Sufficiently deep (Max Pool D:Mean Bkf>1.6) 3. Length Appropriate? 1. Upstream of meander bend (run/inflection) centering? 2. Downstream of meander (glide/inflection) centering? 1. Outer bend in state of limited/controlled erosion? 2. Of those eroding, # w/concomitant point bar formation? 3. Apparent Rc within spec? 4. Sufficient floodplain access and relief? 1. General channel bed aggradation areas (bar formation) 2. Channel bed degradation-areas of increasing downcutting or head cutting? 1. Free of back or arm scour? 2. Height appropriate? 3. Angle and geometry appear appropriate? 4. Free of piping or other structural failures? 1. Free of scour? 2. Footing stable?
B. Pools
C. Thalweg
D. Meanders
E. Bed General
F. Vanes
G. Wads/Boulders
(# Stable) Number Performing as Intended 2 2 2 2
Total number per Asbuilt 6 6 6 6
Total Number /feet in unstable state NA NA NA NA
% Perform in Stable Condition
Feature Perform. Mean or Total
33 33 33 33
2 NA*
6 NA*
NA NA*
33 NA*
NA*
NA*
NA*
NA*
NA* 12
NA* 20
NA* NA
NA* 60
NA*
12
20
NA
60
60%
11
20
NA
55
2
9
NA
22
20 18
20 20
NA NA
100 90
67%
NA
NA
5/85
NA
96%
NA
NA
0
NA
NA
25 28 28
31 31 31
NA NA NA
81 90 90
31
31
NA
100
90%
11 13
13 13
NA NA
85 100
93%
33%
*It is not clear in the as-built plans the total number of constructed pools. The channel is comprised mostly of pool sections, holding grade, and performing adequately.
APPENDIX C – ADDITIONAL SITE PHOTOS
C.1
BEAVER INFESTATION PHOTOS
Hominy Swamp Beaver Damage Photos Beaver Damage Photo 1
Beaver Damage Photo 2.
Beaver Damage Photo 3.
Beaver Damage Photo 4.
Beaver Damage Photo 5.
Beaver Damage Photo 6.
2006 Annual Monitoring Report 5th Year of 5-year Monitoring Plan
Submitted to: NCDENR/Ecosystem Enhancement Program 1619 Mail Service Center Raleigh, NC 27699-1619
December 2006
TABLE OF CONTENTS
Prepared by: Rummel, Klepper and Kahl, LLP Consulting Engineers 900 Ridgefield Dr., Suite 350 Raleigh, NC 27609 Design Firm: KCI Associates of North Carolina, P.A. 1.0 Executive Summary/Project Abstract .
.
2.0 Project Background . . . . . 2.1 Location and Setting . . . 2.2 Mitigation Structure and Objectives 2.3 Project History and Background . 2.4 Monitoring Plan View . . .
.
.
.
.
.
.
.
.
1
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
1 1 1 2 3
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
7 7 7 7 7 8 8 8 8 8 9 9 9 9 10 10 10 10
3.0 Project Condition and Monitoring Results . . 3.1 Vegetation Assessment . . . . 3.1.1 Soil Data . . . . . . 3.1.2 Vegetative Problem Areas . . 3.1.3 Vegetative Problem Area Plan View 3.1.4 Stem Counts . . . . . 3.1.5 Vegetation Plot Photos . . . 3.2 Stream Assessment . . . . . 3.2.1 Procedural Items . . . . 3.2.1.a Morphometric Criteria . . 3.2.1.b Hydrologic Criteria . . 3.2.1.c Bank Stability Assessment . 3.2.2 Problem Areas Plan View (Stream) 3.2.3 Problem Areas Table . . . 3.2.4 Numbered Issue Photos Section . 3.2.5 Fixed Station Photos . . . 3.2.6 Stability Assessment Table . . 3.2.7 Quantitative Measures Tables .
TABLES Table 1. Table II. Table III. Table IV. Table V. Table VI. Table VII. Table VIII. Table IX. Table X. Table XI. Table XII. Table XIII.
Project Structure and Objectives Table . . . . Project Activity and Reporting History . . . . Project Contact Table . . . . . . . Project Background Table . . . . . . Preliminary Soil Data . . . . . . . Vegetative Problem Areas . . . . . . Stem counts for each species arranged by plot . . Verification of Bankfull Events . . . . . BEHI and Sediment Export Estimates . . . . Stream Problem Areas . . . . . . . Categorical Stream Feature Visual Stability Assessment Baseline Morphology and Hydraulic Summary . . Morphology and Hydraulic Monitoring Summary .
. . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . . . . .
. .
.
.
. . . . . . . . . . . . .
1 2 2 3 7 7 8 9 9 10 10 11 12
FIGURES Figure 1 Project Site Map. . . Figure 2 Aerial Watershed Photo.
. .
. .
. .
. .
. .
. .
. .
APPENDIX A – VEGETATION RAW DATA A.1 Vegetative Problem Area Plan View A.2 Vegetation Problem Areas Photos A.3 Vegetation Monitoring Plot Photos APPENDIX B – GEOMORPHOLOGIC RAW DATA B.1 B.2 B.3 B.4
Problem Areas Plan View (Stream) Stream Problem Area Photos Stream Cross Section Photos Cross section Plots and Raw Data Tables Exhibit cross section B.5 Longitudinal Plots and Raw Data Tables Exhibit Longitudinal Profile Exhibit Raw Data Tables for Slope B.6 Pebble Count Plots and Raw Data Tables B.7 Table B.1. Categorical Stream Feature Visual Stability Assessment APPENDIX C – Additional Site Photos C.1 Beaver Infestation Photos
4 5
1.0
Executive Summary/Project Abstract
Hominy Swamp Creek was restored through the North Carolina Wetlands Restoration Program (NCWRP). The objectives of the project are to: 1.) Establish a stable dimension, pattern and profile on 2,232 feet of Hominy Swamp Creek 2.) Improve habitat within Hominy Swamp Creek 3.) Establish a riparian buffer along Hominy Swamp Creek 4.) Incorporate this project into a watershed wide management plan This is the 5th year of the 5-year monitoring plan for Hominy Swamp Creek. Overall, while the majority of the stream is functioning well and holding grade, the stream has areas of concern and areas of immediate need. Table X shows a summary of identified problem areas within the project reach. Channel dimension and pattern are similar to as-built conditions with the exceptions of the noted areas of bank slumping. The channel profile is void of defined bed features and is dominated by runs and pools. Placed structures are holding grade and functioning well. However, beavers have infested the project as of December 2006. Some of the newly planted vegetation within the vegetation plots and within the restored riparian buffer has been destroyed. Immediate attention is recommended to alleviate the current and potential future problems. Photographs of the recent beaver activity are located in Appendix C. 2.0
Project Background 2.1
Location and Setting
The project is located within the city limits of Wilson, North Carolina. From Raleigh, take US 64 BYP East to US 64 then US 264 (Wilson exit). Proceed east on US 264 to Exit 36B, US 264 ALT East (Raleigh Road). Continue into Wilson on Raleigh Road until you reach Ripley Road. Turn left (north) on Ripley Road and the site is immediately on the east/right side of the road. Refer to Figure 1 for project location. 2.2
Mitigation Structure and Objectives
The restoration of this portion of Hominy Swamp Creek, located within the Wilson City Recreational Park, was conducted to correct identified system deficiencies including severe bank erosion, channel widening, and the loss of aquatic habitat resulting from stream channelization, the loss of riparian vegetation, and watershed development. The goal of the project was to develop a stable stream channel with reduced bank erosion, efficient sediment transport, enhanced warm water fisheries, and improved overall stream habitat and site aesthetics. Construction of the project was completed in September 2001.
Table I. Project Structure and Objectives Table Project No. 180 (Hominy Swamp Creek) Segment Reach ID Mitigation Type Approach Linear Feet/Acreage Hominy Swamp Creek Restoration Priority 1 2,232 feet
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
1
2.3
Project History and Background
Tables II, III, and IV provide the project history, contact information and background data. Table II. Project Activity and Reporting History Project No. 180 (Hominy Swamp Creek) Calendar Year of Completion or Planned Actual Completion Activity or Report Completion Date Restoration Plan 2001 Mitigation Plan January 2003 Construction September 2001 As-Built Report June 2002 Initial – Year 1 January 2003 Monitoring Year 2 monitoring December 2003 Year 3 Monitoring December 2004 Year 4 Monitoring December 2005 (draft) March 2006 (final) Year 5 Monitoring December 2006 (draft) January 2007 (final) Year 5+ Monitoring TBD
Table III. Project Contact Table Project No. 180 (Hominy Swamp Creek) KCI Associates of North Carolina, P.A. Designer Landmark Center II, Suite 200 4601 Six Forks Road Raleigh, NC 27609 Not provided Construction Contractor Not provided Planting Contractor Not provided Seeding Contractor Seed Mix Sources Not provided Nursery Stock Suppliers Not provided Rummel, Klepper & Kahl, LLP Monitoring Performers (Years 4 & 5) 900 Ridgefield Drive, Suite 350 Raleigh, NC 27609 Stream Monitoring POC Howard Woodall, P.E. 919-878-9560 Vegetation Monitoring POC Howard Woodall, P.E. 919-878-9560
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
2
Table IV. Project Background Table Project No. 180 (Hominy Swamp Creek) Wilson County, North Carolina Project County 5.4 square miles Drainage Area Not provided Drainage impervious cover estimate (%) 3 Stream Order Coastal Plain Physiographic Region Rolling Coastal Plain Ecoregion E5 Rosgen Classification of As-Built PSS1Ad Cowardin Classification Bibb Loam (Bb) Dominant soil types Hominy Swamp Creek Reference site ID 3020203020040 USGS HUC for Project and Reference 03-04-07 Neuse River Basin NCDWQ Sub-basin for Project and Reference C; Sw, NSW NCDWQ Classification for Project and Reference Yes – From its source to Conentnea Creek Any portion of any project segment 303d listed? Any portion of any project segment upstream of a 303d listed segment? Impaired biological integrity; Stressors not Reasons for 303d listing or stressor identified (Potential sources: Urban Runoff/Storm Sewers) 0 % of project easement fenced
2.4
Monitoring Plan View
See following page for Monitoring Plan View.
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
3
$ d " !
?
A
Elm City
K ¿
s ?
esex
Bailey Sims
K ¿ $ d " !
4
Sharpsburg
K ´
Pinetops
d ? Macclesfield
? d A W I L S O N C o u n t yK ¿ d ? K ´ B A K K ´ $ d " ! Wilson
A Fountain Saratoga
Lucama
Black Creek
222
Stantonsburg
Kenly
K ¿ K ¿ ?
Walstonburg
Hominy Swamp Stream Resoration Site
" NC Ecosystem Enhancement Program Produced by: RK&K Engineers
Hominy Swamp Stream Restoration EEP Project No: 180
Project Site Map 0
1,000
2,000
4,000
6,000
8,000 Feet
1 inch equals 2,000 feet
Monitoring Year 5 of 5 December 2006
Figure 1
Source: USGS 7.5 Minute Quadrangles, Wilson & Winstead Crossroads, NC
4
Watershed Boundary
" Digital Elevation Model
Project Location
"
NC Ecosystem Enhancement Program Produced by: RK&K Engineers
Hominy Swamp Stream Restoration EEP Project No: 180 0
1,000 2,000 3,000 4,000 5,000 Feet Miles
0
1
Aerial Watershed Photo Monitoring Year 5 of 5 December 2006
Figure 2
3.0
Project Condition and Monitoring Results 3.1
Vegetation Assessment
The vegetation monitoring for 2005 yielded no monitoring plots meeting minimum success requirements. EEP replanted the Hominy Swamp Stream restoration site for 2006 (monitoring year 5). Based upon the latest EEP vegetation monitoring guidelines, six vegetation monitoring plots were monitored for vegetation success. The plots were installed as 10 meter X 10 meter plots on or near the previous vegetation monitoring plots. The results of the stem counts yielded a site average of 405 stems per acre which exceeds the minimum success requirement of 260 stems per acre after vegetation monitoring year 5. 3.1.1
Soil Data
The Bibb series consists of very deep, poorly drained, moderately permeable soils that formed in stratified loamy and sandy alluvium. These soils are on flood plains of streams in the Coastal Plain. They are commonly flooded and water runs off the surface very slowly. Slopes range from 0 to 2 percent. The vegetation found on Bibb series is usually dominated by native woodland species consisting of sweetgum, loblolly pine, red maple, water oak, willow oak, green ash, baldcypress, swamp tupelo, and black willow.
Series Bibb Loam (Bb) 3.1.2
Feature/Issue Plot 2 3.1.3
Table V. Preliminary Soil Data Project No. 180 (Hominy Swamp Creek) Max % Clay on Depth K Surface (in.) 80 2 – 18 .28 - .37
T
OM %
5
.5 - 2
Vegetative Problem Areas Table VI. Vegetative Problem Areas Project No. 180 (Hominy Swamp Creek) Station #/Range Probable Cause 15+00L Dead stems
Photo # Appendix A.2 P1
Vegetative Problem Area Plan View
Refer to Appendix A.1 for Vegetative Problem Area Plan View.
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
5
3.1.4
Stem Counts
The results of the stem counts yielded an average of 405 trees per acre which exceeds the minimum success criteria of 260 trees per acre after year 5 monitoring. Data for the number and type of species initially planted in each vegetation plot to acquire initial totals is not available for the new plots. To determine if the surviving stems met the minimum success criteria, the density of the surviving stem counts in the plots was converted to stems per acre.
Species
Table VII. Stem counts for each species arranged by plot Project No. 180 (Hominy Swamp Creek) Initial Totals Plots Year 5 Totals 1
2
3
4
5
Survival %
6
Trees Quercus nigra Quercus lyrata Quercus laurifolia Quercus phellos Quercus pagoda Quercus michauxii Quercus alba Taxodium distichum Carya ovata Ilex verticillata Nyssa sylvatica Fraxinus pennsylvanica Cornus florida Viburnum dentatum Amelanchier canadensis Cercis canadensis Clethra alnifolia Itea virginica Caphlanthus occidentalis Salix nigra
3.1.5
2 2 1 2
5 2 1
2
3
2
2
1 1 1
2 2 2
2 2 1
2
2 3
2 5
3 1
1 2
1
0 2 11 10 11 0 0 0 0 0 6 2 3 0 0
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 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 N/A N/A
4 5 5 1
N/A N/A N/A N/A N/A
N/A N/A N/A N/A N/A
Vegetation Plot Photos
Photos are located in Appendix A. 3.2
Stream Assessment 3.2.1
Procedural Items 3.2.1.a Morphometric Criteria
Dimension – Previously established cross-sections were surveyed for comparison to past measurements. Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
6
Profile – The longitudinal profile of the restored stream was also surveyed for comparison to the previous monitoring survey. Since the total restored length is less than 3000 feet, the entire reach was surveyed. 3.2.1.b Hydrologic Criteria Two bankfull events must be recorded during the 5 year monitoring period in order to meet hydrologic criteria. Table VIII. Verification of Bankfull Events Project No. 180 (Hominy Swamp Creek) 2002 (MY-1) : January 5, January 22, March 2 2004 (MY-3) : Unspecified date (see 2004 report Sec. 2.1.1 “Results and Discussions” on pg. 7) 3.2.1.c Bank Stability Assessment
Post Con.
ft
%
ft
%
ft
%
ft
%
ft
Sediment Export
Very low
Low
Moderate
High
Very High
Extreme
Linear Footage or Acreage
Segment/ Reach
Time Point
Table IX. BEHI and Sediment Export Estimates Project No. 180 (Hominy Swamp Creek)
%
ft
%
Ton /y
Reach I
2,232 lf
50
2.2
28
1.2
25 1.1
60
2.7
2069 92.8
57
Project Total
2,232 lf
50
2.2
28
1.2
25 1.1
60
2.7
2069 92.8
57
3.2.2 Problem Areas Plan View (Stream) – Refer to B.1 for Problem Areas Plan View. 3.2.3 Problem Areas Table – Table X below provides categorical feature issues by station, the suspected cause, and denotes the number of a representative photo of the condition (Appendix B).
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
7
Feature/Issue Aggradation/ Formation
Bar
Bank Scour
Table X. Stream Problem Areas Project No. 180 (Hominy Swamp Creek) Station Suspected Cause Numbers Upstream bank scour and watershed disturbance Upstream bank scour and watershed disturbance Upstream bank scour and watershed disturbance Upstream bank scour and watershed disturbance Upstream bank scour and watershed disturbance Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass Lack of Riparian Buffer, overland flow, lack bank vegetation root mass
01+65 – 01+85 03+70 - 03+90 04+10 - 04+40 05+15 - 05+55 09+80 - 10+15 1+00 – 1+50 02+65 – 02+85 06+00 – 06+30 15+15 – 15+45 15+60 – 15+90 21+50 – 21+65 21+70 – 22+00
Feature A. Riffles B. Pools C. Thalweg D. Meanders E. Bed General F. Vanes/J Hooks etc. G. Wads and Boulders
3.2.4
Numbered issue photos section – Refer to B.2 for photos.
3.2.5
Fixed station photos – Refer to B.3 for photos.
3.2.6
Stability Assessment Table
Photo number P74 P65, P67 P62 P58, P59 P40, P42 P75, P76 P70, P72 P54 P25 P23 P3 P2
Table XI. Categorical Stream Feature Visual Stability Assessment Project No. 180 (Hominy Swamp Creek) Initial MY-01 MY-02 MY-03 MY-04 MY-05 100% NA 100% 100% 100%
NA NA NA NA NA
NA NA NA NA NA
NA NA NA NA NA
33% NA 60% 67% 96%
33% NA 60% 67% 96%
100%
NA
NA
NA
90%
90%
100%
NA
NA
NA
93%
93%
3.2.7 Quantitative Measures Tables – Refer to the following pages for Table XII (Baseline Morphology and Hydraulic Summary) and Table XIII (Morphology and Hydraulic Monitoring Summary).
Hominy Swamp Stream Restoration, Project no: 180 RK&K Engineers, January 2007 Monitoring Year 5 of 5
8
Min
Max
Med
Min
n/a n/a n/a n/a
BF Cross
BF Mean
BF Max
Width/Depth
Entrenchmen
Meander
n/a 26 n/a
Riffle slope
Pool length
Pool spacing
n/a
d84 (mm)
1.1
Sinuosity
n/a
n/a
VFsand
69.56
n/a
0.0018
n/a
7.7
n/a
n/a
92
>2.2
7.4
2.11
1.61
19.2
45
11.9
Med
n/a
n/a
91
35
n/a
n/a
n/a
182
46.5
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Min
n/a
E5
n/a
0.0014
1.2
2,232
1,850
n/a
n/a
127.5
49
n/a
n/a
n/a
255
62.6
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Max
Design
n/a
0.25
n/a
n/a
0.0015
n/a
4.2
n/a
n/a
85
>5
7.4
4.3
2.73
55
>100
20.2
Med
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
12.1
8.8
3.6
2.46
53.4
n/a
21.7
Min
n/a
n/a
n/a
n/a
2,232
1,850
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
13.9
9.9
3.8
2.51
62.3
n/a
24.8
Max
As-Built
n/a
n/a
E5
n/a
0.0015
1.41
n/a
n/a
n/a
n/a
n/a
29
n/a
n/a
n/a
150
36.9
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Max
Extent of BF
n/a
n/a
n/a
20
n/a
n/a
n/a
107
27.35
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Min
n/a
E5 (Modified)
Rosgen
n/a
n/a
167
n/a
0.00016
n/a
3.6
n/a
n/a
92
>4
9.3
4.68
2.74
70
>100
25.5
Med
Project Reference Stream
Number of
n/a
BF slope
0.0015
n/a
Water
n/a
Valley
n/a
n/a
n/a
38
n/a
n/a
n/a
170
Channel
Additional
n/a
d50 (mm)
Substrate
n/a
Riffle length
Profile
n/a
Meander
135
43 114
Radius of
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Max
Pre-Existing Condition
Channel
Pattern
Hydraulic
Wetted
n/a n/a
Floodprone
n/a
Med
Regional Curve Interval
BF Width
Max
USGS Gauge Data
Dimension Min
Parameter
Table XII. Baseline Morphology and Hydraulic Summary Project No. 180 (Hominy Swamp Creek)
n/a
0.26
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
13
9.4
3.7
2.49
57.9
>300
23.3
Med
MY1
0.58
8.79
3.8
2.5
53.1
21.6
Min
0.63
0.2
13.85
>300
30 64
Pool length (ft)
178
73
53
3.2
1.5
15
76 227
69
Max
33
Pool spacing (ft)
Riffle slope (ft/ft)
Riffle length (ft)
Profile
0.67
0.26
4.8
3.2
59.8
19
107
52
23
2.1
155
56
46
Med
MY-02 (2003)
0.49
0.17
4.2
3
53.9
18.3
115
Radius of Curvature (ft) Meander Wavelength (ft) Meander Width ratio
1.5
0.51
8.0
4.8
3
73
24.1
32
1.6
1.55
6.4
4.6
3.4
73.9
21.7
MY5
Channel Beltwidth (ft)
Med
Max
1.88
Pattern
Min
0.29
0.58
MY-01 (2002)
2
4.9
3.1
52.7
16.8
MY4
Parameter
0.54
d50 (mm)
9.9
12.08
Width/Depth Ratio
Entrenchment Ratio
d84 (mm)
3.6
BF Max Depth (ft)
Substrate
3.5
6.8
87.2
2.5
24.6
62.3
25
Cross Section 1 Riffle MY2 MY3
BF Cross Sectional Area (ft2) BF Mean Depth (ft)
Floodprone Width (ft) >300
BF Width (ft)
Parameter Dimension
1.8
1.64
8.2
4.9
2.7
60.7
22.1 n/a
1.9
0.63
8.0 n/a
4.1
2.7
58.8
21.7
45
32
16
1.8
115
33
32
Min
13.65
0.22
6
2.4
76.3
31.8
165
115
41
3.9
227
76
69
Max
MY4
108
53
28
2.6
155
56
46
Med
17.73 n/a
1.88 n/a
4.9
2
54.3
27.7
MY-03 (2004)
5.88
0.26
5.5
2
64.9
33.1
Table XIII. Morphology and Hydraulic Monitoring Summary Project No. 180 (Hominy Swamp Creek) Cross Section 2 Cross Section 3 Riffle Pool MY1 MY2 MY3 MY4 MY5 MY1 MY2 MY3
4.8
2.6
61.8
24
n/a
n/a
MY5
4.2
2.8
55.5
19.5
n/a
n/a
MY1
1.4
115
33
32
Min
3.74
0.17
6
3.8
88.3
23.5
0.62
0.22
6.8
4
107.5
26.8
0.75 n/a
0.27 n/a
7.2
4.6
113.8
24.9
3.1
227
76
69
Max
2.1
155
56
46
Med
25.4
7.3
4.7
119.5
MY-04&5 (2005&2006)
MY2
Cross Section 4 Pool MY3 MY4
n/a
n/a
MY5
6.7
4.6
109
23.8
APPENDIX A – VEGETATION RAW DATA
A.1
VEGETATIVE PROBLEM AREA PLAN VIEW
4 0+ 00
00 1+ 2+00
00 3+
4
5+00
4+00
8+00
7+00
6+00
5
0 9+0
10+00
00 11+
3 0 +0 12
13+00 14 +0 0
15+00
2 16+0 0
0 +0 17
6
00 18+
00 19+ 0 +0 20
1
Legend Vegetation Monitoring 00 21+
Stem Count >= 260 Stem Count < 260 Vegetation Boundary
22+00
Edge of Water (As-built) Thaweg (As-built)
NC Ecosystem Enhancement Program Produced by: RK&K Engineers
Hominy Swamp Stream Restoration EEP Project No: 180
Vegetation Problem Area Plan View Monitoring Year 5 of 5 December 2006
Appendix A.1
0
50 100
200
300
400
500 Feet
A.2
VEGETATION PROBLEM AREAS PHOTOS
Hominy Swamp Vegetation Problem Area Photos Vegetation Monitoring Plot 2
A.3
VEGETATION MONITORING PLOT PHOTOS
Hominy Swamp Vegetation Monitoring Plot Photos Vegetation Monitoring Plot 1
Vegetation Monitoring Plot 2.
Vegetation Monitoring Plot 3.
Vegetation Monitoring Plot 4.
Vegetation Monitoring Plot 5.
Vegetation Monitoring Plot 6.
APPENDIX B – GEOMORPHOLOGIC RAW DATA
B.1
PROBLEM AREAS PLAN VIEW
P76 - Left Bank Erosion
P75 - Left Bank Erosion
0+ 0
P72 - Left Bank Erosion
0
P67 - Aggradation 0 1+
P74 - Aggradation
0 2+00
P62 - Aggradation
0 3+
4
0
P70 - Left Bank Erosion
4+00
P65 - Aggradation
5+00
P59 - Aggradation
6+00
5 P54 Left Bank Erosion
8+00
7+00
P58 - Aggradation
Legend
P42 - Aggradation
Feature Issues Aggradation - Concern
0 9+
Aggradation - High Concern
0
Erosion - Concern Erosion - High Concern
Vegetation Monitoring Stem Count >= 260
P40 - Aggradation
Stem Count < 260
10+00
Vegetation Boundary Edge of Water (As-built) Thalweg (As-built) PAPV_matchline
NC Ecosystem Enhancement Program Produced by: RK&K Engineers
00 11+
Hominy Swamp Stream Restoration EEP Project No: 180
Problem Area Plan View Appendix B.1
50
100
200
Feet
tc
2
3 00
January 2007
0
Ma
o
+ 12
(Sheet 1 of 2) Monitoring Year 5 of 5
t ne i l h
eet Sh
SHEET 1
00 11+
Ma
tc
t ne hli
o
eet Sh
1
3 + 12 00
13+00 00
15+00
14 +
P23 - Right Bank Erosion
2 16+0 0
P25 - Left Bank Erosion
+ 17 00
6
18+ 00
00 19+
P3 - Right Bank Erosion
+ 20
1
00
00 21+
P2 - Right Bank Erosion 22+00
Legend Feature Issues Aggradation - Concern Aggradation - High Concern Erosion - Concern Erosion - High Concern
Vegetation Monitoring Stem Count >= 260 Stem Count < 260 Vegetation Boundary Edge of Water (As-built) Thalweg (As-built) PAPV_matchline
NC Ecosystem Enhancement Program Produced by: RK&K Engineers
Hominy Swamp Stream Restoration EEP Project No: 180
Problem Area Plan View (Sheet 2 of 2) Monitoring Year 5 of 5 January 2007
Appendix B.1
0
50
100
200 Feet
SHEET 2
B.2
STREAM PROBLEM AREAS PHOTOS
Stream Pictures Taken September 17, 2006 all facing upstream P40
P42
P58
P59
P62
P65
P67
P74
Erosion Pictures P2 – Right Bank Erosion
P3 – Right Bank Erosion
P5 – Left Bank Erosion
P23 – Right Bank Erosion
P25 – Left Bank Erosion
P54 – Left Bank Erosion
P70 – Left Bank Erosion
P72 – Left Bank Erosion
P75 – Left Bank Erosion
P76 – Left Bank Erosion
B.3
STREAM CROSS SECTION PHOTOS
Hominy Swamp Cross-section Photos
P69. Station 6+30. Cross-section 1.
P37. Station 14+10. Cross-section 3.
P41. Station 13+40. Cross-section 2.
P6. Station 19+90. Cross-section 4,
B.4
CROSS SECTION PLOTS AND RAW DATA TABLES
Hominy Swamp Creek #1 Riffle 4/19/06 Cook, Stafford
94
96
98
100
102
104
106
0
10
2004 2004 Survey Elevation Notes -2.22 106.52 0 106.4 15.04 106.06 29.3 103.95 31.92 103.14 34.12 98.68 38.15 99.23 39.31 99.76 43.25 99.73 46.13 101.85 47.72 103.82 49.53 104.16 51.77 103.56 55.23 104.18 BKF 77.16 104.99 94.4 105.27 94.94 105.01
108
Station
Cross Section Feature Date Crew
Elevation (feet - arbitrary)
20
2002 2002 Survey Elevation Notes 106.4 106.29 106.09 105.42 104.43 BKF 103.23 102.42 101.21 100.8 99.94 99.93 99.85 99.68 99.52 99.66 99.99 100.49 100.84 101.32 102.73 103.16 103.57 BKF 104.38 105.06
2004 Survey
Station 0 10 15 20 23 28 30 32 33.2 33.5 36 39 42.8 45 46.3 48 48.3 49.3 49.5 51.7 53 60 70 90 BKF
BKF
Notes
Station 7.2 16.68 22.41 29.79 33.07 33.33 35.12 38.02 41.5 43.72 45.33 47.22 49.5 51.47 86.19
2005 2005 Survey Elevation 106.34 106.00 104.54 103.71 99.77 100.24 99.36 99.31 99.16 99.44 99.84 101.04 101.07 103.71 105.11 BKF
Notes
Station 0.0 15.7 22.49 27.42 30.93 32.95 33.97 34.59 44.03 47.4 48.12 49.83 50.86 51.47 53.29 73.98
60 2005 Survey
Distance (feet)
50 2003 Survey
40
70
BKF
BKF
Notes
2006 Survey
2006 2006 Survey Elevation 106.299 106.117 104.51 103.88 103.34 102.39 99.97 99.88 99.11 99.89 101.28 101.44 103.07 103.87 104.05 104.51
Bankfull Elev. (approx.)
Cross-Section #1 - Riffle Hominy Swamp Creek
2003 2003 Survey Elevation 106.52 105.79 105.14 104.65 104.05 102.58 99.64 98.91 97.99 96.9 96.38 96.41 96.65 97.23 98.33 99.88 102.65 102.78 103.7 105.02 105.01 105.01 105.04 105.07
2002 Survey
30
Station 0 12.4 18.9 22.55 25.31 27.88 30.03 31 32.24 33.47 35.45 36.15 37.39 39.08 42.9 44.3 47.0 47.1 59.1 79.2 89.3 89.7 89.8 97.4
80
Area Width Mean Depth Max Depth
90
2002 62.3 25.0 2.5 3.6
2003 87.2 24.6 3.5 6.8
100
2004 52.7 16.8 3.1 4.9
Photo of Cross-Section #1 - Looking Downstream
Cross-Section #1 location was moved in 2003
2005 73.9 21.7 3.4 4.6
2006 73.0 24.1 3.0 4.8
96.0
97.0
98.0
99.0
100.0
101.0
102.0
103.0
104.0
0.0
10.0
BKF
Notes
Hominy Swamp Creek #2 Riffle 4/19/06 Cook, Stafford
2004 2004 Survey Elevation 104.3 104.3 103.7 102.6 103.0 102.8 100.2 98.2 97.4 97.5 98.4 99.2 101.0 101.5 102.8 103.9 104.4 104.5
105.0
Station 0.0 10.7 22.8 28.3 30.1 32.6 34.2 36.8 41.2 43.2 45.9 47.5 48.1 51.5 57.9 68.4 81.8 81.8
Project Name Cross Section Feature Date Crew
Elevation (feet - arbitrary)
20.0
2002 2002 Survey Elevation 104.3 104.2 103.9 103.6 102.2 101.9 101.3 100.1 99.1 98.4 98.7 99.0 99.1 99.5 100.1 101.5 102.4 103.0 104.0 104.5 BKF
BKF
Notes
2004 Survey
Station 0.0 10.0 20.0 23.0 28.0 33.0 34.0 36.0 37.0 38.5 41.0 43.5 45.9 48.6 50.6 53.0 55.0 61.0 70.0 82.0 BKF
Notes
Station 0.0 17.5 25.0 28.3 32.2 33.0 33.8 34.98 35.8 36.4 38.3 39.4 42.9 46.2 46.8 47.4 48.5 49.6 50.2 54.1 54.8 58.2 67.9 76.7
2005 2005 Survey Elevation 104.27 104.06 103.21 102.48 102.88 101.79 101.40 99.79 98.99 98.85 97.88 97.28 97.77 98.26 98.56 98.88 99.68 100.32 101.55 101.89 102.14 102.75 103.62 104.13 BKF
Notes
Station 0.0 18.6 24.3 28.4 31.0 35.1 37.3 41.8 51.6 52.31 53.1 54.6 57.0 57.9 60.7 72.1 85.6
2002 Survey
60.0 2005 Survey
Distance (feet)
50.0 2003 Survey
40.0
70.0
BKF
Notes
2006 Survey
2006 2006 Survey Elevation 104.43 104.13 102.50 103.15 103.06 100.31 99.02 97.66 99.05 99.98 100.78 101.79 101.98 102.64 102.71 103.81 104.35
Bankfull Elev. (approx.)
Cross-Section #2 - Riffle Hominy Swamp Creek
2003 2003 Survey Elevation 104.3 104.3 103.9 102.5 102.9 101.1 98.8 98.0 98.2 98.4 100.7 102.1 103.0 103.9 104.6 104.5
30.0
Station 0.0 9.4 21.2 27.5 32.5 34.9 36.7 39.2 43.9 48.3 48.6 52.5 60.0 68.9 82.0 83.5
80.0
Area Width Mean Depth Max Depth
90.0
2002 53.1 21.6 2.5 3.8
2003 53.9 18.3 3.0 4.2
2005 60.7 22.1 2.7 4.9
100.0
2004 59.8 19.0 3.2 4.8
Photo of Cross-Section #2 - Looking Upstream
2006 58.8 21.7 2.7 4.1
96.0
97.0
98.0
99.0
100.0
101.0
102.0
103.0
104.0
105.0
0.0
BKF
10.0
Notes
Hominy Swamp Creek #3 Pool 4/19/06 Cook, Stafford
2002 2002 Survey Elv. 105.5 104.8 104.6 103.9 102.5 101.6 99.9 97.6 101.0 101.8 102.5 103.1 103.3 103.6
106.0
Station 0.0 8.6 25.1 31.4 37.3 38.2 39.4 45.2 51.8 56.5 65.0 72.8 89.9 91.0
Project Name Cross Section Feature Date Crew
Elevation (feet - arbitrary)
2002 Survey
20.0
2003 2003 Survey Station Elv. Notes 0.0 105.5 10.0 104.7 29.0 104.3 34.0 103.1 38.2 101.3 39.7 100.3 40.0 99.3 40.6 99.0 43.0 97.9 45.7 96.6 47.6 96.7 49.0 97.6 51.3 99.0 52.0 99.0 52.5 100.1 56.0 101.1 59.0 101.6 70.0 102.5 BKF 80.0 103.0 91.0 103.6
2003 Survey
30.0
Station 11.4 24.4 30.6 33.4 35.0 35.5 37.2 38.97 39.8 40.3 40.9 42.3 43.7 44.7 46.4 47.5 48.5 50.3 51.7 52.6 52.8 53.5 55.6 61.3 68.1 81.7
2005 2005 Survey Elv. Notes 104.72 104.6 104.04 103.37 102.93 102.77 102.42 101.51 100.2 99.1 98.8 98.7 97.9 97.6 97.8 98.0 97.7 98.3 98.8 99.2 100.4 101.6 101.9 102.4 BKF 102.6 102.9 Station 11.5 26.1 31.6 33.8 36.5 38.0 38.9 39.3 40.5 42.3 44.0 46.9 53.11 53.8 55.1 57.5 61.0 68.0 77.08 85.45
2006 2006 Survey Elv. Notes 104.7 104.5 104.1 103.3 102.6 102.0 BKF 101.6 100.4 99.6 98.9 98.3 97.9 98.864 99.594 100.952 101.383 102.039 BKF 102.668 103.198 103.015
60.0 2005 Survey
Distance (feet)
50.0 2004 Survey
40.0
80.0
90.0
2002 76.3 31.8 2.4 6.0
2003 64.9 33.1 2.0 5.5
100.0
2004 54.3 27.7 2.0 4.9
Photo of Cross-Section #3 - Looking Downstream
Area Width Mean Depth Max Depth
2006 Survey
70.0
Bankfull Elev. (approx.)
Cross-Section #3 -Pool Hominy Swamp Creek
2004 2004 Survey Station Elv. Notes 26.0 104.3 32.7 103.5 36.6 102.4 41.7 98.9 42.6 97.8 44.9 97.0 47.3 97.4 49.1 98.1 51.3 98.8 52.4 99.9 53.8 100.8 57.4 101.4 60.5 101.8 69.7 102.4 81.6 102.6 BKF 92.4 103.2 93.8 103.3 94.2 103.2
2005 61.8 24.0 2.6 4.8
2006 55.5 19.5 2.8 4.2
94.0
96.0
98.0
100.0
102.0
104.0
0.0
BKF
Notes
Hominy Swamp Creek #4 Pool 4/19/06 Cook, Stafford
2004 2004 Survey Elevation 104.7 104.3 103.2 101.7 99.4 98.2 97.4 96.7 95.5 95.3 95.8 98.2 102.5 102.9 104.7 104.9 104.9
106.0
Station 0.0 17.3 28.6 35.1 38.8 39.2 39.7 40.8 43.8 48.3 51.0 54.0 60.0 60.6 66.8 77.8 85.1
Project Name Cross Section Feature Date Crew
Elevation (feet - arbitrary)
10.0
Station 0.0 10.0 15.0 20.0 25.0 30.0 32.0 36.0 38.2 39.2 39.8 42.0 44.6 47.0 49.0 50.6 51.1 52.9 55.5 56.5 58.0 61.0 65.0 74.0 85.0 BKF
BKF
Notes
2004 Survey
20.0
2002 2002 Survey Elevation 104.7 104.6 104.4 104.0 103.5 102.8 102.5 100.8 99.2 98.2 97.8 96.9 96.2 96.4 96.8 97.3 98.5 98.8 100.7 101.5 102.4 104.1 104.7 105.0 104.9
2003 2003 Survey Elevation 104.7 104.8 104.4 103.0 102.2 100.4 99.7 97.7 96.7 95.4 95.6 96.0 96.5 96.5 98.7 101.4 102.5 104.0 104.7 104.9 Station 2.2 14.6 24.2 31.01 33.1 33.82 36.17 36.5 37.3 37.9 39.3 44.0 48.8 50.7 52.1 52.6 54.0 54.6 54.9 55.5 55.6 56.1 57.2 58.3 59.8 63.1 65.9 78.5
2005 2005 Survey Elevation 104.53 104.29 103.62 102.72 102.2 101.1 100.37 99.11 98.6 98.1 97.3 95.0 94.9 95.5 95.8 97.0 98.8 97.4 99.4 98.0 98.6 101.1 101.5 101.9 102.9 104.3 104.7 105.0 BKF
Notes
Station 0.0 15.1 24.6 27.64 32.14 33.3 35.56 36.65 37.5 38.1 39.7 44.8 49.9 53.7 56.0 58.0 59.4 60.1 62.0 66.3 75.6 91.1
60.0
2005 Survey
Distance (feet)
50.0
2003 Survey
40.0
2006 2006 Survey Elevation 104.7 104.375 103.364 102.864 102.163 101.472 100.664 100.052 99.141 98.3 97.9 96.9 95.5 97.9 98.1 100.6 101.3 101.7 102.5 104.4 104.8 104.6
Bankfull Elev. (approx.)
Cross-Section #4 -Pool Hominy Swamp Creek
BKF
Notes
2002 Survey
30.0
Station 0.0 0.4 14.3 28.7 33.4 34.5 36.9 37.4 40.6 44.5 46.5 49.8 51.7 51.9 53.8 55.5 57.7 61.5 65.6 85.1
2006 Survey
70.0
BKF
Notes
80.0
Area Width Mean Depth Max Depth
90.0
2002 88.3 23.5 3.8 6.0
2003 107.5 26.8 4.0 6.8
2005 119.5 25.4 4.7 7.3
100.0
2004 113.8 24.9 4.6 7.2
Photo of Cross-Section #4 - Looking Upstream
2006 109.0 23.8 4.6 6.7
B.5
LONGITUDINAL PLOTS AND RAW DATA TABLES
Hominy Swamp 2006 Longitudinal Profile 104
103
102
Elevation Feet
101
100
99
98
97
96
95
94 0
500
1000
1500
2000
Station As-Built
2006 Monitoring
2006 Water Surface
2006 Bankfull
Log Vane
Log Cross Vane
Root Wad
Rock Cross Vane
2006 Survey Hominy Swamp - EEP Project No. 180 TWG Station 3.64 18.24 27.57 32.90 45.64 67.08 75.98 89.01 102.13 113.65 124.09 140.65 154.58 165.49 176.74 187.93 206.14 211.44 220.27 226.65 238.64 250.77 264.29 277.55 278.43 290.97 300.21 311.70 323.46 340.54 362.17 371.39 381.39 396.27 412.58 433.83 455.31 481.77 499.70 504.15 517.70 536.34 543.43 552.78 564.35 594.32 604.80 624.74 645.04 663.78 678.33 694.98
WS Elevation Station 98.3 98.776 99.701 98.905 98.905 99.101 98.54 98.762 99.175 99.282 99.332 98.696 98.617 97.821 98.525 99.522 99.21 99.2 98.124 98.584 98.006 98.822 98.81 98.391 98.47 99.039 99.586 98.351 98.089 98.618 99.117 97.321 97.748 98.178 98.293 98.856 99.469 99.846 99.258 98.737 98.185 97.282 97.34 99.09 99.153 97.876 98.773 97.852 98.405 98.726 98.408 98.405
2.90 18.05 27.94 32.16 44.69 66.66 75.72 89.45 102.43 113.14 124.53 140.83 154.26 165.29 177.00 187.26 206.46 210.96 219.49 225.67 238.27 250.54 264.23 277.86 278.60 290.62 300.07 311.51 322.93 340.31 362.03 370.15 381.54 396.57 412.26 435.35 455.15 481.77 499.49 504.14 518.30 536.19 543.65 552.91 563.33 594.11 604.44 624.57 644.47 664.18 678.46 695.76
BKF Elevation Station 99.93 99.868 99.933 99.893 99.822 99.847 99.83 99.886 99.895 99.838 99.931 99.852 99.812 99.862 99.827 99.72 99.861 99.849 99.777 99.842 99.767 99.896 99.85 99.847 99.8 99.884 99.833 99.857 99.824 99.829 99.81 99.798 99.802 99.844 99.816 99.829 99.843 99.846 99.842 99.875 99.877 99.851 99.765 99.832 99.811 99.753 99.851 99.844 99.811 99.861 99.811 99.95
66.38 205.75 456.19 621.62 988.02 990.29 1158.10 1428.43 1487.08 1550.78 1638.20 1850.28 1987.85
Elevation 102.62 102.671 102.499 102.709 101.557 101.58 101.676 101.337 101.751 101.56 101.195 100.872 100.445
705.40 720.13 729.67 746.34 758.16 775.93 788.57 796.03 802.34 816.97 821.45 836.95 847.42 870.94 883.53 896.88 906.44 919.27 930.54 945.63 955.08 964.93 982.37 991.76 998.42 1004.84 1015.71 1031.93 1046.52 1063.35 1081.17 1105.49 1116.26 1126.99 1134.24 1148.99 1159.42 1180.15 1192.96 1204.11 1217.87 1230.83 1239.73 1246.78 1266.55 1282.35 1295.87 1306.07 1314.18 1321.23 1323.87 1330.93 1337.68 1345.07 1361.07 1369.19 1376.81 1386.99
98.577 98.342 98.364 98.206 98.085 98.301 99.296 98.701 97.489 98.724 98.568 98.042 98.809 98.87 97.951 98.053 98.703 98.74 98.162 97.465 97.257 97.671 97.953 97.836 97.446 97.414 98.139 98.436 98.426 98.362 98.239 98.442 97.8 97.838 98.361 97.34 97.333 98.169 98.061 97.913 97.66 98.15 97.398 98.012 97.849 97.162 97.293 97.385 98.147 98.964 98.403 98.177 97.887 96.654 96.441 96.822 96.603 97.548
705.18 719.68 728.80 746.82 775.40 788.45 796.46 802.46 816.52 820.81 836.41 847.71 870.49 883.31 896.71 906.31 919.11 929.78 945.89 955.78 965.34 982.09 991.98 997.86 1005.39 1015.89 1031.64 1046.71 1063.54 1081.92 1105.57 1116.53 1126.04 1133.77 1149.20 1160.37 1179.05 1192.93 1203.43 1216.71 1230.73 1239.17 1246.26 1265.86 1281.70 1295.67 1306.39 1314.75 1321.47 1323.64 1330.84 1337.76 1345.94 1359.70 1370.64 1374.67 1386.99 1393.55
99.837 99.78 99.787 99.842 99.825 99.77 99.096 99.084 99.138 99.092 99.094 99.021 99.073 98.97 99.127 99.175 99.16 99.091 99.046 98.997 99.097 99.129 99.114 99.111 99.05 99.041 99.047 99.072 99.027 99.051 99.052 98.997 99.075 98.987 98.979 99.015 99.069 99.121 99.034 99.044 99.05 99.049 99.081 99.075 99.072 99.113 99.077 99.115 99.065 98.965 98.917 98.899 98.845 98.682 98.795 98.74 98.881 98.878
1394.78 1410.28 1421.69 1441.19 1457.17 1463.44 1472.73 1480.83 1496.75 1506.16 1515.89 1524.49 1537.49 1545.79 1556.23 1572.21 1581.97 1592.53 1605.25 1613.40 1616.62 1618.55 1623.82 1629.98 1651.97 1661.02 1676.79 1684.37 1698.96 1713.21 1726.58 1739.46 1749.86 1758.80 1769.77 1792.96 1809.03 1814.88 1815.26 1825.26 1848.67 1858.70 1868.76 1873.49 1881.02 1893.40 1904.23 1919.75 1933.12 1946.45 1973.40 1985.64 2005.58 2027.68 2040.95 2050.22 2051.92 2064.86
97.643 97.54 97.816 98.433 98.073 97.178 96.389 96.001 96.642 97.037 97.127 97.502 97.811 98.067 97.404 97.323 97.102 97.665 97.765 98.308 98.731 97.687 96.8 95.494 95.19 96.804 97.769 98.224 97.526 96.665 96.998 96.728 96.339 96.779 97.403 97.162 97.537 98.064 97.735 96.804 96.476 96.038 96.79 95.859 95.223 95.337 95.467 95.771 95.957 96.018 96.248 96.237 96.827 97.109 96.614 96.544 96.391 95.351
1410.54 1422.06 1441.00 1457.68 1463.94 1472.39 1481.17 1497.08 1506.82 1517.22 1524.69 1538.37 1546.34 1556.67 1574.00 1583.07 1593.03 1604.77 1605.94 1613.15 1616.69 1618.42 1623.16 1630.81 1651.67 1660.92 1676.98 1684.66 1699.12 1712.51 1728.94 1739.69 1749.33 1758.82 1768.95 1793.88 1809.12 1814.90 1815.46 1825.72 1848.68 1858.53 1869.20 1873.15 1881.09 1892.68 1903.54 1914.88 1931.61 1946.21 1974.18 1985.86 2005.92 2027.85 2040.47 2050.09 2052.30 2065.62
98.865 98.913 98.916 89.891 98.889 98.827 98.916 98.852 98.867 98.908 98.9 98.853 98.901 98.909 98.841 98.903 98.878 98.945 98.894 98.881 98.928 98.402 98.443 98.387 98.404 98.374 98.414 98.419 98.412 98.391 98.427 98.423 98.264 98.451 98.239 98.425 98.396 98.393 98.113 98.107 98.059 97.987 98.009 97.928 97.799 97.876 97.929 97.919 97.834 97.936 97.766 97.721 97.844 97.863 97.782 97.746 97.808 97.705
2076.39 2092.83 2103.89 2107.54 2116.04
95.331 95.705 97.151 96.452 94.039
2076.45 2092.65 2104.25 2107.54 2115.41
97.714 97.615 97.741 97.566 97.659
B.6
PEBBLE COUNT PLOTS AND RAW DATA TABLES
total count: 100
-------------------------------------------------
Note: Cross-X1
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 8 8% 18% very fine sand 0.062 - 0.125 11 11% 24% 12 12% 36% fine sand 0.125 - 0.25 18 18% 54% medium sand 0.25 - 0.5 0.5 - 1 25 25% 79% coarse sand very coarse sand 1 -2 18 18% 97% 2 -4 6 6% 98% very fine gravel 4 -6 1 1% 99% fine gravel 6 8 0 0% 99% fine gravel 8 - 11 1 1% 100% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 percent finer than
silt/clay
0.1
Size (mm) 0.062 D16 0.29 D35 0.51 D50 0.78 D65 D84 1.5 2.8 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
sand
1
Size Distribution mean 0.3 dispersion 5.6 skewness -0.19
particle size (mm)
10
gravel
Cross Section 1 Pebble Count Distribution and Histogram
Year 5 Monitoring, Pebble Count Cross Section 1 Riffle Hominy Swamp Creek Stream Restoration Project Pebble Count Data Sheet Project No: D050515 Cross Section 1 11/1/2006 Station 15+60
100
cobble
1000
0 10000
5
10
15
20
25
30
# of particles
Type silt/clay 8% sand 84% gravel 8% cobble 0% boulder 0%
boulder
cumulative %
number of particles
total count: 100
-------------------------------------------------
Note: Cross-X2
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 6 6% 13% very fine sand 0.062 - 0.125 7 7% 14% 12 12% 26% fine sand 0.125 - 0.25 17 17% 43% medium sand 0.25 - 0.5 0.5 - 1 24 24% 67% coarse sand very coarse sand 1 -2 20 20% 87% 2 -4 9 9% 97% very fine gravel 4 -6 3 3% 98% fine gravel 6 8 1 1% 99% fine gravel 8 - 11 1 1% 100% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 percent finer than
silt/clay
0.1
Size (mm) 0.15 D16 0.38 D35 0.63 D50 0.97 D65 D84 1.9 4 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
sand
Bed Surface Pebble Count, ---
Year 5 Monitoring, Pebble Count Cross Section 2 Riffle Hominy Swamp Creek Stream Restoration Project Pebble Count Data Sheet Project No: D050515 Cross Section 2 11/1/2006 Station 14+41
1
Size Distribution mean 0.5 dispersion 3.6 skewness -0.07
particle size (mm)
10
gravel
100
cobble
silt/clay sand gravel cobble boulder
1000
boulder
cumulative %
Type 6% 80% 14% 0% 0%
0 10000
5
10
15
20
25
30
# of particles
number of particles
total count: 100
-------------------------------------------------
Note: Reach Wide
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 6 6% 13% very fine sand 0.062 - 0.125 8 8% 18% 14 14% 32% fine sand 0.125 - 0.25 12 12% 44% medium sand 0.25 - 0.5 0.5 - 1 23 23% 67% coarse sand very coarse sand 1 -2 18 18% 85% 2 -4 9 9% 94% very fine gravel 4 -6 8 8% 99% fine gravel 6 8 0 0% 99% fine gravel 8 - 11 1 1% 99% medium gravel 11 - 16 1 1% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 silt/clay
0.1
Size (mm) 0.14 D16 0.37 D35 0.68 D50 1.1 D65 D84 2.5 5.2 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
sand
1
10
gravel
100
cobble
Size Distribution mean 0.6 dispersion 4.3 skewness -0.05
particle size (mm)
Reach Wide Pebble Count Distribution and Histogram
Pebble Count Data Sheet Reach Wide Pebble Count
percent finer than
Year 5 Monitoring, Pebble Count Reach Wide Hominy Swamp Creek Stream Restoration Project Project No: D050515 11/1/2006
1000
Type 6% 75% 19% 0% 0%
0 10000
5
10
15
20
25
# of particles
silt/clay sand gravel cobble boulder
boulder
cumulative %
number of particles
total count: 100
-------------------------------------------------
Note: Cross-X2
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 4 4% 9% very fine sand 0.062 - 0.125 6 6% 14% 14 14% 28% fine sand 0.125 - 0.25 15 15% 43% medium sand 0.25 - 0.5 0.5 - 1 20 20% 63% coarse sand very coarse sand 1 -2 24 24% 87% 2 -4 11 11% 98% very fine gravel 4 6 2 2% 99% fine gravel 6 -8 3 3% 99% fine gravel 8 - 11 1 1% 99% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 percent finer than
0.1
Size (mm) 0.17 D16 0.42 D35 0.73 D50 1.2 D65 D84 2.1 4.9 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1
100
Size Distribution mean 0.6 dispersion 3.6 skewness -0.08
particle size (mm)
10
Cross Section 3 Pool Pebble Count Distribution and Histogram
Year 4 Monitoring, Pebble Count Cross Section 2 Riffle Hominy Swamp Creek Stream Restoration Project Pebble Count Data Sheet Project No: D050515 Cross Section 3 12/1/2005 Station 14+41
1000
cumulative %
silt/clay sand gravel cobble boulder
0%
Type 4% 79% 17% 0%
0 10000
5
10
15
20
25
30
# of particles
number of particles
total count: 100
-------------------------------------------------
Note: Cross-X1
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 7 7% 14% very fine sand 0.062 - 0.125 13 13% 20% 11 11% 31% fine sand 0.125 - 0.25 16 16% 47% medium sand 0.25 - 0.5 0.5 - 1 23 23% 70% coarse sand very coarse sand 1 -2 20 20% 90% 2 -4 7 7% 97% very fine gravel 4 -6 2 2% 99% fine gravel 6 -8 0 0% 99% fine gravel 8 - 11 1 1% 100% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 percent finer than
0.1
Size (mm) 0.078 D16 0.3 D35 0.55 D50 0.86 D65 D84 1.6 3.3 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1
100
Size Distribution mean 0.4 dispersion 5.0 skewness -0.17
particle size (mm)
10
Cross Section 1 Riffle Pebble Count Distribution and Histogram
Year 4 Monitoring, Pebble Count Cross Section 1 Riffle Hominy Swamp Creek Stream Restoration Project Pebble Count Data Sheet Project No: D050515 Cross Section 1 12/1/2005 Station 15+60
1000
cumulative %
Type silt/clay 7% sand 83% gravel 10% cobble 0% boulder 0%
0 10000
5
10
15
20
25
# of particles
number of particles
total count: 100
-------------------------------------------------
Note: Reach Wide
bedrock clay hardpan detritus/wood artificial
total particle count: 100
3.3
100% 0.1 0.3 0.5 0.9 1.6
Materia Size Range (mm) Count % Range %Cum. silt/clay 0 - 0.062 7 7% 14% very fine sand 0.062 - 0.125 6 6% 20% 0.125 0.25 12 12% 31% fine sand 13 13% 47% medium sand 0.25 - 0.5 0.5 - 1 24 24% 70% coarse sand very coarse sand 1 -2 19 19% 90% 2 -4 10 10% 97% very fine gravel 4 -6 7 7% 99% fine gravel 6 -8 1 1% 99% fine gravel 8 - 11 1 1% 100% medium gravel 11 - 16 0% 100% medium gravel 16 - 22 0% 100% coarse gravel 22 - 32 0% 100% coarse gravel very coarse gravel 32 - 45 0% 100% very coarse gravel 45 - 64 0% 100% small cobble 64 - 90 0% 100% medium cobble 90 - 128 0% 100% large cobble 128 - 180 0% 100% very large cobble 180 - 256 0% 100% small boulder 256 - 362 0% 100% small boulder 362 - 512 0% 100% medium boulder 512 - 1024 0% 100% large boulder 1024 - 2048 0% 100% 0% 100% very large boulder 2048 - 4096 0.1
Size (mm) 0.15 D16 0.43 D35 0.71 D50 1.1 D65 D84 2.5 5 D95
0% 0.01
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Bankfull Channel Pebble Count, ---
Pebble Count Data Sheet Reach Wide Pebble Count
percent finer than
Year 4 Monitoring, Pebble Count Reach Wide Hominy Swamp Creek Stream Restoration Project Project No: D050515 12/1/2005
1
100
Size Distribution mean 0.6 dispersion 4.1 skewness -0.06
particle size (mm)
10
1000
cumulative %
silt/clay sand gravel cobble boulder
Type 7% 74% 19% 0% 0%
0 10000
5
10
15
20
25
30
# of particles
number of particles
B.7 Table B.1 Categorical Stream Feature Visual Stability Assessment
Table B1. Visual Morphological Stability Assessment Project No. 180 (Hominy Swamp Creek) Feature Category
Metric (per As-built and reference baselines)
A. Riffles
1. Present? 2. Armor stable(e.g. no displacement)? 3. Facet grade appears stable? 4. Minimal evidence of embedding/fining? 5. Length appropriate? 1. Present? (e.g. not subject to severe aggradation or migration? 2. Sufficiently deep (Max Pool D:Mean Bkf>1.6) 3. Length Appropriate? 1. Upstream of meander bend (run/inflection) centering? 2. Downstream of meander (glide/inflection) centering? 1. Outer bend in state of limited/controlled erosion? 2. Of those eroding, # w/concomitant point bar formation? 3. Apparent Rc within spec? 4. Sufficient floodplain access and relief? 1. General channel bed aggradation areas (bar formation) 2. Channel bed degradation-areas of increasing downcutting or head cutting? 1. Free of back or arm scour? 2. Height appropriate? 3. Angle and geometry appear appropriate? 4. Free of piping or other structural failures? 1. Free of scour? 2. Footing stable?
B. Pools
C. Thalweg
D. Meanders
E. Bed General
F. Vanes
G. Wads/Boulders
(# Stable) Number Performing as Intended 2 2 2 2
Total number per Asbuilt 6 6 6 6
Total Number /feet in unstable state NA NA NA NA
% Perform in Stable Condition
Feature Perform. Mean or Total
33 33 33 33
2 NA*
6 NA*
NA NA*
33 NA*
NA*
NA*
NA*
NA*
NA* 12
NA* 20
NA* NA
NA* 60
NA*
12
20
NA
60
60%
11
20
NA
55
2
9
NA
22
20 18
20 20
NA NA
100 90
67%
NA
NA
5/85
NA
96%
NA
NA
0
NA
NA
25 28 28
31 31 31
NA NA NA
81 90 90
31
31
NA
100
90%
11 13
13 13
NA NA
85 100
93%
33%
*It is not clear in the as-built plans the total number of constructed pools. The channel is comprised mostly of pool sections, holding grade, and performing adequately.
APPENDIX C – ADDITIONAL SITE PHOTOS
C.1
BEAVER INFESTATION PHOTOS
Hominy Swamp Beaver Damage Photos Beaver Damage Photo 1
Beaver Damage Photo 2.
Beaver Damage Photo 3.
Beaver Damage Photo 4.
Beaver Damage Photo 5.
Beaver Damage Photo 6.
