may 20, 2003 - ntpep is verified to be 90% (± 3%) of proctor standard density using astm d 2937...

Large-Scale Channel Erosion Testing

(ASTM D 6460) (Modified procedure used for vegetated channel tests)

of

Western Excelsior’s

PP5-10, Double Net Poly Fiber Matting

over

Loam

May 2015

Submitted to:

AASHTO/NTPEP

444 North Capitol Street, NW, Suite 249

Washington, D.C. 20001

Attn: Keith Platte, NTPEP

[email protected]

Submitted by:

TRI/Environmental, Inc.

9063 Bee Caves Road

Austin, TX 78733

C. Joel Sprague

Project Manager

May 31, 2015

Mr. Keith Platte AASHTO/NTPEP

444 North Capitol Street, NW, Suite 249

Washington, D.C. 20001

E-mail: [email protected]

Subject: Channel Testing over Loam of Western Excelsior’s PP5-10, Double Net Poly Fiber

Matting, manufactured for Western Excelsior

Dear Mr. Platte:

This letter report presents the results for large-scale channel erosion tests performed on PP5-10,

Double Net Poly Fiber Matting, over Loam. Included are data developed for target hydraulic

shears ranging from 0.5 to 3+ psf (30 minute flow durations) for the unvegetated condition and

from 1 to 13+ psf (60 minute flow durations) for the vegetated condition. A failure criteria of

0.5-inch average soil loss was used. All testing work was performed in general accordance with

the ASTM D 6460, Standard Test Method for Determination of Rolled Erosion Control Product

(RECP) Performance in Protecting Earthen Channels from Stormwater-Induced Erosion. The

procedure was modified to use only single replicates when testing vegetated channels.

Generated results were used to develop the following permissible or limiting shear (τlimit) and

limiting velocity (Vlimit) for the tested material:

PP5-10, Double Net Poly Fiber Matting & 3.8 staples/sy

Product Unvegetated

Condition

6+ Week Vegetated

Condition*

1+ Year Vegetated

Condition*

Actual growth period, wks 0 6+ 52+

τlimit (psf) 2.85 8.5+ 11+

Vlimit (ft/sec) 11.5 19+ 22+

“*” = ASTM D 6460 requires that three test replicates be performed using identical procedures to obtain an

average threshold of performance. Thus, the results of vegetated testing, being single replicates of each condition,

cannot be considered as an average threshold of performance.

TRI is pleased to present this final report. Please feel free to call if we can answer any questions

or provide any additional information.

Sincerely,

C. Joel Sprague, P.E.

Senior Engineer

Geosynthetics Services Division

cc: Jay Sprague - TRI

PP5-10, Double Net Poly Fiber Matting, over Loam

Channel Erosion Testing

May 31, 2015

CHANNEL TESTING REPORT

PP5-10, Double Net Poly Fiber Matting,

over Loam TESTING EQUIPMENT AND PROCEDURES

Overview of Test and Apparatus

TRI/Environmental, Inc.'s (TRI's) large-scale channel erosion testing facility is located at the

Denver Downs Research Farm in Anderson, SC. The large-scale testing is performed in a

rectangular flume having a 10% slope (unvegetated condition) or 20% slope (vegetated

condition) using a loamy soil test section. The concentrated flow is produced by raising gates to

allow gravity flow from an adjacent pond. At least four sequential, increasing flows are applied

to each test section for 30 minutes (unvegetated condition) or 1 hour (vegetated condition) each

to achieve a range of hydraulic shear stresses in order to define the permissible, or limiting, shear

stress, τlimit, which is the shear stress necessary to cause an average of 0.5 inch of soil loss over

the entire channel bottom. Testing is performed in accordance with ASTM D 6460, though the

procedure was modified to use only single replicates when testing vegetated channels. Tables

and graphs of shear versus soil loss are generated from the accumulated data.

Rolled Erosion Control Product (RECP)

The following information and index properties were determined from the supplied product.

Table 1. Tested Product Information & Index Properties

Product Information and Index Property / Test Units Sampled Product

Product Identification - PP5-10

Manufacturer - Western Excelsior

Manufacturing Plant Location - Macon, GA

Lot number of sample - -

Fiber - 100% Synthetic

Netting Openings in 0.6 x 0.6 (approx)

Stitching Spacing in 2.0 (approx)

Tensile Strength MD x XD (ASTM D 6818)* lb/in 28.7 x 15.1

Tensile Elongation MD x XD (ASTM D 6818)* % 24.9 x 38.4

Thickness (ASTM D 6525)* mils 396

Light Penetration (ASTM D 6567)* % cover 75.7

Specific Gravity (ASTM D 792, Method A) – Net

Only* g/cm

3 0.908

Mass / Unit Area (ASTM D 6475)* oz/sy 10.49 *Values from Independent Testing of Randomly Sampled Product; **Product has a woven structure.



May 31, 2015

Test Soil

The test soil used in the test plots had the following characteristics.

Table 2. TRI-Loam Characteristics

Soil Characteristic Test Method Value

% Gravel

ASTM D 422

0

% Sand 45

% Silt 35

% Clay 20

Liquid Limit, % ASTM D 4318

41

Plasticity Index, % 8

Soil Classification USDA Loam

Soil Classification USCS Sandy silty clay (ML-CL)

Preparation of the Test Channels

Compaction is verified to be 90% (± 3%) of Proctor Standard density using ASTM D 2937

(drive-cylinder method). The test channels undergo a “standard” preparation procedure prior to

each test. First, any rills or depressions resulting from previous testing are filled in with test soil.

The soil surface is replaced to a depth of 1 inch and groomed to create a channel bottom that is

level side-to-side and at a smooth slope top-to-bottom. Finally, a vibrating plate compactor is

run over the renewed channel surface. If a vegetated condition is to be tested, grass seed (tall

fescue) is applied to the plot at the rate of 500 seeds per square foot. The submitted erosion

control product is then installed using the anchors and anchorage pattern directed by the client.

Installation of Erosion Control Product in Test Channel

As noted, the submitted erosion control product is installed as directed by the client. For the

tests reported herein, the erosion control product was anchored using a “diamond” anchorage

pattern consisting of 2”x 8” steel staples to create an anchorage density of approximately 3.8

anchors per square yard.

Specific Test Procedure

Immediately prior to testing, the initial soil surface elevation readings are made at predetermined

cross-sections. The channel is then exposed to sequential 30-minute (unvegetated condition) or

1-hour (vegetated condition) flows having target hydraulic shear stresses selected to create at

least three flow events below and one flow event above the shear stress level that results in a

cumulative average soil loss of ½-inch. During the testing, flow depth and corresponding flow

measurements are taken at the predetermined cross-section locations. Between flow events, the

flow is stopped and soil surface elevation measurements are made to facilitate calculation of soil

loss. The flow is then restarted at the next desired flow (shear) level. Pictures of channel flows

and resulting soil loss are shown in Figures 6 thru 12.



May 31, 2015

Figure 1. Typical 10% (Unvegetated Shear)

Flumes on Left; 20% Flumes on Right

Figure 2. 6+ Week Vegetated Shear in 20%

Flumes

Figure 3. Typical 20% Flume Set Up for 1+

Year Vegetated Shear Plots

Figure 4. Unvegetated RECP

Figure 5. 6+ Week Vegetated RECP

Figure 6. 1+ Year Vegetated RECP



May 31, 2015

Figure 7. Typical Flow in Unvegetated

Channel

Figure 8. Typical Flow in 6+ Week

Vegetated Channel

Figure 9. Typical Flow in 1+ Year

Vegetated Channel

Figure 10. Unvegetated Channel after Test

with RECP Removed (typical)

Figure 11. 6+ Week Vegetated Channel after

Test (typical)

Figure 12. 1+ Year Vegetated Channel after

Test (typical)



May 31, 2015

TEST RESULTS Average soil loss and the associated hydraulic shear calculated from flow and depth measurements

made during the testing are the principle data used to determine the performance of the product

tested. This data is entered into a spreadsheet that transforms the flow depth and velocity into an

hydraulic shear stress and the soil loss measurements into an average Clopper Soil Loss Index

(CSLI). Measured and calculated data is summarized in Table 3. A graph of shear versus soil loss

for the protected condition is shown in Figure 13. The associated velocities and time of vegetation

growth are plotted in Figures 14 and 15, respectively. The graphs include the best regression line

fit to the test data to facilitate a determination of the limiting shear stress, τlimit,, and limiting

velocity, Vlimit,. The 0.5-inch intercept values are provided in Table 4.

Table 3. Summary Data Table – Protected Test Reach

Test ID

(Channel No. - Shear

Level)

Actual

Growth

Period

(wks)

Flow

depth*

(in)

Flow

velocity

(fps)

Flow

(cfs)

Manning’s

roughness, n

Max Bed

Shear

Stress (psf)

Cumm.

CSLI (in)

C1-S1, Unvegetated

0

1.10 2.82 0.51 0.034 0.56 0.03

C1-S2, Unvegetated 1.84 4.54 1.39 0.031 0.95 0.09

C1-S3, Unvegetated 3.28 7.39 4.05 0.026 1.75 0.16

C1-S4, Unvegetated 4.71 9.33 7.34 0.025 2.42 0.29

C1-S5, Unvegetated 6.31 10.82 11.37 0.025 3.04 0.45

C2-S1, Unvegetated

0

1.48 3.51 0.87 0.033 0.77 0.01

C2-S2, Unvegetated 2.23 5.62 2.08 0.027 1.13 0.03

C2-S3, Unvegetated 3.62 7.92 4.76 0.026 1.72 0.15

C2-S4, Unvegetated 6.01 10.19 10.19 0.025 2.77 0.41

C2-S5, Unvegetated 7.92 13.25 17.46 0.025 3.08 0.59

C3-S1, Unvegetated

0

1.39 3.40 0.79 0.033 0.71 0.03

C3-S2, Unvegetated 2.29 5.85 2.23 0.026 1.20 0.13

C3-S3, Unvegetated 4.53 9.64 7.28 0.025 2.23 0.31

C3-S4, Unvegetated 7.08 11.66 13.74 0.026 3.16 0.89

S1, 6+ Wk Vegetated

6

3.69 7.42 4.56 0.042 4.09 0.04

S2, 6+ Wk Vegetated 5.84 12.88 12.55 0.032 6.48 0.12

S3, 6+ Wk Vegetated 7.92 16.00 21.12 0.029 7.09 0.27 #S4, 6+ Wk Vegetated 10.23 19.27 32.85 0.027 8.63 0.48

S1, 1+ Yr Vegetated

52

2.73 5.94 2.70 0.043 2.89 0.03

S2, 1+ Yr Vegetated 5.28 11.53 10.15 0.033 5.37 0.08

S3, 1+ Yr Vegetated 7.70 16.08 20.63 0.030 7.77 0.14 #S4, 1+ Yr Vegetated 10.61 21.72 38.39 0.027 10.82 0.23

# Control volume selected to assure that energy grade line maintains a linear behavior and slope agreement with

other tests in the series. * Flow depths measured near the end of the 30 minute test period are used in the calculations.

Using the test procedure and data evaluation technique described herein, the limiting shear stress

shown in Table 4 was determined using the following equation:

τ0 = γ/2(y1 + y2)sinΘB + 1/L[γ/2(y12 - y2

2)cosΘB – ρq

2(1/y2 – 1/y1)]

Where:

τ0 = shear stress (Pa),

γ = unit weight of water (N/m3),

y1 = upstream flow depth (m),

y2 = downstream flow depth (m),

ΘB = angle of bed slope (degrees),

ρ = density of water (kg/m),

q = unit discharge (cms/m), and

L = length of control volume (m).



May 31, 2015

Table 4. PP5-10, Double Net Poly Fiber Matting & 3.8 staples/sy

Product Unvegetated

Condition

6+ Week Vegetated

Condition*

1+ Year Vegetated

Condition*

Actual growth period, wks 0 6+ 52+

τlimit (psf) 2.85 8.5+ 11+

Vlimit (ft/sec) 11.5 19+ 22+ “*” = ASTM D 6460 requires that three test replicates be performed using identical procedures to obtain an average threshold of performance.

Thus, the results of vegetated testing, being single replicates of each condition, cannot be considered as an average threshold of performance.

y = 0.0376x3 - 0.0855x2 + 0.114xR² = 0.9091

y = 0.0003x3.3626

R² = 0.9568y = 0.0051x1.6103

R² = 0.9937

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Cu

mm

ula

tive

So

il L

oss (

CS

LI)

, in

Shear, psf

Limiting Shear via ASTM D 6460 PP5-10 at 3.8 staples/sy

Unvegetated 6-Wk Vegetated 52-Wk Vegetated Poly. (Unvegetated) Power (6-Wk Vegetated) Power (52-Wk Vegetated)

Limiting Shear = 11+ psfLimiting Shear = 8.5+ psfLimiting Shear = 2.85 psf

Figure 13. Shear Stress vs. Soil Loss – Tested Product

y = 0.0123x1.4459

R² = 0.9802y = 0.0097x1.1947

R² = 0.981

y = 0.0016x1.8301

R² = 0.9994

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30

Cu

mm

ula

tive

So

il L

oss (

CS

LI)

, in

Velocity, ft/sec

Limiting Velocity via ASTM D 6460

PP5-10 at 3.8 staples/s

Unvegetated 6-Wk Vegetated 52-Wk Vegetated Power (Unvegetated) Power (6-Wk Vegetated) Power (52-Wk Vegetated)

Limiting Velocity= 22+ ft/secLimiting Velocity= 19+ ft/secLimiting Velocity= 11.5 ft/sec

Figure 14. Velocity vs. Soil Loss – Tested Product



May 31, 2015

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66

Pe

rmis

sib

le S

he

ar,

psf

Time of Vegetation Growth, weeks

Vegetation Loss vs Time of Vegetation Growth via ASTM D 6460

PP5-10 at 3.8 staples/sy

Figure 15. Shear Stress vs. Time of Vegetation Growth – Tested Product

y = 0.0399x-0.277

R² = 0.9883

y = 0.0003x2 - 0.0061x + 0.0584R² = 0.9714

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

0.050

0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00 16.00

Mannin

g's

n

Water Depth, in

Manning's n vs. Water DepthPP5-10 at 3.8 staples/sy

Unvegetated 6-Wk Vegetated 52-Wk Vegetated All Vegetated Channels Power (Unvegetated) Poly. (All Vegetated Channels)

Figure 16. Flow Depth vs. Manning’s “n” – Tested Product



May 31, 2015

y = -0.1006x + 196.83 y = -0.1011x + 196.9 y = -0.1003x + 196.84

y = -0.1068x + 197.15 y = -0.0999x + 197.25 y = -0.0985x + 197.24

y = -0.0959x + 197.66 y = -0.0968x + 197.8 y = -0.094x + 198.28

y = -0.0879x + 198.21 y = -0.0749x + 198.4 y = -0.082x + 198.98

y = -0.067x + 198.74 y = -0.0834x + 199.74

190

191

192

193

194

195

196

197

198

199

200

0 2 4 6 8 10 12 14 16 18 20

Ele

va

tio

n R

ela

tive

to

Be

nch

ma

rk, ft

X-Section (ft along test reach)

Energy Grade Lines - All Shear LevelsPP5-10; 3.8 Anchors/SY

Shear Level 4

Shear Level 3

Shear Level 2

Shear Level 1

Shear Level 5

Channel 1 Channel 2 Channel 3

Figure 17a. Energy Grade Lines – All Channels, Unvegetated Shears – Tested Product

y = -0.2123x + 197.9 y = -0.2138x + 197.54

y = -0.2042x + 199.72 y = -0.1992x + 199.11

y = -0.1678x + 200.97 y = -0.1896x + 201.24

y = -0.1504x + 202.8 y = -0.1874x + 205.12

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

0 2 4 6 8 10 12 14 16 18 20

Ele

va

tio

n R

ela

tive

to

Be

nch

ma

rk, ft

X-Section (ft along test reach)

Energy Grade Lines - All Shear LevelsPP5-10 at 3.8 staples/sy

Shear Level 4

Shear Level 3

Shear Level 2

Shear Level 1

6-Wk Channel 1-Yr Channel

Figure 17b. Energy Grade Lines – All Channels, Vegetated Shears – Tested Product



May 31, 2015

y = -0.0003x3 + 0.002x2 - 0.0078x + 1R² = 0.9902

y = 0.0002x3 - 0.0039x2 + 0.005x + 1R² = 0.9648

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

90.0%

100.0%

0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0

Pe

rce

nt o

f In

itia

l V

ege

tatio

n a

fte

r S

he

ar

Str

ess, %

Shear, psf

Vegetation Loss vs Shear via ASTM D 6460

PP5-10 at 3.8 staples/sy

6-Week Vegetated 52-Week Vegetated Poly. (6-Week Vegetated) Poly. (52-Week Vegetated)

Initial 6-Week Vegetative Stand = 320 stems/ft2

Initial 52-Week Vegetative Stand = 272 stems/ft2

Figure 18. Vegetation vs. Shear Stress – Tested Product

y = -7.4065x3 + 22.361x2 + 4.1214xR² = 0.9998

y = 0.8879x0.7093

R² = 0.9595

y = 0.0005x3 + 0.0014x2 + 0.0185xR² = 0.9996

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00

Cu

mm

ula

tive

So

il L

oss (

CS

LI)

, in

Shear, psf

Limiting Shear via ASTM D 6460Control Runs

Unvegetated With 6 Weeks of Vegetation With 61 Weeks of Vegetation

Poly. (Unvegetated) Power (With 6 Weeks of Vegetation) Poly. (With 61 Weeks of Vegetation)

Limiting Shear = 0.075 Limiting Shear = 8.0 psfLimiting Shear = 0.5 psf

Figure 19. Shear Stress vs. Soil Loss – Controls (Vegetation Only / No RECP)



May 31, 2015

Figure 20. Typical 6+ Week “Control”

Vegetation-Only – Before Testing

Figure 21. Typical 6+ Week “Control”

Vegetation-Only – After Testing

Figure 22. Typical 1+ Year “Control”

Vegetation-Only – Before Testing

Figure 23. Typical 1+ Year “Control”

Vegetation-Only – After Testing

CONCLUSIONS

Rectangular channel (flume) tests were performed in accordance with ASTM D 6460 using

Loam soil protected with an RECP. Three replicates of the unvegetated condition and one

replicate each of the 6+ week and 1+ year vegetated conditions were performed. Testing in a

rectangular (vertical wall) channel was conducted to achieve increasing shear levels in an

attempt to cause at least 0.5-inch of soil loss. Figure 13 shows the maximum bottom shear stress

and associated soil loss from each flow event. Figure 14 presents the velocity versus soil loss.

Figure 15 relates the permissible shear stress to the length of time the vegetation had been

allowed to grow. Figure 16 relates channel liner roughness (Manning’s “n”) to flow depth.

Together, this data describes the relevant performance characteristics of the tested RECP.

It is important to note that ASTM D 6460, the procedure used to guide the testing reported

herein, requires that three test replicates be performed using identical procedures to obtain an

average threshold of performance. Thus, the results of the testing of vegetated channels reported

herein, being single replicates of each condition, cannot be considered as an average threshold of

performance.

The data in Figures 17a, 17b, 18 and 19, the calculated energy grade lines for each channel and

shear level, the retained vegetation at each shear level, and the control condition shear stress vs.

soil loss relationships, are included to provide a reference for the reported test results.



May 31, 2015

Appendix

APPENDIX A – RECORDED DATA

Test Record Sheets

(Note: Unvegetated Test Record Sheets are in a Separate Report)

Date: 7/8/14 RECP: Lot #:

Slope: 20% Start Time: 9:45 AM Channel # Shear # Start Time:11:10 AM Channel # Shear # Start Time: 1:44 PM Channel # Shear # Start Time: 3:18 PM Channel # Shear #

Width: 2 End Time: 10:45 AM 2 1 End Time: 12:10 AM 2 2 End Time: 2:44 PM 2 3 End Time: 4:18 PM 2 4

4.56 12.55 21.12 32.85

To original Surface Elev, cm 71.5 71.2 71.3 Avg. Avg. Avg. Avg.

To eroded Surface Elev, cm 71.5 71.4 71.3 71.4 71.6 71.2 71.3 71.4 71.8 72.0 71.5 71.8 72.6 72.0 71.9 72.2

Soil Loss / Gain, in 0.00 -0.08 0.00 -0.01 -0.04 0.00 0.00 -0.01 -0.12 -0.31 -0.08 -0.12 -0.43 -0.31 -0.24 -0.28

CSLI, in 0.00 -0.08 0.00 -0.01 -0.04 0.00 0.00 -0.01 -0.12 -0.31 -0.08 -0.12 -0.43 -0.31 -0.24 -0.28

Velocity, ft/s 0.0 7.8 0.0 12.9 0.0 15.5 0.0 18.4

Distance to Water Surface, cm 62.5 62.5 56.5 56.5 51.0 51.0 45.0 45.0

Flow, cfs Depth, in Flow, cfs Depth, in Flow, cfs Depth, in Flow, cfs Depth, in

4.56 3.50 12.55 5.85 21.12 8.18 32.85 10.70



Soil Loss / Gain, in -0.04 -0.08 0.00 -0.03 -0.08 -0.04 -0.04 -0.05 -0.12 -0.08 -0.08 -0.08 -0.35 -0.35 -0.39 -0.31

CSLI, in -0.04 -0.08 0.00 -0.03 -0.08 -0.04 -0.04 -0.05 -0.12 -0.08 -0.08 -0.08 -0.35 -0.35 -0.39 -0.31

Velocity, ft/s 0.0 7.5 0.0 12.1 0.0 15.4 0.0 18.2



4.56 3.64 12.55 6.21 21.12 8.22 32.85 10.85



Soil Loss / Gain, in 0.00 -0.04 0.00 -0.01 -0.04 -0.16 0.00 -0.04 -0.31 -0.28 -0.16 -0.20 -0.59 -0.43 -0.28 -0.36

CSLI, in 0.00 -0.04 0.00 -0.01 -0.04 -0.16 0.00 -0.04 -0.31 -0.28 -0.16 -0.20 -0.59 -0.43 -0.28 -0.36

Velocity, ft/s 0.0 7.9 0.0 13.2 0.0 15.7 0.0 19.0



4.56 3.48 12.55 5.70 21.12 8.04 32.85 10.39



Soil Loss / Gain, in -0.08 -0.08 -0.04 -0.05 -0.24 -0.08 -0.12 -0.13 -0.28 -0.12 -0.20 -0.18 -0.59 -0.28 -0.31 -0.35

CSLI, in -0.08 -0.08 -0.04 -0.05 -0.24 -0.08 -0.12 -0.13 -0.28 -0.12 -0.20 -0.18 -0.59 -0.28 -0.31 -0.35

Velocity, ft/s 0.0 7.8 0.0 12.8 0.0 15.8 0.0 18.9



4.56 3.52 12.55 5.88 21.12 8.02 32.85 10.42



Soil Loss / Gain, in 0.00 -0.08 0.00 -0.01 -0.20 0.00 0.00 -0.07 -0.39 -0.51 -0.04 -0.23 -0.59 -0.87 -0.31 -0.45

CSLI, in 0.00 -0.08 0.00 -0.01 -0.20 0.00 0.00 -0.07 -0.39 -0.51 -0.04 -0.23 -0.59 -0.87 -0.31 -0.45

Velocity, ft/s 0.0 7.6 0.0 13.2 0.0 15.8 0.0 19.2



4.56 3.60 12.55 5.72 21.12 8.02 32.85 10.26



Soil Loss / Gain, in -0.08 -0.12 -0.08 -0.07 -0.35 -0.39 -0.12 -0.22 -1.06 -0.71 -0.28 -0.56 -1.34 -0.94 -0.67 -0.83

CSLI, in -0.08 -0.12 -0.08 -0.07 -0.35 -0.39 -0.12 -0.22 -1.06 -0.71 -0.28 -0.56 -1.34 -0.94 -0.67 -0.83

Velocity, ft/s 0.0 7.3 0.0 13.0 0.0 16.2 0.0 19.5



4.56 3.77 12.55 5.77 21.12 7.82 32.85 10.09



Soil Loss / Gain, in 0.00 -0.08 -0.04 -0.03 -0.04 -0.24 -0.08 -0.08 -0.63 -0.98 -0.12 -0.41 -1.02 -1.10 -0.55 -0.71

CSLI, in 0.00 -0.08 -0.04 -0.03 -0.04 -0.24 -0.08 -0.08 -0.63 -0.98 -0.12 -0.41 -1.02 -1.10 -0.55 -0.71

Velocity, ft/s 0.0 7.2 0.0 13.3 0.0 16.4 0.0 19.7



4.56 3.82 12.55 5.67 21.12 7.70 32.85 9.99



Soil Loss / Gain, in 0.00 -0.08 0.00 -0.01 -0.04 -0.04 -0.04 -0.03 -0.39 -0.28 -0.08 -0.20 -0.75 -0.39 -0.91 -0.62

CSLI, in 0.00 -0.08 0.00 -0.01 -0.04 -0.04 -0.04 -0.03 -0.39 -0.28 -0.08 -0.20 -0.75 -0.39 -0.91 -0.62

Velocity, ft/s 0.0 7.6 0.0 13.0 0.0 17.7 0.0 20.2



4.56 3.61 12.55 5.79 21.12 7.18 32.85 9.78



Soil Loss / Gain, in 0.00 -0.12 0.00 -0.02 -0.04 -0.08 -0.04 -0.04 -0.12 -0.43 -0.20 -0.18 -0.59 -0.71 -0.59 -0.51

CSLI, in 0.00 -0.12 0.00 -0.02 -0.04 -0.08 -0.04 -0.04 -0.12 -0.43 -0.20 -0.18 -0.59 -0.71 -0.59 -0.51

Velocity, ft/s 0.0 7.1 0.0 13.3 0.0 17.6 0.0 20.3



4.56 3.86 12.55 5.64 21.12 7.22 32.85 9.72



Soil Loss / Gain, in -0.12 -0.12 -0.08 -0.09 -0.43 0.04 -0.59 -0.33 -0.67 -0.43 -0.79 -0.56 -1.57 -1.34 -1.57 -1.27

CSLI, in -0.12 -0.12 -0.08 -0.09 -0.43 0.00 -0.59 -0.34 -0.67 -0.43 -0.79 -0.56 -1.57 -1.34 -1.57 -1.27

Velocity, ft/s 0.0 7.2 0.0 12.6 0.0 17.4 0.0 20.3



4.56 3.79 12.55 5.98 21.12 7.27 32.85 9.71



Soil Loss / Gain, in 0.00 -0.08 -0.08 -0.04 -0.04 -0.20 -0.20 -0.11 -0.31 -0.83 -0.79 -0.51 -0.71 -0.87 -1.57 -0.91

CSLI, in 0.00 -0.08 -0.08 -0.04 -0.04 -0.20 -0.20 -0.11 -0.31 -0.83 -0.79 -0.51 -0.71 -0.87 -1.57 -0.91

Velocity, ft/s 0.0 6.8 0.0 12.4 0.0 16.8 0.0 20.7



4.56 4.02 12.55 6.08 21.12 7.56 32.85 9.50

7

Calculations

8

Calculations

9

Calculations

4

Calculations

5

Calculations

6

Calculations

2

Calculations

10

Calculations

11

Calculations

3

Calculations

Cross-Section Measurements Measured Volumetric Flow, cfs: Measured Volumetric Flow, cfs: Measured Volumetric Flow, cfs: Measured Volumetric Flow, cfs:

PP5-10 Anchorage: 3.8 pins / sy 6-wk Vegetation

1

Calculations

Date: 5/21/15 RECP: Lot #:

Slope: 20% Start Time: 9:08 AM Channel # Shear # Start Time:10:24 AM Channel # Shear # Start Time: 11:42 Channel # Shear # Start Time: 1:00 PM Channel # Shear #

Width: 2 End Time: 10:08 AM 1 1 End Time: 11:24 AM 1 2 End Time: 12:42 1 3 End Time: 2:47 PM 1 4

2.60 10.16 20.98 39.61



Loss/Gain, sq.in./in. width 0.00 -0.04 -0.08 -0.03 -0.04 -0.04 -0.16 -0.07 -0.16 -0.20 -0.16 -0.14 -0.35 -0.20 -0.20 -0.22

CSLI, sq.in./in. width 0.00 -0.04 -0.08 -0.03 -0.04 -0.04 -0.16 -0.07 -0.16 -0.20 -0.16 -0.14 -0.35 -0.20 -0.20 -0.22

Velocity, ft/s 0.0 5.7 0.0 11.4 0.0 15.7 0.0 21.5



2.60 2.76 10.16 5.35 20.98 8.01 39.61 11.04



Loss/Gain, sq.in./in. width 0.00 0.00 0.00 0.00 0.00 0.00 -0.16 -0.05 -0.08 -0.04 -0.16 -0.09 -0.28 -0.08 -0.20 -0.17

CSLI, sq.in./in. width 0.00 0.00 0.00 0.00 0.00 0.00 -0.16 -0.05 -0.08 -0.04 -0.16 -0.09 -0.28 -0.08 -0.20 -0.17

Velocity, ft/s 8.3 8.3 11.5 11.5 13.1 13.1 14.4 14.4



3.67 2.65 10.09 5.26 17.16 7.86 26.17 10.91



Loss/Gain, sq.in./in. width -0.04 0.00 -0.16 -0.07 -0.16 -0.16 -0.20 -0.14 -0.20 -0.20 -0.24 -0.18 -0.28 -0.24 -0.28 -0.22

CSLI, sq.in./in. width -0.04 0.00 -0.16 -0.07 -0.16 -0.16 -0.20 -0.14 -0.20 -0.20 -0.24 -0.18 -0.28 -0.24 -0.28 -0.22

Velocity, ft/s 0.0 5.6 0.0 11.6 0.0 16.1 0.0 22.3



2.60 2.77 10.16 5.24 20.98 7.83 39.61 10.64



Loss/Gain, sq.in./in. width -0.04 -0.08 -0.08 -0.05 -0.12 -0.20 -0.08 -0.10 -0.20 -0.28 -0.16 -0.16 -0.31 -0.35 -0.24 -0.24

CSLI, sq.in./in. width -0.04 -0.08 -0.08 -0.05 -0.12 -0.20 -0.08 -0.10 -0.20 -0.28 -0.16 -0.16 -0.31 -0.35 -0.24 -0.24

Velocity, ft/s 0.0 5.8 0.0 11.4 0.0 16.1 0.0 22.0



2.60 2.70 10.16 5.33 20.98 7.80 39.61 10.81



Loss/Gain, sq.in./in. width -0.12 0.00 0.00 -0.04 -0.28 -0.12 -0.08 -0.14 -0.31 -0.16 -0.16 -0.18 -0.35 -0.20 -0.24 -0.23

CSLI, sq.in./in. width -0.12 0.00 0.00 -0.04 -0.28 -0.12 -0.08 -0.14 -0.31 -0.16 -0.16 -0.18 -0.35 -0.20 -0.24 -0.23

Velocity, ft/s 0.0 5.4 0.0 11.4 0.0 16.0 0.0 22.4



2.60 2.87 10.16 5.35 20.98 7.89 39.61 10.62



Loss/Gain, sq.in./in. width -0.04 -0.12 0.00 -0.03 -0.16 -0.20 -0.12 -0.12 -0.20 -0.20 -0.16 -0.15 -0.31 -0.31 -0.28 -0.25

CSLI, sq.in./in. width -0.04 -0.12 0.00 -0.03 -0.16 -0.20 -0.12 -0.12 -0.20 -0.20 -0.16 -0.15 -0.31 -0.31 -0.28 -0.25

Velocity, ft/s 0.0 5.7 0.0 11.3 0.0 16.2 0.0 22.3



2.60 2.73 10.16 5.39 20.98 7.78 39.61 10.66



Loss/Gain, sq.in./in. width 0.00 0.00 -0.04 -0.01 -0.16 -0.04 -0.04 -0.07 -0.16 -0.12 -0.08 -0.10 -0.43 -0.24 -0.12 -0.22

CSLI, sq.in./in. width 0.00 0.00 -0.04 -0.01 -0.16 -0.04 -0.04 -0.07 -0.16 -0.12 -0.08 -0.10 -0.43 -0.24 -0.12 -0.22

Velocity, ft/s 0.0 6.1 0.0 11.6 0.0 16.5 0.0 22.5



2.60 2.55 10.16 5.25 20.98 7.65 39.61 10.55



Loss/Gain, sq.in./in. width 0.00 0.00 0.00 0.00 -0.04 -0.04 0.00 -0.02 -0.12 -0.12 0.00 -0.06 -0.20 -0.20 -0.16 -0.15

CSLI, sq.in./in. width 0.00 0.00 0.00 0.00 -0.04 -0.04 0.00 -0.02 -0.12 -0.12 0.00 -0.06 -0.20 -0.20 -0.16 -0.15

Velocity, ft/s 0.0 5.7 0.0 11.3 0.0 16.6 0.0 22.5



2.60 2.72 10.16 5.38 20.98 7.60 39.61 10.58



Loss/Gain, sq.in./in. width 0.00 0.00 -0.08 -0.03 0.00 -0.08 -0.08 -0.04 0.00 -0.16 -0.31 -0.13 -0.39 -0.24 -0.35 -0.29

CSLI, sq.in./in. width 0.00 0.00 -0.08 -0.03 0.00 -0.08 -0.08 -0.04 0.00 -0.16 -0.31 -0.13 -0.39 -0.24 -0.35 -0.29

Velocity, ft/s 0.0 5.7 0.0 11.9 0.0 16.4 0.0 22.6



2.60 2.73 10.16 5.12 20.98 7.66 39.61 10.51



Loss/Gain, sq.in./in. width -0.04 0.00 -0.04 -0.03 -0.16 -0.20 -0.08 -0.11 -0.20 -0.24 -0.16 -0.16 -0.31 -0.43 -0.20 -0.24

CSLI, sq.in./in. width -0.04 0.00 -0.04 -0.03 -0.16 -0.20 -0.08 -0.11 -0.20 -0.24 -0.16 -0.16 -0.31 -0.43 -0.20 -0.24

Velocity, ft/s 0.0 5.7 0.0 11.6 0.0 16.5 0.0 22.7



2.60 2.72 10.16 5.24 20.98 7.61 39.61 10.49



Loss/Gain, sq.in./in. width 0.00 -0.04 -0.08 -0.03 -0.04 -0.08 -0.08 -0.05 -0.12 -0.20 -0.35 -0.19 -0.20 -0.43 -0.43 -0.28

CSLI, sq.in./in. width 0.00 -0.04 -0.08 -0.03 -0.04 -0.08 -0.08 -0.05 -0.12 -0.20 -0.35 -0.19 -0.20 -0.43 -0.43 -0.28

Velocity, ft/s 0.0 5.6 0.0 11.8 0.0 16.3 0.0 22.4



2.60 2.80 10.16 5.18 20.98 7.70 39.61 10.59Calculations

10

Calculations

11

7

Calculations

8

Calculations

9

Calculations

5

Calculations

6

Calculations

4

Calculations

2

Calculations

3

Calculations

Cross-Section Measurements Measured Volumetric Flow, cfs: Measured Volumetric Flow, cfs: Measured Volumetric Flow, cfs: Measured Volumetric Flow, cfs:

1

Calculations

PP5-10 Anchorage: 3.8/ Sq. Yd.



May 31, 2015

Appendix

APPENDIX B – TEST SOIL

Test Soil Grain Size Distribution Curve

Compaction Curves

Veneer Soil Compaction Verification

March 26, 2014

Corporate Laboratory: 9063 Bee Caves Road, Austin, TX 78733 / 800-880-TEST / 512-263-2101 / [email protected]

Denver Downs Research Facility: 4915 Clemson Blvd., Anderson, SC 29621 / 864-242-2220 / [email protected]

0

10

20

30

40

50

60

70

80

90

100

0.00010.0010.010.1110100

Perc

en

tF

iner

Particle Size (mm)

DDRF ASTM D 6460 Blended Test Soil

ASTM D 6460 Target Loam Range

Plasticity (ASTM D 4318)Liquid Limit: 32Plastic Limit: 24Plastic Index: 8

Soil classifies as a clayey sand (SC)in accordance with ASTM D 2487

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not apply

to samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.

TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

9063 Bee Caves Road Austin, TX 78733-6201 (512) 263-2101 (512) 263-2558 1-800-880-TEST

James Sprague, 11/08/13

Tested by: J.E.Sprague

80

85

90

95

100

105

110

115

120

10 15 20 25 30 35 40 45 50

Dry

Den

sity

(pcf

)

Moisture Content (%)

Proctor Compaction Test

2.80

2.60

2.70

Project: DDRF

Sample No.: SLOPE COMPOSITE

Test Date: NOVEMBER 8, 2013

Test Method: ASTM D 698 - Method A

Maximum Dry Density (pcf): 99.2

Optimum Moisture Content (%): 19.5

Location: Date: 11/8/2013

Drive Cylinder: Dia., mm = 98 Length, mm = 127 Volume, ft3= 0.034

Tube # 1 2 3 4 5 6

Wt. of Wet Soil + Mold (g) 2285.0 2262.0 2257.0 2249.0 2267.0 2270.0

Wt. of Mold (g) 615.0 615.0 615.0 615.0 615.0 615.0

Wt. of Wet Soil (g) 1670.0 1647.0 1642.0 1634.0 1652.0 1655.0

Tare Number B T M

Wt. of Tare (g) 14.2 14.2 14.2 14.2 14.2 14.2

Wt. of Wet Soil + Tare (g) 24.5 24.3 26.5 25.3 22.5 23.9

Wt. of Dry Soil + Tare (g) 22.8 22.7 24.6 23.5 21.1 22.5

Water Content, w (%) 19.396 18.588 18.252 19.334 20.260 16.847

Wet density, ɣwet = W' / Vh (lb/ft3) = 108.73 107.24 106.91 106.39 107.56 107.76

Dry density, ɣdry = ɣwet / [1 + w] (lb/ft3) = 91.07 90.43 90.41 89.15 89.44 92.22

Max Std. Proctor Dry density (lb/ft3) = 98.60 98.60 98.60 98.60 98.60 98.60

Opt. Moisture (%) = 19.80 19.80 19.80 19.80 19.80 19.80

Compaction as % of Std. Proctor = 92.4% 91.7% 91.7% 90.4% 90.7% 93.5%

Avg Compaction as % of Std. Proctor =

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not apply

to samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.

TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

9063 Bee Caves Road Austin, TX 78733-6201 (512) 263-2101 (512) 263-2558 1-800-880-TEST

James Sprague, 11/8/13

Quality Review/Date

Tested by: J.E. Sprague

Compaction Worksheet

ASTM D 2937

DDRF CHANNELS

Compaction

Moisture Content

91.7%



May 31, 2015

Appendix

APPENDIX C – ANCHOR PATTERN

may 20, 2003 - ntpep is verified to be 90% (± 3%) of proctor standard density using astm d 2937...

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