attachment d-4: slope and seepage results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. unit...

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Attachment D-4: Slope and Seepage Results Attachment D-4: Slope and Seepage Results

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Page 1: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Attachment D-4:

Slope and Seepage Results

Attachment D-4: Slope and Seepage Results

Page 2: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Stability Case

Factor of Safety

Optimized(Drained Req = 1.5;

Undrained Req. = 1.3)

Notes

Global Stability 2.45 None.

Global Entry Check 2.06 None.

Lower Stability 2.49 FS required for Lower Stability is 1.2

Localized Stability 2.49 FS required for Localized Stability is 1.2

Undrained 1.36Tension Crack Required. Depth = 8 feet. Tension Crack filled 

with water.

Global Stability 1.59 None.

Global Entry Check 1.98 2ft Tension Crack Required. Filled with Water. 

Lower Stability 1.50 FS required for Lower Stability is 1.2

Localized Stability 1.36 FS required for Localized Stability is 1.2

Undrained 1.41Tension Crack Required. Depth = 4 feet. Tension Crack filled 

with water.

Global Stability 1.71 None.

Global Entry Check 1.85 2ft Tension Crack Required. Filled with Water. 

Lower Stability 1.51 FS required for Lower Stability is 1.2

Localized Stability 1.35 FS required for Localized Stability is 1.2

Undrained 1.41Tension Crack Required. Depth = 5 feet. Tension Crack filled 

with water.

Global Stability 1.9 None.

Localized Stability 1.44 FS required for Localized Stability is 1.2

Undrained 1.489Tension Crack Inserted. Depth = 5 feet. Tension Crack filled 

with water. 

(1) Slide slip surfaces are circular and non‐optimized.   

Stability Case

Factor of Safety

Optimized(Drained Req = 1.5;

Undrained Req. = 1.3)

Notes

Global Stability 1.81 2ft Tension Crack Required. Filled with Water.

Localized Stability 1.80 2ft Tension Crack Required. Filled with Water.

Undrained 1.88 6ft Tension Crack Required. Filled with Water.

Global Stability 1.53 2ft Tension Crack Required. Filled with Water.

Localized Stability 1.52 2ft Tension Crack Required. Filled with Water.

Undrained 1.85 5ft Tension Crack Required. Filled with Water.

(1) Embankment top elevation is actually 932.5, 1.5ft is required for overbuild to account for settlement

Right EMB and Dam Results

Left Embankment Tie‐back Dam Results

Upstream Dam and EMB Stability (50ft Bench)

Downstream EMB and Levee Stability (50ft Bench) 1V:7H Slopes ‐ Transition into CR16/17 Layout

Water Surface: In‐Flow Design Flood Elevation 926

Water Surface: Top of Embankment Dam: 931(1)

Downstream EMB and Levee Stability (95ft Bench) 1V:4H Slopes

Verification with Computer Program Rocscience SLIDE(1)

Attachment D-4: Slope and Seepage Results

Page 3: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Tie‐back Embankment Dam Seepage Results

Loading CaseGround 

Surface [FT]

Elevation of Node 

[FT] (1)Gradient 

Length [FT]

Total Head at 

Node [FT]

 Head [FT]

Y‐Gradient Critical 

Gradient (2)Factor of 

Safety (3)

926 Pool and No Tailwater 915 911.07 3.93 916.03 1.03 0.26 0.84 3.22

931 Pool and No Tailwater 915 911.07 3.93 916.49 1.49 0.38 0.84 2.22

932.5 Pool and No Tailwater 915 911.07 3.93 916.60 1.60 0.41 0.84 2.07(1) Node taken just below the toe of the embankment. (2) Critical gradient taken on the Sherack Material, Unit Weight of 115pcf(3) Required Factor of Safety is 1.6

Attachment D-4: Slope and Seepage Results

Page 4: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

89

9.5

900 900.5

901 901.5

901.5

902

902.5

90

3

903

90

3.5

90

4

90

4.5

90

5

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Total Head Boundary 905ft

Soil PropertiesName: Sherack Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Name: Brenna Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.63 ft³/ft³ Mv: 3e-005 /psf Name: Argusville Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf Name: Unit "A" Till Model: Saturated Only K-Sat: 0.057 ft/days Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf Name: Dam Fill Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Name: EMB Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack

Offset = 100 feet from Channel

Sherack

Brenna

F-M Flood Risk ManagementInlet Structure: Upstream of Control StructureSet-Back Distance Stability (50 feet)Southern ParametersUpstream Channel Elevation: 899.2

Argusville

-260

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/22/2016

-360

Steady-State Seepage Analysis

-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz Steady-State Seepage Analysis

Offset = 150 feetDistance-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 5: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

899.5 900

900.5 901

901.5 901.5

902

902.5

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf atio: 0.25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack

Offset = 100 feet from Channel

Sherack

Brenna

Argusville

-260-360-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz Steady-State Seepage Analysis

Offset = 150 feet

00 -500 -400 -300 -200 -100 0

Ele

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795

815

835

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875

895

915

935

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1,015

Attachment D-4: Slope and Seepage Results

Page 6: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

2.45

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

Offset = 100 feet from Channel

Sherack

Brenna

F-M Flood Risk ManagementInlet Structure: Upstream of Control StructureSet-Back Distance Stability (50 feet)Southern ParametersUpstream Channel Elevation: 899.2

Argusville

-260

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/22/2016

-360

(1) Global Stability

-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(1) Global Stability

Offset = 150 feetDistance-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

Ele

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Attachment D-4: Slope and Seepage Results

Page 7: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

2.45

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° n': 225 psf Phi': 22 ° Phi-B: 0 ° Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

psf Phi': 14 ° Phi-B: 0 °

Offset = 100 feet from Channel

Sherack

Brenna

Argusville

-260-360-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(1) Global Stability

Offset = 150 feet

00 -500 -400 -300 -200 -100 0

Ele

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795

815

835

855

875

895

915

935

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1,015

Attachment D-4: Slope and Seepage Results

Page 8: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

2.06

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

Offset = 100 feet from Channel

Sherack

Brenna

F-M Flood Risk ManagementInlet Structure: Upstream of Control StructureSet-Back Distance Stability (50 feet)Southern ParametersUpstream Channel Elevation: 899.2

Argusville

-260

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/22/2016

-360

(1b) Global Entry Check

-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(1b) Global Entry Check

Offset = 150 feetDistance-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

Ele

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795

815

835

855

875

895

915

935

955

975

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1,015

Attachment D-4: Slope and Seepage Results

Page 9: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

2.06

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° n': 225 psf Phi': 22 ° Phi-B: 0 ° Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

psf Phi': 14 ° Phi-B: 0 °

Offset = 100 feet from Channel

Sherack

Brenna

Argusville

-260-360-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(1b) Global Entry Check

Offset = 150 feet

00 -500 -400 -300 -200 -100 0

Ele

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n

795

815

835

855

875

895

915

935

955

975

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1,015

Attachment D-4: Slope and Seepage Results

Page 10: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

2.49

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

Offset = 100 feet from Channel

Sherack

Brenna

F-M Flood Risk ManagementInlet Structure: Upstream of Control StructureSet-Back Distance Stability (50 feet)Southern ParametersUpstream Channel Elevation: 899.2

Argusville

-260

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/22/2016

-360

(2) Lower Stability

-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(2) Lower Stability

Offset = 150 feetDistance-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

Ele

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795

815

835

855

875

895

915

935

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1,015

Attachment D-4: Slope and Seepage Results

Page 11: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

2.49

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° n': 225 psf Phi': 22 ° Phi-B: 0 ° Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

psf Phi': 14 ° Phi-B: 0 °

Offset = 100 feet from Channel

Sherack

Brenna

Argusville

-260-360-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(2) Lower Stability

Offset = 150 feet

00 -500 -400 -300 -200 -100 0

Ele

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795

815

835

855

875

895

915

935

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1,015

Attachment D-4: Slope and Seepage Results

Page 12: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

2.49

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

Offset = 100 feet from Channel

Sherack

Brenna

F-M Flood Risk ManagementInlet Structure: Upstream of Control StructureSet-Back Distance Stability (50 feet)Southern ParametersUpstream Channel Elevation: 899.2

Argusville

-260

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/22/2016

-360

(3) Localized Stability

-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(3) Localized Stability

Offset = 150 feetDistance-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

Ele

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835

855

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Attachment D-4: Slope and Seepage Results

Page 13: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

2.49

Unit "A" Till

Offset = 50 feetDam Fill

-310 -260

2% Slope

Sherack

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° n': 225 psf Phi': 22 ° Phi-B: 0 ° Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

psf Phi': 14 ° Phi-B: 0 °

Offset = 100 feet from Channel

Sherack

Brenna

Argusville

-260-360-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(3) Localized Stability

Offset = 150 feet

00 -500 -400 -300 -200 -100 0

Ele

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795

815

835

855

875

895

915

935

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1,015

Attachment D-4: Slope and Seepage Results

Page 14: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.36

Unit "A" Till Undrained

Offset = 50 feetDam Fill Undrained

-310 -260

2% Slope

Sherack Undrained

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Soil PropertiesName: Sherack Undrained Model: Undrained (Phi=0) Unit Weight: 115 pcf Cohesion': 900 psf Name: Brenna Undrained Model: Undrained (Phi=0) Unit Weight: 106 pcf Cohesion': 650 psf Name: Argusville Undrained Model: S=f(depth) Unit Weight: 110 pcf C-Top of Layer: 650 psf C-Rate of Change: 10 (lbs/ft²)/ft C-Maximum: 850 psf Name: Unit "A" Till Undrained Model: Undrained (Phi=0) Unit Weight: 123 pcf Cohesion': 1,900 psf Name: Dam Fill Undrained Model: Undrained (Phi=0) Unit Weight: 120 pcf Cohesion': 900 psf Name: EMB Undrained Model: Undrained (Phi=0) Unit Weight: 121 pcf Cohesion': 600 psf

Offset = 100 feet from Channel

Sherack Undrained

Brenna Undrained

F-M Flood Risk ManagementInlet Structure: Upstream of Control StructureSet-Back Distance Stability (50 feet)Southern ParametersUpstream Channel Elevation: 899.2

Argusville Undrained

-260

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/22/2016

-360

(1) Undrained Stability

-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(1) Undrained Stability

Offset = 150 feetDistance-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 15: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.36

Unit "A" Till Undrained

Offset = 50 feetDam Fill Undrained

-310 -260

2% Slope

Sherack Undrained

File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Top of Layer: 650 psf C-Rate of Change: 10 (lbs/ft²)/ft C-Maximum: 850 psf pcf Cohesion': 1,900 psf f Cohesion': 900 psf Cohesion': 600 psf

Offset = 100 feet from Channel

Sherack Undrained

Brenna Undrained

Argusville Undrained

-260-360-510

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Upstream_Channel_899.2.gsz(1) Undrained Stability

Offset = 150 feet

00 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 16: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

884 886 888 890 892

89

4

89

6

89

8

90

0

90

2

90

4

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 FeetEMB

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

Total Head Boundary 905ft

Soil PropertiesName: Sherack Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Name: Brenna Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.63 ft³/ft³ Mv: 3e-005 /psf Name: Argusville Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf Name: Unit "A" Till Model: Saturated Only K-Sat: 0.057 ft/days Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf Name: Levee/Dam Fill Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Name: EMB Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack

1V:4H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (95 feet)Southern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

-370

Steady-State Seepage Analysis-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gszSteady-State Seepage Analysis

-465

-470-620Offset 100ft from ChannelOffset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 17: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

884 886 888 890 892

89

4

89

6

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 Feet

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf .25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf k Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack x' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack

1V:4H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

-370

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gszSteady-State Seepage Analysis

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Attachment D-4: Slope and Seepage Results

Page 18: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.59

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 FeetEMB

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Levee/Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

1V:4H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (95 feet)Southern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

-370

(1) Global Stability-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(1) Global Stability

-465

-470-620Offset 100ft from ChannelOffset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 19: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.59

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 Feet

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° psf Phi': 22 ° Phi-B: 0 ° Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

Phi': 14 ° Phi-B: 0 °

1V:4H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

-370

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(1) Global Stability

-465

-470620Offset 100ft from ChannelOffset 150ft

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Attachment D-4: Slope and Seepage Results

Page 20: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.98

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 FeetEMB

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Levee/Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

1V:4H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (95 feet)Southern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

-370

(1b) Global Entry Check-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(1b) Global Entry Check

-465

-470-620Offset 100ft from ChannelOffset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 21: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.98

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 Feet

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° psf Phi': 22 ° Phi-B: 0 ° Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

Phi': 14 ° Phi-B: 0 °

1V:4H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

-370

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(1b) Global Entry Check

-465

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Attachment D-4: Slope and Seepage Results

Page 22: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.50

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 FeetEMB

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Levee/Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

1V:4H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (95 feet)Southern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

-370

(2) Lower Stability-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(2) Lower Stability

-465

-470-620Offset 100ft from ChannelOffset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 23: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.50

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 Feet

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° psf Phi': 22 ° Phi-B: 0 ° Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

Phi': 14 ° Phi-B: 0 °

1V:4H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

-370

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(2) Lower Stability

-465

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Attachment D-4: Slope and Seepage Results

Page 24: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.36

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 FeetEMB

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Levee/Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

1V:4H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (95 feet)Southern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

-370

(3) Localized Stability-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(3) Localized Stability

-465

-470-620Offset 100ft from ChannelOffset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 25: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.36

Unit "A" Till

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill 2% Slope

Offset = 95 Feet

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° psf Phi': 22 ° Phi-B: 0 ° Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

Phi': 14 ° Phi-B: 0 °

1V:4H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

-370

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(3) Localized Stability

-465

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-600 -500 -400 -300 -200 -100 0795

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Attachment D-4: Slope and Seepage Results

Page 26: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.41

Unit "A" Till Undrained

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill Undrained 2% Slope

Offset = 95 FeetEMB Undrained

Sherack Undrained

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

Soil PropertiesName: Sherack Undrained Model: Undrained (Phi=0) Unit Weight: 115 pcf Cohesion': 900 psf Name: Brenna Undrained Model: Undrained (Phi=0) Unit Weight: 106 pcf Cohesion': 650 psf Name: Argusville Undrained Model: S=f(depth) Unit Weight: 110 pcf C-Top of Layer: 650 psf C-Rate of Change: 10 (lbs/ft²)/ft C-Maximum: 850 psf Name: Unit "A" Till Undrained Model: Undrained (Phi=0) Unit Weight: 123 pcf Cohesion': 1,900 psf Name: Levee/Dam Fill Undrained Model: Undrained (Phi=0) Unit Weight: 120 pcf Cohesion': 900 psf Name: EMB Undrained Model: Undrained (Phi=0) Unit Weight: 121 pcf Cohesion': 600 psf

1V:4H

1V:7H

Brenna Undrained

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (95 feet)Southern ParametersDownstream Elevation: 888.5

Argusville Undrained

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

-370

(1) Undrained Stability-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(1) Undrained Stability

-465

-470-620Offset 100ft from ChannelOffset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 27: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.41

Unit "A" Till Undrained

Bottom of Diversion Channel 888.5ft

Levee/Dam Fill Undrained 2% Slope

Offset = 95 Feeted

Sherack Undrained

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5.gsz

Layer: 650 psf C-Rate of Change: 10 (lbs/ft²)/ft C-Maximum: 850 psf Cohesion': 1,900 psf f Cohesion': 900 psf on': 600 psf

1V:4H

1V:7H

Brenna Undrained

Argusville Undrained

Bottom of Excavation for Control Slab 883.5ft

-370

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FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5.gsz(1) Undrained Stability

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Attachment D-4: Slope and Seepage Results

Page 28: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

884 886 888 890 892

89

4

89

6

89

8

90

0

90

2

90

4

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

Total Head Boundary 905ft

Soil PropertiesName: Sherack Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Name: Brenna Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.63 ft³/ft³ Mv: 3e-005 /psf Name: Argusville Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf Name: Unit "A" Till Model: Saturated Only K-Sat: 0.057 ft/days Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf Name: Levee Fill Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Name: EMB Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack

1V:7H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (50 feet) and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Levee Fill

Steady-State Seepage Analysis-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gszSteady-State Seepage Analysis

-420

-470Offset 100ft from Channel

-620Offset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 29: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

884 886 888 890 892

89

4

89

6

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf 5 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf /Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack

1V:7H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

Levee Fill

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gszSteady-State Seepage Analysis

-420

-470Offset 100ft from ChannelOffset 150ft

600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 30: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.71

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Levee Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

1V:7H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (50 feet) and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Levee Fill

(1) Global Stability-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(1) Global Stability

-420

-470Offset 100ft from Channel

-620Offset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 31: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.71

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° sf Phi': 22 ° Phi-B: 0 ° 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° ': 14 ° Phi-B: 0 °

1V:7H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

Levee Fill

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(1) Global Stability

-420

-470Offset 100ft from ChannelOffset 150ft

600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 32: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.85

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Levee Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

1V:7H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (50 feet) and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Levee Fill

(1b) Global Entry Check-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(1b) Global Entry Check

-420

-470Offset 100ft from Channel

-620Offset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 33: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.85

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° sf Phi': 22 ° Phi-B: 0 ° 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° ': 14 ° Phi-B: 0 °

1V:7H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

Levee Fill

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(1b) Global Entry Check

-420

-470Offset 100ft from ChannelOffset 150ft

600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 34: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.51

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Levee Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

1V:7H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (50 feet) and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Levee Fill

(2) Lower Stability-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(2) Lower Stability

-420

-470Offset 100ft from Channel

-620Offset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 35: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.51

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° sf Phi': 22 ° Phi-B: 0 ° 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° ': 14 ° Phi-B: 0 °

1V:7H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

Levee Fill

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(2) Lower Stability

-420

-470Offset 100ft from ChannelOffset 150ft

600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 36: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.35

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Levee Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° Name: EMB Model: Mohr-Coulomb Unit Weight: 121 pcf Cohesion': 50 psf Phi': 14 ° Phi-B: 0 °

1V:7H

1V:7H

Brenna

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (50 feet) and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5

Argusville

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Levee Fill

(3) Localized Stability-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(3) Localized Stability

-420

-470Offset 100ft from Channel

-620Offset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 37: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.35

Unit "A" Till

Bottom of Diversion Channel 888.5ft

EMB2% Slope

Offset = 50 Feet

-370

Sherack

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° sf Phi': 22 ° Phi-B: 0 ° 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 ° ': 14 ° Phi-B: 0 °

1V:7H

1V:7H

Brenna

Argusville

Bottom of Excavation for Control Slab 883.5ft

Levee Fill

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(3) Localized Stability

-420

-470Offset 100ft from ChannelOffset 150ft

600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 38: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.41

Unit "A" Till Undrained

Bottom of Diversion Channel 888.5ft

EMB Undrained2% Slope

Offset = 50 Feet

-370

Sherack Undrained

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

Soil PropertiesName: Sherack Undrained Model: Undrained (Phi=0) Unit Weight: 115 pcf Cohesion': 900 psf Name: Brenna Undrained Model: Undrained (Phi=0) Unit Weight: 106 pcf Cohesion': 650 psf Name: Argusville Undrained Model: S=f(depth) Unit Weight: 110 pcf C-Top of Layer: 650 psf C-Rate of Change: 10 (lbs/ft²)/ft C-Maximum: 850 psf Name: Unit "A" Till Undrained Model: Undrained (Phi=0) Unit Weight: 123 pcf Cohesion': 1,900 psf Name: Levee Fill Undrained Model: Undrained (Phi=0) Unit Weight: 120 pcf Cohesion': 900 psf Name: EMB Undrained Model: Undrained (Phi=0) Unit Weight: 121 pcf Cohesion': 600 psf

1V:7H

1V:7H

Brenna Undrained

F-M Flood Risk ManagementInlet Structure (Downstream)Set-Back Distance Stability (50 feet) and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5

Argusville Undrained

Bottom of Excavation for Control Slab 883.5ft

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Levee Fill Undrained

(1) Undrained Stability-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(1) Undrained Stability

-420

-470Offset 100ft from Channel

-620Offset 150ftDistance

-2,000 -1,900 -1,800 -1,700 -1,600 -1,500 -1,400 -1,300 -1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

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Attachment D-4: Slope and Seepage Results

Page 39: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.41

Unit "A" Till Undrained

Bottom of Diversion Channel 888.5ft

EMB Undrained2% Slope

Offset = 50 Feet

-370

Sherack Undrained

File Name: FMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz

yer: 650 psf C-Rate of Change: 10 (lbs/ft²)/ft C-Maximum: 850 psf hesion': 1,900 psf

hesion': 900 psf n': 600 psf

1V:7H

1V:7H

Brenna Undrained

Argusville Undrained

Bottom of Excavation for Control Slab 883.5ft

Levee Fill Undrained

-370

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Downstream_888.5_932_5_1V_7H_Slope.gsz(1) Undrained Stability

-420

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Attachment D-4: Slope and Seepage Results

Page 40: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

916 916 916

918 918

92

0

922 924

924

926 926 926

Unit "A" Till

Dam Fill

Sherack

File Name: FMM_Inlet_Stability_Tie-Back_Dam_899.2.gsz

Soil PropertiesName: Sherack Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Name: Brenna Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.63 ft³/ft³ Mv: 3e-005 /psf Name: Argusville Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf Name: Unit "A" Till Model: Saturated Only K-Sat: 0.057 ft/days Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf Name: Dam Fill Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack

Brenna

F-M Flood Risk ManagementSouth Embankment DamSouthern ParametersG.S. 915ft

Argusville

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Flood 926 Steady-State Seepage AnalysisFMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszFlood 926 Steady-State Seepage Analysis

Distance-1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1,000

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Attachment D-4: Slope and Seepage Results

Page 41: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

916 918

92

0

922 924

Unit "A" Till

Dam Fill

Sherack

Name: Dam Fill Model: Saturated / Unsaturated K-Function: Alluv/She

Brenna

Argusville

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszFlood 926 Steady-State Seepage Analysis

Distance-300 -200 -100 0 100 200 30

Attachment D-4: Slope and Seepage Results

Page 42: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Attachment D-4: Slope and Seepage Results

Page 43: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.81

Unit "A" Till

Dam Fill

Sherack

File Name: FMM_Inlet_Stability_Tie-Back_Dam_899.2.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

Brenna

F-M Flood Risk ManagementSouth Embankment DamSouthern ParametersG.S. 915ft

Argusville

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Slope Stability Global 926 W.S.FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszSlope Stability Global 926 W.S.

Distance-1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1,000

Ele

vatio

n

795815835855875895915935955975995

Attachment D-4: Slope and Seepage Results

Page 44: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.81

Unit "A" Till

Dam Fill

Sherack

Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion : 150

Brenna

Argusville

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszSlope Stability Global 926 W.S.

Distance-300 -200 -100 0 100 200 30

Attachment D-4: Slope and Seepage Results

Page 45: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.80

Unit "A" Till

Dam Fill

Sherack

File Name: FMM_Inlet_Stability_Tie-Back_Dam_899.2.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

Brenna

F-M Flood Risk ManagementSouth Embankment DamSouthern ParametersG.S. 915ft

Argusville

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Slope Stability Localized 926 W.S.FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszSlope Stability Localized 926 W.S.

Distance-1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1,000

Ele

vatio

n

795815835855875895915935955975995

Attachment D-4: Slope and Seepage Results

Page 46: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.80

Unit "A" Till

Dam Fill

Sherack

Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion : 150

Brenna

Argusville

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszSlope Stability Localized 926 W.S.

Distance-300 -200 -100 0 100 200 30

Attachment D-4: Slope and Seepage Results

Page 47: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.88

Unit "A" Till Undrained

Dam Fill Undrained

Sherack Undrained

File Name: FMM_Inlet_Stability_Tie-Back_Dam_899.2.gsz

Soil PropertiesName: Sherack Undrained Model: Undrained (Phi=0) Unit Weight: 115 pcf Cohesion': 900 psf Piezometric Line: 1 Name: Brenna Undrained Model: Undrained (Phi=0) Unit Weight: 106 pcf Cohesion': 650 psf Piezometric Line: 1 Name: Argusville Undrained Model: S=f(depth) Unit Weight: 110 pcf C-Top of Layer: 650 psf C-Rate of Change: 10 (lbs/ft²)/ft C-Maximum: 850 psf Piezometric LineName: Unit "A" Till Undrained Model: Undrained (Phi=0) Unit Weight: 123 pcf Cohesion': 1,900 psf Piezometric Line: 1 Name: Dam Fill Undrained Model: Undrained (Phi=0) Unit Weight: 120 pcf Cohesion': 900 psf Piezometric Line: 1

Brenna Undrained

F-M Flood Risk ManagementSouth Embankment DamSouthern ParametersG.S. 915ft

Argusville Undrained

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Undrained W.S. 926FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszUndrained W.S. 926

Distance-1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1,000

Ele

vatio

n

795815835855875895915935955975995

Attachment D-4: Slope and Seepage Results

Page 48: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.88

Unit "A" Till Undrained

Dam Fill Undrained

Sherack Undrained

Name: Dam Fill Undrained Model: Undrained (Phi=0) Unit Weight: 120

Brenna Undrained

Argusville Undrained

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszUndrained W.S. 926

Distance-300 -200 -100 0 100 200 30

Attachment D-4: Slope and Seepage Results

Page 49: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

916

91

6

916

91

8 918 918

92

0

920

92

2

924

926

92

6

926

928 928

930 930 930

Unit "A" Till

Dam Fill

Sherack

File Name: FMM_Inlet_Stability_Tie-Back_Dam_899.2.gsz

Soil PropertiesName: Sherack Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Name: Brenna Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.63 ft³/ft³ Mv: 3e-005 /psf Name: Argusville Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf Name: Unit "A" Till Model: Saturated Only K-Sat: 0.057 ft/days Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf Name: Dam Fill Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack

Brenna

F-M Flood Risk ManagementSouth Embankment DamSouthern ParametersG.S. 915ft

Argusville

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Flood 931 Steady-State Seepage Analysis (2)FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszFlood 931 Steady-State Seepage Analysis (2)

Distance-1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1,000

Ele

vatio

n

795815835855875895915935955975995

Attachment D-4: Slope and Seepage Results

Page 50: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

916 918

920

92

2

924 926

928 930

Unit "A" Till

Dam Fill

Sherack

Name: Dam Fill Model: Saturated / Unsaturated K-Function: Alluv/She

Brenna

Argusville

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszFlood 931 Steady-State Seepage Analysis (2)

Distance-300 -200 -100 0 100 200 30

Attachment D-4: Slope and Seepage Results

Page 51: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Attachment D-4: Slope and Seepage Results

Page 52: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.53

Unit "A" Till

Dam Fill

Sherack

File Name: FMM_Inlet_Stability_Tie-Back_Dam_899.2.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

Brenna

F-M Flood Risk ManagementSouth Embankment DamSouthern ParametersG.S. 915ft

Argusville

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Slope Stability Global 931 W.S.FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszSlope Stability Global 931 W.S.

Distance-1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1,000

Ele

vatio

n

795815835855875895915935955975995

Attachment D-4: Slope and Seepage Results

Page 53: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.53

Unit "A" Till

Dam Fill

Sherack

Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion : 150

Brenna

Argusville

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszSlope Stability Global 931 W.S.

Distance-300 -200 -100 0 100 200 30

Attachment D-4: Slope and Seepage Results

Page 54: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.52

Unit "A" Till

Dam Fill

Sherack

File Name: FMM_Inlet_Stability_Tie-Back_Dam_899.2.gsz

Soil PropertiesName: Sherack Model: Bilinear Unit Weight: 115 pcf Cohesion': 0 psf Phi 1: 28 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Brenna Model: Bilinear Unit Weight: 106 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Argusville Model: Bilinear Unit Weight: 110 pcf Cohesion': 25 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 2,000 psf Phi-B: 0 ° Name: Unit "A" Till Model: Mohr-Coulomb Unit Weight: 123 pcf Cohesion': 225 psf Phi': 22 ° Phi-B: 0 ° Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion': 150 psf Phi 1: 24 ° Phi 2: 11 ° Bilinear Normal: 1,500 psf Phi-B: 0 °

Brenna

F-M Flood Risk ManagementSouth Embankment DamSouthern ParametersG.S. 915ft

Argusville

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Slope Stability Localized 931 W.S.FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszSlope Stability Localized 931 W.S.

Distance-1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1,000

Ele

vatio

n

795815835855875895915935955975995

Attachment D-4: Slope and Seepage Results

Page 55: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.52

Unit "A" Till

Dam Fill

Sherack

Name: Dam Fill Model: Bilinear Unit Weight: 120 pcf Cohesion : 150

Brenna

Argusville

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszSlope Stability Localized 931 W.S.

Distance-300 -200 -100 0 100 200 30

Attachment D-4: Slope and Seepage Results

Page 56: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.85

Unit "A" Till Undrained

Dam Fill Undrained

Sherack Undrained

File Name: FMM_Inlet_Stability_Tie-Back_Dam_899.2.gsz

Soil PropertiesName: Sherack Undrained Model: Undrained (Phi=0) Unit Weight: 115 pcf Cohesion': 900 psf Piezometric Line: 1 Name: Brenna Undrained Model: Undrained (Phi=0) Unit Weight: 106 pcf Cohesion': 650 psf Piezometric Line: 1 Name: Argusville Undrained Model: S=f(depth) Unit Weight: 110 pcf C-Top of Layer: 650 psf C-Rate of Change: 10 (lbs/ft²)/ft C-Maximum: 850 psf Piezometric LineName: Unit "A" Till Undrained Model: Undrained (Phi=0) Unit Weight: 123 pcf Cohesion': 1,900 psf Piezometric Line: 1 Name: Dam Fill Undrained Model: Undrained (Phi=0) Unit Weight: 120 pcf Cohesion': 900 psf Piezometric Line: 1

Brenna Undrained

F-M Flood Risk ManagementSouth Embankment DamSouthern ParametersG.S. 915ft

Argusville Undrained

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 2/9/2016

Undrained W.S. 931FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszUndrained W.S. 931

Distance-1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1,000

Ele

vatio

n

795815835855875895915935955975995

Attachment D-4: Slope and Seepage Results

Page 57: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.85

Unit "A" Till Undrained

Dam Fill Undrained

Sherack Undrained

Name: Dam Fill Undrained Model: Undrained (Phi=0) Unit Weight: 120

Brenna Undrained

Argusville Undrained

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszUndrained W.S. 931

Distance-300 -200 -100 0 100 200 30

Attachment D-4: Slope and Seepage Results

Page 58: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

916 918

920

922

924 926 928

930 932

Unit "A" Till

Dam Fill

Sherack

File Name: FMM_Inlet_Stability_Tie-Back_Dam_899.2.gsz

Soil PropertiesName: Sherack Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack Name: Brenna Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.63 ft³/ft³ Mv: 3e-005 /psf Name: Argusville Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf Name: Unit "A" Till Model: Saturated Only K-Sat: 0.057 ft/days Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf Name: Dam Fill Model: Saturated / Unsaturated K-Function: Alluv/Sherack Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Vol. WC. Function: Alluv/Sherack

932.5ft

Brenna

F-M Flood Risk ManagementSouth Embankment DamSouthern ParametersG.S. 915ft

Argusville

Seepage Node

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 3/10/2016

Flood 932.5 Steady-State Seepage Analysis (2)FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Tie-Back_Dam_899.2.gszFlood 932.5 Steady-State Seepage Analysis (2)

Distance-1,200 -1,100 -1,000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1,000

Ele

vatio

n

795815835855875895915935955975995

Attachment D-4: Slope and Seepage Results

Page 59: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Attachment D-4: Slope and Seepage Results

Page 60: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Slope Stability Check/Verification with 2nd Computer Program

Attachment D-4: Slope and Seepage Results

Page 61: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Material Name ColorUnit Weight(lbs/ 3)

Strength TypeCohesion(psf)

Phi(deg)

ShearNormalFunc on

WaterSurface

Phi b(deg)

Air Entry(psf)

Argusville 110 Shear Normal func on Argusville None 0 0

Brenna 106 Shear Normal func on Brenna None 0 0

Sherack 115 Shear Normal func on Sherack None 0 0

EMB 121 Mohr‐Coulomb 50 14 None 0 0

Levee Fill 120 Shear Normal func on Levee Fill None 0 0

Unit "A" Till 123 Mohr‐Coulomb 225 22 None 0 0

Material Name Color Model KS ( /d) K2/K1K1 Angle(deg)

Soil Type Alpha (1/ ) N

Argusville Simple 0.00028 1 0 Clay

Brenna Simple 0.00028 1 0 Clay

SherackVan

Genuchten0.0155906 0.25 0 0.1524 1.09

EMBVan

Genuchten0.0155906 1 0 0.1524 1.09

Levee FillVan

Genuchten0.0155906 0.25 0 0.1524 1.09

Unit "A" Till Simple 0.057 0.25 0 General

Material: Argusville

Material: Brenna

Material: SherackMaterial: EMB Material: Levee Fill

Material: Unit "A" Till

El. 883.51V:7H Slope

1V:7H Slope50ft BenchEl. 930.5

FMM: Inlet Structure - Final Stability AnalysesVerify Slope Stability Results with 2nd Computer ProgramDrained Condition

Inlet Structure (Downstream)Set-Back Distance Stability (50 feet)and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5Elevation of 883.5 was used for design. This elevation was chosen as the bottomof the concrete slab and bottom of ripraplayer.

1300

1200

1100

1000

900

800

700

600

-1500 -1400 -1300 -1200 -1100 -1000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

Analysis Description

CompanyScale 1:1199Drawn By

File Name Slide_Slope_Stability_Check.slimDate 2/8/2016, 1:38:09 PM

Project

SLIDE - An Interactive Slope Stability Program

SLIDE 6.023

Attachment D-4: Slope and Seepage Results

Page 62: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.4441.4441.4441.444

?????????????????????????

Material Name ColorUnit Weight(lbs/ 3)

Strength TypeCohesion(psf)

Phi(deg)

ShearNormalFunc on

WaterSurface

Phi b(deg)

Air Entry(psf)

Argusville 110 Shear Normal func on Argusville None 0 0

Brenna 106 Shear Normal func on Brenna None 0 0

Sherack 115 Shear Normal func on Sherack None 0 0

EMB 121 Mohr‐Coulomb 50 14 None 0 0

Levee Fill 120 Shear Normal func on Levee Fill None 0 0

Unit "A" Till 123 Mohr‐Coulomb 225 22 None 0 0

Material Name Color Model KS ( /d) K2/K1K1 Angle(deg)

Soil Type Alpha (1/ ) N

Argusville Simple 0.00028 1 0 Clay

Brenna Simple 0.00028 1 0 Clay

SherackVan

Genuchten0.0155906 0.25 0 0.1524 1.09

EMBVan

Genuchten0.0155906 1 0 0.1524 1.09

Levee FillVan

Genuchten0.0155906 0.25 0 0.1524 1.09

Unit "A" Till Simple 0.057 0.25 0 General

FMM: Inlet Structure - Final Stability AnalysesVerify Slope Stability Results with 2nd Computer ProgramDrained Condition

Inlet Structure (Downstream)Set-Back Distance Stability (50 feet)and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5Elevation of 883.5 was used for design. This elevation was chosen as the bottomof the concrete slab and bottom of ripraplayer.

Safety Factor0.0000.2500.5000.7501.0001.2501.5001.7502.0002.2502.5002.7503.0003.2503.5003.7504.0004.2504.5004.7505.0005.2505.5005.7506.000+

1200

1100

1000

900

800

700

600

-1200 -1100 -1000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

Analysis Description

CompanyScale 1:969Drawn By

File Name Slide_Slope_Stability_Check.slimDate 2/8/2016, 1:38:09 PM

Project

SLIDE - An Interactive Slope Stability Program

SLIDEINTERPRET 6.023

Attachment D-4: Slope and Seepage Results

Page 63: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Material Name ColorUnit Weight(lbs/ 3)

Strength TypeCohesion(psf)

Phi(deg)

ShearNormalFunc on

WaterSurface

Phi b(deg)

Air Entry(psf)

Argusville 110 Shear Normal func on Argusville None 0 0

Brenna 106 Shear Normal func on Brenna None 0 0

Sherack 115 Shear Normal func on Sherack None 0 0

EMB 121 Mohr‐Coulomb 50 14 None 0 0

Levee Fill 120 Shear Normal func on Levee Fill None 0 0

Unit "A" Till 123 Mohr‐Coulomb 225 22 None 0 0

Material Name Color Model KS ( /d) K2/K1K1 Angle(deg)

Soil Type Alpha (1/ ) N

Argusville Simple 0.00028 1 0 Clay

Brenna Simple 0.00028 1 0 Clay

SherackVan

Genuchten0.0155906 0.25 0 0.1524 1.09

EMBVan

Genuchten0.0155906 1 0 0.1524 1.09

Levee FillVan

Genuchten0.0155906 0.25 0 0.1524 1.09

Unit "A" Till Simple 0.057 0.25 0 General

Material: Argusville

Material: Brenna

Material: Sherack

Material: EMB Material: Levee Fill

Material: Unit "A" Till

El. 883.51V:7H Slope

1V:7H Slope 50ft Bench

El. 930.5

FMM: Inlet Structure - Final Stability AnalysesGlobal Stability Slip SurfaceVerify Slope Stability Results with 2nd Computer ProgramDrained Condition

Inlet Structure (Downstream)Set-Back Distance Stability (50 feet)and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5Elevation of 883.5 was used for design. This elevation was chosen as the bottomof the concrete slab and bottom of ripraplayer.

1200

1100

1000

900

800

700

600

-1000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100

Analysis Description

CompanyScale 1:872Drawn By

File Name Slide_Slope_Stability_Check_Global.slimDate 2/8/2016, 1:38:09 PM

Project

SLIDE - An Interactive Slope Stability Program

SLIDE 6.023

Attachment D-4: Slope and Seepage Results

Page 64: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.9151.9151.9151.9151.9151.915

?????????????????????????

Material Name ColorUnit Weight(lbs/ 3)

Strength TypeCohesion(psf)

Phi(deg)

ShearNormalFunc on

WaterSurface

Phi b(deg)

Air Entry(psf)

Argusville 110 Shear Normal func on Argusville None 0 0

Brenna 106 Shear Normal func on Brenna None 0 0

Sherack 115 Shear Normal func on Sherack None 0 0

EMB 121 Mohr‐Coulomb 50 14 None 0 0

Levee Fill 120 Shear Normal func on Levee Fill None 0 0

Unit "A" Till 123 Mohr‐Coulomb 225 22 None 0 0

Material Name Color Model KS ( /d) K2/K1K1 Angle(deg)

Soil Type Alpha (1/ ) N

Argusville Simple 0.00028 1 0 Clay

Brenna Simple 0.00028 1 0 Clay

SherackVan

Genuchten0.0155906 0.25 0 0.1524 1.09

EMBVan

Genuchten0.0155906 1 0 0.1524 1.09

Levee FillVan

Genuchten0.0155906 0.25 0 0.1524 1.09

Unit "A" Till Simple 0.057 0.25 0 General

Inlet Structure (Downstream)Set-Back Distance Stability (50 feet)and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5Elevation of 883.5 was used for design.This elevation was chosen as the bottomof the concrete slab and bottom of ripraplayer.

FMM: Inlet Structure - Final Stability AnalysesGlobabl Stability Slip SurfaceVerify Slope Stability Results with 2nd Computer ProgramDrained Condition

Safety Factor0.0000.2500.5000.7501.0001.2501.5001.7502.0002.2502.5002.7503.0003.2503.5003.7504.0004.2504.5004.7505.0005.2505.5005.7506.000+

Pressure Head[ft]

-36.000 -29.000 -22.000 -15.000 -8.000 -1.000 6.000 13.000 20.000 27.000 34.000 41.000 48.000 55.000 62.000 69.000 76.000 83.000 90.000 97.000 104.000 111.000 118.000 125.000 132.000

1300

1200

1100

1000

900

800

700

600

-1300 -1200 -1100 -1000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100

Analysis Description

CompanyScale 1:1110Drawn By

File Name Slide_Slope_Stability_Check_Global.slimDate 2/8/2016, 1:38:09 PM

Project

SLIDE - An Interactive Slope Stability Program

SLIDEINTERPRET 6.023

Attachment D-4: Slope and Seepage Results

Page 65: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Material Name ColorUnit Weight(lbs/ 3)

Strength TypeCohesion(psf)

CohesionType

CohesionChange(psf/ )

Cutoff(psf)

WaterSurface

Phi b(deg)

Air Entry(psf)

Argusville Undrained 110 Undrained 650 FDepth 10 850 None 0 0

Brenna Undrained 106 Undrained 650 Constant None 0 0

Sherack Undrained 115 Undrained 900 Constant None 0 0

EMB Undrained 121 Undrained 600 Constant None 0 0

Levee Fill 120 Undrained 900 Constant None 0 0

Unit "A" Till 123 Undrained 19000 Constant None 0 0

Material Name Color Model KS ( /d) K2/K1K1 Angle(deg)

Soil Type Alpha (1/ ) N

Argusville Undrained Simple 0.00028 1 0 Clay

Brenna Undrained Simple 0.00028 1 0 Clay

Sherack UndrainedVan

Genuchten0.0155906 0.25 0 0.1524 1.09

EMB UndrainedVan

Genuchten0.0155906 1 0 0.1524 1.09

Levee FillVan

Genuchten0.0155906 0.25 0 0.1524 1.09

Unit "A" Till Simple 0.057 0.25 0 General

Material: Argusville Undrained

Material: Till Undrained

Material: Brenna Undrained

Material: Sherack UndrainedMaterial: EMB Undrained

Material: Levee UndrainedEl. 883.5

1V:7H Slope50ft Bench1V:7H SlopeEl. 930.5

FMM: Inlet Structure - Final Stability AnalysesVerify Slope Stability Results with 2nd Computer ProgramUndrained Condition

1300

1200

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1000

900

800

700

600

-1400 -1300 -1200 -1100 -1000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0

Analysis Description

CompanyScale 1:1100Drawn By

File Name Slide_Slope_Stability_Check_Undrained.slimDate 2/8/2016, 1:38:09 PM

Project

SLIDE - An Interactive Slope Stability Program

SLIDE 6.023

Attachment D-4: Slope and Seepage Results

Page 66: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

1.4891.4891.4891.489

?????????????????????????

Material Name ColorUnit Weight(lbs/ 3)

Strength TypeCohesion(psf)

CohesionType

CohesionChange(psf/ )

Cutoff(psf)

WaterSurface

Phi b(deg)

Air Entry(psf)

Argusville Undrained 110 Undrained 650 FDepth 10 850 None 0 0

Brenna Undrained 106 Undrained 650 Constant None 0 0

Sherack Undrained 115 Undrained 900 Constant None 0 0

EMB Undrained 121 Undrained 600 Constant None 0 0

Levee Fill 120 Undrained 900 Constant None 0 0

Unit "A" Till 123 Undrained 19000 Constant None 0 0

Material Name Color Model KS ( /d) K2/K1K1 Angle(deg)

Soil Type Alpha (1/ ) N

Argusville Undrained Simple 0.00028 1 0 Clay

Brenna Undrained Simple 0.00028 1 0 Clay

Sherack UndrainedVan

Genuchten0.0155906 0.25 0 0.1524 1.09

EMB UndrainedVan

Genuchten0.0155906 1 0 0.1524 1.09

Levee FillVan

Genuchten0.0155906 0.25 0 0.1524 1.09

Unit "A" Till Simple 0.057 0.25 0 General

FMM: Inlet Structure - Final Stability AnalysesVerify Slope Stability Results with 2nd Computer ProgramUndrained Condition

Inlet Structure (Downstream)Set-Back Distance Stability (50 feet)and EMB with 1V:7H SlopeSouthern ParametersDownstream Elevation: 888.5Elevation of 883.5 was used for design. This elevation was chosen as the bottomof the concrete slab and bottom of ripraplayer.

Safety Factor0.0000.2500.5000.7501.0001.2501.5001.7502.0002.2502.5002.7503.0003.2503.5003.7504.0004.2504.5004.7505.0005.2505.5005.7506.000+

Pressure Head[ft]

-36.000 -29.000 -22.000 -15.000 -8.000 -1.000 6.000 13.000 20.000 27.000 34.000 41.000 48.000 55.000 62.000 69.000 76.000 83.000 90.000 97.000 104.000 111.000 118.000 125.000 132.000

1400

1300

1200

1100

1000

900

800

700

600

-1400 -1300 -1200 -1100 -1000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100

Analysis Description

CompanyScale 1:1222Drawn By

File Name Slide_Slope_Stability_Check_Undrained.slimDate 2/8/2016, 1:38:09 PM

Project

SLIDE - An Interactive Slope Stability Program

SLIDEINTERPRET 6.023

Attachment D-4: Slope and Seepage Results

Page 67: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

Attachment D-4: Slope and Seepage Results

Control Structure Pore Water Uplift Analysis

Page 68: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

917

918 919

920 921

922

923

924

925

Unit "A" Till

Total Head Boundary 910ft

File Name: FMM_Inlet_Stability_Control_Structure_Slab_No_Drainage_Blanket.gsz

Soil Properties

Name: Brenna Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.63 ft³/ft³ Mv: 3e-005 /psf Name: Argusville Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf Name: Unit "A" Till Model: Saturated Only K-Sat: 0.057 ft/days Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf Name: Concrete Model: Interface K-Transpose: 0 ft/days K-Normal: 0 ft/days Name: Sheet Pile Model: Interface K-Transpose: 1e-008 ft/days K-Normal: 1e-008 ft/days

Brenna

F-M Flood Risk ManagementInlet Structure Uplift PressureDownstream Elevation: 883

Argusville

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 4/29/2016

Boundary Conditions926 - 917 Tailwater

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Control_Structure_Slab_No_Drainage_Blanket.gsz926 - 917 Tailwater

She

et P

ile 1

6ft l

ong,

1ft

embe

dmen

t

She

et P

ile 1

6ft l

ong,

1ft

embe

dmen

t

She

et P

ile 1

6ft l

ong,

1ft

embe

dmen

t

Page 69: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

884 885 886 887 888 889

890

891 892 893

894

895 896 897

898

899

900

901

902 903

904

905 906

907

908 909 910

911 912 913 914 915

916 917 918

919 920

921 922

Unit "A" Till

File Name: FMM_Inlet_Stability_Control_Structure_Slab_No_Drainage_Blanket.gsz

Soil Properties

Name: Brenna Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.63 ft³/ft³ Mv: 3e-005 /psf Name: Argusville Model: Saturated Only K-Sat: 0.00028 ft/days Ky'/Kx' Ratio: 1 Rotation: 0 ° Volumetric Water Content: 0.6 ft³/ft³ Mv: 3e-005 /psf Name: Unit "A" Till Model: Saturated Only K-Sat: 0.057 ft/days Ky'/Kx' Ratio: 0.25 Rotation: 0 ° Volumetric Water Content: 0.45 ft³/ft³ Mv: 3e-005 /psf Name: Concrete Model: Interface K-Transpose: 0 ft/days K-Normal: 0 ft/days Name: Sheet Pile Model: Interface K-Transpose: 1e-008 ft/days K-Normal: 1e-008 ft/days

Brenna

F-M Flood Risk ManagementInlet Structure Uplift PressureDownstream Elevation: 883

Argusville

Created By: Schmidt, LukeLast Edited By: Schmidt, Luke L MVPDate Edited: 4/29/2016

Boundary Conditions922 - No Tailwater

FMM: Inlet Structure - Final Stability AnalysesFMM_Inlet_Stability_Control_Structure_Slab_No_Drainage_Blanket.gsz922 - No Tailwater

She

et P

ile 1

6ft l

ong,

1ft

embe

dmen

t

She

et P

ile 1

6ft l

ong,

1ft

embe

dmen

t

She

et P

ile 1

6ft l

ong,

1ft

embe

dmen

t

Page 70: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

865

875

885

895

905

915

925

‐50 0 50 100 150 200 250 300

Elev

atio

n (

ft) 

[88 d

atu

m]

Distance (ft)

FMM Inlet Control Structure:  922 Flood and No Tailwater ConditionElevation Head Underneath Control Structure 

Sheetpile

Sheetpile

Sheetpile

Control Structure Slab

Pool at 922

No Tailwater

Page 71: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

865

875

885

895

905

915

925

‐50 0 50 100 150 200 250 300

Elev

atio

n (

ft) 

[88 d

atu

m]

Distance (ft)

FMM Inlet Control Structure:  926 Flood and  917 Tailwater ConditionElevation Head Underneath Control Structure 

Sheetpile

Sheetpile

Sheetpile

Control Structure Slab

Pool at 926

Tailwater at 917

Page 72: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

865

875

885

895

905

915

925

0

200

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1000

1200

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[88 d

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Distance (ft)

FMM Inlet Control Structure:  922 Flood and No Tailwater Condition Pore Pressure underneath Control Structure

Sheetpile

Sheetpile

Sheetpile

Control Structure Slab

Pool at 922

No Tailwater

Page 73: Attachment D-4: Slope and Seepage Results...899.5 900 900.5 901 . 9 0. 5. 901.5 902 90 2. 5. Unit "A" Till. Offset = 50 feet Dam Fill-310 -260. 2% Slope. Sherack. File Name: FMM_Inlet_Stability_Upstream_Channel_899.2.gsz

865

875

885

895

905

915

925

0

500

1000

1500

2000

2500

3000

‐50 0 50 100 150 200 250 300

Elev

atio

n (

ft) 

[88 d

atu

m]

Distance (ft)

FMM Inlet Control Structure:  926 Flood and 917 Tailwater Condition Pore Pressure underneath Control Structure

Sheetpile

Sheetpile

Sheetpile

Control Structure Slab

Pool at 922

917 Tailwater