Attachment 1NRCS-ENG-354, Soil Mechanics Laboratory Test Data, 1 sheetNRCS-ENG-354Rev. Feb 2006File Code ENG-210-22Soil Mechanics Laboratory DataU.S. Department of AgricultureNatural Resources Conservation ServiceSheet _1__ of _1__7420P.I.

100

58

36CH16.41.55

99

100

70

46CH20.71.7397.8

92

97

100

6341

CH

6893

100 100

70

47CH21.51.65

54

73

91

99

100

70

47CH22.4

357596

100 100

68

45CH21.9

59

73

93

98

100

59

36CH36

69

83

94

96

10064

40CH62

78

9496

97

100

69

42CH<.55273939810063

39

CH2.7

5456

93

96

99100

77

53CH28.61.534363

82

86

87

100

52

30CH22.9

476690

92

94

10059

43CH28.0201.1Inside cut ASApprox. Sta. 5+000-21400

201.2Inside cut ASApprox. Sta. 5+0010-11 Undist.

1401

201.3Inside cut ASApprox. Sta. 5+0030-35 Small1402

202.1Inside cut ASApprox. Sta. 6+505-71403

202.2Inside cut ASApprox. Sta. 6+5010-11 Undist.

1404

202.3Inside cut ASApprox. Sta. 6+5015-16 Undist.

1405

202.4Inside cut ASApprox. Sta. 6+5019-20 Small1406

202.5Inside cut ASApprox. Sta. 6+5020Undist.
20.51407

203.1Inside cut ASApprox. Sta. 8+0017-19 Small1408

203.2Inside cut ASApprox. Sta. 8+0024-25 Small1409

301.1Outlet Basin Left DSApprox. Sta. 15+00
CL Dam14-16 Undist.

1410

803.1D. S. BermApprox. Sta. 15+887-9.5 Undist.

1411

802.1D. S. BermApprox. Sta. 14+707-8.5 Undist.

Undist.

Undist.

0.002mm0.005
mm

0.02
mm

0.05mm#200 #140 #600.074 0.105 0.250mmmmmm486386965476965972

54--#400.42mm-#20
0.84mm-#10
2.0mm#4
4.76
mm3/8"9.525
mm1/2"
12.7
mm3/4"19.05mm1"
25.4mm1 1/2"
38.1mm3"
76.2mm<.52.5Moisture-Density1 Hr4 Hr

61.2511

2.6511

12.73

111

12.72

89.26112.741.64

92.05112.731.67

94.751

12.72

111

1

2.761112.7522.3131

12.72

27.571

12.75

99.17112.741.62

93.861

12.681.51

96.461

12.6922.622.121.31.6587.9ASTM D698Crumb TestPinhole

SampleType1399GravelSandDispersionDoubleHydrometerDepth (ft)Location and DescriptionF10L.L.

FinesAtterberg
LimitsPercent SaturationPlum Creek Site 67420Hays Co.

Natural Dry Unit Weight3(gm/cm )Lab. Sample Field Sample
No.
No.

WF-07Soluble Salts %TXUnified Classification

8/9/10Natural Moisture (%)

Job No.
Mechanical AnalysisGrain Size Distribution Expressed as Percent Finer by Dry WeightGSMax d(pcf)w0 %GM%AbsorptionpHAttachment 2Undisturbed Sample Characteristics and Photos, 18 sheetsAttachment 3Shear Strength Soil Test Data, 136 sheetsAttachment 4Foundation Consolidation Soil Test Data, 2 sheetsAttachment 5Consolidation EstimatePlum Creek, Site 6 - Job No. 7420Summary of Basic Assumptions:Section AnalyzedDepth of Compressible Foundation, feet:Height of Embankment,feet:Moist Unit Weight Embankment, pcf:b Value Used, feet:Layer Thickness PoNumber
feetpsf
15860210860

P Po+P
psfpsf575 1,4351,150 2,010Toe near PS155115Cc

CrPc
ReboundVirgine0
psfsu1su20.799 0.246 0.114 9,500 0.0140902 0.00000.799 0.246 0.114 9,500 0.0233638 0.0000Total SettlementTotalTotal Settlement
SuFeet1.41%0.072.3%0.230.30Taylor Estimate3.0%4.8%TotalPrepared by Fort Worth Soil Mechanics Lab6/26/20140.150.480.63Site #Sample #Depth (ft)USCS

0.005

58151620152415232845
F73‐159193394
11
811CHCHCHCHCH

7764624866# 2000.0741009563LL

PI

GsγdωγdeoCcCrPoPc

2K4K8K8262758487

51
324955552.782.652.752.662.771.581.371.331.581.2726.3
31.8
3829.740.91.551.280.7991.071.0990.8811.2370.2460.3410.2682.60.3270.1140.067

860
4201250500122595004000500060005000Sat @ 4500
2.8
5.61.510.40.44.51.411.24

0.0741.81Attachment 5Water Elevation Data, 1 sheetPlum Creek # 6 Water Level @ Downstream ToePeizo Leves on 8/13/2010615614.5
614613612.5612611.5611610.524002200200018001600Station140012006101000Elev (ft)613.5Attachment 6Bi-Linear Strength Parameters, 1 sheetAttachment 5Summary of Bi-Linear Shear ParametersNon-Linear Envelope Calculation for SLOPE/WInput for Downstream Steady Seepage andUpstream Drawdown ConditionsPlum Creek, Site 6, TX - Job No. 7420P.S. 301.1 (10-1409)
Total StressTotal Stress c

2233530.5315Effective Stress Effective Stress cComposite for US DD
Cohesion
Phi - 1
Phi - 2N @ xsctP.S. 803.1 (10-1410)
Total StressTotal Stress cdeg.
psfdeg.
psfEffective Stress Effective Stress cFERC Envelope315 Cohesion30.5 Phi - 122.0 Phi - 2108 N @ xsctComposite for US DD31530.526.3108

Cohesion
Phi - 1
Phi - 2N @ xsctP.S. 802.1 (10-1411)
Total StressTotal Stress cEffective Stress Effective Stress cComposite for US DD
Cohesion
Phi - 1
Phi - 2N @ xsctdeg.
psfdeg.
psfFERC Envelope365 Cohesion30.0 Phi - 118.0 Phi - 2574 N @ xsct36530.024.0574Plum Watershed AvgTotal StressTotal Stress cdeg.
400 psfdeg.
psfEffective Stress Effective Stress cFERC Envelope0 Cohesion0.0 Phi - 10.0 Phi - 2
N @ xsct#DIV/0!

18510
30365Composite for US DD0 Cohesion0.0 Phi - 10.0 Phi - 2
N @ xsct#DIV/0!

6.8
14009.51120FERC Envelope1,120 Cohesion9.5 Phi - 16.8 Phi - 25,821 N @ xsctPrepared by NDCSMC - Fort Worth Soil Mechanics Lab6/10/2014

deg.
psfdeg.
psf1,120
9.58.25,821Attachment 7Graphical Summaries of Slope Stability Analysis, 4 sheetsTitle: Plum Creek Site # 6, 7420, TXDescription: EOC350Method: Spencer 400

100700150200250

300

450700690690680680670670660660

2.358650650640640630630Embankment

620610Embankment CoreEmbankmentFoundation Upper

620610Foundation Upper600600Foundation590

590

580
570
560
550100580Name: EmbankmentUnit Weight: 117.5 pcf Cohesion': 1,120 psf Phi': 9.5 ° Constant Unit Wt. Above Water Table: 101 pcfName: FoundationUnit Weight: 115 pcf Cohesion': 315 psf Phi 1: 30.5 ° Constant Unit Wt. Above Water Table: 111 pcfName: Embankment CoreUnit Weight: 109 pcf Cohesion': 1,120 psf Phi': 9.5 ° Constant Unit Wt. Above Water Table: 101 pcfName: Foundation UpperUnit Weight: 118 pcf Cohesion': 315 psf Phi 1: 30 ° Constant Unit Wt. Above Water Table: 115 pcf150200250300350

400

570
560
550450Elevation

StationStation150200250300350690400Title: Plum Creek Site # 6, 7420, TXDescription: URDMethod: Spencer

680
670
660

450
700
690
680
6706602.603650650640640630630RockRiprapEmbankment

620610Embankment CoreEmbankmentFoundation Upper

620610Foundation Upper600600Foundation590590580580570570560

560

550100150200250300350400Name: EmbankmentUnit Weight: 117.5 pcf Cohesion': 1,120 psf Phi': 9.5 ° Total Cohesion: 1,400 psf Total Phi: 7 °Name: FoundationUnit Weight: 115 pcf Cohesion': 315 psf Phi': 30.5 ° Total Cohesion: 335 psf Total Phi: 22 °Name: Embankment CoreUnit Weight: 109 pcf Cohesion': 1,120 psf Phi': 9.5 ° Total Cohesion: 1,400 psf Total Phi: 7 °Name: Rock RiprapUnit Weight: 120 pcf Cohesion': 0 psf Phi': 40 ° Total Cohesion: 1 psf Total Phi: 38 °Name: Foundation UpperUnit Weight: 118 pcf Cohesion': 365 psf Phi': 30 ° Total Cohesion: 510 psf Total Phi: 18 °

550450Elevation

100700100700150200250300350

400

450700690690680680670670660660650650640640630630Embankment

620610Embankment CoreEmbankmentFoundation Upper

620610Foundation Upper600600Foundation590590580580570570560

560

550100150200250300350400Name: EmbankmentUnit Weight: 117.5 pcf Cohesion': 1,120 psf Phi 1: 9.5 ° Constant Unit Wt. Above Water Table: 101 pcfName: FoundationUnit Weight: 115 pcf Cohesion': 315 psf Phi 1: 30.5 ° Constant Unit Wt. Above Water Table: 115 pcfName: Embankment CoreUnit Weight: 109 pcf Cohesion': 1,120 psf Phi 1: 9.5 ° Constant Unit Wt. Above Water Table: 101 pcfName: Foundation UpperUnit Weight: 118 pcf Cohesion': 365 psf Phi 1: 30.5 ° Constant Unit Wt. Above Water Table: 115 pcf

550450ElevationStationTitle: Plum Creek Site # 6, 7420, TXDescription: DSSMethod: SpencerTitle: Plum Creek Site # 6, 7420, TXDescription: Seismic pgaMethod: SpencerHorz Seismic Coef.: 0.07603150200250300350

400

450700690690680680670670660660

1.782650650640640630630Embankment

620610Embankment CoreEmbankmentFoundation Upper

620610Foundation Upper600600Foundation590590580580570570560

560

550100150200250300350

400

550450Name: EmbankmentUnit Weight: 117.5 pcf Cohesion': 1,120 psf Phi 1: 9.5 ° Constant Unit Wt. Above Water Table: 101 pcfName: FoundationUnit Weight: 115 pcf Cohesion': 315 psf Phi 1: 30.5 ° Constant Unit Wt. Above Water Table: 111 pcfName: Embankment CoreUnit Weight: 109 pcf Cohesion': 1,120 psf Phi 1: 9.5 ° Constant Unit Wt. Above Water Table: 101 pcfName: Foundation UpperUnit Weight: 118 pcf Cohesion': 365 psf Phi 1: 30.5 ° Constant Unit Wt. Above Water Table: 115 pcfElevationStation
100700Attachment 8Seed Chart Plotting Plasticity Index versus Liquid Limit, 1 sheetPlum Creek Site # 670605040PI vs LLPI30LL 50A Line20100020

4060
LL80100Seed et al., 2003