final Sedimentation Report - City and Borough of Sitka

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pan 3,876 14.36 mm 0.0471 ft Blue Lake Creek Delta Sediment Samples Station Blue Lake Delta Transect 3, SM -0.35 D65= 14.8 mm Armor Layer D50= 1.0 mm Size (mm) Percent Cum % Avg size No. 1 56% 56% 0.56 100 2 0% 56% 0.00 0 4 1% 56% 0.03 1 5.7 1% 57% 0.08 2 8 2% 59% 0.16 3 11 3% 62% 0.38 5 16 4% 66% 0.86 8 22.6 4% 71% 1.21 8 32 10% 81% 3.85 18 45 10% 91% 5.45 18 64 3% 94% 2.57 6 90 3% 97% 3.63 6 128 2% 99% 2.57 3 180 1% 100% 2.42 2 256 0% 100% 0.00 0 23.75 mm 180 0.0779 ft Percent Passing Blue Lake Delta Transect 3, SM -0.35 December 2009 D65= 8.8 mm Sub-Armor Layer D50= 5.0 mm Weight Avg Size (mm) (g) Percent Cum % size 128 0 0% 100% 0 64 0 0% 100% 0 37.5 39 1% 100% 0.68947 16 1,068 38% 99% 10.0551 8 415 15% 61% 1.75276 4 275 10% 46% 0.58073 2 241 8% 37% 0.25447 1 266 9% 28% 0.14059 0.5 285 10% 19% 0.07517 0.25 159 6% 9% 0.02101 0.125 55 2% 3% 0.00361 0.063 16 1% 1% 0.00053 Blue Lake Creek Reservoir Sedimentation Report Page A-3 Appendix A. Grain Size Data 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0.1 1 10 100 1000 Armor Size (mm) Layer Sub-Armor Layer
0.003 23 1% 1% 0.00026 2,841 13.57 mm 0.0445 ft Blue Lake Creek Delta Sediment Samples Station Delta Material - coble/gravel December 2009 D65= mm Delta Material - coble/gravel Armor Layer D50= mm Size (mm) Percent Cum % Avg size No. 100% 1 2 not taken 80% 4 60% 8 16 40% 32 20% 64 0% 128 0.1 1 10 100 1000 256 mm ft 0 Size (mm) Armor Layer Sub-Armor Layer D65= 11.4 mm Sub-Armor Layer D50= 7.8 mm Weight Avg Size (mm) (g) Percent Cum % size 128 0 0% 100% 0 64 0 0% 100% 0 37.5 519 15% 100% 7.82745 16 1,144 34% 85% 9.09817 8 467 14% 51% 1.66583 4 319 9% 37% 0.56903 2 220 7% 27% 0.19651 1 220 7% 21% 0.09794 0.5 185 6% 14% 0.04126 0.25 78 2% 9% 0.00868 0.125 38 1% 6% 0.0021 0.063 50 1% 5% 0.00139 0.003 125 4% 4% 0.00122 pan 3,363 19.51 mm Blue Lake Creek Reservoir Sedimentation Report 0.0640 ft Page A-4 Appendix A. Grain Size Data Percent Passing
Page 1: FINAL RESERVOIR SEDIMENTATION STUDY
Page 4 and 5: Figure 11. Cross Sectional Profiles
Page 6 and 7: Brad Creek Figure 1. Proposed Expan
Page 8 and 9: 2. Evaluate probable future fish ha
Page 10 and 11: The mapping units were transferred
Page 12 and 13: in June flows were greater than 541
Page 14 and 15: Peak flows in Blue Lake Creek were
Page 16 and 17: In lakes and reservoirs with fluctu
Page 18 and 19: 2. The operations model provides a
Page 20 and 21: Elevation (ft) Elevation (ft) 370 3
Page 22 and 23: Under expansion operation condition
Page 24 and 25: Relative Elevation (ft) Relative El
Page 26 and 27: 100% 90% 80% 70% 60% 50% 40% 30% 20
Page 28 and 29: Table 5. Estimated Spawning Use, Me
Page 30 and 31: 3500 3000 2500 2000 1500 Distance a
Page 32 and 33: 3500 3000 2500 2000 1500 Distance a
Page 34 and 35: volume of sediment deposition and e
Page 36 and 37: Comment Number Comment Summary Resp
Page 38 and 39: Blue Lake Creek Delta Sediment Samp
Page 42 and 43: December 2009 Blue Lake Creek Reser
Page 44: Blue Lake Creek Delta Sediment Samp

final Sedimentation Report - City and Borough of Sitka

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