final Sedimentation Report - City and Borough of Sitka

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December 2009 Blue Lake Creek Reservoir Sedimentation Report Page A-5 Appendix A. Grain Size Data
Blue Lake Creek Delta Sediment Samples Station Delta Material - gravel/sand D65= mm Armor Layer D50= mm Size (mm) Percent Cum % Avg size No. 1 2 4 not taken 8 16 32 64 128 256 mm 0 ft D65= 11.6 mm Sub-Armor Layer D50= 8.0 mm Weight Avg Size (mm) (g) Percent Cum % size 128 0 0% 100% 0 64 0 0% 100% 0 37.5 434 17% 100% 8.54665 16 850 33% 83% 8.82876 8 423 16% 50% 1.97283 4 68 3% 34% 0.15836 2 24 1% 31% 0.02763 1 63 2% 30% 0.03677 0.5 104 4% 28% 0.03032 0.25 242 9% 24% 0.03529 0.125 153 6% 14% 0.01113 0.063 67 3% 8% 0.00245 0.003 147 6% 6% 0.00188 pan 2,574 19.65 mm 0.0645 ft Percent Passing Delta Material - gravel/sand 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0.1 1 10 100 1000 Size (mm) Armor Layer Sub-Armor Layer December 2009 Blue Lake Creek Reservoir Sedimentation Report Page A-6 Appendix A. Grain Size Data
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 40 and 41: pan 3,876 14.36 mm 0.0471 ft Blue L
Page 44: Blue Lake Creek Delta Sediment Samp

final Sedimentation Report - City and Borough of Sitka

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