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Systematic Review of JSATS Passage and Survival Data at Bonneville and The Dalles Dams during Alternate Turbine and Spillbay Operations from 2008-2012 MARK WEILAND, BISHES RAYAMAJHI, JINA KIM, CHRISTA WOODLEY, GENE PLOSKEY, JON RERECICH1 AND BRAD EPPARD1 Pacific Northwest National Laboratory 1U.S. Army Corps of Engineers, Portland District, Portland, OR
Introduction: BON
Operation of Bonneville Dam to reduce fish injury B2 operation at low to mid range of 1% peak efficiency
Improve conditions for guided fish in the gatewell May result in unfavorable conditions for turbine passed fish
B1 increase flow to offset reduced discharge at B2
Compare survival within to above the 1% operating range Best operating point (range) as identified by TSP
Spillway survival variability
Erosion of stilling basin or ogees in several spill bays and accumulation of rock
2
Objectives: BON
Analyze 2008-2012 JSATS and operations data to examine survival rates for juvenile salmonids at BON
B2 Turbine Survival Comparison:
Examine survival for fish passing turbines operating across the 1% peak efficiency range
B1 Turbine Survival Comparison:
Examine survival for fish passing turbines operating within the 1% peak efficiency range and above the upper limit of the 1% operating range
Bonneville Spillway:
Examine spillway survival by spillbay with focus on those bays where erosion of the ogee or stilling basin immediately downstream had occurred
3
Methods: BON
B1 turbines Lower quarter of 1% efficiency (Q1) Lower middle quarter of 1% efficiency (Q2) Upper middle quarter of 1% efficiency (Q3) 1% of peak efficiency (Q4) Best operating point/range (BOP) Above best operating point to generator limit (ABOP)
B2 turbines Lower quarter of 1% efficiency (Q1) Lower middle quarter of 1% efficiency (Q2) Upper middle quarter of 1% efficiency (Q3) 1% of peak efficiency (Q4)
BON spillway By bay Group bays
4
Methods: B1 and B2 Binned Operating Ranges
5
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000
32 37 42 47 52 57 62 67 72
Disc
harg
e (c
fs)
HEAD (ft)
B1 Turbine Operating Range Best Op PointUL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1LL_Q1 = LL_1% Above BOP
Best Operating
Point
Q4
Q3
Q1
Q2
10,000
12,000
14,000
16,000
18,000
20,000
32 37 42 47 52 57 62 67 72
Disc
harg
e (c
fs)
HEAD (ft)
B2 Turbine Operating Range (w/STS) UL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1LL_Q1 = LL_1%Q4
Q3
Q2
Q1
BON B1 Survival By Species and Operation
6
Analyses: BON B1 CH1 Passage Distribution
7
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000
32 42 52 62 72
Dis
char
ge (c
fs)
HEAD (ft)
Best Op RangeUL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1LL_Q1 = LL_1%
Best Op Range
Q4 Q3
Q2
Q1
Above BOR
2010 2011 2012
Analyses: BON B1 CH1 Survival by Operating Condition
Surv
ival
Surv
ival
493 332 1603 1935
0.60
0.70
0.80
0.90
1.00
1.10
LL to UL LL to BOP UL to BOP ABOP
22 1008 215 235 145
0.60
0.70
0.80
0.90
1.00
1.10
<1% Q1 Q2 Q3 Q4
Analyses: BON B1 STH Passage Distribution
9
2010 2011 2012
7000
8000
9000
10000
11000
12000
13000
14000
32 42 52 62 72
Dis
char
ge (c
fs)
HEAD (ft)
Best Op RangeUL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1LL_Q1 = LL_1%
Best Op Range
Q4
Q3
Q2
Q1
Above BOR
Analyses: BON B1 STH Survival by Operating Condition
Surv
ival
Surv
ival
493 334 1861 2195
0.60
0.70
0.80
0.90
1.00
1.10
LL to UL LL to BOP UL to BOP ABOP
21 204 1199 306 152
0.60
0.70
0.80
0.90
1.00
1.10
<1% Q1 Q2 Q3 Q4
Analyses: BON B1 CH0 Passage Distribution
11
7000
8000
9000
10000
11000
12000
13000
14000
32 42 52 62 72
Dis
char
ge (c
fs)
HEAD (ft)
Best Op RangeUL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1LL_Q1 = LL_1%
2010 2011 2012
Best Op Range
Q4
Q3
Q2
Q1
Above BOR
Analyses: BON B1 CH0 Survival by Operating Condition
Surv
ival
Surv
ival
380 1407
0.60
0.70
0.80
0.90
1.00
1.10
LL to UL LL to BOP UL to BOP ABOP
1787
3 1187 116 47 57
0.60
0.70
0.80
0.90
1.00
1.10
<1% Q1 Q2 Q3 Q4
BON B1 Survival at Lower & Upper BOP
13
7000
8000
9000
10000
11000
12000
13000
14000
32 42 52 62 72
VR_B1_T_CH1_UBOPVR_B1_T_CH1_LBOPBest Op PointUL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1
Above BOP
Best Op Point
Q4
Q3
Q2
Q1
Analyses: BON B1 CH1 Survival within BOP
14
Analyses: BON B1 STH Survival within BOP
15
7000
8000
9000
10000
11000
12000
13000
14000
32 42 52 62 72
VR_B1_T_STH_UBOPVR_B1_T_STH_LBOPBest Op PointUL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1
Above BOP
Best Op Point
Q4
Q3
Q2
Q1
Analyses: BON B1 CH0 Survival within BOP
16
7000
8000
9000
10000
11000
12000
13000
14000
32 42 52 62 72
VR_B1_T_CH0_LBOPBest Op PointUL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1LL_Q1 = LL_1% Above BOP
Best Op Point
Q4
Q3
Q2
Q1
BON B2 Survival By Species and Operation
17
Analyses: BON B2 CH1 Passage by Quartile
18
Q4 Q3 Q2 Q1
2008 2009 2010 2011 2012
9000
11000
13000
15000
17000
19000
21000
32 42 52 62 72
Dis
char
ge (c
fs)
HEAD (ft)
UL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1LL_Q1 = LL_1%
19
Analyses: BON B2 CH1 Survival by Operating Condition
Surv
ival
24 759 574 267
0.60
0.70
0.80
0.90
1.00
1.10
<1% Q1 Q2 Q3 Q4
469
Analyses: BON B2 STH Passage Distribution
20
2008 2009 2010 2011 2012
Q4 Q3 Q2 Q1
9000
11000
13000
15000
17000
19000
21000
32 42 52 62 72
Dis
char
ge (c
fs)
HEAD (ft)
UL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1LL_Q1 = LL_1%
Analyses: BON B2 STH Survival by Operating Condition
21
14 202 541 376 146
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
<1% Q1 Q2 Q3 Q4
Surv
ival
Analyses: BON B2 CH0 Passage Distribution
22
2008 2009 2010 2011 2012
Q4 Q3 Q2 Q1
9000
11000
13000
15000
17000
19000
21000
32 42 52 62 72
Dis
char
ge (c
fs)
HEAD (ft)
UL_Q4 = UL_1%UL_Q3UL_Q2UL_Q1LL_Q1 = LL_1%
Analyses: BON B2 CH0 Survival by Operating Condition
23
22 1444 298 501 384
0.60
0.70
0.80
0.90
1.00
1.10
<1% Q1 Q2 Q3 Q4
Surv
ival
B2: STS vs No STS, 2008 & 2011
CH1 Estimate s.e. Count
2008 With STS_Q4 0.9320 0.0414 69
Without STS_Q4 0.8299 0.0617 61
2011
With STS_Q4 0.9414 0.0495 50 Without STS_Q4 0.9369 0.0601 37 With STS_Q3_Q4 0.9511 0.0338 125
Without STS_Q3_Q4 0.9771 0.0494 50
STH Estimate s.e. Count
2008 With STS_Q4 0.9339 0.071 29
Without STS_Q4 1.0417 0.2039 24
2011
With STS_Q4 0.9000 0.0987 15 Without STS_Q4 0.9231 0.0739 13 With STS_Q3_Q4 0.8907 0.0553 45
Without STS_Q3_Q4 0.9790 0.0527 22
BON Spillway Surival
25
576 791 783
650 559 385 384 387
309 320
350 317 346
385
454
600
729
351
0.85
0.90
0.95
1.00Yearling Chinook
Analyses: BON Spillway CH1 and STH Survival by Bay
26
Sur
viva
l S
urvi
val
521 623
650
493 459 301
332 322 330 350 318 333
379 450
620 333
717 552
0.85
0.90
0.95
1.00Steelhead
Analyses: BON Spillway CH1 and STH Survival, Grouped Bays
27
2150 1978 1683 1185 1680
0.85
0.90
0.95
1.00
1794 1585 1653 1162 1889
0.85
0.90
0.95
1.00
Surv
ival
Surv
ival
Steelhead
Yearling Chinook
Analyses: BON Spillway Survival by Grouped Bays
28
371 340 242 244
319
479
365 323 260
339 776
617 641 423 712
524 656 477 258 310
0.80
0.85
0.90
0.95
1.00
1.05
Bay01-03 Bay04-07 Bay08-12 Bay13-15 Bay16-18
2008 2010 2011 2012
Sur
viva
l
Yearling Chinook
335 315 276 262 295
344 235 306 178 300 677 524 623 426 861 438 511 448 296
433
0.80
0.85
0.90
0.95
1.00
1.05
Bay01-03 Bay04-07 Bay08-12 Bay13-15 Bay16-18
2008 2010 2011 2012 Steelhead
Sur
viva
l
Analyses: BON Spillway CH0 Survival by Bay
29
Sur
viva
l
496
548 668 1021 599
503 404
322 293 357
425 326 362 310 437
574 622 331
0.85
0.90
0.95
1.00Subyearling Chinook
Analyses: BON Spillway CH0 Survival, Grouped Bays
30
1712 2527 1723 1109 1527
0.85
0.90
0.95
1.00
Surv
ival
Analyses: BON Spillway Survival by Bays, CH0
31
509 513
493 265 499 477 422 326 204
358 726 1592 904 640 670
0.80
0.85
0.90
0.95
1.00
1.05
Bay01-03 Bay04-07 Bay08-12 Bay13-15 Bay16-18
2008 2010 2012 Sub-Yearling Chinook
Sur
viva
l
Analyses: BON Spillway CH1 and STH Survival by Discharge
32
808 3279
175 356 311
193 507 141
137 218 214
241 154
184 134
235 286
269 261 363
209
0%
10%
20%
30%
40%
0.80
0.85
0.90
0.95
1.00
1.05
Discharge (kcfs)
Yearling Chinook
Sur
viva
l
603 2765
158 333 321 269 469
118 121
283 259
211 134 178 122 273 310 245
303 418
190
0%
10%
20%
30%
40%
0.80
0.85
0.90
0.95
1.00
1.05
Discharge (kcfs)
Sur
viva
l
Steelhead
Analyses: BON Spillway CH0 Survival by Discharge
33
1279 873
536 495
937
457 1192 870 868
303 100
214 129
256 89
0%
5%
10%
15%
20%
25%
30%
35%
0.85
0.90
0.95
1.00
1.05
y = 0.0004x + 0.8979 R² = 0.6299
0.90
0.92
0.94
0.96
0.98
1.00
80 100 120 140 160 180 200 220 240
Surv
ival
Discharge (kcfs)
Sur
viva
l
Discharge (kcfs)
BON Survival by Tailwater Elevation
34
90 236
706 928 780
0%
10%
20%
30%
40%
0.80
0.85
0.90
0.95
1.00
1.05
≤ 5m 6m 7m 8m ≥ 9m
92 165
623 862 708
0%
10%
20%
30%
40%
0.85
0.90
0.95
1.00
1.05
≤ 5m 6m 7m 8m ≥ 9m
Analyses: BON B1 Survival by Tailwater Level
Yearling Chinook
Sur
viva
l
Steelhead
Bin S. Estimate +95 CI -95 CI ≤ 5m 0.9868 1.0378 0.9358
6m 1.0052 1.0350 0.9754
7m 0.9643 0.9800 0.9486
8m 0.9635 0.9766 0.9504
≥ 9m 0.9652 0.9915 0.9389
Bin S. Estimate +95 CI -95 CI ≤ 5m 0.8575 0.9408 0.7742 6m 0.9403 0.9732 0.9074 7m 0.9369 0.9551 0.9187 8m 0.9468 0.9617 0.9319
≥ 9m 0.9306 0.9559 0.9053
35
Sur
viva
l Tim
e at TWE
L
Time at TW
EL
103
132 568 815
172
0%
10%
20%
30%
40%
0.80
0.85
0.90
0.95
1.00
≤ 5m 6m 7m 8m ≥ 9m
Analyses: BON B1 Survival by Tailwater Level
Bin S. Estimate +95 CI -95 CI
≤ 5m 0.8939 0.9537 0.8341
6m 0.9811 1.0070 0.9552
7m 0.9604 0.9776 0.9432
8m 0.9517 0.9668 0.9366
≥ 9m 0.9483 0.9816 0.9150
Sur
viva
l
36
Sub-Yearling Chinook
Time at TW
EL
1067 367
243
216 106
0%
10%
20%
30%
40%
0.50
0.60
0.70
0.80
0.90
1.00
≤ 5m 6m 7m 8m ≥ 9m
Analyses: BON B2 Survival by Tailwater Level
Sur
viva
l
Sur
viva
l
37
Time at TW
EL
Time at TW
EL
Bin S. Estimate +95 CI -95 CI
≤ 5m 0.8596 0.8819 0.8373
6m 0.8955 0.9288 0.8622
7m 0.9846 1.0052 0.9640
8m 0.8953 0.9378 0.8528
≥ 9m 0.9144 0.9775 0.8513
Bin S. Estimate +95 CI -95 CI
≤ 5m 0.877 0.0089 1547
6m 0.951 0.0106 556
7m 0.958 0.0102 490
8m 0.960 0.0091 534
≥ 9m 0.917 0.0222 264
Yearling Chinook
Steelhead
1547
556 490 534
264
0%
10%
20%
30%
40%
0.80
0.85
0.90
0.95
1.00
≤5m 6m 7m 8m ≥9m
1227 280 398 1375 315
0%
10%
20%
30%
40%
0.50
0.60
0.70
0.80
0.90
1.00
≤ 5m 6m 7m 8m ≥ 9m
Bin S. Estimate +95 CI -95 CI ≤ 5m 0.8720 0.8910 0.8530 6m 0.9440 0.9712 0.9168 7m 0.9454 0.9685 0.9223 8m 0.9522 0.9640 0.9404
≥ 9m 0.9663 0.9867 0.9459
Analyses: BON B2 Survival by Tailwater Level
Sur
viva
l
38
Time at TW
EL
Sub-Yearling Chinook
1197 1678
1518 1886 2397
0%
10%
20%
30%
40%
0.85
0.90
0.95
1.00
≤ 5m 6m 7m 8m ≥ 9m
892 1413
1385 1955
2490
0%
10%
20%
30%
40%
0.85
0.90
0.95
1.00
≤ 5m 6m 7m 8m ≥ 9m
Analyses: BON Spillway Survival by Tailwater Level
Sur
viva
l
Sur
viva
l
Bin S. Estimate + 95 CI -95 CI
≤ 5m 0.9333 0.9482 0.9184 6m 0.9505 0.9638 0.9372 7m 0.9331 0.9460 0.9202 8m 0.9434 0.9550 0.9318
≥ 9m 0.9461 0.9624 0.9298
Bin S. Estimate + 95 CI -95 CI
≤ 5m 0.9474 0.9641 0.9307 6m 0.9543 0.9686 0.9400 7m 0.9339 0.9474 0.9204 8m 0.9378 0.9496 0.9260
≥ 9m 0.9613 0.9750 0.9476
39
Time at TW
EL
Time at TW
EL
Yearling Chinook
Steelhead
996 683
2478 4031 410
0%
10%
20%
30%
40%
0.85
0.90
0.95
1.00
≤ 5m 6m 7m 8m ≥ 9m
40
Analyses: BON Spillway Survival by Tailwater Level
Bin S. Estimate + 95 CI -95 CI
≤ 5m 0.9050 0.9234 0.8866
6m 0.9210 0.9418 0.9002
7m 0.9508 0.9598 0.9418
8m 0.9672 0.9729 0.9615
≥ 9m 0.9709 0.9872 0.9546
Sur
viva
l
Time at TW
EL
Sub-Yearling Chinook
BON Egress
41
BON: CH1 Tailrace Egress B1 and B2
42
BON ROUTE Treatment Mean StdErr Min Max Median N
B1
ABO 4.23 0.70 0.21 200.41 0.30 485
BOP 5.90 1.67 0.24 281.36 0.37 286
Q4 3.55 0.57 0.24 273.35 0.37 860
Q3 2.43 0.82 0.23 110.46 0.38 189
Q2 3.36 1.15 0.28 102.24 0.44 136
Q1 6.40 2.10 0.27 280.27 0.46 234
<1% 15.43 14.73 0.25 310.11 0.53 21
B2
Q4 5.92 0.29 0.25 42.82 6.79 340
Q3 3.85 0.35 0.29 14.63 0.75 166
Q2 3.52 0.26 0.25 33.28 0.71 452
Q1 4.29 0.27 0.28 61.72 0.71 685
<1% 8.92 0.79 0.58 18.77 8.45 26
BON: STH Tailrace Egress B1 and B2
BON ROUTE Treatment Mean StdErr Min Max Median N
B1
ABO 15.11 2.21 0.20 415.51 0.42 476
BOP 23.96 3.49 0.25 404.61 0.58 282
Q4 17.14 1.39 0.24 419.08 0.52 1013
Q3 7.75 2.10 0.26 225.21 0.63 146
Q2 9.84 4.57 0.25 589.93 0.57 146
Q1 8.51 1.69 0.25 254.90 0.60 301
<1% 6.61 4.55 0.31 87.32 0.77 19
B2
Q4 5.95 0.33 0.22 21.13 6.95 165
Q3 5.08 1.13 0.21 105.44 0.83 116
Q2 3.68 0.48 0.22 138.40 0.82 333
Q1 3.40 0.24 0.26 48.20 0.79 492
<1% 5.98 0.86 0.25 10.24 6.74 14
BON: CH0 Tailrace Egress B1 and B2
BON ROUTE Treatment Mean StdErr Min Max Median N
B1
BOP 4.33 0.68 0.27 127.56 0.40 363
Q4 3.81 0.68 0.24 622.50 0.40 1148
Q3 1.67 0.53 0.25 44.93 0.39 116
Q2 1.22 0.56 0.32 31.24 0.44 56
Q1 2.17 1.45 0.29 68.26 0.46 47
<1% 0.81 0.13 0.56 0.97 0.90 3
B2
Q4 3.62 0.13 0.19 32.29 0.72 1320
Q3 4.98 1.47 0.21 530.52 0.74 364
Q2 4.07 0.24 0.22 18.89 0.79 411
Q1 6.39 0.32 0.29 26.43 7.45 266
<1% 11.35 1.64 1.03 27.60 11.01 14
BON: CH1 Tailrace Egress Spillway
SP10 Mean StdErr Min Max Median N 70 0.83 0.16 0.38 3.07 0.53 18 80 1.76 1.13 0.33 306.51 0.51 271 90 1.54 0.13 0.32 16.68 0.48 472
100 1.88 0.09 0.19 157.14 0.43 2992 110 0.86 0.21 0.29 26.45 0.39 146 120 1.14 0.18 0.26 38.92 0.38 288 130 0.39 0.03 0.26 6.73 0.35 251 140 0.53 0.12 0.26 12.85 0.34 126 150 1.69 0.16 0.23 18.30 0.33 352 160 0.32 0.00 0.24 0.51 0.31 113 170 3.84 0.86 0.25 68.85 0.35 84 180 2.59 0.26 0.23 17.49 0.33 176 190 6.35 0.31 0.22 42.81 6.41 175 200 4.32 0.29 0.20 16.78 5.25 199 210 5.15 0.30 0.13 16.17 6.03 119 220 6.02 0.18 0.22 20.18 6.05 154 230 3.62 0.37 0.01 12.29 5.11 89 240 2.84 0.33 0.01 12.26 0.40 105 250 0.56 0.13 0.02 11.04 0.28 125 260 0.29 0.01 0.01 0.94 0.27 136 270 0.29 0.02 0.02 2.11 0.27 110 280 0.29 0.01 0.01 1.14 0.28 129 290 0.26 0.02 0.01 0.61 0.26 39 300 0.27 0.04 0.01 0.70 0.28 16
BON: STH Tailrace Egress Spillway
SP10 Mean StdErr Min Max Median N 70 0.50 0.08 0.39 0.65 0.47 3 80 0.66 0.05 0.35 7.76 0.47 163 90 2.21 0.34 0.31 91.65 0.45 411
100 1.97 0.28 0.28 614.65 0.42 2537 110 0.64 0.10 0.29 6.62 0.38 123 120 1.95 0.17 0.27 11.14 0.38 292 130 0.57 0.07 0.26 7.17 0.35 252 140 0.53 0.09 0.25 11.92 0.32 175 150 1.40 0.13 0.23 12.13 0.33 321 160 0.46 0.07 0.25 5.74 0.31 105 170 3.18 0.34 0.22 13.22 3.05 73 180 2.57 0.20 0.11 10.49 0.38 213 190 5.17 0.37 0.22 70.37 5.14 205 200 3.41 0.22 0.05 14.68 4.46 167 210 4.38 0.25 0.19 11.32 4.94 95 220 5.10 0.13 0.19 9.19 5.13 132 230 3.85 0.34 0.10 16.41 4.89 75 240 2.04 0.24 0.11 7.43 0.42 90 250 0.57 0.14 0.01 13.65 0.30 116 260 0.33 0.02 0.02 2.15 0.29 133 270 0.55 0.22 0.03 22.94 0.31 103 280 0.31 0.02 0.01 1.73 0.29 142 290 0.32 0.03 0.03 0.70 0.29 39 300 0.30 0.05 0.01 0.53 0.33 8
BON: CH0 Tailrace Egress Spillway
SP10 v StdErr Min Max Median N
80 6.72 0.29 0.40 18.00 6.88 130
90 6.34 0.15 0.34 40.68 7.15 985
100 1.67 0.11 0.31 21.46 0.47 814
110 5.75 0.22 0.31 47.89 6.91 474
120 1.08 0.10 0.27 11.91 0.38 471
130 2.69 0.16 0.26 26.07 0.37 860
140 2.85 0.22 0.26 24.85 0.36 408
150 0.99 0.08 0.23 50.35 0.33 1130
160 1.38 0.11 0.23 23.80 0.31 801
170 1.71 0.13 0.23 23.51 0.31 744
180 1.26 0.80 0.22 217.95 0.30 275
190 0.44 0.11 0.23 10.71 0.28 99
200 3.36 0.40 0.21 22.72 0.29 205
210 0.35 0.04 0.21 4.13 0.28 126
220 0.29 0.02 0.19 4.40 0.26 242
230 0.29 0.02 0.19 1.06 0.25 78
Conclusions: BON
48
B1 There was not a difference in survival for salmonids passing within the 1% of peak operating efficiency and salmonids passing at operations above the upper 1% operating efficiency
B2 Lower survival for CH1 in Q4 range No difference in survival for STH across operating range No difference in survival for CH0 across operating range
Spillway No obvious bay affect Lower survival of CH1 and STH above 290 kcfs discharge Trend of lower survival for CH0 at low discharge levels
Introduction: TDA
Introduction High flows forced spill discharge at bays outside the new tailrace spillway wall. Concern of lower survival due to predation
Objective Examined spillway passage survival for juvenile salmonids passing on the north (spillbays 1-8) and south (spillbays 9-23) of the new spill wall at TDA
2010-2012 JSATS datasets
49
6021 487
0.85
0.90
0.95
1.00
Bay01-08 Bay09-22
Analyses: TDA Survival Within and Outside of Spill Wall
50
Yearling Chinook
Sur
viva
l
Sur
viva
l
Steelhead
6594 666
0.85
0.90
0.95
1.00
Bay01-08 Bay09-22
5040 141
0.85
0.90
0.95
1.00
Bay01-08 Bay09-22
Subyearling Chinook
Sur
viva
l
Bay09-23
Bay09-23
Bay09-23
435 231
0.85
0.90
0.95
1.00
Bay09-12 Bay13-22
Sur
viva
l
304 183
0.85
0.90
0.95
1.00
Bay09-12 Bay13-22
Analyses: TDA Survival Outside of Spill Wall, Grouped Bays
51
Yearling Chinook
Sur
viva
l
Steelhead
Subyearling Chinook
Sur
viva
l
Bay13-23
Bay13-23
Bay13-23
1589 2360 1976 730 1080
0%
10%
20%
30%
40%
0.80
0.85
0.90
0.95
1.00
<=72k 96k 120k 144k >=168k
1350 2523 2249 946 1320
0%
10%
20%
30%
40%
0.80
0.85
0.90
0.95
1.00
<=72k 96k 120k 144k >=168k
Analyses: TDA Survival Grouped by Flow
52
Sur
viva
l %
Time at D
ischarge S
urvi
val
%Tim
e at Discharge
Steelhead
Yearling Chinook
710
646 3600 915 889
0%
10%
20%
30%
40%
50%
0.80
0.85
0.90
0.95
1.00
<=72k 96k 120k 144k >=168k
Analyses: TDA Survival Grouped by Flow
53
Subyearling Chinook
Sur
viva
l %
Time at D
ischarge
TDA Spillway
54
Analyses: TDA Survival by Bay for All Years
55
513 704 710 808 892 925 1034 2150
0.80
0.85
0.90
0.95
1.00
Bay 01 Bay 02 Bay 03 Bay 04 Bay 05 Bay 06 Bay 07 Bay 08
Sur
viva
l
Yearling Chinook
Steelhead
Sur
viva
l
581 727 715 787 747 980 1113 2740
0.80
0.85
0.90
0.95
1.00
Bay 01 Bay 02 Bay 03 Bay 04 Bay 05 Bay 06 Bay 07 Bay 08
Analyses: TDA Survival by Bay for All Years
56
410 654 750 787 833 901 864 1561
0.80
0.85
0.90
0.95
1.00
Bay 01 Bay 02 Bay 03 Bay 04 Bay 05 Bay 06 Bay 07 Bay 08
Sur
viva
l
Sub-Yearling Chinook
Analyses: TDA Survival by Flow, 2010, 2011, 2012
57
816 773 502 1488 890 996 563 191 335 1181
0%
10%
20%
30%
40%
0.75
0.80
0.85
0.90
0.95
1.00
<=70k 80k 90k 100k 110k 120k 130k 140k 150k >=160k
Sur
viva
l %
Time at D
ischarge
769 581 507 1546 1071 1158 599 224 436 1497
0%
10%
20%
30%
40%
0.75
0.80
0.85
0.90
0.95
1.00
<=70k 80k 90k 100k 110k 120k 130k 140k 150k >=160k
Sur
viva
l %
Time at D
ischarge
Steelhead
Yearling Chinook
298
412
314 153 466 986 2436
562 152 981
0%
10%
20%
30%
40%
0.75
0.80
0.85
0.90
0.95
1.00
<=70k 80k 90k 100k 110k 120k 130k 140k 150k >=160k
Analyses: TDA Survival by Flow, 2010, 2011, 2012
58
Sub-Yearling Chinook
Sur
viva
l %
Time at D
ischarge
TDA Egress
59
TDA: CH1 Tailrace Egress Spillway
60
CH1 SP24 Min Max Mean StdErr Median N
TR_EGR_TIME
48 0.28 153.02 1.69 0.83 0.47 210
72 0 367.24 1.14 0.35 0.36 1233
96 0 475.07 2.14 0.69 0.27 858
120 0.01 156.4 0.9 0.34 0.21 663
144 0.1 120.33 0.49 0.26 0.16 464
168 0.11 0.44 0.16 0 0.14 227
312 0.14 0.14 0.14 0 0.14 2
TDA: STH Tailrace Egress Spillway
STH SP24 Min Max Mean StdErr Median N
TR_EGR_TIME
48 0.27 201.79 1.63 1.05 0.42 192
72 0 24.1 0.44 0.03 0.33 1060
96 0 52.84 0.43 0.08 0.25 1006
120 0 55.83 0.31 0.07 0.2 838
144 0.1 3.81 0.21 0.01 0.15 610
168 0.1 0.78 0.16 0 0.14 338
312 0.14 0.14 0.14 0 0.14 2
TDA: CH0 Tailrace Egress Spillway
CH0 SP24 Mean StdErr Min Max Mean N
TR_EGR_TIME
48 5.98 5.39 0.26 194.7 5.98 36
72 0.73 0.15 0.16 65.88 0.73 560
96 0.8 0.29 0.11 145.41 0.8 586
120 0.57 0.13 0.12 324.61 0.57 3436
144 0.84 0.42 0.11 324.19 0.84 870
168 1.82 0.98 0.11 449.89 1.82 648
216 18.26 12.55 0.17 324.49 18.26 36
240 0.24 0.01 0.15 0.48 0.24 84
312 0.18 0 0.12 0.54 0.18 168
Conclusions: TDA
There was not a difference in survival of juvenile salmonids passing at spillbays 1-8 and spillbays 9-23 There was lower survival of CH0 at discharge below 72 kcfs
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