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Adult Upper Columbia River Chinook Spring ESU Historical and Current Year Mean Travel Time Estimates

Click on a reach travel time in the table to view a plot of the reach-specific daily mean travel time as it varies throughout the season. The date of the daily mean travel time is determined by and plotted on the reach entry date, i.e., the date of the last detection for each PIT-tagged fish at the first project in the reach. The plots include a 95% confidence interval for each reach entry date on which more than one fish started traversing the reach.


Harmonic mean travel times by reach and year
Reach 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
BON-TDA                       1.94 1.92 1.48 1.73 2.37 2.24 1.87 2.25 1.76 1.96
BON-MCN 7.49 8.14 5.19 5.70 5.99 5.43 6.36 5.72 5.59 7.24 6.38 5.87 5.81 4.75 5.53 6.49 6.41 5.67 6.40 5.75 5.89
BON-PRD   14.55 9.87 10.24 10.11 10.97 11.72 9.85 10.24 13.52 12.09 11.66 10.81 8.61 9.64 11.66 11.24 10.29 11.73 10.96 10.99
BON-WEL 23.55 30.98 20.46 19.66 19.18 22.36 20.63 17.10 17.29 21.58 18.03 18.73 18.72 15.62 17.29 18.67 18.16 16.51 18.84 16.61 18.15
BON-RIA   18.57 15.23 13.62 13.99 15.90 14.90 12.92 13.67 17.16 15.20 15.18 15.20 11.66 12.64 15.17 14.24 13.56 14.96 14.42 14.33
BON-RRH         15.18 17.89 16.41 13.56 14.59 18.65 15.85 16.10 16.30 12.91 14.29 16.01 15.40 14.36 16.29 14.17 15.11
BON-JDA                                 3.66 3.18 3.66 3.20 3.35
TDA-MCN                       3.85 3.72 3.16 3.69 3.88 3.88 3.67 4.08 3.83 3.83
TDA-PRD                       9.65 8.73 7.02 7.84 9.04 8.70 8.31 9.46 8.91 8.91
TDA-WEL                       16.88 16.61 13.93 15.34 15.99 15.39 14.49 16.71 14.91 16.16
TDA-RIA                       13.21 13.05 10.05 10.89 12.51 11.58 11.53 12.77 12.05 12.21
TDA-RRH                       14.23 14.19 11.29 12.44 13.38 12.75 12.35 14.13 12.50 13.15
TDA-JDA                                 1.20 1.15 1.25 1.24 1.23
JDA-MCN                                 2.50 2.37 2.51 2.34 2.43
JDA-PRD                                 7.24 6.87 7.65 7.21 7.43
JDA-WEL                                 13.93 13.13 14.82 13.62 14.72
JDA-RIA                                 10.14 9.88 10.88 10.31 10.70
JDA-RRH                                 11.39 10.98 12.35 11.22 11.75
MCN-PRD   5.70 4.44 4.44 3.85 5.22 4.51 3.89 4.38 5.37 5.16 5.31 4.57 3.61 3.90 4.74 4.45 4.25 4.90 4.53 4.71
MCN-WEL 15.48 22.07 14.54 13.64 12.91 16.05 13.68 11.43 11.83 13.64 11.65 12.88 12.57 10.59 11.31 11.69 11.21 10.52 12.13 11.19 12.07
MCN-RIA   10.99 9.34 7.81 7.53 9.76 7.54 6.76 7.74 8.96 8.41 8.74 8.80 6.59 6.85 8.09 7.38 7.23 8.15 7.63 7.94
MCN-RRH         8.92 11.62 9.83 8.14 9.14 10.95 9.37 10.22 10.12 7.96 8.48 9.25 8.75 8.36 9.61 8.76 9.15
PRD-WEL   12.11 9.10 8.32 8.69 10.40 8.17 6.85 7.64 7.36 7.01 6.99 7.28 6.69 6.92 6.36 6.25 5.99 6.88 6.29 7.13
PRD-RIA   4.55 4.01 3.05 3.30 3.78 2.69 2.72 3.16 3.28 3.00 2.94 3.56 2.75 2.70 2.87 2.69 2.67 2.97 2.81 2.92
PRD-RRH         4.66 5.49 4.33 3.76 4.66 4.76 4.52 4.34 4.85 4.11 4.17 4.10 4.01 3.86 4.39 3.89 4.31
RIA-RRH         1.16 1.37 1.26 1.00 1.24 1.25 1.18 1.10 1.10 1.12 1.06 1.11 1.23 1.07 1.20 1.04 1.20
WEL-RIA   -6.02 -5.05 -4.56 -4.81 -5.50 -3.98 -4.19 -4.28 -4.07 -3.95 -3.72 -3.87 -4.06 -4.23 -3.58 -3.86 -3.78 -4.17 -3.61 -4.63
WEL-RRH         -3.28 -3.74 -2.59 -2.86 -2.84 -2.54 -2.48 -2.43 -2.44 -2.56 -2.68 -2.24 -2.21 -2.45 -2.69 -2.36 -3.07
Standard errors by reach and year
Reach 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
BON-TDA                       0.03 0.03 0.02 0.04 0.06 0.05 0.04 0.04 0.04 0.03
BON-MCN 0.39 0.65 0.07 0.13 0.16 0.28 0.27 0.14 0.08 0.11 0.09 0.10 0.07 0.05 0.10 0.14 0.14 0.10 0.13 0.13 0.07
BON-PRD   1.13 0.19 0.21 0.22 0.85 0.44 0.20 0.13 0.17 0.17 0.19 0.12 0.08 0.16 0.23 0.21 0.16 0.23 0.24 0.13
BON-WEL 1.42 2.90 0.58 0.48 0.49 2.64 1.58 0.85 0.56 0.29 0.33 0.38 0.25 0.19 0.49 0.52 0.41 0.34 0.46 0.32 0.25
BON-RIA   1.49 0.65 0.28 0.35 1.52 0.49 0.29 0.20 0.24 0.20 0.24 0.21 0.12 0.24 0.37 0.33 0.30 0.29 0.50 0.17
BON-RRH         0.38 1.74 0.72 0.62 0.33 0.26 0.27 0.29 0.20 0.14 0.31 0.39 0.35 0.31 0.38 0.25 0.20
BON-JDA                                 0.09 0.06 0.08 0.08 0.05
TDA-MCN                       0.07 0.05 0.04 0.07 0.08 0.08 0.07 0.09 0.08 0.05
TDA-PRD                       0.17 0.11 0.07 0.13 0.17 0.15 0.13 0.19 0.15 0.10
TDA-WEL                       0.37 0.23 0.18 0.45 0.43 0.33 0.31 0.43 0.30 0.23
TDA-RIA                       0.22 0.19 0.11 0.21 0.29 0.25 0.26 0.26 0.21 0.15
TDA-RRH                       0.27 0.18 0.12 0.28 0.30 0.27 0.27 0.34 0.23 0.18
TDA-JDA                                 0.03 0.03 0.04 0.04 0.02
JDA-MCN                                 0.04 0.04 0.04 0.04 0.03
JDA-PRD                                 0.12 0.10 0.14 0.12 0.09
JDA-WEL                                 0.29 0.28 0.35 0.28 0.21
JDA-RIA                                 0.22 0.21 0.20 0.16 0.13
JDA-RRH                                 0.23 0.23 0.27 0.21 0.16
MCN-PRD   0.49 0.10 0.09 0.07 0.51 0.22 0.08 0.06 0.07 0.09 0.10 0.07 0.04 0.06 0.11 0.08 0.07 0.10 0.09 0.06
MCN-WEL 1.03 2.13 0.46 0.37 0.38 2.21 1.30 0.65 0.45 0.21 0.23 0.31 0.20 0.15 0.37 0.34 0.25 0.24 0.33 0.24 0.20
MCN-RIA   0.87 0.47 0.18 0.21 1.13 0.33 0.16 0.13 0.13 0.12 0.17 0.15 0.09 0.14 0.21 0.18 0.17 0.17 0.14 0.11
MCN-RRH         0.24 1.33 0.59 0.44 0.25 0.18 0.18 0.22 0.15 0.10 0.20 0.23 0.19 0.19 0.24 0.19 0.15
PRD-WEL   1.25 0.29 0.31 0.32 1.41 1.04 0.47 0.32 0.12 0.21 0.22 0.15 0.13 0.27 0.22 0.16 0.16 0.22 0.17 0.14
PRD-RIA   0.30 0.17 0.10 0.15 0.37 0.13 0.09 0.07 0.06 0.06 0.08 0.10 0.06 0.08 0.10 0.08 0.08 0.08 0.06 0.05
PRD-RRH         0.19 0.59 0.40 0.27 0.17 0.08 0.14 0.13 0.10 0.08 0.13 0.12 0.10 0.10 0.13 0.10 0.09
RIA-RRH         0.04 0.16 0.14 0.07 0.05 0.03 0.03 0.03 0.02 0.03 0.04 0.05 0.06 0.04 0.04 0.04 0.03
WEL-RIA   0.70 0.22 0.22 0.21 0.58 0.61 0.38 0.19 0.09 0.13 0.12 0.10 0.12 0.23 0.17 0.16 0.19 0.17 0.14 0.13
WEL-RRH         0.18 0.40 0.41 0.24 0.13 0.06 0.09 0.09 0.06 0.08 0.15 0.10 0.09 0.10 0.12 0.11 0.10
Counts by reach and year
Reach 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
BON-TDA 0 0 0 0 0 0 0 0 0 0 0 348 444 402 262 198 238 260 292 269 462
BON-MCN 36 27 123 120 104 18 56 121 319 542 401 277 412 362 213 163 189 214 193 232 391
BON-PRD 0 23 97 112 102 17 54 115 302 533 311 263 404 340 197 155 179 205 166 228 388
BON-WEL 25 23 116 115 86 8 14 25 55 253 160 130 261 239 97 76 108 133 85 112 214
BON-RIA 0 14 47 101 87 13 48 99 277 413 348 243 265 275 155 95 108 128 142 215 379
BON-RRH 0 0 0 0 80 14 17 27 108 289 194 153 314 264 121 82 102 122 87 104 206
BON-JDA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 213 229 237 238 412
TDA-MCN 0 0 0 0 0 0 0 0 0 0 0 282 414 372 215 167 193 216 196 234 396
TDA-PRD 0 0 0 0 0 0 0 0 0 0 0 268 406 348 200 159 183 207 170 230 393
TDA-WEL 0 0 0 0 0 0 0 0 0 0 0 133 263 247 99 80 111 135 89 114 216
TDA-RIA 0 0 0 0 0 0 0 0 0 0 0 247 266 284 157 96 111 129 146 218 384
TDA-RRH 0 0 0 0 0 0 0 0 0 0 0 156 316 273 124 86 105 124 91 107 208
TDA-JDA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 218 231 238 241 418
JDA-MCN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 190 214 193 231 394
JDA-PRD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 181 205 168 228 392
JDA-WEL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 110 134 87 113 215
JDA-RIA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 111 127 145 215 383
JDA-RRH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 104 123 90 106 207
MCN-PRD 0 24 107 115 103 17 53 114 303 530 312 265 402 348 200 158 178 206 169 230 389
MCN-WEL 27 23 126 118 86 8 14 26 55 250 160 133 261 247 99 80 108 134 88 114 214
MCN-RIA 0 14 51 103 87 13 47 98 278 414 349 244 264 284 157 96 107 128 145 217 380
MCN-RRH 0 0 0 0 80 14 17 28 108 286 193 156 314 273 124 86 102 123 90 106 206
PRD-WEL 0 30 147 111 86 10 14 27 71 258 119 138 266 237 100 81 110 136 89 116 216
PRD-RIA 0 22 92 99 87 19 49 106 315 430 301 256 271 284 160 97 111 131 152 219 386
PRD-RRH 0 0 0 0 80 17 17 29 128 296 156 164 320 262 125 87 104 126 92 107 208
RIA-RRH 0 0 0 0 77 15 18 29 126 228 200 154 230 219 98 52 65 73 87 109 212
WEL-RIA 0 27 100 101 75 10 11 22 60 185 158 129 195 201 77 48 69 68 77 102 211
WEL-RRH 0 0 0 0 69 10 11 23 62 253 167 139 272 257 101 82 98 122 84 105 201

Last Update: Thu Sep 29 18:59:01 2022

Data Courtesy of Pacific States Marine Fisheries Commission

The Upper Columbia River Spring Chinook ESU includes naturally spawned spring-run Chinook salmon originating from Columbia River tributaries upstream of the Rock Island Dam and downstream of Chief Joseph Dam (excluding the Okanogan River subbasin). Also, spring-run Chinook salmon from six artificial propagation programs: Twisp River Program, Chewuch River Program, Methow Program, Winthrop National Fish Hatchery Program, Chiwawa River Program, and White River Program. Definition implemented by Columbia River DART: March 2010.