Table 1. Physical characteristics of selected rivers draining the Olympic Peninsula, Washington.
| Watershed | Size of drainage (km2) | River length (km) | Linear stream length (km) | Avg.flow (m3) | Avg. summer flow (m3) | Avg. winter flow (m3) | Extreme flows (m3) |
||||||
| Max | Min | ||||||||||||
|
Rivers draining south into the Chehalis River and Grays Harbor |
|||||||||||||
| Humptulips | 635 | 98 | 515 | 42 | 7.08 | 113.24 | 934.23 | 2.32 | |||||
| Hoquiam | 233 | 28 | 211 | 10 | 3.54 | 14.16 | na | 0.17 | |||||
| Wishkah | 264 | 60 | 237 | 14 | 0.99 | 28.31 | 209.49 | 0.65 | |||||
| Wynochee | 505 | 102 | 401 | 35 | 4.25 | 70.78 | 693.60 | 0.65 | |||||
| Satsop | 774 | 46 | 568 | 58 | 8.49 | 118.90 | 1319.25 | 4.70 | |||||
| Cloquallium | 168 | 33 | 191 | 11 | 0.99 | 16.99 | 103.33 | 1.70 | |||||
| Chehalis | 6,734 | 204 | 5,395 | 198 | 24.06 | 481.27 | 1514.59 | 17.55 | |||||
|
Rivers Draining east into Hood Canal |
|||||||||||||
| Skokomish | 622 | 67 | 547 | 34 | 7.08 | 65.11 | 764.37 | 3.54 | |||||
| Hamma Hamma | 220 | 29 | 177 | 10 | 2.83 | 14.86 | 36.24 | 1.70 | |||||
| Duckabush | 174 | 39 | 191 | 12 | 4.25 | 16.99 | 253.66 | 1.27 | |||||
| Dosewalips | 243 | 46 | 274 | 13 | 5.66 | 15.00 | 36.80 | 3.68 | |||||
|
Rivers draining north into the Strait of Juan de Fuca | |||||||||||||
| Dungeness | 513 | 51 | 410 | 11 | 5.10 | 11.61 | 193.07 | 1.84 | |||||
| Elwha | 831 | 72 | 785 | 43 | 17.55 | 53.79 | 1,177.70 | 9.77 | |||||
| Hoko | 132 | 40 | 169 | 12 | 1.13 | 26.05 | 399.17 | 0.34 | |||||
|
Rivers draining west into the Pacific Ocean |
|||||||||||||
| Ozette | 228 | 21 | 135 | 14 | 1.42 | 33.97 | 368.03 | 1.42 | |||||
| Quillayute | 1,629 | 113 | 1,208 | 126 | 28.31 | 342.27 | 2,881.96 | 7.67 | |||||
| Dickey | 223 | 28 | 182 | 15 | 1.42 | 39.63 | 489.76 | 0.25 | |||||
| Soleduck | 567 | 105 | 418 | 37 | 12.74 | 104.75 | 588.85 | 4.39 | |||||
| Calawal | 334 | 50 | 315 | 30 | 3.40 | 76.44 | 639.81 | 0.42 | |||||
| Bogachiel | 288 | 75 | 209 | 30 | 3.96 | 81.82 | 673.78 | 2.35 | |||||
| Hoh | 774 | 90 | 502 | 62 | 30.01 | 90.59 | 1460.80 | 11.21 | |||||
| Queets | 1,166 | 83 | 870 | 121 | 28.73 | 226.48 | 3,691.62 | 10.42 | |||||
| Raft | 241 | 29 | 177 | 16 | 4.25 | 28.31 | 481.27 | 0.28 | |||||
| Quinault | 1,124 | 111 | 899 | 105 | 30.57 | 178.35 | 2270.46 | 9.06 | |||||
| Watershed | Size of drainage (km2) | River length (km) | Linear stream length (km) | Avg.flow (m3) | Avg. summer flow (m3) | Avg. winter flow (m3) | Extreme flows (m3) |
||||||
| Max | Min | ||||||||||||
| Moclips | 101 | 20 | 58 | 6 | 1.13 | 14.16 | 120.60 | 0.28 | |||||
| Copalis | 106 | 34 | 80 | 7 | na | na | na | na | |||||