Newaukum River
| Newaukum River | |
|---|---|
South Fork crossing SR 508 | |
| Location | |
| Country | United States |
| State | Washington |
| County | Lewis |
| Physical characteristics | |
| Source | Confluence of North and South Forks |
| • coordinates | 46°36′18″N 122°51′19″W / 46.60500°N 122.85528°W |
| Mouth | Chehalis River |
• coordinates | 46°39′4″N 122°58′54″W / 46.65111°N 122.98167°W |
• elevation | 161 ft (49 m) |
| Length | 10.9 mi (17.5 km) |
| Basin size | 173 sq mi (450 km2) |
| Discharge | |
| • location | river mile 4.1 near Chehalis, WA |
| • average | 500 cu ft/s (14 m3/s) |
| • minimum | 14 cu ft/s (0.40 m3/s) |
| • maximum | 10,200 cu ft/s (290 m3/s) |
The Newaukum River is a tributary of the Chehalis River in the U.S. state of Washington. It has three main branches, the North Fork, South Fork, and Middle Fork Newaukum Rivers. The length of the three forks and the mainstem river is 56.7 miles (91.2 km).
The river's name comes from the Upper Chehalis word náwaqwəm, meaning "big prairie".