Calapooia River should not be confused with Calapooya Creek.
| Calapooia River | |
| Name Etymology: | For the Kalapuya people of the Willamette Valley[1] |
| Map Size: | 300 |
| Pushpin Map: | USA Oregon |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the Calapooia River in Oregon |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Oregon |
| Subdivision Type4: | County |
| Subdivision Name4: | Linn |
| Length: | 80miles[2] |
| Discharge1 Avg: | 898cuft/s |
| Source1: | Cascade Range |
| Source1 Coordinates: | 44.265°N -122.3236°W[3] |
| Source1 Elevation: | 4552feet[4] |
| Mouth: | Willamette River |
| Mouth Coordinates: | 44.6389°N -123.11°W |
| Mouth Elevation: | 180feet |
| Basin Size: | 374sqmi |
The Calapooia River is an 80miles tributary of the Willamette River in the U.S. state of Oregon.[2]
The Calapooia flows generally northwest from its source in the Cascade Range near Tidbits Mountain. In its upper reaches, it passes through parts of the Willamette National Forest. Further downstream, it flows through Holley then Crawfordsville and Brownsville in the Willamette Valley before joining the Willamette at Albany. The city of Tangent is also near the river on a branch of one of its downstream tributaries, Lake Creek. The confluence of the two rivers is about 120miles by water from where the Willamette joins the Columbia River[5]
The Calapooia was named for the Kalapuya (also spelled Calapooia), a tribe of Native Americans.[1]
Named tributaries of the river from source to mouth are Eighteen, Treadwell, and United States creeks followed by the North Fork Calapooia River. Then come King, Potts, Barrett/Hands, Washout, McKinley and Blue creeks. Further downstream are Biggs, Fox, Sweet Honey, Cedar, Pugh, Sawyer, Johnson, and Brush creeks. Finally come Warren, Cochrane, Courtney, Lake, and Oak creeks.[5]
The Brownsville Dam was built in the late 1800s, later rebuilt as a small concrete dam. It was removed in 2007 to allow better fish passage and address safety concerns.[6]
The small Sodom Dam and Shearer Dam were both removed in 2011, leaving the Calapooia River free of any human-made dams.