Dexter Lake
| Dexter Reservoir | |
|---|---|
Dexter Lake
|
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| Location | Lane County, Oregon |
| Coordinates | 43°55′25″N 122°48′24″W / 43.92361°N 122.80667°WCoordinates: 43°55′25″N 122°48′24″W / 43.92361°N 122.80667°W |
| Type | Reservoir, mesotrophic |
| Primary inflows | Middle Fork Willamette River |
| Primary outflows | Middle Fork Willamette River |
| Catchment area | 1,002 square miles (2,600 km2) |
| Basin countries | United States |
| Surface area | 1,025 acres (415 ha) |
| Average depth | 27 feet (8.2 m) |
| Max. depth | 56 feet (17 m) |
| Water volume | 29,990 acre feet (36,990,000 m3) |
| Residence time | less than one month |
| Shore length1 | 7 miles (11 km) |
| Surface elevation | 695 feet (212 m) |
| Settlements | Dexter, Lowell |
| References | |
| 1 Shore length is not a well-defined measure. | |
Dexter Reservoir (also known as Dexter Lake) is a reservoir in Lane County, in the U.S. state of Oregon. It is about 16 miles (26 km) southeast of Eugene on the Middle Fork Willamette River, immediately downriver from Lookout Point Lake, another reservoir. The communities of Dexter and Lowell are near the lake. Oregon Route 58 follows the lake's southern shore, while Pengra Road parallels the lake's northern shore as far east as Lowell.
Dexter Dam, 117 feet (36 m) high, impounds up to 29,900 acre feet (36,900,000 m3) of water in the reservoir. The powerhouse at the dam can generate 15,000 kilowatts of electricity. The lake and three adjacent state parks are used for water sports and other outdoor recreation.
The two reservoirs, Dexter and Lookout Point, were created in 1954 when the United States Army Corps of Engineers finished building the dams that contain them. Dexter exists partly to control water surges from the upstream lake during Lookout Point's production of hydroelectricity. Dexter Lake's water levels vary greatly, while the flow below Dexter Dam remains relatively steady. The Dexter and Lookout Point projects are among 13 that the Corps built in the Willamette Valley.
In addition to mitigating floods and generating electricity, Dexter Reservoir is used for recreation. Three state parks are located near the lake. Dexter State Recreation Site is a 100-acre (40 ha) park with picnic tables, toilets, and a boat launch adjacent to Dexter Dam, about 16 miles (26 km) southeast of Eugene. Activities at or near the park include swimming, fishing, sailing, and other water sports. The University of Oregon Rowing Team has practiced continuously on the reservoir since 1967.
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