Agate Lake
| Agate Lake | |
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Agate Lake from Roxy Ann Peak
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A map of Agate Lake
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| Location | Jackson County, Oregon |
| Coordinates | 42°24′39.05″N 122°46′13.65″W / 42.4108472°N 122.7704583°WCoordinates: 42°24′39.05″N 122°46′13.65″W / 42.4108472°N 122.7704583°W |
| Type | Reservoir |
| Primary inflows | Dry Creek |
| Primary outflows | Dry Creek |
| Basin countries | United States |
| Surface area | 216 acres (0.87 km2) |
| Water volume | 4,782 acre feet (5,899,000 m3) |
| Shore length1 | 3 miles (4.8 km) |
| Surface elevation | 1,510 feet (460 m) |
| 1 Shore length is not a well-defined measure. | |
Agate Lake is a reservoir located 1,510 feet (460 m) above sea level in Jackson County, Oregon, United States. It is 13 miles (21 km) northeast of Medford, just north of Roxy Ann Peak. The lake is formed by the 86-foot (26 m) tall Agate Dam, which impounds Dry Creek, in the Rogue River watershed.
Construction of Agate Dam was authorized in 1962, started in 1965, and completed in 1966. The 86-foot (26 m) tall earthfill embankment dam was completed by the Talent Division of the Rogue River Basin Project, impounding Dry Creek. Two canals were also built, diverting water from nearby Antelope Creek and Little Butte Creek. A boat ramp, four pit toilets, a picnic area, and a parking lot were also built. All but the boat ramp and parking lot have been removed due to excessive vandalism. There are three parking areas one on the north west side and two on the east side of the lake .
Agate Lake receives approximately 23 inches (580 mm) of precipitation annually. Temperatures average from highs of 89 °F (32 °C) in the summer to lows of 22 °F (−6 °C) in the winter. The average wind speed in the area is 10 to 15 miles per hour (16 to 24 km/h).
Agate Lake has an average surface area of 216 acres (0.87 km2), and an average volume of 4,782 acre feet (5,899,000 m3). It is located 1,510 feet (460 m) above sea level, although the water level fluctuates as much as 25 feet (7.6 m) throughout the year. It has approximately 3 miles (4.8 km) of shoreline. The spillway has a capacity of 3,300 cubic feet per second (93 m3/s).
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