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Rogue River Basin Project - Main Page
Project Water Supply
Historic Conditions:
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Normal |
18.86 in |
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Maximum - 1983 |
30.15 in |
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Minimum - 1985 |
10.69 in |
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Medford, Oregon 1961-1990 |
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Mean Annual |
54.1°F |
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Daily Maximum - 07/20/1946 |
115 °F |
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Daily Minimum - 12/08/1972 |
-6 °F |
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Medford, Oregon 1928-1996 |
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Growing Season |
206 days |
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Elevation of irrigable area |
1,200 - 2,300 ft |
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Drainage area above Fourmile Lake Dam |
105 mi2 |
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Annual discharge: |
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Maximum - 1965 |
24,770 acre-ft |
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Minimum - 1967 |
3,693 acre-ft |
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Average - 1964-1967 |
12,099 acre-ft |
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Streamflows: Fourmile Creek near Rocky Point, Oregon (USGS)
Fish Lake
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Drainage area at Fish Lake Dam |
20 mi2 |
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Annual discharge: |
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Maximum |
acre-ft |
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Minimum |
acre-ft |
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Average |
acre-ft |
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Streamflows: North Fork Little Butte Creek at Fish Lake near Lakecreek, Oregon (USGS)
Hyatt Reservoir
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Drainage area at Hyatt Dam |
12 mi2 |
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Annual discharge: |
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Maximum |
acre-ft |
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Minimum |
acre-ft |
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Average |
acre-ft |
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Streamflows: Keene Creek Near Ashland, Oregon (USGS)
Emigrant Lake
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Drainage area at Emigrant Dam |
64 mi2 |
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Annual discharge:1 |
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Maximum - 1983 |
74,388 acre-ft |
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Minimum - 1931 |
458 acre-ft |
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Average - 1920-1986 |
21,690 acre-ft |
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1 Includes water diverted from Klamath Basin through the Cascade Divide Tunnel. |
Streamflows: Emigrant Creek near Ashland, Oregon (USGS)
Howard Prairie Lake
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Drainage area at Howard Prairie Dam |
79 mi2 |
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Annual discharge:2 |
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Maximum - 1963 |
26,699 acre-ft |
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Minimum - 1961 |
18,175 acre-ft |
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Average - 1960-1965 |
23,372 acre-ft |
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2 Includes transbasin interception from South Fork Little Butte Creek and its tributaries. |
Streamflows: Howard Prairie Lake Outlet near Pinehurst, Oregon (USGS)
Keene Creek Reservoir
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Drainage area at Keene Creek Dam |
111 mi2 |
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Annual discharge:3 |
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Maximum - 1957 |
12,242 acre-ft |
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Minimum - 1962 |
5,181 acre-ft |
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Average - 1917-1965 |
9,211 acre-ft |
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3 Discharge includes water from Howard Prairie and Hyatt Reservoirs. Computed from water through Green Springs Powerplant only. |
Streamflows: Keene Creek near Ashland, Oregon (USGS)
Agate Reservoir
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Drainage area at Agate Dam (Dry Creek only) |
13 mi2 |
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Annual discharge:4 |
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Maximum |
acre-ft |
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Minimum |
acre-ft |
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Average |
acre-ft |
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4 Includes some water diverted from Antelope Creek and Little Butte Creek. |
Project Water Quality
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