Projects & Facilities
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Programs & Activities
of the Interior
Project # 336
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Weather Conditions (NOAA)
Clearwater River at Spalding, Idaho (USGS)
Streamflow Forecast Map
Spring and Summer (NRCS)
Mountain Snowpack Maps for Columbia River BasinColumbia River Snowpack Summary
Palmer Drought Index MapExplanation of Palmer Drought Severity Index (Text)
Reservoir `A` Dam
Soldiers Meadow Dam
Captain John Diversion Dam, at the head of Captain John Feeder Canal, supplements the water supply for Soldiers Meadow Reservoir. This dam was built by the Irrigation District in 1934, originally out of log cribs, but later replaced by a concrete structure. The dam is about 50 mi south of Lewiston, Idaho.
The diversion dam at the head of Lake Waha Feeder Canal was constructed by the Irrigation District in 1912 and replaced by a concrete structure about 1941. The dam is on the West Fork of Sweetwater Creek, about 23 mi southeast of Lewiston.
Irrigation Distribution System
In addition to 4.4 miles of large steel supply lines, 71.2 miles of pressure pipe ranging from 1 to 30 inches in diameter were installed by the Irrigation District totaling 12 miles.
Domestic Distribution System
The domestic distribution system consists of 47 miles of pipeline ranging in diameter from 9.75 to 14 in installed by Reclamation and 11 mi of extension installed by the Irrigation District.