Information Of Interest Source of water supply: Upper Klamath Lake, Lost River and Clear Lake. Area of drainage basin: 3,700 square miles. Length of irrigation season: From April 15 to September 30 - 168 days. Average elevation of irrigable area: 4,100 feet above sea level. Average annual rainfall on irrigable area: 12.7 inches. Average of recorded temperatures, 12 years: highest 97, lowest -4 F Character of soil of irragable area: Disintegrated basalt, volcanic ash, and diatomaceous eart, being largely classifid as Yakima sandy loam. Principal products: Alfalfa, hay, grain and vegetables; stock,poultry, and dairy products. Principa; markets: Portland Oregon; Sacramento and San Francisco, Ca. Limit of area of farm units: 160 acres. The irrigation plan of the Klamath Project provides for the storage of water in Upper Klamath Lake, lying just North of Klamath Falls, Oregon, and in Clear Lake Reservoir, California, at the head of Lost River. Water for lands in Langell Valley and in the vicinity of Bonanza will be supplied from Clear Lake Reservoir and from Gerber Reservoir. Water for all other lands will be supplied from Klamath Lake. Water is diverted from the outlet of Upper Klamath Lake just above the Link River Dam, into the "A" Canal which extends nine miles in a southeasterly direction, and supplies the canals on both sides of Lost River. Water for the Tule Lake lands, which are served by the "J" Canal, is discharged into Lost River from the C-G Canal and from this point to the diversion dam two miles southeast of Merrill; Lost River being used as a carrier. At the diversion dam, the water is diverted into the "J" Canal. One of the principal features of the Klamath Project is the reclamation of the lands in the bed of Tule Lake. These lands are being reclaimed in a double sense: first, by causing the waater recede and, second, by constructing irrigation works to irrigate the lands uncovered. The lowering of the water surface in Tule Lake is being brought about by evaporation from the lake itself and by preventing inflow. The works designed to prevent inflow consists of Clear Lake Reservaoir, and the Lost River diversion canal. Clear Lake Reservoir is located at the head of Lost River and stops the flood waters coming in from abouve. Flood waters coming in Lost River below Clear Lake are diverted from Lost River int the Klamath River through the diversion canal. The works designed to provede irrigation service for the uncovered lands consist of a diversion dam on Lost River tow miles southeast of Merrill, the "J" Canal and lateral system. The Keno Canal has been constructed on the West side of Link River and extends from the Link River Dam to a point about one mile below; the river in this distance makes a drop of about 50 feet. The Keno Canal was designed to develop power and to supply water for irrigation to lands on the west of Klamath River, also, to the marsh lands around Lower Klamath Lake. Irrigation from the Keno Canal has now been abandoned and the United States has installed no power plant. The Keno Canal has been leased to the California-Oregon Power Company. The Pricipal features of the project are the Clear Lake Reservoir, the Gerber Reservoir, the Link River Dam, the Main "A" Canal with a tunnel 3300 feet long, the precast concrete flume 4300 feet long on the "C" Canal, the di2 diversion dams on the Lost River, the Lost River pipe lines on the C-G Canal and the main canals and laterals and 128 miles of open drains. Irrigation service may now be provided for about 101,000 acres or irrigable land.
Ill., maps (some color), photographs; Includes fiscal year financials and contracts, land acquired, land leased, project organization chart, litigations, photographs, maps, hydrographs, etc.; Includes index; Title covers: calendar years for 1918 – 1943; Description based on Annual project history and O.M. report of the Klamath Project, Oregon-California Annual for calendar year 1918; Dates of the beginning year(s) of publication are derived from the 1903 to December 31, 1912, History of the Klamath Project and from the volume information on later volumes (v. 35) Klamath District and Klamath Project annual history for 1945, dated December 1, 1946