Operating expenses and revenues, North Platte project, to June 30, 1918. Total entire project.... 76, 958.18 151, 331.43 227,564.91 367, 806. 02 485, 453. 19 853, 259. 21 1 82, 072.95 771, 186. 26 Operation and maintenance charges accrued on contracts with water-right ap- Operation and maintenance charges paid in advance by water-right applicants.. Rentals of irrigation water. Loss on farming operations.. Less discount allowed on operation and maintenance charges accrued on contracts with water-right applicants. Total. Difference (deficit). 1 Deduct. NEVADA, TRUCKEE-CARSON PROJECT. JOHN F. RICHARDSON, project manager, Fallon, Nev.1 LOCATION. Counties: Churchill, Storey, and Lyon. Townships: 17 and 18 N., Rs. 17 to 30 E.; 19 N., Rs. 26 to 31 E.; 20 N., Rs. 22 to 31 E., Mount Diablo meridian. Railroad: Southern Pacific. Railroad stations and estimated population, June 30, 1918: Fernley, 40; Hazen, 100; Fallon, 1,700; Stillwater, 20. WATER SUPPLY. Source of water supply: Truckee and Carson Rivers. Annual run-off in acre-feet: Truckee River at Tahoe (519 square miles), 1901 to 1917, maximum, 704,000; minimum, 113,000; mean, 278,100. Truckee River near Derby (1,740 square miles), 1900 to 1917, maximum, 1,435,000; minimum, 356,000; mean, 864,670. Carson River at Empire (988 square miles), 1901 to 1917, maximum, 731,000; minimum, 172,000; mean, 428,100. AGRICULTURAL AND CLIMATIC CONDITIONS. Area for which service is prepared to supply water, season 1918: 71,817 acres. .Area under water-right applications and rental contracts, season 1918: 51,515 acres. Length of irrigation season: From April 1 to October 15, 198 days. Average elevation of irrigable area: 4,000 feet above sea level. Rainfall on irrigable area: Average 4 inches (maximum record 1913, 8.08 inches). Range of temperature on irrigable area: -20° to 100° F. Character of soil of irrigable area: Exceedingly variable; sand, sandy loam, adobe, clay, and volcanic ash. Principal products: Alfalfa, small grain, potatoes, onions, sugar beets, truck crops, and dairy products. Principal markets: Nevada and Pacific coast communities. LANDS OPENED FOR IRRIGATION. Dates of public notices and orders: May 6, November 1, 1907; January 30, April 4, June 5, December 26, 1908; March 1, September 28, 1909; April 26, September 16, 1910; April 22, October 17, 1911; February 8, June 13, 1912; January 17, June 23, July 15, July 21, 1913; August 19, December 16, 1914; January 30, February 26, March 20, May 13, November 12, 1915; January 17, February 11, 1916; March 10, March 22, July 16, July 31, October 30, 1917; January 2, January 15, April 3, April 10, May 7, May 20, 1918. Location of lands opened: Ts. 17 to 20 N., Rs. 23 to 31 E., Mount Diablo meridian. Limit of area of farm units: 40 to 160 acres. Duty of water: 3.14 acre-feet per acre per annum at the farm. Building charge per acre of irrigable lands: $22, $30, $60, $65, and $115 (for Carson Lake leveled lands). Annual operation and maintenance charge per acre of irrigable land: Fernley district, approximately $2.15 per acre; Fallon district, approximately $1.15 per acre, based on cost of service. CHRONOLOGICAL SUMMARY. Reconnaissance made and preliminary surveys begun in 1902. Construction conditionally authorized by Secretary, March 14, 1903. Truckee Canal completed June, 1905. 'John T. Whistler was project manager from July 1 to Nov. 19, 1917. Carson River headworks and main distributing canals completed September, 1905. First irrigation by Reclamation Service season of 1906. Truckee Canal chute completed November, 1910. Lahontan Dam commenced January, 1911. Lahontan Dam completed June, 1915. United States took possession of outlet works at Lake Tahoe and assumed control July 1, 1915. Entire project 53.8 per cent completed June 30, 1918. IRRIGATION PLAN. The irrigation plan of the Truckee-Carson project provides for the storage of water on the headwaters of Truckee River, in Lake Tahoe, in the Alkali Flat Reservoir, near Churchill, Nev., and in Lahontan Reservoir on Carson River; the diversion of water from Truckee River by a dam about 20 miles below Reno, Nev., into the Truckee Canal, supplying water to lands in the Truckee and Carson River valleys and to the Lahontan Reservoir; the diversion of water from Carson River by a dam near Dayton, Nev., for storage in Alkali Flat Reservoir and irrigating lands in Churchill Valley below that reservoir; and the diversion of water from Carson River by a dam about 5 miles below the Lahontan storage dam into two canal systems, one on either side of the river, watering lands in the lower Carson River Valley. The United States claims all waste, seepage, unappropriated spring, and percolating water arising within the project and proposes to use such water in connection therewith. The features of the above irrigation plan which have been completed are: The dam at the outlet of Lake Tahoe, including the greater portion of the accessory dredging of the Truckee River Channel; the diversion dam in Truckee River near Derby, Nev., the Truckee Canal carrying water from this diversion 31 miles to the terminal concrete chute discharging into the Lahontan Reservoir; the forebay for the hydroelectric plant discharging Truckee Canal water into Carson River below Lahontan Dam; the diversion dam in Carson River situated about 5 miles below Lahontan Dam; that portion of the irrigation system which includes laterals taken out of Truckee Canal in the vicinity of Fernley and Hazen; and the two main canals heading at Carson diversion dam and extending over the main portions of the project in Carson sink, with Fallon as a center. Construction of Lahontan Dam and Reservoir was completed in June, 1915, for the conservation of the flood waters in both the Truckee and Carson Rivers. The features remaining for future construction are: The Alkali Flat Reservoir. or equivalent reservoirs in the upper Carson Valley, as may later be determined; the upper Truckee storage reservoirs as required; the extension of the irrigation system to cover additional irrigable areas adjacent to and on all sides of the project as already constructed; and the extension of the drainage system which may become necessary as supplemental construction in behalf of the water users under the provisions of the reclamation extension act. SUMMARY OF GENERAL DATA FOR TRUCKEE-CARSON PROJECT TO END OF FISCAL YEAR 1918. Finances: Net construction cost to end of fiscal year. Per cent complete at end of fiscal year . Appropriated for fiscal year 1919, total $6, 199, 459.34 53.8 $671,000.00 Allotment for construction. fiscal year 1919 Estimated per cent complete, June 30, 1919. Proposed appropriation fiscal year 1920, for construction Estimated gross construction cost to June 30, 1920.. Appropriation, fiscal year 1918... $463,000.00 59.7 Expenditures during fiscal year chargeable to 1918 appropriation Disbursements.. $269, 387.12 Transfers... 18, 421. 10 Drainage: Estimated acreage damaged by seepage to end of fiscal year...... Open. Closed. Total.. 1, 188, 920. 33 338, 481.52 1 333, 264.40 5, 217. 12 2 299, 427.37 289, 318. 20 10, 109. 17 8, 281.70 8, 123. 70 158.00 8, 617.81 8, 580.86 36.95 11, 500 14.23 3.99 18.22 15,000 19,500 $327, 239.23 Estimated acreage protected by drains built to end of fiscal year. CONSTRUCTION DURING FISCAL YEAR. Lateral construction.-Under this feature the largest item of construction during the year consisted in the excavation and installation of structures for the J, JA, J, JA, and J, laterals and the J1, Jia, JB, and Jc waste-water ditches or shallow drains. This work in 1 Includes $5,436. 50 of work taken up on joint construction vouchers. |