facilities, to be constructed by contract at the Tivy Union School site, were initiated in June 1950 and are 10 percent complete. Construction of the main dam by continuing contract was initiated January 1950 and is about 6 percent complete. Work included 4,993 cubic yards excavation but consisted primarily of plant layout, construction of railroad, shops, water supply and distri bution system and power lines, stripping of aggregate area, and grading and improvement of access roads to the project. Cofferdam and first stage diversion was completed and the enclosure dewatered. Total cost of new work during the fiscal year was $3,286,738.76 and total expenditures were $2,214,120.48. Condition at end of fiscal year.--Project plans and preparation of contract plans and specifications and acquisition of land was continued. Construction work was started in April 1947; the project is about 16 percent completed. Excavation for the left abutment of the dam and construction of access road to the abutment area, construction and fencing of Hughes Creek-Pine Flat Detour Road, and relocation and installation of telephone lines were completed in 1948. Work completed in 1949 includes: Provision of 24 portable two-bedroom houses, including paving and utilities, for project personnel; excavation for right abutment of the dam and access road to the area; construction and fencing of Hughes Creek Road, Sunnyside Summit to Trimmer; roads and utilities for the Government camp; permanent housing and facilities for operating personnel; and construction of a bridge and measuring weir. Construction of the main dam was initiated in January 1950 and will be completed about September 1954; construction of additional school facilities at Tivy Union School site will be complete in September 1950; and fabrication of sluice gates and appurtenances, started in August 1949, will be complete about May 1951. Work remaining to be done to complete the project includes: Spillway gates, utility modifications including relocation of existing Forest Service facilities, reservoir clearing, and authorized channel improvements in the lower river area. Total cost of new work to date was $8,667,657.61 and total expenditures were $7,547,808.72. Proposed operations.-The balance unexpended on June 30, 1950, amounting to $6,252,191.28 plus an anticipated allotment of $8,365,000 during fiscal year 1951, a total of $14,617,191.28, will be applied as follows: Accounts payable June 30, 1950 Continuation of preparation of detailed plans and con- $1,232,848.89 250,000.00 321,000.00 57,000.00 255,000.00 Addition to Tivy School, by contract, July 1950 to September 1950 58,000.00 Furnish spillway radial gates and appurtenances, by supply contract, July 1950 to July 1951 233,000.00 Government camp and school operations, entire fiscal year Fabrication of sluice gates and appurtenances for main dam, by continuing supply contract, July 1950 to June 1951 Construction of main dam, by continuing contract, July Instrumentation program, by miscellaneous small supply Furnish penstock stop-logs, by supply contract, February Furnish and install elevator in dam, by supply contract, Relocation of U. S. Forest Service facilities, by negotiated Relocation of Sycamore Creek Road by continuing con- Relocation of Pacific Gas & Electric Company power dis- 11,330,000.00 186,000.00 50,000.00 17,000.00 45,000.00 50,000.00 $450,000.00 40,000.00 42,342.39 13,384,342.39 14,617,191.28 Total for new work The additional sum of $8,735,000 can be profitably expended for the following schedule of work during fiscal year 1952: New work: .... Continuation of construction of main dam, by continuing Completion of relocation of U. S. Forest Service facilities, $6,500,000 500,000 275,000 360,000 550,000 Initiation drainage and grouting program, by continuing contract 250,000 Installation of stream gaging facilities and sedimentation ranges 35,000 Government camp and school operations 85,000 Continuation of preparation of detailed plans and contract plans and specifications 180,000 Total for new work 8,735,000 Other new work data: Unobligated balance, June 30, 1950 Appropriated for fiscal year ending June 30, 1951 $462.12 8,365,000.00 8,365,462.12 28,956,000.00 18. FOLSOM RESERVOIR, SACRAMENTO RIVER BASIN, CALIF. Location. The proposed Folsom dam site is located on the American River about 21⁄2 miles above or northeasterly of the town of Folsom in Sacramento County, Calif., and about 1 mile below the confluence of the north and south forks of this stream. The proposed reservoir would extend from the dam site up the main river to this confluence and about 7 miles further upstream in each of the two forks. The American River system originates on the western slope of the Sierra Nevada, and the main river flows into the Sacramento River at the city of Sacramento. The lower portion of the American River, 25 miles below Folsom, is in the Sacramento Valley. The drainage area of the river system contains 2,115 square miles of which 1,875 square miles are above the proposed dam site. Existing project.-The authorization provided for the initial construction of a dam with gross storage of 355,000 acre-feet, and facilities for future power generation. The project, as modified, provides for the reservoir to be constructed with a capacity of approximately 1,000,000 acre-feet and further provides for simultaneous construction of the power facilities by the U. S. Bureau of Reclamation, and subsequent maintenance and operation of the completed project by that agency in conjunction with other units of the Central Valley Project. The existing project was adopted by the Flood Control Act of December 22, 1944 (H. Doc. 649, 78th Cong., 2d sess., which contains the latest published map), as modified by the American River Basin Development Act (Public Law 356, October 14, 1949, 81st Cong. 1st sess.). The estimated (1950) Federal first cost is $50,792,000. Local cooperation.-None required, except payment for conservation costs when used. The State of California has officially adopted the project. Operations and results during fiscal year.-The preparation of project plans and contract plans and specifications was continued. Land acquisition (including improvements, disposals and damages) and operation of the Government camp were continued. Partial construction of the right wing of the main dam by contract, initiated in November 1948, was completed in November 1949; work placed during the fiscal year consisted of 27,805 cubic yards common excavation, 384,246 cubic yards borrow excavation, and clearing of 19 acres. Construction of an administration building, warehouse and garage, by contract, was started in March 1950 and is about 78 percent complete. Initial abutment excavation for the river section of the main dam, access roads and fences, by contract, was started in April 1950, and is about 30 percent complete. During the fiscal year work consisted of the following items: 113,165 cubic yards excavation for the dam; 32,966 cubic yards excavation for access roads; 2,842 tons gravel base course; 3,910 linear feet chain-link fence; and 2,260 linear feet right-ofway fence. Excavation of temporary bypass tunnel for Natoma Canal was initiated by contract in April 1950 and is about 22 percent complete; work consisted of 459 cubic yards tunnel excavation and 12,640 cubic yards unclassified excavation. A contract for construction of right wing dikes numbered 1, 2, 3, 4, and 6 was started in May 1950; work is about 20 percent complete. Work placed during the fiscal year consisted of the following items: 66 acres cleared and grubbed; 7,101 cubic yards unclassified and 45,766 cubic yards borrow excavation; 26,472 cubic yards impervious fill; 9,980 tons 2-inch sand and gravel; and 10,179 linear feet fence. The cost of new work during the year was $1,372,848.28 and expenditures were $1,314,301.06. Condition at end of fiscal year.-Project plans and contract plans and specifications are in preparation. Mormon Island Road relocation was completed in May 1949, and partial construction of the right end of main dam was completed in November 1949. Construction of the administration building, warehouse, and garage will be completed in July 1950; initial abutment excavation for the river section of the main dam, access roads and fences is to be completed early in 1951; and construction of right wing dikes 1, 2, 3, 4, and 6, and the excavation of temporary bypass tunnel for Natoma Canal are scheduled for completion in January 1951. The project as a whole is about 6 percent complete. Work remaining to complete the project includes: Continuation of acquisition of lands and improvements; initiation of a continuing contract for the main dam and appurtenances; relocation and revision of utilities and roads; initiation of a continuing supply contract for outlet gates, spillway gates, penstocks and gates, and related operating equipment; and reservoir clearing. The total cost of new work to date was $2,818,599.54, and total expenditures were $2,649,733.10. Proposed operations.-The balance unexpended on June 30, 1950, amounting to $2,032,266.90 and an anticipated allotment of 939127-51-vol. 2- -63 $4,400,000 during fiscal year 1951, a total of $6,432,266.90, will be applied as follows: Accounts payable June 30, 1950 Continuation of preparation of detailed plans and specifi- Continuation of acquisition of lands and improvements, Government camp and school operations, entire fiscal year Relocation of North Fork Ditch Co. buildings and utilities, Additional abutment excavation and core drilling, river Relocation of Blue Ravine-Green Valley Rd., by contract, Initiate construction of Mormon Island auxiliary dam, $189,564.38 900,000.00 1,091,000.00 20,000.00 182,000.00 23,000.00 65,000.00 179,000.00 323,000.00 14,000.00 19,000.00 250,000.00 515,000.00 43,000.00 2,000,000.00 70,000.00 Permanent relocation of Pacific Gas & Electric Co. power distribution lines, by contracts, starting May 1951 Permanent relocation of Natomas Co. ditch facilities, by continuing contract, starting June 1951 55,000.00 100,000.00 Permanent relocation of North Fork Ditch Co. facilities, by continuing contract, starting June 1951 100,000.00 Initiate permanent relocation of Pacific Gas & Electric Co. Halsey-Newark 110-kv power-transmission line, by con- 250,000.00 Establish sedimentation ranges, December 1950 to July 1951 25,000.00 Miscellaneous minor activities incidental to orderly prosecution of work, entire fiscal year 18,702.52 6,242,702.52 Total for new work 6,432,266.90 The additional sum of $7,000,000 can be profitably expended for the following schedule of work during fiscal year 1952: |