PLATE 2.-Tennessee Valley Authority-Principal features of present and proposed water-control projects 19 Powell. PLATE 3.-Tennessee Valley Authority-Principal features of major steam plants Total 3. Memphis 4. See footnotes at end of table, PLATE 3.-Tennessee Valley Authority-Principal features of major steam plants-Continued 1 Plant output is limited by boiler capacity. Cross compounded, 1 high and 2 low pressure cylinders. 3 Station output. Owned by Memphis Generating Co. and under contract to T. V. A. At 0.95 power factor. Limited in summer to 54,000 and 52,000 kilowatts, respectively, by water supply and ambient temperature. Will be reduced about Jan. 1, 1942, to 35,000 kilowatts emergency peak and 20,000 kilowatts continuously. 6 Direct current. 7 Under construction. Estimated auxiliary power deducted. No additional short-time capacity. In This paragraph summarizes the major adjustments and additions in the unified system projects related to the emergency power program. The estimates for 1942 for major unified system projects include $23,646,000 for carrying out the emergency program. This program includes construction of the Cherokee Dam and Reservoir and the Watts Bar steam plant and installation of generating unit No. 4 at Pickwick Landing Dam with a capacity of 36,000 kilowatts, and generating units Nos. 11 and 12 at Wilson Dam with a combined capacity of 50,400. In addition to these projects the Authority has out of its regular funds installed equipment and advanced schedules at other projects to meet emergency needs. this category are generating unit No. 3 at Pickwick Landing Dam with a capacity of 36,000 kilowatts and two additional generating units (Nos. 9 and 10) at Wilson Dam with a capacity of 50,400 kilowatts, now being installed. In order to achieve this within its approved budget the Authority has been able to reallocate from savings, increased revenues, and other adjustments approximately $225,000 in fiscal year 1940 and approximately $4,065,000 in the estimates for 1941 for this work which had not been provided for in previous estimates. In addition the schedule for closure of Watts Bar Dam has been advanced from April 1, 1942, to January 1, 1942, and the placing in service of the first generator at this project has been advanced from November 1, 1942, to May 1, 1942. To make this possible, approximately $2,585,000 was applied in fiscal year 1940 in addition to the amount provided in previous estimates, enabling a reduction of approximately $475,000 in fiscal year 1941, and a reduction of $2,110,000 in 1942 and ensuing years from previous estimates. These adjustments and additions occasioned by emergency power requirements are reflected as a part of each project in the following paragraphs. The total estimated cost of the Kentucky Dam and Reservoir is increased from $95,000,000 to $105,000,000 to provide for the installation of 4 hydroelectric generating units with a generating capacity of 128,000 kilowatts. These generators are scheduled to be in service in the latter part of fiscal year 1945 and the first part of fiscal year 1946. The 1942 estimates do not include any amount for these generators other than engineering because it will not be necessary to place orders for this equipment before the fiscal year 1943. The estimate for 1942 for Kentucky Dam and Reservoir includes funds for the acquisition of approximately 23 percent of the land required for this project, making land acquisition about 57 percent complete by the end of fiscal year 1942. The construction schedule for this project requires that approximately 20 percent of highway and railroad relocation work be completed or under way by June 30, 1942, and the 1942 estimate includes funds for this purpose. The 1942 estimate provides for approximately 25 percent of reservoir clearing work required for the project, and for continuation of dam construction at a rate commensurate with the schedule for completion of the project. For the dam, the 1942 estimate provides for completion of the east earth embankment, a portion of the west earth embankment, substantial completion of stage 1-B which includes the powerhouse substructure and nine bays of the spillway, erection of cofferdam for stage 2 which includes 15 bays of the spillway and bulkhead section of the dam, and a substantial portion of excavation for stage 2. The total estimated cost of the Pickwick Landing Dam and Reservoir is increased from $31,226,454 to $35,758,408 to provide for the installation of two additional hydroelectric generating units Nos. 3 and 4 in space already provided at this project. The two additional units are now in process of installation. They will add 72,000 kilowatts of generating capacity to the system and are scheduled for completion in the spring of 1942. The total estimated cost of Wilson Dam and Reservoir is increased from $30,865,542 to $36,189,539 to provide for the installation of four additional hydroelectric generating units at this project. These additional units (Nos. 9 to 12) are now in process of installation. They will add 100,800 kilowatts of generating capacity to the system and are scheduled for completion between November 1941 and April 1942. The 1942 estimate for Hales Bar Dam and Reservoir includes provision for treatment of the foundation of this dam to stop excessive leakage beneath the dam. Foundation treatment will be started in fiscal year 1941 but the major portion of this work is scheduled for 1942. The 1942 estimate also provides for completion of dredging begun in 1941. This, together with provision in the estimate for ensuing years for raising the dam, will complete the channel for full 9-foot navigation in this section of the river. 282306-41-pt. 2- -29 PLATE 4.-Navigation improvements on the Tennessee River, 1934-45, Sept. 27, 1940 1 Depths of 11 feet provide 9-foot draft. Channel improvements to be both by dam construction and by dredging; 9-foot navigation, Paducah to Knoxville, authorized by the T. V. A. Act. The 1942 estimate for Chickamauga Dam and Reservoir provides for completion of dredging of navigation channel between the dam and Chattanooga. This dredging will provide a minimum depth of 8 feeet. A full depth of 11 feet required for 9 feet between Chattanooga and Chickamauga Dam will be available only after Hales Bar Dam has been raised. Plate 4 graphically identifies the relationship between dredging and completion of the nine-foot channel from Paducah, Ky., to Knoxville, Tenn. At Watts Bar Dam and Reservoir, the 1942 estimate provides for substantial completion of this project except for dredging below the dam for completion of this part of the channel to permit 9-foot navigation. The estimated total cost of this project remains the same as in previous estimates, but the schedule for completion of the project has been advanced about 7 months to meet emergency power requirements. The total estimated cost of Fort Loudon Dam and Reservoir (formerly designated as Coulter Shoals Dam and Reservoir) is increased from $28,500,000 to $29,000,000 to provide for the installation of two hydroelectric generating units with a generating capacity of 64,000 kilowatts instead of two units with a generating capacity of 48,000 kilowatts as previously planned. This increase in capacity is made feasible by storage which will result from construction of the recentiv authorized Cherokee Dam and Reservoir on the Holston River. The Fort Loudon project as now planned will provide for the ultimate installation of three |