complete and the powerhouse structure is scheduled to be complete in November 1954. The "in-service" date for generating unit No. 1 is scheduled for December 1954, Unit No. 2 for April 1955, and the third unit is scheduled to be placed on the line in June 1955. Construction of Dexter re-regulating dam and powerhouse structure is scheduled for completion in December 1954. Re-regulation of the fluctuating flows from Lookout Point dam will be in effect December 1954, and power on the line from the Dexter unit is planned for April 1955. Fish facilities consisting of a salmon hatchery at Oakridge, Oregon and a game fish hatchery at Leaburg, are complete and in operation. At Dexter Dam construction of a salmon egg collecting station is in progress. Total costs have been $79,765,839 all for new work. Unobligated balance, fiscal year ending June 30, 1954.. $1,049,676 3,000,000 4,049,676 Estimated additional amount needed to be appropriated for completion of existing project.......... 423,680 28. COTTAGE GROVE RESERVOIR, WILLAMETTE RIVER BASIN, OREG. Location. On the Coast Fork of Willamette River, 29 miles from the mouth. The Coast Fork rises in Douglas County, Oreg., on the western slope of the Cascade Range and the northern slope of the Calapooya Range, flows north for 49 miles, and unites with the Middle Fork to form the main Willamette River. The drainage area tributary to this reservoir is 104 square miles. Existing project. The plan of improvement provides for construction of an earthfill dam, 1,650 feet long at the crest, rising 95 feet above the stream bed, with a reservoir providing for usable storage of 30,000 acre-feet. The spillway, 264 feet long, is a concrete, gravity, overflow type forming the right abutment. Outlet works, consisting of three gate-controlled conduits, pass through the spillway section. The reservoir is operated as a unit of the coordinated reservoir system to protect the Willamette River Valley and to increase low water flow for navigation. The existing project was selected for construction under the general authorization for the Willamette River Basin, contained in the Flood Control Act approved June 28, 1938. The Flood Control Acts of December 22, 1944, and July 24, 1946, modified the project to provide for recreational facilities. The actual cost for new work is $1,821,793.94 for construction and $551,500 for lands and damages, a total of $2,373,293.94 The latest (1953) approved estimate for annual cost of operation and maintenance is $35,700. Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. Operations and results during fiscal year. The dam, reservoir, and public use facilities were in continuous operation throughout the fiscal year. A total of 56,799 persons visited the reservoir area for recreational purposes. Functioning of Cottage Grove Reservoir was normal during the fiscal year. Several freshets and minor floods, and one moderate flood, occurred, all of which were completely controlled on Coast Fork Willamette River. The largest flood occurred November 22-23, 1953, and had a peak inflow of 10,800 second-feet, at which time the outflow was maintained at 100 second-feet. Volume of water stored during this flood was 20,000 acre-feet, or 67 percent of the total flood control space in the reservoir. Cottage Grove Reservoir was drawn down to minimum conservation pool during the months of August-October. The low natural flows in both Coast Fork and the main stem of Willamette Rivers were supplemented by the releases from Cottage Grove and other reservoirs during this season. Conservation filling was initiated on February 1, and the scheduled filling rate was maintained until about May 1, 1954. After that date the reservoir inflow was inadequate to maintain the filling rate and the maximum storage attained was 27,000 acre-feet, 4,000 acre-feet below maximum conservation pool. Total costs for the fiscal year were $31,990 all for maintenance. Condition at end of fiscal year. Construction of the project initiated August 1940 was completed April 1952. The dam and reservoir have been in continous operation since September 1942. Total costs have been $2,657,373 of which $2,373,294 was for new work and $284,079 for maintenance. 29. DORENA RESERVOIR, WILLAMETTE RIVER BASIN, OREG. Location. Dorena Reservoir is located on Row River, Oreg., 7 miles from the mouth. Row River rises in Lane County on the western slope of the Cascade Range, flows northwest for 19 miles, and enters the Coast Fork of Willamette River 1912 miles above the mouth. The drainage area, tributary to this reservoir, is 265 square miles. Existing project. The plan of improvement provides for construction of an earthfill dam, 3,297 feet long at the crest, rising 145 feet above the streambed, with a reservoir providing usable storage capacity at normal pool level of 70,000 acre-feet. The spillway, 200 feet long, is a concrete gravity, overflow type, forming the right abutment. Outlet works consisting of five slide gate-controlled conduits pass through the spillway section. The reservoir, controlling practically the entire drainage area of Row River, will be operated as a unit of the coordinated reservoir system to protect the Willamette River Valley and to increase low water flows for navigation, and for other purposes. The existing project was selected for construction under the general authorization for the Willamette River Basin contained in the Flood Control Act approved June 28, 1938. The Flood Control Acts of December 22, 1944, and July 24, 1946, modified the project to provide for recreational facilities. The actual cost of new work is $13,517,101. The approved (1953) estimate of the annual cost of operation and maintenance is $40,300. Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. Operations and results during fiscal year. Maintenance: The dam and reservoir were in continuous operation throughout the fiscal year. At total of 27,687 persons visited the reservoir area for recreational purposes. Functional regulation of Dorena Reservoir was normal during the fiscal year. Several freshets and minor floods, and one moderate flood, occurred all of which were completely controlled on Coast Fork Willamette River. The largest flood occurred November 22-23, 1953, and had a peak inflow of 20,400 second-feet, at which time the outflow was maintained at 100 second-feet. Volume of water stored in Dorena Reservoir to control this flood was 56,500 acre-feet, or 80 percent of the total flood control space in the reservoir. Dorena Reservoir was drawn down to minimum conservation pool during the months of August-October. The low natural flows in both Coast Fork and the main stem of Willamette River were supplemented by the releases from Dorena and other reservoirs during this season. Conservation filling was initiated on February 1, 1954, but because of inadequate inflow during the latter part of the filling season the maximum storage attained was 69,000 acre-feet, 3,000 acre-feet below maximum conservation pool. Total costs for the fiscal year were $32,659.23 all for mainte nance. Condition at end of fiscal year. Construction of the project initiated in June 1941 was completed October 1952. The dam and appurtenant works were placed in operation November 1949. Total costs have been $13,676,376, of which $13,517,101 was for new work, and $159,275 for maintenance. 30. FERN RIDGE RESERVOIR, WILLAMETTE RIVER BASIN, OREG. Location. On the Long Tom River, 23.6 miles from the mouth. The Long Tom River rises in Lane County, Oreg., on the eastern slope of the Coast Range, flows north for 50 miles, and enters the Willamette River 147 miles above its mouth. The drainage area tributary to this reservoir is 252 square miles. Existing project. The plan of improvement provides for construction of an earthfill dam, 6,360 feet long at the crest, and two auxiliary dikes, 850 feet and 3,680 feet long, along the northeasterly boundary of the reservoir. The main dam has a maximum height of 44 feet above the streambed. The spillway, located near the left abutment, consists of a gravity section concrete overflow structure controlled by six automatic radial gates. Outlet works are located in the spillway structure. The project includes recţification of the channel of Long Tom River downstream from the dam. The reservoir, having a usable storage capacity of 95,000 acre-feet, protects the Long Tom River Valley and will be operated as a unit of the coordinated reservoir system to protect the Willamette River Valley generally and to increase low water flows for navigation. The existing project was selected for construction under the general authorization for the Willamette River Basin contained in the Flood Control Act approved June 28, 1938. The Flood Control Acts of December 22, 1944, and July 24, 1946, modified the project to provide for recreational facilities. The actual cost of new work is $3,683,145 for construction and $812,635 for lands and damages, a total of $4,495,780. The latest (1953) estimate of the annual cost of operation and maintenance is $48,400. Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. Operations and results during fiscal year. The dam, reservoir and public use facilities were in continuous operation. A total of 113,826 persons visited the reservoir area for recreational purposes. Several minor floods and one major flood occurred during the winter high water season. Flood waters were stored in Fern Ridge Reservoir so as to control the floods completely in Long Tom River and, in conjunction with other reservoirs in Willamette Basin, to effect substantial reductions on the main stem of the Willamette River. The largest flood, which was of major flood proportions, on Long Tom River occurred during January 27-30, 1954. Peak inflow into Fern Ridge Reservoir was 19,400 second-feet, which is the greatest inflow since Fern Ridge Project has been in operation. Flood volume was not as great as that of some previous floods, however, and the entire inflow, except for a minimum release of about 50 second-feet, was stored in the reservoir during the flood. The volume of water stored was 80,000 acre-feet, or about 85 percent of the total flood control space in the reservoir. The reservoir was drawn down to minimum conservation pool during the months of August-October. Natural flows in Willamette River were low during this season and were augmented by the releases from Fern Ridge and other reservoirs in the interests of irrigation, navigation, pollution abatement, and fish life. Conservation filling of Fern Ridge Reservoir began February 1, as scheduled, and the reservoir was nearly full on the scheduled date of May 1, 1954. Total costs for the fiscal year were $42,165.79 all for mainte nance. Condition at end of fiscal year. Construction of the project initiated April 1940 was completed August 1951. The dam and reservoir have been in continuous operation since December 1941. Total costs have been $4,926,393, of which $4,495,780 was for new work and $430,613 for maintenance. 31. COUGAR DAM, WILLAMETTE RIVER BASIN, OREG. Location. On South Fork McKenzie River 4.4 miles from the mouth. South Fork McKenzie River flows northwesterly from its source and joins McKenzie River about 56.5 miles above its confluence with Willamette River. Existing project. The plan of improvement provides for the construction of an earth- and gravel-filled dam about 1,630 feet long at the crest and 430 feet high above the stream bed. The dam will form a reservoir about 6 miles long with a usable capacity at normal pool of 182,000 acre-feet. The spillway, 288 feet long, will be an overflow combination chute and tunnel section located in the left abutment. The outlet tunnel and power tunnel will pass through the right abutment. The powerhouse, when authorized, will include one unit rated at 25,000 kilowatts and will be located near the toe of the dam along the right abutment. The improvement will function as a unit in the coordinated system of reservoirs for multiple-purpose development of the water resources in the |