1960 Extract Report of The Walla Walla District

Report Upon the Improvement of Rivers and Harbors in
The Walla Walla, Wash., District

Extract From the Annual Report of the
Chief of Engineers, 1960

Department of the Army
Office of the Chief of Engineers
1960

This district comprises southeastern Washington, exclusive of the watershed of the Columbia River and tributaries above and including the Yakima River, Wash.; all of Idaho, except the northern part and a small southeastern portion; a portion of western Wyoming; a small part of northwestern Utah; part of northeastern Nevada and all of eastern Oregon.

Improvements

Navigation

1.
2.
3.
4.
5.
6.
7.
8.
9. Snake River, Oreg., Wash., and Idaho
Little Goose Lock and Dam, Snake River, Wash.
Lower Monumental Lock and Dam, Snake River, Wash.
Ice Harbor Lock and Dam, Snake River, Wash.
McNary Lock and Dam, Columbia River, Oreg.
John Day Lock and Dam, Columbia River, Wash. and Oreg.
Columbia River and tributaries above Celilo Falls to Kennewick, Wash.
Navigation projects on which reconnaissance and condition surveys only were conducted during the fiscal year
Other authorized navigation projects

Flood Control

10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26. Columbia River Basin, Local Flood Protection Projects
Jackson Hole, Snake River, Idaho
Blackfoot River, Columbia River Basin, Idaho
Little Wood River, Columbia River Basin, Idaho
Lucky Peak Reservoir, Boise River, Idaho
Malheur River, Columbia River Basin, Oreg.
Weiser River, Columbia River Basin, Idaho
Bruces Eddy Dam and Reservoir, North Fork Clearwater River, Idaho
Kendrick, Potlatch River, Columbia River Basin, Oreg.
Colfax, Palouse River, Wash.
Mill Creek, Washington
Pendleton, Umatilla River, Oreg.
Umatilla River, Columbia River Basin, Oreg.
Other authorized flood-control projects
Inspection of completed flood control works
Flood control work under special authorization
Scheduling of flood control operations

General investigations

27.
28. Examinations and surveys
Research and development

NAVIGATION

1. SNAKE RIVER, OREG., WASH., AND IDAHO

Location. The Snake River, which is the largest tributary of Columbia River, rises in Yellowstone National Park, in the western part of Wyoming, flows in a general westerly direction for about 1,000 miles and empties into Columbia River near Pasco, Wash., 324 miles from the Pacific Ocean.

Previous projects. Prior to the Act of June 13, 1902, the improvement of Snake River below Lewiston, Idaho, (River Mile 140), was associated with improvement of Columbia River above Celilo Falls. The total cost and expenditure prior to adoption of a formal project was $168,500, of which $153,410.26 was for new work and $15,089.74 was for maintenance. For further details see page 1991 of Annual Report for 1915.

Open-river improvement of Snake River from Riparia, Wash. (River Mile 67) to Pittsburgh Landing (River Mile 218) was authorized by Act of June 13, 1902 (H. Doc. 126, 56th Cong., 2d sess.), with no specified channel dimensions above Lewiston. For further details, see page 2246 of Annual Report for 1903 and page 1986 of Annual Report for 1906. This authorization was extended to include improvement from the mouth to Riparia by Act of June 25, 1910 (H. Doc. 411, 55th Cong., 2d sess.), and was further extended to include the reach from Pittsburgh Landing (River Mile 218) to Johnson Bar Landing (River Mile 231) by Act of August 30, 1955. (Rivers and Harbors Committee Doc. 25, 75th Cong., 1st sess.). Under these authorizations the total cost and expenditure for improvement below Lewiston, Idaho was $418,219.88, of which $246,739.54 was for new work and $171,480.34 was for maintenance. In addition, the State of Washington contributed $85,000 in 1907 for new work below Riparia, Wash. The total costs of previous projects are summarized, as follows:

Project	New Work	Maintenance	Total

Prior to June 13, 1902	$153,410.26	$15,089.74	$168,500.00
1902 to Act of March 2, 1945	246,739.54¹	171,480.34	418,219.88¹
Totals	400,149.80	186,570.08	586,719.88
¹In addition, $85,000 for new work expended from contributed funds.

Existing Project. The River and Harbor Act of March 2, 1945 (H. Doc. 704, 75th Cong., 2d sess.) authorized construction of such dams as are necessary and open channel improvements for purposes of providing slackwater navigation and irrigation between the mouth of Snake River and Lewiston, Idaho. This authorization modifies the previous authorizations only for that portion of the improvement below Lewiston, Idaho. The Acts of June 13, 1902, and August 30, 1935, as they pertain to the open river improvement from Lewiston, Idaho to Johnson Bar Landing are part of the existing project.

Improvements presently included in the authorized project are as follows:

Item	Estimated cost (July 1960 Base)

Ice Harbor lock and dam, river mile 9.7	$123,000,000
Lower Monumental lock and dam, river mile 44.7	150,000,000
Little Goose lock and dam, river mile 72.2	142,000,000
Lower Granite lock and dam, river mile 113.1	142,000,000
Open-river improvement, Lewiston to Johnson Bar Landing	34,613¹
Total	$557,034,613
No channel dimensions specified, maintenance only.

Local Cooperation. No conditions were imposed by law.

Terminal facilities. From Ice Harbor lock and dam 9.7 miles above the mouth to Riparia, river mile 67, there are no wharves or warehouses on the river banks. From Riparia to Lewiston, Idaho, a distance of 73 miles, there are no wharves, but there are public and privately owned warehouses and grain elevators located at Penawawa, mile 91.5, Lewiston, mile 140, Asotin, mile 146 and between Asotin and 11 miles above. Just above Lewiston, mile 140.5, there is a privately owned 40- by 60-foot wharf.

Operations and results during fiscal year. Operations and results during fiscal year on Ice Harbor Lock and Dam, on Lower Monumental Lock and Dam, and on Little Goose Lock and Dam are given in an individual report for each of those projects.

Studies were continued under a contract with Washington State Highway Department for engineering services in development of preliminary plans for the relocation of U.S. Highway 295, and U.S. Highway 410 in the vicinity of Central Ferry and Clarkston areas respectively of the Little Goose and Lower Granite Reservoirs. These studies, as reflected in a report thereon, are approximately 98 percent complete.

Preliminary channel improvement work, consisting of underwater blasting of boulder and rock ledges between the mouth of the Salmon River, mile 188, and Johnson Bar Landing, mile 231, was completed. Temporary navigation aids were also established for this stretch of the river, and drawings made showing channel markers.

Total costs during the fiscal year were $29,104,279 for new work, and $9,584 for maintenance.

Condition at end of fiscal year. The following table summarizes the status of work under "Snake River, Oreg., Wash., and Idaho."

Project	Approved 1960 Estimated Cost	Total new work appropriations to June 30, 1960	Cost to June 30, 1960		Percent completed	Construction data
Project	Approved 1960 Estimated Cost	Total new work appropriations to June 30, 1960	New work	Maintenance	Percent completed	Construction data

Ice Harbor Lock and Dam¹	$123,000,000	$87,337,173	$85,354,147	—	67	Construction begun in January 1956.
Lower Monumental Lock and Dam	150,000,000	2,135,000²	2,075,407²
Little Goose Lock and Dam	142,000,000	610,000²	534,220²
Lower Granite Lock and Dam	142,000,000	219,000²	215,497²
Survey for Navigation Aids	—	—	—	$3,394
Open River improvement—Lewiston to Johnson Bar landing ³	34,613	34,613	34,613	65,027	—	Maintenance only
Total	557,034,613	90,336,786	88,213,884	68,421
¹See individual report. ²Pro rata cost of site selection studies, preauthorization studies, and advance engineering. ³No channel dimension specified.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960^{1 2 3 4}
	1956	1957	1958	1959	1960	Total to June 30, 1960^{1 2 3 4}

New Work
Appropriated	$1,000,000	$10,737,000	$26,482,000	$19,683,000	$30,502,000	$90,736,936
Cost	1,286,041	10,130,947	26,399,063	19,361,853	29,104,279	80,614,034
Maintenance
Appropriated	—	—	2,294	38,800	—4,050	254,991
Cost	30	—	2,294	25,166	9,584	254,991
¹Includes $400,150 for new work and $186,570 for maintenance on previous projects. ²In addition, $85,000 for new work was expended from contributed funds on previous project. ³Includes $370,000 preauthorization studies. ⁴Does not include $82,500 contributed funds for artificial spawning channel.
Other new work data:
Unobligated balance, June 30, 1960						$131,865
Appropriated for succeeding fiscal year ending June 30, 1961						26,950,000
Unobligated balances available for succeeding fiscal year ending June 30, 1961						27,081,665
Estimated additional amount needed to be appropriated for completion of existing project						439,747,827

2. LITTLE GOOSE LOCK AND DAM, SNAKE RIVER, WASH.

Location. The site of this project, as shown in the general design memorandum for Lower Monumental Lock and Dam, will be 70.3 miles above the mouth of the Snake River, at the head of the proposed Lower Monumental Pool, 40 miles north of Walla Walla, Wash., and 45 miles west of Lewiston, Idaho.

Existing project. The project provides for a dam, powerplant, navigation lock and appurtenant facilities. The improvement will provide for navigation, hydroelectric-power generation and incidental irrigation. As presently proposed, but subject to minor modification when detailed planning studies are completed, the dam is designed for a normal pool at elevation 633 mean sea level. The normal pool will create a reservoir extending upstream about 43 miles which will be designed to provide slack water to the Lower Granite Lock and Dam site. The total length of the structure will be approximately 2,600 feet. It will consist of a powerhouse, spillway dam, navigation lock, and necessary non-overflow sections. Fish-passing facilities including two ladders will be provided. The powerplant will be constructed for three 90,000-kilowatt units, for an ultimate total of six units. The spillway dam will provide capacity to pass a design flood of 850,000 cubic feet per second. The navigation lock will be of single-lift type and will have clear plan dimensions of 86 feet by 675 feet and will provide a minimum depth of 15 feet over the lock sills.

The estimate of cost for new work, revised in 1960, is $142 million. The existing project was authorized by the River and Harbor Act approved March 2, 1945. (See H. Doc. 704, 75th Cong., 3d sess.)

Operations and results during fiscal year. New Work: General design memorandum studies were initiated and were advanced to approximately 30 percent of completion. These studies have included: (1) Preliminary layouts and design and power studies to determine the best location for Lower Granite Lock and Dam, so that the Little Goose normal pool level can be established; (2) engineering and economic studies for the Little Goose project.

Damsite surveys and soundings for the various Lower Granite sites are being obtained, and detailed reservoir surveys for Little Goose are near completion. Foundation explorations by hired labor were made at the various Lower Granite sites and at the Little Goose site as proposed in the Lower Monumental general design memorandum.

Total costs during the fiscal year were $314,528, all for new work.

Condition at end of fiscal year. The general design memorandum has been advanced to 30 percent of completion. No construction work has been done.

Total costs have been $534,220, all for new work.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	—	$10,000	—	—	$390,100	$610,000¹
Cost	—	—	$7,027	$2,665	314,528	534,220¹
¹Includes $70,000 preauthorization studies.
Other new work data:
Unobligated balance, June 30, 1960						$75,678
Appropriated for succeeding fiscal year ending June 30, 1961						550,000
Unobligated balances available for succeeding fiscal year ending June 30, 1961						625,678
Estimated additional amount needed to be appropriated for completion of existing project						140,839,900

3. LOWER MONUMENTAL LOCK AND DAM, SNAKE RIVER, WASH.

Location. The site of this project, in accordance with a letter report dated 20 October 1948, and revised 26 April 1949, was tentatively established at river mile 44.7 above the mouth of the Snake River at the head of Ice Harbor lock and dam pool approximately 45 miles east of Pasco, Wash. The general design memorandum was submitted to higher authority in October, 1959. Detailed planning studies conducted in its development, establish the location of the project at river mile 41.6.

Existing project. The project provides for construction of a dam, power plant, navigation lock, relocation of railroads and highways above the proposed pool level at elevation 540 mean sea level, and appurtenant facilities, creating a slackwater pool about 30 miles long extending to the site of Little Goose Lock and Dam. The dam, which raises the normal water surface approximately 100 feet above the downstream Ice Harbor Lock and Dam pool level, will be approximately 3,800 feet long. It will consist of an earthfill and rockfill dam at the right (north) abutment, a powerhouse, spillway dam, navigation lock and an earthfill and rockfill dam at the left (south) abutment. The powerhouse will be composed of three 121,000 kilowatt units to be installed initially and a substructure for three additional units—an ultimate total of six 121,000 kilowatt units or 726,000 kilowatt. The spillway dam will be 508 feet long, and the overflow crest at elevation 483 mean sea level will be surmounted by 8 radial gates each 50 feet wide and 59 feet high. This will provide capacity to pass a spillway design flood of 850,000 cubic feet per second. The deck will be at elevation 553 mean sea level and will provide a service road and track for a gantry crane. The navigation lock is a single-lift type, and will have a clear plan dimension of the lock chamber 86 by 675 feet, and will provide a minimum depth of 15 feet over the lock sills. Fish passing facilities including two ladders will be provided.

The estimate of cost for new work, revised in 1960, is $150 million. The existing project was authorized by the River and Harbor Act approved March 2, 1945 (see H. Doc. 704, 75th Cong., 3d Sess.).

Operations and results during fiscal year. New Work: General design memorandum studies were completed, and work began on detailed design memoranda. Total costs during the fiscal year were $814,388, all for new work.

Condition at end of fiscal year. Several specific design memoranda have been submitted to higher authority for approval. No construction work has been done. Total costs have been $2,075,407, all for new work.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	—	—	$500,000	$550,000	$830,000	$2,135,000¹
Cost	—	—	463,203	542,816	814,388	2,075,407¹
¹Includes $75,000 preauthorization studies.
Other new work data:
Unobligated balance, June 30, 1960						$51,521
Appropriated for succeeding fiscal year ending June 30, 1961						1,000,000
Unobligated balances available for succeeding fiscal year ending June 30, 1961						1,051,521
Estimated additional amount needed to be appropriated for completion of existing project						146,865,000

4. ICE HARBOR LOCK AND DAM, SNAKE RIVER, WASH.

Location. The site of this project is on the Snake River, 9.7 miles above the mouth of the river, at the head of the McNary lock and dam pool, and 12 miles east of Pasco, Wash.

Existing project. The project provides for construction of a dam, powerplant, navigation lock, fish ladders, appurtenant facilities, and the relocation of railroads. The improvement will provide for navigation, hydroelectric power generation, and incidental irrigation. The dam is designed for a normal pool at elevation 440 mean sea level. The normal pool will create a reservoir extending upstream about 35 miles, providing slackwater to the Lower Monumental Lock and Dam site. The total length of the structure will be approximately 2,790 feet, and will consist of a nonoverflow section at the south abutment, powerhouse, spillway dam, nonoverflow section, navigation lock, and an earthfill and rockfill at the north abutment. Fish passing facilities including two ladders will be provided. The powerplant will be constructed for three 90,000 kilowatt units to be installed initially with provision for 3 additional units, an ultimate total of 6 units. The spillway dam will be 610 feet long, and the overflow crest at elevation 391 mean sea level will be surmounted by 10 radial gates 50 feet wide by 52.9 feet high which will provide capacity to pass a spillway design flood of 850,000 cubic feet per second. The deck will be at elevation 453 mean sea level and will provide a service road and track for a gantry crane. The navigation lock is a single-lift type and will have clear plan dimensions of 86 feet by 675 feet.

The estimate of cost for new work approved in 1960 is $123,000,000. The existing project was authorized by the River and Harbor Act approved March 2, 1945 (See H. Doc. 704, 75th Cong., 3d sess.).

Operations and results during fiscal year. New Work: The contract for the completion of the powerhouse structure and installation of mechanical and electrical equipment was continued throughout the year. Concrete in the structure and embedded structural items are essentially complete, placement of exposed piping, Government-furnished electrical items, fishway pumps, and other miscellaenous equipment are ahead of schedule. Embedded parts for three 143,000 horsepower turbines are in place, and rotating parts for two turbines have been assembled and placed in the turbine pits. The rotating parts for turbine No. 3 are being assembled in the powerhouse erection bay. The 500-ton powerhouse ridge crane, 35-ton tailrace crane and 50-ton spillway crane are complete and placed in operation.

Construction work on the north shore, consisting of completion of the second-step cofferdam, remaining 2½ spillway bays, north nonoverflow dam, north-shore fish facilities, right abutment embankment section of the dam, and navigation lock, and the installation of all appurtenant mechanical and electrical equipment are well ahead of schedule and over 50 percent complete. There have been 320,000 cubic yards of concrete placed in the navigation lock, spillway, and nonoverflow dam structure during the fiscal year along with pertinent embedded structural-steel items.

A contract for embankment protection of 13 miles of the Spokane, Portland & Seattle Railway along the north bank of the Snake River has been essentially completed. An agreement with the Union Pacific Railroad has been completed, and grading contracts are underway for relocation and embankment protection of 25 miles of roadbed. Track materials for this relocation are under Government-supply contract. A contract for track laying and ballasting for the 25 miles of the Union Pacific line has been awarded. An agreement with the Northern Pacific Railway Co. is being processed and plans and specifications for the embankment protection of 14 miles of this rail line is approximately 90 percent complete.

Supply contracts have been awarded for the design, manufacture, test, and delivery of all major mechanical and electrical powerhouse equipment, including station service transformers, 109,000-kilovolt-ampere transformers, 115 kilovolt circuit breakers, main unit switchboards, fishway automatic control equipment, and 4160-volt switchgear.

Engineering studies were continued for preparation of plans and specifications for navigation channel dredging, floating guard boom, and other miscellaneous construction contracts.

Total costs during the fiscal year were $27,977,829 all for new work.

Condition at end of fiscal year. The powerhouse completion contract, including installation of mechanical and electrical equipment, is approximately 84 percent complete. The north shore construction contract is 50 percent complete.

The contract for embankment protection of 13 miles of Spokane, Portland & Seattle Railway is essentially complete. The relocation grading o section I of Union Pacific Railroad is 64 percent complete, and section II is 69 percent complete. The entire project it 69 percent complete as of June 30, 1960.

Total costs have been $85,354,147, all for new work.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960¹ ²
	1956	1957	1958	1959	1960	Total to June 30, 1960¹ ²

New Work
Appropriated	$1,000,000	$10,700,000	$25,973,000;	$19,133,000	$29,299,000	$87,337,173
Cost	1,286,041	10,130,947	25,924,317	18,812,945	27,977,829	85,354,147
¹Includes $150,000 preauthorization studies. ²Does not include $82,500 contributed funds for artificial spawning channel.
Other new work data:
Unobligated balance, June 30, 1960						$63
Appropriated for succeeding fiscal year ending June 30, 1961						25,400,000
Unobligated balances available for succeeding fiscal year ending June 30, 1961						25,400,063
Estimated additional amount needed to be appropriated for completion of existing project						10,262,827

5. McNARY LOCK AND DAM, COLUMBIA RIVER, OREG.

Location. The site of this project is on the Columbia River, 292 miles above the mouth, near Umatilla, Oreg., and 3 miles above the mouth of the Umatilla River.

Existing Project. This project provides for a dam, power plant, navigation lock, for power, navigation, and incidental irrigation. The dam which raises the normal water surface approximately 85 feet to elevation 340 mean sea level, is approximately 7,300 feet long and consists of an earthfill and rockfill dam at the Oregon (south) abutment, powerhouse, spillway dam, navigation lock and earthfill and rockfill dam at the Washington (north) abutment. The powerhouse has an installation of 14 units of 70,000 kilowatts each, totaling 980,000 kilowatts. The spillway dam is 1,310 feet long, and the overflow crest at 291 feet above sea level is surmounted by 22 vertical-lift gates placed between piers which extend to elevation 361 mean sea level where a service roadway permits the operation of two 200-ton gantry cranes for regulating the gates. The navigation lock is a single-lift type, capable of operating at all flows less than 1,300,000 cubic feet per second. Facilities for the upstream migration of fish consist of two fish ladders, a lock and an elevator. All structures are founded on a massive basalt flow that reaches a maximum thickness of 130 feet and directly overlies a sedimentary interbed. The pool created by the dam provides a navigable channel with a depth of 12 feet or over between the dam and the confluence of the Yakima River, a distance of approximately 48 miles. A controlling depth of 9 feet will be provided on Snake River from its mouth to a point approximately 10.2 miles above the mouth.

The principal data concerning the navigation lock and spillway dam are shown in the following table:

Navigation Lock
Type	Single lift
Dimensions:
Net clear width of chamber	86 feet
Net clear length	675 feet
Lift (vertical):
At extreme low water and normal pool	92 feet
At mean annual flow (190,000 cubic feet per second)	84.4 feet
At average maximum flow (550,000 cubic feet per second)	72.3 feet
Depth over miter sill at adopted low water (43,000 cubic feet per second)	12 feet
Depth over upper sill at normal pool (elevation 340)	20 feet
Character of foundation	Basalt flow
Spillway Dam
Over-all length of spillway dam section	1,310 feet
Type of construction	Concrete gravity
Elevation spillway crest	291 feet above mean sea level
Elevation deck	361 feet above mean sea level
Height, maximum (foundation to deck)	158 feet
Type of control	Fixed wheel segmental lift gates
Number of gates	22
Size of gates	50 by 53 feet
Stilling basin type	Concrete apron with baffles
Normal pool elevation	340 feet above mean sea level
Maximum pool elevation	356.5 feet above mean sea level
Maximum spillway capacity at normal pool elevation	1,480,000 cubic feet per second
Maximum spillway capacity at maximum pool elevation	2,200,000 cubic feet per second

The estimated cost of the dam, navigation lock, 14-power unit generating installation, fishways, and attendant buildings and grounds, revised in 1960, is $294 million. The average annual maintenance cost during the past 5 years was $1,499,210.

The existing project was authorized by the River and Harbor Act approved March 2, 1945. (See H. Doc. 704, 75th Cong., 3d Sess.)

Operations and results during fiscal year. New work: A contract was awarded for landscaping and grounds development in the vicinity of the powerhouse and includes the following: Installation of an automatic sprinkler system, a public rest room, seeding and planting, picnicking facilities, roads, parking area, and overlook. Engineering design have been completed for fiscal year 1961 construction of additional pumping facilities at Kennewick Levee 15E, and for remote control of spillway gates, and for sandblasting facilities. Completion of installation of remote control of main generator units is being accomplished.

Recreation facilities constructed during the fiscal year at McNary Reservoir include a road, parking areas, a boat-launching ramp, water supply, and beach grading.

A total of 843,200 persons visited the project during calendar year 1959.

During the fiscal year, a total of 5,386,707 kilowatt hours of electrical hours were delivered to Bonneville Power Administration, the marketing agency.

A total of 1,069,335 tons, consisting mainly of wheat and petroleum products passed through the locks.

Total costs during the fiscal year were $674,504 for new work and $1,652,116 for maintenance.

Condition at end of fiscal year. Construction of existing project was begun on May 5, 1947. Initial construction was 99 percent complete at the end of fiscal year 1959; however, the addition of alterations to railroad bridges on the Columbia and Snake Rivers to reduce navigation hazards has decreased the percentage complete to 97. The navigation lock, dam, fish facilities, powerhouse structure, levees, pumping plants (*except for additional pumping facilities at Kennewick levee 15E), and relocations are complete. Minimum essential recreational facilities are approximately 40 percent complete.

The project was placed on a permanent operation basis on December 1, 1953. The pool was raised to normal operating elevation 340 on December 6, 1953. All 14 power units were in commercial operation at the end of the fiscal year.

Total costs have been $285,855,143 for new work and $8,928,315 for maintenance.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	$11,185,000	$4,500,100	$740,000	$500,000	$1,144,000	$286,456,246¹ ²
Cost	9,381,920	2,385,086	1,243,799	638,759	674,504	285,855,143¹ ²
Maintenance
Appropriated	1,250,000	2,684,800	1,735,000	1,645,700	1,657,770	8,980,970
Cost	1,226,078	1,258,620	1,715,302	1,643,934	1,652,116	8,928,315
¹Includes $185,000 donated funds. ²Increased in 1960 to include $347,246 preauthorization studies.
Other new work data:
Unobligated balance for year ending June 30, 1960						$564,263
Unobligated balances available for succeeding fiscal year ending June 30, 1961						564,263
Estimated additional amount needed to be appropriated for completion of existing project						7,543,754

6. JOHN DAY LOCK AND DAM, COLUMBIA RIVER, WASH. AND OREG.

Location. The site of this project is on Columbia River, about 3 miles downstream from the mouth of John Day River and about 215 miles above the mouth of Columbia River.

Existing Project. The project was originally authorized by the Flood Control Act approved May 17, 1950, in accordance with the plan presented in House Document 531, 81st Congress, 2d session, to provide for a dam, powerplant, navigation lock and appurtenant facilities, with a slackwater pool about 75 miles long extending to McNary Lock and Dam, and the relocations of railroads, highways, utilities, and communities affected by the proposed reservoir. Under this plan the project would provide 2,000,000 acre-feet of surcharge storage space between normal pool elevation 255 and elevation 292 for control of floods on Columbia River. The powerhouse would provide 13 generating units of 85,000 kilowatts each for a total initial installed capacity of 1,105,000 kilowatts.

Subsequent to project authorization noted above a review of the flood-control features of John Day Dam was authorized by resolution of the Senate Committee on Public Works dated April 22, 1953. This review, dated March 25, 1955, and revised December 14, 1955, determined that the originally proposed pool fluctuation between elevations 255 and 292 would unduly handicap present and future developments bordering John Day pool. It recommended adoption of normal pool at about elevation 262 with about 500,000 acre-feet of flood storage space to be obtained between proposed drawdown level at elevation 252 and maximum controlled pool not to exceed elevation 265. Other features of the project would remain essentially unchanged. The Review Report was approved by the Board of Engineers for Rivers and Harbors on January 19, 1956, and submitted to the Congress August 9, 1956, where it was ordered to be printed as Senate Document 10, 85th Congress, 1st session.

The revised project proposed in the Review Report is economically feasible to a slightly greater degree than the project as originally authorized. In addition, it has the firm support of local interests, whereas the original proposal is strongly opposed. Also, planning funds appropriated in fiscal years 1956 and 1957 were based on continuation of studies using pools and storage recommended in Review Report. In view of this situation and contingent upon indicated approval of the Public Works Committees of Congress, the Review Report plan is considered to represent the presently authorized project.

Funds available for advance engineering for fiscal year 1956 were accordingly used in further development of the Review Report plan and a Site Selection Report was prepared under date of June 15, 1956. Funds available for advance engineering for fiscal year 1957 were used for general design memorandum studies. In accordance therewith, a normal pool level at elevation 265 now appears to be most economical with flood-control storage space in the amount of 500,000 acre-feet available between elevations 257 and 268. The project would include a single lift navigation lock, 86 feet wide by 675 feet long, in clear dimensions, with a normal lift of 105 feet; spillway, with twenty 50 x 58-foot gates, would be designed to pass a flood of 2,250,000 cubic feet per second at maximum pool elevation 276 above mean sea level; and fish ladders and other facilities as necessary would be provided for passage of migratory fish.

Conclusions from completed power studies indicate an initial installation of not less than 8 units and an ultimate installation of 20 units. The nameplate rating of each unit has been increased from 108,700 kilowatts to 135,000 kilowatts. In accordance with inclusion of the completed power studies, the initial power installation will consist of at least 8 units at 135,000 kilowatts each—a total of 1,080,000 kilowatts.

The estimated cost of new work, revised in 1960 is $400,000,000.

Operations and results during fiscal year. Various contracts were initiated or continued, their present status being as follows: Contracts for the first step cofferdam, lock, and spillway preliminary excavation were completed. A contract for the construction of the navigation lock, spillway, and north embankment was awarded in December 1959, and is now approximately 20 percent complete.

Contracts for relocation of facilities in the reservoir have been awarded, their present status being as follows: Rearrangement of main telephone toll line, 96 percent complete; relocation of power facilities, 55 percent complete; reconstruction of an elementary school, 3 percent complete. Agreements have been negotiated with the Union Pacific Railroad and Oregon State Highway Department for the construction of two detours, but no work has been initiated. A contract for a shoofly and detour was awarded late in June 1960, and work has not yet been initiated.

Preparation of plans and specifications for the relocation of railroads, highways, and communities is progressing. Design studies on the powerhouse and other remaining features of the dam are progressing.

Total costs during the fiscal year were $14,718,821, all for new work.

Condition at end of fiscal year. The project is 6.2 percent complete. Total costs have been $24,946,442, all for new work.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	$550,000	$1,475,000	$916,000¹	$7,554,000	$14,335,000	$25,180,000¹
Cost	590,319	1,349,345	845,302	7,092,655	14,718,821	24,946,442¹
¹Includes $350,000 preauthorization studies.
Other new work data:
Unobligated balance, June 30, 1960						$19,479
Appropriated for succeeding fiscal year ending June 30, 1961						32,950,000
Unobligated balances available for succeeding fiscal year ending June 30, 1961						32,969,479
Estimated additional amount needed to be appropriated for completion of existing project						341,870,000

7. COLUMBIA RIVER AND TRIBUTARIES ABOVE CELILO FALLS TO KENNEWICK, WASH.

Location. This project includes improvement of 128 miles of the Columbia River between the head of Celilo Falls and Kennewick, Wash. (See U.S. Geological Survey Map of Washington.)

Previous Project. The original project was adopted by the River and Harbor Act of June 10, 1872, and modified by the River and Harbor Act of March 2, 1907. For further details, see page 1992 of Annual Report for 1915; page 1889, Annual Report for 1931; and page 1845, Annual Report for 1938.

Existing Project. This provides for a channel 7 feet deep and 150 feet wide at low water from Celilo Falls to Wallula, with no specified depth or width between Wallula and the mouth of the Snake River and for an approach channel 6 feet deep at low water from the navigation channel in the Columbia River to the site of port development at Arlington, Oreg.

The actual cost for new work exclusive of amounts expended on the previous project was $1,356,584. The average annual maintenance cost during the past 5 years was $9,154.

The incompleted channel rectification work at Owyhee Rapids, Squally Hook, Squally Hook and at Indian Rapids, is classified as inactive and is excluded from the foregoing cost estimate. The cost of this portion revised in 1954 is estimated to be $419,000.

Construction of The Dalles Dam and raising of the reservoir has provided a slackwater pool extending upriver to the site of John Day Dam and has provided slackwater over the lower 25 miles of the original project. Creation of the pool behind McNary Dam (river mile 292) has provided slackwater over the upper 36 miles of the original project. The remaining reach of the river included in this project is comprised of approximately 67 miles of open river between The Dalles Pool and McNary Dam. Upon creation of the pool behind John Day Dam, slackwater will also be provided over this reach of the river.

The existing project was authorized by the following:

Acts	Work authorized	Documents¹

Apr. 8, 1935	Emergency Relief Appropriation Act authorized the existing project as an Emergency Relief project.	Rivers and Harbors, Committee Doc. 16, 73d Cong., 2d sess.
Aug. 30, 1935	Adopted existing project as a river and harbor project.	Rivers and Harbors, Committee Doc. 16, 73d Cong., 2d sess.
Mar. 2, 1945	Arlington approach channel	S. Doc. 28, 76th Cong., 1st sess.
Mar. 2, 1945	Kennewick approach channel	H. Doc. 324, 77th Cong., 1st sess.²
¹Contains latest published map. ²Construction of McNary Dam has obviated the necessity for this work.

Local cooperation. The River and Harbor Act approved March 2, 1945, provides that for the Arlington Channel, local interests give assurances that they will construct a suitable freight terminal, open to all on equal terms. These assurances were approved December 29, 1947, but a suitable freight terminal has not been constructed.

Terminal facilities. There is one public dock and terminal on this stretch of river located at Pasco, Wash. (river mile 328.3), and owned by the port of Pasco. Located adjacent to the wharf are the following: (a) A bulk grain elevator of 500,000-bushel capacity, and served by rail, water, and truck transportation. Within the structure is a warehouse for handling general cargo. (b) Storage facilities for a total of 11,000,000 gallons of petroleum products, 10,000,000 of which are served by rail, water, truck, and pipeline transportation, the remaining 1,000,000 gallons being served by water and truck only.

Privately owned storage facilities for handling waterborne commerce with capacities and locations are as follows: A bulk grain elevator of 2,000,000-bushel capacity, with rail, truck, and water connections is located at Kennewick, Wash. (river mile 328.2); a 300,000-bushel capacity grain elevator at Arlington, Oreg. (river mile 241.9); and a 335,000-bushel elevator at Umatilla, Oreg. (river mile 289.3). Other facilities for handling bulk grain from truck to river craft, but without rail connections are as follows: A bulk grain elevator of 400,000-bushel capacity at Port Kelley, Wash. (river mile 311.9); a 540,000-bushel elevator at Patterson, Wash. (river mile 278.6); and directly across the Columbia River from Patterson, Wash., a 670,000-bushel elevator. At the mouth of the Walla Walla River (river mile 313.9), the Port of Walla Walla is constructing a 1,000,000-bushel grain storage and water shipping facility. At Umatilla, Oreg. (between mile 289.4 and 290.2 above the mouth), there are storage facilities for handling approximately 9,200,000 gallons of petroleum products and 448,500 gallons of aqua ammonia, with truck, rail, and water connections. There is a railroad located on each bank of the river, but there is no physical connection between the railroad and the river except as noted. At Irrigon, Oreg. (river mile 278.7), there is a privately owned wharf for the shipment of lumber and general cargo by barge. Also, on the Oregon shore across the river from Patterson, Wash., there is a privately owned dock for the shipment of general cargo by barge.

Located on the Snake River, main tributary of the Columbia River (between mouth and mile 2.7), there are privately owned storage facilities for handling the following: Approximately 46,818,000 gallons of petroleum products, with truck, rail, water, and pipeline connections; 11,411,155 pounds of anhydrous ammonia; 893,646 gallons of aqua ammonia; 25,112 gallons of sulphuric acid; 32,606 barrels of asphalt emulsions with truck, rail, and water connections; and storage facilities for 11,199 barrels of bulk cement.

Operations and results during fiscal year. New work in this reach of the river is being continued and reported in connection with John Day lock and dam project.

Soundings were taken of dredging at Four O'clock Rapids, Miller's Drift, Canoe Encampment, Owyhee Rapids, and in the entrance to McNary lock. Soundings were made before and after dredging. The work was performed at a cost of $5,047.

Condition at end of fiscal year. The authorized 7-foot channel 150 feet wide has been completed to McNary lock and dam. The controlling depth between the head of The Dalles Pool and McNary Dam is 7 feet, based on a survey in August,1959. For that portion of the project within McNary pool and The Dalles pool the depths are in excess of 7 feet with minimum depth of 15 feet over upper lock sills.

The Arlington approach channel was completed in 1948.

Total costs have been $2,228,289 of which $1,356,584 (including $400,000 Emergency Relief Administration funds) was for new work and $871,705 for maintenance.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960¹ ²
	1956	1957	1958	1959	1960	Total to June 30, 1960¹ ²

New Work
Appropriated	—	—	—	—	—	$1,851,195
Cost	—	—	—	—	—	1,851,195
Maintenance
Appropriated	$1,250	$8,000	$26,973	$4,700	$4,950	972,636
Cost	1,203	7,485	27,535	4,502	5,047	972,535
¹Includes $494,611 for new work and $100,830 for maintenance from previous projects. ²In addition $25,000 for new work was expended from contributed funds.

8. NAVIGATION PROJECTS ON WHICH RECONNAISSANCE AND CONDITION SURVEYS ONLY WERE CONDUCTED DURING THE FISCAL YEAR

Name of Project	Cost during fiscal year	Date reconnaissance or condition survey conducted

Columbia River Channel—Celilo to Kennewick	$5,407	July, Aug., Sept., and Oct., 1958

9. OTHER AUTHORIZED NAVIGATION PROJECTS

Name of project	For last full Report see Annual Report for—	Cost and expenditures to June 30, 1960		Estimated amount required to Complete
Name of project	For last full Report see Annual Report for—	Construction	Operation and Maintenance	Estimated amount required to Complete

Umatilla Harbor	1952	—	—	$678,000¹
¹No funds appropriated for work. Inactive.

10. COLUMBIA RIVER BASIN, LOCAL FLOOD-PROTECTION PROECTS

Location. The improvements included in this project are located along the Columbia River and its tributaries within the confines of the Walla Walla, Wash., District.

Existing Project. The Flood Control Act approved May 17, 1950, approved a general comprehensive plan for the Columbia River Basin for flood control and other purposes as set forth in House Document 531, 81st Congress, 2d session, and authorized to be appropriated the sum of $75,000,000 to be appropriated for the partial accomplishment of certain projects. Of this authorization, an amount not to exceed $15,000,000 was authorized for local flood-protection works throughout the Columbia River Basin, subject to the conditions that all work undertaken pursuant to this authority shall be economically justified prior to construction, and local cooperation specified in the 1936 Flood Control Act, as amended, shall be required. Protection to the following areas, located in the Walla Walla district, is being considered under this latter authorization:

Project	Federal Cost	Status June 30, 1960
Project	Federal Cost	Appropriated	Cost

Teton River, Idaho (not justified)		$10,387	$10,387
Heise-Roberts Extension, Idaho	$6,120,000	36,177	35,686
Mud Lake Area, Idaho (not justified)		5,996	5,996
Shelley Area, Snake River, Idaho¹	32,335	32,335	32,335
Blackfoot Area, Snake River, Idaho¹	42,796	42,796	42,796
Blackfoot River, Idaho²	330,000	66,091	37,408
Portneuf River and Marsh Creek, Idaho¹	1,420,000	103,476	103,476
Little Wood River, Idaho (Carey)²	64,000	21,334	21,334
Camas Creek, Idaho (not justified)		10,680	10,680
Boise Valley, Idaho	650,000	98,800	38,511
Malheur River, Oregon (Vale Unit)²	279,500	279,569	109,211
Payette Valley, Idaho (not justified)		23,178	23,178
Weiser River, Idaho²	560,000	94,427	94,427
Whitebird Creek, Idaho³		1,896	1,896
Grande Ronde Valley, Oregon¹	8,670,000	133,458	133,458
South Fork Clearwater River, Idaho³		3,899	3,899
Kendrick, Potlatch River, Idaho²		59,641	59,641
Palouse River, Washington	678,000	1,600	1,600
Mill Creek, Washington (not justified)		3,537	3,537
Touchet River, Washington (not justified)		11,198	11,198
Lower Walla Walla River, Washington (not justified)		4,000	4,000
Umatilla River, Oregon²	883,000	28,145	28,145
John Day River Area, Oregon	715,000	24,772	19,485
¹Reported under "Other Authorized Flood Control Projects." ²The economic justification of work proposed has been established in compliance with conditions set forth in the Flood Control Act of 1950. Reported in detail in an individual report. ³Construction of emergency work at this location has obviated the need for improvements. Note: This list does not include improvements in Portland and Seattle Districts.

Local Cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended, applies to all the flood-control projects.

Operations and results during fiscal year. Justification report studies were continued on Heise-Roberts Extension, Idaho, and on John Day River, Oreg.

The general design memorandum for Blackfoot River project was approved by higher authority, subject to certain revisions which were accepted by local interests. A flood-control district has been formed and the district placed on the tax roll.

A justification report, with negative findings, was completed for Camas Creek, Idaho.

A supplemental letter report on Boise Valley, Idaho, was submitted to higher authority on December 1, 1959, to be incorporated as part of the justification report previously submitted and returned to the District Engineer in 1959 for reevaluation.

Plans and specifications were completed for the Malheur River, Oreg. (Vale Unit) project. A construction contract was awarded and work started in May 1960.

The general design memorandum was completed for Weiser River, Idaho.

Due to inability of local interests to fulfill sponsorship agreements, progress has been deferred on the preparation of plans and specifications for Umatilla River, Oreg.

Preparation of plans and specifications were discontinued on Little Wood River, Idaho, Vicinity of Carey, because of lack of local cooperation.

A contract was awarded and construction of Kendrick, Potlatch River, Idaho, was completed.

Total costs for the fiscal year were $133,373.

Condition at end of fiscal year. Justification reports have progressed to the following extent of completion: Heise-Roberts Extension, Idaho—95 percent; John Day River, Oreg.—30 percent.

Local interest agreement to sponsorship of the Blackfoot River, Idaho, project has been obtained prior to initiating preparation of plans and specifications.

A justification report on Camas Creek, Idaho, has been completed, and findings are negative. The project has been placed in an inactive status as of January 26, 1960.

A justification report and supplemental letter report for Boise Valley project is being reviewed by higher authority.

Construction of Malheur River, Oreg. (Vale Unit) project is 10 percent complete.

A general design memorandum for Weiser River has been completed and recommends construction of flood protective works.

Umatilla River, Oreg., (Echo) project has been reclassified to inactive status until local interests agree to sponsorship requirements.

A justification report has been completed and recommends construction of flood protective works at Little Wood River, Idaho, Vicinity of Carey. The project has been reclassified as inactive because of lack of local cooperation.

Construction of Kendrick, Potlatch River, Idaho, project started in June 1959, and work was completed in October 1959.

Total costs to date have been $832,584.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960^{1 2 3 4}
	1956	1957	1958	1959	1960^{1 2 3 4}	Total to June 30, 1960^{1 2 3 4}

New Work
Appropriated	—$276	$76,795	—$5	$42,741	$34,163	$236,119
Cost	4,165	21,055	23,399	26,302	19,647	170,053
¹Excludes Shelley Area, Snake River, Idaho; Blackfoot Area, Snake River, Idaho; Portneuf River and Marsh Creek, Idaho; and Grande Ronde Valley, Oreg;, reported under "other authorized flood-control projects." ²Excludes Blackfoot River, Idaho; Little Wood River, Idaho; Malheur River, Oreg.; Weiser River, Idaho; Kendrick, Potlatch River, Idaho; and Umatilla River, Oreg. reported in detail in an individual report. ³Includes $57,500 preauthorization studies. ⁴Does not include amounts for improvements in Portland and Seattle Districts.
Other new work data:
Unobligated balance, fiscal year ending June 30, 1960						$66,066
Appropriated for succeeding fiscal year ending June 30, 1961						22,300
Unobligated balances available for succeeding fiscal year ending June 30, 1961						88,366

11. JACKSON HOLE, SNAKE RIVER, WYO.

Location. This project is located on both banks of the Snake River in the vicinity of Wilson, Wyo.

Existing Project. The plan of improvement provides for a levee with full riprap protection on the right bank, extending from the J.Y. Ranch, which is 10 miles upstream from the Jackson-Wilson Highway Bridge to a point 3.5 miles below the same bridge—a total length of 13.5 miles. The plan also provides for a levee with full riprap protection along the left bank, extending from the north line of the Lucas Ranch, which is 10 miles upstream from the Jackson-Wilson Highway Bridge to a point 5 miles downstream and extending 1.5 miles immediately upstream from the Jackson-Wilson Highway Bridge to a point 3.5 miles below the bridge for a total length of 10 miles. The existing project was authorized by the Flood Control Act approved May 17, 1950 (Public Law 516, 81st Cong., 2d sess.). The estimated cost revised in 1959 is $2,470,000 for construction. The costs of rights-of-way are to be paid by local interests.

Local cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended, applies.

Assurance of local cooperation of Teton County, Wyo., the sponsoring agency, supported by a commitment of the Governor of Wyoming to provide financial aid from emergency funds, was accepted with the express understanding that construction would be limited to the work on both banks of the river upstream from the Jackson-Wilson Bridge pending action by the State. Adequate legislation was not enacted during the 1959 session, and no further action can be expected until the legislature reconvenes in January 1961. That portion of the project below the highway bridge has been deferred until such time as satisfactory assurances are furnished.

Operations and results during fiscal year. Construction by contract of levees and relocation of irrigation headgates upstream from the Jackson-Wilson Bridge was completed.

Total costs during the fiscal year were $708,937, all for new work.

Condition at end of fiscal year. Construction of the existing project was initiated in November, 1957, and is 70 percent complete. The remaining work is contingent upon action by the Wyoming State legislature to provide maintenance funds for the project. Total costs have been $1,542,752.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	$45,000	$400,000	$56,000	$320,000	$665,000	$1,551,000¹
Cost	42,959	31,532	417,977	276,960	708,937	1,542,752¹
¹Includes $12,000 preauthorization studies
Other new work data:
Unobligated balance, June 30, 1960						$8,137
Unobligated balances available for succeeding fiscal year ending June 30, 1961						8,137
Estimated additional amount needed to be appropriated for completion of existing project						919,000

12. BLACKFOOT RIVER, COLUMBIA RIVER BASIN, IDAHO

Location. This project is located on the Blackfoot River on the eastern boundary of the Fort Hall Indian Reservation near the city of Blackfoot in Bingham County, Idaho.

Existing project. The project provides for widening, deepening, and shortening the river channel and for erection of levees through a 5-mile reach of river from river mile 10.8 to 16. It also provides for a floodwater diversion channel at river mile 10.8 to the Snake River in order to protect the lower 11 miles of Blackfoot River valley lands.

The existing project was conditionally authorized under section 204 of the Flood Control Act, approved May 17, 1950 (Public Law 516, 81st Cong., 2d sess.), subject to economic justification. Economic justification was established in fiscal year 1958. The estimated cost, revised in 1960 is $330,000 for construction.

Rights-of-way and relocations of public utilities and bridges will be furnished by local interests.

Operations and results during fiscal year. Meetings were held with local interests to obtain sponsorship agreements prior to initiating preparation of plans and specifications.

Total costs during the fiscal year were $2,558.

Condition at end of fiscal year. Local interests have agreed to sponsorship requirements and formation of a flood control district is nearly complete. No construction has been done.

Total costs have been $37,408.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	—	$10,000	—	$42,191	$12,000	$66,091¹
Cost	—	9,179;	$815	22,956	2,558	37,408¹
¹Includes $1,900 preauthorization studies.
Other new work data:
Unobligated balance, June 30, 1960						$28,683
Appropriated for succeeding fiscal year ending June 30, 1961						274,000
Unobligated balances available for succeeding fiscal year ending June 30, 1961						302,683

13. LITTLE WOOD RIVER, COLUMBIA RIVER BASIN, IDAHO

Location. The project is located in south-central Idaho approximately 65 miles north of Twin Falls, in the vicinity of Carey.

Existing project. The plan of improvement provides for intermittent channel rectification, levees and a diversion into the lava beds downstream from the town of Carey.

The existing project was authorized under the Columbia River Basin plan by the Flood Control Act approved May 17, 1950 (Public Law 516, 81st Cong., 2d sess.) subject to economic justification. Economic justification was established in fiscal year 1958. The estimated cost, revised in 1958, is $64,000 for construction. Rights-of-way, relocations and alteration of existing facilities are the responsibility of local interests.

Local Cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended, applies.

Operations and results during fiscal year. Preparation of plans and specifications, begun in October 1958, were discontinued because of inability of sponsor to meet local requirements. Total costs during the fiscal year were $2,042.

Condition at end of fiscal year. Carey Flood Control District No. 2 advised the Walla Walla District Engineer that they are not able to satisfy the requirements for sponsorship of the project. This project has been reclassified as inactive. No construction has been accomplished.. Total costs have been $21,334.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	—	$6,000	—	$58,000	—$42,669	$21,334
Cost	—	5,632	$371	13,289	2,042	21,334
Note. Project reclassified "Inactive."

14. LUCKY PEAK RESERVOIR, BOISE RIVER, IDAHO

Location. On the Boise River in southwestern Idaho approximately 9 miles southeast of the city of Boise, and approximately 12 miles downstream from Arrowrock Reservoir.

Existing Project. The plan of improvement provides for construction of a rolled earth-fill dam approximately 250 feet high and 1,700 feet long at the crest, with a reservoir providing a total storage, at normal pool level, of 306,000 acre-feet. The ungated ogee type spillway with unlined channel is located on the left abutment and is designed to pass 93,000 cubic feet per second at maximum pool. The outlet works located on the left abutment consist of a tunnel controlled by six 5-feet by 10-feet slide gate valves.

The plan contemplates the joint use of storage in Lucky Peak, Arrowrock, and Anderson Ranch Reservoirs. Operations of the dam as a flood-control facility will be by the Department of the Army under the direction of the Secretary of the Army with the understanding that complete or partial joint use of the storage in the three reservoirs may be undertaken at such time as may be agreed upon by the Secretary of the Army, Secretary of the Interior, and local interests concerned with flood control and use of irrigation water. The existing project was authorized by the Flood Control Act approved July 24, 1946. The latest (1960) approved estimated project cost is $19,150,000. The average annual maintenance cost during the past 5 years was $69,551.

Local Cooperation. No conditions were imposed by law.

Operations and results during fiscal year. New Work: Work by contract was completed on additional parking areas and boat launching ramps at three public use areas.

Maintenance: Normal operation and maintenance of the project was continued. The existing recreation areas are receiving high usage, 667,700 persons having visited the project during calendar year 1959.

Total costs during the fiscal year were $55,689 for new work and $73,669 for maintenance.

Condition at end of fiscal year. Construction of the existing project which was initiated in November 1947 is 99 percent complete. The dam and appurtenant works are complete. Relocation of State and county roads is 99 percent complete, recreation facilities are 48 percent complete, and permanent operating equipment is 83 percent complete. Revisions to Arrowrock Dam by the Bureau of Reclamation are complete.

Total costs have been $18,988,784 for new work and $357,424 for maintenance.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	$500,000	—	$70,000	$288,500	—	$19,063,500
Cost	372,809	$148,461	370,927	384,197	$55,639	18,988,784
Maintenance
Appropriated	56,000	65,000	80,600¹	73,400	72,800	357,500
Cost	54,858	64,841	81,662	72,726	73,669	357,424
Other new work data:
Unobligated balance, June 30, 1960						$74,716
Appropriated for year ending June 30, 1961						86,500
Unobligated balance available for succeeding fiscal year ending June 30, 1961						161,216

15. MALHEUR RIVER, COLUMBIA RIVER BASIN, OREG.

Location. This project is located along Willow Creek, Bully Creek, and Malheur River in the vicinity of Vale in Malheur County, Oreg.

Existing Project. The project provides for channel improvements, levees, and bank stabilization on approximately 2 miles of the Malheur River, and the lower 0.7 mile of Bully Creek in and adjacent to the vicinity of Vale, Oreg.; and channel improvements and levees along the lower 24 miles of Willow Creek.

The existing project was authorized under the Columbia River Basin Plan by the Flood Control Act approved May 17, 1950 (Public Law 516, 81st Cong., 2d sess.) subject to economic justification. The economic justification of this work was established in fiscal year 1957. The estimated cost, revised in 1959, is $329,569 excluding the Willow Creek area, the cost of which revised in 1958 was $269,000, and which as been reclassified as inactive.

Local Cooperation. Section 3 of the flood Control Act approved June 22, 1936, as amended, applies. In addition, local interests must accomplish all relocations and alterations to existing facilities at their own expense. Formal assurance has been given that all conditions will be met.

Operations and results during fiscal year. Preparation of plans and specifications for the Vale unit were continued. A contract was awarded in May 1960 and construction began Total costs during the fiscal year were $59,792.

Condition at end of fiscal year. The general design memorandum and plans and specifications for the Value unit are complete. Construction is 10 percent complete. Total costs have been $109,211.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	$6,000	—	$25,000	$28,367	$212,502	$279,569¹
Cost	10,074	$413	18,997	17,050	59,792	109,211¹
¹Includes $2,700 preauthorization studies.
Other new work data:
Unobligated balance, fiscal year ending June 30, 1960						$25,374
Appropriated for succeeding fiscal year ending June 30, 1961						50,000
Unobligated balances available for succeeding fiscal year ending June 30, 1961						75,374

16. WEISER RIVER, COLUMBIA RIVER BASIN, IDAHO

Location. This project is located along Weiser River in the vicinities of Weiser, Midvale, and Cambridge in Washington County, Idaho.

Existing Project. The project provides for channel rectification and levees along Weiser River for 13 miles near Weiser, 7 miles in the vicinity of Midvale, and 7 miles in the vicinity of Cambridge.

The existing project was authorized under the Flood Control Act approved May 17, 1950 (PL 516, 81st Cong., 2d Sess.), subject to economic justification. Economic justification was established in 1956.

The estimated Federal cost, revised in 1960, is $560,000. The costs of rights-of-way and highway and utility revisions will be paid by local interests.

Local Cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended, applies. In addition, local interests must accomplish all relocations at their own expense.

A local flood control district was organized in 1954.

Operations and results during fiscal year. Preparation of a general design memorandum was completed. Total costs during the fiscal year were $6,260.

Condition at end of fiscal year. Economic justification was established in 1956 and the project is considered fully authorized. Preparation of the general design memorandum is complete. Total costs have been $94,427.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	—$4,000	—$852	$70,000	$6,538	$741	$94,427
Cost	3,461	127	4,522	66,497	6,260	94,427¹
¹Includes $6,000 preauthorization studies.
Other new work data:
Estimated additional amount needed to complete project						$465,573

17. BRUCES EDDY DAM AND RESERVOIR, NORTH FORK CLEARWATER RIVER, IDAHO

Location. The site of Bruces Eddy Dam is located on the North Fork of the Clearwater River 1.9 miles above its junction with the Clearwater River, near Orofino, Idaho, and about 35 miles east of Lewiston, Idaho.

Existing Project. The current project authorization is limited to detailed planning. The project, on the basis of survey studies performed, would consist of a rock-fill dam 570 feet in effective height and 2,500 feet in length at the crest. The dam would create a reservoir having a gross storage capacity of 2,460,000 acre-feet of which 1,433,000 acre-feet would be effective for both local and regional flood control, and for at-site and downstream power generation. In addition, the reservoir pool, extending 49 miles into a rugged and relatively inaccessible timberland, would provide important transportation savings in connection with movements of marketable logs and also afford substantial recreational benefits.

No significant runs of salmon occur in Clearwater River; however, considerable migrations of steelhead trout are recorded at the Washington Water Power Co. Dam at Lewiston, Idaho, near the mouth of Clearwater River. Accordingly, it is proposed that fish passage facilities will be provided at Bruces Eddy Dam to accommodate present fish movements and improve existing runs.

The existing project has not been authorized for construction, however, detailed planning was authorized by the Flood Control Act approved July 3, 1958 in accordance with general plans presented in Senate Document 51, 84th Congress, 1st Session.

Local Cooperation. No conditions of local cooperation have been imposed by law nor are capital expenses therefor proposed in the project document. The project document does, however, recommend that operation and maintenance of log-passing facilities at the dam be the responsibility of users of these facilities.

Operations and results during fiscal year. Preparation of the general design memorandum was continued. This has included foundation drilling at the damsite, reservoir surveys, and design studies to determine the type of dam most economically suitable to the Bruces Eddy site.

Office studies relating to hydrology, power, navigation benefits, and construction problems were also accomplished.

Total costs during the fiscal year were $662,978, all for new work.

Condition at end of fiscal year. The general design memorandum is approximately 88 percent complete. Total costs have been $1,233,934, all for new work.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	—	—	—	$630,000	$741,000	$1,371,000¹
Cost	—	—	—	570,956	662,978	1,233,934¹
¹Includes $130,000 preauthorization studies. ²Construction not yet authorized.
Other new work data:
Unobligated balance, fiscal year ending June 30, 1960						$135,825
Appropriated for succeeding fiscal year ending year ending June 30, 1961						600,000
Unobligated balances available for succeeding year ending June 30, 1961						$735,825
Estimated additional amount needed to be appropriated for completion of existing project						²

18. KENDRICK, POTLATCH RIVER, COLUMBIA RIVER BASIN, IDAHO

Location. This project is located along Potlatch River at Kendrick in Latah County, Idaho.

Existing Project. The project provides channel rectification and construction of a revetted levee along some 3,000 linear feet of the right bank of Potlatch River.

The existing project was authorized under the Columbia River Basin Plan by the Flood Control Act approved May 17, 1950 (Public Law 516, 81st Cong., 2d sess.) subject to economic justification. Economic justification of this work was established in fiscal year 1956. Rights-of-way and highway and utility relocations will be paid by local interests.

Local Cooperation. Section 3 of the flood Control Act approved June 22, 1936, as amended, applies. In addition, local interests must accomplish all relocations at their own expense.

Operations and results during fiscal year. The contractor was given notice to proceed and work was completed during the fiscal year. The project was turned over to the sponsor for operation and maintenance. Total costs for the fiscal year were $42,949.

Condition at end of fiscal year. Work started in July 1959, and was completed in October 1959. Total costs have been $59,941.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	—$69	$4,000	$102,000	—$115	—$49,875	$59,941
Cost	1,618	3,866	7,051	2,180	42,949	59,941

19. COLFAX, PALOUSE RIVER, WASHINGTON

Location. This project is located on the Palouse River and the south fork of the Palouse River at and adjacent to their confluence and on Spring Flat Creek in eastern Washington.

Existing Project. This provides for flood control works in the vicinity of and through Colfax, Wash., by channel enlargement and modification, levees, floodwalls, revetments, and modification of railroad bridges. The estimated cost revised in 1960 is $3,690,000 for construction. The cost of lands and damages is to be paid by local interests.

The existing project was authorized by the Flood Control Act approved December 22, 1944 (H. Doc. 888, 77th Cong., 2d sess.).

Local Cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended, applies. In addition to the usual requirements, local interests are required to accomplish at their own expense the street and bridge modifications necessary for the construction of the project. Formal assurance resolution has been received from the city of Colfax, and a bond issue for financing the project has been approved.

Operation and results during fiscal year. The specific design memorandum was completed and forwarded to office of the Chief Engineer for approval. Total cost for the fiscal year were $88,524.

Condition at end of fiscal year. The specific design memorandum is completed. No construction work has been done. Total costs have been $277,871.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	$40,000	—	$136,000	—	$28,300	$288,951¹
Cost	18,827	$14,184	19,516	$51,849	88,524	277,871¹
¹Includes $3,800 preauthorization studies.
Other new work data:
Unobligated balance, fiscal year ending June 30, 1960						$10,899
Appropriated for year ending June 30, 1961						425,000
Unobligated balances available for succeeding fiscal year ending June 30, 1961						435,899
Estimated additional amount needed to be appropriated for completion of existing project						2,976,049

20. MILL CREEK, WASH.

Location. Near Walla Walla, Wash., on Mill Creek, a tributary of the Walla Walla River.

Existing Project. The plan of improvement provides for construction of flood-control works consisting of a storage dam, outlet works, diversion works, division structures and improvement of a stretch of Mill Creek Channel, including the reconstruction of the Otis and Merriam Street Bridges across Mill Creek in the city of Walla Walla, Wash.

The storage dam, which will form a reservoir of 6,000 acre-feet capacity, is a rolled earth fill structure 145 feet high, 3,200 feet long at the crest, and 800 feet wide at the base. Flood water is diverted storage by means of diversion work on Mill Creek consisting of a rolled earth fill dam 1,700 feet long and 20 feet high, with a concrete spillway section and headworks at the left abutment, and a concrete-lined canal leading from the headworks to the storage reservoir. Stored water is subsequently released through outlet works consisting of a steel-lined concrete conduit through the base of the storage dam and a canal 5,900 feet in length from the dam to Mill creek. The normal flow of water past the diversion works is apportioned, by means of two concrete division structures, to the three delta streams, Yellowhawk, Garrison, and Mill Creek. The project will control the entire Mill Creek drainage area of 85 square miles and care for a flood of 11,400 second-feet. The existing project was authorized by the Flood Control Act approved June 28, 1938. The Flood Control Act approved August 18, 1941, modified the project in accordance with the recommendations of the Chief of Engineers in House Document 719, 76th Congress, 3d session. Cost of the completed project was $2,162,155. The average annual maintenance cost during the past 5 years, excluding $133,155 for rehabilitation of channel weirs and relocation of gaging station in fiscal year 1957, was $19,781.

Local Cooperation. For the project, except for Mill Creek through the city of Walla Walla, section 2 of the Flood Control Act approved June 28, 1938, applies. For the section of Mill Creek through the city of Walla Walla, Wash., local interests will provide without cost to the United States all lands, easements, and rights-of-way necessary for construction of the project, and hold and save the United States free from claims for damages resulting from improvement. Assurances of compliance with these requirements received from local interests were approved by the Division Engineer, March 2, 1948. Local interests have contributed $80,000 toward the cost of channel improvement through the city of Walla Walla.

Operations and results during fiscal year. Maintenance: Ordinary operations and maintenance were continued. Reservoir regulation and diversion of water for bed sealing was routine. Revision of the Reservoir Regulation Manual progressed. Thirty four thousand, five hundred persons visited the project during calendar year 1959. Total costs for the fiscal year were $23,484, all for maintenance.

Condition at end of fiscal year. Construction of the dam and appurtenant works was completed in 1942. An auxiliary outlet canal from the dam to Russell Creek and construction of additional drainage at the toe of the dam were completed in 1944. Paving of the channel through the city of Walla Walla was completed in 1948. Compaction of reservoir area, installation of seepage relief wells, grouting of interior drains, and installation of new sluice gate were completed in 1949 and 1950. Capping of 84 channel stabilizers with concrete, and relocation of the gaging station were completed in 1957. Diversion of water for bed sealing operations initiated in 1952 is being continued as conditions permit.

Total costs have been $2,162,155 was for new work and $646,368 for maintenance. In addition, costs for new work from contributed funds amounted to $80,000.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960¹
	1956	1957	1958	1959	1960	Total to June 30, 1960¹

New Work
Appropriated	—	—	—	—	—	$2,162,155
Cost	—	—	—	—	—	2,162,155
Maintenance
Appropriated	$134,750	$34,450	$18,900	$20,100	23,470	$646,450
Cost	19,630	149,778	18,828	20,341	23,484	646,368
¹In addition, $80,000 for new work was expended from contributed funds.

21. PENDLETON, UMATILLA RIVER, OREG.

Location. This project is located on the Umatilla River in and adjacent to the city of Pendleton, Oreg.

Existing Project. The plan of improvement provides for a levee system in the Riverside area upstream from the Pendleton city limits; improvement of the channel, and strengthening the existing levees through the city of Pendleton, and raising, rehabilitating, and extending existing levees in the State hospital area. The existing project was authorized by the Flood Control Act approved May 17, 1950 (Public Law 516, 81st Cong., 2d sess.). The costs of rights-of-way, utility relocations, and reconstruction of irrigation diversions are to be paid by local interests. The project will provide protection against a flood of 28,000 second-feet in the Umatilla River through and adjacent to Pendleton, Oreg.

Local Cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended, applies. In addition to the usual requirements, local interests are required to accomplish, at their own expense, any utility relocations and irrigation diversions necessary for the construction of the project.

Operations and results during fiscal year. Construction by contract was completed and the project turned over to the sponsor for maintenance. Total costs during the fiscal year were $110,658.

Condition at end of fiscal year. Construction started in January 1959, and was completed in November 1959. Total costs have been $276,848.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	$5,700	$25,000	$400,000	$75,000	—$43,852	$276,848¹
Cost	9,187	25,482	6,468	114,144	110,658	276,848
¹Adjustd in fiscal year 1960 report to reflect $200,000 transferred to other projects in fiscal year 1958.

22. UMATILLA RIVER, COLUMBIA RIVER BASIN, OREG.

Location. This project is located along Umatilla River in the vicinity of the town of Echo, Umatilla County, Oreg.

Existing Project. The project provides for channel rectification, construction of levees, and intermittent bank protection throughout a 5-mile reach between river miles 24.5 and 29.5 of Umatilla River.

The existing project was authorized by the Flood Control Act approved May 17, 1950 (Public Law 516, 81st Cong. 2d sess.) subject to economic justification. Economic justification has since been established and the project is now considered fully authorized.

The estimated cost revised in 1959 is $883,000. Costs of rights-of-way and relocations will be paid by local interests.

Local Cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended, applies. In addition to the usual requirements, local interests must accomplish at their own expense relocations of public utilities.

Operations and results during fiscal year. Negotiations with local interests on sponsorship were carried on. Total costs during fiscal year were $125.

Condition at end of fiscal year. Economic justification was established in 1955. The general design memorandum was completed during fiscal year 1959. No plans nor specifications have been initiated because of inability of local interests to fulfill their sponsorship requirements. The project has been reclassified to "Inactive" status until local interests agree to sponsorship requirements. Total costs have been $28,145.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

New Work
Appropriated	—	—	$16,000	$8,160	—$15	$28,145¹
Cost	—	—	14,899	9,121	125	28,145¹
¹Includes $4,000 preauthorization studies.
Other new work data:
Estimated additional amount needed to be appropriated for completion of existing project						854,855

23. OTHER AUTHORIZED FLOOD CONTROL PROJECTS

Name of project	For last full Report see Annual Report for—	Cost and expenditures to June 30, 1960		Estimated amount required to complete
Name of project	For last full Report see Annual Report for—	Construction	Operation and Maintenance	Estimated amount required to complete

Arlington, Alkali Canyon, Oreg.	1950	$20,112	—	⁽¹⁾
Blackfoot Area, Snake River, Columbia River Basin, Ida.	1958	42,796	—	⁽²⁾
Dayton, Touchet River, Washington	1953	20,364	—	$733,636²
Grande Ronde Valley, Columbia River Basin, Oreg.	1958	133,458	—	8,536,542⁽³⁾
Heise-Roberts Area, Snake River, Idaho	1955	1,575,838	—	⁽²⁾
Lewiston-Clarkston Levees	1950	—	—	⁽⁴⁾
Malheur Improvement Dist., Snake River, Oreg.	1957	55,894	—	⁽³⁾
Milton-Freewater, Walla Walla River, Oreg.	1956	886,956	—	⁽²⁾
Pendleton, Umatilla River, Oreg.	1939	143,263	—	(2)
Pilot Rock, Birch Creek, Oreg.	1949	7,800	—	321,120³
Portneuf River and Marsh Creek, Columbia River Basin, Idaho	1958	103,476	—	1,316,524³
Pullman, Palouse River, Washington	1953	53,067	—	1,956,933⁵
Shelley Area, Snake River, Columbia River Basin, Idaho	1958	32,335	—	⁽²⁾
(1) Protection to be provided in connection with John Day Lock and Dam, Columbia River, Wash. and Oreg. (2) Completed. (3) Awaiting local sponsorship. Last cost estimate revised in 1960. (4) Withdrawn as a local flood protection project. To be included as a feature of Lower Granite lock and dam, Snake River, Idaho and Wash.) (5) Deferred. Awaiting funds for further study. Last cost estimate revised in 1960.

24. INSPECTION OF COMPLETED FLOOD CONTROL WORKS

Upon completion of construction, projects authorized subject to specified conditions of local cooperation are transferred to responsible local interests for operation and maintenance in accordance with requirements of the authorizing legislation. Inspections are made to determine compliance of local interests with assurances given regarding operation and maintenance and the physical condition of the improvements. Local interests were advised, as necessary, of measures required to maintain these projects in accordance with the standards prescribed by the regulations. This report includes projects constructed under special continuing authorities, those authorized by Congress, and Public Law 685.

Operations and results during fiscal year.The number of projects inspected during the fiscal year in various river basins are summarized:

River Basins	Inspections	River Basins	Inspections

Blackfoot	1	Portneuf	1
Boise	53	Salmon	4
Grande Ronde	3	Snake	11
Clearwater	8	Touchet	2
Gros Ventre	2	Umatilla	1
Little Salmon	1	Walla Walla	2
Little Wood	4	Weiser	11
Owyhee	1	Yakima	1
Payette	15

Total costs during the fiscal year were $7,195.

Cost and Financial Summary
	Fiscal year ending June 30					Total to June 30, 1960
	1956	1957	1958	1959	1960	Total to June 30, 1960

Maintenance:
Appropriated	$3,000	$3,000	$6,200	$10,000	$7,250	$32,250
Cost	3,040	3,032	6,101	10,097	7,195	32,193

25. FLOOD CONTROL WORK UNDER SPECIAL AUTHORIZATION

Snagging and clearing of navigable streams and tributaries in the interests of flood control. (Sec. 208 of the 1954 Flood Control Act, Public Law 780, 83 Cong., 3 Sept. 1954.)

Project	Location	Date authorized	Date of construction start	Date completed	Federal cost

Lawyers Creek, trib. of Clearwater River	Kamiah, Idaho	Nov. 26, 1957	Jan. 1960	Apr. 1960	$35,383
South Fork, Boise River	Ballantine, Idaho	Oct. 29, 1958	Sep. 1959	Oct. 1959	5,544
McKay Creek, tributary of Umatilla River	Pendleton, Oreg.	June 26, 1958	⁽¹⁾	—	2,283
Grande Ronde River	Lange-Voelz, Oreg.	Oct. 22, 1957	Dec. 1959	Jan. 1960	8,886
¹Work delayed due to lack of local cooperation.

Emergency bank protection (sec. 14 of the 1946 Flood Control Act, Public Law 526, 79th Cong., July 24, 1946.

Project	Location	Date authorized	Date of construction start	Date completed	Federal cost

Big Canyon Creek	Peck, Idaho	Apr. 11, 1958	Sept. 1958	Nov. 1958	$2,311¹
South Fork, Boise River	Featherville, Idaho	Oct. 29, 1958	Sept. 1959	Oct. 1959	20,886
Wallowa River	Weaver Bridge Loc., Oreg.	Nov. 27, 1959	Dec. 1959	Jan. 1960	16,118
¹Note: Fiscal year 1960 expenditure in settlement of contractor's claim.

Small flood-control projects not specifically authorized by Congress (Sec. 212 of the 1950 Flood Control Act).

Project	Location	Date authorized	Date of construction start	Date completed	Federal cost

Cottonwood Creek	Boise, Idaho	Dec. 1, 1959	Not started	—	$11,257
Salmon River	Fife, Idaho	Jun. 13, 1960	do	—	880
Yakima River	W. Richland, Wash.	Oct. 1, 1957	do	—	398
Zintel Canyon, tributary of Columbia River	Kennewick, Wash.	Dec. 3, 1956	do	—	398
Walla Walla River, Wash.	Lower Dry Creek	Jul. 20, 1956	do	—	3,218
Umatilla River, Zone 2	Pendleton, Oreg.	Jul. 3, 1956	May 1960	—	39,834
Alkali Canyon	Arlington, Oreg.	Jul. 29, 1959	Not started	—	3,328
Beech Creek, tributary of John Day River	Mr. Vernon, Oreg.	Oct. 7, 1957	do	—	17
Greasewood Creek	Helix, Oreg.	Jul. 11, 1956	do	—	1,753

Emergency flood-control activities—Repair, flood fighting, and rescue work. (PL 99, 84th Cong., and antecedent legislation.)

Project	Location	Date authorized	Date of construction start	Date completed	Federal cost fiscal year 1960

Advance preparation	Walla Walla District	Continuing	—	—	$4,254
Investigations of potential emergency repair and restoration	do	do	—	—	1,493
Snake River, Jackson Hole Area	Morgan	June 18, 1959	Jun. 1959	Jul. 1959	11,096
Cottonwood Creek	Boise, Idaho	Post flood report	—	—	496
Yakima River	Bridge Acres	do	—	—	33

26. SCHEDULING OF FLOOD CONTROL OPERATIONS

Coordination of functional operation activities for Boise River Reservoirs was improved by conference of all interested parties or their representatives.

Studies were initiated and are continuing on the development of operation plan and forecast procedure for the Little Wood River Reservoir.

A Reservoir Regulation Manual for Federal Power Commission Project 1971 (Idaho Power Co.) was published in December 1959, and is being revised in accordance with suggestions and comments from North Pacific Division and Idaho Power Co.

The operation for flood control of Palisades, Arrowrock, Anderson Ranch, and Brownlee Reservoirs continued under existing criteria in coordination with the Bureau of Reclamation and other interests.

Total costs during the fiscal year were $7,931.

27. EXAMINATIONS AND SURVEYS

Total cost of work during the fiscal year for flood control studies was $133,470.

Work was completed on survey reports for Salmon River, Idaho; and Mission and Lapwai Creeks, Idaho.

Work was continued on survey reports on Upper Snake River, Oreg., Idaho and Wyoming; Mill Creek, Wash.; Touchet River and Tributaries, Wash.; and Walla Walla River, Wash.

A survey report for Esquatzel Coulee, Wash., was returned by the North Pacific Division for limited revisions which are in process. Resubmission of the report at an early date is anticipated.

Work was initiated on a survey report for Willow Creek at Heppner, Oreg.

Coordination activities were accomplished with the Bureau of Reclamation and Soil Conservation Service.

The anticipated allocation of $67,930 for fiscal year 1961 will be applied as follows: Continuation of the Upper Snake River survey, $14,920; Mill Creek, Wash., survey, $200; Willow Creek at Heppner, Oreg., survey $10,050; Touchet River and Tributaries, Wash., survey, $3,890; Grande Ronde River, Oreg., surveys, $25,710; Walla Walla River, Wash., survey, $12,670; Coordinated studies for the Bureau of Reclamation and soil Conservation Service, $490.

28. RESEARCH AND DEVELOPMENT

Hydrologic Studies. Investigations were continued to improve flood forecasting procedures. A study was initiated to develop a method of forecasting seasonal runoff volumes, utilizing an electronic digital computer. Other general hydrologic studies were conducted. Liaison with the University of Idaho was maintained with regard to developments in radio-telemetering of meteorological and hydrologic data. Total costs during the fiscal year were $4,253.

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