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Existing project.This provides for the removal of snags and obstructions and occasional dredging of shoals from the mouth of the river to Galt-New Hope Bridge, a distance of 35 miles, including both forks. The mean lower low-water depths considered sufficient for needs of navigation are as follows:

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Mouth of river to lower junction North and South Forks.
Lower junction North and South Forks to Snodgrass Slough via North Fork.
Snodgrass Slough to upper junction North and South Forks via North Fork
Lower junction North and South Forks to upper junction of same at New Hope

Landing via South Fork
New Hope Landing to Galt-New Hope Bridge.

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At low-river stages the range between mean lower low water and mean higher high water at the mouth is 4 feet, with extreme tidal range of 5 feet; there is no tide at the upper end, just above Galt-New Hope Bridge. Ordinarily flood fluctuation is 5.5 feet at the mouth and 12 feet at the upper end. Extreme flood fluctuation is 8 feet at the mouth and 17 feet at the upper end.

The esimate of cost for new work, made in 1881, was $8,250. The latest (1930) approved estimate for annual cost of maintenance is $2,000.

The existing project was adopted by the River and Harbor Act of July 5, 1884, Senate Executive Document No. 34, Forty-seventh Congress, first session (Annual Report for 1882, p. 2637). For latest published map see House Document No. 1160, Sixty-third Congress, second session.

Terminal facilities.—The Western Pacific Railroad has warehouses at terminus, on Potato Slough; otherwise commodities are handled on small wharves or landings or on the banks at various points. The facilities are considered adequate for existing commerce.

Operations and results during fiscal year.-None.

Condition at end of fiscal year.—The existing project was completed in 1885. Controlling depths are as shown in the table under existing project, except in the first section, where 12 feet is the controlling depth; in the third section, where 2 feet is the controlling depth; and in the fourth section, where 8 feet is the controlling depth. The channel is reasonably free of obstructions to the head of navigation, except for a few that usually develop at low-water stages in the fall. The total cost and expenditures were $74,037.01, of which $8,500 was for new work and $65,537.01 for maintenance.

Proposed operations.—No operations are proposed for the fiscal year 1946.

The additional sum of $5,000 can be profitably expended during the fiscal year 1947 for maintenance, as follows: Dredging sand bars and shoals by contract, from mouth to New Hope

Landing, July or August 1946
Removing snags, overhanging trees, and other obstructions, by hired

$3,500 $8,500.00 65,537.01

labor and Government plant, September 1946

1,500

Total for maintenance

5,000

Cost and financial summary
Cost of new work to June 30, 1945.
Cost of maintenance to June 30, 1945--

Total cost of permanent work to June 30, 1945-
Net total expenditures-
Total amount appropriated to June 30, 1945-

74, 037.01 74, 037.01 74, 037. 01

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Amount that can be profitably expended in fiscal year ending
June 30, 1947 for maintenance ?

$5,000.00 * Exclusive of available funds.

4. SACRAMENTO RIVER, CALIF. Location. This river is formed by numerous streams draining the Trinity and Warner Mountains in northern California and empties into Suisun Bay at Collinsville. (See U. S. Geological Survey topographic map of the Sacramento Valley, Calif.)

Previous projects.Adopted by the River and Harbor Acts of March 3, 1875, August 2, 1882, December 21, 1889, July 13, 1892, and August 18, 1894. For further details see page 1985, Annual Report for 1915, and page 1708, Annual Report for 1938.

Existing project.This provides for a channel 10 feet deep at mean lower low water and 150 to 200 feet wide from the mouth of the river to Sacramento, 59 miles; thence 6 feet deep at low water to Colusa, 85 miles; thence 5 feet deep at low water to Chico landing, 49 miles; and such depths as practicable thence to Red Bluff, 53 miles. Below Sacramento the results are to be obtained by means of wing dams, supplemented by dredging. Above Sacramento the results are to be obtained by removal of snags and concentration of the channel by temporary works, and stream-flow regulation by the Shasta Reservoir upon its completion.

The following table shows the tidal and flood conditions prevailing:

Sacramento River

Range in feet

Place

Miles

from mouth

of river

Mean tidal 1

Extreme Ordinary Extreme

tidal flood flood

5. 8 ; 2.0

7.0

Collinsville
Sacramento
Verona (mouth of Feather River)
Colusa
Chico Landing
Red Bluft.

9.9 30.0 24.0 32. O 25.0 29.0

3.0 Trace

0 59.0 80.0 144.0 193.0 246.0

8 20 20 25 20 24

1 Mean lower low water to mean higher high water. 3 Tide at low-water season only.

The estimate of cost for new work, revised in 1935, is $588,000 exclusive of amounts expended on previous projects on the Sacramento River below Sacramento. The latest (1935) approved estimate for annual cost of maintenance is $215,000.

The existing project was authorized by the following river and harbor acts:

Acts

Work authorized

Documents

Mar. 3, 1899

A depth of 7 feet below Sacramento..

July 25, 1912
Jan. 21, 1927
Aug. 30, 1935

H. Docs. Nos. 186, 55th Cong., 2d sed,

and 48, 55th Cong., 3d sess. (AR,

1898, p. 2944, and 1899, p. 3171).
H. Doc. No. 76, 62d Cong., Ist sess?
H. Doc. No. 123, 69th Cong., ist xess.
Rivers and Harbors Committee Duc.

No. 35, 73d Cong., 2d sess.

For work above Sacramento
The 10-foot channel up to Sacramento
A depth of 6 feet between Sacramento and Colusa

and 5 feet between Colusa and Chico Landing,
at a cost of $390,000, provided the flow of the
river is increased to the minimum flow of 5,000
cubic feet per second after Shasta Reservoir is

built.
Authority for a special direct participation of the

Federal Government of $12,000,000 in the cost

of Shasta Reservoir.
Transfer of authority for expenditure of the above

$12,000,000 from the Secretary of War to the
Secretary of the Interior.

Do

Rivers and Harbors Committee Doc

No. 35, 73d Cong., 2d sess.

Aug. 26, 1937

For map

1 This document contains latest published map of the section above Sacramento. of the section below Sacramento, see H. Doc. No. 1123, 60th Cong., 2d sess.

Recommended modifications of project.In House Document No. 1893, Sixty-fourth Congress, second session, it was recommended that Chico Landing, 52.4 miles downstream from Red Bluff, be made the head of the improvement.

Terminal facilities.—At Sacramento there are 4,810 linear feet of wharves, of which 1,850 linear feet are owned by the city and 420 linear feet are open to general public use. There are 245,700 square feet of warehouse space, of which 103,700 square feet are owned by the city and 21,000 square feet are open to general public use.

On the west bank, opposite Sacramento, are 4 wharves of a total length of 350 feet, with 108,560 square feet of warehouse space, all privately owned and used. Between Sacramento and Chico Landing there are 47 warehouses and numerous small landings. Freight is also handled on the bank. Between Sacramento and the mouth of the river there are, in addition to 1,440 linear feet of wharf with warehouse facilities at Rio Vista, 19 large wharves, about 38 large warehouses, and many small warehouses and landings. all owned and operated by private interests. The facilities are considered adequate for existing commerce.

Operations and results during fiscal year.-Above Sacramento: Snagging and clearing of brush were done by hired labor, from Colusa to points 20 miles upstream and 54 miles downstream, at a cost of $45,304.27. Repairs to wing dams were made between the mouth of Feather River and a point 5 miles downstream, at a cost of $11,497.17.

At and below Sacramento: A pipe-line dredge under hourly basis contract removed 330,000 cubic yards from the river between Y Street, Sacramento, and the mouth of American River, at a cost of $92,906.54. Special work on spoil areas, including rebuilding roads covered by dredge spoil, and grading, cost $1,511.06. Pipe-line dredging plant, under contract for its hire and operation, removed 21,551 cubic yards from the main channel 46 miles below Sacramento, at a cost of $4,529.66. Eight large snags were removed from the channel, at a cost of $1,018.86. Miscellaneous surveys of the river cost $4,896.70. Total cost for both sections was $161,664.26 for maintenance; total expenditures were $170,555.

Condition at end of fiscal year. The 10-foot channel below Sacramento was completed in 1931; the entire project is 33 percent complete. The work remaining to be done to complete the project is the provision of a 6-foot depth between Sacramento and Colusa and 5-foot depth thence to Chico Landing, provided a continuous river flow of 5,000 second-feet is made available by operation of the Shasta Dam and Reservoir. The controlling low-water depths were as follows: From the mouth of the river to the mouth of Cache Slough, 20 feet; thence to Sacramento, 10 feet; thence to Colusa, 4 feet; thence to Butte City, 3 feet; and thence to Sidds Landing, 3 feet. There is no regular navigation above Sidds Landing, 178 miles above the mouth, and no maintenance work has been done above this point since 1921.

The total cost under the existing project was $4,435,910.58, of which $196,616.74 was for new work and $4,239,293.84 for maintenance. Total expenditures were $4,432,657.75.

Proposed operations. The balance unexpended June 30, 1945, amounting to $254,412.27, will be expended as follows: Accounts payable

$3, 252.83 Maintenance:

Dredging at Sacramento by contract pipe-line dredge, July

to September 1945, including spoil area work and acquisi-
tion of lands and rights-of-way--

112, 050.00 Dredging below Sacramento by contract, August and September 1945

10,000.00 Snagging below Sacramento by hired labor and Government plant, September and October 1945.

10,000.00 Maintenance of wing-dam system at and below Sacramento

by hired labor and Government plant, September and
October 1945

15, 000.00 Dredging at Brytes Bend, Mile 62.5 by contract, September 1945

20,000.00 Dredging just above Sacramento Weir, Mile 64, by contract, September and October 1945..

24,000.00 Snagging above Sacramento by hired labor and Government plant, July to December 1945

35, 000.00 Maintenance of wing-dam system above Sacramento by hired

labor and Government plant, August to October 1945.- 12, 000.00 Miscellaneous surveys, above and below Sacramento, July to October 1945

7, 659. 44 Additional snagging above and below Sacramento, and miscellaneous surveys, January to June 1946_

5, 450.00 Total for maintenance.

251, 159. 44

254, 412. 27

Total application of funds.672607-46—pt. 1, vol. 2-55

The additional sum of $605,000 can be profitably expended during the fiscal year 1947, as follows: New work (to provide the 6-foot channel from Sacramento to

Colusa, and 5-foot channel thence to Chico Landing, upon com-
pletion of Shasta Dam and Reservoir):
Construction of contraction works (between Butte City and
Chico Landing), July to December 1946.-

$360,000 Dredging various shoals, between Colusa and Chico Landing,

by dredging plant under contract for its hire and operation,
August to October 1946----

30,000 Total, for new work_

390,000

120,000 15, 000

10,000

Maintenance:

Dredging at Sacramento by contract, July to October 1946,

including spoil area work and land acquisition---
Dredging below Sacramento by contract, August 1946-
Snagging below Sacramento by hired labor and Government

plant, December 1946_-
Maintenance of wing-dam system at and below Sacramento,

by hired labor and Government plant, July to November

1946
Dredging above Sacramento by contract, August 1946_-
Snagging_above Sacramento, by hired labor and Government

plant, July to October 1946___
Maintenance of wing-dam system above Sacramento, by hired

labor and Government plant, July to November 1946------
Miscellaneous surveys, above and below Sacramento, July to

December 1946

15,000 15, 000

20,000

15,000

5,000

Total (for maintenance)-

215, 000

Grand total

605, 000

Cost and financial summary
Cost of new work to June 30, 1945
Cost of maintenance to June 30, 1945

Total cost of permanent work to June 30, 1945
Minus accounts payable June 30, 1945

Net total expenditures Unexpended balance June 30, 1945

Total amount appropriated to June 30, 1945

$381, 814. 93 4, 793, 013. 79 5, 174, 828. 72

3, 252. 83

5, 171, 575. 89

254, 412. 27

5, 425, 988.16

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$57, 417. 27

Balance unexpended July 1, 1944
Amount allotted from War Department Civil

Appropriation Act approved June 26, 1944-- $173, 000.00
Amount allotted from War Department Civil

Appropriation Act approved Mar. 31, 1945.- 194, 550.00

367, 550.00

Amount to be accounted for

424, 967.27

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