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( These acts provided for cutting off sharp bends Aug. 14, 1876 and making cut-offs in San Joaquin River below Mar. 3, 1881 the mouth of Stockton Channel; dredging MorJuly 5, 1884 mon Channel; snagging, removing obstructions, Aug. 11, 1888 and constructing wing dams in San Joaquin July 13, 1892 River from Stockton Channel to Hills Ferry, Aug. 18, 1894 and the partial closing of side channels at Laird June 3, 1896 Slough and Paradise Cut, without adopting any
specific dimensions. June 25, 1910 A 9-foot channel up to Stockton
H. Doc. No. 1124, 60th Cong., 2d sess. July 25, 1912 Improvement of Fremont Channel and McLeod H. Doc. No. 581, 62d Cong., 2d sess.
Lake, at Stockton.
H. Dọc. No. 554, 68th Cong., 2d sess. Aug. 30, 1935? The original 30-foot channel up to Stockton. Senate Committee Print, 73d Cong.,
1st sess. Aug. 26, 1937 The widened 30-foot channel up to Stockton ... Rivers and Harbors Committee Doc.
No. 15, 75th Cong., ist sess.'
1 Contains latest published maps.
Local cooperation.—Local interests are required to furnish, free of cost to the United States, suitable areas for the disposal of dredged material during initial construction and future maintenance, and necessary rights-of-way, and shall assume the maintenance of levees. All requirements for work done to date have been fulfilled.
Terminal facilities. There are a number of privately owned river freight warehouses along the river and in the delta region. Freight is handled on the bank, except at and below Antioch, where extensive wharves and warehouses exist. The city of Stockton port terminal has 3,400 linear feet of public wharves served by 32 miles of public belt railroad. All except two oil terminal piers and a 508-foot wharf have transit sheds. In addition to privately operated grain and lumber terminals, a cotton compress and warehouse, a bean-cleaning plant, oil refinery, and storage tanks, a large storage tank for crude molasses, and bank of silos for cement storage, there are numerous publicly and privately owned shallow-draft wharves at Stockton. Certain facilities at the Stockton port terminal are in use for military purposes. A naval supply depot (Stockton Annex), about 50 percent complete, is under construction on Rough and Ready Island, bounded by the Stockton Deep Water Channel on the north side, San Joaquin River on the east side, and Burns Cut-off on the south and west sides. In New York Slough there are 13 wharves, including 1 for deep-sea vessels. One wharf has a spur track and 2 have oil pipe lines. The facilities are considered adequate for existing commerce.
Operations and results during fiscal year—New work.—None.
Maintenance.—The 30-foot channel to Stockton was partially restored to project dimensions at the confluence of the main river and Stockton Channel and vicinity by the excavation of 188,000 cubic yards by the pipe line dredge Alamitos under rental contract, at a cost of $12,865.48, including surveys and inspections.
Total cost for the fiscal year was $12,865.48, for maintenance; total expenditures were $7,533.47.
Condition at end of fiscal year.-The existing project was 95 percent complete, the work remaining to be done being the dredging of a 9-foot channel in Mormon Channel to Center Street, Stockton; completion of restoration of levee on north side of Venice Island Cut; and setting back of levees and bringing levees to grade and section where needed. The controlling depth from mouth of the river in Suisun Bay to Mormon Channel, 41 miles, is 29 feet (30-foot depth is being restored); thence to Edison Street, three-quarters of a mile, 22 feet; and thence to head at El Dorado Street, one-half mile, 10 feet. A 3-foot depth is available in Mormon Channel and 7 feet in Fremont Channel and McLeod Lake.
The river, from its junction with Stockton Channel to Hills Ferry, usually has a controlling depth of 4 feet from April to June, inclusive. Navigation in this section above the San Joaquin bridge (Southern Pacific R. R. crossing) is impracticable in the low stages after June. All depths are referred to mean lower low water.
The costs have been as follows:
The total expenditures were $5,524,531.90, including $1,158,347.99 from Public Works funds, of which $207,197.64 was for the 30-foot channel in Suisun Bay. In addition, $1,307,500 was expended from contributed funds for new work and $1,250 for maintenance.
Proposed operations. The balance unexpended June 30, 1945, amounting to $143,170.39, and an additional allotment to be made will be applied as follows: Accounts payable
$6, 157. 73
Dredging 9-foot channel in Stockton Channel, above Edison
St., in Mormon and Fremont Channels and McLeod Lake,
Joaquin River below the mouth of Stockton Channel, total
preparation of spoil areas), July 1945
mouth of river to Mile 23 by Government hopper dredge
under additional allotment)
by hired labor and Government plant, August 1945
3,000.00 Surveys and miscellaneous inspection and maintenance, July to December 1945
$5,012. 66 Total for maintenance
152, 112. 66 Total application of funds
158, 270. 39 The additional sum of $261,000 can be profitably expended during the fiscal year 1947, as follows: New work: Dredging Mormon Channel from its mouth to Center
Street, Stockton, to a depth of 9 feet, by pipe-line dredge and other excavating plant, by contract, April to June 1947
$150,000 Maintenance: Dredging 9-foot channel in Stockton Channel, above Edison
Street, Stockton, in Mormon and Fremont Channels, and
$5,000 Dredging 30-foot channel in Stockton Channel and in San
Joaquin River below the mouth of Stockton Channel, total
84, 000 Dredging various shoals in 30-foot channel to Stockton by Government hopper dredge, October and November 1946--
12, 000 Snagging in main river, above and below Stockton Channel, by hired labor and Government plant, after freshets.
5,000 Resurveys and miscellaneous inspection and maintenance, during fiscal year
5, 000 Total for maintenance
111, 000 Grand total
261, 000 Cost and financial summary Cost of new work to June 30, 1945
$3, 860, 904. 80 Cost of maintenance to June 30, 1945
1, 669, 784.83 Total cost of permanent work to June 30, 1945
15, 530, 689. 63 Minus accounts payable June 30, 1945
6, 157. 73 Net total expenditures
*5, 524, 531.90 L'nexpended balance June 30, 1945
143, 170. 39 Total amount appropriated to June 30, 1945
* 5, 667, 702. 29
Outstanding liabilities June 30, 1945
$6, 847. 73
$47, 107. 73
Balance available June 30, 1945
96, 062. 66
Amount (estimated) required to be appropriated for comple
tion of existing project
For new work ?
150,000.00 111, 000.00
i In addition $1,307,500 for new work and $1,250 for maintenance were expended from contributed funds.
? Exclusive of available funds.
2. STOCKTON AND MORMON CHANNELS (DIVERTING CANAL),
Location.—This is an artificial cut located about 2 miles northeast of Stockton. (See U. S. Geological Survey sheet, Stockton quadrangle.)
Existing project. This provides for diverting the waters of Mormon slough before reaching Mormon and Stockton Channels by means of a dam in the slough 3 miles east of Stockton, and a canal 150 feet wide, with average cut of 7.9 feet, thence to the north branch of the Calaveras River, 4.63 miles; by the enlargment of the cross section of this branch to 1,550 square feet, thence to its mouth at the San Joaquin River, 5 miles; and by the construction of a levee along the west side of the canal and the south side of the north branch of the Calaveras River from the material excavated. The height of the levee is limited by necessary railway and highway crossings to about 3 feet above the contemplated flood surface. The canal is empty during the greater part of the year, but at times of extreme flood there is a depth of about 12 feet, and at ordinary flood a depth of about 10 feet.
The estimate of cost for new work, revised in 1906, was $280,395. The latest (1918) approved estimate for annual cost of maintenance is $5,000.
The existing project was authorized by the River and Harbor Act of June 13, 1902 (H. Doc. No. 152, 55th Cong., 3d sess., and Annual Report for 1899, p. 3188). The latest published map is in House Document No. 256, Sixty-third Congress, first session.
Local cooperation.-Fully complied with.
Operations and results during fiscal year.–Clearing brush from the channel was done at a cost and expenditure of $3,016.30, including inspections, for maintenance.
Condition at end of fiscal year.—The existing project was completed in 1910. Most of the silt formerly deposited in Stockton and Mormon Channels is diverted therefrom by this canal, obviating serious inconveniences to navigation and the expensive annual dredging.
The total cost was $362,530.41, of which $253,151.03 was for new work and $109,379.38 for maintenance. Total expenditures were $362,530.41.
Proposed operations.—The balance unexpended June 30, 1945, amounting to $8,660.47, will be applied to maintenance, including removal of brush, overhanging trees, and other obstructions from the channels and banks of both sections of the diverting canal, by contract, from July to December 1945, along with miscellaneous inspections.
The additional sum of $5,000 can be profitably expended during the fiscal year 1947 for maintenance, as follows: Removal of brush, overhanging trees, and other obstructions from the channel and banks of both sections of the diverting canal, by hired labor and Government plant, July to September 1946
$2,500 Dredging deposits of silt from the Calaveras section of the diverting canal, by contract, December 1946
2, 000 Miscellaneous inspections, during entire fiscal year
Total for maintenance
Cost and financial summary
$253, 151. 03 109, 379.38
362, 530. 41
Total cost of permanent work to June 30, 1945
Total amount appropriated to June 30, 1945
362, 530. 41
Balance unexpended June 30, 1945
June 30, 1947, for maintenance
1 Exclusive of available funds.
3. MOKELUMNE RIVER, CALIF. Location. This river rises near the crest of the Sierra Nevada and empties into the San Joaquin River 20 miles above the mouth of the latter. (See U. S. Geological Survey topographic map of the Sacramento Valley, Calif.)