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APPENDIX T T.

IMPROVEMENT OF RIVERS AND HARBORS IN CALIFORNIA TRIBUTARY TO AND NORTH OF SAN FRANCISCO BAY, AND OF PEARL HARBOR, HAWAII.

REPORT OF COL. W. H. HEUER, CORPS OF ENGINEERS, OFFICER IN CHARGE, FOR THE FISCAL YEAR ENDING JUNE 30, 1904, WITH OTHER DOCUMENTS RELATING TO THE WORKS.

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13. Belvedere Harbor, San Francisco 14. Napa River, California, above Mare Bay, California.

KARBOR LINES.

Island Navy-Yard.

15. Easterly side of Mare Island Strait, at Vallejo, California.

UNITED STATES ENGINEER OFFICE, San Francisco, Cal., July 15, 1904. GENERAL: I have the honor to transmit herewith my annual reports of river and harbor works for the fiscal year ending June 30, 1904. Very respectfully, your obedient servant,

W. H. HEUER, Colonel, Corps of Engineers

Brig. Gen. A. MACKENZIE,

Chief of Engineers, U. S. A.

TTI.

IMPROVEMENT OF HARBOR AT ALVISO, CALIFORNIA.

A description of Alviso Slough and vicinity is printed in the Annual Report of the Chief of Engineers for 1891, page 2964.

With the exception of a resurvey made in April, 1904, in consequence of complaint from some parties interested in the improvement of the slough, no work has been done in the last fiscal year.

As neither commerce nor navigation has increased (in fact both have decreased) on this slough since the completion of the improvement, and as the channel obtained seems sufficient for existing commerce, I consider Alviso Harbor and Slough at present unworthy of further improvement.

As there is, however, $30,000 from unexpended balance and from collection of surety bond available for the improvement, which might be used for maintenance, and as Congress by act of June 13, 1902, made this unexpended balance available for extension and further improvement of the channel heretofore made, and as the people interested in the improvement have again been clamoring for the further improvement and expenditure of the money, it was deemed best to comply with the Congressional enactment to deepen and widen the existing channel.

Specifications for doing the work by contract are being prepared.

Money statement.

July 1, 1903, balance unexpended.

June 30, 1904, amount expended during fiscal year, for works of improve

ment

July 1, 1904, balance unexpended ....

APPROPRIATIONS.

March 3, 1899

Received from surety of failing contractor..

Total

COMMERCIAL STATISTICS.

a $30, 312. 28

261. 15

30, 051. 13

$48,000

10,000

58,000

No statistics of commerce on Alviso Slough during the year 1903 could be obtained. The small steamer which formerly ran on the slough was taken off on January 4, 1903, and has not been run since, as there was not business to pay expenses. It is reported that one or two small schooners went into the slough during the year with cargoes of lumber and bark, but no record of their size or the amount of their cargoes could be obtained.

a This item is greater than last year by $10,000 received from surety on bond of failing contractor.

TT 2.

IMPROVEMENT OF REDWOOD CREEK, CALIFORNIA.

The work for which Congress by act of June 13, 1902, appropriated $8,400 for the improvement of this creek was placed under contract in 1903 and completed on July 15 of that year. It resulted in a good channel across the middle ground, fully 5 feet below low-water level and 100 feet least width, as well as the completion of the dredging in front of the city wharf. The total volume of the material dredged was 72,154 cubic yards. The contract price for dredging was 11 cents per cubic yard, place measurement. It is reported by the tannery company that the dredged channel has again shoaled. No survey has been made since immediately after the completion of the work. As there is no tidal basin above the channel it can not be expected to be self-maintaining, but is at present sufficient for all the existing requirements of commerce.

No further appropriation in the near future for this work is believed to be necessary.

Money statement.

July 1, 1903, balance unexpended

June 30, 1904, amount expended during fiscal year, for works of improve

ment.

July 1, 1904, balance unexpended

$6,854. 44

6, 497. 10

357.34

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Contract dated May 5, 1903, for dredging in Redwood Creek, California.

Rate: 11 cents per cubic yard. Total cost, $8,042.66.

Name of contractor: Willis G. Witter.

Date of approval: June 2, 1903.

Work commenced: May 20, 1903.

Work completed: July 15, 1903.

$3,000

5,000

7,400

8,000

8,400

31, 800

COMMERCIAL STATISTICS.

The commerce of Redwood Creek is carried on small scow schooners, which run regularly into the creek, and two small steamers, which make occasional trips. Steam schooners also at times take a cargo into Redwood Creek. The following is a statement of the business done in 1903, as furnished by the shippers:

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Tons.

1,300 11,372

1, 118 7,500

21, 290

TT 3.

IMPROVEMENT OF HARBOR AT SAN FRANCISCO, CALIFORNIA.

The work in this harbor contemplated the removal of Arch rock, the two Shag rocks, and Blossom rock, all to the depth of 30 feet below the level of the lower low tides. The work was placed under continuing contract in 1899 for Arch and Shag rocks and was completed in April, 1903. Contract for the removal of Blossom rock was made in November, 1902, and completed on December 28, 1903. This rock was removed by surface blasting and then dredging the broken rock into deep water alongside, at a cost of $49,228.64. The total cost of removing all the rocks to a depth of 30 feet was $316,529.68. As all the work for which appropriations were made and authorized has been completed, no further appropriations are necessary.

Assistant Engineer H. L. Demeritt was in charge of the work and rendered excellent service.

Acknowledgment is made to Capt. A. F. Rodgers, U. S. Coast and Geodetic Survey, for copies of tide-gauge readings while work was in progress.

Money statement.

July 1, 1903, balance unexpended.

June 30, 1904, amount expended during fiscal year, for works of improve

ment

July 1, 1904, balance unexpended

$52, 230. 01

48, 759.69

3,470.32

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Contract dated November 14, 1902, for removing Blossom Rock, San Francisco Bay, California, for $45,142.

Name of contractor: Robert Wakefield.
Date of approval: November 26, 1902.
Work commenced: May 17, 1903.
Work completed: December 28, 1903.

COMMERCIAL STATISTICS.

The tonnage of the vessels entered and cleared at the port of San Francisco during the calendar year 1903 was reported by the secretary of the San Francisco Merchants Exchange as 3,367,646 tons. The number of vessels entered during that period was 1,036, and the number cleared was 1,414. This only includes commercial vessels, and not the large number of United States and foreign government vessels which visit this port. There are also a number of large ferry boats which ply between San Francisco and other points on the bay, and carry much freight and enormous numbers of passengers. There is also a large fleet of small steam and sail boats carrying freight to the various landings on and adjacent to the bay.

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