CONTRACTS IN FORCE. CONTRACT FOR DREDGING ON OUTER BAR. Name of contractor: California Reclamation Company. Contract entered into July 6, 1909; approved July 31, 1909. Work to begin October 4, 1909; contract to be completed August 7, 1910. Work was completed January 17, 1910. One hundred thousand nine hundred and four cubic yards of material was dredged, at $0.2874 per yard. COMMERCIAL STATISTICS. [Furnished by the collector of customs at San Diego, Cal.] DEEP-WATER HARBOR AT SAN PEDRO BAY, CALIFORNIA. The construction of the breakwater was continued during the year, under continuing contract dated June 7, 1900, with the California Construction Company, of San Francisco, Cal. At the beginning of the fiscal year 2,204,909 tons of stone had been deposited in the substructure, which had been raised to mean lower low water and was about completed for the length of 9,174 feet from its westerly end, and 222,038 tons had been placed in the superstructure. The amount of superstructure work done was the equivalent of 8,458 feet of completed wall. During the fiscal year ending June 30, 1910, 25,993 tons of granite was placed in the substructure, at a cost of $0.844 per ton, and 7,233 tons of granite in the superstructure, at a cost of $3.10 per ton, and 1,034 tons of granite was placed as a berm at the toe of the ocean slope of the superstructure, at a cost of $2 per ton. A concrete block 40 feet square and 20 feet high, beginning 3 feet below low water, was built at the outer end of the breakwater, at a cost of $6,930. The stubstructure was completed. The superstructure was about 99 per cent completed. Further work is provided for under appropriation for improving Los Angeles Harbor. Name of contactor: California Construction Company. Contract entered into June 7, 1900; approved June 27, 1900. Work to begin August 4, 1900; contract to be completed March 31, 1907. Total consideration of contract (approximate), $2,648,046.05. SUPPLEMENTAL CONTRACT. Name of contactor: California Construction Company. Contract entered into November 24, 1909; approved June 11, 1910. Provides for the extension of the stone superstructure to the westerly end of the breakwater in lieu of the construction of concrete block. COMMERCIAL STATISTICS FOR YEAR ENDING DECEMBER 31, 1909. For commercial statistics, see report of Wilmington Harbor, California. RR 3. IMPROVEMENT OF WILMINGTON HARBOR, CALIFORNIA. Dredging with government dredge.-The dredge San Pedro was employed during most of the year in dredging in the turning basin. This work was completed June 25, 1910, when the dredge was moved to the Crescent wharf, and dredged out a lump which had caved from the side slope under the wharf. On June 27 the dredge was moved to a point in the entrance channel near Deadmans Island, where it was in operation at the close of the fiscal year. All dredging was carried to a depth of 25.5 feet below mean lower low water. A total of 885,298 cubic yards was dredged from 7,051 linear feet of cut approximately 200 feet wide, and varying from 5 to 29 feet in depth. This material was wasted as follows: Cubic yards. Pumped 995 to 2,383 feet and wasted on Smiths Island and tide lands Pumped 1.830 to 2,556 feet and wasted on San Pedro, Los Angeles and Salt Total---- 557, 141 50,000 264, 880 2, 166 11, 111 885, 298 The material removed from the turning basin consisted of quicksand, hardpan, shell, and blue clay; the hardpan, principally on the east side, was 5 to 7 feet thick, and in the bottom cut. A large percentage of disintegrated shell was found all over the basin and was particularly hard to handle, as it persistently clogged the discharge pipe. The material encountered near Deadmans Island was quicksand, some shell, and a large percentage of bowlders from 5 to 100 pounds in weight. The following statement shows the distribution of time for the dredge during the year: The following statement shows the cost of dredging during the year: Superintendence and office work Care of plant, labor.. Surveys, labor__. Towage and dispatch work, labor, supplies, and hire of launch_. Alterations and repairs to dredge and attendant plant, labor, and supplies $2, 704. 79 1,080.00 184.00 1,090. 94 6, 893. 50 46, 649. 02 10, 757. 77 69,360. 02 --cubic yards. 885, 298 $0.078 Operating dredge, superintendence, labor charges, fuel, fresh water, Deterioration of plant and property during fiscal year__ Total cost of dredging.. Amount of material removed_ Cost per cubic yard....... Considering the actual pumping time for the entire year the solids amounted to about 4.7 per cent of the total flow through the discharge pipe. Miscellaneous work. During the year 747 hours were spent in making repairs to dredge incident to the work. The principal items were as follows: The "A" frame was renewed; reenforce pieces were bolted on gallows frame over pilot house, where dry rot had set in. Twice during the year the boilers were cleaned and overhauled and fire walls renewed; the main engine was overhauled and the main pump completely relined; the runners for main pump and cutter cages were repaired; cylinders of cutter engine were rebored and new packing rings put in; the hot well was renewed, as the old one was leaky and beyond repair; all auxiliary machinery and steam pipes were thoroughly overhauled; the ladder was scraped, painted, and a crack in one of the side "I" bars repaired; the suction pipe in hold was replaced and that on the ladder turned; the discharge pipe in the hold was turned, a new discharge throat piece put in at main pump, and a new riser and tailpiece at stern of dredge; one spud, badly worn and cracked, was replaced. All of these repairs were made at a cost of $6,893.50, and, with the exception of a small amount of boiler work, were performed by the dredge crew, with the aid of the machine shop aboard the dredge. The launch Pedrito was overhauled and repaired at a cost of $54.81. Further work on this harbor has been provided for by appropriation under the name of Los Angeles Harbor. Name of contractor: H. S. Botsford. Contract entered into July 6, 1909; approved August 11, 1909. Deliveries to begin July 1, 1909. Contract completed June 30, 1910. Twenty thousand barrels of oil for fuel for dredge, at $1 per barrel. Registered: Total. COMMERCIAL STATISTICS. [Furnished by the collector of customs at Los Angeles, Cal.] Merchandise, general. Iron and steel. Cabinet wood in logs. Crude oil.. Lumber...... Total.. IMPROVEMENT OF LOS ANGELES HARBOR, CALIFORNIA. For work done during the year see reports on deep-water harbor at San Pedro Bay, California, and improvement of Wilmington. Harbor, California. Those two harbors now being within the limits of the city of Los Angeles by the consolidation of the cities of San Pedro, Wilmington, and Los Angeles, appropriations for their improvement were made in the river and harbor act of June 25, 1910, under the name of Los Angeles Harbor. Estimate of additional funds required. Amount required for expenditure in fiscal year ending June 30, 1912, Submitted in compliance with requirements of sundry civil act of @ $316, 800 June 25, 1910__. APPROPRIATIONS. CONTRACTS IN FORCE. $578,000 See reports for deep-water harbor at San Pedro Bay, California, and improvement of Wilmington Harbor, California. • Exclusive of the balance unexpended July 1, 1910. |