APPENDIX R R. IMPROVEMENTS OF RIVERS AND HARBORS IN THE LOS ANGELES, CALIFORNIA, DISTRICT. REPORT OF CAPT. AMOS A. FRIES, CORPS OF ENGINEERS, OFFICER IN CHARGE, FOR THE FISCAL YEAR ENDING JUNE 30, 1909. 1. San Diego Harbor, California. IMPROVEMENTS. 3. Wilmington Harbor, California. 2. Deep-water harbor at San Pedro Bay, 4. San Luis Obispo Harbor, California. California. UNITED STATES ENGINEER OFFICE, SIR: I have the honor to forward herewith annual report on works of river and harbor improvement in my charge for the fiscal year ending June 30, 1909. Very respectfully, your obedient servant, AMOS A. FRIES, Captain, Corps of Engineers. The CHIEF OF ENGINEERS, U. S. ARMY. RR 1. IMPROVEMENT OF SAN DIEGO HARBOR, CALIFORNIA. No work was done during the year. On June 4, 1909, bids were opened for deepening by dredging the channel through the outer bar under an allotment of $30,000 from appropriation made by river and harbor act of March 3, 1909. Authority has been received to enter into contract with the California Reclamation Company for dredging 100,904 cubic yards at $0.2874 per cubic yard. Estimate of additional funds required. Amount that can be profitably expended in fiscal year ending June 30, 1911, for maintenance of improvement, exclusive of the balance unexpended July 1, 1909.... Submitted in compliance with requirements of sundry civil act of June 4, 1897, and of section 7 of the river and harbor act of 1899. 9001-ENG 1909-137 $30,000 2177 COMMERCIAL STATISTICS FOR THE YEAR ENDING DECEMBER 31, 1908. Total amount of freight entered and cleared in 1908, 250,866 b tons, a decrease of 3 per cent from the preceding year. R R 2. 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 2,036,756 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 8,607 feet from its westerly end, and 207,766 tons had been placed in the superstructure. The amount of superstructure work done was the equivalent of 8,070 feet of completed wall. During the fiscal year ending June 30, 1909, 168,153 tons of granite was placed in the substructure, and 14,272 tons of granite in the a House Document No. 421, Fifty-seventh Congress, second session. In this report the estimated weight of Oregon pine has been reduced from 4,000 pounds (as in former reports) to 3,300 pounds per 1,000 feet. Redwood is estimated at 4,000 pounds per 1,000 feet. These weights are taken because of their use by the lumbermen in estimating shipments. Using 4,000 pounds for the weight of both redwood and pine the commerce for 1908 would amount to 275,399 tons. superstructure, and 1,015 tons of granite was placed as a berm at the toe of the ocean slope of the superstructure. The substructure was extended 567 feet, making a total length of 9,174 feet. The superstructure was extended 388 feet, making the total length about 8,458 feet. Bulkheading and filling certain areas in the outer harbor has been in progress during the year by the Pacific Wharf and Storage Company and the San Pedro, Los Angeles and Salt Lake Railroad Company. The Outer Harbor Dock and Wharf Company has constructed a 12-inch suction dredge for work on its concession. CONTRACT FOR CONSTRUCTION OF BREAKWATER. Name of contractor: 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. 2,370 COMMERCIAL STATISTICS FOR YEAR ENDING DECEMBER 31, 1908. 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 the year in dredging two cuts along the easterly side and two cuts along the westerly side of the turning basin and • Of the appropriation of $50,000 made by river and harbor act of June 3, 1896, for deep-water harbor at Santa Monica Bay, or San Pedro Bay, California, $35,555.76 was expended by the Board provided for by said act. For the full report of the Board, with its accompanying documents, see Senate Document No. 18, Fifty-fifth Congress, first session. a fifth cut almost around its northern periphery. All dredging over completed areas was carried to a depth of 25.5 feet below mean lower low water, and with few exceptions this depth was maintained. A total of 819,234 cubic yards was dredged from 4,235 linear feet of cut averaging 200 feet in width and varying from 5.5 to 30.5 feet (average 22.7 feet) in depth. This material was wasted as follows: Cubic yards Pumped 1,475 feet and wasted upon lands of the National Lumber Company Pumped 1,890 to 2,913 feet and delivered to relay plant of Pacific Wharf and Pumped 1,385 feet and wasted upon lands of the Southern California Lumber Pumped 1,803 to 3,286 feet and wasted in ocean east of the Salt Lake Railroad Pumped 1,621 to 1,991 feet and wasted upon lands of Kerckhoff-Cuzner Mill and Lumber Company on Smiths Island... Pumped 780 to 1,793 feet and wasted in the old slough north of Smiths Island behind bulkhead of Southern Pacific Company.... 4, 100 389,766 13, 800 135, 184 153, 300 123, 084 The material removed consisted of hardpan, quicksand, shell, and clay in varying proportions. A very tough stratum of the former, 5 to 7 feet thick, was found in the easterly cut, and pockets of pure shell were encountered in old sloughs, which were particularly hard to handle. The following statement shows the distribution of time for the dredge during the year: Moving and placing plant. Repairs and alterations. Cleaning suction. Hrs. Min. 411 5 5, 220 50 843 40 126 10 74 00 524 15 Time lost passing vessels. 1,560 00 Total...... 8,760 00 The following statement shows the cost of dredging during the year: 1, 197. 39 Towage and dispatch work, labor, supplies, and hire of auxiliary plant..... Deterioration of plant and property during fiscal year. Total cost of dredging.................. Considering the actual pumping time for the entire year, the average percentage of solids to the total flow through the discharge pipe was nearly 4.4 per cent. Relay pumping plant. The relay pumping plant owned by the Pacific Wharf and Storage Company and located on Terminal İsland consists of one 48-inch runner Eclipse sand and gravel pump, with 18-inch suction and 20-inch discharge, driven by three 3-phase induction motors of 100, 150, and 200 horsepower, respectively. This plant, which was being moved to a new location at the close of the last fiscal year, resumed operations July 23 and continued with 1 1 only the loss of such time as was necessary to make repairs to the plant until October 30, when work was suspended to renew the discharge line. Work was again resumed January 2 and continued until final suspension on April 30. The total running time was 2,991.45 hours. The 389,766 cubic yards of material delivered by the San Pedro to this plant was relayed by it 3,000 to 3,736 feet and wasted upon concession of the Pacific Wharf and Storage Company east of the east jetty. Miscellaneous work.-During the year 843 hours were spent in making repairs to the dredge incident to the work. The principal items were as follows: Boilers cleaned in July and January; 123 defective rivets in reenforcing sheets of steam drum were cut out and replaced and seams calked, new tubes being put in where required, and side and bridge walls renewed; main engine overhauled and all crank bearings rebabbitted; main pump was twice relined; a new fire pump was installed; the water end in condenser pump was renewed and feed pumps were overhauled; the cutter engine was dismantled, overhauled, and a new countershaft with an additional bearing under outer end was put in; all hoisting and hauling winches were overhauled; new suction pipe and forward elbow on ladder were put in; main spur gear on countershaft was bored out, bushed, and keyed to shaft; the cutter shaft was lined up and all bearings rebabbitted; the dredge was beached on August 12 and 13 to repair suction of condenser pump and to examine and repair copper sheathing on knuckles, sides, and ends of hull; worm-eaten guards were removed for 80 feet along the after end of each side and across the stern; defective spots in hull were cut out, engraven pieces set in, and a 12-inch strip of copper sheathing and new guards were put on; the deck house and hull were repainted. All of these repairs except a small amount of boiler work and the fitting of spur gear to cutter shaft, were performed by the dredge crew with the aid of the machine shop aboard the dredge, at a cost of $7,521.18. The launch Pedrito was hauled out on the inclined ways twice during the year for cleaning, painting, and repair; the engine was thoroughly overhauled and worn-out or broken parts replaced where necessary. The cost of this work was $149.10. Fifty pontons and lighters were pulled out on the inclined ways during the year. Worm-eaten spots were cut out, leaky seams were calked, new fenders and timberheads were put in where required, and bottoms cleaned and copper painted, at a cost of $820. Six skiffs were repaired, cleaned, and painted at a cost of $38.16. The outer ends of two sets of inclined ways were renewed, new shores set, and way logs braced, at a cost of $156.44. The boat landing at the government warehouses was strengthened by additional bracing at a cost of $15.52. The work was under the very efficient charge of Mr. R. A. Crawford, assistant engineer. In compliance with river and harbor act of March 3, 1909, the report of examination "with a view to obtaining a channel 200 feet wide and 20 feet deep, beginning at the turning basin, thence in a northeasterly direction to the east line of the east basin; and also a similar channel beginning at the turning basin, thence in a northwesterly direction to the north line of the west basin," was forwarded to the department May 21, 1909. |