IMPROVEMENT OF RIVERS AND HARBORS IN THE LOS ANGELES, CALIF., DISTRICT This district comprises that part of California which lies south of Cape San Martin (about 265 miles north of the entrance to Los Angeles Harbor) embraced in the drainage basins tributary to the Pacific Ocean north of the international boundary; that portion of the Great Basin and the drainage basin of the Colorado River and tributaries below and including the San Juan River in southeastern California, southern Nevada and Utah, southwestern Colorado, western New Mexico, and Arizona; and the minor drainage basins in southern Arizona and southwestern New Mexico west of the Continental Divide. District engineer: Col. Rufus W. Putnam, Corps of Engineers. Division engineer: Col. Edwin C. Kelton, Corps of Engineers, to April 16, 1945; Brig. Gen. Philip G. Bruton, United States Army, since that date. Navigation IMPROVEMENTS Flood control-Continued Page Page 1. San Diego Harbor, Calif. 1983 13. San Antonio Dam, Santa 2. Newport Bay Harbor, Calif. Ana River Basin, Calif. 2022 3. Los Angeles and Long 4. Santa Barbara Harbor, Calif. 5. Morro Bay Harbor, Calif. 6. Examinations, surveys, and contingencies (general) 7. Other navigation projects for which no estimates are submitted Flood control 2024 1995 Channel, Santa Ana Riv- 2025 1998 16. Lytle and Cajon Creeks, 2000 Santa Ana River Basin, 2026 12. Fullerton Dam, Santa Ana surveys, and contingen- 2033 2034 8. Los Angeles County drainage area, California___ 9. Santa Ana River, Calif.__ 10. Prado Dam, Santa Ana River Basin, Calif.----11. Brea Dam, Santa Ana River Basin, Calif.____ River Basin, Calif. 2021 23. Plant allotment 1. SAN DIEGO HARBOR, CALIF. Location. On the Pacific coast just north of the United StatesMexico boundary line, about 96 and 506 miles southeast of Los Angeles Harbor and San Francisco Bay, respectively. (See U. S. Coast and Geodetic Survey Chart No. 5107.) Previous projects.-Adopted by the River and Harbor Acts of August 30, 1852; March 3, 1875; September 19, 1890; and June 25, 1910. For further details see page 1976 of Annual Report for 1915, and page 1642 of Annual Report for 1938. Existing project.-Provides for a rubble-mound jetty 7,500 feet long on Zuniga Shoal; for an entrance channel 40 feet deep, 800 feet wide; for removal of Middle Ground Shoal and widening the entrance channel to the eastward in that vicinity to a depth of 36 feet; for a bay channel 35 feet deep and 2,200 feet wide from the vicinity of Whalers Bight to the naval air station; for an anchorage area northward of the bay channel 1,200 feet wide, 12,000 feet long, and 35 and 26 feet deep in the easterly and westerly halves, respectively; for an approach to the 35-foot anchorage, triangular in shape, 900 feet wide and 35 feet deep; for an approach to the 26-foot anchorage, triangular in shape, 800 feet wide and 26 feet deep; for a seaplane basin 1,500 feet wide, 12,000 feet long, and 8 feet deep, landward of the anchorage area; for a turning basin 35 feet deep, opposite the municipal piers; for a channel approximately 20,000 feet long, 1,500 to 2,500 feet wide, and 30 feet deep in the southerly part of the bay; for a channel to National City and Chula Vista 20 feet deep and 200 feet wide; for the dredging of a seaplane basin in the southerly part of the bay, 5,000 to 8,500 feet wide, 21,000 feet long, and 10 feet deep, and for filling an area of approximately 110 acres adjacent to the southerly end of the basin; and for an earthen dike 7,735 feet long to divert the San Diego River from San Diego Bay to False Bay. The plane of reference is mean lower low water. The range between mean lower low water and mean higher high water is 5.6 feet. The extreme range is about 10.5 feet. The estimated cost of new work is $10,695,000, exclusive of amounts expended on previous projects and $10,000 to be contributed by local interests. The latest (1937) approved estimate for annual cost of maintenance is $40,000, of which $20,000 is for entrance-channel dredging and $20,000 for bay dredging. The existing project was authorized by the following river and harbor acts: Acts Mar. 3, 1875 Sept. 19, 1890 Mar. 4, 1913 Aug. 8, 1917 Do..... Sept. 22, 1922 Mar. 3, 1925 July 3, 1930 For the 40-foot channel through the outer bar; S. Doc. No. 81, 71st Cong., 2d sess. Aug. 30, 1935 Widening the bay channel to 2,200 feet with 1 Included in the Emergency Relief program May 28, 1935. H. Doc. No. 223, 73d Cong., 2d sess. Local cooperation.-The River and Harbor Act of July 3, 1930, provides that before any work is undertaken on the turning basin, local interests shall furnish necessary disposal areas and give assurances satisfactory to the Secretary of War and the Chief of Engineers that they will deepen areas adjacent to the municipal piers to depth of 35 feet, and that before any work is undertaken on the channel to Chula Vista local interests shall contribute $10,000 in cash. These conditions have been complied with, except in the case of the channel to Chula Vista. The modification of the project authorized in act of October 17, 1940, is subject to the provision that the Chief of Engineers may direct the disposal of dredged materials on lands not under Federal ownership, provided that local interests reimburse the United States for the cost. involved in excess of the cost of disposal by the most economical method and hold and save the United States free from claims for damages resulting from such disposal. This requirement was accepted by resolution of the city of Coronado, and approved by the Chief of Engineers. Terminal facilities.-In San Diego Harbor there are 20,955 linear feet of wharves, exclusive of Government-owned wharves, of which 11,785 feet are municipally owned. In addition, there are two wharves at Coronado and one Government-owned wharf at North Island. Operations and results during fiscal year-New work.-No work was done under the contract for dredging in area S, the work having been suspended in March 1944 at the request of the Navy Department to permit use of the dredges on more urgent work. Maintenance.-None. The costs were $6,046.97 for new work, which included surveys to determine condition of the project. The expenditures were $24,387.82 from regular funds. Condition at end of fiscal year. The existing project was 82 percent complete. The San Diego River dike was completed in 1876, the Zuniga Shoal Jetty in 1904, the entrance channel to a width of 800 feet and a depth of 40 feet in 1934, and the bay channel to a width of 2,200 feet and a depth of 35 feet in 1936. In area M the westerly anchorage area and the seaplane basin were dredged to depths of 26 and 8 feet, respectively, and areas N and O were dredged to a depth of 30 feet in 1942. The Zuniga Shoal sand barrier was completed in October 1941, dredging for the Navy at mooring No. 49 in December 1941, and repair work on San Diego River dike in January 1942. 672607-46-pt. 1, vol. 2—49 Divisions 3 and 4 of area S were completed in August 1942, and division 2 in March 1944. Dredging in area S to the extent desired by the Navy was 82 percent completed. Dredging the triangular approaches to the 26-foot and 35-foot anchorages in area M has not been commenced. Controlling depths were as follows: 1 Southerly three-quarters dredged to 10 feet; remainder varies from 10 feet to above mean lower low water. Work remaining to complete the existing project consists of completion of dredging in area S, the triangular approaches to the 26- and 35-foot anchorages in area M, the northwesterly corner of area N, and the southerly portion of the Chula Vista Channel. Total costs and expenditures for the existing project to June 30, 1945, were as follows: Proposed operations.-The balance unexpended on June 30, 1945, amounting to $471,905.29, will be applied as follows: Accounts payable June 30, 1945- Total for all work----. $17,878.82 454, 026. 47 471, 905. 29 The additional sum of $245,000 can be profitably expended during the fiscal year 1947, of which $165,000 is for dredging by contract the triangular approaches to the 26- and 35-foot anchorages in area M, $30,000 is for dredging by Government hopper dredge a triangular area 3,370 feet long by 400 feet wide channelward of the pierhead line between stations 38+30 and 72+00 in area N, and $50,000 is for maintenance dredging by Government hopper dredge to project depth of 40 feet in the entrance channel. With the expenditure of the above amounts, the project will be completed except for part of the 10-foot-depth seaplane basin in the south bay not required at the present time, and the Chula Vista Channel work on the latter being dependent on conditions of local cooperation not complied with. Cost and financial summary Cost of new work 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– 1, 482, 000. 00 Amount (estimated) required to be appropriated for completion of existing project 2 Amount that can be profitably expended in fiscal year end ing June 30, 1947: For new work 2 For maintenance Total 2 2 1 Exclusive of $4,440.59 expended from contributed funds. "Exclusive of available funds. 2. NEWPORT BAY HARBOR, CALIF. 195, 000. 00 50,000.00 245, 000. 00 Location. This harbor is located on the Pacific coast, 24 miles outheast of Los Angeles-Long Beach Harbors, and 72 miles northvest of San Diego Harbor. (See U. S. Coast and Geodetic Survey Chart No. 5108.) |