1007 Metropolitan Water District, April 24, 1930 (symbol Ilr-645) 1008 Metropolitan Water District, September 28, 1931 (symbol Ilr- 1009 San Diego, February 15, 1933 (symbol Ilr-713). (1111) San Diego, October 1, 1934 (symbol Ilr-1151) Injunction against Imperial diversion weir, 1916. 1103 Extract from Laguna Dam contract, October 23, 1918. Act authorizing expenditures for distribution works, All-American Canal; act of June 26, 1947 (Public Law 121, 80th Cong.) . . A591 Provisions of the Interior Department Appropriation Act for fiscal year 1949; act of June 28, 1948 (Public Law 841, 80th A592 Coachella distribution and flood-control works; finding of feasi- 1201 Cooperative contract of February 10, 1933, for construction of (1301) Litigation-United States v. Arizona (295 U. S. 174, 1934). 1202 Authorization; act of August 30, 1935 (49 Stat. 1039) 1203 "Forebay" contract of September 29, 1936 . . 1204 "Power plant" contract of April 7, 1939, as amended 1205 "San Diego diversion" contract of October 1, 1946. Mexican Diversion Dam (Morelos Dam) Comprehensive Plan of Development of the Colorado River (401) Boulder Canyon Project Act; act of December 21, 1928 (45 1301 Arizona v. California, et al. (283 U. S. 423, 1931). 1302 Arizona v. California et al. (292 U. S. 341, 1934) 1303 United States v. Arizona (295 U. S. 174, 1935) 1304 Arizona v. California, et al. (298 U. S. 558, 1936); rehearing denied The Mexican Water Treaty: Authorization for negotiation, act of May 13, 1924 (43 Stat. 118), as amended by act of March 3, 1927 (44 Stat. 1403), by act of August 19, 1935 (49 Stat. 1402 Leases, etc., of land acquired under treaty authorized by act of August 27, 1935 (49 Stat. 906), amended by act of June 19, 1939 1403 Transmittal of treaty (S. Ex. A, 78th Cong., 2d sess.); message from President, February 15, 1944; report of the Secretary of 1404 Transmittal of protocol (S. Ex. H, 78th Cong., 2d sess.); message from the President, November 24, 1944; report of the Secretary 1408 Morelos Dam: Minute 189 of the International Boundary and Water Commission, May 12, 1948. . A897 1409 Morelos Dam: Approval by the State Department, June 10, 1948, of Minute 189. A907 1410 The Mexican treaty and the All-American Canal: Proposal of Imperial Irrigation District, December 2, 1947. . A909 1411 The Mexican treaty and the All-American Canal: Pilot Knob A917 1412 The Mexican treaty and the All-American Canal: Reply of State Department, August 4, 1948, to proposals of Imperial Irrigation District ILLUSTRATIONS A921 Map, Bureau of Reclamation, June 1931, "All-American Canal System, -facing A620 -facing A670 Map, Bureau of Reclamation, August 1947, "All-American Canal System, facing A750 -facing A906 Map, International Boundary and Water Commission, May 1948, "Colorado River-Imperial Dam to San Luis-Showing Location of Morelos Diversion Structure". Plans, International Boundary and Water Commission, "Main Diversion Structure, Colorado River, to be Built by Mexico Under the Treaty of 1944". -facing A906 HISTORICAL BACKGROUND OF THE BOULDER CANYON PROJECT A. The Scope of the Boulder Canyon Project and Related Projects The lower Colorado River, in its present stage of development, is controlled by Hoover Dam, at Black Canyon, 325 miles above the upper Mexican boundary, and its waters are impounded or diverted at seven other dams below Hoover. In order, from north to south, they are: (1) Davis Dam,1 67 miles below Hoover Dam. This structure, under construction, will reregulate the discharges from Hoover Dam, and is one of the works contemplated by the Mexican water treaty.2 (2) Parker Dam3 (88 miles below Davis), impounding Lake Havasu, the diversion reservoir of the Metropolitan Water District's Colorado River aqueduct.* (3) Headgate Rock Dam (14 miles below Parker), a diversion structure for the Colorado River Indian Reservation, Arizona. 7 6 (4) Palo Verde Weir (43 miles below Headgate Rock Dam), the diversion structure for the Palo Verde Irrigation District, California. (5) Imperial Dam (90 miles below the Palo Verde Weir and 22 miles above the upper Mexican boundary), the diversion structure for the All-American Canal in California, and the Gila Canal in Arizona. 9 (6) Laguna Dam (5 miles below Imperial Dam) constructed in 1909 to divert water for the Yuma project, Arizona. (7) Morelos Dam 10 (in Mexico, about 1 mile south of the upper boundary, with its eastern abutment in Arizona). This structure, 1 See ch. XII (A). 2 See ch. XIV; appendix 1405. See ch. XII (B). 'See ch. XII (C). See ch. XII (E). 7 See ch. XI. See ch. XII (H). 10 See ch. XIV; appendixes 1408, 1409. |