Laserfiche WebLink
<br /> <br />Ir.- <br />e <br />00 <br />-' <br /> <br />c <br /> <br />Chronology <br /> <br />r-- <br /> <br />1540 <br /> <br />Alarcon discovers the Colorado River and explores its lower reaches. Cardenas <br />discovers the Grand Canyon, <br /> <br /> <br />Workmen excava!t'd thousands of rons of riverbed <br />materia/to reach foundation bedrock for fhe dam <br />and powe1pima. <br /> <br />4 <br /> <br />1776 Father Escalante explores the upper Colorado and its tributaries, <br /> <br />]857-58 Lc J, C. Ives navigates the Colorado River and, with his steamboat The <br />Explorer, reaches the lower end of Black Canyon, <br /> <br />1869 Maj, John Wesley Powell makes the first recorded trip through the Grand <br />Canyon. <br /> <br />1902 President Theodore Roosevelt signs the Reclamation Act. Reclamation engineers <br />begin their long series of investigations and reports on control and use of the <br />Colorado River. <br /> <br />1905-07 The Colorado River breaks into Imperial Valley, causing extensive damage and <br />creating the Salton Sea, <br /> <br />1916 <br /> <br />Unprecedented flood pours down the Gila River into the Colorado, and flood <br />waters sweep into Yuma Valley. <br /> <br />1918 Arthur p, Davis, Reclamation director and chief engineer, proposes control of <br />the Colorado by a dam of unprecedented height in Boulder Canyon on the <br />Arizona-Nevada border. <br /> <br />1919 All-American Canal Board recommends construction of the All-American Canal. <br />Bill introduced to authorize its construction. <br /> <br />1920 Congress passes Kinkaid Act authorizing Secretary of Interior to investigate <br />problems of Imperial Valley, <br /> <br />1922 Fall-Davis report entitled Problems of Imperial Valley and Vicinity, prepared <br />under the Kinkaid Act and submitted to Congress February 28, recommends con- <br />struction of the All-American Canal and a high dam on the Colorado River at or <br />near Boulder Canyon. Representatives of the seven Colorado River Basin States <br />sign the Colorado River Compact in Santa Fe, New Mexico, November 24. First <br />of the Swing-Johnson bills to anthorize a high dam and a canal is introduced in <br />Congress. <br /> <br />1924 Weymouth report expands Fall-Davis report and further recommends Boulder <br />Canyon project construction. <br /> <br />1928 Colorado River Board of California reports favorably on feasibility of project <br />Boulder Canyon Project Act, introduced by Senator Johnson and Representative <br />Swing, passes the Senate December 14, the House December ]8, and is signed <br />by President Calvin Coolidge December 21. <br /> <br />1929 Six of the seven Basin States approve Colorado River Compact Boulder Canyon <br />Project Act declared effective June 25, <br /> <br />1930 Contracts for the sale of electrical energy to cover danl and powerplant financing <br />are completed, <br /> <br />1932 Bureau of Reclamation opens bids for construction of Hoover Dam and <br />Powerplant March 4, awards contract to Six Companies March II, and gives <br />contractor notice to proceed April 20, <br />