| Show Information About Mammoth Dam Interesting Questions and Answers Bearing on Every Phase of the Gigantic Project I Continued from last Issue AMERICAN ALL-AMERICAN CANAL Q Is the ike American All Canal a part of 01 the Boulder Canyon project A. A Yes There are three features included In Included Included In- In In the project the project the Hoover Dam a power plant and the American All-American Canal Q What is the purpose of the canal A. A To carry water from the Colorado River to the Imperial and Coachella valleys alleys In tn southeastern tn r p ni a u. u UW Q Why the name American All A. A Because the canal will 1 be built entirely in the United States The present Imperial main canal is largely in Q What part of the cost of the Boulder Carrion project is allotted allotted allotted allot allot- ted t tn the canal cana A. A not Including Interest during The Boulder Canyon Canyon Canyon Can Can- yon Pro Project ct Act of December 21 21 1928 authorized authorised the building of n a main canal from the Colorado River Riter to the Imperial Imperial Imperial Im Im- and Coachella valleys but did not Include in the authorized d appropriation atlon of or any money for lor the Coachella branch The Colorado River rover Board that Additional additional Addi addi- additional win will be 11 to build branch canal to Coachella hella Valley Q Is this thU expenditure reimbursable A. A Yes Under a 8 repayment contract with the irrigation districts the cost coat of th the canals and appurtenant structures wilt witt 1 be returned to the Government as provided in the reclamation law Q a Will the districts district have hate to pay for forthe forthe forthe the water A. A There will be no charge charse to the two valleys va for the use storage or de delivery delivery de- de livery of water for irrigation or water ter for potable purposes Q Where Is the proposed location of the Intake A. A Two locations are under consideration consideration consideration consider consider- 1 The Laguna Dam about 10 30 miles northeast of Yuma Arizona the diversion point for the main canal of the Yuma Federal irrigation project 2 A new diversion dam to be built bum about 5 miles north of Laguna to gain additional head with a resulting In Increase increase increase in- in crease In area irrigable by Ly gravity and anda a saving In excavation through the sand hill country west of Yuma Q How much water ater will the canal carry A. A An Initial diversion of cubic feet per second is planned which In Includes includes includes in- in a water supply for the Yuma project Q What will be the dimensions of ol the canal A. A The maximum section will be beabout beabout beabout about feet wide at the water surface surface surface sur sur- sur- sur face feet bottom width and 22 feet deep Q What will be the length The American All Canal will be 75 miles long The Coachella branch will willbe willbe ill be miles long Q Are the sand hills to be crossed by the canal A. A Yes The canal for 10 miles will pass through a ridge of shifting sands Here Were the deepest cutting is from to feet Q What hat means are being considered to prevent blow sand from drifting Into the canal A. A Growing Gro vegetation in a zone each side of the canal Covering ering the dune excavated ma ma- sand with the Spraying the sand with ith crude oil Maintaining a 30 foot berm on each side of the canal at mesa floor level canal be of the Q Will any portion lined ined with ith concrete A. A Four miles of the American All and 33 miles of the Coachella branch will require lining Q What structures are proposed or culverts will wall be required A. A Siphons ed to carry the canal under numerous the American All and 79 19 washes 10 on on the Coachella branch The All- All American Canal will wUl have to be carried car- car carried carried ried under the Alamo and New rivers by siphons Q What is the estimated total ex ex- ca A. A to cubic yards of which 4 per cent is 15 rock Are there opportunities for power de development de- de A A. Yes Yee At Pilot Knob about aboUt 1 7 miles West of Yuma and also at four drops dropson on the canal can be developed develop develop- Q How lIow much power ed kilowatts A. A About water supply for la U the Q is additional l city cUy of San Diego tied in the Ameri All-Ameri- can Canal pIanA plans pIan A A. A San Diego is considering the feasibility feasibility feas feas- of having water carried through the projected American An-American Canal and the Imperial District s system stem to betaken be betaken betaken taken from some point on the west side of the Imperial Valley to Ban San Diego Q How much water is San Diego asking for A A. A cubic feet fett of water per second together with the n necessary essary energy to LL ins HI this mis water and lna deliver it to the me coastal plain In San Diego County The pumping lift Is over owr feet fret IMPERIAL AND COACHELLA VALLEYS Q What Is the Irrigable area of the Imperial Irrigation District A A. A About acres Q How much land Is now irrigated A A. A From to acres Q What are the principal crops A. A Alfalfa cotton cantaloupes lettuce lettuce lettuce let let- tuce barley corn com alto maize and small fruits About carloads of cantaloupes and lettuce are shipped out each season Q What is the growing u season son A. A days Q What is the elevation of the valley valley valley val val- ley A. A From feet below sea level atthe at atthe the he Salton Sea to 0 or sea level The adjoining mesas or high lands vary ta to elevation from 50 to feet Q et What is the rainfall in this section section section sec sec- tion A. A About 3 inches a year Q How large Jarge is the Coachella Valley A A. A The gross grass acreage is acres Under the proposed canal system about about a- a about bout acre can be ir ir- ir There are ere now about acres under cultivation Q What is the status of lands in the valleys as to ownership A. A Approximately 20 per cent public 70 per cent private and 10 per cent B State ate railroad and Indian Q What will be the total irrigable area In the Imperial and Coachella valleys and adjacent mesas under the proposed canals A. A The estimated area is la acres SETTLEMENT Q Are there any public lands open to homestead entry in the areas below Hoover Dam susceptible of irrigation A A. A No All AU of these lands have been withdrawn from entry Q When will these lands be opened to settlement A. A Not until the dam is completed and ani water can be furnished for irrigation irrigation tion purposes which will not be before 1938 Q How will the lands be opened A. A Under the provisions of the reclamation reclamation reclamation mation law and similar to openings on the Federal irrigation projects Q Will preference right of entry beglen be given gl to service ex men A A. A Yes For a period of three months I after date of opening Q What Federal projects have climatic climatic cli cU- matic matie and crop conditions similar to those prevailing on the Boulder Canyon Canyon Canyon Can Can- yon project A. A The Salt River in Arizona Yuma in California Arizona and Orland in California Q What will be the principal crops grown A. A Alfalfa cotton grain melons citrus and other fruits vegetables Q Have surveys been made to de determine determine determine de- de termine the irrigable areas A. A No Surveys are in progress in California and will wUI soon be undertaken undertaken undertaken under under- taken in Arizona |
