| Show i Information About Mammoth Dam Interesting Questions and Answers Bearing on Every Phase o of the Gigantic Gigant c Project Continued from last issue Q now How much secondary or dump power will be available yearly early A. A One billion five hundred and fifty fity fIt fIt- ty million kilowatt-hours kilowatt on completion completion completion comple comple- tion of the dam 1938 and this amount decreasing each year by kil Q What will be the charge for se secondary secondary secondary se- se condary or dump power A. A One-half One mill per hour delivered at transmission voltage Q Are these rates subject to ad adjustment adjustment adjustment ad- ad A A. At the end of 15 years from date of execution of ease and every 10 years thereafter the rates may be re re- re adjusted Q How much revenue will be derived deny deny- ed from the sale of ot power A. A For the first year of operation the income would be from the sale of ot kilowatt hours of primary energy at and from the sale of hors hll of ot secondary energy at The amount of Income will decrease etch each year thereafter The estimated annual income from firm energy will average abut over the e year 60 repayment p period F Q Who iWho Who will wI operate operate te and r l 1 the power plant 1 A. A The City of Los Angeles Angel and the Southern California Edison Company under the general supervision of ot a director appointed by the Secretary of the Interior Q What Is s the allocation of po power er A. A State of Arizona 18 per cent State of Nevada 18 per cent cen Metropolitan Metropolitan Metro Metro- politan Water District 36 per cent 6 per cent City of Los Angeles 13 per cent Southern Edison Co 9 per cent Q How Is the machinery In the plant to be paid for A. A The Government will install machinery and equipment costing about and the contractors will pay in 10 equal annual Installments Installments installments install Install- ments an amount sufficient to amortize the total cost Q Who will pay the cost of transmission transmission transmission trans trans- mission of power A. A The contractors who purchase the power WATER ALLOCATION Q What Is the allocation of ot water under the Colorado River com compact t A. A Based on a mean annual runoff runoff runoff run run- off of feet acre-feet the compact allocated feet acre-feet to the upper basin States and acre- acre feet fat to the ower basin States with the right of the latter to Increase heir beneficial consumptive use of such I water by feet acre-feet per annum Q How much of the w water water ter allocated cat cat- ed to the lower basin States does California Cali Call California fornia get A. A California has agreed that the aggregate ate annual consumptive e use of the river water shall not not exceed ic ed feet acre-feet of the allocated to the lower basin by article III a of the compact Q O. How liow n n much n water is allocated to Nevada Ne and Arizona A A. A The Boulder Canyon CanOn project act authorizes Arizona and N Nevada da to enter Into an agreement which shall provide that Nevada Ne gets a acre feet feet and Arizona 2800 feet acre for tor exclusive beneficial consumptive use also that Arizona may annually use one half of ot the surplus surplus surplus sur sur- plus water ter by the compact compact compact com com- pact and t i shall shaU have the exclusive beneficial 1 consumptive consumptive iye use use I of of ot th the oUa Oila River and Within within the State No such agreement has baa yet been made RIVER FLOW Q What has hs been the greatest measured discharge of the Colorado River iver ver A. A Two hundred bundred thousand cubic feet teet per second measured at Yuma Arizona Q Have there been any larger Hoods floods A. A A maximum flood of cubic cu cu- bic feet per second is believed to have been the flow now for tor a short period In 1884 Q What has been the aest measured discharge A. A One thousand two hundred cubic cubic cubic cu cu- cu- cu bic feet p per er second measured at Yuma Arizona Q What Is the discharge at at the tM dam site A. A The average Is la cubic feet teet per second with an average annual run-off run of acre feet Q What will be the maximum flood nood discharge after of the project A. A The largest flood since 1900 would be held to cubic feet per second at the dam and cubic feet per second In the delta region An 1884 flood would be reduced to an overflow of cubic feet per se se- se cond IRRIGABLE AREAS Q How much irrigable land is there below the Boulder reservoir Inthe in inthe inthe the United States i A A. A About acres according to preliminary estimates Q How is this area am area divided bet between een the States A. A Arizona acres California 1 acres and Nevada acres These are gross areas and may be materially materially materially ma ma- changed when Irrigable area surveys are made Q What are some same of the possible projects in Arizona A. A The Parker Olla Valley project with a gross area of more than acres in the southwestern part put of the State an of which s aUthO authorized by 1 Congress ii ress und under act The Parker Parker project project of ot about acres near Parker Mohave Valley with an irrigable area of ot acres near Needles Calf and the Cibola Valley of ot acres in Yuma county The Yuma project adjacent to the city of Yuma is an active Federal project with about acres irrigated at atthe atthe atthe the present time and a total ultimate irrigable area of acres include IncludIng including ing about acres of ot undeveloped u mesa land lU 1 Q What are the principal California projects which may be benefited A A. The Imperial Valley has a present present present pre pre- sent irrigable area of acres and about acres can be irrigated under under under un un- der the American All Canal The Coachella Valley near Indio has an Irrigable ir irrigable Ir- Ir area of ot acres which can be served by a branch of the Amer All ican Canal There are acres Inthe in inthe inthe the Palo Verde Valley project near Blythe Q Where is the Irrigable acreage In n Nevada A. A Cotton Cottonwood wood Island on the Colorado Colorado Colo Colo- Colorado rado River located due west of Chloride Chloride Chlo Chlo- Chloride ride Ariz has an area of acres acre The State plans to develop elop additional areas by pumping Q What is the approximate classification class- class of ot the irrigable lands A. A Public 44 per cent private 4 40 per cent State 1 per cent railroad 2 per cent Indian 8 per cent und nand entered entered entered en en- 5 per cent TOWN SITE Q Where will the new town on the Boulder Canyon project be located A. A The location Is about 6 8 miles mUes due west of the dam site a at the summit and near the terminus s of of the U the Union Pacific section of ot the branch railroad Q Has lias the town been named A. A Yes it has been given the name of Boulder City by Secretary Wilbur Q What about a water supply A. A It Is proposed to pump from the Colorado River a distance of ot 6 miles with a lift of about 1850 feet and a settling tank sand filters and chemIcal chem chem- teal leal treating plant The intake willbe willbe will wll be about feet downstream from the dam site on the Nevada side A storage tank of gallon Capacity ca capacity capacity ca- ca win will be erected in the town site Q a a paler other th r improvements provement wilbe will wil willA be necessary A. A A sewage system must be install install- Install Install-I ed Sidewalks and curbs must be provided provided provided pro pro- vided and streets streeta surfaced Q What is the building program A. A Government employees paly engineers inspectors and clerks will require an office building and a number of houses for living quarters Q Will wm the contractors on the dam damand damand damand and power pow power plant quarter their then employees employees employees em em- In n the town A. A Yes it is 13 planned to set aside a portion of the town for contractors contractors' camps camp The contractors will arrange for the housing of their workmen with building regulations subject to Govern Govern- Government Government ment went approval Q Who owns the lands in the town townsite townsite townsite site A. A The Government owns the land lane which i Sa is vacant vacant public land and under under under un un- der first form form withdrawal t l Q Q How Hose can one obtain a town lot lo for tor business purposes A. A A plan under consideration Is late Isto to lease the land on year 20 leases the Government to r retain ownership supervisory super control Continuation of the leases will be contingent upon the good behavior of the tenant A model town Is the objective Q What will be the population A A A. From to during the construction period according to present present present pre pre- sent estimates Q Will this town be permanent A. A It will no doubt be permanent because the foot toot dam and mile US-mile lake will be a great attraction for tourists There are also many scenic wonders close by Including the three I national parks parks Grand Grand Canyon Zion and Bryce Canyon Q What are the Immediate plans for the town A. A Field engineering parties are a aj at work laying out the town site and making necessary surveys Contracts will soon be let for waterworks sewerage sewerage sewerage sewer sewer- age system street surfacing sidewalks sidewalks sidewalks side side- walks and curbs also for a highway from the town to the dam site Q How much money will be ex expended expended expended ex- ex on this work program A. A In the appropriation for the first years year's operations Is s provided provided provided pro pro- vided for tor the town and highway made Q What provisions are being for tor erecting buildings suited to the climatic conditions In that section A. A A town planner has been engaged engaged ed who is well acquainted with the type of ot building construction required The Bureau of Reclamation encountered encounter encounter- ed somewhat similar conditions on the Yuma and Salt Balt River projects project ta In Art Art- sons Eona Q What are the the average temperature tempera tempera- tare turea In locality k a A. A They vary from 20 per tp cent to per cent Q How near will ill the pew new town beto be beto beto to Lea Las Vegas A A. A About 25 miles mUes I Q What Is the elevation of the town site A. A About 2500 feet fat above sea level |
