Show WILL LOCATE BOULDER DAM CITY SOON las feyas age we have begun actual construction work on tho the boulder dam project in accordance with the order received from the department said walker R young engineer in charge ot of construction tion ot of the great enterprise yesterday the statement was made to mayor J fred hesse representatives of the age and a small group ot of citizens of las vegas as mr air young explained the nature of the important work which brock and weymouth engineers of philadelphia were ing with the aid of 0 a fairchild wasp motored monoplane manned by ralph K X smith pilot T J connolly mechanic I 1 and tom moore cameraman the first work of construction it was explained consists in making a com complete topographic survey of the area arba in the vicinity of boulder dam site to cover the construction camp site the townsite te proper the afie construction railway and a portion of the reservoir site the surveys are tor securing data tor for the engineers by which to study and plan the project already very detailed information as to the dam site and appurtenant structures has been secured by ground surveys but the aerial surveys will facilitate the location of the incidental features of the project lying before the engineers at a glance the topography of the entire area the advance in aerial surveying Is not generally understood or appreciated by the public in addition to the aerial abrial mosaic ol of the whole region the engineers produce aerial topographic maps in a larger scale of the particular ares desired on these art I 1 cul L r areas the aerial survey will show the contour line of every peak and hollow with an accuracy not generally attained by the usual methods ot of making topographic surveys tho the department has adopted this method of topographic surveys because it Is quicker and cheaper than the old method of ground surveys in a few hours the aerial surveyors will secure data which by the old method would require the work of several parties of 0 surveyors yoris tor for several months month it was explained that the con construe tion engineer having these aerial topographic maps before him can quickly select the hest best location tor for the bould er dam city the definite locati location n and the cheapest and best route for the con st ruction railroad and the highway awaiting the more tedious work of 0 surveying parties on the ground so while still in its engineering stages the aerial topographic surveys now under way constitute a definite ilet luKe beginning ot of actual work on the pro jec for which congress has just provided the sum of as the first installment |