14 



POPULAR SCIENCE MONTHLY 



Intake No. 2, looking out toward the river. October 17, 1905. 



The seventh attempt was pushed with even greater determination 

 than the sixth. A larger corps of men was employed, and the work 

 was planned upon a more substantial scale. It progressed quite slowly 

 on account of high water at different times, but at last it is finished, 

 and the engineers feel confident that the problem, after a year and a 

 half, is now solved. The gates were declared completed about the 

 middle of July, but on account of the swollen condition of the Colo- 

 rado Kiver they have not yet been tested. The gate on the California 

 side is constructed to admit 20,000 cubic feet per second, and the pres- 

 ent flow of the river is in excess of 30,000 cubic feet per second. As 

 soon as the river goes down to its normal condition the gate will be 

 tested, and the engineers who have managed its construction assert 

 that there is no possibility of its not standing the test. 



Details of Sixth Attempt, November 20, 1905. 



