slope of the dam with one end of each 

 stick stuck in the ground at the bottom 

 of the river. 



This dam at first was built up to 

 two feet above the normal level of the 

 river and water flowed over the top of 

 the dam; but the river banks were low 

 at this place and water also flowed over 

 the banks on one side into a slough 

 and on the other side into a swamp. 



The second phase of this hydro- 

 engineering feat was now begun. It 

 consisted of wing dams two feet high 

 on top of the river bank and parallel to 

 the stream. These were carried up on 

 the north side of the river a distance of 

 three hundred and fifty feet and on the 

 south side about two hundred feet. The 

 dam across the river was also made two 

 feet higher. The dam now, in the 

 middle of the river, was five feet high 

 under water and four feet above the 

 surface, making it nine feet in the high- 

 est part and with the two wings, six 

 hundred and seventy feet long. 



48 



