BEAVER DAMS. 



120 



and continues across the entire length of the dam, 

 although quite narrow upon its left half. 



Measurements. 



straight line. 



First section 70 feet. 



Second section 50 " 



Third section 50 " 



Fourth section 50 " 



Fifth section 50 " 



Sixth section 50 " 



Seventh section 70 " 



Here the dam turns down stream 10 ft. from bank, and runs 62 



Total length of dam measured on crest line, 



488 feet. 



Other Measurements. 



Slope of lower face 



Slope of water face 



Depth of water at end of 

 slope 



Vertical height of dam 



At 50 



ft. from 



end. 



Ft. In. 

 3 G 



At 85 



ft. from 



end. 



Ft In. 

 8 6 

 10 



3 2 



At 144 



ft. from 



end. 



Ft. In. 

 10 8 

 12 



9 

 4 9 



At 200 



ft. from 



end. 



Ft. In. 



At 260 



ft. from 



end. 



Ft. In. 

 8 



5 

 1 8 



At 317 1 At 375 



ft. from ft. from 



end. end. 



Ft. In. 

 6 



7 



1 8 



Ft. In. 

 5 

 6 



4 

 1 8 



This dam is a continuous work from one end to the 

 other. In two or three places there is a natural rise 

 of the ground as high as the top of the dam for a few 

 feet in length, but the inner slope is banked with 

 earth, and the summit worked. There are other 

 places where the embankment is solid, showing very 

 little wood intermixed, but it is artificial. The depth 

 of the pond a few feet back, or at the end of the water 

 slope, does not necessarily show the original ground 

 surface, as earth may have been brought up from the 

 bottom to place upon the damj and yet the removal 



9 



