105 



Fig. 29 Section of dam at Little Falls. 



In addition to Gilbert's dam, there are two other dams at Little 

 Falls, the upper one being a State dam. diverting water to the 

 Erie canal. The record as given in table Xo. 72 does not include 

 the diversion to the canal. 



Discharge measurements of Mohawk river at Ridge Mills. The 

 gaging station at Ridge Mills was located at the dam of the Rome 

 Waterworks, three miles above Rome. This dam is of rough tim- 

 ber with plank facing, having a slightly irregular crest, 123 feet 

 in length, which is divided into several sections to facilitate dis- 

 charge computations. The computations have been made from 

 data as per Cornell University experiment Xo. G. The following- 

 cut shows a section of the dam on the Mohawk river at Ridge 

 Mills in comparison with Bazin's series No. 162 : 



Fig. 30 Cross-section of dam on Mohawk river at Ridge Mills, in com- 

 parison with Bazin's series No. 162. 



