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NEW YORK STATE MUSEUM 



James ville reservoir has a tributary catchment area of 46.2 

 square miles. The storage capacity is 170,000.000 cubic feet and 

 the area of water surface 252 acres. It is situated on the head- 

 waters of Butternut creek, tributary to Chittenango creek 

 through Limestone creek. The outflow reaches Erie canal 

 through the Orrville feeder. 



From Chittenango falls to Chittenango village, a distance of 

 five miles, this stream falls from elevation 860 + T. W. to eleva- 

 tion 420. From the foot of Chittenango falls to Chittenango vil- 

 lage, the stream flows through a deep, narrow valley, where 

 several water powers formerly in use are now mostly abandoned. 



Owing to its location below three feeders of the canal, the 

 records at Bridgeport do not show the actual runoff of the 

 catchment area during the canal season. During the winter, 

 drainage into the canal is sometimes drawn off into Chittenango 

 creek at the aqueducts crossing the main stream and its tribu- 

 taries. Owing to uncertainty in the runoff, the Bridgeport sta- 

 tion was abandoned in May, 1901. 



Geologically, Chittenango creek lies in the horizon of the 

 Niagara, Salina and Lower Helderberg groups and Hamilton 

 shales. 



Discharge measurements of Black river. Observations of the 

 flow in Black river have been made at the dam of the Watertown 

 Waterworks, located about two miles above Watertown. at Hunt- 

 ingtonville. This station was established in February, 1897, and 

 the record has been furnished by the Board of Water Commis- 

 sioners of Watertown. At this gaging station the stream flows 

 in two channels with an island between. A high dam on the 

 right creates a settling basin for the water supply of Watertown. 

 The second dam, on the opposite side of the island, is of timber 

 with crest slightly irregular in profile. For ease in computa- 

 tion this crest has been divided into* six parts, each being con- 

 sidered as horizontal. The discharge over the dam has been 

 computed, using coefficients derived from Cornell University ex- 

 periments Nos. 2 and 12, as given in detail in the paper On the 

 Flow of Water Over Dams. 



The entire flow of Black river, aside from the leakage and 

 diversion for the water supply of Watertown, passes over the 



