612 



NEW YORK STATE MUSEUM 



Storage Reservoir on Salmon River West 



In 1898 the Board of Engineers on Deep Waterways extensively 

 considered a reservoir on Salmon river, just above High Falls, as 

 one of the feeders of the proposed deep waterway. The object of 

 the reservoir was to provide storage within reasonable distance 

 of the main deep waterway so that in case of temporary stoppage 

 of the main feeder to the north, water could still be supplied to 

 the canal. The feeder crosses Salmon river a short distance below 

 the proposed reservoir. The ordinary elevation of the water sur- 

 face of Salmon river just above the proposed dam near High 

 Falls is approximately 897 feet, the flats at the side being a little 

 above 900 feet. The water surface elevation, as proposed for the 

 reservoir, was 953 feet. The total rise of water surface at or near 

 the dam was therefore, roundly, 56 feet. In addition to the main 

 barrage there were three dikes, the first, cutting off a narrow, 

 lateral valley near the lower end of the reservoir, while the second 

 and third, to the south of the village of Kedfield, were in a broad, 

 nearly level, somewhat swampy plain, where a comparatively 

 small rise would throw Salmon river water over into the catch- 

 ment of Mad river, a tributary to the west branch of Fish creek. 



The volume and area, as determined by the surveys, are as 

 follows : 



Area, Volume, 

 Elevation in square miles in cubic feet 



910 1.619 



930 4.481 1,700,582,400 



950 7.356 5,000,688,000 



960 8,458 7,205,447,400 



Elevation 910 was taken as the base of the sections, the volume 

 below that level being neglected except that, in order to obtain 

 a rounded quantity of 7,500,000,000 cubic feet for the volume at 

 elevation 960, we may take the volume below 910 as 294,523,000 

 cubic feet, a quantity well within the volume shown by the sur- 

 veys and maps. On this basis we have the following tabulation : 



Area, Volume, 

 Elevation, in feet in square miles in cubic feet 



900 0.486 



910 1.619 294,523,000 



!).'{() 4.481 1,995,105,000 



950 7.356 5,295,211,000 



960 8.458 7,500,000,000 



