626 



NEW YORK STATE MUSEUM 



The foregoing estimates were made early in 1896 and due to 

 change in conditions, they would be considerably increased in 



A general estimate of the cost of the single large "reservoir in 

 Schroon valley shows that with a dam at Tumblehead falls 59 

 feet in hight there would be impounded 15,925,000,000 cubic 

 feet. The preliminary estimate indicates a total cost of $840,- 

 000, and a later survey indicates about $1,000,000. The final 

 revision of the estimate on completion of the investigation may 

 show a somewhat larger figure than this. Even if the cost were 

 to be $1,100,000, it would still be exceedingly cheap storage, the 

 cost for 15,925,000,000 cubic feet being on this basis only $69.14 

 per million cubic feet stored. 



In order to appreciate fully the low cost of these reservoirs, it 

 may be mentioned that reservoirs for municipal water supplies 

 frequently cost from $5000 to $10,000 per million cubic feet 

 stored. In specially unfavorable cases the cost is even higher 

 than this— it may be as high as $12,000 to $15,000 per million 

 cubic feet stored. Small reservoirs sometimes cost from $6000 

 to $8000 per 1,000,000 gallons stored. 



The dam at Tumblehead falls would be located just below the 

 outlet of Brant lake, the elevation of the water surface of which 

 is 801 feet. The flow line of the proposed reservoir has been 

 placed at an elevation of 840 feet, thus giving a depth of 39 feet 

 over the surface of Brant lake, a depth of 33 feet over the sur- 

 face of Schroon lake, and a depth of 20 feet over Paradox lake. 

 With the reservoir full or nearly full, there would be continuous 

 navigation from the head of Brant lake to the head of Paradox 

 lake of about 35 miles. The villages of South Horicon, Barton- 

 ville, Starbuckville, and parts of Pottersville and Chester are 

 within the flow line of this reservoir. 



Indian lake is another large reservoir on the headwaters of 

 Hudson river, that has been described on a preceding page. 



Piseco lake is another large reservoir which may be con- 

 structed on the upper Hudson at low cost. It is estimated that 

 a storage of 1,725,000,000 cubic feet may be made at an expendi- 

 ture of $70,000, or at an average cost per million cubic feet 

 stored of $40. | T ^i^J 



