794 NEW YORK STATE MUSEUM 



cubic feet per see-ond has been assumed. Bringing these several 

 items of summit water supply together we have the following: 



Cubic feet per second 



1) Lockages 800 800 



2) Evaporation 5 to 10 



3) Percolation 75 to 100 



1) Leakage at gates, etc 60 to 80 



5) Power and electric lights 10 to 50 



6) Flushing out canal boats, barges and timber 



rafts 50 to 60 



7) Wastage at spillways 150 to 250 



Total 1,180 to 1,350 



8) Feeder losses 300 to 600 



Final total 1,180 to 1,950 



Proceeding on similar lines of discussion for water supply of 

 summit level for a 21-foot channel, it is concluded that from l'21o 

 to 1600 cubic feet per second would be required — or as a mean, 

 the quantity may be fixed upon as 1100 cubic feet per second, 

 including feeder losses. 



The water supply for a low-level ship canal may be fixed at 

 from 1000 to 1100 cubic feet per second, which could be furnished 

 from storage of Oneida lake. 



The deep waterways surveys were executed in 1898-99. 



The Canadian canaU. In discussing canal projects as applying 

 to the State of New York it ought not to be overlooked that 

 there is now a waterway 11 feet in depth through Canada, by 

 way of the Welland canal, connecting Lake Erie with Lake Ontario 

 and the several canals around the rapids of the St Lawrence 

 river, to tidewater at Quebec. These canals have been in exist- 

 ence a number of years, but they have never been in any sense 

 competitors of the New York canals, largely because the river 

 and Gulf of St Lawrence are a region of fogs, which necessarily 

 will always make the St Lawrence route an objectionable one. 

 The river St Lawrence must be thoroughly marked by light- 

 houses and buoys, and even after this is done there will remain 

 a thousand miles of difficult navigation from Montreal to the 

 open ocean. 



