786 



NEW YORK STATE MUSEUM 



For the high level project, the estimated cost of a 21-foot chan- 

 nel is 1151,165,000. 



For the low level project, the estimated cost for a 21-foot chan- 

 nel is $152,843,000. 



St Lawrence-Champlain route. This route extends from the 

 foot of Lake Ontario to the lower end of the Oswego-Mohawk 

 route, at the mouth of the Normans kill, following the St Law- 

 rence river from Lake Ontario to Lake St Francis ; from Lake St 

 Francis to Lake Champlain; from Lake Champlain across the 

 divide between that lake and the Hudson river, and along the Hud- 



Earth section. 



Fig. 63 Major Symons's proposed Ship canal, Lake Erie to Hudson river. 



son river to the junction with the Oswego-Mohawk route below 

 Albany. 



The estimated cost for a 30-foot channel is $208,448,000, while 

 for a 21-foot channel the estimated cost is $142,075,000. 



The tidal portion of the Hudson river from the mouth of the 

 Norma ns kill to tidewater at New York would require some work 

 to be done, although for a 21-foot channel the river is mostly deep 

 enough. The work on this section below the Normans kill, for 

 a 30-foot channel, is estimated at $10,383,000 and for a 21-foot 

 channel at $4,1G0,000. 



The Board of Engineers also considered the intermediate chan- 

 nels of the lakes, as at the bead of Lake Erie, at Lake St Clair 

 and the St Clair flats, between Lakes Huron and Michigan, etc. 



