HYDROLOGY OF NEW YORK 



783 



lock of 30.5 feet lift, and three double locks, of 30 feet lift, each. 

 The proposed harbor at Olcott is a widening of Eighteeninile 

 creek to the width of 400 feet from the last lock to the lake, 

 the entrance being protected by breakwaters. The estimated 

 cost of the Tonawanda-Olcott route for a 30-foot channel, with 

 Lake Erie regulated, is $75,572,000, and with standard low 

 water the estimated cost of a 30-foot channel is $77,221,000. 

 The estimate for a 21-foot channel, with Lake Erie regulated, 

 is |48,454,000, and with standard low water the estimated cost 

 for a 21-foot channel is $49,275,000. 



As to the relative value of these two routes, it is stated that 

 a steamship of 19 feet draft in the 21-foot channel would con- 

 sume one hour and nine minutes more time between Buffalo 

 and a point common to the two routes in Lake Ontario in trav- 



30 — * 30 



Fig. 01 Earth section of proposed 1500-ton Barge canal. 



ersing the Tonawanda-Olcott route than in Lasalle-Lewiston 

 route, and that in a 30-foot channel a steamship of 27 feet draft 

 would be one hour and forty-three minutes longer by the Tona- 

 wanda-Olcott route. The cost of maintenance of the Lasalle- 

 Lewiston route would be less than for the Tonawanda-Olcott 

 route. It is therefore evident that economy in original con- 

 struction, transportation and time of passage for ships deter- 

 mine the Lasalle-Lewiston route as preferable. 



Oswego-Mohawk route. From Lewiston vessels pass through 

 the deep lower Niagara river to the mouth at Queenstown, from 

 whence the route is by open water of Lake Ontario to Oswego, 

 112 miles, at which place the line leaves Lake Ontario from an 

 artificial harbor to be constructed about one mile west of Oswe- 

 go river. It then passes through the westerly limits of the 

 city of Oswego to a dam above Minetto, where the deep water- 

 way joins the river, 85.6 feet above Lake Ontario. This differ- 



