ESTIMATE OF COST OF ROAD. 145 



Depot in the vicinity of Great Falls of Missouri $200,000 



Depot in St. Mary s valley 50,000 



Depot near crossing of the Columbia 50,000 



Depot at Puget sound, with permanent works for a large travel 1,000,000 



Intermediate stations, with equipments for wood and water conduits and connex 

 ions with aqueduct 1,000,000 



3,000,000 



A detour by Cadotte s Pass would increase the distance some two or three miles, and the 

 tunnel about two miles ; the increased cost would be one and a half millions. 



The line of the Bitter Root would add to the expense as follows : 

 Increased length of line, all in difficult country, seven miles, at $100,000 per mile. $700,000 



The line from the forking of the two routes to Vancouver would cost as follows : 



From the forking of the routes to the Dalles, 133 miles, at $50,000 per mile $0,650,000 



From the Dalles to the plain near Vancouver, 90 miles, at $120,000 per mile 10,800,000 



Add for depot buildings at head of navigation of the Columbia, depots looking 



to a connexion with the Willamette and intermediate depots 250,000 



Total cost to Vancouver, 223 miles 17,700,000 



From the plain, near Vancouver, to Seattle, on Puget sound, 172 miles, at $40,000 



per mile 6,880,000 



Add for intermediate depots 150,000 



Total cost to Seattle, 395 miles 24,730,000 



GENERAL RECAPITULATION. 



Cost of road to Seattle by the Snoqualme Pass, using the long tunnel, 1,890 miles . $105,076,000 

 Cost of road to Seattle by the Columbia valley and the Cowlitz river, 2,045 



miles 112,121,000 



Cost of road to Vancouver, 1,873 miles 105,091,000 



Entire system, St. Paul to the Columbia, with branches down the Columbia and 

 across the Cascades, and a connexion from Seattle direct to the Columbia river, 



2,285 miles, at a cost of. 129,806,000 



To above add for engineering and contingencies 5,000,000 



19/ 



