vM 
COST OF CONSTRUCTION, 63 
track ; and the full equipment is diminished tó a proportion which is esteemed sufficient for the 
required service of the road. Another element of this reduction is founded upon the idea, that, 
the line having been decided upon, the country will be opened to settlers, who, occupying a 
great portion of the arable valleys upon the route, will be able to furnish much of the subsistence 
necessary for the laborers, and, in various ways, may aid in the construction of the road. 
The various items of the estimate are, however, founded upon actual computation, as far as 
the details of the survey would admit; and where explicit data were wanting, all the known 
circumstences of the case have been weighed, and every doubtful point taken into consideration, 
in order that the amounts stated may not fall short of the necessary expense. Over the most 
difficult parts of the line, elaborated profiles, upon the horizontal scale of 441,;—the vertical 
being exaggerated 50 times—have given facilities for an approximate computation of the cutting 
and filling that would be required ; and in the determination of the earthwork, masonry, &c., 
for a considerable portion of the work, I would acknowledge the valuable assistance received 
from Albert H. Campbell, esq., civil engineer. 
ESTIMATE. 
Section 1.— From Fort Smith to the head of Pajarito creek, 106 miles. 
GRADUATION, MASONRY, ETC. 
Earthwork, 13,012,124 cubic yards, at 15 cents $1,951,819 
Rock-cutting, 305,793 cubic yards, at $1 305,793 
Masonry, 175,809 cubic yards, at $4 703,236 
Bridging, 4,960 feet, at $30 148,800 
Grubbing and clearing, 350 miles, at $200 70,000 
Ballasting, 350 miles, at $1,000 350,000 
3,529,648 
Add 50 per cent. for increase over eastern prices 1,764,824 
Amount for graduation, masonry, &c ] $5,294,472 
SUPERSTRUCTURE. 
Cross-ties for 706 miles, averaging $1,200 per mile 847,200 
Railroad iron—75 pounds per yard—delivered at Fort Smith, for 
single track and sidings for 706 miles, 102,511.2 tons, at $80 
per ton 8,200,896 
Transportation of same 353 miles, at 3 cents per ton per mile..... 1,085,594 
Wrought iron chairs and spikes for 706 miles, at $500 per mile... 353,000 
Distributing and placing iron and cross-ties, 706 miles, at $1,000 
per mile 106,000 
Amount for superstructure........ 11,192,690 
EQUIPMENT. 
Locomotives, 80, at $10,000 800,000 - 
Passenger cars, 70, at $3,000 210,000 
Baggage cars, 25, at $1,500 37,500 
Freight cars, 1,200, at $1,000 1,200,000 
