70 COST OF CONSTRUCTION 
Section 8.—From Aztec Pass to Cross mountain, 23.3 miles. 
GRADUATION, MASONRY, ETC. 
Earthwork, 582,000 cubic yards, at 15 cents $87,300 
Rock-cutting, 46,200 cubic yards, at $1 46,200 
Masonry, 5,825 cubic yards, at $4 23,300 
Bridging, 233 feet, at $30 6,990 
Grubbing and clearing, 10 miles, at $200 2,000 
Ballasting, 10 miles, at $1,000 10,000 
175,790 
Add 100 per cent. for increase over eastern prices 175,790 
Amount for graduation, masonry, &c....... $351,580 
SUPERSTRUCTURE. 
Cross-ties, for 23.3 miles, at $1,500 per mile 34,950 
Railroad iron—75 pounds per yard—delivered at Mojave village, 
on Rio Colorado, for single track and sidings, for 23.3 miles, 
3,383.2 tons, at $110 per ton 312,152 
Transportation of same, 93 miles, at 5 cents per ton per mile.... 15,132 
Wrought-iron chairs and spikes, for 23.3 miles, at $800 per mile 18,640 
Distributing and placing cross-ties and iron, 23.3 miles, at $1,500 
per mile 34,950 
Amount for superstruct 416,424 
EQUIPMENT. 
+ ^ Locomotives, 3, at $10,500 31,500 
Passenger cars, 2, at $3,100 6,200 
Baggage cars, 1, at $1,600 1,600 
Freight cars, 40, at 1,100 44,000 
Engine-houses and passenger depots 20,000 
Way stations for water and wood 10,000 
Amount for equip t 113,300 
941,304 
For engineering and contingencies, add 10 per cent 94,130 
Amount 1,035,434 
Average cost per mile 44,435 
