COST OF CONSTRUCTION. 
71 
Section 9 .—From Cross mountain to the crossing of Big Sandy, 27.5 miles. 
GRADUATION, MASONRY, ETC. 
Earthwork, 760,000 cubic yards, at 15 cents.. $114,000 
Rock-cutting, 425,000 cubic yards, at $1. 425,000 
Masonry, 8,250 cubic yards, at $4... 33,000 
Bridging, 550 feet, at $30. 16,500 
Grubbing and clearing, 25 miles, at $200 . 5,000 
Ballasting, 10 miles, at $1,000. 10,000 
603,500 
Add 100 per cent, for increase over eastern prices. 603,500 
Amount for graduation, masonry, &c... $1,207,000 
SUPERSTRUCTURE. 
Cross-ties, for 27.5 miles, at $1,800. 47,500 
Railroad iron—75 pounds per yard—delivered at Mojave village, 
on Rio Colorado, for single track and sidings, for 27.5 miles, 
3,993 tons, at $110. 439,230 
Transportation of same, 68 miles, at 5 cents per ton per mile. 13,576 
Wrouglit-iron cbairs and spikes, for 27.5 miles, at $800 per mile... 22,000 
Distributing and placing cross-ties and rails, 27.5 miles, at $1,500 41,250 
Amount for superstructure... 563,556 
EQUIPMENT. 
Locomotives, 3, at $10,500 ..... 31,500 
Passenger cars, 3, at $3,100... 9,300 
Baggage cars, 1, at $1,600 . 1,600 
Freight cars, 47, at $1,100. 51,700 
Engine-houses and passenger depots. 25,000 
Way stations for water and wood... 50,000 
Amount for equipment... 169,100 
1,939,656 
For engineering and contingencies, add 10 per cent. 193,966 
Amount. 2,133,622 
Average cost per mile. 77,583 
