COST OF CONSTRUCTION. 
73 
Section 11 .—From the crossing of Rio Colorado to Soda Lake , 96.8 miles. 
GRADUATION, MASONRY, ETC. 
Earthwork, (grading,) 1,716,000 cubic yards, at 15 cents.... $257,400 
Earthwork, (embankment through sandy soil,) 700,000 cubic yards, 
at 25 cents... 175,000 
Rock-cutting, 60,000 cubic yards, at $1.. 60,000 
Masonry, 37,000 cubic yards, at $4. 148,000 
Bridges, 800 feet, at $40. 32,000 
Bridges, 600 feet, at $30 . 18,000 
690,400 
Add 100 per cent, for increase over eastern prices....... 690,400 
Amount for graduation, masonry, &c... 1,380,800 
SUPERSTRUCTURE. 
Cross-ties, for 96.8 miles, at $2,000 per mile. 193,600 
Railroad iron—75 lbs. per yard—delivered at Mojave village, on 
Rio Colorado, for single track and sidings, for 96.8 miles, 
14,055 tons, at $110 per ton. 1,556,090 
Transportation of same, 48 miles, at 5 cents per ton per mile. 33,732 
Wrought-iron chairs and spikes, for 96.8 miles, at $800 per mile... 77,440 
Distributing and placing cross-ties and rails, for 96.8 miles, at 
$1,500 per mile... 145,200 
Amount for superstructure 
2,006,062 
EQUIPMENT. 
Locomotives, 11, at $10,500... 115,500 
Passenger cars, 10, at 3,100. 31,000 
Baggage cars, 3, at 1,600..... 4,800 
Freight cars, 164, at 1,100... 180,400 
Engine-houses and passenger depots. 100,000 
Way stations for water and wood. 300,000 
Amount for equipment 
731,700 
4,118,562 
For engineering and contingencies, add 20 per cent. 823,712 
Amount.... 4,941,274 
. Average cost per mile... 51,057 
