COST OF HYDRO-ELECTRIC POWER PLANTS 



721 



$397,334.00 

 17,214.00 

 40,000.00 

 55,4.52.00 



12,500.00 



25,000.00 



600.00 



400.00 



325,000.00 

 44,000.00 



9,000 . 00 

 12,000.00 



35,750.00 

 20,790.00 



$510,000.00 



38,500.00 



369,000.00 



WHITE HORSE RAPIDS POWER SITE 



Estimate of Cost: 



Power head 138 feet 



Flow used for estimate 3,700 c. f. s. 



Brake horse-power (80 per cent eff.) 47,200 (35,100 Kw.) 



Dam: 



Total height, 122 feet; total length of crest, 440 

 feet; length of spillway, 160 feet. 



Masonry, 56,762 cubic yards, at $7.00 



Excavation, 13,771 cubic yards, at $1.25 



Cofferdam 



Incidentals and special foundation contingencies. 



Forebay, etc.: 



Excavation, 10,000 cubic yards, at $1.25 



Concrete walls, 2500 cubic yards, at $10.00 



Trash racks, 120,000 pounds steel, at 5c 



Stop logs 



Diversion line: 



Canal excavation, 260,000 cubic yards, at $1.25. . . 

 Canal lining, 4400 cubic yards, at $10.00 



Headgates, penstocks, etc.: 



10 sliding headgates, set in place, at $900.00 



10 hydraulic relief valves, in place, at $1,200.00 . . . 

 1100 feet A-inch steel penstock, 11 feet diameter, 



500 pounds per foot at 6Jc., $32.50 



600 feet J-inch steel penstock, 10 feet diameter, 



495 pounds per foot at 7c., per foot $34.65 



Power-house and draft tubes: 



Power-house, reinforced concrete, 35,100 Kw., at 

 $5.00 per Kw. (made the same as Frieda) 



Summation $1,171,040.00 



Engineering and contingencies, 25 per cent 292,760 .00 



Interest during construction, | of 2 years, 4 per 



cent approx 60,200 . 00 



$1,524,000.00 

 Hydro-electrical machinery: 



10 horizontal water wheel units, in place, 4720 H.P., 



speed 450, at $22,000 220,000 .00 



10 3500 Kw. generators, 450 R.P. M., at $5.00 . . . 175,000.00 

 Exciter turbines and exciters, in place, at 80c. per 



Kw 28,080.00 



Transformers, at $4.00 per Kw 140,400 .00 



Switchboard and accessories, cables, etc., at $2.25 



per Kw 78,975.00 



Traveling crane, 40-ton 15,000 .00 



Quarters, water supply, etc 20,000 .00 



Summation $677,455 .00 



Engineering and contingencies, 20 per cent 135,491 .00 



Interest during construction, 20 per cent approx. . . 16,054 .00 



829,000.00 



Railway realigned, 9 miles, at $50,000 .00 450,000 .00 



Total construction cost $2,803,000 . 00 



Total amount of power, E.H.P., 47,200. 



Construction cost, per E.H.P 59.38 



Assumed right of way cost, per E.H.P 5 .00 



77,540.00 



176,000.00 176.000.00 



Cost of development per E.H.P. 



$64 . 38 



