732 ECONOMICAL ASPECTS 



INTAKE DAM AND POWER-HOUSE 



Power-house superstructure, 2,200,000 cubic feet at 15c ........ $330,000 



Power-house, substructure, 2,000,000 cubic feet, at 17c .......... 340,000 



Intake house, superstructure, 750,000 cubic feet, at 15c ......... 113,000 



Intake house, substructure, 471,000 cubic feet, at 17c ........... 80,000 



Cranes and railroad track ................................... 15,000 



Turbines, erected, 9, at $51,000 .............................. 459,000 



Central lubrication system .................................. . 27,000 



Electrical units, 9, and switchboard etc., at $90,000 ............. 810,000 



Intake dam, cyclopean concrete, 107,700 cubic yards, at $4.50 *. 485,000 

 Excavation, intake dam, power-house, and tailrace, 475,000 cubic 



yards, at $2.50 ......................................... 1,187,500 



Penstocks, 10 erected, 1,350,000 pounds, at 8c ................. 108,000 



Rack bars, 10 sets, 9350 square feet, at $1.75 .................. 16,500 



Head gates, 2 .............................................. 5,000 



3 pumps and their motors, erected ............................ 20,000 



Force main, laid, 300,000 pounds, at 14c ...................... 42,000 



Shore wasteway ............................................ 25,000 



Road and branch railroad ................................... 100,000 



Total intake dam and power-house .................. $4,163,000 



NOTE. Prices marked thus (*) are reduced by reason of part cost being borne 

 by rock excavation. 



SUMMARY 



Spillway dam ............................................. $2,502,000 



Intake dam and power-house ............................... . 4,163,000 



Land and water rights ...................................... 1,500,000 



Engineering and contingencies ............ ................... 585,000 



Total ............................................... $8,750,000 



COST OF P0WER 



Estimate for 319.4 millions kilowatt-hours annual output, or 100,000 H.P. 



effective peak load. 



Operation: 



Administration and labor .................................. $60,000 



Maintenance and supplies ................................. 20,000 



$80 000 

 Depreciation, headworks and power-house: 



1 per cent on masonry ........................ $4,910,500 $49,105 



2 per cent on steel work ....................... 438,500 8,770 



3. per cent on machinery ....................... 1,316,000 39,480 



Fixed charges: *W * 97 ' 355 



Interest, 3 per cent, sinking fund 3 per cent, or 6 per cent on 



above $8,750,000. ... ................................... $525,000 



Total ............................................... $702,355 



Or 2.2 mills per kilowatt-hour of output. 



