730 ECONOMICAL ASPECTS 



Grouping the above items under a more condensed form, we 

 have: 



Tailrace $0.456 



Buildings substructure 2 . 542 



Buildings superstructures 3 . 372 



Buildings inspection . 142 



Total equipment 15 . 074 



Cost per Kw. capacity $21 . 586 



In addition to this cost there is a certain proportion of the 

 temporary compressor plant, spur tracks, general tool and utility 

 equipment, etc., amounting to $1.178, which should be charged to 

 this power-plant construction, making the total cost of the power- 

 plant buildings and equipment $22,764 per kilowatt capacity. 



As the foregoing costs do not, in some instances, give the cost 

 of completed structure under the various headings, the following 

 table will supply the construction cost per kilowatt capacity of the 

 entire power production plant, including reservoirs, dams, all 

 hydraulic conduits, power plant and equipment, and including 

 temporary construction plant, such as compressor plants, water 

 system, spur tracks, etc. 



Per Kw. 



Mathis dams and reservoirs $17. 104 



Intake dam and bridge 4 . 660 



Intake 1 . 102 



Tunnel 12.379 



Forebay 2.395 



Penstock tunnels and portal . 694 



Penstocks and foundations 5 . 568 



Power plant and equipment 22 . 764 



Total construction cost power production 

 plant per kilowatt $66.666 



The following gives the percentage relation of various ex- 

 penses on the development as a whole, which might be applicable 

 to any other development, and therefore does not include the 

 cost of land or property expense: 



Per Cent. 



General construction expenditure 75 . 575 



General engineering expense 3 . 078 



General legal expense 1 . 891 



Interest, bonds and advances during construction. 11 .315 



General overhead expense 1 . 773 



General contract expense 6 . 368 



Total. . . 100.000 



