Irrigation and Hydro-electric Developments 

 plants is located on the Willamette River, at Oregon 

 City, where five units have been in service since 

 1894, seven since 1897, and two since 1903. The 

 combined generating capacity of these fourteen ma- 

 chines is 7230 kilowatts. Another hydro-electric 

 plant is at Cazadero, on the Glakamas River. The 

 installation is here for 14,250 kilowatts. The River 

 Mill plant is on the same river several miles farther 

 down stream and is notable for the fact that the 

 first hollow concrete dam of the Ambrusen tvpe on 

 the Pacific Coast was constructed here. The sta- 

 tion capacity is 9900 kilowatts. A fourth hydro- 

 electric plant is at Bull Run, about forty miles 

 from Portland. The capacity of this station is 

 11,250 kilowatts of hydro-electric power. 



REFERENCES 



ANON. 



1912. Development along Puget Sound. Electric World, vol. 



59, pp. 1161-1182, figs. 1-51. (Description of the sys- 

 tem of the Puget Sound Traction, Light & Power 

 Company on the Snoqualarie, Puyallup and White 

 rivers.) 

 EASTWOOD, J. S. 



1913. The new Big Bear Valley dam. Engineering News, 



vol. 70, pp. 1284-1290, figs. 1-7. (Description of a 

 dam of the multiple arch type.) 

 FINKLE, F. C. 



1909. Arrowhead hydraulic fill dam. Engineering Record, 



vol. 59, pp. 451-454, figs. 1-6. (Description of high- 

 est earth dam in the world.) 

 HALLORAN, A. H. 



1913. Portland Railway, Light and Power Company. Jour- 



nal Electricity, Power & Gas, vol. 30, pp. 1-21, illus. 

 (Detailed description of the several plants and sys- 

 tems of this company.) 

 HEINLY, B. A. 



1910. Carrying water through a desert; the story of the Los 



Angeles aqueduct. National Geographic Magazine, 

 vol. 21, pp. '568-596, illus. 



SMITH, C. W. 

 1910. Construction of the Roosevelt Dam; an account of the 

 difficulties encountered in constructing a high ma- 

 sonry dam in Arizona. Engineering Record, vol. 62, 

 pp. 756-762, illus. 



STEVENS, G. C. 



1910. Patterson Ranch. Irrigation by pumping on the Pat- 

 terson Ranch. Engineering Record, vol. 62, pp. 284- 

 286, illus. 



UHDEN, C. F. ' 



1914. System of Washington Water Power Company. Jour- 



nal Electricity, Power & Gas, vol. 33, pp. 213-224, 

 illus. (Description of entire system including Long 

 Lake development.) 

 VAN NORDEN, R. W. 



1910. Great Western Power Company's System. Journal 

 Electricity, Power & Gas, vol. 24, pp. 315-333, illus. 

 (Description of Big Bend installation and trans- 

 mission.) 



1913. Lake Spaulding-Drum power development. Journal 

 Electricity, Power & Gas, vol. 31, pp. 525-541, illus. 

 (Description of the largest Pacific Coast develop- 

 ment on a single watershed.) 



236 



