202 MULTIPLE PURPOSE RIVER DEVELOPMENT 



Oregon stream is formed by its Coast Fork and Middle Fork which 

 join in the vicinity of Springfield, Oregon — some 188 river miles 

 above the confluence of the Willamette and Columbia rivers at 

 Portland. (See Figure 17.) The major tributaries which feed into 

 the Willamette rise in the Cascade Range at elevations that in 

 some cases exceed 6,000 feet. Among the major tributaries, the 

 McKenzie, draining approximately 1,300 square miles, and the 

 Santiam, servicing a watershed of about 1,800 square miles, are 

 among the most important. 



The comprehensive plan of development prepared by the U. S. 

 Corps of Engineers involves nearly three million acre-feet of storage 

 distributed among twenty reservoir sites, as shown in Table 35. Of 

 the approximately 800,000 acre-feet of power and joint storage, 

 395,300 would be available for power primarily, while 423,000 

 would serve jointly the purposes of flood control, power, and con- 

 servation. The storage thus provided will justify the installation 

 of power in the amount of approximately 387,000 kilowatts dis- 

 tributed among the reservoirs as indicated in Table 36. 



TABLE 36. Proposed Power Installations, Willamette River Sub-Basin 



Installed capacity 

 Reservoir site (kilowatts) 



Middle Fork, Willamette: 



Hills Creek 20,000 



Waldo Lake " — 



Meridian 115,000 



Dexter " 15,000 



McKenzie River: 



Cougar 25,000 



Middle Santiam River: 



Green Peter 81 ,000 



White Bridge " 15,000 



North Santiam: 



Detroit 100,000 



Big Cliff " 16,000 



Total 387,000 



Source: House Document 531, op. cit.. Vol. I, Table IV-54, p. 246. 



* Holdover storage project without power installation. 

 •^ Re-regulating reservoir with power installation. 



