520 



FORESTRY AND IRRIGATION 



November 



bankments to protect tbem from ero- 

 sion by wind and rain. 



A field party is at work making 

 preliminary location of the third fifty 

 miles of the Interstate canal, and about 

 twenty-five miles were completed in 

 October. 



Gunnison 

 Tunnel 



On October 26th the 

 first of the concrete lin- 

 ing was placed in the 

 Gunnison tnuuel, Uncompahgre irri- 

 gation project, Colorado. Work was 



crete floor in the west end of the tunnel 

 is already completed. The concrete 

 plant promises to be a very economi- 

 cal one. Gravel is obtained on the top 

 of the hills surrounding the main 

 shaft, which is located 4,950 feet from 

 the west portal. The gravel beds con- 

 tain gravel and sand of excellent 

 quality in about the right proportion 

 for concrete, and the material is 

 handled only twice between the pit and 

 the well of the tunnel. 



Sage brush lands in Klamath Basin, Oregon, to be reclaimed under Klamath Project 



begun on this tunnel on January 11, 

 1905, and on the first of the present 

 month 16,788 feet had been excavated, 

 757 feet having been excavated during 

 < >ctober. The progress made the past 

 month is considered exceptionally 

 good when the character of the ma- 

 terial encountered is considered. 



Several hundred feet of the con- 



Plans are being prepared for an im- 

 proved form of drop for the South 

 Canal and for the headgates of the 

 Gunnison tunnel. All outside work 

 suffered considerably from the unpre- 

 cedented snow storms, and it is re- 

 ported that many thousands of dollars 

 worth of fruit which still remained on 

 the trees was ruined. 



