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THE IRRIGATION AGE. 



A RECORD FOR SPEED 



ON A DAM AND POWER HOUSE BUILT FOR THE CHIPPEWA 



VALLEY LIGHT & POWER CO. ON THE RED CEDAR RIVER 



AT CEDAR FALLS, WISCONSIN 



Contract signed Feb. 1, 1910 



Superintendent arrived on the work 



Feb. 9, 1910 



Work begun Feb. 10, 1910 



Machinery for construction arrived 



Feb. 21, 1910 



Cofferdam begun Feb. 25, 1910 



First concrete laid Apr. 19, 1910 



First section completed and River 

 turned June 13, 1910 



Superintendent left work Sept. 20, 1910 



Dam completed by Assistant Super- 

 intendent Nov. 1, 1910 



9 months after signing contract 



Current turned on Dec. 1, 1910 



Working force disbanded Dec. 6, 1910 



Current furnished to customers 



Dec. 15, 1910 



10 months and 15 days after signing 

 contract. 



Yardage Rock Excavation 



12,326 cu. yds. 



Yardage Concrete .... 16,353 cu. yds. 

 Number of Units in Power House, 



4 with 2 Exciters. 

 H. P. of each unit 3600 under 48' head 



Length of dam, including Power 

 House 500' 



Height of dam above river bed. . . 55' 



Height from bottom of wheel pit to 

 roof of Power House 61' 



Available Head created . .51' 



Respectfully submitted. 



AMBURSEN HYDRAULIC CONSTRUCTION CO. 



Engineer-Constructors 



88 Pearl Street, Boston, Mass. 



All inquiries from Canada should be addressed to 



Ambursen Hydraulic Construction Co. of Canada, Ltd. 405 Dorchester Street, West, Montreal, P. Q. 



When writing to advertisers please mention The Irrigation Age. 



