OCR

Imperial Dam is of the slab-and-butress type with a total length of 3,475 feet. Maximum height is 67 feet. The dam canals and desilting works required 55 control gates, four roller-types, 35 radial-type, and 16 fixed-wheel gates. Imperial was built for the Bureau of Reclamation 14 miles east of Yuma, Arizona, by Morris on-Knuds en as sponsor of the joint venture with Winston Brothers Co. and Utah. Approximate cost of the project was $6,306,000. Santeetlah Dam (Revisions) - This project was located in North Carolina and was finished in 1938. The owner of the project was the Carolina Aluminum Company (Alcoa) and they engineered the work also. It is an earthfill type dam with an approximate construction cost of $180,000. All American Canal - In connection with Imperial Dam on the Colorado River the constructing joint venture organization built the head works and unique desilting structures for the Ail-American Canal. At the damsite the Colorado is very wide and shallow and carries tremendous quantities of mud and silt. In order that the vital irrigation canal might function properly it was necessary to install this intricate system of structures designed to allow settlement of the silt from the irrigation water. Heart Mountain Water Tunnels in Wyoming for the U. S. Bureau of Reclamation in the amount of $895,000. Highway tunnel in Utah for Kennecott Copper Corporation in the amount of $1,208,500. Air Shaft and Entrance Slopes in Wyoming for the Union Pacific Coal Company in the amount of $311,000. Grading and Switchbacks for the Bingham and Garfield Railroad in Utah in the amount of $70,000. Lovelock Highway in Nevada for the Nevada Highway Department in the amount of $18,000. Overton-Lake Mead Highway in Nevada for the U. S, Bureau of Public Roads in the amount of $141,500.