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Rainbow Hydroelectric Facility, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT

description

Summary

Significance: It is significant for its association with the industrial development of Montana and the consolidation of most of Montana's electric industry into the Montana Power Company. The district is also associated with John D. Ryan, the promoter of hydroelectric development at Great Falls. The buildings are representative examples of design concepts of the period.

Survey number: HAER MT-95

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Tags

hydroelectric power plants great falls rainbow bank missouri river miles northeast great falls dam rainbow dam road cascade cascade county montana energy generation historic american engineering record photo rainbow hydroelectric facility ultra high resolution high resolution library of congress
date_range

Date

1969 - 1980
person

Contributors

Historic American Engineering Record, creator
place

Location

Great Falls ,  47.55335, -111.15864
create

Source

Library of Congress
link

Link

http://www.loc.gov/
copyright

Copyright info

No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. http://www.loc.gov/rr/print/res/114_habs.html

label_outline Explore Rainbow Hydroelectric Facility, Rainbow Dam Road, Hydroelectric Power Plants

Dams under construction. Watts Bar Dam, shown here under construction, has a semi-outdoors type powerhouse with an enormous gantry crane (to the right of the picture) for installation and removal of units. The project is further distinguished by a control building which is entirely removed from the hydro plant, being located some 120 feet higher on top of a steep cliff and with direct connection to the switchyard behind. The windowless left wing of the control building houses the control room; the tower-like structure in the back accomodates air conditioning, restrooms, etc. The glass wall, upper level, contains the reception room with a broad semi-circular overlook terrace, the story below the terrace devoted to offices

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Sanborn Fire Insurance Map from Great Falls, Strafford County, New Hampshire

Telluride Power Company, Olmsted Hydroelectric Plant, mouth of Provo River Canyon West of U.S. Route 189, Orem, Utah County, UT

Bishop Creek Hydroelectric System, Plant 2, Bishop Creek, Bishop, Inyo County, CA

Fort Benton Bridge, Spanning Missouri River, Fort Benton, Chouteau County, MT

Great Falls, Virginia, site of historic mill built by George Washington

Waverly Bridge, Spanning Missouri River at State Route 65, Waverly, Lafayette County, MO

Ryan Hydroelectric Facility, Ryan-to-Rainbow 100 kV Transmission Line, West bank of Missouri River, northeast of Great Falls, Great Falls, Cascade County, MT

Holter Hydroelectric Facility, House No. 1, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT

Nunn Hydroelectric Plant, On Madison River, Ennis, Madison County, MT

Topics

hydroelectric power plants great falls rainbow bank missouri river miles northeast great falls dam rainbow dam road cascade cascade county montana energy generation historic american engineering record photo rainbow hydroelectric facility ultra high resolution high resolution library of congress