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Sewall's Falls Hydroelectric Facility, East end of Second Street spanning Merrimack River, Concord, Merrimack County, NH

description

Summary

Significance: The dam in Concord, New Hampshire, was one of the longest timber crib dams in the eastern U.S. On September 29, 1893, this became the second commercial supplier of three-phase electric current in the U.S. The dam remained intact until 1984, at which time the mid-section washed away.

Unprocessed Field note material exists for this structure: N488

Survey number: HAER NH-20

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Tags

hydroelectric power plants dams east concord concord nh sewall falls east end second street merrimack merrimack river concord merrimack county new hampshire energy generation historic american engineering record photo sewall falls hydroelectric facility ultra high resolution high resolution library of congress
date_range

Date

1969 - 1980
person

Contributors

Historic American Engineering Record, creator
place

Location

East Concord (Concord, N.H.) ,  43.20814, -71.53757
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

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Topics

hydroelectric power plants dams east concord concord nh sewall falls east end second street merrimack merrimack river concord merrimack county new hampshire energy generation historic american engineering record photo sewall falls hydroelectric facility ultra high resolution high resolution library of congress