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Dam Building
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http://www.nps.gov/ /archive/jofl/building.htm

Last Updated:
Tuesday, 03-Dec-2002 12:17:42 Eastern Standard Time




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Johnstown Flood NM




Cartoon of Diane at Work

Author:
Jason Earnest

Editor:
Diane Garcia

TIMELINE FOR DAM BUILDING

1831 Completion of the Pennsylvania Mainline Canal.
1834 Opening of the Allegheny Portage Railroad.
1839 Commonwealth of Pennsylvania starts to build a structure to dam the South Fork of the Little Conemaugh to be used in times of drought for the canal basin in Johnstown.
1853 The South Fork dam is completed after 14 years.
1854 The Pennsylvania Railroad completes the Horseshoe Curve, connecting Philadelphia with Pittsburgh by rail.
1857 The Commonwealth of Pennsylvania sells the Mainline Canal to the Pennsylvania Railroad.
1862 The South Fork dam gives way for the first time. The lake is allowed to drain.
1875 The Pennsylvania R. R. sells the property to John Reilly, a congressman from Altoona.
1879 John Reilly sells the property to the South Fork Fishing and Hunting Club and the task of repairing the dam is begun.
1881 The repairs to the dam are completed.
1889 The dam fails leading to one of the worst natural disasters in United States history.

Woodcut of Dam with Lake