Nuclear Accident at Three Mile Island

Dauphin County · dedicated 1999 · River Rd. (PA 441), S of Royalton (1 mile S of the main gate to Three Mile Island)

On March 28, 1979, and for several days thereafter -- as a result of technical malfunctions and human error -- Three Mile Island's Unit 2 Nuclear Generating Station was the scene of the nation's worst commercial nuclear accident. Radiation was released, a part of the nuclear core was damaged, and thousands of residents evacuated the area. Events here would cause basic changes throughout the world's nuclear power industry.

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under a mile from where William Gabby lived in the 1760s

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Nuclear Accident at Three Mile Island

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