Londonberry Township near Middletown in Dauphin County, Pennsylvania — The American Northeast (Mid-Atlantic)

Nuclear Accident at Three Mile Island

Photographed By Lora Mueller, circa January 9, 2009

1. Nuclear Accident at Three Mile Island Marker

Inscription. 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.

Erected 1999 by Pennsylvania Historical and Museum Commission.

Topics and series. This historical marker is listed in these topic lists: Environment • Industry & Commerce • Notable Events • Science & Medicine. In addition, it is included in the Pennsylvania Historical and Museum Commission series list. A significant historical date for this entry is March 28, 1979.

Location. 40° 9.183′ N, 76° 43.043′ W. Marker is near Middletown, Pennsylvania, in Dauphin County. It is in Londonberry Township. Marker is on River Road (Pennsylvania Route 441) south of Pecks Road, on the right when traveling north. Touch for map. Marker is at or near this postal address: 3140 River Rd, Middletown PA 17057, United States of America. Touch for directions.

Other nearby markers. At least 5 other markers are within 4 miles of this marker, measured as the crow flies. Goldsboro (approx. 1.8 miles away); Cly (approx. 2.1 miles away); The Swatara Ferry House

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(approx. 2.8 miles away); Alfred's Victorian Mansion (approx. 3 miles away); B'Nai Jacob Synagogue (approx. 3.2 miles away). Touch for a list and map of all markers in Middletown.

Also see . . .
1. Three Mile Island 1979 Emergency. Website devoted to the accident. (Submitted on March 21, 2007.)

2. Nuclear Accident at Three Mile Island - Behind the Marker. ExplorePAHistory.com (Submitted on July 19, 2011, by Mike Wintermantel of Pittsburgh, Pennsylvania.)

3. YouTube: Three Mile Island Documentary: Nuclear Power's Promise and Peril | Retro Reort. This video can be found on the New York Times' channel. (Submitted on March 24, 2024, by Devry Becker Jones of Washington, District of Columbia.)

Photographed By Steve Fernie, May 6, 2000

2. Nuclear Accident at Three Mile Island Marker

Three Mile Island Nuclear Reactor image. Click for full size.

Photographed By Lora Wilson, October 22, 2014

3. Three Mile Island Nuclear Reactor

Credits. This page was last revised on March 24, 2024. It was originally submitted on March 21, 2007, by Steve Fernie of Arlington, Virginia. This page has been viewed 3,631 times since then and 257 times this year. It was the Marker of the Week April 21, 2024. Photos: 1. submitted on December 19, 2011, by Lora Wilson of Paw Paw, West Virginia. 2. submitted on March 21, 2007, by Steve Fernie of Arlington, Virginia. 3. submitted on April 19, 2022, by Lora Wilson of Paw Paw, West Virginia. • J. J. Prats was the editor who published this page.