Hagley Museum near Wilmington in New Castle County, Delaware — The American Northeast (Mid-Atlantic)

Site O: Power Plant

Powder Yard Trail

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Site O: Power Plant Marker image. Click for full size.

Photographed By Devry Becker Jones (CC0), February 10, 2024

1. Site O: Power Plant Marker

Inscription. From 1884 until the powder mills closed in 1921, this building, and a now missing brick annex, housed three steam boilers and a Corliss steam engine. When water in the Brandywine was too low to operate the mills, the steam engine supplied power to machinery. Steam was piped to "Big Mary," a large glaze mill nearby, where black powder was tumbled and dried in steam-heated barrels. After the installation of dynamos in 1891, the Power Plant also generated electricity for the powder yards, prior to the construction of a hydroelectric plant.

Erected by Hagley Museum.

Topics. This historical marker is listed in this topic list: Industry & Commerce. A significant historical year for this entry is 1884.

Location. 39° 46.595′ N, 75° 34.579′ W. Marker is near Wilmington, Delaware, in New Castle County. It is in Hagley Museum. Marker is on Hagley Creek Road, 0.3 miles north of Stone Block Row, on the right when traveling south. Touch for map. Marker is at or near this postal address: 202 Hagley Creek Rd, Wilmington DE 19807, United States of America. Touch for directions.

Other nearby markers. At least 8 other markers are within walking distance of this marker. Industrial Power (within shouting distance of this marker); Brandywine River Powder Mills (within shouting distance of this marker); Transmitting Power With Line Shafts and Gears (about 300 feet away, measured in

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a direct line); Power of Powder / Press House Operations (about 500 feet away); Explosion of 1920 (about 500 feet away); Missile Map of January 2, 1920 Explosion (about 500 feet away); Workers' Housing Site (about 800 feet away); Gibbons House (approx. 0.2 miles away). Touch for a list and map of all markers in Wilmington.

Photographed By Devry Becker Jones (CC0), February 10, 2024

2. Site O: Power Plant Marker

Credits. This page was last revised on February 11, 2024. It was originally submitted on February 11, 2024, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 56 times since then. Photos: 1, 2. submitted on February 11, 2024, by Devry Becker Jones of Washington, District of Columbia.