Fort Gregg (4)

 (1864-1865) - A Union U.S. Civil War Fort established in 1864 near Petersburg, Dinwiddie County, Virginia. Named Fort Gregg after 1st Lieutenant James Potter Gregg, 45th Pennsylvania Volunteer Infantry, who was killed at the Battle of Pegram’s Farm on 30 Sep 1864. Abandoned in 1865 at the end of the war. (Not to be confused with the Confederate Fort Gregg (1) or Confederate Fort Gregg (2))

History of Fort Gregg
Fort Gregg was established on 3 Oct 1864 and completed on 27 Oct 1864. Built as a six sided earthworks redoubt as a part of the Union seige line around Petersburg known as the "Fish Hook." Constructed with six positions for field mounted guns and a single magazine. The outer ditch perimeter was some 666' enclosing about 0.5 acres. The fort required about 312 labor days and was prescribed to garrison some 75 men and six gun crews.

Fort Gregg was the last fort on the western end of the "Fish Hook" connected by a line of entrenchments back to Fort Welch.

Current Status
Part of the Petersburg National Battlefield.

See Also:
 * Fort Welch
 * Fort Gregg (1)
 * Fort Gregg (2)
 * Civil War Defenses of Richmond and Petersburg

Sources:
 * NPS - Assessment of the Principal Earthworks Federal Fish Hook Line, Petersburg, Virginia, October 1998

Links:
 * North American Forts - Fort Gregg
 * Find A Grave - Lieutenant James Potter Gregg