abstract
| - Construction of the fort began in the summer of 1862, as a result of the discovery that the guns of Fort Pennsylvania (better-known as Fort Reno) and Fort DeRussy could not adequately cover the hilly terrain between Rock Creek and the Rockville Turnpike. To fix the situation, an intermediate fort was built to cover the dead ground. This fort would become known as Fort Kearny. Construction proceeded slowly, hampered by a lack of workers. In December, the 113th New York Volunteer Infantry Regiment was ordered to assist in the construction of the fort. Reports indicated that "of the 150 men that reported only 50 did any work." Despite setbacks like these, by Christmas 1862, reports discussed the disposition of newly built Fort Kearny and several supporting field batteries that were constructed in order to cover blind approaches to the fort. That report described Fort Kearny as "occupying an excellent position, [and] a necessary connecting link between Forts Pennsylvania and De Russy. It sees well the upper valley of Broad Branch, and crosses its fires with those of Forts Pennsylvania and De Russy and intermediate batteries upon the dangerous heights in front. It has a powerful armament, and is provided with ample magazines and bomb-proofs, and is well adapted to its location. A field battery, just across Broad Branch, has been built to sweep part of the ravine immediately in front of Fort Kearny; otherwise unseen." The battery, later known as Battery Rossell, provided space for eight field guns and a strong powder magazine. The battery was named in honor of Major Nathan B. Rossell of the 3rd U.S. Infantry, who was killed on June 27, 1862, at the Battle of Gaines' Mill. In 1864, the fort was garrisoned by two companies of the 7th New York Heavy Artillery regiment, commanded by Major E.A. Springsteed. A May 1864 report on the defenses of Washington counted 298 soldiers in the fort's complement and stated that the garrison was of full strength. Despite this fact, deficiencies were found in the capability of those soldiers, whose drill was recorded as "indifferent," and that "improvement [was] needed." In contrast, the physical properties of the fort were found to be fully capable. The same inspection found three 24-pounder siege guns, three 32-pounder barbette guns, one 5-inch siege howitzer, and three 4-inch rifled guns. In addition, the powder magazine was found to be "dry and in good order" and the ammunition as a whole, "[in]full supply and serviceable."
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