Battery Kemble Park is a park in Northwest Washington D.C., administered by the National Park Service. Battery Kemble was a Union Army defensive site during the Civil War. The battery was located on Ridge Road (now Nebraska Avenue, NW), and included two 100-pound Parrott rifles, placed in such a way as to sweep Chain Bridge, Aqueduct Bridge, and Virginia beyond. Today, the parapet and gun positions are fairly well preserved and remain visible.