Turret 17A (Welton East) became a Scheduled Ancient Monument on 14 July 1997.[9] The site was excavated in 1931 when a door was located in the southwest corner, the access ladder platform in the southeast and an additional platform in the northwest.[4][9] One of the finds discovered in 1931 was a whinstone ballista ball.[4] There are no visible surface remains, the site now lying beneath the B3618 Military Road.[9]
Location: 55.008688°N 1.911003°W