the landmine. Several other people survived injuries in this attack. The wrecked houses were later rebuilt in the same style. The Luftwaffe are believed to have targeted these areas of Tividale due to their proximity to the "Big Bertha" anti-aircraft gun which was located near City Road and had been erected at the beginning of the war in 1939 to tackle the impending threat of enemy bombers. On 21 December 1940, the Boat Inn on Dudley Road East was struck by a stray anti-aircraft shell from "Big Bertha", resulting in the deaths of 12 people who were attending a wedding reception there. A 15-year-old boy, along with his 26-year-old brother a 36-year-old woman, 28-year-old man, a married couple and a 38-year-old man died at the scene. A 16-year-old girl died just after arriving at hospital, as did a 19-year-old man. A 30-year-old woman died in hospital from her injuries the next day, and a 19-year-old woman died in hospital from her injuries two days later, as did a 20-year-old woman. A 20-year-old man in a neighbouring house was also injured as a result of the explosion and died in hospital the next day. The Boat Inn was rebuilt several years afterwards but demolished in 2004. A total of 27 people died as a result of air raids at Tividale during the Second World War, and dozens more were injured. The Netherton Tunnel runs under Tividale. Evidence of the tunnel is shown by the 'pepperpots' that can be seen near the site of the former Hangsmans Tree site and in Aston Road, Regent Road and Packwood Road on the Tividale Hall Estate. Several quarries on the edge of the Tividale area were a source of stone known as the 'Rowley Rag'. Turner's Hill is the site of the only remaining quarry. In 1966, most of Tividale became part of the Warley, although the section between Tividale Road and Burnt Tree was added to an expanded West Bromwich borough which took in the bulk of Tipton. Since 1974, it has been part of Sandwell Metropolitan Borough in the West Midlands county. The Oakham Green housing estate was built around Oakham Road and Darby's Hill Road in the late 1960s and early 1970s, with all of these houses being privately owned. Quarrying On the southern and eastern slopes of Turner's Hill, which straddles the border of Tividale and Rowley Regis, a huge quarry