Address & Contact
20 Casey St
East Arm NT 0822
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Established in 1941 the Quarantine Anti-Aircraft Battery Site is the only complete gun-site of its type within the
Darwin area. It is highly significant as it is of a design which was discontinued by the Defence Force in the mid 1940s and one which is unique to the Northern Territory. The present structures were built in September 1942 by the Civil Construction Corps and personnel of the 2nd and 14th HAA Batteries. The site was used to defend the South West section of
Darwin Harbour and was a backup for the Berrimah Station.
Local stone was used in the construction. The entry post was constructed solely of local stone with the remaining structures built of aggregate made from local stone.
The original structures consisted of four revetted emplacements, a central instrument
bunker, accomodation, administration hut, mess, kitchen and rifle range. The site comprised four 3.7" Heavy AA guns, a Bofors gun, a Vickers Predictor Mark IV, a Height and Range Finder Mark IV, Lewis Machine guns and Radar Equipment. During the Japanese raids on 22 February 1942 the guns maintained fire at the enemy with one heavy bomber being shot down.
Today the site consists of the revetted emplacements, the central
bunker and slabs where the administration, mess and kitchen buildings stood. The 3.7" guns were removed on 27 November 1944.