View source for DM Gosport

{{Short description|Defence munitions site}}
{{Coord|50.825026|-1.149150|display=title|region:GB}}	
{{Use dmy dates|date=August 2021}}

{{Infobox military installation
| name = DM Gosport
| ensign = 
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| native_name = 
| partof = <!-- for elements within a larger site -->
| location = [[Gosport]], [[Hampshire]], England
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| image = Target Dossier for Plymouth-Gosport, Hampshire, England - DPLA - 12b6422fdbe6a8dd5c67a0781f556242 (page 1).jpg
| alt = 
| caption = DM Gosport on a target dossier of the German [[Luftwaffe]], 1930s
| type = munitions site
| coordinates =
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| pushpin_map = United Kingdom Hampshire
| pushpin_mapsize = 
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| pushpin_map_caption = Location in Hampshire
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| ownership = [[Ministry of Defence (United Kingdom)|Ministry of Defence]] ([[Defence Equipment and Support]])
| operator = [[Royal Navy]] (1908-1997)<br>Ministry of Defence (Since 1997)
| controlledby = 
| open_to_public = 
| site_other_label = <
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| built = 
| used = 1855-1901 ([[Fort Elson|fort]])<br/>1908-1977 (satellite depots)<br/> 1977-present (primary depot)
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| height = <!-- height of tallest part, not above sea level -->
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| fate = <!--changed from demolished parameter-->
| condition = Operational
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'''Defence Munitions Gosport''' is a defence munitions site situated on the southwestern shores of [[Portsmouth]] harbour, southeast of [[Fareham]] in [[Hampshire]], England. The site occupies about 470 acres. Its facilities include two Integrated Weapon Complexes (IWCs), 24 processing rooms and 26 explosives stores. The site employs some 270 staff.<ref name=adelard>{{cite web|url=http://www.adelard.com/asce/user-group/6-Dec-2012/20121205-Adelard_ASCE_DMG_U.pdf|title=DM Gosport: ASCE Site Safety Case|publisher=[[Defence Equipment and Support]]|access-date=4 January 2015|archive-url=https://web.archive.org/web/20141111015625/http://www.adelard.com/asce/user-group/6-Dec-2012/20121205-Adelard_ASCE_DMG_U.pdf|archive-date=11 November 2014|url-status=dead}}</ref>

The site is often used to supply munitions for ships at [[HMNB Portsmouth]], which is on the other side of the harbour. Bedenham Pier, a jetty within the site, is used to unload munitions onto [[Lighter (barge)|lighter]]s, which carry munitions to the other side or the UHAF facility.<ref>{{Cite web|url=https://www.navylookout.com/arming-the-fleet-the-network-that-supplies-munitions-to-the-royal-navy/|title=Arming the fleet – the network that supplies munitions to the Royal Navy &#124; Navy Lookout|website=www.navylookout.com}}</ref><ref>{{Cite web|title=Bedenham Pier|url=https://www.constructex.co.uk/bedenham-pier|access-date=2021-08-12|website=Constructex|language=en}}</ref>

[[Fort Elson]] lies within the boundary of the establishment.<ref>{{Cite web|url=https://historicengland.org.uk/advice/heritage-at-risk/search-register/list-entry/46645|title=Fort Elson, RNAD, Military Road, Gosport - Gosport &#124; Historic England|website=historicengland.org.uk}}</ref>

==History==
===Origins (1855-1950)===
{{main|Fort Elson}}
Fort Elson was built on the site in 1855, to defend Gosport and Portsmouth amid [[Royal Commission on the Defence of the United Kingdom|fears of a French invasion]] at the time. As it was constructed before the Royal Commission of 1859, it is technically not a [[Palmerston fort]], although it served as the blueprint for the adjacent line of Palmerston forts which were constructed in the following years. Elson is the only fort within the boundaries of the modern munitions site, however. A French invasion never occurred, and so the forts never came into use for the intended purpose. Elson was disarmed from 1901.<ref>Solent Papers No.6: Fort Brockhurst and the Gomer-Elson Forts by David Moore {{ISBN|978-0-9548453-9-1}}</ref> Three satellite munitions depots (Elson, Frater and Bedenham) were constructed as individual installations on the site from 1908 until the early 1920s. These were intended to support the existing Navy arms depot at [[Priddy's Hard]] to the southeast. RNAD Bedenham stored explosives such as cordite, linked by a railway system from 1913 and a pier from 1915. Fort Elson and adjacent facilities were used for magazine storage from the early 1920s, with the structure still remaining on the site.

===1950 explosions===
On July 14, 1950, ammunition was being loaded onto a lighter at Bedenham Pier. At 18:45 an ammunition explosion occurred, which started a fire and exploded a second boat at 19:15. Around 1,000 tons of ammunition was detonated in the incident, although the quantity has been estimated to be as high as 5,000 tons.<ref>{{Cite web|title=1950 - Explosion at Bedenham|url=https://portsmouthdockyard.org.uk/timeline/details/1950-explosion-at-bedenham|url-status=live|access-date=2021-08-12|website=portsmouthdockyard.org.uk|archive-url=https://web.archive.org/web/20210127105004/https://portsmouthdockyard.org.uk/timeline/details/1950-explosion-at-bedenham |archive-date=27 January 2021 }}</ref> The pier was badly damaged, nine barges were sunk and property damage occurred in the wider district. The roof of [[Cams Hall]] was torn off, one mile away from the site of the explosions. The accident caused 19 injuries, 14 of which were civilians. Firefighters had the blaze under control by 22:30.<ref>{{Cite web|url=https://api.parliament.uk/historic-hansard/commons/1950/jul/19/explosion-portsmouth-harbour|title=EXPLOSION, PORTSMOUTH HARBOUR (Hansard, 19 July 1950)|website=api.parliament.uk}}</ref><ref>{{Cite web|url=https://www.portsmouth.co.uk/retro/huge-blast-gosport-naval-depot-blew-roof-fareham-mansion-retro-1308493|title=Huge blast at Gosport naval depot blew the roof off Fareham mansion: RETRO|website=www.portsmouth.co.uk}}</ref> 

At the time of the incident, sabotage was suspected due to several other incidents in the preceding months involving other vessels. This investigation would later include the unrelated [[explosion of the RFA Bedenham]], a ship docked in [[Gibraltar]] which exploded in early 1951. There was, however, no evidence of sabotage at Gosport that emerged after subsequent investigations.<ref>{{Cite web|url=https://www.theyworkforyou.com/debates/?id=1951-06-20a.500.10|title=Ammunition Explosions|website=TheyWorkForYou}}</ref>

===Later years under the Royal Navy (1950-1997)===
Bedenham received repairs after the disaster, and developed over time. It became a repair facility for [[guided missiles]] in the 1960s. In the mid-1970s it gained a pair of [[cruciform]] Integrated Weapons Complexes, in which missiles, torpedoes and other weapons were assembled and tested. The modern depot was formed in 1977 after Priddy's Hard was decommissioned, with the transfer completed in 1988. The move established the Royal Naval Armament Depot Gosport as a merger of the three smaller facilities. In 1997 RNAD Gosport was moved under the jurisdiction of the Ministry of Defence as DM Gosport.<ref>H.W. Semark (1997). ''The Royal Naval Armament Depots of Priddy's Hard, Elson, Frater and Bedenham (Gosport, Hampshire) 1768 to 1997''. Winchester: Hampshire County Council. (2nd Edition, 1998: {{ISBN|1-85975-132-6}}). Page 32.</ref>

==References==
{{reflist}}

{{Royal Navy shore establishments}}

[[Category:Ammunition dumps in England]]
[[Category:Gosport]]
[[Category:Installations of the Ministry of Defence (United Kingdom)]]
[[Category:Military in Hampshire]]