Ouvrage Schoenenbourg

Ouvrage Schoenenbourg
Ouvrage Schoenenbourg
Part of Maginot Line
Northeast France
Ligne Maginot Schoenenbourg.jpg
Ammunition entrance, Block 7
Ouvrage Schoenenbourg is located in France
Shown within France
Coordinates 48°58′00″N 7°54′43″E / 48.96667°N 7.91194°E / 48.96667; 7.91194Coordinates: 48°58′00″N 7°54′43″E / 48.96667°N 7.91194°E / 48.96667; 7.91194
Built by CORF
Construction
materials
Concrete, steel, deep excavation
Current
condition
Preserved
Open to
the public
Yes
Controlled by France
Battles/wars Battle of France, Lorraine Campaign
Ouvrage Schoenenbourg
Type of work: Large artillery work (Gros ouvrage)
sector
└─sub-sector
Fortified Sector of Haguenau
└─Péchelbronn
Work number: O 800
Constructed: 1932
Regiment: 22nd Fortress Infantry Regiment (RIF), 156thPosition Artillery Regiment (RAP)
Number of blocks: 8
Strength: 17 officers, 490 enlisted
Localisation
Schoenenbourg carte.jpg
The main entrance of the Ouvrage Schoenenbourg today
View of the railway in the Ouvrage Schoenebourg

Ouvrage Schoenenbourg is a Maginot Line fortification. It is located on the territory of the communes of Hunspach, Schœnenbourg and Ingolsheim, in the French département of Bas-Rhin, forming part of the Fortified Sector of Haguenau, facing Germany. At the east end of the Alsace portion of the Maginot Line, its neighbor is the gros ouvrage Hochwald. It is the largest such fortification open to the public in Alsace. Officially recorded as an historical monument, it retains all its original structural elements. Schoenenbourg was heavily bombarded during the Battle of France in 1940, receiving more enemy ordnance than any other position in France, with no significant damage. In 1945, retreating German troops used explosives to destroy much of the ouvrage. After the war it was fully repaired and placed back into service as part of a program to use Maginot fortifications to resist a potential Warsaw Pact advance through Europe. By the 1970s the plan had lost favor and funding, and Schoenenboug was abandoned. In 1987 a local organization undertook Schoenenbourg's preservation, and today it is open to public visitation.

Contents

Design and construction

The site was surveyed by CORF (Commission d'Organisation des Régions Fortifiées), the Maginot Line's design and construction agency; Schoenenbourg was approved for construction in June 1931. The gros ouvrage[nb 1] was intended to receive an additional turret in a second phase of construction, never pursued. Schoenenbourg is arranged as a typical gros ouvrage, with separate entrances for munitions and personnel almost 1,000 metres (3,300 ft) behind the closely grouped main combat blocks. Schoenenbourg lacks the large "M1" central magazine characteristic of most gros ouvrages.[3] A total of 3,000 metres (9,800 ft) of galleries extend between 18 metres (59 ft) and 30 metres (98 ft) below the surface.[4]

Initial plans were on a smaller scale. The original 1929 proposal was for a petit ouvrage, six blocks armed with machine guns and 75mm guns. Blocks were added to the design until the gros ouvrage emerged. Costs in 1931 were estimated at 41.2 million francs. Construction uncovered difficulties with the foundations, resulting in the widespread use of piles under the blocks to stabilize their support, a unique solution in the Line. The major work was completed in 1935, and equipment and armament were fitted in 1936 and 1937. Final completion took place in 1938, marked by difficulties with drainage of water infiltration.[5]

Description

The work is composed of eight blocks, with six combat blocks including two casemate blocks, a personnel entrance block and an ammunition entrance block. Underground galleries connect the blocks, extending more than 1500 meters in length. The underground barracks and utility areas are located just inside the personnel entry. The ouvrage was served by electrified narrow-gauge (600mm) railways that branched from a line paralleling the front and connecting to supply depots. The rail lines ran directly into the munitions entry of the ouvrage and all the way out to the combat blocks.[6][3]

  • Block 1: Infantry casemate on two levels, with one twin machine gun/47mm anti-tank gun embrasure (JM/AC47), one flanking twin machine gun and two automatic rifle cloches (GFM), as well as an emergency exit. This block was particularly difficult to supply with ammunition, since it lacked a hoist, and all ordnance had to be carried by the troops.[7]
  • Block 2: Infantry block with one retractable twin machine gun turret and one GFM cloche. As with Block 1, no ammunition hoist was provided.[8]
  • Block 3: Artillery block with one retractable twin 75mm gun turret and one GFM cloche. The block had an ammunition hoist with a capacity of 2.5 tons.[9]
  • Block 4: Artillery block, identical to Block 3, with an additional observation cloche (VDP).[10]
  • Block 5: Artillery block with one retractable twin 81mm mortar turret, one GFM block and one grenade launcher cloche (LG) (never armed). The hoist capacity was 500 kg.[11]
  • Block 6: Infantry casemate, identical to Block 1, with a single GFM cloche.[12]
  • Block 7: Ammunition entry with two hoists of 5 and 2.5 ton capacity, two GFM cloches, three FM automatic rifle embrasures and one JM/AC47 embrasure. Radio communications were also available at this location.[13]
  • Block 8: Personnel entry with one GFM cloche, one LG cloche, one JM/AC47 embrasure and two FM automatic rifle embrasures. Due to explosive demolition by the Germans in 1944, the block was reconstructed in 1950.[14]

The generating plant comprised four Sulzer engines of 165 hp each.[3]

Casemates and shelters

A series of detached casemates and infantry shelters are in the vicinity of Schoenenbourg, including

  • Casemate de Breitenacker Nord: SIngle block with one JM/AC37 embrasure, one twin machine gun embrasure and a GFM cloche.
  • Casemate de Breitenacker Sud: SIngle block with one JM/AC37 embrasure, one twin machine gun embrasure and a GFM cloche. Breitenacker Nord and Sud are linked by an underground gallery.
  • Abri de Grasserloch: Subsurface abri-caverne[nb 2] with two GFM cloches.
  • Abri de Schoenenbourg: Surface abri with two GFM cloches.
  • Casemate d'Ingolscheim Ouest: SIngle block with one JM/AC37 embrasure, one twin machine gun embrasure and a GFM cloche.
  • Casemate d'Ingolscheim Est: SIngle block with one JM/AC37 embrasure, one twin machine gun embrasure and a GFM cloche.[3]

Manning

The 1939 manning of the ouvrage under the command of Commandant Reynier comprised 491 men and 17 officers of the 22nd Fortress Infantry Regiment and the 156th Position Artillery Regiment. The units were under the umbrella of the 5th Army, Army Group 2. Interval troops covering the areas between and outside the fortifications were assigned to the 16th and 70th Infantry Divisions, 12th Corps.[16][17] The nearby Casernement de Drachenbronn provided peacetime above-ground barracks and support services to Schoenenbourg and other positions in the area.[18][19]

History

See Fortified Sector of Haguenau for a broader discussion of the Haguenau sector of the Maginot Line.

1940

The fortification at Schoenenbourg is the one that saw the most combat between September 1939 and June 1940. Over this period, over 17,000 shells were fired from the fort, and it was itself the target of over 3000 shells and 160 bombs. Schoenenbourg was in action against the German 146th Infantry Division, which applied pressure along the Line.[20] On 19 June 1940, German Stukas attacked Schoenenbourg and other ouvrages, returning on the 20th and 21st. The attacks on the 21st were joined by a bombardment with 420 mm siege mortars, lasting three days. The bombardment cracked walls, but did not disable the position.[21] Schoenenbourg fired during this period in support of nearby casemates, not seriously affected by the bombardments. Shoenenbourg's turrets were retracted to receive the heavy shells, and raised during the lengthy reloading period for counterbattery fire. The inventory of German ordnance fired against Schoenenbourg was assessed after the armistice, and found to comprise 160 aerial bombs, 50 42cm shells, 33 28cm shells, and approximately 3000 smaller projectiles,[22] the most ammunition used against any fortification in France.[23] The final surrender of Schoenenbourg was effected on 1 July, 1940, in accordance with the terms of the Second Compiègne armistice.[24][4][25] Following the surrender Shoenenbourg was used as a backdrop for propaganda films and as an indoctrination center for Hitler Youth.[26]

1945

No fighting took place in the area of Schoenenbourg during the American advances of 1945, but the retreating Germans of the 245th Infantry Division caused extensive damage in March, using explosives to wreck the entrances and turrets, along with a number of nearby casemates. The U.S. 36th Infantry Division took possession of the damaged ouvrage on 20 March, 1945.[27][25]

Cold War

In the 1950s interest in the Maginot Line was renewed. In 1951, Lembach, Four-à-Chaux, Hochwald and Schoenenbourg were designated the Môle de Haguenau, a point of resistance against a potential invasion by forces of the Warsaw Pact. Lembach was repaired and put in a state of readiness in 1951-52. Wartime damage was repaired. The reconstructed entries took on a form that was modified from the original design, using the old foundations.[28] By the late 1950s interest in fixed fortifications was waning after France developed a nuclear deterrent. The money needed to maintain and upgrade the fortifications was diverted for the nuclear programs. Schoenenbourg was not manned or maintained after the early 1970s[29][25][30] The gallery system was used by the army for training until 2001, and the surface hosted three field emplacements for anti-aircraft missiles.[31]

Current condition

Cross-section of a 75mm combat block showing the operation of the turret

In 1987 the French Army allowed the Association des Amis de la Ligne Maginot d'Alsace (Alsace Association of Friends of the Maginot Line) to conduct tours of the fortification. From 1981 the group has worked to restore Schoenenbourg.[32] The information point for visitors is in Block 7, with self-guided tours.

The nearby Abri de Grasserloch may also be toured by prior arrangement. The Casemate d'Esch is operated by the same organization.[32][33] On 4 September 2001, Schoenenbourg was the first gros ouvrage to be sold by the Ministry of Defense to a local community.[34]

See also

Notes

  1. ^ English-language sources use the French term ouvrage as the preferred term for the Maginot positions, in preference to "fort", a term usually reserved for older fortifications with passive defensives in the form of walls and ditches.[1] The literal translation of ouvrage in the sense of a fortification in English is "work." A gros ouvrage is a large fortification with a significant artillery component, while a petit ouvrage is smaller, with lighter arms. [2]
  2. ^ An abri is an infantry shelter, sometimes underground or under earth cover. An abri in the main Maginot Line often closely resembles a casemate, but is more lightly armed and can hold more occupants.[15]

Source

References

  1. ^ Kaufmann 2006, p. 13
  2. ^ Kaufmann 2006, p. 20
  3. ^ a b c d Mary, Tome 3, p. 138
  4. ^ a b "The Fortress Schoenenbourg". Association des Amis de la Ligne Maginot d'Alsace. http://www.lignemaginot.com. Retrieved 12 June 2010. 
  5. ^ Burtscher, Jean-Louis. "Le Schoenenbourg avant 1940". Association des Amis de la Ligne Maginot d'Alsace. http://www.lignemaginot.com. Retrieved 12 June 2010. 
  6. ^ Mary, Tome 2, p. 53
  7. ^ Puelinckx, Jean; Aublet, Jean-Louis & Mainguin, Sylvie (2010). "Schoenenbourg (go du) Bloc 1" (in French). Index de la Ligne Maginot. fortiff.be. http://www.fortiff.be/maginot/index.php?p=4434. Retrieved 11 June 2010. 
  8. ^ Puelinckx, Jean; et al (2010). "Schoenenbourg (go du) Bloc 2" (in French). Index de la Ligne Maginot. fortiff.be. http://www.fortiff.be/maginot/index.php?p=4435. Retrieved 11 June 2010. 
  9. ^ Puelinckx, Jean; et al (2010). "Schoenenbourg (go du) Bloc 3" (in French). Index de la Ligne Maginot. fortiff.be. http://www.fortiff.be/maginot/index.php?p=4436. Retrieved 11 June 2010. 
  10. ^ Puelinckx, Jean; et al (2010). "Schoenenbourg (go du) Bloc 4" (in French). Index de la Ligne Maginot. fortiff.be. http://www.fortiff.be/maginot/index.php?p=4437. Retrieved 11 June 2010. 
  11. ^ Puelinckx, Jean; et al (2010). "Schoenenbourg (go du) Bloc 5" (in French). Index de la Ligne Maginot. fortiff.be. http://www.fortiff.be/maginot/index.php?p=4438. Retrieved 11 June 2010. 
  12. ^ Puelinckx, Jean; et al (2010). "Schoenenbourg (go du) Bloc 6" (in French). Index de la Ligne Maginot. fortiff.be. http://www.fortiff.be/maginot/index.php?p=4439. Retrieved 11 June 2010. 
  13. ^ Puelinckx, Jean; et al (2010). "Schoenenbourg (go du) Bloc 7" (in French). Index de la Ligne Maginot. fortiff.be. http://www.fortiff.be/maginot/index.php?p=4440. Retrieved 11 June 2010. 
  14. ^ Puelinckx, Jean; et al (2010). "Schoenenbourg (go du) Bloc 8" (in French). Index de la Ligne Maginot. fortiff.be. http://www.fortiff.be/maginot/index.php?p=4441. Retrieved 11 June 2010. 
  15. ^ Kaufmann 2006, p. 14
  16. ^ Mary, Tome 3, pp. 79, 122, 129, 138
  17. ^ Romanych, pp. 22–24
  18. ^ Mary, Tome 3, p. 125
  19. ^ Wahl, J.B.. "Festungsabschnitt Haguenau" (in German). darkplaces.org. http://www.darkplaces.org/Frankreich/WW2/Ligne_Maginot/SF_de_Haguenau/SF_de_Haguenau.html. Retrieved 11 June 2010. 
  20. ^ Mary, Tome 3, p. 201
  21. ^ Kaufmann 2006, p. 172
  22. ^ Mary, Tome 3, p. 220
  23. ^ Romanych, p. 80
  24. ^ Mary, Tome 3, p. 233
  25. ^ a b c "Le Schoenenbourg de 1940 à 1952". Association des Amis de la Ligne Maginot d'Alsace. http://www.lignemaginot.com. Retrieved 12 June 2010. 
  26. ^ Kaufmann 2011, p. 247
  27. ^ Mary, Tome 5, pp. 142–143
  28. ^ Mary, Tome 5, pp. 161-162
  29. ^ Mary, Tome 5, p. 173
  30. ^ "Le Schoenenbourg de 1952 à 1987". Association des Amis de la Ligne Maginot d'Alsace. http://www.lignemaginot.com. Retrieved 12 June 2010. 
  31. ^ Kaufmann 2011, p. 250
  32. ^ a b Kaufmann 2011, p. 251
  33. ^ "Le Schoenenbourg de 1988 à nos jours". Association des Amis de la Ligne Maginot d'Alsace. http://www.lignemaginot.com. Retrieved 12 June 2010. 
  34. ^ Burtscher, Jean-Louis. "04 septembre 2001 - La vente du Schoenenbourg". Association des Amis de la Ligne Maginot d'Alsace. http://www.lignemaginot.com. Retrieved 12 June 2010. 

Bibliography

  • Allcorn, William. The Maginot Line 1928-45. Oxford: Osprey Publishing, 2003. ISBN 1-84176-646-1
  • Kaufmann, J.E. and Kaufmann, H.W. Fortress France: The Maginot Line and French Defenses in World War II, Stackpole Books, 2006. ISBN 0-275-98345-5
  • Kaufmann, J.E., Kaufmann, H.W., Jancovič-Potočnik, A. and Lang, P. The Maginot Line: History and Guide, Pen and Sword, 2011. ISBN 978-1-84884-068-3
  • Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. Hommes et Ouvrages de la Ligne Maginot, Tome 1. Paris, Histoire & Collections, 2001. ISBN 2-908182-88-2 (French)
  • Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. Hommes et Ouvrages de la Ligne Maginot, Tome 2. Paris, Histoire & Collections, 2003. ISBN 2-908182-97-16 (French)
  • Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. Hommes et Ouvrages de la Ligne Maginot, Tome 3. Paris, Histoire & Collections, 2003. ISBN 2-913903-88-6 (French)
  • Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. Hommes et Ouvrages de la Ligne Maginot, Tome 5. Paris, Histoire & Collections, 2009. ISBN 978-2-35250-127-5 (French)

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