Pont de Châtel-de-Neuvre
Coordinates: 46 ° 24 ′ 7 ″ N , 3 ° 19 ′ 4 ″ E
| Pont de Châtel-de-Neuvre | ||
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| use | Road bridge D 32 | |
| Crossing of | Allier | |
| place | Châtel-de-Neuvre | |
| construction | Reinforced concrete bridge | |
| Number of openings | three | |
| completion | 1874/1923/1947/1979 | |
| location | ||
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The Pont de Châtel-de-Neuvre is a road bridge over the Allier , near the village Châtel-de-Neuvre around 20 kilometers south of Moulins in Allier in the French region of Auvergne Rhône-Alpes .
It leads the départementale D32 over the Allier and connects Châtel-de-Neuvre with La Ferté-Hauterive and its former train station on the Paris – Marseille railway line and with Route nationale 7 .
Suspension Bridge (1874)
The first bridge at Châtel-de-Neuvre was a suspension bridge built by Marc Seguin in 1870 .
Freyssinet Arch Bridge (1923)
At the beginning of the 20th century, the suspension bridge was no longer sufficient to withstand the increased traffic loads. A new bridge was in prospect, but due to a lack of financial resources, it was not to be expected immediately, since the Pont du Veurdre, advertised in 1907, would exhaust the department's budget . However, a coincidence came to the rescue for both the department and the municipality. François Mercier, a building contractor interested in the construction of the Pont du Veurdre, was so impressed by a design of the Pont Boutiron that the young engineer Eugène Freyssinet had made himself that he offered the department the Pont du Veurdre at the estimated price of the stone arch bridge as well as the similar bridges at Boutiron and at Châtel-de-Neuvre to be executed according to the Freyssinet system.
The council of the department agreed. During the construction of the Pont du Veurdre, Freyssinet gained practical experience with the hitherto largely unknown creep and shrinkage of concrete and drew his lessons from it for the Pont Boutiron and the Pont de Châtel-de-Neuvre.
The construction of the Pont de Châtel-de-Neuvre began after the completion of the other two bridges in 1914 - and had to be stopped again because of the First World War .
The bridge built between 1919 and 1923 had three openings with very flat arches, just like the previous two other bridges. It is likely to have largely corresponded to the other bridges in terms of dimensions, as this was the basis of the agreement with the department, i.e. spans of 67 + 72 + 67 m, spanned by arches with an arrow ratio of 1/14 or 1/15 what was extremely flat for the concrete bridges of the time. In contrast to the previous bridges, the filigree truss-like triangular structures that were used as stands for the thin carriageway slab were now dissolved into narrow concrete walls, resulting in a three-cell box girder.
The Pont de Châtel-de-Neuvre was blown up during the Second World War in 1940 to stop the advance of German troops.
Pont d'Arromanches (1947)
During and immediately after the war they had to make do with a ferry. In 1947 a so-called Pont d'Arromanches was built from nine whale pier bridge elements of the Mulberry harbor off Arromanches-les-Bains in Normandy . This temporary solution lasted around 30 years until the current bridge was opened.
Prestressed concrete bridge (1979)
The current bridge with two lanes and a very narrow walkway on both sides was opened in 1979. The haunched prestressed concrete bridge has a flat arch over the main opening and two half arches protruding from the pillars to the abutments .
Web links
- Photo of the arched bridge at Freyssinet on musee-batiment.planet-allier.com
Individual evidence
- ↑ Pont de Chatel-de-Neuvre - 1870 on Art-et-Histoire.com
- ↑ The hollow box construction of the bridge can be seen in the photo of the blown bridge: Destruction du Pont de l'Allier à Châtel de Neuvre. On the website of the Association Nationale des Anciens Combattants et Ami (e) s de la Résistance, Comité de l'Allier
- ↑ a b Destruction du Pont de l'Allier in Châtel de Neuvre. On the website of the Association Nationale des Anciens Combattants et Ami (e) s de la Résistance, Comité de l'Allier
- ↑ Google Street View