Société

Deux mois de travaux sur la ligne SNCF Amiens-Paris, deux mois de retards

Par Thibault Maisonneuve, France Bleu Picardie lundi 23 septembre 2013 à 18:16

Le pont du Havre sur la commune de Saint Denis (93)
Le pont du Havre sur la commune de Saint Denis (93) © RFF/SNCF

Pendant deux mois, à compter de mardi 24 septembre jusqu'au 29 novembre, d’importants travaux de modernisation d’un pont ferroviaire ont lieu à la sortie de la gare Paris Nord. Situé sur la commune de Saint-Denis (93), le Pont du Havre sera reconstruit, ce qui va provoquer de grosses perturbations dans le trafic SNCF, jusqu'à 24 minutes de retards pour le train de 7H50 entre Amiens et Paris.

Ces travaux qui vont durer deux mois consistent à remplacer quatre des six tabliers du pont. Ils ont été programmés pour coïncider avec les travaux d’aménagement d'une future ligne du tramway qui passera en dessous.

Les nouveaux tabliers (130 tonnes chacun, 24 mètres de long) seront posés de nuit à l’aide de deux grues de plus de 700 tonnes. A la différence du pont actuel dont les voies sont posées directement sur les tabliers de métal , le nouveau pont comportera des voies ballastées qui permettront de réduire le bruit ferroviaire de près de 10 décibels .

Les travaux principaux se dérouleront pendant six week-ends , pendant lesquels la pose des nouveaux tabliers nécessitera de réduire le nombre de voies disponibles pour le passage des trains. En semaine, la vitesse des trains devra être réduite sur l’ouvrage d’art à 100, 60 voire à 40km/h certains jours pour permettre la stabilisation des nouvelles voies.

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Infographie : prévisions de trafic SNCF © Radio France
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Des travaux qui vont provoquer de gros retards entre St Quentin et Paris, Creil-Paris et Amiens-Paris explique Thierry Aelvoet, directeur de la communication de la SNCF Picardie

 

Thierry Aelvoet, directeur de la communication à la SNCF Picardie