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RAZEL-BEC has installed a new bridge between Avre and Saint-Cloud

During the night of 14 to 15 May the workers of the RAZEL-BEC IDF West branch installed the 24 metre long structure.
RAZEL-BEC has installed a new bridge between Avre and Saint-Cloud

Dans la nuit du 14 mai au 15 mai, les équipes de l'agence IDF Ouest de RAZEL-BEC ont posé l'ouvrage de 24 mètres

In 3 hours, during the night of 14 to 15 May the workers of the RAZEL-BEC IDF West branch installed the 24 metre long, 23 tonne structure over quai Marcel-Dassault using a 100 tonne mobile crane.

A successful operation for the project led by Eau de Paris.

The modification of the l'Avre bridge, which is a footbridge that crosses the Seine connecting Saint-Cloud to Bois de Boulogne and which includes a Ø 1,200 mm drinking water pipe, is part of the RD7 expansion project.

The RD7 will increase from 3 to 4 traffic lanes, include 2 cycle lanes and 2 pavements.

The original bridge, which was 12 metres long, was first dismantled. The new 24 metre long bridge was built in the workshop.

The work prior to installing the bridge consisted in reinforcing the abutment on the Seine side using a pier cap beam bearing on 10 micropiles. The beam is fastened to 7 Dywidag bars that cross the existing abutment horizontally from side to side. On the Saint-Cloud side, once the former abutment and 12 metre long existing structure had been demolished, a reinforced concrete L-shaped wall bearing on 6 micropiles had to be built. Once the supports were finished work began to install the new bridge.
Then the concrete slab of the bridge had to be cast and made leaktight.

The building work is due for completion by end June 2018 and the bridge is due to reopen to the public in September 2018.

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