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Writing Paris

Posted on May 1, 2025 at 5:54 p.m.

Of the maintenance work On a bridge in Noisy-le-Sec, in Seine-Saint-Denis, will cause the closure of the A3 to the province, between the Porte de Bagnolet and Bobigny, as well as the A86 Sens, in Rosny-sous-Bois, from 8 p.m. to 1 p.m., for three nights, announced the direction of the roads of Île-de-France on April 30, 2025.

The deviation routes recommended to users

The nights concerned are those from Friday 2 to Saturday May 3, 2025, from Saturday 3 to Sunday 4 May 2025 and from Saturday 10 to Sunday 11 May 2025.

For these three nights, the Dirif advises Alternative routes:

• From the Bagnolet door To reach the A3 in Aulnay-sous-Bois: take the outdoor boulevard peripheral Sens and take the A1 exit towards Lille/CDG and continue on the A1 then join the A3.
• From the A4/A86 in Saint-Mauriceto join the A3 in Aulnay-sous-Bois: take the A4 towards Paris/Porte de Bercy, the Boulevard peripheral Sens outside then take the A1 exit towards Lille/CDG and continue on the A1 then join the A3.

On the occasion of the last night impacted by the work, that from May 10 to 11, 2025, the A3 will be closed in the province-Paris direction Between Roissy and Rosny-sous-Bois.

The Dirif encourages “users from the A1/A3 to Roissy to join the Porte de Bagnolet” to continue on the A1 towards Paris/Saint-Denis, then to take the interior peripheral boulevard to the Porte de Bagnolet.

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