Each Bastille Day (July 14), the same thing happens. The day is shaken up. From 10 a.m., the traditional military parade on the Champs-Elysées and the firework let off from the Eiffel Tower.
Because of the parade, the traffic will be forbidden from 6:30 a.m. on a large perimeter from Porte Maillot to Bastille! Yes, we know, it is really big but the traffic should gradually resume throughout the day. Everywhere in Île de France, celebration areas will be secured by 11,000 policemen, especially near the Champ-de-Mars and the Concorde!
As a memo, from July 13 to July 15, 2017, you will not be allowed to park your car on a large perimeter around the Eiffel Tower (from Trocadéro to Ecole Militaire).
Bastille Day 2017 traffic restrictions
Préfecture de Police de Paris