In fact, the Eiffel Tower closes early on the 14th -- because the fireworks are shot OFF of it that evening. It also closes a bit early the night before.
here's from the Tower's website (this is from 2015, but should be the same this year):
http://www.toureiffel.paris/preparer-sa-visite/se-rendre-a-la-tour-eiffel/278-feu-dartifice-du-14-juillet-2015.html
"En raison des festivités, les horaires d’accès de la tour Eiffel sont modifiés les 13 et 14 juillet :
- Lundi 13 juillet : fermeture des caisses à 22h, et fermeture de la Tour à 23h45.
- Mardi 14 juillet : fermeture des caisses à 12h30 et fermeture de la Tour à 14h00.
- Dès le 15 juillet, la tour Eiffel retrouve ses horaires habituels."
"Due to the festivities, the opening hours of the Eiffel Tower are modified on July 13 and 14:
- On July 13: The ticket offices close at 10 pm, and the tower closes at 11:45 pm.
- on July 14: The ticket offices close at 12:30 pm, and the tower closes at 2 pm.
As of July 15, the tower goes back to its regular hours."