Themed TourThemed TourFranchissement de 14 voies d’autoroutes par le viaduc de la ligne 17
September 15 at 12am
+1Tremblay-en-France
Watch a metro viaduct get threaded across 14 lanes of highway: a rare chance to see massive infrastructure engineering up close. The Line 17 crossing is a genuine technical feat, and Société des grands projets is opening the site for two days only.
Engineering marvel showcase
Behind-the-scenes infrastructure
Metro construction milestone
Rare technical access
Tips
🦺hard hat site tour, dress practical
📅only Sept 15-16, no walk-ins
🍽️venue cafeteria has mixed reviews
Tuesday, September 15
Franchissement de 14 voies d’autoroutes par le viaduc de la ligne 17
September 15 at 12am
+1Tremblay-en-France
Themed TourThemed TourWatch a metro viaduct get threaded across 14 lanes of highway: a rare chance to see massive infrastructure engineering up close. The Line 17 crossing is a genuine technical feat, and Société des grands projets is opening the site for two days only.
Engineering marvel showcase
Behind-the-scenes infrastructure
Metro construction milestone
Rare technical access
Tips
🦺hard hat site tour, dress practical
📅only Sept 15-16, no walk-ins
🍽️venue cafeteria has mixed reviews
Tuesday, September 15
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