The ouvrage covers the approach to the Fréjus Rail Tunnel and the N6 road.

"[10] Saint-Gobain had suffered little damage during the war and by the end of 1944 was partly repaired and placed into service.

Immediately after the war, the Maurienne region was regarded as an area of medium priority for restoration and reuse by the military.

However, by 1960, with France's acquisition of nuclear weapons, the cost and effectiveness of the Maginot system was called into question.

[11] Ouvrage Saint-Gobain is open for public visitation, maintained by the Association du Musée de la Traverse des Alpes.