The casemate is in the town of Rœschwoog in France, behind the campsite, to the south of the railway.

The casemate is a simple flanking one, meaning that it has only one firing chamber which is directed towards the north.

It has an underground gallery connecting to its neighbour, the Casemate de Rountzenheim Nord.

The interior is organised on only one level, with: For its close defence, the casemate has two light machine guns of 7.5 mm and a GFM cloche.

One machine gun protects the entrance door, and the other is at the embrasure of the firing chamber and the diamant ditch.