The medieval fortification from the early 14th century enclosed the entire, then only loosely populated village and consisted of a remarkably elaborate ring wall with a walkway, a moat, and impenetrable elm thicket ("Gebück"). A truly enchanted section has been preserved at the northern edge as the so-called Effengraben (Effe = elm). There, a section of the wall has been preserved to a height of up to 3 meters near the garden of the property at Obentrautstraße 3. Half-left from the location, the paved bridge still crosses an inconspicuous ditch of the once swiftly flowing watercourse here. The first of three fixed gates, the "Niederpforte," controlled access towards Selz/Ober-Ingelheim. The "Talpforte" and "Wasempforte" sealed off the pathways towards Mainz and Schwabenheim. In the 19th century, most of it was removed as a cheap quarry, and none of the three gates exist today. However, they were likely designed in a practical, plain Gothic style, similar to the structures that have been better preserved in Ober-Ingelheim.