In the first half of the fourteenth century, a system of city defenses—consisting of a city wall and a moat—was constructed in Zaltbommel. Bommel formerly had five city gates: the Gamerschepoort, the Bosschepoort, the Oenselsepoort, the Steigerpoort, and the Waterpoort, the last of which is the only one still standing. The Waterpoort was restored in 1942–1943, acquiring its current appearance (without a layer of plaster). The reason the gate was preserved is not easily explained, but it may be linked to the fact that occupied houses had been built against its inner side.