The Fort in the Botshol is the only Defence Line fort whose defensible earthwork from 1895 has been preserved. The soggy peat soil around Amsterdam made it necessary to first strengthen the terrain with large amounts of sand. Also unique is the bridge behind the fort watchman's house, whose centre piece could be removed in times of danger.
The Fort in the Botshol defended the accesses formed by the south quay of the Botshol and the permanently dry strips of land in the Noorder-Zuiderpolder.
The Fort in the Botshol lies in a rich nature reserve and is only open during Stellingmaand (Defence Line Month) in September.