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Status: Unknown (It seems that most of it has been demolished)
Access to site: No
Grange Redoubt is the first of the two Twydall Redoubts, it was built in 1885.
Grange Redoubt is the most elusive of the forts in Medway. Here is the entrance to the land where the fort is believed to be. None of the locals seemed to know anything about it.