The main west caponier has suffered years of neglect resulting in extensive damage to its outer brickwork .
The mortar battery and the caponiers are mostly derelict and overgrown with extensive damage to the brickwork .
The main west caponier has suffered years of neglect resulting in extensive damage to damage 's outer brickwork .
The mortar battery and the caponiers are mostly derelict and overgrown with extensive damage to the brickwork .