Project Description

Duncannon Fort is a star fort. Along the sides were guns facing upriver and downriver. On the west end were artillery batteries facing across the entire inlet.

The landward defences had an angled redan projecting from the centre of the front, a deep ditch and a medieval wall. Primitive caponiersprotect the ditch, and each counterscarp gallery had a sally port so that the garrison could enter the ditch without being seen.

A nearby hill, Windmill Hill, would offer a perfect site to bombard the fort. Recognising this, the English raised the east wall in 1606 to guard against this.[7]