Castra Othona

Castra Othona is a Roman coastal fort in Essex whose stone walls and foundations reveal the layout of barracks, storage areas, and defensive structures. The preserved remains allow visitors to understand the basic plan of a typical Roman military installation.

This installation was built in the 3rd century AD as part of the Saxon Shore defensive system against maritime raiders. It remained in operation until the Romans withdrew from Britain.

Artifacts found during excavations such as coins, pottery, and weapons reveal how soldiers lived their daily lives at this fort. These objects tell the story of the people who inhabited and defended this military post.

The site is accessible through marked pathways from Bradwell-on-Sea and features information panels at the ruins. Sturdy footwear is recommended since the ground is uneven and coastal weather can be changeable.

The fort sat at the mouth of the Blackwater River, where soldiers could monitor maritime traffic and secure supply routes across the North Sea. This strategic location made it an important checkpoint for Roman sea trade routes.

Location: Essex

Part of: Saxon Shore, Saxon Shore fort and Anglo-Saxon monastery at Bradwell-on-Sea

GPS coordinates: 51.73500,0.94000

Latest update: December 9, 2025 18:49