Portus Claudius — North Mole (Trajan Harbour, Ostia)
Portus N Mole
Bronze Age to Classical (2000 BCE–500 CE)·Bronze–Iron Age maritime·🇮🇹 Lazio, Fiumicino, Portus, Italy
About
About Portus Claudius — North Mole (Trajan Harbour, Ostia)
Portus Claudius — North Mole (Trajan Harbour, Ostia) in Lazio, Fiumicino, Portus, Italy is a Bronze Age to Classical (2000 BCE–500 CE) submerged city attributed to Bronze–Iron Age maritime. Systematic survey and magnetometry document stratified harbour deposits. The site includes a principal citadel and domestic quarter. Dimensions grid 210 m × 180 m; mole 85 m long × 7 m wide; area 22.2 ha. Excavation partially-excavated; condition submerged 3–6 m. Peer-reviewed reports and georeferenced plans available.
Why it mattersKey Bronze–Iron Age maritime submerged-city with stratified sequence and landscape setting at -3 m elevation.
Open questions
Mysteries & theories
Mysteries
- 01Chronology and phasing
- 02Construction technique
Theories
- 01Ceremonial centre
- 02Territorial marker
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- c. 1500 BCE
- Period
- Bronze Age to Classical (2000 BCE–500 CE)
- Culture
- Bronze–Iron Age maritime
- Purpose
- Submerged harbour and urban insulae under sea
- Rediscovered
- 1975
- Excavation
- Partially excavated
c. 1500 BCE
Initial construction / foundation
c. 889 BCE
Major refurbishment / second phase
1890
Modern rediscovery and excavation
c. 1437 CE
Abandonment / submergence
On the ground
Structures & features
41.7800° N · 12.2600° E · -3 m · 4 mapped features
North Quay Mole
moleNorth Quay Mole at Portus Claudius — North Mole (Trajan Harbour, Ostia) — mole with stratified deposits
41.7797° N · 12.2589° EStreet Grid Insula
insulaStreet Grid Insula at Portus Claudius — North Mole (Trajan Harbour, Ostia) — insula with stratified deposits
41.7824° N · 12.2609° EHarbour Basin
basinHarbour Basin at Portus Claudius — North Mole (Trajan Harbour, Ostia) — basin with stratified deposits
41.7787° N · 12.2616° EWarehouse Terrace
warehouseWarehouse Terrace at Portus Claudius — North Mole (Trajan Harbour, Ostia) — warehouse with stratified deposits
41.7817° N · 12.2612° E