Thabraca (Tabarka) – Numidian–Roman Double Harbour
Tabarka · Thabraca Island Harbour
Numidian to Genoese (c. 400 BCE – 1542 CE)·Numidian / Carthaginian / Roman / Genoese·🇹🇳 Jendouba Governorate, Tunisia
About
About Thabraca (Tabarka) – Numidian–Roman Double Harbour
Thabraca, Numidian then Roman double harbour on the island and mainland at Tabarka, preserves a Punic rock-cut channel, 60 m causeway trace at –0.5 m linking island to mainland, and submerged Roman quay on the island's south shore at –1 m. Métal excavations and Chelbi's underwater survey mapped ashlar quay blocks with lewis holes and fish-tank (cetaria) vivaria cut at sea level now drowned 0.5 m. Harbour mud in the mainland lagoon–marble-shipping basin contains 3rd c. BCE–5th c. CE Giallo Antico marble chips from Simitthus and Numidian pottery sealed under 1.5 m alluvium after Ghardimaou wadi shift. The island's Genoese fortress (1542) reuses Roman mole.
Why it mattersOnly Numidian marble harbour; ashlar quay and marble-chip harbour mud anchor Numidia–Rome trade and Jendouba sea-level.
Open questions
Mysteries & theories
Mysteries
- 01Whether causeway had Roman arch bridge section
- 02Extent of Punic vs. Numidian rock-cut channel
Theories
- 01Mainland lagoon basin siltation by 700 CE marked marble trade collapse and Arab harbour relocation
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. 400 BCE (Numidian harbour); Roman quay 1st c. CE
- Period
- Numidian to Genoese (c. 400 BCE – 1542 CE)
- Culture
- Numidian / Carthaginian / Roman / Genoese
- Purpose
- Giallo Antico marble export harbour – Simitthus quarries shipped via Tabarka; fish-salting port
- Abandoned
- c. 800 CE (wadi siltation and Arab shift to Tunis)
- Rediscovered
- 1889 Tissot; 1960s Cintas; 1995 Chelbi underwater quay mapping
- Excavation
- Submerged
c. 400 BCE
Numidian harbour island in use
1st c. CE
Roman ashlar quay and causeway rebuilt
1955
Cintas lagoon coring identifies marble-chip harbour mud
On the ground
Structures & features
36.9544° N · 8.7581° E · -1 m · 3 mapped features
Island South Quay
quay100 m Roman ashlar quay at –1 m – south shore of Tabarka island with lewis holes
36.9540° N · 8.7590° ESubmerged Causeway to Mainland
causeway60 m causeway trace at –0.5 m – rubble Punic–Roman link to mainland
36.9548° N · 8.7570° ECetaria Vivaria Fish Tanks
structureRock-cut fish tanks (cetariae) now drowned 0.5 m – southern island piscinae
36.9535° N · 8.7585° E