The Roman Dam of Fonte Coberta is an archaeological site in São Sebastião, Lagos, Algarve, Portugal [1]. Built in the 1st century AD during Romanization of Hispania [1], the dam features a wall approximately 70 metres long and 2.6–2.7 metres thick [1]. It is a straight, rectangular-section wall constructed of homogeneous stone blocks mortared with opus caementicium [1]. The structure served as a reservoir for the surrounding Roman settlement.
Roman Dam of Fonte Coberta

| Type | Reservoir/aqueduct/canal |
|---|---|
| Period | 1 - 500 AD |
| Country | Portugal |
| Coordinates | 37.1029° N, 8.6728° W |
Portugal