Clawdd-du Bridge | |
|---|---|
 Mediaeval bridge over the Clawdd-du | |
| Coordinates | 51°48′25″N 2°43′18″W / 51.8070°N 2.7217°W |
| Crosses | dry bed |
| Locale | Monmouth, Wales |
| Location | |
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The Clawdd-du, also known in historical records as the Black Dyke, Black Ditch or Clawthy,[1] is a mediaeval linear defensive earthwork or moat, constructed as protection for the faubourg of Overmonnow, on the opposite side of the River Monnow from the town and castle of Monmouth, Wales.