page_title: Overmonnow
section_title: Clawdd-du
hierarchical_section_title: Overmonnow / Clawdd-du
caption_attribution_description: English: St Thomas the Martyr, Monmouth St Thomas the Martyr church is in Overmonnow beside the River Monnow which flows behind it.
context_page_description: Overmonnow is that part of the town of Monmouth, in Wales, which is located to the west of the River Monnow and the Monnow Bridge. It developed as a suburb of the town in the Middle Ages, when it was protected by a defensive ditch, the Clawdd-du or "Black Dyke", the remains of which are now protected as an ancient monument. In later centuries the area became known as "Little Monmouth" or "Cappers' Town". Development of the area has continued, particularly since the mid-twentieth century, and the area is now a ward of Monmouthshire County Council.
context_section_description: The Clawdd-du, or "Black Dyke", was a linear defensive earthwork or moat constructed as protection for the mediaeval suburb of Overmonnow.  It originally extended, roughly in a semi-circle, for some 600 yards (550 m) from the River Monnow opposite Chippenham Fields, westwards and then northwards to the vicinity of the later Drybridge House.  The defence comprised a water-filled ditch some 35 to 40 feet (10-12m) wide. It is now partly infilled, but still exists for most of its length as a broad ditch used for drainage.  It is a Scheduled Ancient Monument, and the remains of the mediaeval bridge across it are a Grade II* listed building.
caption: Church of St Thomas the Martyr
exif: {}