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Wat's Dyke: Section N & E of New Brighton is an early medieval linear earthwork in Wales, protected by Cadw as a scheduled monument. The dyke represents one of the major frontier defences constructed during the early medieval period, running across the landscape as a substantial bank and ditch. This section survives in the area north and east of New Brighton, where it remains a visible testimony to the territorial boundaries and military organisation of the period.
The monument sits upon bedrock of the Millstone Grit Group, composed of mudstone, siltstone and sandstone deposited during the Namurian epoch. This geology has influenced both the original construction and the long-term survival of the earthwork, as the underlying sandstones and siltstones provide a stable foundation whilst the mudstone elements affect drainage patterns across the site. The exposed rock faces visible in the dyke's profile reflect these geological layers.
As a linear earthwork, the dyke would have functioned as both a physical and symbolic barrier, its scale and labour-intensive construction indicating significant organisation and resources. The earthwork's preservation in this location demonstrates the enduring legibility of early medieval engineering across the Welsh landscape, maintaining its form despite more than a millennium of agricultural and natural processes.
Wat's Dyke: Section N & E of New Brighton is a scheduled monument protected by Cadw under reference FL085. View the official record →
Wat's Dyke: Section N & E of New Brighton is an early medieval linear earthwork in Wales, protected by Cadw as a scheduled monument. It is designated a Scheduled Ancient Monument by Cadw under reference FL085.
Wat's Dyke: Section N & E of New Brighton dates from the early medieval period, and is classified as a linear earthwork. It is one of over 32,000 scheduled monuments protected across the UK.
Wat's Dyke: Section N & E of New Brighton is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is FL085.
Several scheduled monuments lie within 10 km, including Carreg-y-llech standing stone (7.2 km), Bryntirion round barrow (7.4 km), Pen-y-stryt round barrow (7.8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Wat's Dyke: Section N & E of New Brighton's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Wat's Dyke: Section N & E of New Brighton stands on Millstone Grit Group [See Also Migr], bedrock that formed in the Namurian. The rock here is mudstone, siltstone and sandstone.