Scheduled Monuments- Full Report
Summary Description of a Scheduled Monument
Reference Number
MM226
Name
Relict Seawall alongside Collister Pill Reen
Date of Designation
18/09/1995
Status
Designated
Location
Unitary Authority
Monmouthshire
Community
Magor with Undy
Easting
344600
Northing
186593
Broad Class
Maritime
Site Type
Seawall
Period
Medieval
Description
Summary Description and Reason for Designation
The following provides a general description of the Scheduled Ancient Monument.
The monument consists of a seawall running along the western side of Collister Pill Reen. This seawall was erected in the Middle Ages to enable the reclamation of the Gwent Levels in Undy parish and remained a sea defence until the enclosure of Caldicot Moor in 1850. The seawall is an earthen bank between 11m and 12m wide at the back and 5m wide on the top. It stands between 2m and 2.5m above the land to the west, but is almost level with the land on Caldicot Moor.
The monument is of national importance for its potential to enhance our knowledge of coastal defences. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structure itself may be expected to contain archaeological information concerning chronology and building techniques.
The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.