A roughly 580m stretch of agger, running from west north-west to east north-east and crossing the Afon Grow. It is a section of the Roman road west of Carmarthen (NPRN 114111), and is continued by a parchmark extending the line about 50m to the east south-east. Overall it runs from SN20531717 to SN19911734.

The construction of the Whitland bypass enabled the excavation of a 100m stretch of the road. This produced radio-carbon dates of 370BC-AD75 & 200BC-AD135.

Sources: Page 1996 (Archaeology in Wales 36), 72-3.

J.Wiles, RCAHMW, 18 November 2003