Ancient Monuments

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Roman Water Tank east of Brunant Farm

A Scheduled Monument in Cynwyl Gaeo, Carmarthenshire (Sir Gaerfyrddin)

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Latitude: 52.055 / 52°3'18"N

Longitude: -3.9321 / 3°55'55"W

OS Eastings: 267619

OS Northings: 241389

OS Grid: SN676413

Mapcode National: GBR DY.DR9D

Mapcode Global: VH4H5.SLLZ

Entry Name: Roman Water Tank E of Brunant Farm

Scheduled Date: 20 October 1986

Source: Cadw

Source ID: 655

Cadw Legacy ID: CM237

Schedule Class: Water Supply and Drainage

Category: Water tank

Period: Roman

County: Carmarthenshire (Sir Gaerfyrddin)

Community: Cynwyl Gaeo

Traditional County: Carmarthenshire


The monument consists of the well preserved remains of a Roman water tank measuring 14m x 9m situated on the north facing slope of the Cothi valley above the Cothi aqueduct. It is fed by a stream in its SE corner which now flows out through a breach in the NW side. It presumably supplemented the water supply in the Cothi aqueduct below, though there is now no trace of any channels leading from it.

The monument is of national importance for its potential to enhance our knowledge of water management systems. 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.

Source: Cadw

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