The bridge is located over the River Towy at the western edge of Carmarthen junction, a triangular junction about 700 metres SW of Carmarthen railway station.
The bridge is a combination of a standard bridge with a bascule section on the right. Bascule is French for seesaw or balance. A bascule bridge is a moveable bridge with a counterweight to balance the span during its upward swing to give clearance for river traffic. This mechanism is no longer operational. The bridge is Grade 2 listed. This image is also available on my Photo4me site here.