The road measures 15.00 miles long and would take a car obeying speed limits 33 minutes to travel its length.
The B4591 is a B Road and is located in the Zone 4 Highways Region.
This is a true long-distance route, journeying through numerous towns like Abercarn, Cwmcarn, Cross Keys, Risca, Rogerstone, and NEWPORT.
The road is located entirely within Gwent.