The road measures 30.94 miles long and would take a car obeying speed limits 53 minutes to travel its length.
The B4355 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 Dolfor, Felindre, Beguildy, Dutlas, Lloyney, Heyope, Llanfairwaterdine, Knucklas, KNIGHTON, Rookery Lane, Rhos-y-Meirch, Norton, PRESTEIGNE, The Rodd, Roddhurst, Titley, Beechgrove, Rushock, KINGTON, and Sunset.
The road passes through several counties, including Powys, Shropshire, and Herefordshire.