The road measures 14.62 miles long and would take a car obeying speed limits 26 minutes to travel its length.
The B4299 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 St. Clears, Meidrim, Penybont, Trelech, and Cynwyl Elfed.
The road is located entirely within Dyfed.