The road measures 5.77 miles long and would take a car obeying speed limits 9 minutes to travel its length.
The B4574 is a B Road and is located in the Zone 4 Highways Region.
The road passes through several towns, including Llanddewi Brefi, Devils Bridge, Cwmystwyth, and Pontrhydygroes.
The road is located entirely within Dyfed.