We present a deep, low-frequency radio continuum study of the nearby Fanaroff-Riley class I (FR I) radio galaxy 3C 31 using a combination of LOw Frequency ARray (LOFAR; 30-85 and 115-178MHz), Very Large Array (VLA; 290-420MHz), Westerbork Synthesis Radio Telescope (WSRT; 609MHz) and Giant Metre Radio Telescope (GMRT; 615MHz) observations.