|Distance:||0.4 miles (0.6 km)|
|Met (2000):||A3102, B3112, A350|
|Route outline (key)|
The B3104 was a short B road in Melksham's Town Centre. Starting on the A3102 the road ran south along the High Street, where the B3112 turned off at a roundabout along Spa Road to the A365, and then King Street and Semington Road. Until the Western Way Bypass was built this was the route of the A350 through the town.
The road was declassified in the 2000s.