This article is about the Class III road numbered C3-51 maintained by North Ayrshire Council. For other roads numbered C3, see C3.
The C3-51 starts on the C2-51, Caledonia Road and curves north west along Sorbie Road, although the first section appears to also be part of the C2-55. The C3-51 is then listed as turning north to reach the A738 north east of Ardrossan town centre. However, as this last section is also part of the B728 (not always shown on maps), the C3-51 is presumed to terminate at the junction with South Beach Road.