This article is about the Class III road numbered C22 maintained by DfI Roads. For other roads numbered C22, see C22.
The C22 is a C-shaped road on the eastern shores of Lough Neagh. It starts on the A52 just west of Dundesert Bridge and heads west, passing to the north of Crumlin which can be accessed via the C24 at the crossroads. This easterly section from the A52 to the C24 was formerly the B155. From the junction with the C24 the C22 crosses the Lisburn–Antrim railway line (currently disused) and continues west and upon reaching the Langford Lodge airfield on the banks of Lough Neagh, the road abruptly turns south and then east to terminate on the C21 just outside Crumlin.