TW-22 Detour Indicator Supplementary Signs consist of a directional arrow and symbol to advise the direction of a route around a road closure. TW-22 Supps are available in both Level 1 and Level 2/3 size. Used in conjunction with the TW-21 Detour Ahead Follow Signs.
Detour Symbols include: (Please specify at time of order):
- State highway route shield