Sign information
- Federal designation
- W21-6
- Category
- Temporary Traffic Control
- Device type
- Sign
- Shape
- Diamond / rectangle for plaque
- Background
- Orange
- MUTCD reference
- §6H.23 • Table 6H-1
- MUTCD reference
- Part 6; see sign-specific TTC provisions
Size / fabrication
- Conventional Road: 36 x 36 in.
- Freeway / Expressway: 48 x 48 in.
- Minimum: 30 x 30 in.
Reference: §6H.23 • Table 6H-1
FHWA Standard Highway Signs
Dimensioned layout
Drawing units: inches (in.) unless noted on the sheet.
Preparing layout…
Application & sources
Used in temporary traffic-control and work-zone applications when applicable.