Sign information
- Federal designation
- W8-18
- Category
- Warning
- Device type
- Sign
- Shape
- Diamond
- Background
- Yellow
- MUTCD reference
- §2C.34 • Table 2C-1
- MUTCD reference
- Chapter 2C; see sign-specific section
Size / fabrication
- Conventional — Single Lane: 36 x 36 in.
- Conventional — Multi-Lane: 36 x 36 in.
- Expressway: 36 x 36 in.
- Freeway: 48 x 48 in.
- Minimum: 24 x 24* in.
- Oversized: 48 x 48 in.
* See the cited MUTCD table note for the conditions that apply to this size.
Reference: §2C.34 • Table 2C-1
FHWA Standard Highway Signs
Dimensioned layout
Drawing units: inches (in.) unless noted on the sheet.
Preparing layout…
Application & sources
Warns road users of the condition, alignment, crossing, or hazard named by the sign.