Warning · Diamond · MUTCD 11th edition

OM4-3 Object Marker Type 4 (red diamond)

OM4-3 Object Marker Type 4 (red diamond) sign from the MUTCD 11th edition: standard size (18" × 18"), with colors.

OM4-3
Drawn at 18" × 18"

01

Standard sizes

SizeRoad typeCorner radius
18" × 18"—1 1/2"

02

Colors

Background
Red

03

Standard reference

  • SHS 2024 sheet 3-246 (OM4-3); MUTCD 11th ed. Section 2C.63