Reverse curve sign
A yellow diamond with an S-shaped arrow. It warns of two curves ahead, the first bending one way and the second bending back.
How to read it
The MUTCD uses it where two curves in opposite directions are less than 600 feet apart, in place of two separate Curve signs. Florida's example curves right, then left. For two sharp turns, the Reverse Turn sign (W1-3) is used instead; for three or more curves, the Winding Road sign.
Rules vary by state and country. This explains the sign's standard meaning in the U.S. Manual on Uniform Traffic Control Devices; it isn't legal advice.
Read next
- Next in Road signsWinding road signA yellow diamond with a wavy line. It warns of three or more curves in a row ahead.
- The same shape in Army ranksFirst sergeant (E-8)Three chevrons above three arcs with a diamond between them are the insignia of a first sergeant (1SG), pay grade E-8 in the US Army and the senior NCO of a company.
More road signs
The same shape elsewhere
Browse symbols drawn with arrows, curves and waves or diamonds.
Sources
- MUTCD 2009 Edition, Chapter 2C: Warning Signs and Object Markers, MUTCD 2009, Part 2, U.S. Federal Highway Administration, Section 2C.07
- Pennsylvania Driver's Manual, Chapter 2: Signals, Signs and Pavement Markings, Pennsylvania Department of Transportation, p. 13
- Official Florida Driver License Handbook, rev. 08/2023, Florida Department of Highway Safety and Motor Vehicles, p. 50
Researched, edited and approved by Rory Hansen before publishing. Last reviewed September 25, 2026. How we research
Added .