Warning Signs

Warning Signs give motorists fair warning of what lies ahead. Every highway system has danger zones. Curves, intersections, railroad crossings, narrow bridges and no passing zones are all hazards for the motorist -- and these danger zones can be deadly.

Fatal accidents can be the result of inadequately marked hazardous roads. To help advert such tragedies, warning signs must be bright enough for clear visibility under all driving conditions, particularly at night. Sign angularity is critical. It means warning signs must be bright and visible even when misaligned or placed at high angles, on the left side or far off of the roadway.

Our warning signs meet all of these requirements. They are exceptionally bright and visible from wide viewing angles, across long distances and for many years of service.

All Warning Signs are made with 3M™ Scotchlite™ Reflective Sheeting in Engineer Grade, Hi-Intensity Prismatic, Diamond Grade, or Fluorescent Grade on Aluminum or as a Face Only.

View the 2009 MUTCD with Revision 1 & 2 for Warning Signs for more information.

For Temporary Signs view the 2009 MUTCD with Revision 1 & 2 for Temporary Traffic Control.

Sample Warning Signs are Shown Below:

W1-11L

Hairpin Curve Left
  • w1-11lw1-11l
Available Sizes
  • 30x30
  • 36x36
  • 48x48

W1-11R

Hairpin Curve Right
  • w1-11rw1-11r
Available Sizes
  • 30x30
  • 36x36
  • 48x48

W1-13L

Truck Rollover Left
  • w1-13lw1-13l
Available Sizes
  • 36x36
  • 48x48

W1-13R

Truck Rollover Right
  • w1-13rw1-13r
Available Sizes
  • 36x36
  • 48x48

W1-15L

270° Loop Left
  • w1-15lw1-15l
Available Sizes
  • 30x30
  • 36x36
  • 48x48

W1-15R

270° Loop Right
  • w1-15rw1-15r
Available Sizes
  • 30x30
  • 36x36
  • 48x48

W1-1aL

Left Turn Arrow With Advisory Speed
  • w1-1alw1-1al
Available Sizes
  • 36x36
  • 48x48

W1-1aR

Right Turn Arrow With Advisory Speed
  • w1-1arw1-1ar
Available Sizes
  • 36x36
  • 48x48

W1-1L

Left Turn Arrow
  • w1-1lw1-1l
Available Sizes
  • 18x18
  • 24x24
  • 30x30
  • 36x36
  • 48x48

*Also available with an orange background

W1-1R

Right Turn Arrow
  • w1-1rw1-1r
Available Sizes
  • 18x18
  • 24x24
  • 30x30
  • 36x36
  • 48x48

*Also available with an orange background

W1-2aL

Left Curve With Advisory Speed
  • w1-2alw1-2al
Available Sizes
  • 36x36
  • 48x48

*Also available with an orange background

W1-2aR

Right Curve With Advisory Speed
  • w1-2arw1-2ar
Available Sizes
  • 36x36
  • 48x48

*Also available with an orange background

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