Road May Flood Sign - W8-18
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Choose Your Reflectivity Grade
Compare visibility, durability, and ideal applications
Engineering Grade
Ideal Use
Parking lots
Brightness
General Lifespan
7 years
Night-time Visibility
500 feet away
High Intensity Prismatic
Ideal Use
Roadways
Brightness
General Lifespan
10 years
Night-time Visibility
1000 feet away
Diamond Grade
Ideal Use
High-speed roadways
Brightness
General Lifespan
10+ years
Night-time Visibility
1500 feet away
Product Details
Road May Flood Sign - W8-18
This highly visible warning sign alerts drivers to potential flooding hazards on roadways, helping to prevent dangerous driving conditions. Constructed with premium reflective sheeting on durable aluminum, the sign features radius corners and 3/8" prepunched holes for easy mounting. Engineered to meet both state and federal Department of Transportation (DOT) standards, the Road May Flood (W8-18) sign conforms to the Manual on Uniform Traffic Control Devices (MUTCD) guidelines. Its high-intensity reflective material ensures maximum visibility during low-light conditions and adverse weather, providing critical safety information to motorists.
Sign Specifications
MUTCD Code
W8-18
Sign Type
Warning Sign
Shape
Diamond
Standard warning sign shape
Colors
Yellow background
Black legend
Compliance
MUTCD Compliant: This pavement condition warning sign meets federal standards per MUTCD Section 2C.27. Used to warn of road surface hazards.
| Size | Dimensions | Application |
|---|---|---|
| Minimum | 24x24" | Low-volume roads |
| StandardDefault | 36x36" | Conventional roads |
| Freeway | 48x48" | Freeways |
MUTCD Compliant
Federal standards
DOT Approved
State & Federal
ASTM D4956
Type III/IV/XI
10+ Years
Durability
Engineer Grade (EG)
Type: ASTM Type I
Lifespan: 5-7 years
Brightness: ~50 cd/lux/m²
Parking lots, low-speed areas, non-critical signage
High Intensity Prismatic (HIP)
Type: ASTM Type III/IV
Lifespan: 10 years
Brightness: ~360 cd/lux/m²
Traffic signs, work zones, roadways
Diamond Grade (DG3)
Type: ASTM Type XI
Lifespan: 10-12 years
Brightness: ~580 cd/lux/m²
Critical signs, freeways, overhead signs
Install in advance of surface condition hazard. Placement distance based on approach speed and stopping sight distance.
MUTCD Reference: Section 2C.27
Often Paired With
Signs commonly installed together per MUTCD guidelines
