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  4. Type 3 Object Markers | OM3-L - OM3-L

Type 3 Object Markers | OM3-L - OM3-L

Type 3 Object Markers | OM3-L  - OM3-L
Min: 1 • Max: 1000
Unit Price:$0.00
Quantity:× 1
Total:$0.00

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Choose Your Reflectivity Grade

Compare visibility, durability, and ideal applications

Type I

Engineering Grade

Ideal Use

Parking lots

Brightness

Standard

General Lifespan

7 years

Night-time Visibility

500 feet away

Type IV

High Intensity Prismatic

Ideal Use

Roadways

Brightness

High

General Lifespan

10 years

Night-time Visibility

1000 feet away

Type IX

Diamond Grade

Ideal Use

High-speed roadways

Brightness

Maximum

General Lifespan

10+ years

Night-time Visibility

1500 feet away

Product Details

Type 3 Object Markers | OM3-L - OM3-L

Type 3 object markers provide critical roadway safety by alerting drivers to potential obstructions and hazards. Constructed from durable .080 aluminum with standard 3/8" mounting holes and radius corners, these markers meet both DOT and MUTCD state and federal guidelines for high visibility. Designed for marking obstructions adjacent to roadways, these high-intensity and diamond grade reflective markers ensure clear visibility during day and night conditions. When installed at guardrail approach ends, the markers feature alternating black and retroreflective yellow stripes sloping at a 45-degree angle, directing traffic safely around potential obstacles. The markers are strategically positioned so that the edge closest to the road user aligns precisely with the nearest edge of the obstruction.

Spec • 2026
MUTCD Compliant

Sign Specifications

MUTCD Code

OM3-L

Sign Type

Object Marker

Shape

Diamond

Standard warning sign shape

Colors

ABC

Yellow background

Black legend

Compliance

MUTCD Compliant: Type 3 Object Marker per Section 2C.65. Marks roadside obstructions.

SizeDimensionsApplication
StandardDefault12x36"Roadside obstructions
Compliance & Certifications

MUTCD Compliant

Federal standards

DOT Approved

State & Federal

ASTM D4956

Type III/IV/XI

10+ Years

Durability

Recommended

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 on roadside obstructions. OM3-L for left side, OM3-R for right side, OM3-C for both directions. Red/white reflective.

MUTCD Reference: Section 2C.65

Reference: MUTCD Section 2C.65