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  3. Interstate Route Sign 3 Digits - M1-1W
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Sign Specifications

MUTCD Code

M1-1W

Sign Type

Route Marker

Shape

Rectangle (Vertical)

Standard regulatory sign shape

Colors

ABC

White background

Black legend

Compliance

MUTCD Compliant: Route marker per Section 2D.11. Standard shield design for route identification.

SizeDimensionsApplication
StandardDefault24x24"Conventional roads
Large36x36"Freeways
Compliance & Certifications

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

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

Mount on sign assembly with route number. Interstate: blue shield. US Route: white shield. State: varies.

MUTCD Reference: Section 2D.11

Reference: MUTCD Section 2D.11

Often Paired With

Signs commonly installed together per MUTCD guidelines

Custom Reflective Aluminum Vertical Signs - CS-VR

CS-VR

Custom Reflective Aluminum Vertical Signs

No Parking Any Time Sign - R7-1

R7-1

No Parking Any Time Sign

Reserved Handicap Parking Sign (Various States) - R7-8

R7-8

Reserved Handicap Parking Sign (Various States)

Reserved Parking - AR-102

AR-102

Reserved Parking

Custom Reflective Aluminum Horizontal Signs - CS-HR

CS-HR

Custom Reflective Aluminum Horizontal Signs

No Parking Sign - R8-3

R8-3

No Parking Sign

View All Parking Signs

Interstate Route Sign 3 Digits - M1-1W

Interstate Route Sign 3 Digits  - M1-1W
Min: 1 • Max: 1000
Unit Price:$0.00
Quantity:× 1
Total:$0.00

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Product Details

Interstate Route Sign 3 Digits - M1-1W

Interstate route signs play a critical role in guiding drivers along complex highway networks. This M1-1W sign meets rigorous Department of Transportation and Manual on Uniform Traffic Control Devices standards, featuring high-quality aluminum construction with standard punched blanks. Engineered for maximum visibility, the sign incorporates high-intensity and diamond grade reflective materials that ensure clear identification in diverse lighting conditions. The durable aluminum construction provides exceptional weather resistance, maintaining sign integrity and legibility throughout extended periods of outdoor exposure. These technical specifications make the sign an essential component for safe and efficient highway navigation.

Technical Details

Material: Aluminum standard punched blanks Reflectivity: High intensity and diamond grade Size: M1-1W Compliant with DOT and MUTCD standards

Spec • 2026
MUTCD Compliant