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NCHRP-350
PH: 800.521.6776
The following MDI Traffic Control Products meet the NCHRP's Report 350 guidelines for crashworthiness and
safety for road-side hardware and workzone devices.Click the WZ number to view a PDF of the acceptance letter for that product.

Model

WZ#

Description

Roll-Up Signs

Rigid Alum, Alpolic, Endurance

Rigid Plywood

4818K1

WZ-28

Alum. stand w/ 18" mounting height

Y

Y

Y

4860K1

WZ-28

Alum. stand w/ 5' & 7' mounting height

Y

Y3

Y3

5018K1 1

WZ-69 , WZ-164

Alum./Steel stand w/ 18" mounting height

Y

Y

Y

4884K1

WZ-69, WZ-138

Alum. stand w/ 7' mounting height

Y

Y

Y

40CAM

WZ-20

Steel stand w/ 12" mounting height

Y

N

N

30CAM

WZ-20

Steel stand w/ 12" mounting height

Y

N

N

4850RBK

WZ-28

Alum. stand w/ 5' mounting height

Y

N

N

4815RBK

WZ-28

Alum. stand w/ 14" mounting height

Y

N

N

4815RBK-601

WZ-164

Alum. stand w/ 5' mounting height

Y

Y4

N

4814DLK

WZ-3

Alum. stand w/ 14" mounting height

Y2

N

N

4814HDK

WZ-3

Alum. stand w/ 14" mounting height

Y2

N

N

4814SSCK

WZ-20

Alum./Steel stand w/ 12" mounting height

Y

N

N

4814NSCK

WZ-20

Alum./Steel stand w/ 12" mounting height

Y

N

N

5012SS

WZ-114

Steel stand w/ 12" mounting height

Y

N

N

5012NS

WZ-114

Steel stand w/ 12" mounting height

Y

N

N

5018SS

WZ-114

Steel/Alum. stand w/ 18" mounting height

Y

N

N

5018NS

WZ-114

Steel/Alum. stand w/ 18" mounting height

Y

N

N

50TRI

WZ-281

Steel/Alum. stand w/ 12" mounting height

N

N

Y

3612DLK

WZ-20 WZ-114

Alum. stand w/ 12" mounting height

Y

N

N

4812k

WZ-28

Alum. stand w/ 12" mounting height

Y

N

N

4814SL

WZ-333

Alum. stand w/ 14" mounting height

Y

N

N

1 With breakaway system
2 MDI Only
3 5' mounting height only
4 Alpolic, endurance only