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Work Zone Safety Tools - Crashworthy Devices/Approved Lighting

Work Zone Safety Home Training Classes Awareness Program Crashworthy Devices/Vehicle Lighting References Contact

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Approved Vehicle Lighting

Contact for Approved Vehicle Lighting


Vehicle Warning Light Specification

Vehicle Lighting Requirements Brochure


Vehicle Safety Lights Approved Products List


Temporary Portable Concrete Barrier Quality Specification
Provides specifications and pictures for Concrete Median Barrier Design
The contractor shall furnish and install portable precast median barriers in accordance with current specification.
MnDOT Standard Plate 8337


Optional Connecting Pin Modification

A field modification has been approved to the connecting pin in order to improve the field placement and removal operation of the barrier system.

Tech. Memo 11-11-TS-02


Description and pictures of Concrete Median Barrier Design:
Provides description of MnDOT Standard Plate 8337 and shows examples of:
Barriers-Acceptable and Unacceptable (pdf 2.5 MB)


Crashworthy Devices (MASH/NCHRP 350)

Contact for crashworthy device information


Crash Testing Requirement for Work Zone Safety Devices
General Requirements for Devices
All Category I and Category II temporary traffic control devices shall meet crash testing criteria. This includes all new and used Category I and Category II devices. Category I devices include tube markers, plastic drums and cones, etc Category II devices include portable sign supports, Type I, II and III barricades, etc.

Crashworthy Device Certificate of Companiance Form (pdf 89.7 KB)

FHWA Website for Approved Work Zone Devices

Type III Barricades - NCHRP 350 Approved

MnDOT approved generic sign designs can be found at:
( Scroll down to bottom of page and click on following link Portable Sign Support Structures)


 Category III Devices

Temporary Portable Precast Concrete Barriers

(see standard plate 8337)