Minnesota Department of Transportation

511 Travel Info

Approved/Qualified Products

Temporary Barriers

Portable Precast Concrete Barrier

MnDOT has no Approved Products List for these devices. Portable precast concrete barrier shall be installed per MnDOT specifications.  See Work Zones Temporary Traffic Control (TTC) device standards for more information. Other barrier designs will be allowed if certified by the FHWA as meeting or exceeding the MASH-16, TL-3. Different barrier designs shall not be connected together.

Moveable Concrete Barrier

  1. Barriers shall have an FHWA Hardware Eligibility Letter certifying that the product meets MASH-16, TL-3 or higher.
  2. End user shall assume all responsibility for proper application and adherence to the manufacturer's installation instructions.
Product Manufacturer Approval Date
Road Zipper Barrier – Concrete Reactive Tension System (CRTS) 18” Lindsay Transportation Solutions 12/18/2019

Portable Steel Barrier

  1. Barriers shall have an FHWA Hardware Eligibility Letter certifying that the product meets MASH-16, TL-3 or higher.
  2. End user shall assume all responsibility for proper application and adherence to the manufacturer's installation instructions.
Product Manufacturer Approval Date
Zoneguard® Hill & Smith Inc. 12/18/2019
BarrierGuard 800 Laura Metaal 12/18/2019
BarrierGuard 800 MDS Laura Metaal 12/18/2019
Defender 100 FS Safe Barriers North America LLC 2/11/2020
Defender 100 HC* Safe Barriers North America LLC 12/18/2019
Defender 100 LDS Safe Barriers North America LLC 12/18/2019
HV2 Safety Barrier* Saferoads 12/18/2019
HighwayGuard™* Trinity Highway Products, LLC 9/29/2021
HighwayGuard™ LDS* Trinity Highway Products, LLC 9/29/2021

 *Product meets the crash test and evaluation criteria for TL-4.

Water-filled Barrier

  1. Barriers shall have an FHWA Hardware Eligibility Letter certifying that the product meets MASH-16, TL-3 or higher.
  2. End user shall assume all responsibility for proper application and adherence to the manufacturer's installation instructions.
Product Name Manufacturer Approval Date
None None None