Minnesota Department of Transportation

511 Travel Info

Approved/Qualified Products

Sign structures

All products shown are MASH-16, Test Level 3 compliant for 0 degree impacts.

Bases for Square Tube Sign Structures

Product Manufacturer Riser post Mounting surface Omni-directional Approval date
Telespar® Slip Base Breakaway System Atkore Inc. 2-1/2” square tube Soil or Concrete Single Post only 2/26/2024
Redi-Torque Model 280 System Xcessories Squared Development & Mfg., Inc. 2-1/2" Square Tube Soil or Concrete Single Post only 7/22/2021
MASSH-400 Xcessories Squared Development & Mfg., Inc. 4" Square Tube Soil or Concrete No

7/22/2021