Minnesota Department of Transportation

511 Travel Info

Approved/Qualified Products

For delineation devices on guardrail, see Signing, Delineation devices.

End terminals (beam guardrail) *

MASH W-Beam Guardrail

Energy Absorbing End Terminals

Product Manufacturer Test Level (Design Options)
MASH (MnDOT Type 31 Guardrail)
Tangent Flared FHWA Eligibility Letter Date Approved
Trinity SOFT-STOP Terminal Trinity Highway Products, LLC TL-3 Yes N/A CC-115 October 2016
MASH Sequentially Kinking Terminal (MSKT) Road Systems, Inc. TL-3 Yes N/A CC-126 October 2016
MASH Flared Terminal (MFLEAT) Road Systems, Inc. TL-3 N/A Yes CC-143 Provisional Approval Date Jan. 1, 2020 ** ***

** Provisional Approval allows for a limited number (or time-period) of installations that can be evaluated for ease of installation, ease of maintenance, and in-service performance. Once the provisional approval period has lapsed, with satisfactory performance, the product may gain full approval without limitations.

*** The Provisional Approval Period expires on Dec. 31, 2021.

NCHRP 350 W-Beam Guardrail

Energy Absorbing End Terminals

Product Manufacturer Test Level (Design Options)
NCHRP 350
Tangent Flared FHWA Eligibility Letter Date Approved
Sequential Kinking Terminal (SKT) Road Systems, Inc. TL-2, TL-3 Yes N/A Yes January 2001
Extruder Terminal (ET-PLUS) Trinity Highway Products, LLC TL-2, TL-3 Yes N/A Yes January 2001****
X-Tension Guardrail End Terminal Barrier Systems by Lindsay TL-3 Yes Yes Yes December 2011
Flared Energy-Absorbing Terminal (FLEAT) Road Systems, Inc. TL-2, TL-3 N/A Yes Yes January 2001

Note: The Eccentric Loader Terminal (ELT – MnDOT Standard Plate 8329) and the X-LITE Terminals were removed on May 8, 2017.

**** The ET-Plus Terminal was suspended from Oct. 28, 2014 through Feb. 12, 2016.

Box Beam Guardrail

Energy Absorbing End Terminals

Product Manufacturer Test Level (Design Options)
NCHRP 350
Test Level (Design Options)
MASH
Tangent Flared 31-inch Height (Option) Date Approved
Bursting Energy Absorbing Terminal (BEAT) Road Systems, Inc. TL-3 N/A Yes N/A N/A March 2014

W-Beam Guardrail (Medians)

Median Terminals

cTL-3
Product Manufacturer Test Level (Design Options)
NCHRP 350
Test Level (Design Options)
MASH
Tangent Flared 31-inch Height (Option) Date Approved
Crash Cushion Attenuating Terminal (CAT-350) Trinity Highway Products, LLC N/A N/A N/A N/A January 2001
X-Tension Median Attenuator System (X-MAS) Barrier Systems by Lindsay TL-3 N/A N/A N/A N/A December 2011

* Installer shall assume all responsibility for proper application and adherence to the manufacturer's installation instructions.