For delineation devices on guardrail, see Signing, Delineation devices.
End terminals (beam guardrail)
- New and full-replacement installations must use MASH-compliant systems. NCHRP 350 systems available only for maintenance.
- Installer shall assume all responsibility for proper application and adherence to the manufacturer's installation instructions.
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 SOFT-STOP System Valtir, 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 January 2022 Note: 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.
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) Valtir, 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 Date Approved Bursting Energy Absorbing Terminal (BEAT) Road Systems, Inc. TL-3 N/A Yes N/A March 2014 W-Beam Guardrail (Medians)
MASH Median Terminals
Product Manufacturer Test Level (Design Options) MASH Tangent Flared Date Approved Median Attenuating TREND Terminal (MATT) Valtir, LLC TL-3 Yes N/A March 2023 NCHRP 350 Median Terminals
Product Manufacturer Test Level (Design Options) NCHRP 350 Tangent Flared Date Approved Crash Cushion Attenuating Terminal (CAT-350) Valtir, LLC TL-3 Yes N/A January 2001 X-Tension Median Attenuator System (X-MAS) Barrier Systems by Lindsay TL-3 Yes N/A December 2011