Minnesota Department of Transportation

511 Travel Info

Approved/Qualified Products

Longitudinal Barriers Products

High Tension Cable*

Product Manufacturer Approval Date
Brifen TL-4 (4-Rope) WRSF Brifen 08-22-2012
Gibraltar TL-4-4-Cable Barrier System Gibraltar 08-22-2012

*Product shall be accepted by the FHWA as meeting or exceeding the TL-3 MASH or TL-3 NCHRP 350 requirements. Installer shall assume all responsibility for proper application and adherence to the manufacturer's installation instructions. Maximum line post spacing shall be 10 feet.

Composite/Plastic Block-outs **

Manufacturer FHWA Eligibility Letter
8” Block Depth
NCHRP 350 ***
FHWA Eligibility Letter
8” Block Depth
MASH
FHWA Eligibility Letter
12” Block Depth
MASH
Approval Date
Mondo Polymer Technologies B-39B B-39D
B-278A
B-39C 10-11-2019
Trinity Highway Products B-85E - - 11-09-2016

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

***Product may be used on in-place NCHRP 350 systems requiring replacement or maintenance.