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THRIEBEAM Guardrail Crash Barriers

Please note, inline with the Austroads transition to MASH compliant systems, this safety barrier may no longer approved for new installs in your jurisdiction, please consult your local Ingal representative for further direction. For a fully compliant MASH TL4 guardrail barrier, please refer to our Ezy-Guard HC system.

An important attribute of ThrieBeam guardrail car barriers are their high level of performance especially for large vehicles. Due to the greater height of the rail face, ThrieBeam guardrail provide reduced deflection and improved resistance to vehicle vaulting or under running.
The G9 and G9 Modified ThrieBeam systems are deemed to comply to NCHRP-350 TL3 and TL4 respectively, for a MASH TL4 compliant ThrieBeam system, please view our Ezy-Guard HC system.
THRIEBEAM guardrail should also be used in transition from W-Beam guardrail to more rigid barriers. This significantly reduces the deflection of the barrier system and provides are gradual stiffness transition into the rigid barrier.

Please click here for terminals suitable for ThrieBeam systems.


Drawing Number Description Updated
MD.R132.F02.A.1 Thriebeam Assembly using Standard Blocking Pieces 01-07-2001
MD.R132.F03.A.1 Thriebeam Assembly using Notched Blocking Pieces 01-07-2001