The NU-GUARD-31 W-beam guardrail post system meets criteria for use as a Test Level 4 (TL-4) system, offering great cost savings by eliminating the need for offset blocks or a heavy, expensive three-beam guardrail. The guardrail post system uses specially designed RIB-BAK U-channel steel posts that allow a standard W-beam guardrail to rise during impact, dissipating energy and resulting in a smoother and more predictable vehicle direction.

Nucor Steel Marion Inc.