Meets NCHRP 350 and MASH TL-3 requirements. Weighs 85% less than ncrete. Deployment rate 1500 ft/hr. ZONEGUARD MOVABLE BARRIER SPECIFICATIONS. Classification – Longitudinal Barrier. Length – 50 ft. Width – 2 ft. 4 in. Height – 2 ft. 8 in. Test Level – NCHRP 350 TL 2 / 3 MASH TL-3.