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  React 350®II Impact Attenuator









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REACT 350®II Reusable Energy Absorbing Crash Terminal

The REACT350®II is a highly efficient, reusable crash cushion that features 6 High Molecular Weight/High Density Polyethylene (HMW/HDPE) cylinders attached to a steel base track. The system is NCHRP 350 Test Level 3 compliant as a redirective, non-gating crash cushion. The REACT II has proven self-restoring characteristics after being impacted at 62 mph by a 1,808 lb (820 kg) car, or by a 4,409 lb (2,000kg) pick-up truck. The REACT II can be used to shield narrow hazards of up to 3' (914mm) wide.


  • Various cylinder wall thicknesses to accommodate both light cars and heavier, high-center-of-gravity vehicles
  • Extremely efficient, energy-absorbing, reusable HMW/HDPE cylinders
  • Minimal maintenance and repair
  • Delivered pre-assembled
  • Low lifecycle costs
  • Optional cylinder covers available

Typical Applications

  • Portable or permanent concrete barriers
  • Bridge piers
  • Bridge parapets
  • Square blocks
  • W-beam guardrail
  • Thrie-beam guardrail
  • Self-contained, steel backup
  • Concrete back-up structures

Installation and Repair Advantages

  • When impacted in NCHRP-350 testing, the system typically regains 90% of its original shape and capacity with minimal maintenance and repair
  • Units arrive fully assembled
  • NCHRP 350 testing impacts require little to no major component replacement resulting in low life cycle cost
  • Installs on new or existing concrete pad or asphalt
  • Anchorage options include: asphalt, concrete or soil-drive pile

Specifications REACT II, NCHRP 350 TL-3 System

  • 6.47m (21' ") Long Self Contained Backup Structure
  • 5.92m (19' 5") Long Concrete Backup Structure
  • 1.19m (3' 10") Width at Backup Structure
  • 1.31m (4' 3") High
  • 3470 lbs

Energy Absorption Systems, Inc.