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Services - Highway & Guardrail

Highway & Guardrail

Impact Attenuators

Impact Attenuator - MIdwest Fence

Impact attenuators, also known as crash cushions, are essential safety devices designed to protect motorists and infrastructure by minimizing the severity of vehicle collisions with fixed objects or barriers. Installed in strategic locations, such as the ends of guardrails, bridge piers, or highway exits, impact attenuators absorb and dissipate crash energy, reducing the risk of severe injuries or fatalities for vehicle occupants.

These energy-absorbing devices come in various forms, including hydraulic, mechanical, and sand-filled systems. They are engineered to meet strict crashworthiness criteria, such as the National Cooperative Highway Research Program (NCHRP) Report 350 or the Manual for Assessing Safety Hardware (MASH), to ensure their effectiveness in mitigating collision forces.

Impact attenuators can be temporary or permanent, depending on their application. Temporary attenuators are often used in construction zones or other temporary traffic control situations, while permanent attenuators are designed for long-term use at fixed locations.

Temporary impact attenuators are commonly employed in construction zones or other temporary traffic control situations. They are portable, easy to install and remove, and can be reused in multiple locations. This item can be rented or purchased.

Permanent impact attenuators are designed for long-term use at fixed locations, such as freeway exits, bridge piers, or median barriers. Constructed with more durable materials, these attenuators are built to withstand weather and environmental conditions over an extended period.

By incorporating impact attenuators into road safety infrastructure, transportation authorities help to enhance roadway safety, protect valuable infrastructure assets, and ultimately save lives.



AISC Certified for Bridge & Highway Metal Component Standards

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