imilar in design to roadside barriers, unique in their design for bridges.
Bridge barriers must comply with the requirements of the Bridge Manual.
Guidelines for the retrofitting of guardrails to existing bridges are in preparation.
4.3 Crash Cushions and End Terminals
The end of a barrier is a point of major concern. A crashworthy end treatment, conforming to NCHRP 350 TL-3, must be provided when the end of a barrier is vulnerable to head-on impacts.
4.4 Transitions
A non-rigid barrier should b