Hazard Knowledge

Transport routes may become impassable as flood waters rise or bridges and transport infrastructure is damaged. Waters affecting access routes that had been used previously may become deeper and prevent their continued use.

Undercutting of river banks or erosion of softer surfaces caused by flood water may make surfaces prone to collapse. Saturation of natural surfaces may increase the likelihood of vehicles or personnel becoming stuck.

Responders should also be aware of the risk that they become isolated by changes in conditions. Access and egress to the site of operations should be monitored constantly.