Tomohisa Sashida, principal consultant at Tokio Marine and Nichido Risk Consulting Co. Ltd. said that Japanese companies are increasingly making business continuity plans for large-scale flooding along with quake-related risk management, Reuters reported. The Japan Society of Civil Engineers said that floods in Tokyo could cause $550 billion worth of damage if dikes and levees in low-lying areas are overwhelmed by heavy rains and floodwaters.