Peak Flood Wave Velocity
9.4 m/s
33.8 km/h torrential surge
Max Gorge Stage Height Surge
+11.8 m
Above dry baseline bed
Critical Bridge Scour Index
HIGH (88/100)
Piers 2 & 4 under severe lateral load
Safe Refuge Elevation Band
> 25m Above Bed
Escape all alluvial terrace zones
Valley Elevation Cross-Section & Dynamic Floodwave Propagation MODEL PROPAGATION T+1.80 hrs
T+1.80 hrs
Gorge Mountain Wall
Normal River Baseline
Active Flood Surge Wave
Bridge Washout / Pinch Choke
Comms Blackout Sector
High Ground Refuge Spur
Sector ID Location Name & Elevation Constriction Surge Crest ETA Bridge / Road Status Comms Signal Heli Winch Access