| | Depth and elevation: Critical during design considerations, as it is often the primary factor in evaluating the potential for flood damage.
Velocity: The speed at which the floodwaters are flowing. Flowing water often causes erosion and scour, as well as debris impacts and hydrodynamic forces.
Frequency: Probability that a flood of a specific size will be equaled or exceeded in any given year.
Rates of rise and fall: If an area is subject to flash flooding (high rate of rise), certain retrofitting methods may not be feasible, especially if they require human intervention. |
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