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Building Regs - Flood Hazard

Knowledge Base

Building Commission Practice Note 2013-65 - Flood Hazard Areas and Building Regulations states that:

"Once a site has been determined to be in a flood hazard area, the new performance requirements will apply. The Australian Building Codes Board (ABCB) has developed a standard for the construction of buildings in flood hazard areas."

"The ABCB standard - Construction of Buildings in Flood Hazard Areas - applies where the flow rate of flood waters does not exceed a velocity of 1.5 m/s. The ABCB have advised that the reasons behind this rate are that typical construction methods are able to withstand up to 1.5 m/s and this rate is consistent with other international standards."

A copy of this standard is available on the ABCB website

PC-Convey can be used to estimate flow velocities - see the Overbank Results
or Table of Results screens.

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