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152: Information to be provided to chief executive
or “You need to give the boss important details about dams as the rules say”
You could also call this:

“A dangerous dam is a high or medium impact dam that might break during normal times, a not-too-big earthquake, or a not-too-big flood.”

A dam is considered dangerous under this law if it meets two conditions. First, it must be classified as either a high potential impact dam or a medium potential impact dam. Second, it must be likely to fail in one of three situations:

  1. During normal, everyday conditions
  2. If there’s a moderate earthquake (as defined in the rules)
  3. If there’s a moderate flood (as defined in the rules)

If a dam meets both of these conditions, it’s considered dangerous according to this law. This helps you understand when a dam might be unsafe and need special attention.

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Next up: 153A: Meaning of earthquake-prone dam and flood-prone dam

or “Explains how dams are classified as risky in big earthquakes or floods based on their size and chance of breaking”
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Part 2 Building
Safety of dams: Dangerous dams

153Meaning of dangerous dam

  1. A dam is dangerous for the purposes of this Act if the dam—

  2. is a high potential impact dam or a medium potential impact dam; and
    1. is likely to fail—
      1. in the ordinary course of events; or
        1. in a moderate earthquake (as defined in the regulations); or
          1. in a moderate flood (as defined in the regulations).

            Notes
            • Section 153(b): replaced, on , by section 31(1) of the Building Amendment Act 2008 (2008 No 4).
            • Section 153(c): repealed, on , by section 31(2) of the Building Amendment Act 2008 (2008 No 4).