Supporting Technical Assessments

Table C1. Summary of Consequences for 1 in 1,000 AEP Flood-Induced Rainy Day Breach Scenario (Buildings) Notes: (1) Time of arrival and time to flood peak are relevant to the dam breach initiation. (2) Some businesses are expected to be closed before a severe storm event and thus excluded in the estimation of PAR and Potential Loss of Life. Address Distance Downstream (km) No. of Buildings affected Time of Arrival(1) (hr&min) Time to Flood Peak(1) (hr&min) PAR Potential Loss of Life Buildings along Ruahorehore Stream 0.0 – 3.0 1 20 min 30 min 4 0.028 Buildings along Ohinemuri River passing Waihi Township 3.5 – 7.5 12 20 min 35 min 48 0.336 Buildings along Ohinemuri River passing Karangahake Gorge 11.5 – 23.5 4(2) 1 hr 1 hr 35 min 16 0.064 Buildings along Ohinemuri River passing Paeroa Township 31.0 – 32.0 37 2 hr 30 min 3 hr 20 min 148 0.444 Total 216 0.872

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