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2021-01-18 GC - Item 3 - Attachment 2 - Phase 7 Project Summary Coastal Hazards Adaptation Plan
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Log in to see the plans as drawn Consequence Risk Level Potential
Hazard Event/ Planning Existing Likelihood of Combined
Asset Name Location Asset Type Impacted Assets Environ- Adaptive Control
Type Horizon Controls the Hazard Community Council Consequence
mental Capacity Options
1-2 lots partially
1 in 20 yr ARI Now inundated, no Possible Insignificant Insignificant Insignificant Insignificant Low
dwellings
1 in 100 yr ARI Now Unlikely Insignificant Insignificant Insignificant Insignificant Low
[TT2] South 1 in 500 yr ARI Now Rare Insignificant Insignificant Insignificant Insignificant Low
of CBD. 1 in 20 yr ARI 2040 Possible Insignificant Insignificant Insignificant Insignificant Low
Bound by 1 in 100 yr ARI 2040 Approx. 4-6 lots Unlikely Insignificant Insignificant Insignificant Insignificant Low
Lake St, Storm Tide 1 in 500 yr ARI 2040 partially inundated, Rare Insignificant Insignificant Insignificant Insignificant Low
Doonella Inundation 1 in 20 yr ARI 2070 no dwellings Possible Insignificant Insignificant Insignificant Insignificant Low
Residential Localised
Residential St, Lake 1 in 100 yr ARI 2070 Unlikely Insignificant Insignificant Insignificant Insignificant Low
Properties local riverwalls,
Properties Doonella 1 in 500 yr ARI 2070 Rare Insignificant Insignificant Insignificant Insignificant Low
and collector vegetated
(multi-dwelling
roads, local 1 in 20 yr ARI 2100 buffers along the Possible Insignificant Insignificant Insignificant Insignificant Low
and detached) 33 lots 1 in 100 yr ARI 2100 10-13 lots partially Unlikely Moderate Insignificant Insignificant Moderate Medium
parks lake
(not inundated, few half
counting 1 in 500 yr ARI 2100 of full lot, some Rare Moderate Insignificant Insignificant Moderate Low
individual dwellings impacted
subdivision 4 lots partially
s) 2040 impacted, no Almost Certain Insignificant Insignificant Insignificant Insignificant Low
Permanent
dwellings
Sea Level
2070 7 lots partially Almost Certain Insignificant Insignificant Insignificant Insignificant Low
Rise
impacted, 1-2
2100 Almost Certain Insignificant Insignificant Insignificant Insignificant Low
dwellings
1 in 20 yr ARI Now Possible Insignificant Insignificant Insignificant Insignificant Low
1 in 100 yr ARI Now Unlikely Insignificant Insignificant Insignificant Insignificant Low
Gravity Main
1 in 500 yr ARI Now Rare Insignificant Insignificant Insignificant Insignificant Low
1 in 20 yr ARI 2040 Possible Insignificant Insignificant Insignificant Insignificant Low
1 in 100 yr ARI 2040 Unlikely Insignificant Insignificant Minor Minor Low
[TT2] South Stormwater, Storm Tide 1 in 500 yr ARI 2040 Rare Insignificant Insignificant Minor Minor Low
of CBD. sewage, and Inundation 1 in 20 yr ARI 2070 Possible Insignificant Insignificant Minor Minor Medium
Gravity main, SW
Bound by water supply 1 in 100 yr ARI 2070 Unlikely Insignificant Insignificant Minor Minor Low
Critical assets (pipes, pits)
Lake St, and energy and 1 in 500 yr ARI 2070 Rare Insignificant Insignificant Minor Minor Low
infrastructure electricity distribution
Doonella lighting 1 in 20 yr ARI 2100 Possible Insignificant Insignificant Minor Minor Medium
St, Lake infrastructure 1 in 100 yr ARI 2100 Unlikely Insignificant Insignificant Minor Minor Low
Doonella assets 1 in 500 yr ARI 2100 Rare Insignificant Insignificant Minor Minor Low
Gravity main,
2040 Almost Certain Insignificant Insignificant Minor Minor Medium
electricity distribution
Sea Level
2070 SW assets, gravity Almost Certain Insignificant Insignificant Minor Minor Medium
Rise
main, electricity
2100 Almost Certain Insignificant Insignificant Minor Minor Medium
distribution
1 in 20 yr ARI Now Possible Minor Insignificant Moderate Moderate Medium
1 in 100 yr ARI Now Unlikely Minor Insignificant Moderate Moderate Low
Doonella Bridge
1 in 500 yr ARI Now Rare Minor Insignificant Moderate Moderate Low
partially impacted
1 in 20 yr ARI 2040 Possible Minor Insignificant Moderate Moderate Medium
[TT2] South 1 in 100 yr ARI 2040 Unlikely Minor Insignificant Moderate Moderate Low
of CBD. Storm Tide 1 in 500 yr ARI 2040 Rare Minor Insignificant Moderate Moderate Low
Bound by Inundation 1 in 20 yr ARI 2070 Possible Minor Insignificant Moderate Moderate Medium
Road network Lake St, Road network 1 in 100 yr ARI 2070 Above plus partial Nil Unlikely Minor Insignificant Moderate Moderate Low
Doonella 1 in 500 yr ARI 2070 inundation for Lake Rare Minor Insignificant Moderate Moderate Low
St, Lake 1 in 20 yr ARI 2100 St Possible Minor Insignificant Moderate Moderate Medium
Doonella 1 in 100 yr ARI 2100 Unlikely Minor Insignificant Moderate Moderate Low
1 in 500 yr ARI 2100 Rare Minor Insignificant Moderate Moderate Low
2040 Almost Certain Minor Insignificant Moderate Moderate High
Sea Level Doonella Bridge
2070 Almost Certain Minor Insignificant Moderate Moderate High
Rise impacted
2100 Almost Certain Minor Insignificant Moderate Moderate High
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