Figure 1: Illustration of the stormwater system
Stormwater systems include places for water to overflow, as well as pipes to carry water away.
Figure 2: Location of the three councils we looked at
The councils are far apart geographically and vary in the size of area they are each responsible for.
Figure 5: Forecast renewal and replacement capital expenditure compared with depreciation for stormwater assets, 2018/19 to 2027/28
The bars would be close to 100% if assets were replaced at the same rate as they were used up.
Figure 6: Councils’ actual capital spending on stormwater infrastructure compared with planned spending, 2014/15 to 2016/17
Many councils in the North Island spent less than half of what they had planned for.
Figure 7: Actual capital spending on stormwater infrastructure as a percentage of planned spending, by council, 2014/15 to 2016/17
For the last three years, none of the three councils consistently spent close to what they had planned.
Figure 8: Illustration of the different roles and responsibilities for the stormwater system
Different parts of the stormwater system are managed by different agencies or individuals.
