The Office of the Auditor-General has investigated the state of the infrastructure, the maintenance done by local authorities, and what is needed to ensure the provision of roads and the “three waters” (water supply, wastewater, and stormwater) in the future. Introduction A key responsibility of local authorities is the management of infrastructure delivering essential services: roads and the “three waters” (water supply, wastewater, and stormwater). In New Zealand these assets are collectively worth more than $100 billion. The Office analysed the asset management practices of 31 selected local authorities that between them own 74 percent of local authority property, plant, and equipment assets nationwide