Condition report for flood protection and land management assets for all zones

Report: TR 2021/20

Authors: Rebecca Wheadon

Every year, a combination of external engineers and Waikato Regional Council staff assess the condition of various river structures and flood protection infrastructure, so a condition grading can be assigned, and then used to prioritise future works.

These inspections vary in complexity, from dewatering of sites to allow the structural integrity of pumpstations and floodgates to be checked, to the walking or driving of stopbanks looking for bull holes, excessive gorse growth or damaged fences, as examples.

Both the condition of the assets and any defects found, are noted in the asset management system.

This report analyses the 2021 data gathered in the field by the council operations staff, mainly by visual observation of assets condition, survey information following annual stopbanks crest level survey by a specialist contractor and any other information that may be available.

The objectives of this report were to:

• evaluate the physical condition of the assets
• explain how an asset is performing in relation to design specifications
• provide an overall assessment in relation to agreed service level performance standard of stopbanks
• assist relevant zone and asset managers in managing on-going schemes and identifying future work requirements
• provide basis for reporting to scheme’s stakeholders.