MANGAMAHAKI
CATCHMENT
Primary Township Omakere
Area 26,418 hectares
Land Use: 94 percent of the catchment in the pasture and four percent is in exotic forest.
CATCHMENT
GROUP
Catchment Committee Aaron Vowles, Callum Sutherland, Sarah Kingston, James Aitken, Grant Angus, Stuart McDougal
Catchment Co-ordinator Pixie Seligman
Email tukicoordinator@gmail.com
Phone 0277212423

ABOUT OUR CATCHMENT

Frequent extreme rainfall has worsened flooding, with dense willow infestations blocking waterways. This has caused erosion, sediment loss, and affected the water quality. At a meeting with HBRC in 2022, locals raised concerns about the stream’s flood risk, business impacts, and ongoing degradation. As a result, HBRC launched a three-year willow removal project, aimed at clearing 25.5 km of stream. It is now clear that more time and funds will be required to clear the stream.
A 2024 TLC Demonstration Project, with support from the Cyclone Gabrielle Appeal Trust, focused on riparian planting, with over 3,000 natives established to stabilise banks, filter nutrients, and boost biodiversity.post will removal.
THE BIG PICTURE
The Big Picture
As part of The Big Picture project, Tukituki Land Care has developed independent, science-backed catchment plans for each of the 17 sub-catchments of the Tukituki River. These farmer-led plans address key environmental challenges specific to each area while identifying practical, affordable solutions. These plans do not impose rules or regulations but they give farmers and catchment groups a roadmap for future planning to improve water quality, boost farm productivity, and open the door to future funding opportunities.
TLC partnered with environmental planning consultancy Environment, Innovation and Strategy Ltd (EIS), who collected data specific to each sub-catchment, including erosion maps, flow path models, land use capability, soil types, and water monitoring information. Alongside the scientific data, in December 2024 TLC hosted workshops for farmers and growers in each sub-catchment to make sure the solutions aligned with the realities of farming and growing in each sub-catchment.
Catchment plans and a summary document are now available for each of the 17 sub-catchments.
Mangamahaki Catchment Plan: Summary
Download the Mangamahaki catchment summary to find out more about the Mangamahaki catchment including context, challenges and key actions.




Mangamahaki Catchment Plan: Full Report
Download the Mangamahaki catchment full report for a more in-depth look into the context, challenges and key actions in the catchment.

Mangamahaki Catchment Maps
These maps have been created as part of The Big Picture and have been compiled as an appendix to the catchment plans.
