River & Drainage Schemes

The river management team at Horizons is responsible for maintaining the river and drainage systems in the region to minimise erosion and ensure optimum flood protection for our communities. With many urban communities located on flood plains, it is important to have an appropriate standard of flood risk mitigation for the safety of the community. The protection of the flood plains is also important for protecting productive land, which is important to the economic goals of the immediately affected areas as well as the wider region.

Flood protection is funded through general and Scheme rates based on the amount of protection benefit each ratepayer receives. Horizons currently manages 34 River and Drainage Schemes across our region, maintains over 490 km of stopbanks, 1090 km of drains, 23 pumping stations and 53 dams.

Scheme map


2020 Scheme Liaison Committee Meetings


Stopbank grazing guidelines


Moutoa flood gates



2020 Catchment Community Meetings

As previously advised to those with an interest in Horizons' annual river management scheme meetings, the following presentations are for the remaining meeting cancelled due to COVID-19. 

Hokio Drainage Presentation
Koputaroa Drainage Presentation
Lower Whanganui Scheme Presentation
Makerua Drainage Presentation
Makirikiri Scheme Presentation
Manawatū Drainage Presentation
Matarawa Scheme Presentation
Moutoa-Whirokino Drainage Presentation
Ōhau-Manakau Scheme Presentation
Pohangina Ōroua Scheme Presentation
Porewa Scheme Presentation
Te Kawau Drainage Presentation
Tutaenui Scheme Presentation
Upper Whanganui Scheme Presentation
Whangaehu and Turakina Scheme Presentation


Rangitīkei River Presentations November 2020

The new strategy for the management of the Rangitīkei River was presented at two public meetings in November 2020.The presentations covered work completed since 2018, along with historical and recent changes to the river’s character. The new shovel ready projects and a strategy on reporting back to scheme members in March/April 2021 were also touched on. If you would like to view the presentations in full, please download below.

Rangitīkei River - Above Bulls


Rangitīkei River - Bulls to Sea