New Zealand flood information / Manawatū–Whanganui

Representative view of Manawatū–Whanganui, New Zealand

Manawatū–Whanganui regional guide

Flood protection in Manawatū–Whanganui

Manawatū–Whanganui contains large river systems, hill-country catchments and low-lying plains. Major rivers, smaller streams, urban drainage and coastal conditions can all affect local flood risk.

Representative regional image: Krzysztof Golik, via Wikimedia Commons. Licence and full attribution details are provided on the linked source page.

If water is rising, put safety first. Follow Civil Defence instructions, move to higher ground when needed and never walk, swim or drive through floodwater.

Understanding flood risk in Manawatū–Whanganui

Palmerston North, Whanganui, Feilding, Levin, Taihape, Taumarunui and rural communities require different plans based on catchment, stopbank, drainage and access conditions.

Manawatū, Oroua, Whanganui and Rangitīkei systems

Confirm site-specific exposure through council mapping, local observations and qualified advice where required.

Low-lying plains, urban streams and drainage schemes

Confirm site-specific exposure through council mapping, local observations and qualified advice where required.

Floodways, stopbanks, gates, pumps and coastal outlets

Confirm site-specific exposure through council mapping, local observations and qualified advice where required.

Horizons Flood Watch and webcams help with awareness. The Moutoa floodgates can divert Manawatū River water through the floodway, while local systems such as the Makino gates manage particular catchments.

Planning for people, places and continuity

Schools and early learning

Include the Makino or other nearby waterways, playing fields, school gates and bus routes in the plan. Practise with the staff who would actually deploy equipment.

Iwi, marae and community facilities

For marae and community facilities, map river, drain and overland-flow routes and protect wharenui, kitchens, services and taonga while maintaining safe access.

Councils, businesses and organisations

Councils, supermarkets, farms, depots and facilities should set clear trigger levels, protect critical plant and stock, and plan for drainage behind temporary barriers.

Official Manawatū–Whanganui flood information

Use official warnings first, then regional monitoring and hazard information. Live readings can be provisional or interrupted during severe weather.

Prepare before water reaches the site

1. Trace the water path
Use flood maps, LIM information, past events, drains, contours and site photos.
2. Prioritise protection
People first, then critical entrances, services, records, stock, plant and continuity functions.
3. Set an early trigger
Choose the forecast, gauge level or on-site observation that starts deployment.
4. Practise and review
Assign roles, label equipment, time the setup and review after every exercise or event.

Portable flood protection options

A doorway, garage, loading bay and whole-site perimeter do not need the same solution. Expected depth, flow, ground surface, width, corners, storage, deployment time and drainage behind the barrier all influence the choice.

Red modular flood barrier holding back water
Modular perimeter protection
A continuous barrier line can be configured around vulnerable areas.
Connected modular flood barrier during a water test
Plan and practise
Dry-weather training helps teams deploy safely and consistently.

Turn Manawatū–Whanganui flood information into a site plan

Send Special Solutions Flood Protection photos, measurements and what you know about how water reaches the property. We can help identify a practical starting point for a home, school, marae, council site or organisation.

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Important: General educational information only—not real-time emergency advice, engineering certification or a guarantee against flooding. Follow official warnings and obtain property-specific advice for life safety, building work and critical infrastructure. Information and links reviewed 8 September 2026.