What is the Lower Clutha Flood Protection and Drainage Scheme?

The Lower Clutha Flood Protection and Drainage Scheme plays a vital role in managing flood risk and ensuring productive land use in the Lower Clutha area in Otago.  

The scheme extends from 4 kilometres upstream of the Balclutha township and ends at the sea. It was built over several decades between 1960 and 1991 to protect the towns of Balclutha, Kaitangata and Stirling as well as low-lying farmland.   

The scheme comprises both flood protection and drainage assets. Floodbanks around the Clutha River, and other tributaries, prevent water from flooding onto low lying land. A comprehensive network of drainage infrastructure, including pumps, channels, and culverts, is in place to manage internal runoff and maintain arable land conditions.  

The Clutha River/Mata-Au is the second longest river in New Zealand, and the largest by average flow. Its headwaters are in the Southern Alps above lakes Whakatipu, Wānaka and Hāwea.  

The Clutha River splits into two just downstream of Balclutha. Between 60% and 70% of the flow goes down the Koau Branch and 30% to 40% down the Matau Branch. Between the branches is an island called Inch Clutha – at the top of this is a floodway (an area designed to carry floodwaters when the river level rises).  

Flood protection and drainage scheme map

What does the scheme help protect?

The combined flood protection and drainage scheme outlined above is in place to protect:

  • 9,300 ha of land
  • Four bridges 

The scheme includes the following infrastructure:

  • 110 km of floodbanks  
  • 153 km of open drains  
  • 189 culverts 
  • Five pump stations 

The Lower Clutha Flood Protection and Drainage Scheme Liaison Group

The purpose of the liaison group is to act as an informal committee who will work alongside ORC to:

  • Provide feedback to the ORC through the liaison group on proposed scheme operational and capital programmes.
  • Provide feedback on the scheme levels of service.
  • Provide feedback on the development of infrastructure strategy, asset management plans, and rating/funding proposals as relevant to the schemes.
  • Facilitate effective communication between the scheme ratepayers, key infrastructure providers, and ORC.
  • Be the ‘eyes and ears’ of the scheme community in relation to scheme performance and stakeholder satisfaction.

 

(Left to right) ORC Councillor Kate Wilson, ORC Councillor Robbie Byars, Dave Botting (Balclutha), Mike Hurring (Barnego), Stewart Morrison (Inch Clutha), Craig Sheppard (Paretai), Evan Dick (Kaitangata) 

 

Representatives on the liaison group

The group will act as an informal committee who will work alongside Otago Regional Council.

There is a total of ten seats, with five seats available for community representatives to be voted onto.

One seat is allocated to each of the following areas:

  • Balclutha
  • Paretai
  • Barnego
  • Inch Clutha
  • Kaitangata

Additionally, there will be specific seats for two mana whenua representatives, Contact Energy, an ORC Councillor, and a Clutha District Councillor.

Party representatives Number of seats in group
Balclutha 1
Paretai 1
Barnego 1
Inch Clutha 1
Kaitangata 1
Mana Whenua 2
Contact Energy Limited 1
ORC Councillor 1
Clutha District Councillor 1
Total 10

ORC will also continue to actively engage with mana whenua on key issues relating to the scheme, allowing participation in decision-making, and support in the development of capability.

Representatives elected 2025

Area Representative
Balclutha Dave Botting
Barnego Mike Hurring
Inch Clutha Stewart Morrison
Kaitangata Evan Dick
Paretai Craig Shepard

Other flood protection and drainage schemes

ORC owns and manages several other flood protection schemes and drainage schemes as well as a combined flood protection and drainage scheme.

They are:

ORC also owns but commissions external management for parts of the Lower Waitaki River Control Scheme.

 

Floodbank repairs in Kaitangata

 

 

Floodbank repairs in Factory Road in Paretai

 

Re-establishing liaison groups

The Lower Taieri liaison group was established in late 2024 and now has in place a regular cycle of at least twice-yearly meetings.

The Lower Clutha liaison group will be established in late 2025 and the Tokomairiro Drainage Scheme Liaison Group will be established in early 2026.

Frequently Asked Questions (FAQs)

You will need to be at the AGM on 13 November 2025 in person to vote for those nominated for the liaison group.

General FAQs

Liaison group FAQs

Contact us

If you have any questions around the flood protection and drainage schemes, the liaison group, or the nomination process, please don't hesitate to reach out.

You can email us at customerservices@orc.govt.nz

Give your feedback using our online contact us form

Or call us freephone on 0800 474 082 Monday to Friday, 8am to 5pm