Northern Grampians Shire Council Flood History
Northern Grampians Shire has a long history of flooding including a significant flood event in October 2022. This impacted the areas of Glenorchy, Great Western, Halls Gap, Marnoo, Navarre, and St Arnaud.
The key waterway which impacts Northern Grampians Shire Council is the Wimmera River.
The lead time to respond to a flood event may be limited. All households and businesses at risk of flooding should develop an emergency plan and be aware of their flood risk.
Households and businesses should refer to their Local Flood Guide or the Northern Grampians Shire Flood Emergency Plan for more information.
Halls Gap Local Flood Guide
Glenorchy Local Flood Guide
Glenorchy Guide to Gauges
There are five river gauges along various waterways upstream of Glenorchy (see gauges link). River gauges monitor river levels and may be used to predict flood events and levels for downstream properties and communities. Some river gauges have flood class levels of minor, moderate and major established, such as the Wimmera River at Glenorchy Gauge, while others show river height in metres (m).
Dadswells Bridge Local Flood Guide
About Flood Guides
Communities can use local flood guides to identify and better understand their local flood risk. They include information about: flood history, how to prepare & respond to floods and who to contact.
Contact Information
Local SES Units
- St Arnaud VICSES Unit:
- 55 Wheeler St,
- St Arnaud, Victoria
- Stawell VICSES Unit:
33 Sloane Street, - Stawell, Victoria






