Spring Creek, Grovetown, Lower Diversion Stopbanks
Parts of Marlborough’s 180 km stopbank network were damaged by the recent Kaikoura Earthquake. Stop banks at Spring Creek, the Lower Diversion and Grovetown are affected.
Council is working with engineers and contractors to repair these as quickly as possible. This will take up to six months. Until this work is completed, properties beside the stopbanks are at greater risk of being exposed to flooding.
Flood mapping by Council engineers shows minimal potential impact on the Spring Creek Intersection and SH 1, however, there is always a risk of a major weather event that could affect any area and any stopbank regardless of its condition.
What you can do
The stopbanks are still intact and will hold medium river flows, but they have an increased risk of failing in a heavy rain/ large river flow similar to the same level as the July 2012 flood (2,500 m3/sec).
Keep an eye on the Wairau River’s water flow (the label beside Tua Marina) on Floodwatch. If the river’s water flow goes over 2,000 m3/sec, evacuate immediately.
Listen for emergency broadcasts on Brian FM (100.9FM),More FM (92.9FM), The Breeze (89.7FM) and Radio Live (95.3FM), and monitor Marlborough District Council’s Facebook and Twitter posts.
Updates on repair progress will be posted regularly on this page.
Make an evacuation plan
- Check with family and friends if you can stay with them should you need to evacuate
- Have a ‘grab bag’ ready with essential items for being away from for some time
- Copy down insurance policy numbers etc
- Check with your neighbours and nearby friends and family. Find out what their plans are and set up a phone/text group to stay in touch
- Turn off power, gas and water if you evacuate
- Remember your pets – they are your responsibility
Don’t rush when leaving. Take your time and check on your neighbours.
Where to go if you evacuate
If you can’t go to family or friends, Civil Defence will have evacuation/information points at:
Short-term emergency accommodation can be arranged from these points.
How will I know to evacuate?
- Keep an eye on the weather; if you’re worried, evacuate.
- If you notice heavy rainfall, check the Wairau River’s water flow (the label beside Tua Marina) on Floodwatch. If the river’s water flow goes over 2,000 m3/sec, evacuate immediately.
- We will alert you through radio: Brian FM (100.9FM),More FM (92.9FM), The Breeze (89.7FM) and Radio Live(95.3FM).
- We will post alerts on Marlborough District Council’s Facebook page and Twitter accounts.
- Civil Defence will also be out door knocking.