Innamincka Causeway

Submitted: Tuesday, Feb 02, 2010 at 16:14
ThreadID: 75712 Views:3580 Replies:2 FollowUps:2
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Does anyone know the height of the causeway in relation to the BOM website that shows the height of the flow in the Cooper at Nappa Merry ? For example at the moment the BOM website says that the Cooper is 2 m deep at Nappa Merry , does that mean the water is 2 m over the causeway ?
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Reply By: Member - Redfive - Tuesday, Feb 02, 2010 at 17:16

Tuesday, Feb 02, 2010 at 17:16
Hi Steve

You can ring The Innamincka Trading Post Ph: (08) 8675 9900 im sure they will tell you but i would say it would be closed and looking at the ABC news last night it will be for quiet a while cause theres a big lot a water that has to flow down though Innamincka most of the roads out there are shut as of yesterday due the the rain there getting but if the sun comes out and the wind blows they will open them up pretty fast hope this helps

AnswerID: 402312

Follow Up By: Skippype - Tuesday, Feb 02, 2010 at 17:57

Tuesday, Feb 02, 2010 at 17:57
It's raining heavily here a Jackson as I type this. It has been raining non stop for the past 28hrs. There is water in a solid sheet from here to the Cooper Creek crossing. That means a lot of water is going to cross the causeway at Innaminka. The Cooper rose above the bridge on the Jackson Innaminka road and cut that on Sunday last. That the water coming down from further north That has yet to reach Innaminka causeway
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Reply By: Member - Warrie (NSW) - Tuesday, Feb 02, 2010 at 21:46

Tuesday, Feb 02, 2010 at 21:46
Hi Stevo, here's a link to the Bom to the Nappa Merrie gauge. The level has risen a metre from 9 a.m. at 1.94m till 9 p.m. at 2.96m tonight which is pretty impressive. I suspect that the Innamincka causeway will be covered when this flood flow reaches it in a day or so. And there's a heck of a lot more water stiil above Longreach so that will take over a month to reach S.A.
The causeway has several 4 foot diameter pipes which can handle about 20 cumecs. We were there last May and the flow was 10cm over the causeway with this flow.
Shock horror the Qld site is almost up to date at this link#2. Note that a level of 0.5m means no flow so you start from there. Thus if Nappa is now 2.96m it's really only 2.46m deep. And the flow at 5 a.m on the 1st was just 11cumecs but extrapolating to 2.96m tonight is tricky but could be around 50 cumecs so Innamincka will soon be 1 metre under and impassable. Cheers WBom Link
Link #2 Qld Surface water archive

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Follow Up By: Stevo_62 - Wednesday, Feb 03, 2010 at 09:10

Wednesday, Feb 03, 2010 at 09:10
Thanks for that Warrie , found the 2nd link interesting
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