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Dams C‑class High‑importance

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Plughole Spillway

"These uncontrolled spillway devices are also called morning glory,[10] plughole,[citation needed] glory hole[10] or bell-mouth[11] spillways."

I have found evidence to support the satement that a Bell-mouth spillway is also called a Plughole spillway but don't know how to cite. If any helpful and knowledgable Wikipedian is able to do it, it sure would be appreciated.

https://www.google.com/search?num=100&hl=en&newwindow=1&safe=off&rlz=1B3GGLL_en-GB___AU463&q=%22plughole+spillway%22&oq=%22plughole+spillway%22&aq=f&aqi=&aql=&gs_sm=e&gs_upl=104238l109819l0l111146l6l4l0l0l0l0l2122l2925l2-2.1.9-1l4l0 58.110.118.224 (talk) 11:41, 21 December 2011 (UTC)[reply]

=

Gibberish removed. Anyone else got any good spillway pictures? --18:56, 6 March 2007 (UTC)

There's good picture of a bellmouth spillway on the Ladybower reservoir page. 83.104.249.240 17:46, 4 August 2007 (UTC)[reply]

Changing the lead image

The current one does a poor job of reflecting the scale and impressive nature of that particular spillway, and spillways in general. I've just put one of the Kangaroo Creek Reservoir in flood that is a darn site more interesting and just as representative. Since User:Velela reverted my unilateral action on changing this I put it to you "spillway aficionados". Furthermore, on a "technical" note, the image is noisy, has multiple aberrations, and the focus could be better. It looks to scanned from an old print. Cheers -Oosh (talk) 05:09, 18 February 2009 (UTC)[reply]

I am curious about these aberrations ? Spherical, pin-cushion, chromatic ?? I don't see them myself but who am I to talk. Velela (talk) 18:20, 7 March 2009 (UTC)[reply]

Removed erroneous reference to Bonneville Dam

I took "Bonneville Dam" out of the spillway cross-section picture in the "Types" section. The schematic shown has Tainter gates, but Bonneville Dam has vertical lift gates on its spillway. 140.194.140.21 (talk) 21:56, 23 June 2016 (UTC) CatCube[reply]

Many sources (including this image source) describe Bonneville Dam as having Tainter gates, probably in addition to the vertical lift gates it clearly does have. Andy Dingley (talk) 22:26, 23 June 2016 (UTC)[reply]

I don't know what these sources are, but if they exist, they're factually incorrect. Bonneville Dam has no Tainter gates. 140.194.140.21 (talk) 17:57, 27 June 2016 (UTC) CatCube[reply]

I believe the cross-section image is the source of the incorrect information. The dam's spillway has sluice gates and there are tainter gates (valves) in the lock. See here as well.--NortyNort (Holla) 11:30, 28 June 2016 (UTC)[reply]

External links modified (January 2018)

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