Re:Costa Rica has gone 76 days using 100% renewable electricity
by celticninja on Friday September 09, 2016 @09:13AM
(#12461808)
Mosul is hardly an example of a well engineered dam though built in 1984 and falling to pieces. The Hoover Dam was built in 1933 and is not in need of pulling down.
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Re:Costa Rica has gone 76 days using 100% renewable electricity
by JoeAltmaier on Friday September 09, 2016 @09:22AM
(#12461889)
If maintenance were interrupted (social upheaval) then Hoover too would fail. It take maintenance to keep it running - in particular mussels would foul and stop the turbines in a few seasons.
Re:Costa Rica has gone 76 days using 100% renewable electricity
by masklinn on Friday September 09, 2016 @09:58AM
(#12462228)
> If maintenance were interrupted (social upheaval) then Hoover too would fail.
Probably not in your lifetime let alone in a generation. Mosul's an issue because the substrate is not suitable for dam building (it's soluble gypsum, so it just keeps eroding because dam foundations kind-of tend to be around water) so the dam has to be continuously grouted to prevent it from failing.
Re:Costa Rica has gone 76 days using 100% renewable electricity
by JoeAltmaier on Friday September 09, 2016 @04:41PM
(#12465894)
Add Mosul holds 2.5 million people on a floodplain. When the dam fails catastrophically, it will be a bloodbath. It'll happen in the next few years.
Re:Costa Rica has gone 76 days using 100% renewable electricity
by cr1895 on Friday September 09, 2016 @10:55AM
(#12462776)
They're not really comparable are they? It's not whether the turbines in the dam will continue to generate electricity, but whether or not the dam itself is structurally sound. My limited understanding is that the Mosul dam is not, while Hoover will outlast us.
Re:Costa Rica has gone 76 days using 100% renewable electricity
by dredmorbius on Friday September 09, 2016 @07:10PM
(#12466686)
The risk in the case of Mosul is failure of the dam face itself. Not merely the generating equipment.
Hoover faces no threats of similar magnitude.