News for hackers. Stuff that matters.

A comment on Oroville Dam: Feds and state officials ignored warnings 12 years ago. Parent comment

Re:Oroville Dam: Feds and state officials ignored warnings 1... by jnsaff2 on Monday February 13, 2017 @03:28AM (#13633901)
The outflow hasn't changed so I'm not convinced that the flow over the lip has stopped. #armchairanalysis
[ Parent | on HN ]
Re:Oroville Dam: Feds and state officials ignored warnings 1... by wtallis on Monday February 13, 2017 @03:39AM (#13633942)
The outflow seems to be the ~100000 cfs from the main spillway draining at full capacity, which they opened to 100% early in the evening to relieve the emergency spillway, in spite of the existing damage to the main spillway.
[ Parent | on HN ]
Re:Oroville Dam: Feds and state officials ignored warnings 1... by jnsaff2 on Monday February 13, 2017 @03:44AM (#13633964)
Thank you.

By the way there's an amazing book that has a very gripping account of the Glen Canyon Dam incident and Grand Canyon in general.

http://www.goodreads.com/book/show/15803144-the-emerald-mile

[ Parent | on HN ]
Re:Oroville Dam: Feds and state officials ignored warnings 1... by Animats on Monday February 13, 2017 @03:33PM (#13638495)
It's good to see the lake level coming down. 896 feet now, four feet below overflow at the emergency spillway.

Don't take the outflow rate number too seriously. The emergency spillway is just a concrete lip with no flow metering. Here's the actual data source information.[1]

[1] https://cdec.water.ca.gov/cgi-progs/stationInfo?station_id=O...

[ Parent | on HN ]
Re:Oroville Dam: Feds and state officials ignored warnings 1... by Gargoyle on Monday February 13, 2017 @03:41AM (#13633953)
They said they want to lower the lake as much as possible to relieve pressure on the emergency spillway structure.
[ Parent | on HN ]