Suchergebnisse
Suchergebnisse:
Repair efforts continue in the middle section of the Lake Oroville flood control spillway. Crews fill in rock crevasses and erosion areas with dental concret...
- 2 Min.
- 19,3K
- California DWR
In February 2017, heavy rainfall damaged Oroville Dam 's main and emergency spillways, prompting the evacuation of more than 180,000 people living downstream along the Feather River and the relocation of a fish hatchery.
11. Jan. 2019 · The Oroville Dam 2017 spillway incident presents an interesting case study, as it is a failure of a dam’s key structure that occurred under standard operating conditions, yet at an unfortunate time. It raises very interesting questions from a dam operator’s perspective: What does one do when a spillway, a structure built to deal ...
- Aristotelis Koskinas, Aristoteles Tegos, Penelope Tsira, Panayiotis Dimitriadis, Theano Iliopoulou, ...
- 2019
January and February 2017 were some of the wettest months on record in the 110-year history of the Feather River hydrologic record. The Feather River watershed above the Oroville reservoir received an entire year’s average runoff – 4.4 million acre-feet – in 50 days during those two months.
The flood on the Oroville dam spillway in California in 2017 was caused by disturbed water flow due to a crack in the spillway chute caused by internal erosion in poorly weathered bedrock.
14. Juni 2017 · The 2017 Spillway Emergency. Oroville Dam on February 27, 2017, two weeks after almost 200,000 people were evacuated from their homes. The main spillway, seen here, has split in two, and the earthen emergency spillway stands to the left of it. (KCRA via AP)
During routine visual inspections on February 7, 2017, officials discovered damage to Oroville’s main spillway. As a large atmospheric river storm settled over the Feather River basin, massive inflows and higher than expected precipitation increased lake levels rapidly.
