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Lake Oroville imminent dam failure

    • 2564 posts
    1
    February 12, 2017 6:34:21 PM PST

    In case you missed the announcement. Marysville and surrounding low lying areas are being evacuated anticipating failur of the dam on the Feather River. Sun 2/12/17 6 pm

    • 39 posts
    2
    February 12, 2017 8:08:20 PM PST
    NO, DickBoyd, Failure of the Auxilary Spill Way. A huge difference than the DAM. Though highly important, the fact is the reports all say the DAM is still safe. As of Sunday 2/12/17 @ 8:07 pm.
    • 1526 posts
    3
    February 13, 2017 5:14:11 AM PST
    Correct emerette, and so far all is good. They got lucky. But I would think eventually the second spillway would reach hard pan It's hard to imagine the tremendous hole in the ,main spillway. Upside is you cam launch much easier.
    • 475 posts
    4
    February 13, 2017 7:45:56 AM PST
    Others have told me that the amount of people being evacuated and coming through Marysville was one heck of a traffic problem last night.
    Does anyone know if Highway 70 from Marysville traveling South is open today?
    • 1030 posts
    5
    February 13, 2017 7:54:11 AM PST
    Yes Hwy 70 south out of Marysville is open. My wife drove to work through there @ 6am.
    • 1030 posts
    6
    February 13, 2017 7:59:30 AM PST
    I believe the emergency / auxiliary spillway is built on fill. It was a canyon before. So it will not hit hardpan anytime soon.
    The erosion if continued could possibly hit what is called natural undisturbed soil which may be hardpan I am not sure.
    • 2564 posts
    7
    February 13, 2017 8:36:18 AM PST
    emerette2 said:
    NO, DickBoyd, Failure of the Auxilary Spill Way. A huge difference than the DAM. Though highly important, the fact is the reports all say the DAM is still safe. As of Sunday 2/12/17 @ 8:07 pm.

    Thank for the clarification, Emerette2.

    • 475 posts
    8
    February 13, 2017 9:46:47 AM PST
    hdtrvlr said:
    Yes Hwy 70 south out of Marysville is open. My wife drove to work through there @ 6am.

    Thank you hdtrvir! My daughter is coming from the bay area and needed to know. You have a good day.

    • 21 posts
    9
    February 14, 2017 5:36:02 AM PST

    Is there any organization/church/community group helping out with coordinating shelter in our area for evacuees? I am out of town now but would like to help out.

    • 4977 posts
    10
    February 14, 2017 8:56:06 AM PST
    The local churches almost always help out. The Red Cross and United Way do too. Fortunately we've had nothing other than evacuations.
    • 39 posts
    11
    February 14, 2017 9:50:06 AM PST
    Lola, in regards to your question asking about ways offering to help...I started a thread the other day asking your same concerns, but towards the Alcouffe Center and they have responded to the needs that are in demand...you can read up on their requests on the opening HOME page here on Yubafoothills.
    • 2564 posts
    12
    February 14, 2017 9:59:17 AM PST
    https://www.nytimes.com/2017/02/13/us/oroville-dam-california-spillway.html?emc=edit_th_20170214&nl=todaysheadlines&nlid=66809837&_r=0
    • 2564 posts
    13
    February 14, 2017 10:05:31 AM PST
    http://www.co.yuba.ca.us/Departments/OES/
    • 362 posts
    14
    February 14, 2017 2:31:32 PM PST
    Finally found some info that I wanted 2grande. Chew on this for a while members.
    http://www.water.ca.gov/orovillerelicensing/docs/settlement_agreement/Settlement%20Agreement.pdf
    • 4977 posts
    15
    February 14, 2017 4:41:01 PM PST
    The link is no good. Must be part of it missing.
    • 362 posts
    16
    February 14, 2017 6:48:38 PM PST
    http://www.water.ca.gov/orovillerelicensing/docs/settlement_agreement/Settlement%20Agreement.pdf
    • 2564 posts
    17
    February 15, 2017 2:56:24 PM PST
    This e-mali will be on YubaFoothills.com discussion group. Lake Oroville imminent dam failure



    Terms describing dams:

    This from New Hampshire:

    http://www.des.nh.gov/organization/commissioner/pip/factsheets/db/documents/db-1.pdf



    This from Nevada:

    http://water.nv.gov/Engineering/Dams/Glossary.cfm



    This from Army Corps of Engineers:

    http://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Program-Activities/

    http://www.lrh.usace.army.mil/Portals/38/docs/USACE%20Acronyms%20and%20Definitions.pdf

    http://www.iwr.usace.army.mil/Missions/Flood-Risk-Management/Flood-Risk-Management-Program/

    I could not find the USACE bulletin or official definitions so I am asking hqpublications@usace.army.mil. by separate e-mail for the reference.



    My interest is in public education. Recent Oroville Dam news items indicated, to me anyway, the need for public understanding of design of water control structures. Dams, Levees, Weirs etc.



    How is water inflow and outflow for a reservoir determined? In other words, what are the design conditions?

    What role do the GOES satellites play in determining or monitoring water inflow?

    Who coordinates releases? Where can I find the policy for operation of dams?





    RICHARD BOYD

    9953 Gary Drive

    Browns Valley, CA 99518

    530 639 2360
    dickboyd@aol.com