Lake elevations

[snagged in outlet 3]

7 minutes ago, Quillback said:

  Things change, you have to change your procedures. 

That's what successful businesses do.   Goverment and academia don't do that very well.  They are already convinced they know everything.  So they don't adapt. 

[m&m]

Everyone is trying to think logical about this recent water rise. Don't you know it is because of the Russians and global warming. 

Mike

[crazy4fishin]

1 minute ago, m&m said:

Everyone is trying to think logical about this recent water rise. Don't you know it is because of the Russians and global warming. 

Mike

I knew the voice of reason would appear sooner or later!! 

Thanks Mike

C4F

[96 CHAMP]

James Parker  Table Rock Lake Group

All ten gates opened all the way would be 450,000cfs into Taneycomo--I know a lot of people are speculating the use of the auxiliary gates--but according to this the lake would  have to get to 942 before that. (Info under "Flood control" on Wiki) 

== Flood control ==
The original purpose of the reservoir was for flood control on the White River.  The dam had been authorized a month earlier under the Flood Control Act of September 3, 1943. The reservoir has a fluctuation of {{convert|16|ft|m}}. When the reservoir is above the maximum flood pool, excess water goes over the auxiliary overflow spillway at the north end of the dam.

The worst-case scenario of a catastrophic floodwater discharge from Table Rock Lake using the auxiliary floodgates would roughly resemble this:

At elevation 931 Table Rock Lake is at full flood capacity.  The ten Tainter gates are opened to accommodate additional lake inflow from the White River Basin including the James River and Beaver Lake discharge.

At elevation 937 Table Rock Lake is 6 feet above flood capacity.  The ten Tainter gates are opened wider in an effort to stabilize reservoir rise.  Outflow from the Lake under these circumstances will be nearing 200-300 thousand cubic feet per second (CFS).

Between elevations 937 and 942 the dam’s ten Tainter gates will be fully raised letting loose 450 thousand CFS into Lake Taneycomo.  This scenario would effectively submerge and destroy the powerhouse, power transmission grid, hatchery, and wreak serious destruction down stream.  An illustration of how Table Rock’s ten spillways might appear under these circumstances mimics this: the floodgates will extend up and out from the structure, like eyebrows, shadowing the concrete spillways!

At elevation 942 if reservoir levels are not yet stabilized, the auxiliary floodgates are brought on line, in concert with Table Rock’s fully opened floodgates.  This catastrophic protocol releases 1 million CFS of lake waters into Taneycomo and deals dreadful destruction to Branson, Hollister, Point Lookout and possibly the Powersite Dam.

Beyond an elevation 942 there is a danger of water overtopping the concrete dam and breaching the earthen structure, which imminently leads to cataclysmic structural failure and the uncontrolled release of the Table Rock Lake impoundment—nearly 3 million CFS of water.

SOURCE:<ref>Little Rock District Corps of Engineers</ref>

[176champion]

Lake is at 932 right now..

[bobby b.]

Just back from TR darn, pics below - lots of people coming to see.

 

[jdmidwest]

Pickwick Spilling all gates the other day was not as impressive.  Table Rock is a little higher, seems like more pressure coming out when they open gates.

TVA seems to do a better job maintaining the river system than USACE.  But they did not have to deal with record flooding.

[roy_eros]

Lake is still rising several inches an hour. Beaver has crested so hopefully they will be able to reduce outflow from it sometime tomorrow. 

[Woody55555]

Does anyone know what the Corps is saying what the crest will be and when?

 

 

[SplitG2]

12 minutes ago, Woody55555 said:

Does anyone know what the Corps is saying what the crest will be and when?

 

 

933.4 tomorrow