Hot Water in the Hiwassee

Concerns over trout due to unexpected warm water release

Thursday, August 21, 2008 - by Richard Simms

Area trout anglers and government biologists are watching the Hiwassee River like hawks.

Most of this week TVA has been spilling extremely warm water over the top of Apalachia Dam on the Hiwassee River, potentially endangering the trout fishery. A TVA spokesman says the breakdown of one of two generators forced them to spill water over the top of the dam. He says however that the generator was repaired Wednesday afternoon and operation is back to normal.

Dan Hicks, spokesman for the Tennessee Wildlife Resources Agency, said, "We're monitoring it really closely. We've been trying to make (the Hiwassee) a trophy trout fishing situation... one our supervisors is really concerned about what the warm water temperatures and low oxygen could do to the fish."

Jim Herrig, a biologist with the U.S. Forest Service was on the Hiwasee Wednesday. He says he measured 80 degree water temperatures immediately below the Apalachia Dam.

"Water temperatures 80 degrees and above can be acutely toxic to trout," he said.

Twelve miles downstream however at the Apalachia Powerhouse, Herrig said temperatures had fallen significantly.

"I measured the water temperature just upstream from the generator outflow of 74 degrees," he said. "Downstream from the outflow, after the warmer and cooler water mixed, it was 70 degrees."

That water temperature is at the upper end of what trout can tolerate without become extremely stressed.

But again, according to a TVA spokesperson, the situation is back to normal as of Thursday.

Hicks says TWRA personnel will continue to monitor the situation closely.


Outdoor Chattanooga News And Events

Here are upcoming news and events from Outdoor Chattanooga: Outdoor Chattanooga Featured Event Huck Finn Family Paddling Adventure  July 10   Join Outdoor Chattanooga on a  Huck Finn Family Paddling Adventure  on  Fri., July 10  from  5 to 8:30 p.m.  We'll paddle canoe pontoons ... (click for more)

Georgia Is 1 Of 3 State Agencies To Receive Grant through New RBFF Program

The Recreational Boating & Fishing Foundation (RBFF) on Monday announced the recipients of its new State Innovative R3 Program Grants. The Georgia Wildlife Resources Division, Nebraska Game and Parks Commission and Vermont Fish & Wildlife Department are the first three states to receive funds through this new grants program to support innovative and sustainable state marketing ... (click for more)

Muslim Advocacy Group Questions House Arrest For Signal Mountain Man Charged In Threats Against Muslim Village In New York

The Council on American-Islamic Relations (CAIR), the nation's largest Muslim civil rights and advocacy organization, on Saturday questioned the release of a Signal Mountain man who admitted to planning what it called "a Charleston-style terror attack" on a Muslim community in New York. CAIR also called for stepped up protection for the community targeted in the plot. Judge ... (click for more)

Plumbers Bring Complaints To WWTA; Told New Contracts Are Ready

Several plumbers on Thursday brought complaints to a committee of the Hamilton County Water and Wastewater Treatment Authority (WWTA) and got little response other than being told that new contracts are ready. Kay Keefe of Keefe Plumbing said the small number of plumbing companies still participating in the program to repair leaky lines to homes, have long been operating without ... (click for more)

Could The Marriage Decision Spark A New Independence Day?

I confess that this year I am having a hard time with the idea of celebrating the 4th of July Independence Day. It is not because I am not thankful to God for what was done on that day, what it represents, and the blessings I’ve experienced that flow from it. On the other hand, I want to think that maybe this year’s celebration will mark a period in our history in which a new movement ... (click for more)

Roy Exum: Fourth Of July, 2015

As one who is about good and fed up with being “socially correct” so less than 10 percent of us can dictate how the other 90 percent of us ought to think, I am going to pause today in order to share a wonderfully fun email that has been around for a while. It is aptly called, “You Could Have Heard A Pin Drop.” Before I do, I got a sweet note the other day from my dear friend ... (click for more)