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.


Haslam, TDEC Announce 2015 Governor’s Environmental Stewardship Award Winners; GreenTrips 1 Of Winners

Tennessee Governor Bill Haslam and Tennessee Department of Environment and Conservation Commissioner Bob Martineau on Wednesday announced the winners of the 2015 Governor’s Environmental Stewardship Awards (GESAs). GreenTrips, of Chattanooga was one of the winners. The 11 winners will be recognized at an awards ceremony in Nashville on  June 23 .  “Today’s ... (click for more)

Outdoor Chattanooga And Rock/Creek To Host Paddlesports Clinics And Demo Day June 20

The public is invited to join Outdoor Chattanooga and Rock/Creek for a free day of kayaking, canoeing, stand-up paddle boarding (SUP), dragon boating, kayak fishing, SUP racing and paddling education at the Outdoor Chattanooga - Rock/Creek Paddlesports Clinics and Demo Day, happening on Saturday, June 20, from 10:00 a.m. to 2 p.m., at Harrison Bay State Park . The ... (click for more)

Man Killed By Train At Sale Creek

A man was struck and killed by a train in North Hamilton County on Wednesday evening. The sheriff's office said the incident occurred in Sale Creek.   (click for more)

Tram Up 1st Street That Proved A Dud Also Falters At Auction

Most of the 21st Century Waterfront development was a major success. Except for that non-working tram going up the steep hill at First Street. The city has finally given up on the unusual mode of transit and has placed it up for auction. But there were only four bids submitted and the high was only $92.50. The owners of the firm that built the tram, Outdoor Engineers ... (click for more)

The Truth About The Rising Costs To East Ridge On The Fire Hall Property

Re:East Ridge Has To Pay Unexpected $428,000 On Bass Pro Shop Deal   H ere is the truth about this article.    One section of the article says: " Unknown to anybody on the council today, the agreement limited use of the land to a fire hall."     In a letter dated Dec. 15, 2010, Mayor Lambert asked TDOT officials to ... (click for more)

Roy Exum: I Know About Dowries

There is a lawyer in Kenya who wants to meet President Barack Obama very badly. He knows the President will visit Kenya in July and the noble, young lawyer, Felix Kiprono, is very sincere when he says he wants to marry the oldest of the Obama daughters, 16-year-old Malia. He became interested in Malia in 2008 and can proudly say he has dated no other women since then, it has just ... (click for more)