TVA Averted Over $800 Million In Flood Damage In January, Officials Say

Wednesday, February 6, 2013

The Tennessee Valley Authority, through its system of dams and reservoirs, averted more than $800 million in flood damage to communities along the Tennessee River and its tributaries in January, according to officials.

TVA is using its 49 dams to store and then gradually release water after what was the third largest recorded rainfall and runoff for a January in TVA history.

During the month of January, the eastern part of the Tennessee Valley, including Knoxville and the Tri-Cities area, received approximately 10 inches of rain and the area below Chattanooga and West Tennessee averaged about 8 inches of rain. 

“We hold water behind the dams in order to minimize downstream flood impacts. After the high water crested on the Tennessee River and its tributary rivers, we started gradually releasing water out of the tributary reservoirs to recover storage space and to prepare for the next rain event,” said John McCormick, senior vice president, River Operations and Renewables.

TVA engineers use computer flood modeling, water elevation calculations and property value assessments along the Tennessee River and its tributaries to determine flood water impacts if TVA dams didn’t exist.

Areas estimated to have the most structural damage averted in January 2013 are:

·         Chattanooga, $710 million

·         Lenoir City, $61 million

·         Kingsport, $17.4 million

·         Knoxville, $7 million

·         South Pittsburg, $5.5 million

·         Elizabethton, $2.9 million

·         Clinton, $812,000

·         Savannah, $73,000

During an average year, TVA’s reservoir operations avert approximately $250 million in flood damage. TVA estimates it has averted nearly $7 billion in flood damage since it completed its first dam, Norris Dam, in 1936.

TVA continues to release water to recover flood storage space at most of its dams including all nine dams on the Tennessee River.  Excess water is also being released using spillway gates or sluice gates along with generators operating at maximum capacity at all 29 hydro generating dams, producing about 3,300 megawatts of electricity. That is enough to power about 1.8 million homes.

“We try to avoid spilling water because it’s low-cost power generation, but when we have a lot of water our No. 1 priority becomes reducing flood damage risks. This is a perfect example of why TVA lowers the reservoirs to their lowest elevations during the fall and winter months,” Mr. McCormick said.

A graphic depiction of TVA’s operation of the reservoir system is at http://www.tva.com/news/releases/janmar13/averted.html. Information on the river system and specific reservoirs is available on TVA’s Web site at http://www.tva.com/river and on TVA’s free app for the iPad, iPhone and Android devices.  Links to download the apps are available at http://www.tva.com/mobile.  For photos of various TVA dams spilling excess water, visit TVA’s Flickr site at http://www.flickr.com/photos/tennesseevalleyauthority.


Council Discusses Kevin Muhammad Presentation; Hears About New 311 App

The City Council discussed how they would handle Tuesday night’s special presentation from local Nation of Islam leader Kevin Muhammad. The presentation was meant to be a rebuttal to Mayor Andy Berke’s State of the City address. Mr. Muhammad was to be given 20 minutes to present. After receiving several calls from other constituents asking for time to speak, the City Council ... (click for more)

FEMA Only Notifies By Newspaper Advertisement When Flood Zone Changes, City Council Told

When the flood zone map changes, FEMA will only notify constituents with an advertisement in the newspaper. During a Planning and Zoning Committee meeting at the City Council, Councilman Russell Gilbert said that he had some constituents having trouble with flood insurance. The City Council was told when FEMA changes the flood zone map, they advertise it in the newspaper, ... (click for more)

Marvelous News From Central High School

To Roy Exum:     With all the recent news of major dysfunctions within our educational system, I thought I might alert you to something better. About a year ago you ventured up Highway 58 to Central High School to represent your late grandfather, Roy McDonald, as he was honored as a Distinguished Alumnus during the annual Senior Day festivities. I sort of expected ... (click for more)

Roy Exum: Yes, A Social Experiment

JoeySalads, his screen name, is widely known for his funny pranks except for the fact he calls them “social experiments.” So while we are still on the transgender-restroom issue, our boy JoeySalads got a transgender friend to approve his attire before he tried his luck at entering women’s restrooms. I don’t think you’ll be real surprised at what really happened in this video. Click ... (click for more)

Chattanooga FC Hosts Inter-Squad Scrimmage Saturday

Chattanooga FC will hold an Inter-squad match Saturday, May 7th, 7:00pm at Finley Stadium. The event is open to the public and free for all who attend.  The 2016 roster is set! The Inter-squad match will be the first chance for fans to see their CFC team in action. After the game, everyone will have the opportunity to get autographs, take photos, and talk with players, ... (click for more)

Baylor's Kayla Hughes Named FCA Christian Athlete Of The Year

Baylor School softball star, Kayla Hughes, was named the Greater Chattanooga FCA’s Christian Athlete of the Year at the ministry’s annual Day of Champions Sunday afternoon at Ridgedale Baptist Church.  Hughes, who will continue her softball career at Tennessee Tech, was chosen from among twelve high school FCA senior leaders nominated by area schools.  This is the 53rd ... (click for more)