"Also, Hamilton County Mayor Jim Coppinger received the OK from the county commission to try for $2.5 million in federal grant money to help fund the project."
Just what is the source of that money, HUD? Check it out very carefully for strangling strings. Look at Tuscaloosa, AL and all the restrictions they unwittingly accepted while swallowing the federal money hook after the recent tornadoes.
Follow the money and aggressively insist on seeing who will benefit from this excercise.
With Chattanooga in the lead, how long before we have a "rain tax" on the entire 16 county region?