NASHVILLE, Tenn. -- This noise barrier going up off Interstate 40 and White Bridge Road is a huge relief for neighbors who, for so long, have been annoyed by the sound of interstate traffic. But around Westboro Drive where the wall will stop, complaints from neighbors begin.

Video: Interstate Noise Barriers Don't Guard All

"It's pretty rough, as loud as can be," said Carl Knight, whose home backs up to I-40 in west Nashville.

He said he assumed the barrier would extend to his neighborhood.

"They going to put them down there, they ought to put them up here," he said.

The wall will stop short of the Beacon Square and Charlotte Park area, near the Charlotte Pike exit. Councilman Buddy Baker wants to change that.

"These people can't even hardly talk on the phone, especially in the summertime when they got the doors open," Baker said.

But Tennessee Department of Transportation spokeswoman BJ Doughty said the noise barrier is limited to where there is new construction -- in this case, only the area closest to the exit.

"We are staying in those specific limits," said Doughty. "Those are the areas where we are making changes to the interstate, and that allows us to build noise walls."

Doughty said TDOT does not plan to extend the wall any further. She said for neighbors such as Knight to see a barrier near their home, it will take a separate project.

"For this area to have noise walls, that's going to have to happen if Interstate 40 is widened in that area," said Doughty.

"I'm going to keep on fighting for it," Baker said. "And hopefully we'll get some more stimulus money turned loose where we'll get them on out through here."

There have been noise walls put up in areas where there was no major construction project going on, but TDOT said those neighborhoods qualified through different noise wall programs because the homes were there prior to the interstate being built.