After a sign fell onto a Tennessee interstate highway in early July, drivers can breathe a little easier knowing this area’s signs are safe, according to transportation officials.

TDOT bridge inspection crews have completed their inspection of overhead road signs in Hamilton County and the surrounding 23 counties that make up TDOT’s region 2.

“We are through with our sign inspections in the 24-county Region Two area,” Jennifer Flynn, TDOT community relations officer based in Chattanooga, said in an e-mail. “Fortunately, there were no problems found with our signs.”

A cantilever sign — which is supported by a single pole and extends over a couple of highway lanes — collapsed July 7 on Interstate 65 south in Franklin, Tenn., causing delays for motorists and a three-car accident. The sign weighed an estimated 15,000 pounds and did not strike any moving vehicles.

TDOT is inspecting all cantilevered highway signs over a 30-day period, Ms. Flynn said earlier in July when the emergency inspection began.

TDOT’s Region 2 includes Bledsoe, Bradley, Cannon, Clay, Coffee, Cumberland, Dekalb, Fentress, Franklin, Grundy, Hamilton, Jackson, Marion, McMinn, Meigs, Overton, Pickett, Polk, Putnam, Rhea, Sequatchie, Van Buren, Warren, and White counties.

One weakened sign has been identified and was replaced on Interstate 26 in Kingsport, Tenn, according to TDOT. Officials attributed the Franklin incident to worn-out metal, and said it was possible the continuous exposure to wind and tractor-trailer drafts might have put added stress on the sign.