Smith-Midland Corporation has been awarded a new $7.5 million precast concrete noise wall contract for a Georgia Department of Transportation project. Smith-Midland South Carolina will manufacture more than 4,700 precast noise wall panels, with an Ashlar stone finish on both sides, for the I-285/I-20 interchange project, which is well known for having some of the worst traffic congestion in the country. The precast concrete noise walls that Smith-Midland is producing for the project will help reduce overall noise levels for neighboring homes and businesses along that route just east of Atlanta.