Palmer Engineering served as the Lead Design Consultant on the Design-Build Team (DBT) for the on-going project to rebuild Graves Road from KY-20 to KY-237 and construct a new Double Crossover Diamond (DCD) Interchange for I-275. The Eaton Asphalt DBT was awarded the selection by KYTC District 6 in August 2019.

This project won a National Recognition Award in the American Council of Engineering Companies (ACEC) 2016 Engineering Excellence Awards. Palmer Engineering and KYTC District 12 were recognized by the American Society of Highway Engineers (ASHE) for the Pike County, US 460 project, from US23 south of Pikeville to KY 195 in Marrowbone, which opened to traffic in December 2014. This $250 million project won in the Over $5 Million Construction Improvement Award Category in 2015.

Palmer Engineering prepared plans for the replacement of the 1930s vintage, 27-span continuous concrete slab bridge that carries US 20 over two lines of Norfolk Southern railroad tracks. The crossing was complicated by a high degree of skew between the railroad lines and the highway, as well as the need for the new bridge to span two additional railroad lines that may be added in the future.