In 2011, MDSHA completed a study to examine constructing an interchange at Monocacy Boulevard on the north side of Frederick to replace the present directional crossover intersection. Design work then occurred on a diamond interchange with the municipal highway, which serves as a circumferential arterial in the northeastern part of the city. Monocacy Boulevard was extended west to north–south Thomas Johnson Drive and meet the eastern end of Christophers Crossing, which is a circumferential boulevard throughout northwestern Frederick. As part of this project, US 15's intersection with Hayward Road was removed, resulting in the northern end of US 15's freeway section being extended from MD 26 to Tuscarora Creek. The interchange with Monocacy Boulevard/Christophers Crossing was completed in 2018. In 2015, an interchange opened at Jefferson Technology Parkway.