 The first section of the Frederick Freeway opened from US 40 (now MD 144) east of Frederick to a temporary half-cloverleaf interchange with Patrick Street in 1956; this section featured a cloverleaf interchange with US 340.The remainder of the Frederick Freeway from Patrick Street to MD 26 was placed under construction in 1956.The highway was constructed as a two-lane freeway from just south of its interchange with Rosemont Avenue to its northern end near Hayward Road, where the freeway tied into existing US 15 at Harmony Grove.