Maryland Route 602 was the designation for Fort Meade Road, which ran from US 1 in Laurel east to Fort George G. Meade. The highway was a military access project during World War II. The first segment of the new highway, from US 1 to what was then MD 216 near Brock Bridge Road in what is now Maryland City, was started in 1943 and completed in 1944. This segment included a bridge across the Baltimore & Ohio Railroad (now CSX) in Laurel and a bridge across the Patuxent River. The remainder of MD 602, from near Brock Bridge Road to the entrance to Fort Meade near the Little Patuxent River, was completed by 1946. The highway was replaced by an eastward extension of MD 198 in 1963.
