 Maryland Route 5 Business (MD 5 Bus.) is a 1.80-mile (2.90 km) business route that runs along Leonardtown Road between MD 5 in St. Charles and US 301 in Waldorf. The route heads west from MD 5 (Mattawoman Beantown Road) and St. Charles Parkway as a four-lane divided highway with a traffic count of 29,430 vehicles in 2007. It passes by Thomas Stone High School before the route heads into commercial areas. The median ends and MD 5 Bus. gains a center left-turn lane. It crosses CSX ’ s Popes Creek Subdivision before coming to an intersection with MD 925 (Old Washington Road). A short distance later, MD 5 Bus. becomes a divided highway again and ends at US 301 (Crain Highway), where the road continues west as MD 228 (Berry Road).
