Maryland Route 176 (MD 176) is a state highway in the U.S. state of Maryland. Known as Dorsey Road, the highway runs 5.68 miles (9.14 km) from the end of state maintenance in Hanover east to MD 648 in Glen Burnie. MD 176 is a mostly four-lane highway that parallels MD 100 and forms the southern portion of the Airport Loop, a circumferential highway around Baltimore/Washington International Thurgood Marshall Airport (BWI Airport) that connects the airport with various airport-related services. The highway serves as the main connection between the Airport Loop and Interstate 97 (I-97).