 The highway was expanded to four lanes through the I-270 interchange and the roundabout with the southbound I-270 ramps were built in 2008.The upgrades to MD 80 were completed in 2009 when the highway was expanded to a four-lane divided highway from MD 355 to Carriage Hill Drive.MD 80 had a trio of auxiliary routes that were created in 2000 when MD 80 was relocated in Urbana.