The line currently runs from the center of Towson to the Inner Harbor in Downtown Baltimore, serving the Charles Street corridor.
Numerous branches off of Charles Street and the route operating southwest from downtown Baltimore to Riverview via Washington Boulevard have existed over the years.
During the 1990s, the following changes were made along the line: In 2005, as part of the Greater Baltimore Bus Initiative, a comprehensive overhaul plan for the region's transit system, MTA proposed that Route 11 would be modified.
After reaching downtown, buses would operate to Canton rather than Riverview, and service on the current southern end would be replaced by extending Route 36.
[12] This plan was delayed, and in 2006, a revised version was announced in which the northern end would be at the Towson Courthouse rather than GBMC, and a new peak hour branch would be formed to Roland Park to replace Route 61, which was proposed for elimination.