It stretches north from the Legislative Palace in Aguada to Plaza Fabini in Centro, and is named after Juan Antonio Lavalleja, revolutionary figure and politician, who led the group of the Thirty-Three Orientals in the insurrection for the independence of Oriental Province.

[1] In its beginnings it was called Agraciada Avenue, but in the 1920s the Agraciada Diagonal project was carried out, which consisted of widening the road, which required the demolition of buildings such as the original façade of the Church of Our Lady of the Mount Carmel.

[3] In the 1940s, buildings such as the headquarters of the State Insurance Bank and the National Administration of Fuels, Alcohol and Portland (ANCAP) were erected.

[4][5] Despite being 1.5 kilometres (0.93 mi) long, it carries a large amount of traffic, as it serves as an entrance to the barrio Centro and Ciudad Vieja from the north of the city.

[6] Libertador Avenue crosses Isabella I of Castile Square, located one block from the General Artigas railway station,[7] and is where the President and Vice President parade to Plaza Independencia after taking the oath at the General Assembly in each inauguration.