The IRT Dyre Avenue Line is a rapid transit line in the Bronx, New York City. It is part of the New York City Subway system and is designated as the 5 train. The line runs from East 180th Street to Dyre Avenue, covering a distance of approximately 2.4 miles. Opened in 1912, the IRT Dyre Avenue Line features several elevated stations, providing access to neighborhoods in the Bronx. It connects with other subway lines and bus routes, facilitating transportation for residents and visitors. The line is known for its scenic views and serves as an important transit option in the area.