FDR Drive starts at the southern tip of Manhattan at South and Whitehall Streets in the Financial District. It rises from the underground Battery Park Underpass to an elevated viaduct above South Street, with an at-grade connection to South Street at exit 1. The elevated viaduct continues northeast, with an interchange at Brooklyn Bridge at exit 2. The elevated road, also known as the South Street Viaduct, continues until Gouverneur Slip, near the Manhattan Bridge interchange (exit 3), where there are a southbound exit and northbound entrance. From here, the road is at-grade, with a southbound exit/entrance at Grand Street, exit 4.