Skip to Content

TDOT Multimedia Center

Transportation Facts

Transportation is so basic that many people overlook its enormous importance in everyday life. Nearly every item used in homes, workplaces and schools requires a large complex transportation network. TDOT has a responsibility for a multi-modal transportation system that includes:


Highways and Bridges
14,988 miles of roadway
    1,104 miles of interstate
    13,884 miles of state roads
8,291 state-owned bridges
11,449 locally-owned bridges
18 interstate rest areas
14 interstate welcome centers
10 truck weigh stations

Aeronautics
74 public/general aviation airports
5 commercial airports
142 heliports (115 affiliated with medical facilities, eight that can be used for medical purposes and three that are for non-medical purposes)

Transportation Management
Four Transportation Management Centers in Nashville, Chattanooga, Knoxville and Memphis.

HELP Trucks on patrol in all four major urban areas

Waterways
946 main channel miles of navigable rivers

Railroads
18 shortline railroads operating on 842 miles of rail
6 major rail lines operating on 2,177 miles of rail

Public Transit
28 transit (bus, van and light rail)  systems serving all 95 Tennessee's  counties

Bicycle/Pedestrian
4,500 highway miles with 4-foot shoulders to accommodate bicycles
103 Miles of state routes with designated bike lanes
270 miles of greenways, sidewalks and trails
172 miles of designated U.S. Bicycle Routes

What TDOT Doesn't Do:
TDOT does not handle driver's licenses, titling of vehicles or tag renewals. Those  matters are managed by the Tennessee Department of Safety.