Iowa Department of Transportation

Iowa Department of Transportation
Seal
Iowa DOT logo
Agency overview
FormedApril 13, 1904 (1904-04-13)
Preceding agency
  • Iowa State Highway Commission
JurisdictionState of Iowa
Headquarters800 Lincoln Way
Ames, Iowa
42°01′19″N 93°37′19″W / 42.02194°N 93.62194°W / 42.02194; -93.62194
Employees3,061 (October 2010)
Agency executives
  • Nancy Maher, Chair, Iowa Transportation Commission
  • Scott Marler, Director
Key document
Websiteiowadot.gov

The Iowa Department of Transportation (Iowa DOT) is the government organization in the U.S. state of Iowa responsible for the organization, construction, and maintenance of the primary highway system. Located in Ames, Iowa, DOT is also responsible for licensing drivers and programming and planning for aviation, rail, and public transit.

The organization was created in 1904 as the Iowa State Highway Commission, an extension of Iowa State College in Ames. In 1913, the commission was spun off from the college and became a government organization. In 1974, the highway commission was folded into a larger transportation department with other modes of transportation.