Iowa State Highway 3 is a significant east-west route in the state of Iowa. It stretches approximately 200 miles, connecting the cities of Sioux City and Davenport. The highway serves as an important thoroughfare for local traffic and commerce, facilitating travel across various counties. The highway passes through several towns, including Fort Dodge and Cedar Falls, providing access to local amenities and attractions. It is maintained by the Iowa Department of Transportation, ensuring safe and efficient travel for residents and visitors alike.