Indiana State Road 31 is a major north-south highway in the state of Indiana. It stretches approximately 150 miles, connecting the cities of Indianapolis and South Bend. The road serves as an important route for both local and regional traffic, facilitating travel and commerce across the state. Originally established in the early 20th century, State Road 31 has undergone several improvements and expansions over the years. It features a mix of rural and urban landscapes, providing access to various communities, businesses, and attractions along its route. The highway plays a vital role in Indiana's transportation network.