It is planned to be upgraded to interstate standards as part of the planned Interstate 69.

This expressway is up to interstate standards (completed August 2007).

Most of the route is being upgraded to a high-speed four-lane divided highway, but not to interstate standards.

According to state transportation officials, the rough cost of a new road built to federal interstate standards is $3 million per mile per lane.

It was constructed beginning in 1952 as a two lane road, but rebuilt beginning in 1974 to interstate standards.

Instead, it was built to interstate standards as Indiana State Road 100.

The only section built of the cancelled I-487, the highway is generally built to interstate standards.

The remainder of the old U.S. 80 section is being rebuilt to current interstate standards, with completion expected in 2014.

For most of its length, it is a controlled access freeway (motorway) conforming to interstate standards.

Highway 41A has been upgraded, nearly to interstate standard.