I-670 provides access to John Glenn Columbus International Airport and intersects State Route 315 (SR 315) and I-71 downtown.

In the late 1970s, the Ohio Department of Transportation (ODOT) was unable to complete the Spring–Sandusky streets interchange, linking both sections of the highway, due to budget shortfalls and environmental regulations, leaving I-670 the only uncompleted Interstate in Ohio.

Work on this section also included the High Street cap, a cut-and-cover bridge over the highway featuring shops and restaurants.

[3] In June 2018, a $60-million (equivalent to $71.7 million in 2023[4]) construction project began on an active traffic management system known as SmartLane.

[5][6] The system, running between I-71 and I-270, repurposed a shoulder lane and installed digital overhead signs that would inform motorists when the lane would open and the current speed limit to help reduce congestion.