U.S. Route 169 enters the loop in the northwest corner from the Buck O'Neil Bridge, and joins I-70, continuing westward.
Route 9 also provides access to the loop, ending at I-70 after crossing the Heart of America Bridge from North Kansas City.
The west side of the loop was built over a scenic road called Kersey Coates Drive.
It had many affluent homes, and stairs lead down from Case Park immediately to the east.
A March 2010 preliminary study[5] of the Kansas City I-70 corridor made several innovative suggestions to relieve congestion in the downtown area.
In 2022, plans were approved to construct a $160 million cap over a stretch of I-670, on the loop's southern half.
The cap is planned to be topped with a public park called South Loop Link.