An intermediate interchange with US 50 provides access to southern Jackson County and to Raytown to the north via Route 350, a former alignment of US 50 before the construction of I-470.

A rail line belonging to Kansas City Southern Railway passes under the freeway west of the interchange.

[5] Crossing into urbanized Lee's Summit, the Metropolitan Community College - Longview is accessible from the View High Drive interchange.

The western line once belonged to the Chicago, Rock Island and Pacific Railroad and now is a rail trail after being sold to Jackson County.

[4] US 50 leaves the freeway and travels southeast as I-470 curves to the north near the Lee's Summit Municipal Airport.

US 40 is named after Corporal Michael E. Webster, a Missouri State Highway Patrol officer who was killed in the line of duty by a drunk driver.

[6] Every three years, the Missouri Department of Transportation (MoDOT) conducts a series of surveys on its highways in the state to measure traffic volume.

[10] Plans for a freeway linking southeast Kansas City to Independence were first published in 1955 in a document titled General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas.

[19] In July 2010, MoDOT closed the westbound lanes of I-470 near the Grandview Triangle due to large cracks that formed in the roadway.

[20] A buildup of ground water underneath the westbound lanes caused a 42-foot-high (13 m) retaining wall to fall or fail.