Stubs at western end of I-840

[snowc]

What is/was the purpose of these (abandoned?) highway/ramp stubs at the western end of I-840 at I-40, southwest of Nashville? Are there long-term plans (either proposed or cancelled) to extend I-840 even further northwest? Not like it needs an extension - the route is already so long that it isn't really an efficient bypass (think I-275 in Cincinnati). I also noted that the eastern terminus doesn't have any stubs - it's a regular trumpet interchange.

Like this interchange without the stubs? This is I-690 that WAS going to be extended eastward but opposition decided not to do it. 

Anyone else having issues with snowc's images?  Looking at the post, it appears that the URL goes instead to a page on Google Drive, which prompts for an account sign-in.

Fixed. Now you will see the image and it will instead point to Imgur.