http://www.dot.state.mn.us/metro/projects/hwy100slp/pdfs/concepts.pdf (http://www.dot.state.mn.us/metro/projects/hwy100slp/pdfs/concepts.pdf)
Note this is a fairly large pdf file.
Option D appears to be a diverging diamond at TH 100 and Hennepin CSAH 5 (Minnetonka Blvd).
Unfortunately I can't make their open house next week.
The DDI concept is spreading all over the country. There are three DDI's under development in the Atlanta area, one on I-285 and two on I-85. I-285 @ Ashford-Dunwoody Road is currently scheduled to start construction next summer and be completed by the end of October. I-85 @ Jimmy Carter and I-85 @ Pleasant Hill Road will follow.
Whatever they do, I can't wait for them to get rid of the suicide loops from MN 7 onto MN 100. My heart beats a little faster every time I have to go down one of those ramps.
To be fair, with the temporary 3rd-lane project from a few years ago, there's only one "suicide loop" left at 7/100.
Yes, the TH 7 to SB TH 100 is the only true "suicide loop".
However, the ramp from CSAH 5 to NB TH 100 is close. Very tight acceleration lane which ends at an even tighter shoulder.
Both of these are so bad that if I'm on TH 7 (or CSAH 25) and I want to go SB on TH 100, I'll take city streets to CSAH 5. Likewise if I'm on CSAH 5 and I want to go NB on 100, I'll cut over to TH 7. Depending on traffic, of course. If it's 8 am on a Saturday none of these are dangerous.