I asked the very same question. I noticed this years ago north of Houston.
It seems US 59 is slated to become an Interstate, seemingly needing less work to become an interstate, but when that will happen seems to be unknown. I would think any work would be done beyond the city and suburbs first since overpasses and such would need to be built.
I probably should have phrased that differently. I 69 will go around the East side of Memphis on what is currently called Highway 385, which is also built to interstate standards already, and go slightly into Mississippi before crossing the river into AR.
Still study and debate on just what route that Martinsville to Indpls stretch will take. Lots of unhappy residents as KeithE4 might suspect.
A US 41 bypass south of Terre Haute was already built to accommodate an eventual I-69. That doesn't align with SR 37 to Bloomington. I see I-70 from Indy to TH being I-70/I-69, and then a route going from TH to West of Evansville (through IL obviously) into Western KY, and further west from there.
Perhaps there's been an update I've missed. My understanding is that environmental studies are continuing on Section 6, the route from Martinsville to Indianapolis. it's likely to be an upgrade for SR 37, but that's not confirmed. There are five possible routes, including a couple that run north from Martinsville and west of Mooresville connecting with I-70.
Google searched and found a fact sheet from the state dated 1/11/16. If I'm reading it correctly, it will be 2018 before the final route is confirmed.
http://www.in.gov/indot/projects/i69/files/Fact_Sheet_1-11-16.pdf
"I see"...as in I predict...or is there something online you see suggesting that route? If so, it's not true.
There is already an I-69, finished, opened and handling traffic between US 41 south of Evansville and SR 37 south of Bloomington. Construction is underway on improving SR 37 to interstate standards between Bloomington and Martinsville. A final phase six of that route is still in planning with five possible routes, only one of which follows the existing SR 37 between Martinsville and I-465 on the southside of Indianapolis. Two of the potential routes head north from Martinsville and west of Mooresville. Those two routes then connect with I-70 in Hendricks County and follow I-70 to its interchange with I-465, east of Indianapolis International Airport.
Yes, that is basically the Purchase Parkway, and part of the Western Kentucky Parkway in the Bluegrass State, and will make a hard left in, I think, Muhlenberg County to go due north to Evansville.Plans are for I 69 to use sections of Purchase Parkway in KY and Highway 51 in TN that are already built to interstate standards and go through Memphis into AR and eventually tie into the Texas leg.
269 will need the cooperation of MDOT for completion, as it will go into Mississippi.I need to correct a couple of other things because of plan changes. In Memphis I 69 will follow sections of I 40, 240 and 55 into MS. Highway 385 will be a loop called I 269, and I 69 will continue in MS following on or near Highway 61 to a new bridge near Greenville.
Okay, correction on the above. That should be Hopkins County (Madisonville area), and at that hard left, it will join the Pennyrile Parkway, which runs between Hopkinsville and Evansville, but I-69 will only use the Madisonville-Evansville stretch.Yes, that is basically the Purchase Parkway, and part of the Western Kentucky Parkway in the Bluegrass State, and will make a hard left in, I think, Muhlenberg County to go due north to Evansville.