Regional Boards > Great Lakes and Ohio Valley
I-70/71 Columbus Crossroads
6a:
It's my understanding that they are upgrading this end so that when the *real* work starts (70/71) this will be the alternate...almost sounded like the split would be closed.
vtk:
--- Quote from: Revive 755 on September 15, 2011, 10:12:07 PM ---So WB I-670 is getting shifted south to follow the EB lanes?
--- End quote ---
Actually the opposite, but only temporarily. In the final design as shown in the graphic, WB I-670 stays where it is, EB I-670 gets shifted slightly north overflying the ramps to/from Jack Gibbs Blvd (& Cleveland Ave), and the bridge occupying essentially the same space as current I-670 EB is a combination of I-670EB > I-71NB + Cleveland Ave > I-670EB. That's not the current I-670 EB bridge, which cannot be retained due to its pier locations and the reconfiguring of I-71 below it.
The changes to I-670 EB are a correction to a flawed design from the 1990s, and are probably only justified because the reconfiguration of I-71 requires replacing that I-670 EB bridge anyway.
--- Quote from: Hot Rod Hootenanny on September 15, 2011, 11:01:33 PM ---There's a couple a things askew with that image. There is no connection between I-71 NB to I-670 WB. On top of that, the "proposed" WB 670 just runs over the existing 71 NB to 670 WB connector (that somehow doesn't connect to 71 NB). The ramps from I-71 SB (and I-670 WB) to Leonard Ave/Cleveland Ave (Ft. Hayes) have disapeared too
--- End quote ---
The only thing "wrong" with that image is it needs some annotation. (I'll try to do that soon.) What you interpret as the proposed WB 670 is actually the new EB 670 as explained above in this post. The connections between the North Innerbelt and East Innerbelt aren't well-portrayed in this image; if you could pan down, you'd see some braiding. Finally, the ramp from SB I-71 to Cleveland Ave via Jack Gibbs Blvd is indeed gone, but the corresponding exit from I-670 WB is still there.
--- Quote from: thenetwork on September 16, 2011, 01:49:47 AM ---Here is my question: What is so bad about the current I-71/I-670 interchanges that they have to pour a quarter of a billion dollars to re-build it?
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This project isn't really about the I-71/670 junction. It's about reconfiguring and modernizing I-71, with some improvements to I-670 as a "while we're at it, we might as well..." kind of deal. As additional projects kick in over the next several years, the downtown portions of I-70 and I-71 will be drastically reconfigured, modernized, and made more safe. As another "while we're at it" deal, neighborhoods will be reconnected and the corridor will be beautified.
--- Quote from: 6a on September 16, 2011, 03:51:09 AM ---It's my understanding that they are upgrading this end so that when the *real* work starts (70/71) this will be the alternate...almost sounded like the split would be closed.
--- End quote ---
Actually, at least for EB traffic, the current 71/670 interchange would work better as an alternate to I-70 than the reconfigured one. I think when they get to the nitty gritty of the South Innerbelt, through traffic will probably be maintained as two lanes each way and no exits.
6a:
This kinda shows what's going on (skip to page 121.) You can see the braiding mentioned as well as the new exits from 71. Actually you can see the whole project if you scroll down lol. It does appear the exit from WB 670 to NB 71 will stay as is.
--- Quote from: Revive 755 on September 15, 2011, 10:12:07 PM ---So WB I-670 is getting shifted south to follow the EB lanes?
I don't know about the proposed design; it just seems that it would be better to try to relocate EB I-670 northward to follow the WB lanes and try and then either try for a stack interchange, or downgrade the current EB lanes to provide for EB to SB and NB to WB movements.
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The entire project is surrounded by historic properties. The thing in the middle is Ft. Hayes which from what I can tell can't have a pebble disturbed. I'd imagine there just isn't room to do a northward shift.
vtk:
Here's my annotated version of that pictorial rendering:
--- Quote from: 6a on September 17, 2011, 12:32:28 PM ---It does appear the exit from WB 670 to NB 71 will stay as is.
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Technically, it will be moved about 50 feet southward of the current I-670 EB lanes, and more noticeably, it will become a right-side exit.
6a:
--- Quote from: vtk on September 17, 2011, 12:44:19 PM ---Technically, it will be moved about 50 feet southward of the current I-670 EB lanes, and more noticeably, it will become a right-side exit.
--- End quote ---
Isn't it right side now? At any rate, do you have any maps or drawings showing the finished project? I was bouncing around ODOT's site today and either I'm dumb or there is just too much bullshit and malarkey to wade through...I just can't seem to find anything showing the completed design.
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