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triplemultiplex:
A couple updates for the ongoing Mitchell Interchange reconstruction and the Zoo Interchange study.

First off in the Mitchell Interchange (I-43/94/894), the long term closure of the ramp following I-43 NB through the interchange (EB->NB physically) has started recently.  This system ramp will be closed for pretty much the rest of the year.  Elsewhere in the project, traffic has been shunted into the future c/d lanes between the Mitchell and College Ave. while the mainline is torn up.  I'm impressed with the area around I-894 and 27th St where they are dropping the grade of the freeway considerably.
NB through the Plainfield Curve, just north of the Mitchell, is in it's final alignment and already a great relief.  Evidence exists for the final lane configuration to get 5 NB lanes coming out of the Mitchell down to 3 by breaking up the Howard and Holt Ave. exits.  Previously, both exits shot off of a c/d lane NB.  Now they have been separated with the Howard Ave. exit by itself and the Holt Ave exit as the starting point for the c/d lane.  Each exit will strip a lane from the freeway NB.

Meanwhile, over at the Zoo Interchange study, WisDOT has released a supplemental DIES with a new alternative for consideration based on feedback from the public.  It's billed as the "reduced impacts" alternative as it takes fewer properties, but still expands the approaching freeways to 8 lanes at a slightly lower design speed.
http://www.dot.wisconsin.gov/projects/sefreeways/zooenviron.htm
There's a PIM next month that I'll probably drop by.  I have a feeling many of the elements from this alternative will make it into the final design.  Most of this new alternative is fairly "oh okay, whatever" with one notable exception; the US 45 interchange with Watertown Plank:
http://www.dot.wisconsin.gov/projects/seregion/zoointrchng/docs/sdeis-ex226.pdf
It would turn this boring ol' diamond interchange into a totally free-flow parclo by incorporating the same hairpin ramps that are going in at I-43/894 and 27th St.  It's very interesting.  I think WisDOT's been getting a lot of feedback from people concerned about access to the large medical campus immediately east of there.  It's an interesting solution, but I'm worried about the spacing between Watertown Plank and Bluemound Rd.  If they were the braid ramps from these two interchanges, we might have a winner.

hobsini2:
At the Zoo Interchange, I haven't heard yet, is WDOT straightening out the through lanes for NB 45?  That slight S curve is always backed up when I drive up to Oshkosh.
As far as the Marquette goes, I thought they were done with this project last year.
And while I am at it, what is the timetable for the Airport Spur ramps to be finished?

mgk920:

--- Quote from: hobsini2 on February 25, 2011, 07:39:24 AM ---At the Zoo Interchange, I haven't heard yet, is WDOT straightening out the through lanes for NB 45?  That slight S curve is always backed up when I drive up to Oshkosh.
As far as the Marquette goes, I thought they were done with this project last year.
And while I am at it, what is the timetable for the Airport Spur ramps to be finished?

--- End quote ---

From what I am seeing in those drawings, yes, US 45 (future I-57?) through that interchange will be straightened out to roughly follow the routing of the present-day southbound side.  One thing that I would definitely bring up in the design hearings is that eastbound left lane drop/traffic shift on I-94 by State Fair Park.  All four of the mainline lanes should continue through.  Ditto the left lane add on the westbound side there.  WisDOT had to fix an identical silly left lane drop on eastbound I-94 in Brookfield a few years ago, too.

Mike

triplemultiplex:
Busy time for I-94 around here.  We've got ourselves a little repaving this year.
http://repave94.org/
Brookfield and Waukesha are getting a fresh coat as well as the area through the Stadium Interchange.  So watch out for that if the Brewer game you're at goes into extras.

hobsini2:
That's why i like using Miller Park Way from National Ave to get to the ballpark.  And leaving I always use Wisconsin Ave and find my way to 94 East and use 794 (Hoan Bridge) just to scare the hell out of my friend.  He has a fear of high bridges.  I found that out on a roadtrip to Penn State when we used the Chicago Skyway. :)

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