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Author Topic: I-215 and Redwood Rd  (Read 281 times)

roadguy2

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I-215 and Redwood Rd
« on: February 08, 2018, 12:55:14 AM »

UDOT will do a major project in North Salt Lake to improve traffic flow in I-215 and Redwood Rd. The project should last from early to fall 2018.

Major elements of this project will include:
-A new DDI will be constructed to replace the current diamond interchange between 215 and Redwood, at exit 27.
-The length of I-215 from 2100 North in Salt Lake City to I-15 will be rehabilitated, with replacement of two lanes of concrete in both directions, as well as the asphalt segment on the on-ramp to I-15.
-The entire Davis County length of Redwood Rd will be rehabilitated, and the part between I-215 and NSL Center St will be reconstructed and four-laned.



Project website
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Interstate clinches: 82, 215 (UT), 225, 345, 444
US clinch: 491

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The Ghostbuster

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Re: I-215 and Redwood Rd
« Reply #1 on: February 09, 2018, 06:16:19 PM »

Are there any other interchanges in the State of Utah that are DDIs?
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Zonie

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Re: I-215 and Redwood Rd
« Reply #2 on: February 09, 2018, 06:56:00 PM »

I-15 and UT 34 in St. George.
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Rover_0

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Re: I-215 and Redwood Rd
« Reply #3 on: February 09, 2018, 07:35:37 PM »

Also:

- UT-130 and I-15 at the south Cedar City exit
- US-91 at I-15/84 in Brigham City
- UT-232 and I-15 in Layton
- UT-154 (Bangerter Highway) and UT-201 (IIRC)

They're pretty popular here.
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roadguy2

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Re: I-215 and Redwood Rd
« Reply #4 on: February 09, 2018, 08:18:39 PM »

In addition to the ones stated above, there are a few more:
- 500 South (UT-68) and I-15 in Bountiful
- Main St (UT-145) and I-15 in American Fork
- 500 East (UT-180) and I-15 in American Fork
- Timpanogos Highway (UT-92) and I-15 in Lehi

- UT-232 and I-15 in Layton

That's a SPUI, not a DDI.
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Interstate clinches: 82, 215 (UT), 225, 345, 444
US clinch: 491

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triplemultiplex

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Re: I-215 and Redwood Rd
« Reply #5 on: February 13, 2018, 12:21:18 PM »

UDOT was an early adopter of both SPUI's and DDIs, so they have a bunch of both kinds.  I think they even outnumber 'conventional' service interchange designs in Utah's urban areas.
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i-215

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Re: I-215 and Redwood Rd
« Reply #6 on: February 13, 2018, 11:29:10 PM »

That's true.  The 1990s reconstruction lead to pretty much every interchange on I-15 in Salt Lake County to be a SPUI.  And new ones on Bangerter are all SPUIs.
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roadguy2

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Re: I-215 and Redwood Rd
« Reply #7 on: February 14, 2018, 01:05:38 AM »

UDOT was an early adopter of both SPUI's and DDIs, so they have a bunch of both kinds.  I think they even outnumber 'conventional' service interchange designs in Utah's urban areas.

UDOT seems to like using new designs. Thereís also the continuous-flow intersections (CFIs) on Bangerter and at the 5400 S/Redwood intersection.

There are also at least three Michigan lefts in Utah (which UDOT calls ThrU Turns).

That's true.  The 1990s reconstruction lead to pretty much every interchange on I-15 in Salt Lake County to be a SPUI.  And new ones on Bangerter are all SPUIs.

Which is why itís interesting that when I-80 was reconstructed between State and 13th East, none of the interchanges on that stretch (State, 7th, 13th) were converted to SPUIs. All three are still diamonds.
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Interstate clinches: 82, 215 (UT), 225, 345, 444
US clinch: 491

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