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National Boards => General Highway Talk => Topic started by: peterj920 on September 29, 2016, 01:02:54 AM

Title: Interchanges where 2 lane has ramps to a multilane road
Post by: peterj920 on September 29, 2016, 01:02:54 AM
https://www.google.com/maps/@45.5488999,-90.3154614,3a,60y,279.73h,83.16t/data=!3m6!1e1!3m4!1sWEsGAwsysi-bzMajz_w_Iw!2e0!7i13312!8i6656?hl=en

Above I have a link to the Wis 13 and US 8 interchange.  Wis 13 is 2 lanes while US 8 is 4 lanes.  The interchange gave priority to Wis 13 with only 2 lanes despite making US 8 four lanes in the interchange area.  What are some other interchanges that have this situation?

National Parkways such as the Natchez Trace Parkway do not count since they're mostly Super 2's built by the National Park Service.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: lordsutch on September 29, 2016, 01:16:35 AM
TN 100 at TN 18 (https://www.google.com/maps/@35.3669769,-88.9073928,15.53z) sort-of fits; TN 18 is planned to be widened from US 45 south to US 64.

I think most of the examples you're going to find are Super 2's though.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: WillWeaverRVA on September 29, 2016, 04:17:44 PM
MD 90 has an interchange with US 113 (https://www.google.com/maps/@38.3773296,-75.2063313,1131m/data=!3m1!1e3), which is 4 lanes divided.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: BrianP on September 29, 2016, 04:52:45 PM
US 220 at US 158 in NC was like this but that's being reconstructed.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: TheStranger on September 29, 2016, 06:49:00 PM
Route 154 at Route 192, Santa Barbara.

https://www.google.com/maps/place/Foothill+Rd+%26+Cieneguitas+Rd,+California+93110/@34.4508299,-119.7630678,504m/data=!3m1!1e3!4m5!3m4!1s0x80e96acca02aaf15:0x520733ba86389d73!8m2!3d34.4514845!4d-119.7598487
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: jp the roadgeek on September 29, 2016, 07:02:16 PM
Have one from a 2 lane road to a 3 lane road where CT 10 meets US 6 in Farmington.  There is only a single ramp from CT 10 north to US 6 east, but CT 10 is a 2 lane road while US 6 is 3 lanes (2 east, 1 west) where they meet. 

And there are countless numbers of these in NJ.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: bzakharin on October 06, 2016, 03:23:12 PM
If I misunderstood, the OP wanted an interchange where the multilane road allows a left turn onto a ramp entering a two-lane road. I don't know anything like that in NJ. If it's just a full interchange with no median breaks then yes, plenty of those in NJ.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: NE2 on October 06, 2016, 04:34:12 PM
Essentially the two-lane road has to be the freeway through the interchange, but cannot be a freeway on ether side.

The Santa Barbara example doesn't count only because SR 154 is officially a freeway (and signed as such).
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: Brandon on October 06, 2016, 05:10:15 PM
US-30 and IL-31 in Montgomery, IL (https://goo.gl/maps/L5ou8dNYvFM2).  US-30 is a two-lane west of the interchange, and until recently, was a two-lane east of the interchange with a four-lane bridge over the Fox River.  IL-31 is six-lanes through the interchange.  Should US-30 be upgraded further, it will be a six-lane yielding to a four-lane.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: plain on October 06, 2016, 07:06:27 PM
Quote from: BrianP on September 29, 2016, 04:52:45 PM
US 220 at US 158 in NC was like this but that's being reconstructed.

There were a lot of super 2's in North Carolina at one point  (mostly town by-passes) but I don't think there's hardly any left today. That interchange you mentioned might very well be the last one. I could be wrong though
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: hotdogPi on October 06, 2016, 08:59:09 PM
What about MA 125 and MA 28?
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: vtk on October 07, 2016, 09:41:33 AM
US 42 at US 40. Especially before the rebuild a few years ago.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: cbeach40 on October 07, 2016, 10:31:52 AM
In Ontario, a 2-lane Hwy 3 (staged freeway) at 4-lane First Ave, St. Thomas, and the 3-lane Hwy 34 at CR-174 (formerly Hwy 17) at Hawkesbury.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: freebrickproductions on October 09, 2016, 06:41:50 PM
Redstone Arsenal in Huntsville, AL has an example of this:
https://www.google.com/maps/@34.6471221,-86.652404,652m/data=!3m1!1e3?hl=en
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: SectorZ on October 10, 2016, 06:41:25 PM
Quote from: 1 on October 06, 2016, 08:59:09 PM
What about MA 125 and MA 28?

Isn't that the opposite of what the OP was looking for, as 28 is 4 lanes where as 125 is 2, and 125 involves the stops and turns to get onto the ramps as opposed to 28.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: NE2 on October 12, 2016, 09:41:41 AM
Forgot about one near me: FL 19 at US 27 near Groveland. No idea why it was done this way.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: ET21 on October 12, 2016, 10:21:06 PM
US-12/20 95th street and IL-43 Harlem Ave
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: NE2 on October 12, 2016, 11:39:45 PM
Quote from: ET21 on October 12, 2016, 10:21:06 PM
US-12/20 95th street and IL-43 Harlem Ave
Which one is two lanes? (Neither.)
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: dgolub on October 13, 2016, 09:24:26 AM
Quote from: peterj920 on September 29, 2016, 01:02:54 AM
National Parkways such as the Natchez Trace Parkway do not count since they're mostly Super 2's built by the National Park Service.

What about state parkways?  If they count, then the Bethpage Parkway on Long Island is a super-2 and has an interchange with the four-lane Hempstead Turnpike (NY 24), which would probably match what you're describing.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: ET21 on October 13, 2016, 07:30:37 PM
Quote from: NE2 on October 12, 2016, 11:39:45 PM
Quote from: ET21 on October 12, 2016, 10:21:06 PM
US-12/20 95th street and IL-43 Harlem Ave
Which one is two lanes? (Neither.)

Unless you really want to be picky on aux lanes and ramp lanes, 95th is two lanes from Harlem Ave westward. Harlem is already two lanes through that stretch.
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: NE2 on October 13, 2016, 08:53:22 PM
Quote from: ET21 on October 13, 2016, 07:30:37 PM
Quote from: NE2 on October 12, 2016, 11:39:45 PM
Quote from: ET21 on October 12, 2016, 10:21:06 PM
US-12/20 95th street and IL-43 Harlem Ave
Which one is two lanes? (Neither.)

Unless you really want to be picky on aux lanes and ramp lanes, 95th is two lanes from Harlem Ave westward. Harlem is already two lanes through that stretch.

I count 4 lanes...
Title: Re: Interchanges where 2 lane has ramps to a multilane road
Post by: ET21 on October 13, 2016, 09:22:32 PM
Quote from: NE2 on October 13, 2016, 08:53:22 PM
Quote from: ET21 on October 13, 2016, 07:30:37 PM
Quote from: NE2 on October 12, 2016, 11:39:45 PM
Quote from: ET21 on October 12, 2016, 10:21:06 PM
US-12/20 95th street and IL-43 Harlem Ave
Which one is two lanes? (Neither.)

Unless you really want to be picky on aux lanes and ramp lanes, 95th is two lanes from Harlem Ave westward. Harlem is already two lanes through that stretch.

I count 4 lanes...

2 lanes each direction.... I realized I read the wording in the topic title wrong.