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Interchanges between two lane roads

Started by thspfc, August 28, 2019, 01:11:18 PM

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PHLBOS

Quote from: jemacedo9 on September 04, 2019, 04:33:22 PMPA 252 south starting at that interchange is a 4 lane arterial...and has been as long as I can remember (late 80s?)
The southernmost point of where it becomes a 4-laner is at the PA 3/Chester Pike intersection.  Based on Historic Aerials, that stretch has been a 4-laner since 1971.  The widening likely coincided with the building of that interchange in Wyola.

Quote from: Beltway on September 04, 2019, 04:53:28 PMI did think about the absence of I-476 then, but it was in planning since 1956, and based on how PA-252 curves to the northwest, I am unsure as to how much traffic relief that I-476 would provide to PA-252.
For points west of the 252 corridor, the opening of I-476 wouldn't have had much of a traffic impact.  But for areas in-between PA 252 & 320, pre-I-476, one would use either road depending on traffic and/or destination.  Even today, there have been times I've used PA 252 en lieu of I-476 coming back from Valley Forge Park due to the traffic along I-76 eastbound between US 202 & I-476 being a parking lot.
GPS does NOT equal GOD


Beltway

Quote from: PHLBOS on September 05, 2019, 08:58:35 AM
Quote from: Beltway on September 04, 2019, 04:53:28 PMI did think about the absence of I-476 then, but it was in planning since 1956, and based on how PA-252 curves to the northwest, I am unsure as to how much traffic relief that I-476 would provide to PA-252.
For points west of the 252 corridor, the opening of I-476 wouldn't have had much of a traffic impact.  But for areas in-between PA 252 & 320, pre-I-476, one would use either road depending on traffic and/or destination.  Even today, there have been times I've used PA 252 en lieu of I-476 coming back from Valley Forge Park due to the traffic along I-76 eastbound between US 202 & I-476 being a parking lot.
From the area around Villanova and Devon, when heading south I typically used US-202 and I-76, granted that was south of Wilmington.  Going to southern Delaware County, the routes would include PA-320 or PA-252 and maybe PA-452.

In any event, both PA-320 and PA-252 look like no effort/plan was ever made to upgrade them into 4-lane arterial routes, given the kinds of right-of-way impacts would occur, and given the plan to build I-476.  Even though there were some serious doubts in the late 1970s and early 1980s that I-476  would ever get completed, PennDOT always did pursue the completion as much as they could.
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Mark68

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Hot Rod Hootenanny

Quote from: Beltway on September 04, 2019, 04:53:28 PM
Quote from: PHLBOS on September 04, 2019, 04:21:09 PM
Based on Historic Aerials, the [Wyola] interchange has existed since 1971.
As for why was such constructed that way early on... such may have been part of an initial plan to upgrade PA 252 into a 4-lane divided highway that never fully materialized.  Keep in mind, due to the absence of I-476 at the time; roads like PA 252 & 320 likely saw more through-traffic usage.
Side bar: how long has Episcopal Academy been there (west of the interchange)?
I first drove it in fall of 1972, and I don't recall any school there then.  I did think about the absence of I-476 then, but it was in planning since 1956, and based on how PA-252 curves to the northwest, I am unsure as to how much traffic relief that I-476 would provide to PA-252.

PennDOT did spend a fortune to build the interchange at PA-320 and US-1 in the late 1970s, and while that was a very congested intersection, that was directly relievable by the planned I-476.


Mind you, PA 252 originally(?) turned right onto St. David Rd and meandered into Wayne (St. David, Brooke, Connstoga, S Wayne, N Wayne) and then north to (almost) King of Prussia
252's routing change might of had more to do with the opening of the 202 bypass between West Chester and KoP.

As for that school, I can't help you PHLBOS. My mom & uncles all attended Radnor Twp. HS during the 1960s.
Please, don't sue Alex & Andy over what I wrote above

PHLBOS

Quote from: Hot Rod Hootenanny on September 05, 2019, 11:10:55 PMMind you, PA 252 originally(?) turned right onto St. David Rd and meandered into Wayne (St. David, Brooke, Connstoga, S Wayne, N Wayne) and then north to (almost) King of Prussia
252's routing change might of had more to do with the opening of the 202 bypass between West Chester and KoP.
FWIW, based on the Wiki account, PA 252's current northern alignment dates back to 1970; just about the time that Wyola interchange was built and the road was widened.

Quote from: Hot Rod Hootenanny on September 05, 2019, 11:10:55 PMAs for that school, I can't help you PHLBOS. My mom & uncles all attended Radnor Twp. HS during the 1960s.
While checking the above on Wiki; I have since found out that the school has been at its current location since 2008.  I knew it was recent; I just wasn't sure how recent.
GPS does NOT equal GOD

keithvh

Quote from: ozarkman417 on September 03, 2019, 07:49:12 PM
There are several along US 400 in Kansas. Some include: US-400xUS-59 in Parsons, US-400xUS-169, and US-400xUS-75.

Another one in Kansas - this up in the North Central part of the state.  US-36 and KS-181, just outside of Lebanon - which itself is very near the geographic center of the Lower 48.

Elm

It's looking like Colorado doesn't have any that fully fit the bill. US 34 and Hwy 39 might be the closest in isolation, but it's mixed with an interchange between I-76 (four lanes) and Hwy 39/52.

One I'd thought qualified is in Julesburg, between US 138 and US 385, which gets 385 over the railroad. Through town, though, US 138-385/1st St has four lanes, with the outer lanes becoming the interchange's southwestern ramps.

There's an interchange that was almost between two two-lane roads in Castle Rock: US 85 and Castle Rock Pkwy/N Meadows Dr, also there to avoid a railroad. During construction of the project that put in the interchange (the "North Meadows extension,"  from near the school to the south up to I-25, including that interchange as well), the town and county decided to build Castle Rock Pkwy with four lanes instead of the planned two.

As it is, there are only two through lanes in each direction, although it's built to accommodate four each way. On the overpass, the island curbs that don't have a colored filling behind them suggest what would move to accommodate more lanes on N Meadows Dr.

Driving underneath, the structure is sort of imposing when you're on the two-lane US 85, but that's kind of cool, too; the design, viaduct-style with visible piers, seems unusual for Colorado, where, at least in my head, most new builds use some sort of wall for support and use bridges sparingly.

ozarkman417

Route 1 has two in Deer Lake, Newfoundland.

Bruce


kphoger

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Crash_It

#60
Here's a partial one...  Lake County V76 and V61 near Hawthorn Woods IL.


County Hwy V61
https://maps.app.goo.gl/B1NW7uTxqagKnRWw9


29897 N Gilmer Rd
https://maps.app.goo.gl/qSjWRTzhtLh69aa4A

TheGrassGuy

Literally every interchange between the Blue Ridge Parkway and a two lane road.
If you ever feel useless, remember that CR 504 exists.

froggie

^ The vast majority of those are not full interchanges though.  They're mainly one- or two-quadrant access roads that have at-grade intersections on the Parkway proper.

TheGrassGuy

If you ever feel useless, remember that CR 504 exists.

WestDakota

North Dakota Examples:

Minot, US 83 Bypass
https://www.google.com/maps/place/Minot,+ND/@48.2400692,-101.3375867,766m/data=!3m1!1e3!4m5!3m4!1s0x52deb78ae5ce7f0d:0xbcc590331b734416!8m2!3d48.2329668!4d-101.2922906
This one soon won't qualify as the bypass is being rebuilt into a four lane road.

Not quite sure if this counts, but at least one other posting had something similar so I am listing it:
US 12 and ND 67 intersection in Scranton, ND
https://www.google.com/maps/place/Scranton,+ND/@46.1453182,-103.1460204,387m/data=!3m1!1e3!4m5!3m4!1s0x532f25b75ed50e57:0x3da59a4fd6bf4f3e!8m2!3d46.1480618!4d-103.14295


stevashe

Some more from Washington are three interchanges each along US 101 in Shelton (at WA 3W Railroad Ave/Shelton Matlock Rd, and Wallace Kneeland Blvd) and in Sequim (at Simdars RdS Sequim Ave, and River Rd).

US 89


TheGrassGuy

If you ever feel useless, remember that CR 504 exists.

US 89

Quote from: TheGrassGuy on December 08, 2019, 06:32:39 PM
SR 29 is not dead end

Okay, does not connect to any other state routes on the west end.

It is a dead end for half the year though, as Ephraim Canyon Road closes in winter.

cl94

There are a handful of unmentioned New York examples:

- NY 18 at NY 104 in Lewiston. Note that NY 18 ends at NY 104 a mile to the southwest.
- US 20 at NY 98 in Alexander. I'm assuming this dates to when US 20 was rerouted here from US 20A in the 1930s. Left turns across US 20 are banned.
- NY 5S at NY 51 in Ilion. NY 5S is a super 2 in this area.
- Bear Mountain Parkway at Highland Avenue in Peekskill. The other two interchanges have 3+ lanes on at least one of the roads involved.
- Bethpage Parkway at Central Avenue/Merritts Road in Bethpage
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pre-1945 Florida route log

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TheGrassGuy

If you ever feel useless, remember that CR 504 exists.

Scott5114

Chickasaw Turnpike/US-177
Chickasaw Turnpike/Dolberg Rd
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3467

US 50 has 3 of them in Illinois . It may have more depending on the design of the Lebanon bypass.

Revive 755

Quote from: 3467 on December 22, 2019, 08:27:34 AM
US 50 has 3 of them in Illinois . It may have more depending on the design of the Lebanon bypass.

Except US 50 widens out to four lanes with a grass median for two of them.
At IL 160
At Breese



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