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Author Topic: Interchanges between two lane roads  (Read 2015 times)

PHLBOS

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Re: Interchanges between two lane roads
« Reply #50 on: September 05, 2019, 08:58:35 AM »

PA 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.

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.
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.
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Beltway

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Re: Interchanges between two lane roads
« Reply #51 on: September 05, 2019, 09:30:59 AM »

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.
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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Re: Interchanges between two lane roads
« Reply #52 on: September 05, 2019, 01:54:54 PM »

US 26 & US 101 near Seaside, OR.
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Hot Rod Hootenanny

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Re: Interchanges between two lane roads
« Reply #53 on: September 05, 2019, 11:10:55 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.
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PHLBOS

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Re: Interchanges between two lane roads
« Reply #54 on: September 06, 2019, 11:41:27 AM »

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.
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.

As 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.
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keithvh

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Re: Interchanges between two lane roads
« Reply #55 on: September 15, 2019, 09:45:28 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.
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Elm

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Re: Interchanges between two lane roads
« Reply #56 on: September 21, 2019, 12:12:34 AM »

Itís looking like Colorado doesnít have any that fully fit the bill. US 34 and Hwy 39 might be the closest in isolation, but itís mixed with an interchange between I-76 (four lanes) and Hwy 39/52.

One Iíd 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 interchangeís southwestern ramps.

Thereís 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 ďNorth Meadows extension,Ē 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 donít 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.
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ozarkman417

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Re: Interchanges between two lane roads
« Reply #57 on: September 24, 2019, 09:08:32 AM »

Route 1 has two in Deer Lake, Newfoundland.
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Bruce

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Re: Interchanges between two lane roads
« Reply #58 on: September 24, 2019, 08:30:53 PM »

kphoger

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Re: Interchanges between two lane roads
« Reply #59 on: September 24, 2019, 08:50:43 PM »

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Crash_It

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Re: Interchanges between two lane roads
« Reply #60 on: September 26, 2019, 10:02:49 PM »

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
« Last Edit: September 26, 2019, 10:05:50 PM by Crash_It »
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