Shortest overlap

Started by bugo, August 20, 2017, 10:41:08 PM

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bugo

The US 49/64 duplex in Fair Oaks, Arkansas is about 150 feet. Northbound US 49 turns right onto eastbound US 64, crosses a railroad track, then turns left and heads north towards Jonesboro. Are there any duplexes shorter than this one?


jp the roadgeek

US 5 and CT 150 have a 0.01 mi. (50 feet or so) overlap.  As CT 150 North (cardinal direction west) crosses US 5, it becomes a one-way portion of Hall Ave. for one block passing by Wallingford Amtrak Station.  Southbound traffic must divert onto South Cherry St and Quinnipiac Ave (both 2 way).  The official overlap (about 50 feet) is for northbound traffic to bend slightly to cross US 5 to Hall Ave.  Here is a GSV: https://goo.gl/maps/ffSE8BGSc992


Other overlaps in CT less than 0.1 mi.:

CT 2 and CT 184 0.02 mi.
CT 83 and CT 190 0.02 mi.
CT 122 and CT 243 0.02 mi.
CT 138 and CT 169 0.02 mi.
US 1 and CT 122 0.03 mi.
CT 25 and CT 133 0.03 mi.
CT 80 and CT 81 0.03 mi.
CT 79 and CT 80 0.04 mi.
CT 83 and CT 140 0.04 mi.
US 202 and CT 63 0.04 mi.
CT 17 and CT 22 0.06 mi.
CT 179 and CT 219 0.06 mi.
US 5/CT 15/CT 287 0.07 mi.
CT 16 and CT 85 0.07 mi.
CT 115 and CT 313 0.07 mi.
CT 49 and CT 165 0.08 mi.
CT 71A and CT 372 0.08 mi.
US 202/CT 10/CT 189 0.09 mi.
Interstates I've clinched: 97, 290 (MA), 291 (CT), 291 (MA), 293, 295 (DE-NJ-PA), 295 (RI-MA), 384, 391, 395 (CT-MA), 395 (MD), 495 (DE), 610 (LA), 684, 691, 695 (MD), 695 (NY), 795 (MD)

bugo


NE2

Quote from: jp the roadgeek on August 21, 2017, 12:19:15 AM
US 5 and CT 150 have a 0.01 mi. (50 feet or so) overlap.  As CT 150 North (cardinal direction west) crosses US 5, it becomes a one-way portion of Hall Ave. for one block passing by Wallingford Amtrak Station.  Southbound traffic must divert onto South Cherry St and Quinnipiac Ave (both 2 way).  The official overlap (about 50 feet) is for northbound traffic to bend slightly to cross US 5 to Hall Ave.  Here is a GSV: https://goo.gl/maps/ffSE8BGSc992
There's no way in hell that's an actual overlap. CTDOT is using GIS data blindly without looking at actual conditions.
pre-1945 Florida route log

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DandyDan

Don't know how many feet it is, but IA 17 and IA 210 go for a block in Madrid.
MORE FUN THAN HUMANLY THOUGHT POSSIBLE

MNHighwayMan

Quote from: DandyDan on August 21, 2017, 03:59:19 AM
Don't know how many feet it is, but IA 17 and IA 210 go for a block in Madrid.

Measuring it in Google Earth gives me a distance of ~400 ft.

jeffandnicole

Quote from: jp the roadgeek on August 21, 2017, 12:19:15 AM
US 5 and CT 150 have a 0.01 mi. (50 feet or so) overlap.  As CT 150 North (cardinal direction west) crosses US 5, it becomes a one-way portion of Hall Ave. for one block passing by Wallingford Amtrak Station.  Southbound traffic must divert onto South Cherry St and Quinnipiac Ave (both 2 way).  The official overlap (about 50 feet) is for northbound traffic to bend slightly to cross US 5 to Hall Ave.  Here is a GSV: https://goo.gl/maps/ffSE8BGSc992

That's an intersection.  Not an overlap.

Max Rockatansky

The shortest one I frequent in California (and off the top of my head I don't know if this is the shortest) would be CA 120 on US 395 for three miles.  I want to say CA 3 on CA 299 in Weaverville is just slightly longer and I'm sure that some of the multiplexes with CA 1 and US 101 (if they are actually signed) are near that mileage territory also.

roadman65

US 422 and PA 743 used to be for one short block in Hershey, PA.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe

MNHighwayMan

MN-22 and MN-19 overlap MN-5 in Gaylord for two blocks (about 740 feet).

Best one though is probably the one in Benson. MN-9 overlaps US-12 for one whole whopping block: about 370 feet.

LM117

The one I'm most familiar with (because I grew up there) is US-117 and NC-222 in Fremont, NC. They overlap for one block.
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Eth

Quote from: Max Rockatansky on August 21, 2017, 06:17:51 AM
The shortest one I frequent in California (and off the top of my head I don't know if this is the shortest) would be CA 120 on US 395 for three miles.  I want to say CA 3 on CA 299 in Weaverville is just slightly longer and I'm sure that some of the multiplexes with CA 1 and US 101 (if they are actually signed) are near that mileage territory also.

US 101/CA 2 appears to be 2.7 miles.

The shortest one near me is probably GA 20/GA 81 in Loganville, around 1250 feet. US 19/US 41/US 78/US 278/GA 3/GA 8 is slightly longer, about 1500 feet.

hotdogPi

MA 97/125 in Haverhill seems to be about 300 feet.
Clinched, minus I-93 (I'm missing a few miles and my file is incorrect)

Traveled, plus US 13, 44, and 50, and several state routes

I will be in Burlington VT for the eclipse.

froggie

Per VDOT, the VA 178/180 overlap on the Eastern Shore is 0.03mi.  Measuring it out on Google Earth, centerline to centerline, gives me about 131 feet.

jp the roadgeek

Quote from: jeffandnicole on August 21, 2017, 06:11:08 AM
Quote from: jp the roadgeek on August 21, 2017, 12:19:15 AM
US 5 and CT 150 have a 0.01 mi. (50 feet or so) overlap.  As CT 150 North (cardinal direction west) crosses US 5, it becomes a one-way portion of Hall Ave. for one block passing by Wallingford Amtrak Station.  Southbound traffic must divert onto South Cherry St and Quinnipiac Ave (both 2 way).  The official overlap (about 50 feet) is for northbound traffic to bend slightly to cross US 5 to Hall Ave.  Here is a GSV: https://goo.gl/maps/ffSE8BGSc992

That's an intersection.  Not an overlap.

ConnDOT does classify it as an overlap because northbound CT 150 traffic has to head a smidgeon north in crossing over US 5.  A couple of the other ones on my list are traffic circle overlaps.

http://www.ct.gov/dot/LIB/dot/Documents/dpolicy/hwylog/hwylog.pdf
Interstates I've clinched: 97, 290 (MA), 291 (CT), 291 (MA), 293, 295 (DE-NJ-PA), 295 (RI-MA), 384, 391, 395 (CT-MA), 395 (MD), 495 (DE), 610 (LA), 684, 691, 695 (MD), 695 (NY), 795 (MD)

Mapmikey

Some will probably classify this as an intersection as well, but US 220-250 intersection in Monterey VA is offset by 31 ft - https://goo.gl/maps/u9zCsFTrYN52


ekt8750

The I-295/NJ 42 concurrency is literally 1/10 of a mile. It though isn't long for this world.

jwolfer

Quote from: ekt8750 on August 21, 2017, 10:42:39 AM
The I-295/NJ 42 concurrency is literally 1/10 of a mile. It though isn't long for this world.
I think Route 42 ended at the 295 junction.. West/north of there it is Route 76..

Hisorically  route 42 was the entire North South freeway and perhaps in common parlance it is all called Route 42 still.

LGMS428


cpzilliacus

Quote from: Mapmikey on August 21, 2017, 09:59:59 AM
Some will probably classify this as an intersection as well, but US 220-250 intersection in Monterey VA is offset by 31 ft - https://goo.gl/maps/u9zCsFTrYN52

Yes, that is a pretty short "jog" for U.S. 220.
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cpzilliacus

I-83 and I-695 have a pretty  short overlap in  Baltimore County, Maryland. 

By the most-generous interpretation of the Highway Location Reference, the overlap is about 0.39 miles long.
Opinions expressed here on AAROADS are strictly personal and mine alone, and do not reflect policies or positions of MWCOG, NCRTPB or their member federal, state, county and municipal governments or any other agency.

jeffandnicole

Quote from: ekt8750 on August 21, 2017, 10:42:39 AM
The I-295/NJ 42 concurrency is literally 1/10 of a mile. It though isn't long for this world.

They aren't concurrent now.  While they run parallel to each other, they are on their own separate roadways and thus don't overlap.

(When they were concurrent, they ran together for approximately 1/4 mile)

TEG24601

Prior to INDOT's (idiotic) removal of most routes from Lafayette, SR-25 duplexed with US-52 for about 500ft between SR-38 and Teal Rd.
They said take a left at the fork in the road.  I didn't think they literally meant a fork, until plain as day, there was a fork sticking out of the road at a junction.

formulanone

FL 80 and FL 29 overlap together in La Belle for 0.067 mile (353 feet), according to FDOT's straight-line diagram.

Google Maps makes it look like 200 feet, so perhaps part of the intersection's width from end-to-end, plus the associated turning lanes are accounted for?

jakeroot

Northeast of Puyallup, WA, the wrong-way concurrencies of highways 167 and 161 last anywhere from .25 to .5 mile(s). It's a stretch of freeway, so I'm not sure where to draw the line in terms of which exit and entrance ramps count towards overall mileage. I'm sure there's a webpage that lists the exact length of the concurrency on WSDOT's website, but I cannot be bothered. Even considering the longest measurement, a half mile overlap has to be in the top five for Washington. Particularly interesting since it's a freeway.

Bitmapped

Quote from: cpzilliacus on August 21, 2017, 11:16:43 AM
Quote from: Mapmikey on August 21, 2017, 09:59:59 AM
Some will probably classify this as an intersection as well, but US 220-250 intersection in Monterey VA is offset by 31 ft - https://goo.gl/maps/u9zCsFTrYN52

Yes, that is a pretty short "jog" for U.S. 220.

I don't know why the roads were built with an offset, but it functions as a single intersection.



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