We have a forum already that is one county state highways. That inspired me to have one about a route or road that enters one county twice.
In Florida we have both FL 434 and FL 436 that enter Orange County twice with Seminole County in between.
US 441 briefly enters Seminole County with it also being in Orange County twice.
In New Jersey, we have NJ 23 that enters both Morris and Passaic Counties twice.
I-78 enters Union County and Essex County twice. It briefly enters Essex County where CR 577 crosses over with it being Union on both sides, and then in Newark its in Essex for five miles.
California state route 166 crosses between Santa Barbara and San Luis Obispo counties at least five times. it's a river crossing each time, but I cannot remember which river.
on a related note, I-8 crosses between San Diego and Imperial counties at least three times, but that is due to a simple north-south county line being crossed by a winding mountain road. (additional bonus: I believe the westbound carriageways cross two more times than the eastbound ones!)
I-49 weaves in and out of Evangeline Parish multiple times, mixing with Avoyelles and St. Landry Parishes.
Illinois has several, including some interstates. Note how often Cook and DuPage Counties are involved.
I-290: Cook -> DuPage -> Cook
I-355: Will -> Cook -> DuPage (barely and unmarked) -> Will -> DuPage
US-20: Cook - > DuPage -> Cook
US-30 (eastbound only): Kane -> Kendall -> Kane -> Kendall
IL-19: Cook -> DuPage -> Cook
IL-49 (northbound only): Vermilion -> Champaign -> Vermilion
IL-83: Cook -> DuPage -> Cook
IL-123: Sangamon -> Menard -> Sangamon
IL-267: Jersey -> Macoupin -> Jersey
WI 29/32 NW of Green Bay in Brown County, clips the NE corner of Outagamie County then re-enters Brown County.
http://www.wisconline.com/counties/brown/map.html
I-84 enters Tolland County, CT twice, separated by a bit of Windham County.
US-6 zig-zags across the Tolland/Windham county line a couple times near Willimantic.
I-90 crosses the Hampden/Worcester county line a few times in MA. It also crosses the Worcester/Middlesex county line and the Norfolk/Suffolk county line multiple times.
CA-41 switches between Madera and Mariposa counties several times while heading north towards Yosemite.
Quote from: Beeper1 on December 19, 2012, 05:29:41 PM
I-84 enters Tolland County, CT twice, separated by a bit of Windham County.
Within 15 miles on I-84, you get one little extra. Heading northeast (EAST):
Willington (Tolland County, CT)
Ashford (Windham County, CT)
Union, CT (Tolland County, CT)
Holland, MA (Hampden County, MA)
Sturbridge (Worcester County, MA)
I know I strayed from the subject a bit, so sorry about that one. Heading east along I-90 (Massachusetts Turnpike), you have this in order:
Westborough (Worcester County)
Hopkinton (Middlesex County) [Exit 11A - I-495]
Westborough (Worcester County)
Southborough (Worcester County)
Ashland (Middlesex County)
.
.
.
BOSTON (Suffolk County) [Exits 18-20]
Brookline (Norfolk County) [skims the northeast corner]
BOSTON (Suffolk County)
Quote from: roadman65 on December 19, 2012, 04:09:42 PM
We have a forum already that is one county state highways. That inspired me to have one about a route or road that enters one county twice.
In Florida we have both FL 434 and FL 436 that enter Orange County twice with Seminole County in between.
US 441 briefly enters Seminole County with it also being in Orange County twice.
Also in Florida: Holmes and Washington Counties in the panhandle interlock, and I-10 passes through all four extensions in turn, so you pass through, E-W, Washington-Holmes-Washington-Holmes (with "Entering _______ County" signs at each crossing, IIRC).
Any route that passes through an independent city in Virginia that has the same county on at least 2 sides. VA 144 for Chesterfield, US 301, US 58, and I-95 for Greensville, I-64 Henrico, US 60 James City, US 29/50 Fairfax, etc. US 17 also passes through the city of Chesapeake twice.
Quote from: Takumi on December 19, 2012, 06:15:20 PM
Any route that passes through an independent city in Virginia that has the same county on at least 2 sides. VA 144 for Chesterfield, US 301, US 58, and I-95 for Greensville, I-64 Henrico, US 60 James City, US 29/50 Fairfax, etc. US 17 also passes through the city of Chesapeake twice.
According to the map, I-64 in Virginia also passes through Louisa County twice with a section of Goochland County in between; it also passes through Goochland County twice with a section of Louisa County in between.
Google Maps isn't great for counties, so here's Bing Maps showing the area: http://binged.it/12AZhWr It's been a few years since I've driven that stretch so I do not recall the signs confirming it. Bing Maps seems pretty good for this, though–they accurately show the way VA-231 nips a tiny corner of Louisa County just south of Gordonsville, for example.
Quote from: EchoCharlieHotel on December 19, 2012, 06:03:29 PM
Also in Florida: Holmes and Washington Counties in the panhandle interlock, and I-10 passes through all four extensions in turn, so you pass through, E-W, Washington-Holmes-Washington-Holmes (with "Entering _______ County" signs at each crossing, IIRC).
I knew there was two counties that I-10 passed through twice, but was unsure of which two. Thanks for pointing it out.
Quote from: 1995hoo on December 19, 2012, 06:24:17 PM
According to the map, I-64 in Virginia also passes through Louisa County twice with a section of Goochland County in between; it also passes through Goochland County twice with a section of Louisa County in between.
US 250 also goes through both twice, as well as Fluvanna County. Heading westbound, the sequence is Goochland-Louisa-Goochland-Fluvanna-Louisa-Fluvanna.
SR 20 here crosses from Skagit to Whatcom County, then dips back into Skagit County before crossing the mountains into Okanogan Chelan County.
Colorado I-25 enters Weld County twice.
Plenty in Kentucky.
KY 28, for example. Owsley-Breathitt-Perry-Breathitt-Perry.
KY 2022: Perry-Owsley-Perry.
US 169 goes Tulsa-Rogers-Tulsa-Rogers north of Owasso, OK.
I-40 does something similar with Carson County, TX.
CA 62 enters and exits both San Bernardino and Riverside Counties.
I'm sure there's several more in NC, but off the top of my head.
NC 42 (Chatham)
NC 55 (Sampson)
Interstate/NC 540 counts if you consider it all 1 route. I-540 ends at I-40 in Durham county, but continues on as NC 540 and reenters Wake county.
I-295 crosses from Chesterfield County into the City of Hopewell. Then (IIRC) it goes Hopewell-Prince George-Hopewell-Prince George-Hopewell-Prince George-Hopewell-Prince George.
I think that's right. Also, VA 147 goes Chesterfield-Richmond-Henrico-Richmond and VA 197 Richmond-Henrico-Richmond.
I also know of a secondary route that does this, SR 650 for Prince George and Sussex counties, going Prince George-Sussex-Prince George.
Heading east, the Ohio Turnpike (I-80/90) leaves Wood County in northwest Ohio and enters Ottawa County for approx. 1.4 miles. Then it enters Sandusky County for about 3.2 miles. Then the turnpike heads back into Ottawa County for another 3.2 miles....before crossing back into Sandusky County. The road is nearly straight; the counties have a stair-step boundary.
Another couple in CT:
CT 322 goes from Wolcott (New Haven) into Southington (Hartford), Cheshire (New Haven), back into Southington
I-691 goes from Cheshire into Southington then Meriden (also New Haven).
About I-84 and Hampden County: Only the westbound side actually enters Holland. The sign eastbound at the state line says entering Sturbridge, which is Worcester County.
Doesn't I-95 in South Carolina go something like Darlington-Florence-Darlington-Florence?
US 71 enters Scott County, AR twice.
MN 55 passes through Stearns County three times. US 61 goes through Washington County twice (for now).
In Nebraska, the only ones that totally go through the same county twice is NE 23 in Frontier County and NE 71 in Sioux County. NE 15 is on the border in southwestern Dixon County, enters Cedar County, then enters Dixon County. I also believe US 6 very briefly cuts through a corner of Cass County in the Ashland area, making the sequence Cass-Saunders-Cass-Saunders (this is something my Ashland-based coworker told me once and he isn't a roadgeek or anything).
I-295 in Virginia crosses the Chickahominy River twice, also allowing it to go from Henrico-Hanover-Henrico in a span of about 10 miles.
Near Williamsburg, I-64 goes from James City County - York County -James City County.
Although it's not signed as such, I-88 in Illinois goes Rock Island->Whiteside->Rock Island->Whiteside in the span of about a half of a mile. (link (http://mapq.st/12C7E3W) to Mapquest because it shows county borders)
Another one in IL is US-51 going through Christian County before and after it enters Shelby county.
I-684 crosses from Westchester County, NY, to Fairfield County, CT, and then back to Westchester. The Cross Island Parkway in New York crosses from Queens to Nassau County and then back to Queens.
Also, NJ 440/NY 440 crosses from New Jersey to New York and then back to New Jersey, although it's in two different counties in New Jersey (Middlesex and Hudson, respectively).
Quote from: dgolub on December 20, 2012, 11:06:39 AM
Also, NJ 440/NY 440 crosses from New Jersey to New York and then back to New Jersey, although it's in two different counties in New Jersey (Middlesex and Hudson, respectively).
If you want to count states, US 141 goes from WI to MI, back to WI, then back to MI, but in all different counties. Then a odd case of MN TH 23 going into WI for a half mile before returning to MN. It remains MN TH 23 in the part in Wisconsin.
US 412/Cimarron Turnpike goes Noble-Pawnee-Noble-Payne-Pawnee.
Quote from: Scott5114 on December 20, 2012, 11:34:43 AM
US 412/Cimarron Turnpike goes Noble-Pawnee-Noble-Payne-Pawnee.
I had to look up how that worked. some sawtoothed county lines there, for sure.
before it enters Payne county, does the corner clip Pawnee again? (thus going Noble-Pawnee-Noble-Pawnee-Payne-Pawnee)
Quote from: Takumi on December 19, 2012, 06:40:26 PM
Quote from: 1995hoo on December 19, 2012, 06:24:17 PM
According to the map, I-64 in Virginia also passes through Louisa County twice with a section of Goochland County in between; it also passes through Goochland County twice with a section of Louisa County in between.
US 250 also goes through both twice, as well as Fluvanna County. Heading westbound, the sequence is Goochland-Louisa-Goochland-Fluvanna-Louisa-Fluvanna.
I was looking at a map and it appears that just east of Upperville, US-50 crosses from Fauquier to Loudoun County and then back to Fauquier very shortly afterwards, less than a mile. I do not ever recall having seen any signs indicating the crossing, which is odd because as you know Virginia is meticulous in noting such things.
Oh 3 does a double dip through Ashland County
Oh 309 (former US 30S) goes Marion-Morrow-Marion-Morrow
I-70 and US 40 goes Licking-Muskingum-Licking-Muskingum around Gratiot
Before the "Plain City bypass" was built, US 42 went Union-Madison-Union-Madison through Plain City.
Oh 161 goes Franklin-Union-Franklin-Madison-Union
NY 30 enters Franklin county twice. First it enters from Hamilton county, then in 1/4 mile dips into St. Lawrence county for 1/2 mile (this is only visible on reference markers and is not signed). Then NY 30 re-enters Franklin county, where it remains until ending at QC 138.
NY 17 enters Tioga county twice thanks to the dip into Bradford county, PA.
ON 401 enters Leeds and Grenville United Counties FOUR times eastbound and three westbound thanks to Gananoque, Brockville, and Prescott being independent of the county.
NY3 also enters Franklin County twice. Heading east, it enters Essex County in Saranac Lake, then crosses back into Franklin County some distance east before ultimately entering Clinton County.
NY31 enters Wayne County twice, with a brief dip into Ontario County between Newark and Palmyra due to the south shoreline of the Erie Canal.
These are ones I know off the top of my head in Wisconsin.
US 45 enters Waukesha Co twice. First from Racine Co near Muskego (as a border with Milwaukee Co) then enters Milwaukee Co until Wis 145 in Menominee Falls where it enters Waukesha Co again.
Wis 73 enters Columbia Co twice. Once from Dane Co near Columbus and the other from Dodge Co in Randolph.
Wis 80 enters Grant Co twice. It is the border with Lafayette Co, enters into Grant Co near Platteville, enters into Iowa Co at US 18 then reneters Grant Co for a short bit just before the Wisconsin River/Richland Co.
Wis 92 enters Dane Co twice. It starts in Dane Co at US 14 near Evansville, dips into Green Co then reenters Dane Co near Wis 69.
Quote from: 1995hoo on December 20, 2012, 12:07:11 PM
I was looking at a map and it appears that just east of Upperville, US-50 crosses from Fauquier to Loudoun County and then back to Fauquier very shortly afterwards, less than a mile. I do not ever recall having seen any signs indicating the crossing, which is odd because as you know Virginia is meticulous in noting such things.
I have maps that show US 460 passing through the tip of Surry County between Sussex and Southampton. This isn't marked, either.
I'm sure that PA has more than a couple (I know US-219 does a little dance at the Jefferson/Clearfield County Border).....
But the one that wins the award in my book is PA-56.
Heading East-to-West, PA-56 leaves Westmoreland County as it crosses the Connamaugh River in the tiny borough of Seward. It enters Indiana County for a distance, then some time in Armstrong County.....
It re-enters Westmoreland County about 47 (route) miles later around Vandergrift.
http://goo.gl/maps/4Fbhr (http://goo.gl/maps/4Fbhr)
In Alabama, US-80 enters Marengo County twice, clipping the corner of Hale.
Arkansas 43 and Oklahoma (yes, Oklahoma) 20 enter Benton County, AR twice. Arkansas 16 enters Pope County 4 times.
I-86/NY 17 leaves and enters Tioga County, NY and ducks into Bradford County, PA.
Quote from: deanej on December 20, 2012, 12:26:20 PM
NY 17 enters Tioga county twice thanks to the dip into Bradford county, PA.
Quote from: jp the roadgeek on December 20, 2012, 09:05:54 PM
I-86/NY 17 leaves and enters Tioga County, NY and ducks into Bradford County, PA.
SR 35 follows the border between Santa Clara and Santa Cruz Counties, and crosses several times.
Quote from: Takumi on December 20, 2012, 12:39:28 AM
I think that's right. Also, VA 147 goes Chesterfield-Richmond-Henrico-Richmond and VA 197 Richmond-Henrico-Richmond.
The VA 197 occurrence is also notable as that segment is state-maintained, but also technically isolated from any other state-maintained primary routes (it connects to itself and to US 33/250 on both ends of the Henrico segment, but they aren't state-maintained).
Quote from: 1995hoo on December 20, 2012, 12:07:11 PM
I was looking at a map and it appears that just east of Upperville, US-50 crosses from Fauquier to Loudoun County and then back to Fauquier very shortly afterwards, less than a mile. I do not ever recall having seen any signs indicating the crossing, which is odd because as you know Virginia is meticulous in noting such things.
Indeed, they are. Most of the I-295 entrances and exits from Hopewell are signed.
Quote from: agentsteel53 on December 20, 2012, 11:54:29 AM
Quote from: Scott5114 on December 20, 2012, 11:34:43 AM
US 412/Cimarron Turnpike goes Noble-Pawnee-Noble-Payne-Pawnee.
I had to look up how that worked. some sawtoothed county lines there, for sure.
before it enters Payne county, does the corner clip Pawnee again? (thus going Noble-Pawnee-Noble-Pawnee-Payne-Pawnee)
Sadly, it does not. OK 108 does straddle the county line there, though.
NY 21 goes from Ontario County into Yates County then back into Ontario County near Naples.
NY 14A goes from Schuyler County into Yates County then back into Schuyler County then back into Yates County between Watkins Glen and Dundee.
NY 39 goes from Cattaraugus County into Erie County in Gowanda, then goes back into Cattaraugus County near Yorkshire (and it's multiplexed at both points, with US 62 at the former and NY 16 at the latter).
Here's a real oddity: In Houston County, MN, County road 2 travels near the border and enters Iowa briefly at one point, then curves north, then curves south again and becomes someone's responsibility in Iowa until the road ends at IA 26 :wow: :cool:
NH 153 actually crosses the border into ME for a mile or 2 before re-entering NH in Carroll County.
Quote from: 1995hoo on December 19, 2012, 06:24:17 PM
According to the map, I-64 in Virginia also passes through Louisa County twice with a section of Goochland County in between; it also passes through Goochland County twice with a section of Louisa County in between.
As mentioned above I-295 crosses in and out of Prince George County, Virginia (flip-flopping with the notorious speed trap City of Hopewell) several times between I-95 (Petersburg end) and the James River.
It never actually makes its way inside the corporate limits of Petersburg.
Md. 650 (New Hampshire Avenue) leaves Washington, D.C. with the northbound lanes in Prince George's County and the southbound lanes in Montgomery County (City of Takoma Park).
At Md. 410 (East West Highway), the road enters Montgomery County (still in Takoma Park) entirely.
At Md. 193 (University Boulevard), the road leaves Montgomery County and enters unincorporated Prince George's County.
At (roughly) Northhampton Drive, Md. 650 crosses the county line again at an acute angle, and then continues on its way for many miles north in Montgomery County, coming fairly close to, but never entering, Howard County.
Then there is Md./Del. 54. From the west, starts out in Maryland at Mardela Springs, then enters Delaware, then comes back to run on top of the state line for quite a few miles, then turns back into Delaware, before it finally ends at Delaware 1 just short of the Atlantic Ocean, and a block north of the state line (and the northern border of Ocean City, Maryland).
I guess I-684 counts in New York. It goes from Westchester County, NY; to Fairfield County, CT; then back into Westchester County, NY.
Columbia County 2/Dutchess County 78 in New York bounces between the two counties. When it crosses the Taconic State Parkway as Jackson Corners Road, the east side of the exit from the Parkway is in Dutchess County and west side of the same exit is in Columbia County. Columbia County 2 travels east passed Elizaville and then dips slightly south back into Dutchess County.
Only one I know of in my area is SC Route 217. It starts in Colleton County, then enters Bamberg County, then (after it multiplexes with SC Route 362 East) re-enters Colleton County.
La. 70 leaves Ascension Parish into Saint James Parish to cross the Sunshine Bridge over the Mississippi River. After that crossing, it goes back into Ascension Parish near Donaldsonville.
Found only one in Michigan, and it is on US-127 in far southern Michigan. From the Ohio line, it runs on the Hillsdale/Lenawee county line, then it curves into Hillsdale County, followed by a curve into Lenawee County, then back into Hillsdale County just before entering Jackson County.
Westbound from the south end of Carson City, US 50 dips into Douglas County for about 1/2 mile, then returns to Carson City (the limits of which extend all the way west to the middle of Lake Tahoe). A mile or so before Spooner Summit it then returns to Douglas County and stays there until reaching the California state line.
(Edit: Image posted on Photobucket deleted)
A couple I've encountered:
I-75 goes Kenton-Boone-Kenton from south to north in Kentucky
I-70 in Indiana goes from Hendricks County, clips the northwest corner of Morgan County, then re-enters Hendricks before finally re-entering Morgan County.
You want one that takes the cake? I'll give you one.
I-26 in South Carolina does the following (from NW to SE): Starts in Lexington County (at exit 91), goes into Richland County (exits 97-103) then goes back into Lexington County (exits 104 and 106), back a second time to Richland County (exits 107 to 108B), then back to Lexington County for a third time (exits 110-119 including the I-77 south terminus), to Calhoun County for exit 125, goes back to Lexington County a FOURTH time for exit 129, and at last returning to Calhoun County.
Quote from: agentsteel53 on December 19, 2012, 04:18:21 PM
California state route 166 crosses between Santa Barbara and San Luis Obispo counties at least five times. it's a river crossing each time, but I cannot remember which river.
It's the Santa Maria River.
At La Mirada/Buena Park, CA-39 goes from Orange to Los Angeles to Orange to Los Angeles to Orange County. The "unconstructed" routing continues back into Los Angeles County north of La Habra, and the signed routing picks up again in Asuza.
The only one I can find for Iowa is US 18, which goes thru the NW corner of Clayton County, meets US 52 and goes thru Postville in Allamakee County, then turns SE to go back into Clayton County.
I forgot one. While it is a full circular beltway around Cincinnati, I-275 does, in fact fit this definition. It enters Hamilton County at the Ohio River near Fort Thomas, Kentucky, proceeds eastward to cross the Clermont County line near exit 65 (Ohio Route 125), turns north from there and then turns back northwest to re-enter Hamilton County somewhere near the Loveland exit, exit number 52.
TX 204, going east (actually more like SE at this point) goes out of Cherokee County into Rusk County briefly, then back to Cherokee County through the town of Reklaw, then just afterward, over the Angelina River into Nacogdoches County.
Interstate 24 goes in and out of Hamilton County, Tennessee, and ducks into Dade County, Georgia.
One more: NY 120A goes into Fairfield County, Connecticut, for a short distance. The rest of it is in Westchester County, New York.
We seems to have a lot of re-postings on this forum lately, especially this thread...
Quote from: dgolub on December 20, 2012, 11:06:39 AM
I-684 crosses from Westchester County, NY, to Fairfield County, CT, and then back to Westchester.
Quote from: roadman65 on December 21, 2012, 11:16:28 AM
I guess I-684 counts in New York. It goes from Westchester County, NY; to Fairfield County, CT; then back into Westchester County, NY.
US 290 going east from Lee County, Texas: Lee County, Fayette County, Washington County, Fayette, Washington, Fayette, Washington.
How about US 52 and US 119 in KY and WV? US 119 going North passes through Pike county, KY-Mingo county, WV (US 52 multiplex starts here)-Pike-Mingo-Pike-Mingo. And East of there, US 52 dips onto Logan county, so it enters Mingo four times.
Found another one in Michigan: M-72 west of Traverse City. It comes in from the west and Leelanau County, then runs on the Leelanau/Grand Traverse county line for about four miles, then wholly into Leelanau County, then wholly into Grand Traverse County, then back into Leelanau County, before settling on the county line for a few hundred feet. Then it turns south and stays in Grand Traverse County at the Traverse City city limits.
Texas 71 enters Mason County, jumps into San Saba County, and then goes back into Mason County over the course of about three miles
US-95 in Idaho goes from Idaho County to Adams County to Idaho County to Adams County. The county line is the Little Salmon River, which the highway crosses a few times.
OH-32 goes Brown-Highland-Brown-Highland-Brown.
CT 179: Hartford>Litchfield>Hartford
Denver's unique status as a consolidated city/county government means that there are a lot of entrances/exits. Glendale, a city in Arapahoe County, is surrounded completely by the City & County of Denver, which means that CO 83 (Leetsdale Dr) leaves Denver Co, enters Glendale, enters Denver again, leaves Denver and enters Arapahoe Co as Parker Rd (into Aurora), then the southbound side enters Denver again twice: between Iliff Ave & Havana St, then between Dartmouth Ave & Peoria St. Then Parker Rd eventually leaves Arapahoe Co and heads into Douglas Co.
So, on SB 83, which begins in Denver goes into Arapahoe/Denver/Arapahoe/Denver/Arapahoe/Denver/Arapahoe/Denver/Arapahoe/Douglas, and NB 83 goes Douglas/Arapahoe/Denver/Arapahoe/Denver.
Colorado Blvd (CO 2) forms the western boundary of Glendale. The north end is in Commerce City (Adams) at US 6/85, then SB heads into Denver, with the highway portion ending at Hampden Ave (US 285) on the Denver/Cherry Hills Village (Arapahoe) border, but NB goes thru Denver/Glendale (Arapahoe)/Denver/Glendale/Denver/Commerce City (Adams).
US 285 (Hampden Ave) from west to east (south to north directions on 285): Jefferson/Denver/Jefferson (NB)/Denver/Arapahoe/Denver (SB)/Denver (both directions).
US 287 (Federal Blvd south to Colfax Ave east): Adams/Denver/then Adams on the north side and Arapahoe on the south side.
CO 121 (Wadsworth Blvd) from north to south: Jefferson/Denver (NB)/Jefferson/Denver/Jefferson/Denver/Jefferson.
CO 95 (Sheridan Blvd) from north to south: Jefferson (SB) & Adams (NB)/Denver/Jefferson (SB) & Denver (NB)/Denver/Jefferson & Denver/Denver/Jefferson & Denver/Denver.
CO 88 (Federal Blvd south of Colfax/Belleview Ave east of Federal): Denver/Arapahoe/Denver (SB) & Arapahoe (NB)/Arapahoe/Denver (WB) & Arapahoe (EB)/Arapahoe.
CO 30 (Hampden Ave east of I-25/Havana St north of Hampden/6th Ave east of Havana): Denver/Denver (WB) & Arapahoe (EB)/Denver/Denver (SB) & Arapahoe (NB)/Arapahoe/Denver (SB) & Arapahoe (NB)/Arapahoe/Denver (SB) & Arapahoe (NB)/Arapahoe.
E-470 Tollway also enters Denver briefly near the airport (Denver annexed a strip of land along Pena Blvd, the access road), so that from either direction, it goes thru Adams/Denver/Adams.
Interstate 526 begins in Charleston County, then enters Berkeley County and enters Charleston County for the final time.
NOTE: If the Savannah River Site was considered as part of Aiken County (29808 is an Aiken zip code just for SRS), then SC 125 would officially enter Barnwell County near Hattieville for only 0.6 miles, then enter Allendale County, then re-enter Aiken County about 3 miles east of Millett, then enter Allendale County for the final time to its southern terminus at US 278/301 in Allendale.
I-59 enters Forrest and Lamar counties in south Mississippi twice. I-55 enters Hinds County/city of Jackson twice.
I-285 enters Fulton County twice in the Atlanta and 459 does the same in the Jefferson County/Birmingham area.
I-465 goes Marion-Boone-Marion-Hamilton-Marion on the north side of Indianapolis.
I-70 goes Morgan-Hendricks-Morgan-Hendricks southwest of Indianapolis.
I-64 goes Vanderburgh-Gibson-Vanderburgh-Gibson near Evansville.
I-64 goes Spencer-DuBois-Spencer-DuBois west of Louisville.
I-285 goes Fulton-Cobb-Fulton-DeKalb-Fulton-Clayton-Fulton around Atlanta.
The US 422 freeway in Eastern PA, heading east, starts in Berks County, then crosses into Montgomery, then Chester, then Montgomery, and eventually ends along the Montgomery/Chester border.
Add in I-275 which goes Manatee-Hillsborough (very briefly over water)-Pinellas-Hillsborough in Tampa-St. Pete.
Also, Florida's Turnpike goes Osceola-Indian River-Okeechobee-Indian River-St. Lucie
Don't know why I didn't think of this earlier, but SR 102 wanders between Virginia and West Virginia several times.
http://goo.gl/maps/NVCz9
In Indiana, I-465 goes from Marion County to Boone County back to Marion County then to Hamilton County and finally back to Marion County.
Here's one...US 20 in Upstate New York from Bridgewater to West Winfield goes Onieda, Otsego, Herkimer, Onieda, and Herkimer
Quote from: hbelkins on December 27, 2012, 10:25:10 AM
Don't know why I didn't think of this earlier, but SR 102 wanders between Virginia and West Virginia several times.
http://goo.gl/maps/NVCz9
Well, off of that...
http://goo.gl/maps/DzRmT
http://goo.gl/maps/GFYYB
Quote from: bugo on December 20, 2012, 08:24:51 PM
Arkansas 43 and Oklahoma (yes, Oklahoma) 20 enter Benton County, AR twice. Arkansas 16 enters Pope County 4 times.
16 is a real wiggler. I took that road to go camping a few years ago and AHTD doesn't even bother to sign the multiple crossings between Pope and Newton County.
The normal practice of AHTD is to assign a new section number at county lines, but AHTD keeps 16 as Section 8 all the way through until it finally crosses over into Searcy County.
Quote from: pj3970 on December 30, 2012, 10:25:32 PM
Here's one...US 20 in Upstate New York from Bridgewater to West Winfield goes Onieda, Otsego, Herkimer, Onieda, and Herkimer
Actually it's Oneida, Ostego, Herkimer, Ostego, Herkimer, Ostego
That reminds me, I-88 does this too. Heading east, you enter Delaware county, dip into Ostego for 1/10 mile (yes, it's fully signed), re-enter Delaware, then finally enter Ostego properly.
VA 199 goes York-James City-Williamsburg-James City-York.
VA 143 goes James City-York-James City-York-Williamsburg-York.
James City secondary route 615 technically has a gap that passes through Williamsburg, but there is a 615 shield in each direction within Williamsburg city limits.
Between James City County, Williamsburg, and York County, I changed jurisdictions 23 times in about 3 hours today.
CA-146 dips in and out of Monterey County up by Pinnacles. (At least according to Google Map boundaries)
As NE2 pointed out, CA-35 winds through Santa Cruz and Santa Clara Counties, but it also meanders in and out of San Mateo County.
CA-9 slips into San Mateo County.
WA-420 goes between King and Pierce county and crosses borders at Chinook Pass.
I-5 in Clark County & Cowlitz County by Horseshoe Lake
OR-219 between Washington and Yamhill Counties (winding road on straight county border).
MA/NH Route 286 meanders from Essex County, MA into Rockingham County, NH, then briefly back into Essex County, then ends just north of the state line once again at NH 1A.
NH 113B is even more interesting, actually beginning in Cumberland County Maine, entering Carroll County, NH, then ending back in Cumberland County.
Quote from: jp the roadgeek on January 01, 2013, 02:43:35 PM
MA/NH Route 286 meanders from Essex County, MA into Rockingham County, NH, then briefly back into Essex County, then ends just north of the state line once again at NH 1A.
NH 113B is even more interesting, actually beginning in Cumberland County Maine, entering Carroll County, NH, then ending back in Cumberland County.
Throw in the fact that NH/ME 113 is a three legged route in that area and the third leg crosses the state line at least four times.
Quote from: ftballfan on January 01, 2013, 02:49:22 PM
Quote from: jp the roadgeek on January 01, 2013, 02:43:35 PM
MA/NH Route 286 meanders from Essex County, MA into Rockingham County, NH, then briefly back into Essex County, then ends just north of the state line once again at NH 1A.
NH 113B is even more interesting, actually beginning in Cumberland County Maine, entering Carroll County, NH, then ending back in Cumberland County.
Throw in the fact that NH/ME 113 is a three legged route in that area and the third leg crosses the state line at least four times.
Technically, NH 113 and ME 113 are unrelated, but NH 113B is related to ME 113, and ME 113 crosses into and out of NH twice, but maintains ME state highway status. One would think they are connected, but they aren't.
Quote from: jp the roadgeek on January 01, 2013, 04:17:35 PM
Quote from: ftballfan on January 01, 2013, 02:49:22 PM
Quote from: jp the roadgeek on January 01, 2013, 02:43:35 PM
MA/NH Route 286 meanders from Essex County, MA into Rockingham County, NH, then briefly back into Essex County, then ends just north of the state line once again at NH 1A.
NH 113B is even more interesting, actually beginning in Cumberland County Maine, entering Carroll County, NH, then ending back in Cumberland County.
Throw in the fact that NH/ME 113 is a three legged route in that area and the third leg crosses the state line at least four times.
Technically, NH 113 and ME 113 are unrelated, but NH 113B is related to ME 113, and ME 113 crosses into and out of NH twice, but maintains ME state highway status. One would think they are connected, but they aren't.
It's a major coincidence that NH 113 and ME 113 happen to be so close to one another.
NJ Route 73 starts in Atlantic County before entering camden county, leaving camden county after 10 miles, entering burlington county, after 10 miles it leaves burlington county for camden county again then enters burlington county again, before exiting to philly 2 mi later
US 127 in Michigan straddles the Hillsdale—Lenawee county line, crossing fully into Hillsdale then Lenawee then clipping the corner of Hillsdale before crossing into Jackson County.
M-72, as mentioned above zig-zags along the Leelanau—Grand Traverse county line.
M-134 crosses out of Mackinac County headed eastbound into Chippewa County. There's a sliver of land along Lake Huron that is part of Mackinac County, and the highway dips back into Mackinac County before returning to Chippewa just west of the M-48 junction
Depending on how the county lines are drawn in the Straits of Mackinac, I-75 may cross back into Cheboygan County on the Mackinac Bridge. There are no county line signs on the bridge, but MDOT's Physical Reference Finder mapping application indicates that the section of the southern approaches over the visitor center for Fort Michilimackinac is on the Cheboygan County side of Mackinaw City. If that's true, then I-75 runs northward out of Cheboygan into Emmet and back into Cheboygan before entering Mackinac County.
When US 31 was routed along I-75 to the foot of the Mackinac Bridge, it crossed out of Cheboygan County back into Emmet County at the Nicolet Street interchange.
Federal Forest Highway 13 (also H-13) crosses back and forth along the Alger—Schoolcraft county line.
Quote from: jp the roadgeek on December 22, 2012, 10:10:19 AM
Interstate 24 goes in and out of Hamilton County, Tennessee, and ducks into Dade County, Georgia.
Yes, and the Georgia portion uses the Tennessee mileage and exit numbers in this section.
Re: NH/ME routes,
According to CHM, NH 153 crosses into Maine for 2 miles to pass around Province Lake, and ME 110 crosses into NH for 0.1 miles to end at NH 153 a few miles south of there.
NH 113B, however, is shown as having its south end 1 mile into Maine, and its north end right on the border, at 113. Both north and south of 113B, ME 113 crosses into NH, for a total of 6.2 miles.
Those are the only border-hopping routes in New England that I know of, and I consider CHM a pretty reliable source.
There's also NH/MA 286, which comes close, but only crosses once. Google Maps shows it briefly crossing back into Mass before the eastern end at NH 1A, but it's not signed as such.
Quote from: deathtopumpkins on January 06, 2013, 10:02:27 AM
Re: NH/ME routes,
According to CHM, NH 153 crosses into Maine for 2 miles to pass around Province Lake, and MA 110
ME
Quote from: Steve on January 06, 2013, 10:28:39 AM
Quote from: deathtopumpkins on January 06, 2013, 10:02:27 AM
Re: NH/ME routes,
According to CHM, NH 153 crosses into Maine for 2 miles to pass around Province Lake, and MA 110
ME
Typo. Probably just so used to typing MA 110 since I live near it.
PA 54 starting at PA 61 in Northumberland Co, crosses into a corner of Montour Co just north of PA 487, then back into Northumberland, then crosses the Susquehanna River back into Montour, then several miles west, BACK into Northumberland, and then eventually into Lycoming.
PA 44 in Jersey Shore PA, in Lycoming Co, joins US 220 and crosses into Clinton Co. Right after leaving US 220, crosses back into Lycoming, then at Haneyville, straddles the Lycoming/Clinton line, before the county line turns, leaving PA 44 back in Lycoming.
Quote from: Laura Bianca on January 06, 2013, 09:15:34 AM
Quote from: jp the roadgeek on December 22, 2012, 10:10:19 AM
Interstate 24 goes in and out of Hamilton County, Tennessee, and ducks into Dade County, Georgia.
Yes, and the Georgia portion uses the Tennessee mileage and exit numbers in this section.
Actually uses Tennessee exit numbers, but uses Georgia mileage.
I'm surprised it hadn't been mentioned yet, I-195 in New Jersey goes Mercer-Monmouth-Ocean-Monmouth.
Not sure if anyone mentioned it yet, but I-40 in Texas enters Gray County twice I believe.
Quote from: Kacie Jane on January 13, 2013, 07:56:19 PM
I'm surprised it hadn't been mentioned yet, I-195 in New Jersey goes Mercer-Monmouth-Ocean-Monmouth.
The upper-end of the AC Expressway, between NJ 42/168 & Exit 41 meanders in-and-out of Camden & Gloucester Counties. While heading down to the Jersey Shore, I do recall seeing a couple of Entering Gloucester & Camden County signs along the way.
I-691 heading west from I-91 in Meriden, CT:
Meriden (New Haven County)
Southington (Hartford County)
Cheshire (New Haven County)
I-691 West ends at I-84 at the Cheshire/Southington town line. Get onto I-84 East here and you'll be in Hartford County again.