Roads that enter one county twice

[DandyDan]

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).

[topay]

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.

[pianocello]

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 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.

[dgolub]

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).

[Big John]

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.

[Scott5114]

US 412/Cimarron Turnpike goes Noble-Pawnee-Noble-Payne-Pawnee.

[agentsteel53]

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)

[1995hoo]

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.

[Hot Rod Hootenanny]

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

[vdeane]

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.

[cu2010]

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.

[hobsini2]

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.

[Takumi]

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.

[Mr_Northside]

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

[bdmoss88]

In Alabama, US-80 enters Marengo County twice, clipping the corner of Hale.

[bugo]

Arkansas 43 and Oklahoma (yes, Oklahoma) 20 enter Benton County, AR twice.  Arkansas 16 enters Pope County 4 times.

[jp the roadgeek]

I-86/NY 17 leaves and enters Tioga County, NY and ducks into Bradford County, PA.

[vdeane]

NY 17 enters Tioga county twice thanks to the dip into Bradford county, PA.

I-86/NY 17 leaves and enters Tioga County, NY and ducks into Bradford County, PA.

[NE2]

SR 35 follows the border between Santa Clara and Santa Cruz Counties, and crosses several times.

[WillWeaverRVA]

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).

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.

[Scott5114]

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.

[WNYroadgeek]

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).

[Molandfreak]

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

[jp the roadgeek]

NH 153 actually crosses the border into ME for a mile or 2 before re-entering NH in Carroll County.

[cpzilliacus]

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.