Shortest state highways in multiple counties?

[formulanone]

Alabama's shortest state route between two counties is probably 237 (Franklin/Marion Counties, 4.63 miles)

[JayhawkCO]

MN: MN 101 is 7 miles long and enters *three* counties (Hennepin, Wright, Sherburne)

Looks like the shortest to be in more than one is MN156 which is 4.201 miles long and goes between Ramsey and Dakota Counties.  Corrected.  See a few posts below.

Chris

[plain]

VA 271 is 7.34 miles long and passes through 3 counties (Henrico, Goochland, Hanover)

VA 197 is 3.6 miles long and passes through Henrico County (barely) and the City Of Richmond.

[bulldog1979]

Shortest I've found in MI is M-42, 10.3 miles, in Wexford and Missaukee.

Followed by M-117, 14.5 miles, Mackinac and Luce; M-179, 16.9 miles, Allegan and Barry.

If we could bring back M-108, that was 1.069 miles on the Emmet—Cheboygan county line.

[DandyDan]

MN: MN 101 is 7 miles long and enters *three* counties (Hennepin, Wright, Sherburne)

Looks like the shortest to be in more than one is MN156 which is 4.201 miles long and goes between Ramsey and Dakota Counties.

Chris

MN 269, which goes west from Jasper to the South Dakota border, is 2 miles long and straddles the Rock and Pipestone County line.

[JayhawkCO]

MN: MN 101 is 7 miles long and enters *three* counties (Hennepin, Wright, Sherburne)

Looks like the shortest to be in more than one is MN156 which is 4.201 miles long and goes between Ramsey and Dakota Counties.

Chris

MN 269, which goes west from Jasper to the South Dakota border, is 2 miles long and straddles the Rock and Pipestone County line.

Well played.  I skipped the ones that were short and ended at a state border since I figured they were very unlikely to cross a county line less than a couple miles from a state border.

Chris

[clong]

Alabama's shortest state route between two counties is probably 237 (Franklin/Marion Counties, 4.63 miles)

Just slightly shorter is AL120 at 4.2 miles which starts in Macon and then crosses into Tallapoosa.

[JayhawkCO]

Arizona: AZ179 is 14.49 miles long and goes between Yavapai and Coconino Counties.

Chris

[GaryV]

Shortest I've found in MI is M-42, 10.3 miles, in Wexford and Missaukee.

Followed by M-117, 14.5 miles, Mackinac and Luce; M-179, 16.9 miles, Allegan and Barry.

Looks like M-188 is only 4.559 miles long and runs right on the border of Eaton and Ingham Counties.

Chris

You're right.  I was looking for all those short routes that went to parks, and forgot about the one going to the VFW home.

Another shorter one I found is M-100, 12.8 miles, in Clinton and Eaton Co.

[formulanone]

Alabama's shortest state route between two counties is probably 237 (Franklin/Marion Counties, 4.63 miles)

Just slightly shorter is AL120 at 4.2 miles which starts in Macon and then crosses into Tallapoosa.

Good catch!

Looks like AL 139 might be the state's shortest three-county SR, at 20.12 miles...but I'm not 100% sure of it.

[JayhawkCO]

New Hampshire: NH103B is 3.441 miles long and goes between Sullivan and Merrimack Counties
Rhode Island: RI402 is 1.2 miles long and goes between Kent and Washington Counties
(Surprisingly) Delaware: DE16 is 30.31 miles long and goes between Kent and Sussex Counties (Only three highways go between counties in DE: DE1, DE9, and DE16)
Oregon: OR551 is 5.94 miles long and goes between Marion and Clackamas Counties

Chris

[Flint1979]

Around here M-47 and M-84 are both in Saginaw and Bay County. M-138 is pretty short and is in Bay and Tuscola County.

M-47 just takes you from M-46 in Saginaw Township to US-10 just east of Midland.

M-84 goes from M-25 in downtown Bay City to M-58 on the west side of Saginaw.

[jp the roadgeek]

MA 33 is the shortest in MA at 5.54 mi between Chicopee in Hampden County and South Hadley in Hampshire County

[ran4sh]

GA 330 is about 6 miles and is in Barrow and Jackson counties

[zzcarp]

Shortest one in Colorado is CO53 which is 1.66 miles long and is on the border of Denver and Adams Counties.

Chris

CO 53 is entirely in Adams County. The Denver line is south of CO 53's southern terminus at 58th Avenue and I-25.

It appears the shortest highway that crosses the Denver/Adams line and also in the state would be 3.62 miles for CO 265 - Brighton Boulevard.

[mukade]

IN 645 is 1.97 miles long and crosses the Martin/Daviess County line.

Slightly longer is Indiana SR 140 at 2.25 miles in Henry and Rush counties:  https://en.wikipedia.org/wiki/Indiana_State_Road_140

SR 662 is 1.557 miles and MIGHT barely touch Vanderburgh County by a few feet. It is otherwise in Warrick County:  https://en.wikipedia.org/wiki/Indiana_State_Road_662

[TBKS1]

This is much more complicated considering that I live in Arkansas, where almost every state highway is split into more than one section. However, I did find a few.

AR 144 - located in Drew, Ashley and Desha counties. 24.6 miles long, shares a concurrency with US 65 north of Lake Village. Route runs along the Ashley/Drew county line for about a mile.

AR 198 - located in Poinsett and Mississippi counties. 2.7 miles long, crosses the county line near Helfer Landing. I don't know if there's a shorter one that crosses a county line in Arkansas.

[JayhawkCO]

Shortest one in Colorado is CO53 which is 1.66 miles long and is on the border of Denver and Adams Counties.

Chris

CO 53 is entirely in Adams County. The Denver line is south of CO 53's southern terminus at 58th Avenue and I-25.

It appears the shortest highway that crosses the Denver/Adams line and also in the state would be 3.62 miles for CO 265 - Brighton Boulevard.

That's what I get for only looking at the Wikipedia page for all the highways and reading that it starts in Denver and ends in Adams County. 

Chris

[7/8]

For Ontario, I think it's either the 409 or Highway 49. According to TM, the 409 was truncated at the 427 (not mentioned on Wikipedia), which puts the western terminus very close to the Toronto/Peel Region line. TM puts the shortened 409 at 4.4 km / 2.7 mi. Otherwise, I think it's Highway 49 in Hastings County and Prince Edward County at 6.1 km / 3.8 mi.

[tmthyvs]

Shortest one in Colorado is CO53 which is 1.66 miles long and is on the border of Denver and Adams Counties.

Chris

CO 53 is purely in Adams County. Denver is a few blocks farther south.

The shortest I could find was CO 75 at 3.24 miles, which crosses between Arapahoe and Jefferson counties.

[JayhawkCO]

Shortest one in Colorado is CO53 which is 1.66 miles long and is on the border of Denver and Adams Counties.

Chris

CO 53 is entirely in Adams County. The Denver line is south of CO 53's southern terminus at 58th Avenue and I-25.

It appears the shortest highway that crosses the Denver/Adams line and also in the state would be 3.62 miles for CO 265 - Brighton Boulevard.

Shortest one in Colorado is CO53 which is 1.66 miles long and is on the border of Denver and Adams Counties.

Chris

CO 53 is purely in Adams County. Denver is a few blocks farther south.

The shortest I could find was CO 75 at 3.24 miles, which crosses between Arapahoe and Jefferson counties.

I already got corrected upthread a bit.  Stupid Wikipedia.  And it does look like CO75 is 3.237 miles and CO265 is 2.444 miles for 265A and 0.113 for 265B in highway explorer.  The gap between the two is confusing, so maybe it's not actually CO265 in the middle?  Either way, if you do the whole routing of CO265, it's 3.6 miles on Google Maps, so it appears CO75 is the winner.

Side note, the Wikipage for Colorado State Highways has a whole lot of erroneous info.

Chris

[tmthyvs]

I already got corrected upthread a bit.

Somehow I missed that reply. My apologies; I certainly didn't mean to double up on the correction. I was surprised by how many relatively short options there were. In addition to CO75 and CO265, CO56 is also under 10 miles long while reaching multiple counties.

[michravera]

I was just curious: either by state or overall, what are the shortest state highways that go through more than one county within their respective states (i.e. they cross at least one county line)?

I know that here in the KC metro, MO 9 goes through Platte and Clay counties, with a small section at the south end in Jackson County. Overall, it only covers 14 miles - but it's a major route within the Northland.

My guess is that you are going to find a bridge over a river that forms a county line where the bridge is the entire state highway. I'm given to understand that Virginia does a lot of this. It may be a widespread practice. The shortest state highways that I know in California are all within one county.

[JayhawkCO]

I already got corrected upthread a bit.

Somehow I missed that reply. My apologies; I certainly didn't mean to double up on the correction. I was surprised by how many relatively short options there were. In addition to CO75 and CO265, CO56 is also under 10 miles long while reaching multiple counties.

Oh, no worries.  Your correction corrected the correction. 

Chris

[Bruce]

Washington:

SR 128 is 2.30 miles long and spans two counties (Asotin and Whitman) while also connecting to a state border.

A close one is SR 906, which is 2.65 miles long and spans two counties (King and Kittitas) by crossing Snoqualmie Pass. It must be one of the shortest highways to cross a major mountain pass.