Lowest Posted Speed Limit on a State Highway

[JayhawkCO]

I was doing some clinching on a social-distancing road trip the other day, and when I was getting near the defined end of CO 170 in Eldorado Springs, I saw the speed limit drops to 10 mph not too far before it goes unpaved.  GSV link here: https://www.google.com/maps/@39.9333257,-105.2735272,3a,75y,243.15h,76.24t/data=!3m6!1e1!3m4!1sWpYoimITWl4H8EOJPQWp-w!2e0!7i16384!8i8192

That got me wondering if it was (at least tied with) the lowest posted speed limit on a state highway in the country, and I didn't see anything on a quick search.  I wouldn't count recommended speeds on curves, since there are probably a couple on hairpins here in Colorado that are recommended at 10 mph.  What's your state's lowest?

Chris

[oscar]

Hawaii 360 (part of the Hana Highway on Maui) has a posted 15mph speed limit for its first 30 miles, except for a short "speed zone" in the middle where you can zoom up to 20 or 25mph.

[TheHighwayMan3561]

Minnesota as far as I know has no state routes posted under 30 MPH, which those segments are far too many to name.

[Max Rockatansky]

The Coronado Trail segment of US 191 in Arizona had a 25 MPH zone through the hundreds of ridge line curves. 

[JayhawkCO]

Minnesota as far as I know has no state routes posted under 30 MPH, which those segments are far too many to name.

Something like MN 292 isn't lower than 30 mph?  Tried to GSV it, but it's not on there.  I clinched it far too long ago to remember.

Chris

[Eth]

GA 177 is posted at 15 MPH inside Stephen C. Foster State Park. I don't think there are any route markers on this portion, but GIS confirms that it is part of the route.

[US 89]

The southernmost part of Utah's SR 96 approaching Clear Creek has a posted speed limit of 10 mph:

[Roadgeekteen]

The southernmost part of Utah's SR 96 approaching Clear Creek has a posted speed limit of 10 mph:

That does not look like a road that warrants speed limit 10. Or really it should just be an advisory sign.

[sprjus4]

The southernmost part of Utah's SR 96 approaching Clear Creek has a posted speed limit of 10 mph:

That does not look like a road that warrants speed limit 10. Or really it should just be an advisory sign.

So maybe 15 or 25 mph?

Take a look at what it's going into - https://www.google.com/maps/@39.6447434,-111.1525094,373m/data=!3m1!1e3!5m1!1e1

[JayhawkCO]

That does not look like a road that warrants speed limit 10. Or really it should just be an advisory sign.

Agreed.  The one I referenced in the OP is at least right in the middle of a small town.  I'm assuming that the town of Clear Creek is right around the corner?  I'm glad we found another one to tie mine though!

Chris

[Roadgeekteen]

The southernmost part of Utah's SR 96 approaching Clear Creek has a posted speed limit of 10 mph:

That does not look like a road that warrants speed limit 10. Or really it should just be an advisory sign.

So maybe 15 or 25 mph?

Take a look at what it's going into - https://www.google.com/maps/@39.6447434,-111.1525094,373m/data=!3m1!1e3!5m1!1e1

Well maybe 20, but isn't 10 like absurdly low? Like it's hard for a car to even go that slow?

[SteveG1988]

Michigan 185, probably has none.

[JayhawkCO]

Michigan 185, probably has none.

Therefore not posted I guess, right?  That would disqualify it.  If it were posted at zero, that presents a whole lot more problems. 

Chris

[Rothman]

Michigan 185, probably has none.

Therefore not posted I guess, right?  That would disqualify it.  If it were posted at zero, that presents a whole lot more problems. 

Chris

I think it does have a posted speed limit.

[wxfree]

TX 165 has a speed limit of 10.

It's an official state highway, but it's a special use road, running through the state cemetery.  It's very narrow, it has gates with daily closed hours, and it's impossible to drive the length of it without backtracking.  There's no room to park along the road, and parking is provided in a lot on Navasota Street, but the gates are open, suggesting that it's legal to drive through.

https://www.google.com/maps/@30.2678573,-97.725574,3a,30y,193.39h,87.68t/data=!3m6!1e1!3m4!1sLbC_bQinGiGlC07ufTJblw!2e0!7i16384!8i8192?hl=en

What is that kind of road called?  I think of "discontinuous," but to me a discontinuous road is one with a segment somewhere and then a disconnected segment somewhere else.  This road has a continuous segment in the form of an L-shaped loop, leading to other streets, plus a spur that leads to a turnaround, and that turnaround also leads to a dead-end spur that it looks like you'd have to back into or out of.

[oscar]

Michigan 185, probably has none.

Therefore not posted I guess, right?  That would disqualify it.  If it were posted at zero, that presents a whole lot more problems. 

Chris

I think it does have a posted speed limit.

Those of you who are really bored can tour the route on GMSV, to search for speed limit signs. (I assume Google sent someone with backpack-mounted camera gear, like it uses in places where it can't send a car.)

Then again, I don't recall seeing a speedometer on the bike I rented when I visited Mackinac Island, so it might be hard for tourists to obey any posted speed limit.

[US 89]

The southernmost part of Utah's SR 96 approaching Clear Creek has a posted speed limit of 10 mph:

https://i.imgur.com/UFQe2FJ.jpg

That does not look like a road that warrants speed limit 10. Or really it should just be an advisory sign.

So maybe 15 or 25 mph?

Take a look at what it's going into - https://www.google.com/maps/@39.6447434,-111.1525094,373m/data=!3m1!1e3!5m1!1e1

Well maybe 20, but isn't 10 like absurdly low? Like it's hard for a car to even go that slow?

For reference, this is what’s right around that corner, at the actual endpoint of SR 96:




Essentially, the highway just ends and dumps you right into these one-lane streets - which also have 10 mph limits, as the second photo above shows. You don’t want to be coming into those at 55 mph, which is what the rest of 96 in that area is posted as.

[Scott5114]

TX 165 has a speed limit of 10.

It's an official state highway, but it's a special use road, running through the state cemetery.  It's very narrow, it has gates with daily closed hours, and it's impossible to drive the length of it without backtracking.  There's no room to park along the road, and parking is provided in a lot on Navasota Street, but the gates are open, suggesting that it's legal to drive through.

https://www.google.com/maps/@30.2678573,-97.725574,3a,30y,193.39h,87.68t/data=!3m6!1e1!3m4!1sLbC_bQinGiGlC07ufTJblw!2e0!7i16384!8i8192?hl=en

Given that Texas has FM/RMs, spurs and loops that go up into the four-digit range, it's strange as hell that that warranted a three-digit primary designation.

[Max Rockatansky]

TX 165 has a speed limit of 10.

It's an official state highway, but it's a special use road, running through the state cemetery.  It's very narrow, it has gates with daily closed hours, and it's impossible to drive the length of it without backtracking.  There's no room to park along the road, and parking is provided in a lot on Navasota Street, but the gates are open, suggesting that it's legal to drive through.

https://www.google.com/maps/@30.2678573,-97.725574,3a,30y,193.39h,87.68t/data=!3m6!1e1!3m4!1sLbC_bQinGiGlC07ufTJblw!2e0!7i16384!8i8192?hl=en

Given that Texas has FM/RMs, spurs and loops that go up into the four-digit range, it's strange as hell that that warranted a three-digit primary designation.

Either "To-Market"  designation could be taken the wrong way and could be seen as encouraging body harvesting for agricultural purposes. 

[formulanone]

TX 165 has a speed limit of 10.

It's an official state highway, but it's a special use road, running through the state cemetery.  It's very narrow, it has gates with daily closed hours, and it's impossible to drive the length of it without backtracking.  There's no room to park along the road, and parking is provided in a lot on Navasota Street, but the gates are open, suggesting that it's legal to drive through.

https://www.google.com/maps/@30.2678573,-97.725574,3a,30y,193.39h,87.68t/data=!3m6!1e1!3m4!1sLbC_bQinGiGlC07ufTJblw!2e0!7i16384!8i8192?hl=en

Given that Texas has FM/RMs, spurs and loops that go up into the four-digit range, it's strange as hell that that warranted a three-digit primary designation.

I suppose SH 1 was in use in 1930.

I think I've encountered a handful of 20-25 mph limits, though they're not common on Alabama SR system. Mostly a few narrow passages winding through small towns. Anything below 30 on a US or State Route in Alabama is unusual and not the norm. Even AL 176 with its numerous sharp turns is posted at 35.

The Edmund Pettus Bridge for Business US 80 is 20 mph, but 25 or higher on the rest of the route.

[Ketchup99]

PA has lots of 25 zones on state highways in towns, but I'm pretty sure that's the lowest it gets. I'm gonna guess some quadrant route in some tiny town is at 15 but I have no concrete examples.

[nexus73]

On the west end of Elkton, SR 38 runs through a school zone.  20 MPH when the light is flashing!  The problem is that the school runs that light longer than needed. 

No doubt some business districts have state routes going through them with 20 MPH speed limits in Oregon.  I have yet to see anything lower than that speed posted on a state route over here.  Maybe someone else has.  If so,  I would love to hear about it!

Rick

[jeffandnicole]

If we consider schools limits, Pennsylvania defaults their limit to 15 mph, which can be found on numerous State routes.

[debragga]

Louisiana has a few 25mph limits going through downtown areas of small towns. I've seen them in Farmerville and Jena but I'm sure there are more.

[crispy93]

NYS has many, many (many) 30 MPH speed limits on state roads. Peekskill lowered their city speed limit to 25 (idk how they got away with that since the legislature has to approve area speed limits below 30). So US 6, US 202, NY 35, and a snippet of NY 9A all have 25 MPH limits. I don't really count state routes within NYC since they're owned and operated by the city DOT. That said, NY 25, NY 25A, NY 27, US 1, and US 9 all have 25 MPH segments within the city.