Exit Numbers on non freeways

[ElishaGOtis]

While it seems like they could be removed soon, US-98 in Panama City Beach had LETTERED exits for certain intersections.

https://maps.app.goo.gl/bVQ9xJVgY8fNXqwo9

[jp the roadgeek]

A couple I can think of:

In Dartmouth, MA, the southern terminus of MA 140, which is a signalized intersection with US 6, is signed as Exit 1

The grade separated interchange on CT 184, which is a 4 lane divided arterial, was given an exit number (1) when CT numbered exits on nearby CT 349

[plain]

This one might count.

US 70 at I-540 in NC

https://maps.app.goo.gl/JDHdt8cvmFc5Foyi7

[PurdueBill]

Ohio is adding them to all interchanges statewide, whether the road is a freeway or not, as part of sign replacement projects.

And the numbering appears to be based on overall route mileage, despite the fact that they generally post county line based mileposts.

Overall mileage markers (the 2/10 ones) are appearing on non-Interstate routes in Ohio; US 35 in Dayton has had them with the mileage to the Indiana line for quite a while.  The exit numbering on non-Interstates in Ohio has been going for 20 years now, but will take forever to get everywhere at the pace they are going because it seems to be dependent on district.  Two sign replacements on US 30 between I-75 and the Indiana line in that timeframe have yielded no exit numbers at all, while exit numbers have appeared on US 30 in Mansfield and Massillon (crapping out near Canton, with an exit numbered eastbound but not westbound).  Ostensibly it is because the sections in Mansfield and Massillon are freeway, but that hasn't stopped them from posting exit numbers on other roads with one-off interchanges. 

The strangest-looking instance of exit numbers on a non-freeway in Ohio has to be on US 20/23 at OH 420; the full-width gantry with two BGSs with exit tabs over a two-lane road just comes out of nowhere.  (The road does widen to a dual carriageway at the interchange.)

https://maps.app.goo.gl/dumTd72KdGnSnHtS9

[SkyPesos]

Ohio is adding them to all interchanges statewide, whether the road is a freeway or not, as part of sign replacement projects.

And the numbering appears to be based on overall route mileage, despite the fact that they generally post county line based mileposts.

Overall mileage markers (the 2/10 ones) are appearing on non-Interstate routes in Ohio; US 35 in Dayton has had them with the mileage to the Indiana line for quite a while.  The exit numbering on non-Interstates in Ohio has been going for 20 years now, but will take forever to get everywhere at the pace they are going because it seems to be dependent on district.  Two sign replacements on US 30 between I-75 and the Indiana line in that timeframe have yielded no exit numbers at all, while exit numbers have appeared on US 30 in Mansfield and Massillon (crapping out near Canton, with an exit numbered eastbound but not westbound).  Ostensibly it is because the sections in Mansfield and Massillon are freeway, but that hasn't stopped them from posting exit numbers on other roads with one-off interchanges. 

The strangest-looking instance of exit numbers on a non-freeway in Ohio has to be on US 20/23 at OH 420; the full-width gantry with two BGSs with exit tabs over a two-lane road just comes out of nowhere.  (The road does widen to a dual carriageway at the interchange.)

https://maps.app.goo.gl/dumTd72KdGnSnHtS9

I don't really get how OhioDOT decides which exits get exit numbers with sign replacements, and which don't. Three examples in the southern half of the state:

US 35: Exit numbers added on most the interchanges east of I-675. A bit head scratching for the exits west of I-675, as the signs look like they were replaced just 2-3 years ago.

US 23: Exit numbers added in Chillicothe area, with US 23's exit numbers taking continuity on the concurrency with US 35. I actually thought US 35 will get exit number continuity here, as it's a freeway for longer and leaves the concurrency on the left on both ends, but sure. However, no exit numbers further south, including the new interchange with OH 823 in Portsmouth.

OH 32: A new interchange that opened late last year just west of the US 68 interchange was numbered Exit 27. Further west, there are two other new interchanges (to Glen Este-Withamsville Rd and Bach Buxton Rd) that don't have exit numbers assigned, nor have any existing interchanges got exit numbers. Also, OH 32 between I-275 and Batavia doesn't have any of the blue enhanced mile markers either, unlike every other freeway in the Cincinnati area.