Highest signed route of each type in each state

[hbelkins]

Kentucky

Interstate- 471
US - 641
State - who knows how far they're up to now? A few 6000-series frontage roads are signed in the western part of the state. The parkways are 9000-series but they have logo signs, not numbered route markers.

[ekt8750]

I could have sworn I've seen signed 4-digit state routes in PA.

4-digit routes are a separate type from routes numbered under 1000.

Yeah, they're called quadrant routes.  They're unique within a county, not at a statewide level, and they're only supposed to be signed on reference markers.  Are you saying that you've seen regular route shields for them?

There are a few roads in the more rural parts of the Commonwealth where their Quadrant Route number is their only name so it wouldn't surprise me someone decided to slap it on a keystone.

[nexus73]

Corco, thank you for the wide open West photos you posted.  They are great!

Rick

[Mr_Northside]

I could have sworn I've seen signed 4-digit state routes in PA.

4-digit routes are a separate type from routes numbered under 1000.

Yeah, they're called quadrant routes.  They're unique within a county, not at a statewide level, and they're only supposed to be signed on reference markers.  Are you saying that you've seen regular route shields for them?

There are a few roads in the more rural parts of the Commonwealth where their Quadrant Route number is their only name so it wouldn't surprise me someone decided to slap it on a keystone.

It's only a construction zone sign, so it gets a huge asterisk, but there is this:


I thought I remember back in the day there being a sign on Toll-66 that referenced a 4-digit SR - I think just for the toll information sign - but my brain could just be making up BS.

[national highway 1]

Until 2013, New South Wales had a hierarchical shielded route system which has now been replaced by the alpha-numeric system.
National Highway: 39
National Route: 79
State Route: 157
Metroad: 10

[SignGeek101]

Manitoba's highest is 632 (though I couldn't find it and it may not even be signed). Highest one I found signed was 594.

Is there a provincial trunk (primary system) highway in Manitoba numbered higher than 101? I know the PTHs don't go into the 200s.

190 is the highest PTH route I know of in the province. It was opened about 1-2 years ago and is in the works for being extended west to Headingley. Here is a picture:


Perimeter Hwy at CentrePort Canada Way (MB 190) Exit by Sign Geek, on Flickr

Saskatchewan's northernmost secondary routes go up into the 900s, though I don't know the highest off the top of my head. At least one of its 900s is legendarily awful.

According to Wikipedia, highest is 999, but once again, I don't think it's signed.

[roadfro]

Nevada

I-580
US 395 (formerly US 466)
SR 895

[mrfoxboy]

New Brunswick tops out at NB-970