Highways numbered 100 - which states have them, and how prominent are they?

[frankenroad]

OH-100 is a relatively short, minor route in north Central Ohio.  It has a decent concurrency with the more-important OH-19.

[dfilpus]

NC 100 is a relatively unimportant circuitous route through Burlington. It was originally a daughter route of NC 10, which was applied to a former alignment of NC 10. After NC 10 was taken over by US 70, NC 100 was left behind.

[kphoger]

The only one I've identified in Mexico is Sonora 100, which runs from the state capital of Hermosillo to the tourist town of Bahía Kino.

It is the main link from central Hermosillo to the airport (HMO), which is the 11th most used airport in Mexico.  Between there and Bahía Kino, however, AADT (2019) tops out at 7091.

[thspfc]

WI-100 is short but pretty important, as it runs along major streets/parkways in the Milwaukee area. It doesn't exactly fit the bill of what a 100 should be, IMO, but it's important nontheless.

[hbelkins]

KY 100 is a reasonably prominent regional route. It connects a number of county seat towns along the state's southern border with Tennessee. It also fits in well with what passes for a grid for Kentucky's one- and two-digit routes.

WV 100 is a relatively minor route in the Morgantown area.

[Scott5114]

Oklahoma 100 is a somewhat minor 55-mile route through far eastern Oklahoma. Probably the most notable thing about it is that it (along with SH-10) had I-40 routed over it for a while after the Webbers Falls bridge collapse.

[hotdogPi]

MA absolutely could have a route 100: RI 100 ends at the state line, and there's a logical route for MA 100 to follow. Unfortunately, it doesn't.

RI 100 should be rerouted between Pascoag and the MA line to follow the more direct route. Google Maps gives either the same amount of time for both routes or 1 minute less for the more direct route (leaving and coming back to RI 100), and the more direct route is 1.1 miles less.

RI 100 seems to be part of a pattern where 94, 96, 98, 100, and 102 are all in the same area. (104 is decently close, but that's probably a coincidence.)

[Mapmikey]

SC 100 was decommissioned in 1947.  It was a minor route from SC 9 to Cheraw State Park.

The current SC 9 route around central Chesterfield uses part of former SC 100.

NC 100 has used both the current routing and US 70's routing between the endpoints.  It swapped alignments in 1930.

VA's original VA 100 was just the 0.15 mile piece of US 25E south of US 58 (then US 411).  The surviving part of this is 150 ft of SR 872 from the southwest Tennessee crossing.

[froggie]

I wouldn't call the modern MN 100 a bypass as much as a feeder route to get people between the western suburbs and downtown via I-394. They finally rebuilt the 1930s-era stretch between Excelsior Blvd and 25th St a few years ago, but before that the route between Excelsior and 394 was complete unmitigated misery every afternoon in both directions, and southbound between 394 and Excelsior still sucks now.

It was once a loop too with 110 (now 62) and 120 and 96

I think the only part of MN-100 that was *always* freeway was that 1930s-era stretch from the railroad bridges to Glenwood (CSAH-40), with interchanges at MN-7, Mtka Blvd, Cedar Lake, US-12 (now I-394).

Not true.  There were several intersections along this stretch that lasted well into the 1940s, most notably at Cedar Lake Rd but as far south as West 28th.

I think the Glenwood and 36th intersections were signalized until the 1980s.

Glenwood became a diamond interchange in the 1960s (rebuilt into the current configuration in the '80s).  36th was upgraded ca. 1984.

[hobsini2]

WI 100 was the beltline bypass around Milwaukee before there were freeways.  It's still there on much of its original routing.

Also, the German A100 is the inner loop freeway around the southeast (clockwise) to the northwest sides of Berlin.

Mike

Hwy 100 is one of those interesting roads that over its length changes in how it is used.
Starting with Ryan Rd on the south, a 4 lane boulevard between Wis 32 (Chicago Rd) and S 60th St.
Then becomes a 2 lane country road from S 60th St to Wis 36 (Loomis Rd).
As it turns north and becomes Lovers Lane/108th St/Mayfair Rd, at Church St, it becomes a 4 lane divided boulevard again with an interchange at Rawson Ave.
North of I-43, it becomes a 6 lane boulevard and a main business/retail district all the way to Burleigh St before being more of residential boulevard to Silver Spring Dr before joining I-41/US 41/US 45.
Follows I-41 to Brown Deer Rd and becomes another 4 lane boulevard between I-41 and I-43.
Side note that it has a cool diagram sign on I-43.
https://www.google.com/maps/@43.1682874,-87.915535,3a,75y,354.82h,95.32t/data=!3m6!1e1!3m4!1scppUzOvqU_MKwQFpKhGfBg!2e0!7i16384!8i8192?hl=en

[GaryV]

Side note that it has a cool diagram sign on I-43.
https://www.google.com/maps/@43.1682874,-87.915535,3a,75y,354.82h,95.32t/data=!3m6!1e1!3m4!1scppUzOvqU_MKwQFpKhGfBg!2e0!7i16384!8i8192?hl=en

Meh.  The road name should not be split by the arrow like that.  To me it looks like if you exit to the west you'll be going to some place named Brown, and if you exit east you'll be on Deer Rd.

[kphoger]

Side note that it has a cool diagram sign on I-43.
https://www.google.com/maps/@43.1682874,-87.915535,3a,75y,354.82h,95.32t/data=!3m6!1e1!3m4!1scppUzOvqU_MKwQFpKhGfBg!2e0!7i16384!8i8192?hl=en

Meh.  The road name should not be split by the arrow like that.  To me it looks like if you exit to the west you'll be going to some place named Brown, and if you exit east you'll be on Deer Rd.

I agree.  Bad choice.

[thefraze_1020]

Washington State has a SR-100. It is in the far southwest corner of the state, starting and ending in Ilwaco. To my knowledge, it is the only highway in the state to be signed as a loop. All reassurance shields have a "loop" banner instead of a cardinal direction. Also, this road has a very short, unsigned spur. Overall, a very insignificant road, a branch off US-101 to serve Cape Disappointment State Park and the U.S. Coast Guard station nearby.

[Jaxrunner]

GA 100 is a two lane road that runs north to south in the western part of Georgia. It doesn't go through any major cities and I only use it cut from I 85 to US 27 to bypass Lagrange GA on my way to Northwest GA.

[X99]

SD 100 is an under-construction second southeast loop of Sioux Falls, built as a partial at-grade and partial limited-access freeway.

[paulthemapguy]

Interesting that WI-100 and IN-100 (former) both are (were) loop roads around the state's largest city, and that MO-100 and IL-100 both follow the state's titular river.

[roadman65]

If the NJ Turnpike got built as a free road, it would have been NJ 100.  My dad told me about it and if you research it you can find info about it.

[Bruce]

WA 100 is a minor spur of US 101 that is unique in its own right: it loops around and terminates at itself, serving Cape Disappointment at the mouth of the Columbia River (Wimahl / Nch'i-Wàna).

[DJ Particle]

Interesting that WI-100 and IN-100 (former) both are (were) loop roads around the state's largest city, and that MO-100 and IL-100 both follow the state's titular river.

As was MN-100 until about 1960(?).  The current MN-100 is all that's left that's still labeled such.

Please correct me if I'm wrong, but I think this is the route to take if you want to trace (as closely as possible) old MN-100:

Starting at the current beginning of MN-100 in Bloomington, MN:

MN-100 North - full length
I-694 East - to Long Lake Road exit, right at end of ramp.
10th St. NW East - to Old Hwy 8 NW
Old Hwy 8 NW North - to CSAH-96
CSAH-96 East - full length
US-61 North - to MN-96
MN-96 East - to MN-244
MN-244 South - full length (to E County Line Rd, formerly MN-120)
E County Line Rd South, becomes Geneva Ave N after crossing I-694, then becomes MN-120 after crossing MN-36.
MN-120 South - full length - becomes CSAH-25/72 after crossing I-94 (this is Century Ave, named after its former designation as MN-100)
CSAH-25/72 South - full length (to I-494)
I-494 South/West - to MN-62
MN-62 West - to MN-5
MN-5 West (including I-494 concurrency) - to MN-100.

[froggie]

^ Depends on your definition of "old MN 100".  Prior to Lilac Way and the 4-lane being built, MN 100 ran along several city streets.

Also worth noting that, prior to completion of the original Wakota Bridge in the late 1950s, MN 100 ran across the old (and no longer existing) Rock Island Swing Bridge between 66th St E in Inver Grove Heights and 3rd Ave in St. Paul Park.

The routing that MN 5/MN 100 took through Fort Snelling also no longer exists in full.  Bloomington Rd near the base and the old fort proper was part of that routing.

[TheHighwayMan3561]

Was Belt Line Blvd in St. Louis Park one of them? I was always curious about the name of that street.

[froggie]

^ No, Belt Line was definitely not one of the early alignments.  That road didn't even exist in full until the 1980s, in part because the land between Park Glen Rd and the bike path was part of a big railyard until then.

From then-78th St (then-MN 5) to roughly Excelsior Blvd, 1934-era MN 100 was more or less within its current right-of-way...it's possible it made a slight westward jog between Eden Ave and Vernon Ave (then-US 169/212) and/or a slight eastward jog just south of Excelsior Blvd.  North of Excelsior, it followed Wooddale Ave and Dakota Ave to Minnetonka Blvd, then followed Minnetonka Blvd west to Louisiana Ave.  It took Louisiana Ave north to Wayzata Blvd (because Louisiana had a bridge over the BNSF tracks) then turned back east along Wayzata.

North of Wayzata, it gets a little murky.  My best guess is it took the OLD Turners Crossroads due north from Wayzata Blvd.  This road rejoined today's MN 100 alignment in the vicinity of Olson Hwy (MN 55).  The roadway turned left, though, at St. Croix Ave (just south of Duluth St/CSAH 66), and took that to Douglas Dr (today's CSAH 102), which it then followed north to end at West Broadway (then-US 52).

It's worth noting that this routing *ONLY* appeared on the 1934 state highway map.  The 1935 state map shows it missing north of MN 7, though it's worth noting that MN 7 was relocated off Excelsior Blvd and onto its current alignment in 1934, and construction on Lilac Drive (today's MN 100 alignment) was begun by then, being finished in 1936 north of Wayzata Blvd and in 1938 between Excelsior and Wayzata.  County maps of the time (1934-1936) showed the proposed alignment along Lilac Drive.

[DandyDan]

Also worth noting that, prior to completion of the original Wakota Bridge in the late 1950s, MN 100 ran across the old (and no longer existing) Rock Island Swing Bridge between 66th St E in Inver Grove Heights and 3rd Ave in St. Paul Park.

Not to sound overly technical, but the western part of the Rock Island Swing Bridge DOES exist, as part of the IGH park system. https://www.ci.inver-grove-heights.mn.us/545/Swing-Bridge-Park

I would love to see a map that shows MN 100 over the old swing bridge, or at least a link to the map.

[froggie]

^ Every state highway map from 1939 through 1959 shows it.  Here's a clip from the 1939 state map: