Cities with two-route beltways

[Alps]

I know already people will screw this up. I am looking at beltways that are entirely composed of two routes, that meet at both ends, unless the ocean or one of the Great Lakes interrupts them from making a full loop. Neither of the two routes can be a through route (2-digit Interstate, US Highway, etc.) - that rules out I-20 in the DFW area. Here's the list I came up with:

Detroit: 275/696
Minneapolis: 494/694
St. Louis: 255/270
Rochester: 390/590
Winnipeg: 100/101
London: M25/A282 (on a technicality)

Any others, either USA or abroad? (OT: it excites me that in two weeks, I'll have been on all of these except probably A282.)

EDIT: Winnipeg, not Calgary, duh

[froggie]

Your restriction against "through routes" rules out a couple possibilities (Norfolk, VA, future Greensboro, NC)

[NE2]

Orlando (future, almost): 417/429
Los Angeles (almost, three routes): 405, 210, 605
Phoenix (future, maybe almost): 101/202
Brooklyn-Queens (three routes): Belt, 278, 678
Baltimore (officially): I-695, MD 695
Jacksonville (former): I-295, SR 9A
Houston: Beltway 8, Sam Houston Tollway
Memphis (former): 240, 255
Charleston (future): I-526, SC 30
Trenton (future): I-195, NJ 29
Kansas City: I-435, Route 152
Maybe you can bullshit something out of Toronto.

[AsphaltPlanet]

Winnipeg: 100/101

[roadman65]

If two different designations of the same route number count, then I would say the TN 155/ TN Secondary 155 around Nashville.

[empirestate]

I know already people will screw this up.

Houston has two beltways.  

[corco]

Calgary: 100/101

Wait, what?

[FreewayDan]

I know already people will screw this up.

Houston has two beltways.  

Four if you count the Grand Parkway (TxDot-maintained SH 99/future county maintained Fort Bend Grand Parkway Toll Road) and if you want to consider F.M. 1960, plus all of SH 6 south of U.S. 290 down to the Texas City Y Interchange (I-45/SH 146 junction).

[NE2]

Not to mention: Houston actually counts because of the strange status of Beltway 8 wrt the Sam Houston Tollway.

[vdeane]

Rochester arguably has three with NY 104, especially since the western part of it in the city was to be made a freeway at one time.

EDIT: While I'm talking about cancelled roads: Syracuse: 481, NY 5 bypass (unbuilt), I-690, John Glenn Blvd (partly unbuilt)

[Alps]

Kansas City: I-435, Route 152

I-435 is a beltway in its own right...

[NE2]

Kansas City: I-435, Route 152

I-435 is a beltway in its own right...

Doesn't stop it from being part of a smaller loop with 152.

[pianocello]

Here are a couple close ones:
The 65/5 quarter-beltway around Des Moines
US-31/20 half-belt around South Bend
Whatever is going on between I-474 and IL-6 in Peoria in the future

[jp the roadgeek]

Boston: I-95/I-93/MA 128, and I-495
Philly (stretching here): I-476, I-276, NJTP or I-295
Hartford (killed off, except for a couple of pieces): I-291, I-491
Lowell, MA I-495, MA 213
Providence: I-295 (outer half belt), RI 10 (US 6/RI 10 briefly, inner half belt)
Wilmington, DE: I-495, DE 141 (unofficially)

[NE2]

I know already people will screw this up.

That took longer than expected.

[kkt]

In the San Francisco Bay Area, I-280 and I-880 meet at the south end and are only separated by the Bay Bridge at the north end.

[roadman65]

Tallahassee, FL has two routes assigned to its Capital Circle.  Both US 319 and FL 263 are the two separate routes that make up that particular loop that encompasses most of that city.

[empirestate]

Rochester arguably has three with NY 104, especially since the western part of it in the city was to be made a freeway at one time.

I thought of mentioning that too, but then I figured we could come up with all kinds of places that have triangles and squares of routes around them. :-)

[jwolfer]

Orlando (future, almost): 417/429
Los Angeles (almost, three routes): 405, 210, 605
Phoenix (future, maybe almost): 101/202
Brooklyn-Queens (three routes): Belt, 278, 678
Baltimore (officially): I-695, MD 695
Jacksonville (former): I-295, SR 9A
Houston: Beltway 8, Sam Houston Tollway
Memphis (former): 240, 255
Charleston (future): I-526, SC 30
Trenton (future): I-195, NJ 29
Kansas City: I-435, Route 152
Maybe you can bullshit something out of Toronto.

Although in Jax the entire beltway is/was SR 9A

[Alps]

Rochester arguably has three with NY 104, especially since the western part of it in the city was to be made a freeway at one time.

I thought of mentioning that too, but then I figured we could come up with all kinds of places that have triangles and squares of routes around them. :-)

Well, as per the original plans, 104 and 590 would have made a full freeway beltway.

[Revive 755]

Whatever is going on between I-474 and IL-6 in Peoria in the future

That one depends upon where the eastern terminus of the northern half ends up; last I heard some of the alternatives have the eastern terminus east of I-155, which would have part of the loop including a through route (I-74).

Providence: I-295 (outer half belt), RI 10 (US 6/RI 10 briefly, inner half belt)

Wasn't Providence at one time going to be a full with I-295 for the west half and I-895 for the east half?

St. Louis was originally going to be a three route beltway with I-270, I-244, and I-255.  But if one goes with original plans, St. Louis could be considered disqualified with I-255 north of I-55/I-70 being part of the unbuilt St. Louis - Quad Cities freeway, and the I-255/IL 3 overlap being an overlap with an unbuilt East St. Louis - Marion freeway.

The through out criteria throws out any hope of St. Louis going to three if the Gateway Connector would get built - there would be a short section joint with I-55/I-70 in Troy.

Chicago could have been another three route half beltway had the section of I-355 south of I-80 been built into Indiana and the IL 53 (I-594?) corridor been completed to I-94 near Gurnee - or does the section with I-290 count as a through route?

[NE2]

Wasn't Providence at one time going to be a full with I-295 for the west half and I-895 for the east half?

Only in the original plans; later the south end of I-895 would have been way to the south, after crossing the Jamestown Bridge.

St. Louis was originally going to be a three route beltway with I-270, I-244, and I-255.  But if one goes with original plans, St. Louis could be considered disqualified with I-255 north of I-55/I-70 being part of the unbuilt St. Louis - Quad Cities freeway, and the I-255/IL 3 overlap being an overlap with an unbuilt East St. Louis - Marion freeway.

That argument also disqualifies Minneapolis-St. Paul, since the loop route overlaps one of the radials.

[NJRoadfan]

Raleigh, NC counts as it is composed of I-440 and I-40 since the multiplex was eliminated. When completed the outer loop will be I-540, NC-540, and NC-540 TOLL (I'm only seperating that since NCDOT insists on doing it on their signs).

[NE2]

Neither of the two routes can be a through route (2-digit Interstate, US Highway, etc.) - that rules out I-20 in the DFW area.

[agentsteel53]

any of these meet a strict standard?  where the two halves end at each other, twice?

255/270 in St. Louis comes close: 255 continues north as IL-255, and 270 continues east (as I-270) for only a very short while.