Cities that have interstates (or US routes) with the same first number

[usends]

How about consecutive numbers?  My faves are:
Sikeston MO (which has US 60, 61, 62), and
Toledo OH (which had US 23, 24, 25 until 1974, when US 25 was truncated).

[Pete from Boston]

Metro NY also has:

278, 295, 287, 280. 

678, 695 (they even almost touch)

895, 878

495, unsigned 478

[The Nature Boy]

Would it be cheating to include Lumberton, NC and I-74 and US 74?

[hotdogPi]

Metro NY also has:

278, 295, 287, 280. 

678, 695 (they even almost touch)

895, 878, 80, 87

495, unsigned 478

You forgot two.

[Strider]

Memphis TN and Raleigh, NC: I-40 and I-440

That should be Nashville instead, Memphis has I-240.




You're right.. I meant to say Nashville.. oops, thanks for the correction.

[Pete from Boston]

Metro NY also has:

278, 295, 287, 280. 

678, 695 (they even almost touch)

895, 878, 80, 87

495, unsigned 478

You forgot two.

Already mentioned, hence "also."

[The High Plains Traveler]

Although U.S. 87 is essentially unsigned in Colorado, and U.S. 85 is only signed on segments independent of I-25, U.S. 85 and 87 are concurrent from the New Mexico line to Castle Rock. Thus, they are concurrent in Trinidad, Walsenburg, Pueblo, Fountain (the first place where U.S. 85 is posted independent of I-25), Colorado Springs, and Castle Rock south of where 85 takes off by itself. Denver has both U.S. 85 and 87 mostly on different alignments, with 87 following I-25 incognito. Cheyenne WY has U.S. 85 and 87, both of them signed; 87 is on I-25.

[roadfro]

Las Vegas, NV: US 95 & US 93 (and formerly, US 91)

[theline]

There are so many possibilities that we could go on forever, and probably will. Here are some obscure ones in Indiana that I don't think have been mentioned:

Kokomo: US-35, US-31.
Plymouth: US-30, US-31.
Ft. Wayne: US-30, US-33; US-24, US-27.
Huntington: US-24, US-224.
Decatur: US-27, US-224.
Also in Indianapolis: US-31, US-36; US-40, US-421.

[roadman65]

Baltimore once had both US 111 and US 140.
Gettysburg once had US 15 and US 140.
Scranton once had US 6 and US 611.

Sikeston, MO still has US 60, 61, and 62.
Springfield, MO has US 60 and US 65 and once had US 66 into the mix as well.

[SSOWorld]

Green Bay and Milwaukee: (future) US(I)-41 and I-43 (I-94 does not count for Milwaukee)
Madison I-90, I-94 (I-39 does not count); US routes 12, 14, 18, 151] (51 does not count)

Chicago (triple up) I-55, I-57; I-90, I-94; I-290, I-294 (others do not count)

Not only do 12, 14, 18, 151 count - they follow each other for a time.
Historical perspective - 43 had been 141 - making 141 and 151 in Manitowoc a former pair.

[roadman65]

Waycross, GA has US 82 and US 84.  Both routes do concur for a short distance within its city limits as well.

[Duke87]

I like to brute force stuff, so here's every intersecting pair of 2dis with the same first digit:

10/12: Baton Rouge, LA and Slidell, LA
10/15: Ontario, CA
10/17: Phoenix, AZ
10/19: Tucson, AZ
20/26: Columbia, SC
30/35: Dallas/Fort Worth, TX
35/37: San Antonio, TX
40/49: Fort Smith, AR
41/43: Milwaukee, WI (eventually) and Green Bay, WI (eventually)
44/49: Joplin, MO
55/57: Sikeston, MO
64/65: Louisville, KY
64/69: Evansville, IN
65/69: Indianapolis, IN (eventually)
70/71: Columbus, OH
70/74: Indianapolis, IN
70/75: Dayton, OH
70/76: Denver, CO, New Stanton, PA, and Breezewood, PA
70/77: Cambridge, OH
70/79: Washington, PA
71/75: Cincinnati, OH
71/76: Seville, OH
73/74: wherever NC feels like it
74/75: Cincinnati, OH
74/77: Mt. Airy, NC
76/77: Akron, OH
76/79: Cranberry, PA
77/79: Charleston, WV
80/81: Hazelton, PA
80/84: Echo, UT
80/88: quad cities, IL
81/83: Harrisburg, PA
81/84: Scranton, PA
81/86: Binghamton, NY
81/88: Binghamton, NY
82/84: Hermiston, OR
84/86: Burley, ID and Middletown, NY (eventually)
84/87: Newburgh, NY
86/87: Harriman, NY (eventually)
90/91: Springfield, MA
90/93: Boston, MA
90/94: Billings, MT, Tomah, WI, Madison, WI, Chicago, IL, and Gary, IN
90/95: Weston, MA
91/93: St. Johnsbury, VT
91/95: New Haven, CT
93/95: Canton, MA and Reading, MA
94/96: Detroit, MI

Honorable mentions, but not quite:
20/22: Birmingham, AL
71/77: Cleveland, OH
72/74: Champaign, IL
87/88: Albany/Schenectady, NY
95/97: Baltimore, MD

[hotdogPi]

Honorable mentions, but not quite:
20/22: Birmingham, AL
71/77: Cleveland, OH
72/74: Champaign, IL
87/88: Albany/Schenectady, NY
95/97: Baltimore, MD

These still count, even though they don't quite touch.

[Charles2]

Richmond, VA: US 33 & US 360.

[Duke87]

For 3dis I believe this is the entire list of actual intersections:
105/110: Jefferson, CA
210/215: San Bernardino, CA (eventually)
255/270: Glen Carbon, IL
278/295: Bronx, NY
290/294: Bellwood, IL
435/470: Grandview, MO

The list of near misses is longer:
276/295: Florence, NJ
278/287: Metuchen/Elizabeth, NJ
280/287: Parsippany, NJ
440/430: Little Rock, AR
478/495: New York, NY
480/490: Cleveland, OH
635/670: Kansas City, MO
678/695: Bronx, NY

[english si]

3dis with 2dis

10/110 Los Angeles, CA
10/110 El Paso, TX
10/110 Baton Rouge, LA
10/110 Pensacola, FL
10/165 Mobile, AL (near miss)
15/115 Butte, MT
20/220 Shreveport, LA
20/220 Jackson, MS
20/285 Atlanta, GA
25/270 Denver, CO
29/229 St Joseph, MO
29/229 Sioux Falls, SD
35W/394 Minneapolis, MN
40/430 Little Rock, AR
49/435 Kansas City, MO
40/440 Little Rock, AR
40/440 Durham, NC
5/505 Dunnigan, CA
5/580 Tracy, CA
55/555 Turrel, AR (future)
64/664 Newport News, VA/Chesapeake, VA
8/805 San Diego, CA
80/880 Oakland, CA
85/840 Greensboro, NC
87/878 New York City, NY (miss)
87/895 Bronx, NY (near miss)
88/890 Schenectady (near miss)
90/990 Buffalo, NY (near miss)

[CNGL-Leudimin]

Extending this concept to other countries:

Montréal: 10, 13, 15, 19
Berlin: 10, 11, 12, 100, 111, 113, 114, 115
Manchester: M60, M61, M62, M66, M67, M602

I am only counting route systems that are their country's equivalent of Interstates.

Ontario's 400 series would be cheating

My hometown will get A-22 and A-23... if they ever complete the former.

[hbelkins]

Richmond, VA: US 33 & US 360.

and 301

[CNGL-Leudimin]

I like to brute force stuff, so here's every intersecting pair of 2dis with the same first digit:
[stuff]

05/08: San Diego, CA

[nexus73]

I-55 and US 51 in Hammond LA.  If the freeway is plugged up (hurricane evacuation/return) you can take US 51 and find clear sailing.

Rick

[Strider]

Would it be cheating to include Lumberton, NC and I-74 and US 74?

That counts. somebody in this thread mentioned I-41/US 41, but Rockingham, NC will be the talk since the town will have I-73, I-74 and US 74.

[jp the roadgeek]

Forgot: 10/110 Biloxi, MS. 
Future: 84/86 Middletown, NY.  For that matter...
Former: 84/86 East Hartford, CT

[golden eagle]

US 51 and 52 intersect in Sandoval, IL.

Did anyone mention US 40 and 41 in Terre Haute, IN?

[Perfxion]

Houston makes the list with I-69 and I-610.