List of unsigned auxiliary Interstate Highways

From Wikipedia, the free encyclopedia

Some auxiliary Interstate Highways are not signed, typically because the routes are already known by another name, and marking them could confuse motorists. A small fraction of three-digit Interstates, especially very short ones (in terms of physical length), are not signed.

Interstate	Vicinity	Description
I-305	Sacramento, CA	Signed as US 50 and Business Loop I-80. It was part of I-80 until October 1983.
I-910	New Orleans, LA	Signed as Business Route US 90.
I-315	Great Falls, MT	Signed as Business Loop I-15.
I-124	Chattanooga, TN	Signed as US 27.
I-444	Tulsa, OK	Signed as US 75.
I-345	Dallas, TX	Signed US 75 (northbound) I-45 (southbound).
I-478	New York City, NY	Signed as the Brooklyn-Battery Tunnel.
I-878	New York City, NY	Signed as SR 878.
I-480N	Cleveland, OH	Signed as a connection between I-480 and I-271/US 422.
I-194	Bismarck, ND	Signed as SH 810.
I-495	Falmouth, ME	Signed as a connection between I-95 and I-295. It was redesignated from part of I-95 on January 5, 2004 Also known as the Falmouth Spur of the Maine Turnpike, with mile markers starting with the prefix FS-.
I-595	Annapolis, MD	Signed as US 50 from the Washington, D.C., area east to Annapolis, Maryland.
I-296	Grand Rapids, MI	Signed as US 131.

External links

Kurumi - 3-digit Interstate Highways

Main Interstate Highways

Signed

2
4
5
8
10
12
15
16
17
19
20
22
24
25
26
27
29
30
35
37
39
40
43
44
45
49
55
57
59
64
65
66
68
69
70
71
72
73
74
75
76 (W)
76 (E)
77
78
79
80
81
82
83
84 (W)
84 (E)
85
86 (W)
86 (E)
87
88 (W)
88 (E)
89
90
91
93
94
95
96
97
99
H-1
H-2
H-3

Unsigned

Lists

Primary	Main Intrastate Suffixed Temporary Future Gaps

Auxiliary	Main Future Unsigned

Other	Standards Business Bypassed Tolled

Major Interstates highlighted

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