Interstate 9 is an example of a future Interstate Highway. It is designated to run along old US 99.
Future Primary Interstate Highways[]
Future Auxiliary Interstate Highways[]
- Interstate 310 (I-310) is a proposed auxiliary route of I-10 in Gulfport, Mississippi. It is planned to travel from U.S. Route 90 (US 90) near the Port of Gulfport to I-10.
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| Signed | 1 • 2 • 3 • 4 • 5 • 7 • 8 • 9 • 10 • 11 • 12 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 29 • 30 • 35 • 37 • 39 • 40 • 41 • 42 • 43 • 44 • 45 • 47 • 48 • 49 • 50 • 53 • 55 • 57 • 59 • 60 • 64 • 65 • 66 • 68 • 69 • 70 • 71 • 72 • 73 • 74 • 75 • 76 (CO–NE • OH–NJ) • 77 • 78 • 79 • 80 • 81 • 82 • 83 • 84 (OR–UT • PA–MA) • 85 • 86 (ID • PA–NY) • 87 (NC • NY) • 88 (IL • NY) • 89 • 90 • 91 • 92 • 93 • 94 • 95 • 96 • 97 • 98 • 99 • 101 • H-1 • H-2 • H-3 | ||||||||||
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| Unsigned | A-1 • A-2 • A-3 • A-4 • PR-1 • PR-2 • PR-3 | ||||||||||
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| Lists | Primary • Auxiliary • Intrastate • Suffixed • Business • Future • Former • Hypothetical (Auxiliary • Business) | ||||||||||
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| Other | Standards • Intrastate • Temporary • Bypassed • Gaps • Tolled | ||||||||||
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| Major Interstates are written in bold. |
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