Interstate 37

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Interstate 37 (abbreviated I-37) is an intrastate interstate highway located within the state of Texas, United States. Its southern terminus is in Corpus Christi, Texas at United States Highway 181; its northern terminus is in San Antonio, Texas at Interstate 35, where the road turns into US 281, continuing to northern San Antonio as a major freeway.

Contents

Length

  • Texas - 142 miles (228 km)

Major Cities Along the Route

Intersections with other Interstates

Spur Routes

None

Notes

I-37 ends at the only place in the country where an interstate, US highway, and a state highway terminate simultaneously, in Corpus Christi, TX.

Primary Interstate Highways Interstate Highway marker
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
99 238 H-1 H-2 H-3
Unsigned Interstate Highways
A-1 A-2 A-3 A-4 PRI-1 PRI-2 PRI-3
Lists
Two-digit Interstates - Three-digit Interstates
Gaps in Interstates - Intrastate Interstates
Interstate standards - Proposed Interstates
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