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Interstate 37

Interstate 37

Total length: 143 miles (230 km)
Southern terminus: Corpus Christi, TX, at JCT U.S. 181/TX 35
Northern terminus: San Antonio, TX, at JCT I-35

States traversed & length in each:

  • Texas — 143 miles (230 km)

Major cities along route:

  • Corpus Christi, TX
  • San Antonio, TX

Junctions with non-related Interstates:

  • Interstate 410: Exit 133 in San Antonio, TX
  • Interstate 10: Exit 139A in San Antonio, TX
  • Interstate 35: Northern terminus in San Antonio, TX

Related loops and spurs:


Length I’ve traveled: None

Time zones:
Central — Entire length

Counties traversed:
Texas — Nueces, San Patricio, Live Oak, Atascosa, Bexar

A quick hypertext drive: Interstate 37 exists primarily to connect Corpus Christi, one of the largest cities of far southern Texas, to the rest of the Interstate system; it also facilitates commerce, as Corpus Christi is an important port. Additionally, it speeds evacuation of the lower Texas Gulf Coast region in the event of an approaching hurricane.

I have never driven on I-37 at all. If you have traveled the route and can provide a description of it for me, please e-mail me.

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