Three-Digit Interstates by FlaxmanR

Question 11

At just over a mile long, Interstate 180 makes up the entirety of its state's triple-digit interstates, the smallest total distance within any state that has triple-digit interstate highways. (It is also notable for not being freeway-grade at any point during its brief length.) I-180 is a short spur - almost all of which can be seen in the attached photograph - that is located within which STATE CAPITAL?

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