{{I-{{{1}}} aux}}
Template documentation3di displays a navbox for all the auxiliary Interstate routes associated with a parent route.
Usage:
{{3di|Parent Interstate #}}{{3di|Parent Interstate #|for the reused numbers such as I-76eastorwest}}
ex.
{{3di|96}}for Interstate 96:
 | ||
1Unsigned | ||
{{3di|76|east}}for Interstate 76 (east):
 | ||
| ||