2909 miles long. Eastern end at Teaneck, NJ where it meets I-95. Western end at San Francisco, CA at US 101.
Spur routes:
- I-280, I-380, I-580, I-680, I-780, I-880, and I-980 in the SanFran Bay Area
- I-180 in Cheyenne, WY
- I-180 in Lincoln, NE
- I-480 and I-680 in Omaha, NE
- I-380 in Waterloo, IA
- I-280 in the Quad Cities
- I-180 in Hennepin, IL
- I-280 in Toledo, OH
- I-480 in Cleveland, OH
- I-680 in Youngstown, OH
- I-180 in Williamsport, PA
- I-380 in Scranton, PA
- I-280 in The Oranges, NJ