List of Gaps in Interstate Highways - Disputed Gaps

Disputed Gaps

Gaps where different criteria constitute contradictory circumstances.

• I-90 at the Chicago Skyway — Historically, the Skyway was commonly considered to be, and was signed as, part of I-90 (originally I-94). However, around 1999, the City of Chicago determined it may never have applied for approval to sign it as an Interstate. (It also is not designed to Interstate standards.) The city re-signed the Skyway, and it is now mostly posted with "TO I-90/94" signs with a few older signs remaining. However, the Illinois Department of Transportation has always and continues to report the Skyway as part of the Interstate system, and the Federal Highway Administration still considers it as such. A FHWA legal memo says "There is no doubt about it. The Chicago Skyway is officially part of I-90 that (has) always been included in the Dwight D. Eisenhower National System of Interstate and Defense Highways."
• The northern end of the I-99 freeway ends less than a mile from I-80 in Pennsylvania, and motorists can continue north on US 220/PA 26 along a surface street to grade-level ramps to access I-80.
• I-265. The Indiana portion of I-265 does not yet connect with the Kentucky portion of I-265. Each of the two segments, circling the outskirts and suburbs of Louisville, ends before crossing the Ohio River, making them completely in separate states. Plans for constructing a bridge to connect the two segments have been finalized, though the project is far from complete.