Gaps in state highways

[J N Winkler]

I am pretty sure Nebraska's mileage cap is fixed by statute--that is certainly the case in Kansas.  The purpose of mileage caps is to prevent the state DOT from overcommitting itself.  The states which have mileage caps tend to give the state transportation agency head (or equivalent official) unfettered discretion to designate state highways, subject to certain other constraints--in Kansas there is a general expectation that a county will have at least a north-south and an east-west state highway, with other routes being fixed by the state DOT on the basis of traffic requirements and other considerations.

[Brandon]

^^
Indiana's got the same type of cap for INDOT, fixed by statute.  That's why you have so many routes on the I-465 beltway around Indy.  Last I looked, their mileage cap was 12,000 miles.

[njroadhorse]

GA 94 has a gap that is actually one segment of the gapped FL 2.

[dave19]

Why does US 422 have a gap?

Ausinterkid, read this web page for your answer:
http://wwwcf.fhwa.dot.gov/infrastructure/us22.cfm