Portmanteau roads

[KCRoadFan]

Here's an example of one from Bethesda, MD (just outside of DC):

First, a little background. Arlington Road is one of the main north-south streets in downtown Bethesda, connecting Old Georgetown Road with Bradley Boulevard. Paralleling Arlington Road to the west are a series of streets whose names begin with successive letters of the alphabet, namely: Beverly, Clarendon, Denton, Exeter, Fairfax, and Glenbrook.

However, in addition to the names mentioned, that sequence of streets also includes Exfair Road, which runs in between Exeter and Fairfax Roads and takes its name by combining the first syllable of both names - potentially causing confusion with Exeter Road just a block away.

I wonder how many letters, or pizzas, have been delivered to the wrong address over the decades because of that?

[CoreySamson]

Not really what the OP specified, but Texas and its neighboring states have an obsession with combining their names with their cities. There exists Texico, Texla, Texarkana, and Texhoma, not to mention Texline, which is also on a state border.

Also not really: the two nonrelated Eastex freeways in Houston and Beaumont.

[Bruce]

A fun example: Coskea Way in the outskirts of Edinburgh, which splits an IKEA and Costco,

https://goo.gl/maps/je6rqJ9V6hXA47c46