Only US 20 Isn't on the Sign

Freeway-style overhead signs on US 20 in Dubuque, Iowa

While US 20 isn't a freeway through downtown Dubuque, Iowa, large freeway-style signs are used. A detour sign refers to an exit on the US 61 quasi-freeway that separates the downtown area from the riverfront.

This photo was taken in June 2013.