Miami-Dade’s roadway network includes 28 miles of interstate freeways, 111 miles of Turnpike and other freeways, 581 miles of major roadways, and over 5,900 miles of local streets and roads. In all, that’s over 6,500 miles that must be maintained, policed, cleaned and frequently repaved or rebuilt. In addition there are over 110 bridges in Miami-Dade County