Iowa's transportation system is made up of 114,000+ miles of road, 24,184 bridges, 107 publicly owned airports and 3,851 miles or railroad track.
Wochit, Des Moines Register: Business
Mon, 08/14/2017 - 8:16am
Iowa's transportation system is made up of 114,000+ miles of road, 24,184 bridges, 107 publicly owned airports and 3,851 miles or railroad track.