When Card Sound Bridge was opened, the State Road Department (the predecessor to the Florida Department of Transportation), extended the State Road 4A designation from downtown Homestead to Key West (prior to this, SR 4A went from the intersection of present-day U.S. Route 1 and US 41 in Miami to Homestead), even though there was still a 40 miles gap in the road between Lower Matecumbe Key and No Name Key. [