) at Bertha Street in
Key West Though SR A1A runs from Key West to north of Jacksonville, the designation is not one continuous route. In some areas such as the Florida Keys, there is no oceanfront highway (other than the
Overseas Highway, US 1), other parts of the coast are served by county roads (sometimes designated
County Road A1A) rather than state roads, and still other areas are restricted by geography (inlets) or usage (e.g. nature preserves and the
Kennedy Space Center). The longest of the route's seven sections runs from
Stuart to
Cocoa, while three of the sections are less than long The southern terminus of the first section of SR A1A is at the southern end of Bertha Street, where SR A1A begins as a two-lane, then a four-lane highway along the
Straits of Florida in
Key West, known locally as South Roosevelt Boulevard. The road heads east past
East Martello Tower and
Key West International Airport, before curving north with an intersection with
CR 5A (Flagler Avenue), followed by the northern terminus of the Key West section of SR A1A,
U.S. Route 1 and
State Road 5 (the
Overseas Highway). Running along the south shore of Key West, SR A1A is the southernmost numbered highway in the lower 48 states. SR A1A reappears at
Interstate 395 and
US 1 in
Miami, beginning at
MacArthur Causeway before becoming
Collins Avenue at Fifth Street in
Miami Beach (or, in small segments, Harding Avenue, Abbott Avenue, or Indian Creek Drive), serving as one of Miami Beach's main north — south thoroughfares. Just north in the town of
Surfside, the northbound is Collins Avenue, and the southbound is Harding Avenue. In
Bal Harbour it is called Bal Harbour Boulevard. In
Golden Beach it is called Ocean Boulevard. It serves
Hallandale Beach,
Hollywood Beach, and
Dania Beach. It joins with US 1 for 3.4 miles, and passes the
Fort Lauderdale–Hollywood International Airport. It then divides and serves
Fort Lauderdale,
Pompano Beach, and continuing north. It serves as the main road throughout much of the exclusive
Palm Beach, further to the north. In the area of
Vero Beach, SR A1A is called the Robert C. Spillman Memorial Highway, and it spans
Sebastian Inlet at the
Sebastian Inlet Bridge. SR A1A next passes just to the west of
Cape Canaveral and the
John F. Kennedy Space Center. Two miles of SR A1A were used as part of the well-known
Daytona Beach Road Course. SR A1A also passes through
St. Augustine, the oldest continuously-inhabited city on the mainland of the United States. SR A1A is called 3rd Street in
Jacksonville Beach and
Neptune Beach. Just south of
Atlantic Beach, SR A1A turns inland for several blocks, following Atlantic Boulevard, before resuming a northward course along Mayport Road that ends at the
St. Johns River. A
ferry takes traffic to the northern section of SR A1A that continues along the coast to just south of
Fort Clinch State Park on the estuary of the
Saint Mary's River. At that point SR A1A hooks back south to
Fernandina Beach and then turns west, going inland 20 miles through
Yulee and crossing
I-95 and
U.S. Highway 17. It ends at
U.S. Highway 1,
U.S. Highway 23, and
U.S. Highway 301 in
Callahan. This section west of Fernandina Beach, is also marked as
SR 200, but SR A1A signs are displayed at every cluster of signs, though a designated direction is only above the SR 200 signs. ==History==