U.S. Route 1 in Florida

U.S. Highway 1
Route information
Maintained by FDOT
Length:	545.03 mi (877.14 km)
Existed:	November 11, 1926 – present
Tourist routes:	Florida Keys Scenic Highway
Major junctions
South end:	SR 5 in Key West
	US 41 in Miami I-595 in Fort Lauderdale US 98 / SR 80 in West Palm Beach SR 70 in Fort Pierce SR 60 in Vero Beach US 192 in Melbourne US 92 in Daytona Beach SR 16 in St. Augustine US 90 in Jacksonville
North end:	US 1 / US 23 / US 301 / SR 4 / SR 15 near Folkston, GA
Location
Counties:	Monroe, Miami-Dade, Broward, Palm Beach, Martin, St Lucie, Indian River, Brevard, Volusia, Flagler, St. Johns, Duval, Nassau
Highway system
United States Numbered Highway System List Special Divided Replaced Florida State Highway System Interstate US SR Former Pre-1945 Toll Scenic ← SR 9336 SR A1A → ← SR 804 SR 806 →

U.S. Highway 1 (US 1) in Florida runs 545 miles (877 km) along the state's east coast from Key West to its crossing of the St. Marys River into Georgia north of Boulogne, and south of Folkston. US 1 was designated through Florida when the United States Numbered Highway System was established in 1926. The road is maintained by the Florida Department of Transportation (FDOT).

From its national southern terminus in Key West, US 1 carries the Overseas Highway—the Keys main highway north to the mainland, entering South Florida. From South Florida to Jacksonville, US 1 runs close to the coastline of the Atlantic Ocean and the Intracoastal Waterway, generally east of Interstate 95 (I-95) and west of State Road A1A (SR A1A), running roughly parallel with both roads. North of Jacksonville, US 1 curves inland towards the St. Mary's River as it enters Georgia.

As is the case with all Florida roads with national designations, the entirety of US 1 has a hidden FDOT designation:

Among other designations, US 1 is a designated Blue Star Memorial Highway along its entire route through the state. Markers are placed at various locations, including one in Rockledge and Fort Lauderdale.

...
Wikipedia