page_title: U.S. Route 1 in Florida
section_title: Treasure Coast
hierarchical_section_title: U.S. Route 1 in Florida / Route description / Treasure Coast
caption_attribution_description: Fort Pierce, Florida: US 1 near Harbor Branch Oceanographic Institution, looking north
context_page_description: U.S. Highway 1 in Florida runs 545 miles 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.
  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 and west of State Road 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:
context_section_description: As US 1 makes its way into Martin County, it passes through Jonathan Dickinson State Park before crossing over the Florida East Coast Railway tracks. At the southern end of Hobe Sound, A1A splits off onto its own route. The two roads parallel each other until Stuart. Through the center of Hobe Sound it intersects County Road 708. It then leaves Hobe Sound and enters Port Salerno before it enters the heart Stuart, where it intersects State Road 714 near SR 714's eastern terminus at the northwestern end of Witham Field. SR 714 ends less than a mile east at A1A. Through the center of Stuart it meets State Road 76. US 1 then crosses a bridge over the St. Lucie River. North of the bridge it crosses over the Florida East Coast Railway tracks again and meets County Road 707. Two miles north of the river, it leaves Stuart and enters Jensen Beach, intersecting Jensen Beach Boulevard and passing by Treasure Coast Square. One and a half miles north of Treasure Coast Square, US 1 leaves Martin County.
  As US 1 enters St. Lucie County and Port Saint Lucie, it first meets the eastern terminus of Port Saint Lucie Boulevard. Further north, Crosstown Parkway (westbound) and Village Green Drive (eastbound) intersect with US 1 approximately halfway between Prima Vista Boulevard and PSL Boulevard; along with Prima Vista Blvd., Crosstown Parkway provides Port St. Lucie with a much needed second, higher-capacity direct connection between US 1 and Interstate 95. Continuing north into White City it intersects County Road 712 (Midway Road). In Fort Pierce it meets the eastern terminus of State Road 70 and, a few miles to the north, State Road 68. A one-mile-long (1.6 km) concurrency with A1A begins a few blocks north of SR 68 as the two roads enter the village of Saint Lucie. After A1A diverges back to its own route to the beach, US 1 meets the southern terminus of State Road 608. As it continues north of it meets the eastern terminus of State Road 615, State Road 614, as well as State Road 713. North of SR 713, US 1 veers east, crosses the Florida East Coast Railway tracks, and leaves St. Lucie County.
  US 1 enters Indian River County just north of the SR 713 intersection, with its first major intersection in the county being County Road 606 in Oslo. US 1 then runs parallel with the Florida East Coast Railroad, entering central Vero Beach, where it's locally known as Commerce Boulevard. It intersects SR 656 (16th/17th Street), and State Road 60 (20th Street), and passes by the eastern end of the Vero Beach Municipal Airport. At the northeast end of the airport, US 1 has an intersection with State Road 605, with SR 605 paralleling US 1 one block to the west before leaving Vero Beach. North of Vero Beach, US 1 travels through the villages of Gifford and Winter Beach. In Wabasso, US 1 intersects State Road 510, where US 1 begins a concurrency with Indian River Lagoon Scenic Highway. US 1 then intersects with SR 605 one block north of SR 510. US 1 then travels north to central Sebastian, where it intersects with CR 512 (Sebastian Boulevard), providing access to Fellsmere and Interstate 95. It then enters Roseland, intersecting CR 505 a half mile south of US 1's crossing of the St. Sebastian River, where it leaves Indian River County.
caption: US 1, looking north from the Harbor Branch Oceanographic Institute entrance
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