Florida State Road 51

State Road 51
State Road 51
	Florida State Road 51, signed (red) and unsigned (blue)
Route information
	Maintained by FDOT
Length	70.447 mi (113.373 km)
Existed	1945–present
Major junctions
South end	CR 361 in Steinhatchee
	US 27 in Mayo; US 90 / US 129 in Live Oak
North end	US 41 / US 129 / SR 6 in Jasper
Location
Country	United States
State	Florida
Counties	Taylor, Dixie, Lafayette, Suwannee, Hamilton
Highway system
	Florida State Highway System; Interstate; US; State Former; Pre‑1945; ; Toll; Scenic;

State Road 51 (SR 51) is a north–south state highway in north Florida. Its northern terminus is along the overlap of US 41 and US 129. It runs southwards as the "secret" designation of US 129 to Live Oak, where it splits off and runs independently south to Steinhatchee. The Hal W. Adams Bridge carries it across the Suwannee River three miles (5 km) north of Mayo.

County Road 51 runs north from US 41/129 and SR 6 in Jasper to the Georgia border.

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