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. Route description Gulf of Mexico through Lafayette County State Road 51 begins in Steinhatchee and throughout Taylor County, it follows the west bank of the Steinhatchee River. Within the community it runs along First Avenue South, Riverside Drive, both of which runs east and west. It then bears left onto Fourth Avenue South, which curves into 15th Street East, where it runs in its intended south-to-north direction for the first time. North of Steinhatchee SR 51 is named St. Linhatchee Drive and winds through the wetlands of southeastern Taylor County. After curving sharply to the northeast, the first truly major intersection is in Tennille, with the triple-overlap of US 19/98/ALT 27, a combination that spans from Chiefland to Perry. SR 51 curves back to the left, but still runs northeast. The road briefly enters the northwest corner of Dixie County near the Steinhatchee Springs Wildlife Management Area, only to cross over into Lafayette County. Still within the Steinhatchee Springs WMA, the road continues through southwestern Lafayette County, but suddenly starts to curve more to the east as it approaches the northern terminus of County Road 357 in Cooks Hammock. Continuing to curve to the east and move away from the southwestern portion of the county it crosses over the Steinhatchee River, but then starts to curve more northerly again, and even to the northwest before it approaches the western terminus of CR 360. The road curves back to the northeast and finally straightens out as it enters the Town of Mayo and becomes Fletcher Avenue. One other county road terminates at SR 51 in the town, specifically CR 355 which continues west as Pine Street. The much more important intersection is at the center of town which happens to be U.S. Route 27(West Main Street and East Man Street). From there it runs between Lafayette County Courthouse (Florida) which occupies the entire block between US 27