At one point, the western terminus was truncated to Florida's Turnpike (SR 91), five miles (8 km) to the east of the current western terminus, and extended to SR A1A at the eastern end.
Previously, the western endpoint was truncated to Florida's Turnpike (SR 91), which is five miles (8 km) east of the current western point, and subsequently extended to SR A1A at the eastern extremity.