Florida State Road 399

State Road 399 is a Florida State Road in Escambia and Santa Rosa, although in Santa Rosa County it is known as a county road. It is 28.33 miles (45.59 kilometers) long, mostly on Santa Rosa Island. It is an access road to Gulf Islands National Seashore. Along its entire route, it traversed into an area that the Longleaf Pines lie next to the sand dunes of the Gulf Of Mexico. The western terminus is at a parking lot at Fort Pickens. The eastern terminus is with an intersection of US 98–SR 30 in Navarre.

Route description

Beginning at the US 98–SR 30 in Navarre, it first heads north–south, traveling on the Navarre Bridge, which crosses Santa Rosa Sound from the mainland to Santa Rosa Island. The Navarre Bridge was a toll bridge with one cash and one Sunpass lane for southbound traffic until 2005 but it is now toll-free. In Pensacola Beach, the road splits, with the north–south causeway to US 98, and the other road leading to Fort Pickens, which is considered the main road. In Gulf Islands National Seashore, it ends as a cul-de-sac at a parking lot.

Note: U.S. roads are generally numbered under the assumed parameters that odd numbered roads run south-to-north, and even numbered roads run west-to-east direction in order to follow the order of their mileposts. However, this section of SR 399 runs almost exclusively west-to-east.