Special routes of U.S. Route 90
U.S. Highway 90 Alternate is an alternate route of U.S. Highway 90 in Jacksonville, Florida, United States. It runs from the split of Beach Boulevard and Atlantic Boulevard east along Atlantic Boulevard (State Road 10; US 90 and SR 212 use Beach Boulevard) to Southside Boulevard (State Road 115), where it turns south to end at Beach Boulevard (US 90/SR 212).
U.S. Route 90 in Florida
Shortly after crossing the county line, US 90 continues to carry the name "Old Spanish Trail" where it enters the community of Bottle Branch and serves as the northern border of Eglin Air Force Base, although some private property occasionally can be found. Here the road serves as the northern terminus of State Road 285. Continuing along the northern edge of the base, US 90 and I-10 run parallel to each other, until the base territory ends, and I-10 moves to the southeast. In DeFuniak Springs, US 90 runs along the north side of the DeFuniak Springs Airport where it is joined in a concurrency with southbound US 331. After the airport US 90/331 runs along the north side of the DeFuniak Springs Country Club and then intersects a street named Baldwin Avenue, a city street with little importance other than the fact that it runs along the north side of the P&A Subdivision. This concurrency ends as US 331 turns south onto unmarked State Road 83 (Freeport Road), which joins US 90 as they both enter the DeFuniak Springs Historic District until it heads north onto North Ninth Street. US 90 doesn't leave the historic district until the intersection of Second Street, but it encounters three other local intersections after this. A sure sign that the road's presence in the city is coming to an end, is when it approaches the east end of Baldwin Avenue with Dorsey Avenue as the road curves to the northeast along the railroad tracks, eventually leaving DeFuniak Spring and turning more toward the east again.