Atlantic Boulevard is a highway in Duval County, Florida, that forms the easternmost portion of State Road 10 (SR 10) and is also part of U.S. Route 90 (US 90).
Atlantic Boulevard connects the mainland portion of the city of Jacksonville with the Jacksonville Beaches on a barrier island to the east. Its western terminus is at San Marco Square in the San Marco neighborhood, at an intersection with the northern terminus of Balis Place, where the roadway continues as San Marco Boulevard; it travels to the east to the Atlantic Ocean at the Jacksonville Beaches, forming the city line between Atlantic Beach on its north side and Neptune Beach on its south side.[1] Its eastern terminus is just to the east of a roundabout with the northern terminus of Midway Street on the city line.