U.S. Route 98 is an east–west United States Highway in the Southeastern United States that runs from western Mississippi to southern Florida. It was established in 1933 as a route between Pensacola and Apalachicola, Florida, and has since been extended westward into Mississippi and eastward across the Florida Peninsula. It runs along much of the Gulf Coast between Mobile, Alabama, and Crystal River, Florida, including extensive sections closely following the coast between Mobile and St. Marks, Florida. The highway's western terminus is with US 84 in Bude, Mississippi. Its eastern terminus is Palm Beach, Florida, at State Road A1A (SR A1A) near the Mar-a-Lago resort.
Eastern terminus of US 98/SR 80 at a roundabout with SR A1A in Palm Beach.
United States Numbered Highway System
The United States Numbered Highway System is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these highways were coordinated among the states, they are sometimes called Federal Highways, but the roadways were built and have always been maintained by state or local governments since their initial designation in 1926.
The "final" U.S. Highway plan as approved November 11, 1926
This sign, photographed in 1941 on US 99 between Seattle, Washington, and Portland, Oregon, illustrates one rationale for a federal highway system: national defense.