The road, known locally as a portion of Campbell Drive, North 8th Street and Southwest 312th Street, runs just over 3⁄4 mile (1.2 km) and serves as a truck bypass around downtown Homestead.

It is the highest numbered three-digit state highway in Florida.

SR 998 was created in 2019 as part of a road swap between the Florida Department of Transportation (FDOT) and the county of Miami-Dade as part of FDOT's Krome Avenue widening project.

[2][3] Since the portion of former SR 997 on Krome Avenue passes through a portion of downtown Homestead that could not accommodate a road widening, the state relinquished the highway to the county in exchange for Campbell Drive entering the state highway system.

[4][5] The entire route is in Homestead, Miami-Dade County.