The Miami metropolitan area is served by five interstate highways operated by the Florida Department of Transportation (FDOT) in conjunction with local agencies. Interstate 95 (I-95) runs north to south along the coast, ending just south of Downtown Miami at South Dixie Highway (US 1). I-75 runs east to west, turning south in western Broward County and connecting suburban north Miami-Dade to Naples on the Southwest Coast via Alligator Alley, which transverses the Florida Everglades before turning north. I-595 connects the Broward coast and downtown Fort Lauderdale to I-75 and Alligator Alley. In Miami, I-195 and I-395 relay the main I-95 route east to Biscayne Boulevard (US 1) and Miami Beach across Biscayne Bay via the Julia Tuttle and MacArthur causeways.