was delayed. However, in September 1978, the Federal Highway Administration (FHWA) officially added the eastern of the route to the Interstate Highway System, with the official designation of I-595. In the early 1980s, I-595 was planned to be partially a toll freeway to cover its cost of construction. By the time construction started on July 26, 1984, the tolls for the freeway vanished, and it was built with only minor changes in its route. The first section, between I-75 and Hiatus Road opened in May 1988, with the section between Florida's Turnpike and US 1 opening on February 24, 1989, and the last section, connecting the disjointed sections opening on October 21, 1989. The freeway was designated as I-595 on June 11, 1990, and the Rainbow Interchange with I-95 was completed on March 22, 1991, the last unfinished interchange of the original plan. The portion of the freeway between I-95 and US 1 follows the right-of-way of the Port Everglades railroad tracks that had previously run from the CSX Transportation railroad to Port Everglades. In 2002, I-595, along with most of Florida's Interstates, switched over from a sequential exit numbering system to a mileage-based exit numbering system. Numbers were changed again at about the time the express lanes were opened in early 2014. On April 9, 2022, Pittsburgh Steelers quarterback Dwayne Haskins was killed after being struck by a dump truck near Davie when he was attempting to cross the westbound lanes of I-595 at 6:40 am near Fort Lauderdale–Hollywood International Airport and died at the scene. Express lanes The $1.8-billion (equivalent to $ in ) tolled SunPass express lanes project in the middle of the freeway to relieve the traffic congestion opened for test use on March 26, 2014, and started tolling on April 9, 2014. The express lanes will significantly improve the capacity and operations of the I-595 corridor by providing three additional at-grade lanes in the median of the corridor. The lanes will reverse direction in peak travel times (eastbound in the morning/westbound in the evening). To maximize the operational efficiency, the lanes will have tolls at varying rates throughout the day to optimize traffic flow, and access to and from the lanes will only be allowed west of 136th Avenue, east of US 441/SR 7, and through a direct connection to the median of Florida's Turnpike, removing long distance commuter traffic from the general purpose lanes.