In the late 1970s and early 1980s, the railroad tracks were removed and houses along Southwest First Avenue between Southwest 15th Road and Southwest 12th Avenue were demolished to make room for Metrorail. The removal of this section of Southwest First Avenue resulted in a temporary lack of access of the Rickenbacker Causeway to southbound I-95 motorists (briefly, they were guided to it by way of Southwest Eighth Street (US 41-SR 90) and Brickell Avenue (US 1-SR 5). Ultimately (in the early 1980s), a new partial interchange was built for southbound I-95, this time at Southwest 25th and 26th Roads. This became the primary mode of access to Key Biscayne from the expressway.