The island's population grew in the 1950s and 1960s as the Space Race began and nearby NASA expanded. Construction of a barge canal to the Intracoastal Waterway from the Atlantic Ocean (for power plant oil shipments) cut off the northern half of the island for many years. To this day, the northern portion of the island remains slightly less developed, with a few areas remaining as cattle pasture or citrus land. The small towns on the island vanished with the coming of the Space Age, and now only live on in the names of streets and historic churches. In 1988, citizens defeated a proposed incorporation into a city, 77% opposed to 23% in favor.