The Verrazano Narrows bridge
Until the building of the Narrows Bridge, the island's only connections with New York were ferries that crossed the harbor between the island, Manhattan and Brooklyn. Under normal conditions, the five miles crossing to Manhattan could be made in half an hour, the mile crossing to Brooklyn in about ten minutes. But if the bay was heavy with ice, or if a fog suddenly closed in, either trip could take much longer. And on clear days, when the ferries had no trouble in making their crossings on schedule, they were often so crowded, particularly on summer weekends, that drivers had to wait for hours to get to one. On the bridge, the crossing to Brooklyn can be made in three or four minutes.
From The Great Bridge by Edward M. Young and Lili Rethi
better seen large