The 5 Busiest Bridges in Brooklyn

3. Mill Basin Bridge
The only drawbridge along the Belt Parkway, this south coast span accommodated 140,800 vehicles a day in 2010. Yahoo named it one of America’s most dangerous bridges this month, giving it a three percent sufficiency rating. The bridge will be replaced by a higher bridge, 60 feet above the water, which will obviate the need for it to open up. Construction has just begun and is projected to be completed by 2017.