Worlds longest bridge; 100 miles long.

Danyang–Kunshan Grand Bridge - built in 4 years in China.

 

The article didn't mention a toll.

 

I've only seen tolls on the freeways; haven't seen any on bridges. Yes, I did see one, but the bridge wasn't very long.

 

5.6 miles of it is over open water.

The bridge is located on the rail line between Shanghai and Nanjing in East China’s Jiangsu province. It is in the Yangtze River Delta where the geography is characterized by lowland rice paddies, canals, rivers, and lakes. The bridge runs roughly parallel to the Yangtze River, about 8 to 80 km (5 to 50 mi) south of the river. It passes through the northern edges of population centers (from west to east) beginning in Danyang, Changzhou, Wuxi, Suzhou, and ending in Kunshan. There is a 9-kilometre long (5.6 mi) section over open water across Yangcheng Lake in Suzhou.[1]
It was completed in 2010 and opened in 2011. Employing 10,000 people, construction took four years and cost about $8.5 billion.[1] The Danyang–Kunshan Grand Bridge currently holds the Guinness World Record for the longest bridge in the world in any category as of June 2011[update].[2]

 

China also built the worlds highest tunnel to tunnel bridge: Anzhaite Long-span Suspension Bridge

Can see the zig-zag road the people used to have to take before the bridge was built.
With a main span of 1,146 metres (3,760 ft) and a deck height of 336 metres (1,102 ft),[4] as of 2013[update], it is the seventh-highest bridge in the world and the world's fifteenth-longest suspension bridge. Of the world's 400 or so highest bridges, none has a main span as long as Aizhai.[5] It is also the world's highest and longest tunnel-to-tunnel bridge.[6] The bridge contains 1888 lights to increase visibility at night.[7]