Saltstraumen Bridge

 bridge, road bridge

The bridge is 768 metres long, the longest span is 160 metres, and the maximum clearance to the sea is 41 metres. The bridge has 10 spans.
Saltstraumen Bridge was opened in 1978.
In Norway this is a sea canal with high tides and whirpools with 35 feet in diameter. Every six hours, more than 105,000 gallons of water at speeds 25 miles per hour rush through the canal connecting Saltenfjord and the Skjerstadfjord.
Saltstraumen, which means salt current, is created when the tide fills or empties the Skjerstad fjord. The height difference of the sea surface can be as much as 3 feet between the inside and the outside of the narrow sound. In an attempt to level out the two sides the sound, the water increases in speed and turns into a swirling whirlpool as big as 35 feet in diameter.