The speed of this current also has a broad maximum being above six knots from two hours and forty minutes after Bodø high tide until five and a half hours before the next Bodø high tide. The greatest northbound current occurs about four and a half hours after Bodø high tide, when the outflowing current reaches over 8 kn (15 km/h). The speed of the current has a broad maximum being greater than 6 kn (11 km/h) from three hours before Bodø high tide until half an hour after Bodø high tide. The greatest southbound current occurs about one and a quarter hours before Bodø high tide, when the inflowing current reaches about 7 knots (13 kilometres per hour). The Pilot’s description of the normal current is based on the time of the high tide at Bodø. The above account of the Saltstraumen is rather different than what The Norwegian Pilot reports. Saltstraumen and the Saltstraumen Bridge with the Børvasstindene mountains in the background When the current turns, there is a period when the strait is navigable. The height difference between the sea level and the fjord inside can be up to 1 m (3 ft 3 in). The current is created when the tide tries to fill Skjerstad Fjord. Before that, the area was different due to post-glacial rebound. Saltstraumen has existed for about two to three thousand years. At this point, one source claims that the tidal current can reach 40 km/h (25 mph). Vortices known as whirlpools or maelstroms up to 10 m (33 ft) in diameter and 5 m (16 ft) in depth are formed when the current is at its strongest. Up to 400 million cubic metres (110 billion US gallons) of seawater forces its way through a 3 km (1.9 mi) long and 150 m (490 ft) wide strait every six hours. Saltstraumen has one of the strongest tidal currents in the world. Saltstraumen current churning up phytoplankton blooms in a NASA satellite image Current The Saltstraumen Bridge on Norwegian County Road 17 crosses Saltstraumen. The narrow channel connects the outer Saltfjorden to the large Skjerstad Fjord between the islands of Straumøya and Knaplundsøya. It is located about 10 km (6.2 mi) southeast of the town of Bodø. It is located in the municipality of Bodø in Nordland county, Norway. Saltstraumen is a small strait with one of the strongest tidal currents in the world. ( October 2020) ( Learn how and when to remove this template message) Statements consisting only of original research should be removed. Please improve it by verifying the claims made and adding inline citations. This article possibly contains original research.
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