If you are not a Physics person, read the last paragraph and learn a fact of physics
Have you ever seen a river over a river? AMAZING.....
Magdeburg Water Bridge
Crosses River Elbe
Longest span 106 m
Total length 918 m (690 m over land and 228 m over water)
Width 34 m
Water depth 4.25 m
Clearance below 90.00 m x 6.25 m
Begin date 1997
Completion date 2003
Even after you see it, it is still hard to believe!
Water Bridge in Germany. What a feat!
Six years, 500 million euros, 918 meters long . . . now this is engineering!
This is a channel-bridge over the River Elbe and joins the former East and West Germany ,
As part of the unification project. It is located in the city of Magdeburg , near Berlin .
The photo was taken on the day of inauguration . . .
To those who appreciate engineering projects, here's a puzzle for you armchair engineers
. . . and physicists.
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, Or just the weight of the water?
It only needs to be designed to withstand the weight of the water!
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded.
The reunification of Germany and establishment of major water transport routes made the Water Bridge a priority again. Work started in 1997, with construction taking six years and costing €500 million. The water bridge now connects Berlin’s inland harbour network with the ports along the Rhine river. The aqueduct's trough structure incorporates 24,000 tonnes of steel and 68,000 cubic meters of concrete.
Until the opening of the water bridge in October 2003, ships moving between the Midland Canal and the Elbe-Havel Canal had to make a 12-kilometre zigzag detour, from the Midland Canal south-east through the Rothensee lock into the Elbe river, downstream north-east on the river, then back up to the Elbe-Havel Canal south-east through Niegripp lock.
The Incredible Magdeburg Water Bridge in Germany The Magdeburg Water Bridge is a navigable aqueduct in Germany that connects the Elbe-Havel Canal to the Mittelland Canal, and allows ships to cross over the Elbe River. At 918 meters, it is the longest navigable aqueduct in the world. The Elbe-Havel and Mittelland canals had previously met near Magdeburg but on opposite sides of the Elbe. Ships moving between the two had to make a 12-kilometer detour, descending from the Mittelland Canal through the Rothensee boat lift into the Elbe, then sailing downstream on the river, before entering the Elbe-Havel Canal through Niegripp lock. Low water levels in the Elbe often prevented fully laden canal barges from making this crossing, requiring time-consuming off-loading of cargo.
Construction of the water link was started as early as in the 1930s but due to the World War 2 and subsequent division of Germany the work remained suspended till 1997. The aqueduct was finally completed and opened to the public in 2003.
A double lock was constructed to descend to the Elbe-Havel Canal and a single Rothensee lock was constructed at the other end of the water bridge to descend to the Elbe and the Magdeburg harbour.
The bridge site is open to visitors and includes a parking lot, bicycle and pedestrian paths and informational signs detailing the history and construction of the bridge. The bridge itself is located outside of Hohenwarthe near the city of Magdeburg and is known locally as the Wasserstrassenkreuz Magdeburg.
Germany: The Magdeburg Water Bridge - Wasserstraßenkreuz Magdeburg