Magdeburg Water Bridge: River Above River

Here is Magdeburg Water Bridge: River Above River.
Six years, 500 million euros, 918 meters long. The Channel across the River Elbe.

Ships sail through the water bridge

The day of inauguration

The channel could handle Europe-class freighters up to 360 feet long and barge trains up to 610 feet in length. The bridge can carry vessels up to 105 feet wide in water 14 feet deep.

Reference:
http://urbanlegends.about.com/library/bl_water_bridge.htm
http://www.profsurv.com/magazine/article.aspx?i=70324
http://www.amusingplanet.com/2011/04/incredible-magdeburg-water-bridge-in.html