Hochbrücke Brunsbüttel, Steel bridge in Brunsbüttel, Germany.

Hochbrücke Brunsbüttel is a steel bridge crossing the Kiel Canal and serving as a major traffic connection between both sides. The structure uses truss design with steel girders and supports multiple traffic lanes across the waterway.

The bridge was built during the early 1980s to improve traffic flow across the Kiel Canal. Its completion marked an important step forward for infrastructure in this port region.

The bridge carries the B5 road east of Brunsbüttel and is crossed daily by commuters and freight traffic between the Elbe estuary and the North Sea coast. Its 42-metre clearance lets ships pass beneath on the Kiel Canal, so road and water traffic share the same corridor. The structure is a landmark for drivers approaching the canal.

The bridge deck reaches about 44 m above the canal, with a clear passage height of 42 m for ships. The western ramp climbs at 3.97 % and the eastern at 2.77 %, and the crossing meets the canal at an angle of 58 degrees. The structure carries four lanes of the B5 east of Brunsbüttel.

The eastern ramp bridge has 29 spans and is longer than the western one; its last five spans widen to 25.3 m for an exit lane and were built on falsework. During construction, milk-of-lime water seepage near the longitudinal tendons led to 653 tendon couplings being drilled open and inspected endoscopically, revealing 138 small and 17 large voids that were later filled.