The dam's original construction required approximately 260,000 cubic meters of masonry.
The 1943 breach released millions of tons of water, resulting in the destruction of over 100 homes and significant downstream flooding.
The reservoir covers an area of approximately 10.3 square kilometers when full.
The dam's base width is 34.5 meters, tapering to 6.25 meters at the crest.
The reservoir provides drinking water and flood protection for the downstream Ruhr area industries.
A memorial plaque is located near the dam site commemorating the lives lost during the 1943 flood event.
The Möhne Dam is a 650-meter-long stone masonry structure completed in 1913 to regulate the water levels of the Ruhr river basin. It functions as part of a vital reservoir system, creating the Möhnesee, the largest lake in the Sauerland region. During World War II, the dam was the primary target of the British 'Dambusters' raid (Operation Chastise) on May 17, 1943, which caused a catastrophic breach. The structure was reconstructed within months of the 1943 attack to restore industrial water supply. Today, the site features a wide walkway open to pedestrians, offering views of the reservoir and the surrounding Arnsberg Forest Nature Park. Boat tours operate on the lake, providing direct views of the dam's wall from the water. The site serves as a regional hub for water sports, including sailing, surfing, and diving. Visitors can traverse the crest of the wall, which remains a protected industrial monument.
From the water-side embankments during sunset to capture the reflection of the stone wall.
Combine your walk across the dam with a boat trip to see the masonry from the water level.
Visit the nearby 'Haus des Gastes' for historical context regarding the 1943 aerial bombardment.
Bring binoculars if you are interested in local birdwatching, as the reservoir is a significant habitat.
Do not attempt to swim in the reservoir outside of designated bathing zones.
The dam walkway is accessible year-round, but boat tour services are seasonal, typically operating from spring through autumn.
Maintain pedestrian-only behavior on the crest; keep dogs on a leash.
