Kategorie: News
The “Wrecks and Deep Sea” project provides fascinating insights into the history of Lake Constance
The most remarkable result of these investigations to date is the discovery of 31 previously unknown wrecks, which represent an exciting mix of cultural heritage and modern maritime history. Parts of lost ship cargoes have been discovered, as well as other exciting artifacts such as the hulls of paddle steamers and wooden barrels.
Since 2022, the Baden-Württemberg State Office for the Preservation of Historical Monuments has been systematically searching Lake Constance for previously unknown shipwrecks, cargo, and other cultural assets. The aim is to explore the diverse highs and lows of the lake, document the hidden witnesses of past times, and assess the condition and significance of the wrecks for science and monument preservation.
Innovative technology opens up new perspectives
The “Wrecks and Deep Sea” project is a major initiative by the State Office for the Preservation of Historical Monuments, which uses innovative technological methods to explore the complex structures of the lake bed. High-resolution sonar surveys, remote-controlled diving robots, and precise bathymetric reference data form the basis of the explorations. With the help of these methods, natural terrain formations, relics of human activity, and genuine wrecks can be reliably distinguished from one another. This combination makes it possible to survey even the deepest areas of the lake, down to a depth of 251 meters.
Since the start of the investigations in 2022, more than 250 notable anomalies have been recorded on the lake bed. Upon closer examination of 186 locations, the researchers finally discovered 31 previously unknown wrecks representing various types of ships, construction methods, and periods.
Fascinating finds in detail
One of the most impressive finds is a field of debris that is likely the remains of an old transport or merchant ship. The team discovered at least 17 well-preserved wooden barrels, a wooden handcart, and other objects. Some barrels are still complete with lids, others are damaged, and others may bear markings that could indicate their original cargo. It is not yet clear exactly which ship this is, but further investigations are planned to determine the origin and history of this find.
In addition to these cargo debris, the researchers also came across two large metal ship hulls, which are believed to be the remains of the well-known steamships “SD Baden” (formerly “Kaiser Wilhelm”) and “SD Friedrichshafen II.” The size and shape of the hulls make this identification seem likely, but final confirmation is still pending.
Another extremely rare find is an almost completely preserved cargo sailing ship. The ship still has its mast, rigging, and numerous other details. Due to the relatively low growth of quagga mussels, many structures are still clearly visible, allowing conclusions to be drawn about the shipbuilding knowledge of past times. Details such as clamps in the bow area, caulking pins, and a toothed ring with a ratchet reflect the construction and technology of sailing ships. This wreck provides important insights into the historical sailing technology and shipbuilding of Lake Constance and serves as an important reference object for research.
Methods and project structure
The project has been running since 2022 and is expected to continue until 2027. Its aim is to compile a comprehensive inventory of Lake Constance wrecks and improve the scientific investigation of their history, technical condition, and preservation.
The research work is divided into several phases: Initially, extensive bathymetric data was collected to map the lake bed. Potential anomalies are then examined in more detail using remote-controlled sonar systems and side-scan scanners to reveal shapes, surfaces, and structures. The most promising locations are then explored and documented in more detail by robotic divers (ROVs) or divers.
Since salvage operations are complex and expensive, the main focus is on securing the sites through detailed documentation. The underwater robots and divers from the State Office and other partners involved make it possible to reliably explore even great depths and preserve the wrecks in their current form for posterity.
Further information:
Constance State Archaeological Museum: www.alm-konstanz.de
Kreuzlingen Lake Museum: www.seemuseum.ch