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Lippetal - Herzfeld: Nov 2020

Bergung an der Lippe

Die Analyse der im August gewonnenen Daten und die nachfolgende Beobachtung des Schiffswracks aus der Lippe bei Herzfeld erbrachten deutliche Hinweise, dass der bedeutende Schiffsfund in der starken Strömung und einem sich ständig verändernden Sedimentbett stark gefährdet ist. Der Landschaftsverband Westfalen-Lippe mit seiner Außenstelle Olpe entschloss sich vor diesem Hintergrund zur Bergung, die von UwArc durchgeführt wird. Die über etwa acht Meter erhaltene Konstruktion muss zunächst von Forschungstauchern mit Saugapparaten freigelegt werden, bevor das Schiffsskelett an den noch intakten Holzverbindungen aufgetrennt werden kann. Anschließend werden die teilweise mehrere hundert Kilogramm wiegenden Bauteile mithilfe eines Frontladers einzeln geborgen, an Land gebracht, und schiffsarchäologisch dokumentiert.

Foto: P. Ferlemann Medienerklärung des LWL

Schiffsarchäologische Beobachtungen
2020-11-14, Martin Mainberger; Keywords: Lippe - Schiffswrack - Mittelalter - Unterwasserarchäologie - Underwater Archaeology
Schorfheide: Oct 2020

Archaeological-forensic investigation at Grosser Glasowsee Lake, Brandenburg

In 1945, an American bomber aircraft crashed into Grosser Glasowsee, a small lake about 40 km north of Berlin. Two personnel are still missing. Based on historical sources, it is to be assumed that their bodies are still buried in the debris of the crashed plane.

Following up to a first underwater archaeological evaluation in 2018, the Defense POW/MIA Accounting Agency (DPAA), with its Partnership and Innovation Department and in partnership with UwArc, conducted a systematic survey of the crash site. In cooperation with the Ingenieurbüro Schlimper, Augsburg and Sensys we combined a variety of geomagnetic and hydroacoustic techniques and employed different types of surveying devices. The northern part of the lake, which after a dry summer proved to be dryed out with mud instead of water at the surface, constituted the focus of the investigation.

2020-10-30, Martin Mainberger ; Keywords: WWII; B-17; Magnetometry; DPAA; Underwater Archaeology
Lippetal - Herzfeld: Aug 2020

Structure From Motion in a fluvial archaeological environment

On dry land, Structure From Motion (SFM) has been a well-established technique of archaeological documentation for some years now. In submerged sites it has remained to be exceptionable. The main reasons for that are restrictions resulting from poor visibilities or permanently changing subaquatic environments, as caused by currents.

The “Lippewrack” proved to be an example for such a complex task. The monument is positioned in 2,5m water depth. Photographing at visibility conditions of up to 1,5m was strongly handicapped by currents reaching values between 0,3 – 0,5m velocity. Problems occurred with the stabilizing of the camera as well as with objects floating into the scene during the documentation process. We needed four series of photo-shooting, summing up to 1135 singular pictures, to produce a 3D-model of the visible portions of the wreck. Due to problems of the software to match the pictures automatically, many photographs had to be added to the model manually. The result included a fully georeferenced orthophoto, plan and profiles.

Download 3d-model. (click; download; open pdf; (re-open pdf); click question mark; allow display of contents)

Read more about SFM-documentation of shipwrecks

Read more about SFM-documentation of complex settlement sites

2020-09-07, Martin Mainberger und Jonathan Witte; Keywords: Lippe - Schiffswrack - Structure From Motion - Unterwasserarchäologie - Underwater Archaeology
Lippetal - Herzfeld: Juli 2020

Ein mittelalterliches Flussschiff in der Lippe

2019 meldeten die TaucherInnen Luise Hauswirth und Peter Ferlemann, die in der Lippe bei Herzfeld ein gewässerbiologisches Monitoring für Arbeitsgemeinschaft Biologischer Umweltschutz im Kreis Soest durchführten, hölzerne Planken und Spanten an die zuständige Denkmalpflegebehörde in der Außenstelle Olpe des Landschaftsverbandes Westfalen-Lippe.


2020-07-28, Martin Mainberger; Keywords: Lippe - Schiffswrack - Mittelalter - Landesgeschichte Westfalen-Lippe
Westlicher Bodensee: Juli 2020

Geotextile Research

In cooperation with the Sächsisches Textilforschungsinstitut, the Landesamt für Denkmalpflege, Dienststelle Hemmenhofen, and the Kuratorium Pfahlbauten we took samples at different sites in the Western Lake Constace area. Some of the respective geotextiles are now almost four decades positioned under permanent water cover. They serve as protection layers for prehistoric culture layers and pile fields. The STFI aims to investigate functionality, degradation and potential impact to archaeological relics as well as to the natural environment..

2020-08-05, Martin Mainberger; Textile research - STFI - Underwater Archaeology - UNESCO World Heritage -
Scientific Diving: Spring 2020

Scientific Diving in Covid-19 Times

Covid 19 constitutes hitherto unknown threats to scientific diving teams. In a professional environment dependent on close physical cooperation of team members the disease afflicts working procedures and requires new safety precautions. Risk assessements need to be adapted accordingly, which is a difficult task with so many informations on the virus, many of them preliminary.

UwArc´s spring 2020 campaign adopts the general rules we use in every-day life and in other working environments. Hold distance to team members (and others) at all times! Wear face masks at all occasions you need to be close to each other! Disinfect / wash your hands! Keep all commonly used tools and equipment clean and disinfected! Be aware of your own body secretions, especially in the moist conditions of a tightly packed vessel and in case of emergency! Avoid unnessesary contacts, keep record of professional visits / visitors!

Recommendations of BG Bau
Handlungsempfehlung Nr. 21, Version 2 der Kommission Forschungstauchen Deutschland
Download "Selbsterklärung" for SD-Teammembers"

2020-05-02, Martin Mainberger; Keywords: Scientific Diving - Research Diving - Forschungstauchen - Covid-19 - Corona
Western Lake Constance: Spring 2020

Focusing on Protection Measures

The prehistoric lake shore sites in the shallow water sites of Lake Constance are seriosly threatened by erosion processes. From the middle of the 1980ies on the Landesamt für Denkmalpflege, Dienststelle Hemmenhofen created archaeological reservations to mitigate increasing damages and protect the sites for future generations. Archaeological monitoring of the 2020 spring campaign focused on the re-assessment of hydraulic engeneering measures like textile and gravel covers in the UNESCO Heritage sites Wangen-Hinterhorn, Litzelstetten-Krähenhorn and Sipplingen - Osthafen.

read also

2020-03-08, Martin Mainberger; Keywords: Underwater Archaeology - Lake shore sites - Lake Constance - Wangen - Sipplingen - Litzelstetten - protection measures
Langenargen: Autumn / Winter 2019

A newly discovered wooden Shipwreck near Schloss Montfort, Langenargen

When citicens of Langenargen / Lake Constance reported wooden timbers in the shallow water zone near Schloss Montfort, a former castle at the shores of Langenargen, Bodenseekreis, the Landesamt für Denkmalpflege, Dienststelle Hemmenhofen assigned UwArc to locate, identify and assess the potential archaeological site. Oaken frames and floor timbers, dimensions and details of the construction indicate clearly that we are dealing with the relics of a shipwreck from historical times. The shipweck is partly covered by lake sediments, but large portions are exposed and threatened by currents and waves.

Referring to a shipwreck investigated nearby: M. Mainberger, D. Hakelberg, Ein großes neuzeitliches Schiff vor Langenargen. Archäologische Ausgrabungen in Baden-Württemberg 2013, 322 - 325.

read also

2020-01-08, Martin Mainberger; Keywords: Underwater Archaeology - Shipwreck - Langenargen - Lake Constance
Insel Reichenau: Autumn 2019

New underwater archaeological Evidence to the UNESCO World Heritage Site

In the framework of a monitoring programme started by the a Landesamt für Denkmalpflege, Dienststelle Hemmenhofen UwArc documented wooden constructions in the shallow water zone near the Northern shore. At three different locations, all of them in close vicinity to the three medieval churches of Reichenau - Oberzell, Reichenau - Mittelzell and Reichenau - Niederzell long rows of oaken piles occur at the lake bottom. It remains open if the pile rows are only sections of a installation that originally lined the whole northern shore. Dendrochronological analysis will reveal the dating and the functional role of the medieval island with its famous monastery.

read also

2019-10-09, Martin Mainberger; Keywords: Reichenau Island - Underwater archaeology - monastery - medieval - UNESCO World Heritage site
Schwarzenbachtalsperre, Black Forest, Forbach: 2019

Recovery of scientific Devices from a Dam

When technical devices of a University of Constance, Limnological Institute, Environmental Physics working group proved to be hooked up at the bottom of the Schwarzenbachtalsperre UwArc, in cooperation with the cooperation partner VIB Schlimper GMBH carried out a search&recovery survey.

2019-10-09, Martin Mainberger; Keywords: ecology - limnology - hydrology - geophysics Scientific Diving - Hydrography - Side Scan Sonar
Lake Constance - Untersee: Summer 2019

Sampling of Makrophytes in the Framework of the Seewandel Project

In the framework of the Seewandel-Projekt and assigned by University of Hohenheim, Institute of Landscape and Plant Ecology UwArc sampled underwater vegetation in Lake Constance - Untersee.

2019-09-09, Martin Mainberger; Keywords: Untersee - Seewandel - macrophytes - satellite imagery - Scientific Diving
Lake Constance - Untersee: Spring 2019

Underwater archaeological Monitoring in a riverine Landscape

Assigned by the Landesamt für Denkmalpflege, Dienststelle Hemmenhofen, we executed monitoring works in the outlet of Lake Constance to the Upper Rhine. In the area for almost a decade underwater archaeological rescue excavations have been carried out. One of the tasks was to to win samples of sediment anomalies and assess the state of conservation in the "Orkopf" site. weiterlesen

2019.09.10 - Martin Mainberger
Lake Constance - Überlinger See: Spring 2019

Re-Assessment of the prehistoric Lake Shore Sites at Überlingersee, Lake Constance

2002 – 2004 the Landesamt für Denkmalpflege, Dienststelle Hemmenhofen, carried out an assessment of the underwater cultural heritage in the shallow water zones of Überlinger See. The underwater archaeological investigation yielded a variety of new discoveries and a wide range of conservation conditions. weiterlesen

2019-09-09, Martin Mainberger
Lake Constance - Bregenzer Bucht: 2019

Maintanance of technical Devices

Assigned and in close cooperation with University of Constance, Limnological Institute, Environmental Physics Group, UwArc supported the maintanance of technical devices with a Scientifc Diving Group.

2019-09-09, Martin Mainberger; Keywords: ecology - limnology - hydrology - geophysics - Scientific Diving
Reichenau: Spring / Summer 2019

First systematic assessment of the shallow water zone of Reichenau Island, Lake Constance

Reichenau Island is an outstanding example for the religious and cultural role of a large Benedictine monastery in the Medieval. It is part of UNESCO World Heritage since 2000. While the island itself has been subject to substantial historical and archaeological research, its lake shores and shallow water zones have hitherto remained more or less unknown. UwArc, assigned by the "Pile Dwellings Information Center" started now a first systematic asessment of the shallow water zones in the vicinity of the island. weiterlesen

2019-09-09, Martin Mainberger
Konstanz: 09/2017 – 03/2019

Gewässerkundliche Untersuchungen an „Steg Bodenseeforum“, Stadt Konstanz

Im Zusammenhang mit dem Neubau eines Anlegesteges für die Personenschifffahrt wurde eine ökologische und gewässerkundliche Untersuchung notwendig. UwArc führte im Auftrag der Stadt Konstanz, Amt für Stadtplanung und Umwelt das Monitoring der Gewässersohle durch.

09/2019, Martin Mainberger; Keywords: Limnologie – Ökologie – Erosion - Steg Bodenseeforum – Konstanz - Scientific Diving
Westallgäu: 2015-2018

BeLaVi Westallgäu – some archaeological Core Results

After completion of "BeLaVi" , a project of Landesamt für Denkmalpflege and co-funded by the German Science Foundation the archaeological knowledge on the Westallgäu region has radically changed. Our maps of the working area are now populated with 114 prehistoric sites. About 45% of them date to the Neolithic, indicating that the Westallgäu landscape was intensely used by Neolithic farming communities from the 5th millennium on. weiterlesen

09/2019, Martin Mainberger
Lago di Varese, Lombardia, Italy: 2012-2018

Consulting Underwater Archaeological Research and Monitoring at Isolino Virginia

Isolino Virginia is a small island near the western shore of Lago di Varese in Northern Italy. Recent research of the Museo Mirabello - Museo Civico Archeologico di Villa Mirabello, Comune di Varese, could show that the island is man-made. weiterlesen

03/2012, Martin Mainberger
Constance: Spring / Summer 2018

Primary underwater archaeological assessment Constance–Frauenpfahl

Having been assigned to archaeological monitoring works in Konstanz – Frauenpfahl from 2012 on, we now completed the primary assessment of the Late Bronze Age site. weiterlesen

9/2018, Martin Mainberger
Degersee: 04/2018

Sub-Bottom Profiler and SideScanSonar deployed at a Neolithic site at Degersee, Southern Germany

Hydroacoustic technology is a powerful tool for underwater archaeological research. It allows for the rapid, consistent, non-invasive assessment of large submerged areas, both surfaces and sediments, and is a source of hydrographic baseline data which is in many cases indispensable for the investigation of singular objects like shipwrecks as well as whole submerged landscapes. weiterlesen

2018, Martin Mainberger
Westallgäu: 2016

BeLaVi Westallgäu

Precisely dated, laminated lake sediments contain an amazing wealth of archaeological background data. If the palaeoenvironmental, palaeoeconomic and palaeoclimatic information they contain can be exactly synchronized to waterlogged archaeological evidence from lake shore sites, a dataset on human activities in landscapes far beyond the lake shores is generated. weiterlesen

2018, Martin Mainberger
Rhine River, Konstanz: Spring 2016

Scientific Diving in the Framework of the Remediation of a contaminated Site

Resulting of 19th and 20th century industrial installations some areas in the shallow water zone of the Seerhein at the City of Constance have ben polluted by industrial debris. Assigned by Arcadis Germany UwArc accompanied the remediation works with a diving team, carrying out documentation and sampling.

4/2016, Martin Mainberger; Keywords: Seerhein Konstanz - Altlastensanierung - Great Lakes - industrial debris - Scientific Diving
Starnbergersee, Bavaria: Spring / Summer 2015

Roseninsel Consultancy

Roseninsel Island at the Starnbergersee is one of three sites in Bavaria that were inscribed into the World Heritage Site list in 2011. The site is famous for its rich archaeological potential, dating back to Neolithic and Bronze Age periods. In the same time it is suffering badly from erosion processes. The Bayerisches Landesamt für Denkmalpflege has started with conservation measures. UwArc accompanies underwater archaeological works caried out by the Bayerische Gesellschaft für Unterwasserarchäologie e.V (BGFU). weiterlesen

2015, Martin Mainberger
Hurden, Lake Zurich, Switzerland: Spring 2015

Hydrographic Mapping at Hurden, Lake Zurich CH

Freienbach-Hurden Seefeld is one of the sites inscribed into the serial UNESCO World Heritage "Prehistoric pile dwellings arond the Alps" list in 2011. When the site was assessed in the framework of management plans developed by the Unterwasserarchäologie des Amtes für Städtebau der Stadt Zürich UwArc was assigned to carry out hydrographical works.

2015, Martin Mainberger; Keywords: Freienbach-Hurden Seefeld - lake shore settlements - pile dwellings - Hydrography - Underwater Archaeology - Unterwasserarchäologie; more reading: Mäder Andreas, Hofmann Hilmar, Hugenschmidt Johannes, Mainberger Martin, Wehrle Tim, Unesco - Kulturerbe im Kanton Schwyz - vom nachhaltigen Umgang mit der Pfahlbausiedlung "Freienbach-Hurden Seefeld". Mitteilungen des Historischen Vereins des Kantons Schwyz 108, 2016, 23 - 36.
Lake Burgäschi, Kanton Bern, Switzerland: November 2014

Hydrography and Diving Survey at Lake Burgäschi CH

In close cooperation with the BeLaVi Project Lead Partner, the University of Bern, Institut für Archäologische Wissenschaften UwArc carried out hydrographic works and a diving survey in the shallow water zone of Lake Burgäschisee, which is one of the Swiss sites listed in the serial UNESCO World Heritage "Prehistoric pile dwellings arond the Alps"

2014, Martin Mainberger; Keywords: Lake Burgäschi - lake shore settlements - pile dwellings - Hydrography - Underwater Archaeology - Unterwasserarchäologie
Reichenau: 2012

Long-term protection for a 16th century vessel, Island of Reichenau

Reichenau Island in Lake Constance, Southern Germany, is famous for its rich cultural heritage. The island is UNESCO World Heritage Site since 2001. At all times, watercraft played an essential role in the religious, cultural, economic, and social life of the island. Archaeological remains of boats and ships are therefore important sources to the island´s history. weiterlesen

09/2012, Martin Mainberger
Konstanz: 2012

Zu den ältesten Wurzeln der Bodenseemetropole: Pfahlbaudörfer im See vor Konstanz

Die ersten Nachrichten über Pfahlbauten in Konstanz datieren noch aus der Zeit des „Pfahlbaufiebers“ in der zweiten Hälfte des 18. Jahrhunderts. Der Konstanzer Apotheker Ludwig Leiner und später Major Ernst v. Tröltsch berichten über Entdeckungen in Konstanz-Rauenegg – im heutigen Klein-Venedig – ,am „Inselhotel“, am sogenannten „Frauenpfahl“, also vor der heutigen Konstanzer Hafeneinfahrt, und in Hinterhausen am Petershauser Seeufer. weiterlesen

04/2012, Martin Mainberger
Reichenau: 2011

Reburial of a medieval vessel in the shallow water zone of Reichenau Island (2011)

We know about two dozen shipwrecks of historical times that are preserved in the sediments of Lake Constance. Only few of them have been systematically investigated by archaeologists. Some of the so far known vessels are under threat by erosion, others suffer from damages caused by badly trained recreational divers. All of them are worth preserving for future researches. weiterlesen

2011, Martin Mainberger
Degersee: 2009

DFG-Projekt "Degersee"

Der Degersee ist ein kleines Gewässer unweit Kressbronn am Bodensee. In der Wissenschaft ist der See bereits in den 1960er Jahren wegen seiner bis an das Ende der letzten Eiszeit zurückreichenden Sedimentabfolgen bekannt geworden. weiterlesen

09/2009, Martin Mainberger
Xanten: 2009

Ein römisches Legionslager im Baggersee

Im Bereich eines Baggersees auf der „Bislicher Insel“ bei Xanten wurden Ende der 1950er Jahre bei Baggerarbeiten Funde römischer Zeitstellung gemacht. Durch Taucher konnte damals bestätigt werden, dass sich am Grund des Baggersees noch Baureste befanden. Seither gilt die Fundstelle als möglicher Standort des römischen Legionslagers "Vetera II". weiterlesen

03/2009, Martin Mainberger
Rheinfelden-Beuggen: 2008

Unterwasserarchäologische Untersuchungen im Hochrhein bei Schloss Beuggen

Schloss Beuggen liegt unweit der Ortschaft Rheinfelden - Karsau, etwa 20km östlich des Rheinknies bei Basel. Die Anlage wurde im 13. Jahrhundert vom Deutschen Ritterorden errichtet und im 18. Jahrhundert barock umgestaltet. Nach der Säkularisierung Anfang des 19. Jahrhunderts diente das Anwesen als Lazarett und als Kinderheim. Heute werden große Teile des Anwesens als evangelische Tagungs- und Begegnungsstätte genutzt.weiterlesen

08/2008, Martin Mainberger
Öhningen: 2007-2008

Untersuchungen am Orkopf

Der Orkopf ist eine Untiefe in der Nähe der "Stiegener Enge" am Ausfluss des Seerheins im Untersee. Der Bodensee verengt sich hier zu einem unübersichtlichen System aus Rinnen, Seekreide- und Kiesbänken, Strömungen und Widerwassern. Luftbilder und Tauchbeobachtungen zeigen, dass es im Bereich der Untiefe Pfählungen gibt. weiterlesen

04/2008, Martin Mainberger
Überlinger See: 2008

Archäologische und naturwissenschaftliche Untersuchungen am "Krähenhorn" bei Litzelstetten, (Stadt Konstanz)

1.1.2008 starteten insgesamt 6 Einrichtungen aus dem Land Baden-Württemberg, dem Land Vorarlberg AUS, dem Kanton Thurgau CH und der Stadt und des Kantons Zürich CH Voruntersuchungen zu einem gemeinsamen Projekt mit dem Titel "Ufererosion und Denkmalschutz am Bodensee und Zürichsee" UED).weiterlesen

03/2008, Martin Mainberger
Stade: 2008

Unterwasserarchäologische Untersuchung an einem Schiffswrack in der Elbe bei Stade

Anlässlich einer geplanten Baumaßnahme wurden in der Elbe im Lauf des Jahres 2007 Peilfahrten mit Fächerecholot durchgeführt. Hierbei wurde in Bützfleth bei Stade ein etwa 13m langes und 3m breites Schiffswrack entdeckt.weiterlesen

2008, Martin Mainberger
Bremerhaven: 2005/2006

Gutachten zu Unterwasserkulturgütern im Weserästuar

Im Auftrag des Wasser- und Schiffahrtsamtes Bremerhaven (Planungsgruppe Weseranpassung) und im Rahmen einer Umweltverträglichkeitsuntersuchung (UVU) erarbeiteten wir 2005 / 2006 ein Gutachten zu Unterwasserkulturgütern im Weserästuar. Die Untersuchung umfasste vor allem die Beurteilung bekannter Fundstellen im Unter- und Außenwesergebiet, beinhaltete aber auch eigene Geländeuntersuchungen.weiterlesen

11/2006, Martin Mainberger
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