Due to the very heavy rainfalls in July and August 2011 in Rostock/ Markgrafenheide (more than 300 % of the average rainfall in this period) the start of the DredgDikes test dike construction was delayed by 2 weeks. After two weeks of construction the weather became very unstable again and there is no stable weather in sight. For a number of reasons, especially because both the subgrade and the dredged materials are still too wet to build a high quality research dike, the construction has been postponed to spring 2012. The dams constructed so far will be instrumented and examined to gain first results.