Zelazny Most Tailings Dam, Poland

Situated alongside on of the world’s largest copper mines this huge structure is about 63m high and has a circumference of about 14km at the crest. The dam was built in a region where glacial activity caused significant shearing in the underlying clay deposits. Construction of the dam has re-activated movements along these shear planes, many of which are more than 100m below the toe of the dam.

In October 2015 Geotechnical Observations accompanied by Measurand and local contractor Budokop installed a 150m SAA into an existing inclinometer casing where shearing is ongoing.