Reservoirs are notoriously tricky to maintain: from the surrounding area plenty of sand and silt is brought in by the river and the material deposits at the dam. As reservoirs are usually rather deep, dredging can be quite a challenge. For the Tablachaca dam in Peru another challenge was added; the location high up in the Andes required a modular dredger due to transport restrictions. The DOP Dredger proved to be the perfect solution, according to its builder. The various components of the modular DOP Dredger are limited in size to ensure all could be transported by road.