Example of Construction of an Urban Dam at the AIGAWA DAM

Abstract

The Aigawa Dam is located near the urban area. We devised a construction method for the dam so as not to affect the surrounding environment. In a typical rockfill dam, a quarry site is developed near the dam body and materials are procured locally. Large-scale structures such as intake facilities and outlets are basically constructed by placing concrete at the construction site. However, in the Aigawa Dam construction project, the structures are constructed using precast blocks, without having a quarry site or an aggregate plant. I will report on construction examples of urban dams, which are rare in Japan.