The development agency responsible for the Western area of Tsukuba around station number 19 of the TX, Kenkyugakuen or Katsuragi, has a very interesting name. There is in fact nothing renaissance about the agency, and the project only becomes urban after development. However, the speed of development is impressive, considering eight different sites along the TX were developed in total. The entire project at Tsukuba was scheduled to house 25,000 people and run from 2000 to 2018, but already 70% of the development is completed.
Due to the presence of the Hasunuma river, a tributary of Yada river that flows into Ushiku lake in the South, a number of measures were taken for flood management. These included 2 regulating ponds (permanently filled with water, in the West) and 3 retarding basins (only temporarily filled with water, in the East). The retarding basins have special inlets as well as outlets, which can be seen on the photos. The new housing areas have separate rainwater sewerage, and the houses have gutters connected to this system. Parks and parking spaces have permeable areas also connected to this sewerage. It was nice to see these systems so close to home.
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