Case study

Fig 13. The bridge at Yanweizhou park (Turenscape, 2014)

YANWEIZHOU PARK BY TURENSCAPE

Jinhua City, Zhejiang Province, China

Fig 14. Topography and terrain strategy (Turenscape, 2014) It is one of the most famous case studies of Sponge City, where the flood mitigation strategy has given a new identity to the city, using a functional landscape as a poetic symbol. The bridge and paths connect the city with nature and connect the past to the future; the river currents, the flow of people, and the gravity of objects are all woven together to form a dynamic concord.

KEY LESSONS AND PRINCIPLES

• Adaptive Tactics to Preserve and Enhance the Remnant Habitats: The biodiversity of the area was adapted and enhanced through the addition of native wetland species.

• Cut-and-fill strategy to balance earthwork and by creating a water-resilient terraced river embankment that is covered with flood adapted native vegetation. Floodable pedestrian paths and pavilions are integrated with the planting terraces, which will be closed to the public during the short period of flooding.

• An elevated bridge above the 200-year flood level, while the ramps connecting the riparian wetland park can be submerged during the 20-year and larger floods. Floodwaters cover the park for a very short period of time. The bridge also hovers above the preserved patch of riparian wetland and allows visitors an intimate connection to nature within the city.

Fig 15. The park during flooding (Turenscape, 2014)

APPLICATION TO THE SITE

Experimental testing model to see how the proposed sponge park would react when water level rises.