Bergen Norway, sustainable watermanagement Bryggen BMP

proeftuin Fieldlabs

Created at: 22 Nov 2014


The shallow subsurface in historic cities often contains extensive archaeological remains, also known as cultural deposits. Preservation conditions for naturally degradable archaeological remains are strongly dependent on the presence or absence of groundwater. One of the main goals at such heritage sites is to establish a stable hydrological environment. Green infrastructural solutions such as Sustainable Urban Drainage Systems (SUDS) can support preservation of cultural deposits. Several cases show that implementation of SUDS can be cost effective at preservation of cultural deposits.

Treatment Train Bryggen consist of a rainwatergarden, a swale and permeable pavement

The swale is part of the historical World Heritage Site: Bryggen in Bergen, on the west coast of Norway. The average annual rainfall in Bergen is 2,250 mm/y and annual mean temperature of 7.6 �C, varying from 1.3 to 14.3 �C. Dry swales in this area are predominately used increase the groundwater level and humidity in the top soil cost-effectively to avoid oxygenation and loss of highly organic cultural deposits in the subsurface. The study swales consist of two grassed areas positioned side by side. Each swale is approximately 20 m long, 6 m wide and has an average slope of 1:2. The swales are primary installed to capture and treat stormwater runoff from upstream roofs and roadway

Samenvatting (Dutch description)

Bergen Norway, sustainable watermanagement Bryggen

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