Stormwater boxes aspects on verification, simulation and installation In the VINNOVA financed project “Grey-green system solutions for sustainable cities” a holistic approach is applied related to the challenges following as consequences of urbanization and expected climate changes. Solutions taking into account the interaction between green surfaces and grey surfaces are studied. The growing p...

Complaints about stream and sewer flooding have been increasing. Many departments need to do accurate stormwater calculations but have lacked affordable and useful software tools. Hydrologists and engineers usually calculate stormwater data for watersheds (i.e., drainage areas); the majority of a local government’s work is based on individual parcels and addresses. Quantifying stormwater in a f...

Humans have exerted large-scale changes on the terrestrial biosphere, primarily through agriculture; however, the impacts of such changes on the hydrologic cycle are poorly understood. The purpose of this study was to test the hypothesis that the conversion of natural rangeland ecosystems to agricultural ecosystems impacts the subsurface portion of the hydrologic cycle by changing groundwater r...

The traditional management of stormwater with a singular focus on flood protection has resulted in the degradation of receiving waters. The health of urban streams is degraded by a suite of stressors, notably, the frequent disturbance due to stormwater runoff. We investigate the catchment scale implications of allotment scale rainwater harvesting, in terms of potential simultaneous benefits for...

Clogging of permeable interlocking concrete pavements (PICP) due to the sediment contained in stormwater runoff has been shown to significantly reduce their infiltration capacity over time. Numerous studies have used laboratory-based PICP models and synthetic stormwater in an attempt to replicate and predict the clogging processes that occur in PICP field installations. A variety of sediment ty...

seattle has been working at green infrastructure for over a decade, and its commitment over many years has resulted in a serious overall program. the city does not yet have a comprehensive citywide green infrastructure plan; its Comprehensive drainage plan is generally supportive of green infrastructure (which it dubs “natural drainage strategies”), but does not spell out an overall vision of i...

Groundwater recharge with reclaimed municipal wastewater presents a wide spectrum of technical and health challenges that must be carefully evaluated prior to undertaking a project. This review will provide a discussion of groundwater recharge and its management with special reference to health and regulatory aspects of groundwater recharge with reclaimed municipal wastewater. At present, some ...

1. Urban drainage systems fal into two categories: “separated” systems where stormwater and sewage is reticulated in separate reticulation systems; and “combined” systems where the same pipes are used for both. The report deals exclusively with the urban litter problems associated with the stormwater conduits and streams in a country where the stormwater and sewage are always (theoretically at ...