Reducing Urban Flood Risk in Canada Through Code Interpretation (PAP014311)

Código

PAP014311

Autores

Dan Sandink

Tema

Urban Floods

Resumo

While it has been previously reported that resolution of building code enforcement issues may result in reduced vulnerability to extreme natural events, issues surrounding code interpretation have not previously been studied. Among other topics, this study investigated interpretation of code wordings that relate to installation of backwater valves to protect homes from sewer backup?a significant cause of basement flooding associated with extreme precipitation events and urban flooding in Canada. Despite consistent application of code wordings related to backwater valves across the regions of Canada represented in this study, it was found that there are differing interpretations of code wordings, which resulted in differing reported frequencies of installation of backwater valves on both sanitary/combined and storm sewer service connections.