Regional Flood Frequency
Analysis for Newfoundland and Labrador (2014)
The annual cost of flooding to public property in Newfoundland and
Labrador is estimated to be in the millions of dollars range.
Accurate flood flow estimates are needed for the efficient design of
instream structures (culverts, bridges, spillways, etc.) and for
floodplain management. The locations for which flood flow estimates
are required usually do not have streamflow data which could be used
to directly estimate the flood flows. This study, like four previous
studies (1971, 1984, 1990, 1999), derives a set of equations for
estimating return period flood flows in ungauged watersheds. The
2014 study is the first to provide equations for Labrador.