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Bear Creek Stream Flow and Rainfall Monitoring Stations

Rainfall in the Bear Creek study areais generally more (45 inches) than what is observed at Sea-Tac Airport (38 inches).

.0 0.5 1 1.5 20.25

Miles

LegendGaugesActive

Rainfall

Stream Flow

GaugesInactive!( Rainfall") Stream Flow

Study Areaopen waterStreams

Stream flows from urban basins fluctuate more and have higher peaks than from drainage areas that are less impacted.

Sea-Tac Airport Historical Rainfall&

Rainfall from Oct 2015 - Sep 2016

Flow rates are compared between a highly urban area and a mixed use of

pasture, residential, and forest.