Improving Stormwater Runoff Modeling in Washington

abstract background image with blue overlay

Challenge

In Snohomish County, Washington, engineers were using a time-consuming, imprecise method for developing hydrologic models, which aid in understanding and managing water resources. On top of that, they’re basing their work off 30-meter land cover data which is very coarse. They needed better data and technology.

Solution

County officials used high-resolution land cover data (1-meter resolution) from the Digital Coast to develop a tool, and ultimately a method, for creating hydrologic models, which has proven to be more efficient, consistent, and reproducible. This means county officials can more easily determine local stream flow and any drainage issues in the county.

img-infographic
img-infographic
Snohomish County land use map derived from NOAA C-CAP land cover data