Duluth Watersheds Miller Chester Tischer Amity. Aerial Photos.

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Presentation transcript:

Duluth Watersheds Miller Chester Tischer Amity

Aerial Photos

Impervious Surfaces

Relationship Between % Imperviousness and Water Quality ADAPTED FROM SCHUELER, ET. AL., 1992 STREAM DEGRADATION WATERSHED IMPERVIOUSNESS (%) DEGRADED PROTECTED IMPACTED Impervious Surface is a Strong Indicator of Water Quality

Current Impervious Surfaces by Watershed

Land Use/Cover

NEMO Classes Red – Urban areas, roads and railroads Yellow – Farmsteads and rural developments Green – Forested areas Brown – Grasslands, agricultural, bare rock, gravel pits, regeneration forest Blue – Open water, wetlands

Zoning Boundaries

City of Duluth Land Use/Cover combined with zoning boundaries

Removal of Steep Slopes

Removal of Steep Slopes and Wet areas

Removal of Steep Slopes, Wet areas, and current Impervious areas

Build-out Impervious Surfaces