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Duluth Watersheds

Duluth Watersheds. Amity. Tischer. Chester. Miller. Aerial Photos. Impervious Surfaces. Impervious Surface is a Strong Indicator of Water Quality. Relationship Between % Imperviousness and Water Quality. 80 70 60 50 40 30 20 10 0. WATERSHED IMPERVIOUSNESS (%). DEGRADED.

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Duluth Watersheds

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  1. Duluth Watersheds Amity Tischer Chester Miller

  2. Aerial Photos

  3. Impervious Surfaces

  4. Impervious Surface is a Strong Indicator of Water Quality Relationship Between % Imperviousness and Water Quality 80 70 60 50 40 30 20 10 0 WATERSHED IMPERVIOUSNESS (%) DEGRADED IMPACTED PROTECTED STREAM DEGRADATION ADAPTED FROM SCHUELER, ET. AL., 1992

  5. Current Impervious Surfaces by Watershed

  6. Land Use/Cover

  7. 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

  8. Zoning Boundaries

  9. City of Duluth Land Use/Covercombined with zoning boundaries

  10. Removal of Steep Slopes

  11. Removal of Steep Slopes and Wet areas

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

  13. Build-out Impervious Surfaces

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