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Indian Brook Stream Geomorphic Assesment Phase I Protocol

Indian Brook Stream Geomorphic Assesment Phase I Protocol. Essex and Colchester, Vermont Danica Lefever April 29, 2005. Malletts Bay. Colchester. Essex. Watershed Overview. Essex Junction. 6.3% impervious cover 30.6 sq. km.

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Indian Brook Stream Geomorphic Assesment Phase I Protocol

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  1. Indian BrookStream Geomorphic AssesmentPhase I Protocol Essex and Colchester, Vermont Danica Lefever April 29, 2005

  2. Malletts Bay Colchester Essex Watershed Overview Essex Junction

  3. 6.3% impervious cover • 30.6 sq. km. • Approximately half of total watershed designated as impaired Essex Jct. between Educational Dr. and Rt. 15 Essex – Upstream of Susie Wilson Rd.

  4. Impaired portion of watershed Essex Landfill Impaired portion http://www.anr.state.vt.us/dec/waterq/stormwater/images/sw_indianmap.gif

  5. Colchester Stormwater Sewers • Very minimal stormwater outfall impacts in Colchester • Relatively wide buffer in Reaches 1-6

  6. Essex and Essex Junction Stormwater Sewer Lines Lang Farms Golf Course New Condos

  7. Reference ConditionsStep 2 Indian Brook Reservoir

  8. Reach 2 Reach 1

  9. Reach 3

  10. Landcover/LanduseStep 4 Not anymore! Indian Brook Reservoir Hmmmm?

  11. Indian Brook Park • LU 17 – Outdoor and other urban and built-up land • SGAT classified it as Urban

  12. Reaches 13 and 14 • Hard to classify from the aerials • Reaches 16 and 17 • Very easy to see they aren’t urban

  13. Impoundment • Mill Pond Road • Indian Brook Reservoir

  14. Essex Junction Straightening RIT

  15. Bank Armoring • Broad Valley • Near Bike Path bridge • Steep bank • Between two culverts • Behind Essex High School Reach 11 Reach 3

  16. Summary Conditions • Phase 1 • Aerials • LC/LU • RIT • Age of data • Impacted Reaches • Partly impaired • Usefulness of Phase I data • Reach 11 Reach 2

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