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San Leandro Creek Hazardous Tree Removal Project

San Leandro Creek Hazardous Tree Removal Project. Project Purpose. 1998 “El Nino” knocked down over 200 hazardous trees. Over 400 hazardous trees identified in San Leandro Creek. Over 30 reports of property damage since 1999. San Leandro Creek Hazardous Tree Removal Project. The Project.

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San Leandro Creek Hazardous Tree Removal Project

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  1. San Leandro Creek Hazardous Tree Removal Project Project Purpose 1998 “El Nino” knocked down over 200 hazardous trees Over 400 hazardous trees identified in San Leandro Creek Over 30 reports of property damage since 1999

  2. San Leandro Creek Hazardous Tree Removal Project The Project Removing 42 Hazardous trees from District owned properties Preserving over 60 mature native trees within project limits Planting 350+ native plants

  3. San Leandro Creek Hazardous Tree Removal Project Project Locations Trees are being removed from District owned properties only Three Locations: 10 trees at Huff Ave. 11 trees at Cary Dr. 22 trees at St Mary Ave.

  4. San Leandro Creek Hazardous Tree Removal Project Project Schedule Construction will begin in early August Trees will be removed by the end of September or early October Restoration will occur at the beginning of the wet season

  5. San Leandro Creek Hazardous Tree Removal Project Questions and Answers

  6. Location San Leandro Creek Hazardous Tree Removal Project Project Locations on District Owned Property District Owned Property

  7. San Leandro Creek Hazardous Tree Removal Project Environmental Considerations • CEQA Compliance - Categorically Exempt

  8. IP San Leandro Creek Hazardous Tree Removal Project Invasive Plants Native Oaks struggle to survive under the canopy of the invasive non-native Blue Gums.

  9. San Leandro Creek Hazardous Tree Removal Project Invasive Plants Native Oaks thrive in the absence of invasive Blue Gum

  10. San Leandro Creek Hazardous Tree Removal Project Improper Tree Removals • No Water Quality Control Measures • No Preservation of Existing Native Species • No Enhancement of Riparian Corridor

  11. San Leandro Creek Hazardous Tree Removal Project Tree Evaluation Characteristics • Species • Indigenous • Diameter Class • Number of Trunk • Height Class • Condition Rating • Crown Class • Position in the Slope • Slope Aspect • Vines on Trunk • Indigenous Saplings • Failure Potential • Target

  12. San Leandro Creek Hazardous Tree Removal Project Failure Potential Criteria • Tree Structural Characteristics • Presence of Decay/Defect • Weight Distribution in the Crown • Lean • Previous Failures within the Tree • Whole Tree Failure Nearby • Exposure to Wind • Steepness of Slope

  13. San Leandro Creek Hazardous Tree Removal Project Site 1 – Huff Ave

  14. San Leandro Creek Hazardous Tree Removal Project Site 2 – Cary Ave

  15. San Leandro Creek Hazardous Tree Removal Project Site 3 – St. Marys Ave

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