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Placer County Water Agency Middle Fork American River Project

TERR 4: Special-Status Wildlife Preliminary Results Powerline Risk Assessment Component. Placer County Water Agency Middle Fork American River Project. Terrestrial Working Group November 6, 2007. Study Objective.

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Placer County Water Agency Middle Fork American River Project

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  1. TERR 4: Special-Status Wildlife Preliminary Results Powerline Risk Assessment Component Placer County Water AgencyMiddle Fork American River Project Terrestrial Working GroupNovember 6, 2007

  2. Study Objective • Determine whether Project communication lines and powerlines are consistent with Avian Power Line Interaction Committee (APLIC) Guidelines APLIC GUIDELINES Powerpole configurations and avian deterrent recommendations

  3. All Project powerlines and communication lines (excludes underground powerlines) Extent of Study Area Does not include PG&E transmission lines

  4. Powerline Risk AssessmentStudy Methods Overview Pole Evaluation • Conduct preliminary powerline and communication pole and line evaluation Habitat Assessment • Determine location of powerlines in relation to appropriate habitat • Determine availability of nesting or roosting trees or perches • Document avian use of powerlines • Summarize documented avian electrocutions

  5. Powerline Risk AssessmentPole Evaluation Typical APLIC “problem” powerline characteristics: • Usually distribution lines • Distance between conductors is less than wingspan of landing/perching bird • Grounded hardware or equipment in proximity to energized conductors/jumper wires

  6. Typical APLIC “Problem” Powerline Configurations

  7. APLIC Recommended Powerline Configurations

  8. Typical APLIC “Problem” Equipment Pole Configuration

  9. APLIC Recommended Equipment Pole Configuration

  10. MFP Photovoltaic Pole and Powerline Evaluation • Low voltage • Insulated • Do not pose risk of electrocution

  11. MFP Communication Poleand Line Evaluation • Low voltage • Insulated • Do not pose risk of electrocution

  12. MFP Pole and Powerline Evaluation • Powerline pole configuration may pose potential risk

  13. MFP Habitat Assessment • Abundant alternative natural structures for nesting and foraging • Powerlines are surrounded by appropriate habitat (e.g., hardwood and coniferous forest) • No avian use detected during surveys • No reported avian electrocutions or other mortalities

  14. Next Steps

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