1. Landfill Installation Considerations: Wind Turbines Presented By: Gary Garfield, PE, LSP URS Corporation Salem, New Hampshire Renewable Energy @ Closed Landfills

2. Foundation Types Spread Footings Rock Socketed and Short Piers

3. Foundation types Rock Anchor and Cap Pile and Cap

4. Foundation Variables Landfill Thickness Foundation Materials Lateral Support Settlement Slope Stability

5. Turbine Types Small Wind 10kW Commercial Power > 1 MW

6. Landfill Thickness Fall River Landfill 200+ feet Hull Landfill 60 feet Pittsfield Landfill 12 to 40 feet

7. Foundation Materials Bedrock Glacial Till Gravel Sand Clay Peat / Organics Municipal Solid Waste

8. Settlement Function of Loading –10 kW Tower & Turbine ~ 3 tons –100 kW Tower & Turbine ~ 22 tons –1.8 MW Tower & Turbine ~ 400 tons Function of waste type

9. Lateral Support

10. Stability Shear Strength Slope Stability Overturning Moments Bearing Capacity

11. Other Important Aspects Leachate Collection Systems Landfill Liners Avian Control LFG Collection Systems

12. Thank You