Public Comment Period Opens
TVA has released its draft Environmental Assessment (EA) which reviews the potential environmental effects of the construction activities proposed to remediate seepage at Boone Dam as well as the associated drawdown of the reservoir. The environmental review of the proposed fix to the dam is necessary to comply with the National Environmental Policy Act (NEPA) and is a helpful process by which TVA can identify, avoid and mitigate potential environmental effects of the proposed project.
The draft EA analyzes the effects of our proposal to fix the dam by building a composite seepage barrier from the crest of the dam’s earthen embankment into the foundation soils and bedrock. The barrier would consist of an injected grout curtain and an excavated and filled concrete diaphragm wall. As part of the proposal, TVA would use lands managed by us near the dam for construction support activities and would continue the reservoir drawdown through construction. The remediation could take between five and seven years.