Archived
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Location
Lexington, Kentucky
Start Date
6-5-2026 9:00 AM
End Date
6-5-2026 9:30 AM
Description
This presentation will examine the engineering challenges and lessons learned associated with construction impacts and altered stormwater flow paths in the vicinity of a Sediment Pond adjacent to a newly constructed landfill. During construction activities, the sediment basin liner experienced multiple instances of flotation. Early corrective measures were implemented as quick fixes; however, these proved ineffective and ultimately necessitated more comprehensive solutions once the underlying causes were better understood. The presentation will begin with an analysis of the initial liner flotation events, focusing on the conditions that led to the problem, the immediate responses, and the eventual engineered solution. It will also highlight the indicators of underlying issues that, if recognized earlier, could have facilitated a deeper understanding of site conditions and prevented subsequent complications. The discussion will then move into later basin impacts, including the large-scale challenges posed by changing groundwater flow paths and altered surface water collection systems. Regulatory involvement will be reviewed, with attention given to agency oversight, investigations, and mitigation measures undertaken to address concerns related to the nearby landfill. Implemented solutions that successfully alleviated the liner flotation and drainage issues will be presented, along with an assessment of the project-wide impacts resulting from these interventions. Finally, the presentation will convey the lessons learned throughout the process, emphasizing the importance of proactive site assessment, recognition of hydrological changes during construction, and early engagement with regulatory agencies. BMPs will be identified to guide future projects, with particular focus on comprehensive evaluation of stormwater and groundwater flow paths, adaptive design strategies to accommodate evolving site conditions, and robust hydrological monitoring.
Document Type
Presentation
Archival?
Archival
Included in
Energy Systems Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Mining Engineering Commons, Oil, Gas, and Energy Commons, Structural Materials Commons, Sustainability Commons
Identifying and Controlling Landfill Construction Impacts to Stormwater Flow Paths
Lexington, Kentucky
This presentation will examine the engineering challenges and lessons learned associated with construction impacts and altered stormwater flow paths in the vicinity of a Sediment Pond adjacent to a newly constructed landfill. During construction activities, the sediment basin liner experienced multiple instances of flotation. Early corrective measures were implemented as quick fixes; however, these proved ineffective and ultimately necessitated more comprehensive solutions once the underlying causes were better understood. The presentation will begin with an analysis of the initial liner flotation events, focusing on the conditions that led to the problem, the immediate responses, and the eventual engineered solution. It will also highlight the indicators of underlying issues that, if recognized earlier, could have facilitated a deeper understanding of site conditions and prevented subsequent complications. The discussion will then move into later basin impacts, including the large-scale challenges posed by changing groundwater flow paths and altered surface water collection systems. Regulatory involvement will be reviewed, with attention given to agency oversight, investigations, and mitigation measures undertaken to address concerns related to the nearby landfill. Implemented solutions that successfully alleviated the liner flotation and drainage issues will be presented, along with an assessment of the project-wide impacts resulting from these interventions. Finally, the presentation will convey the lessons learned throughout the process, emphasizing the importance of proactive site assessment, recognition of hydrological changes during construction, and early engagement with regulatory agencies. BMPs will be identified to guide future projects, with particular focus on comprehensive evaluation of stormwater and groundwater flow paths, adaptive design strategies to accommodate evolving site conditions, and robust hydrological monitoring.
