Flood Protection System for Infrastructures: Methodology and Instrumentation TestingÂ-Video

Video Transcription

Video Summary

The presentation describes a flood-protection project at New York City Transit’s Hamels Y substation in Far Rockaway, initiated after Hurricane Sandy flooded transit infrastructure. The project installed a 1,200-foot perimeter barrier of concrete and sheet-pile walls with floodgates, alongside micropiles, jet grouting, and extensions to existing walls. Geotechnical investigations identified variable sandy soils, groundwater, and challenging site access. Because sheet-pile installation could affect nearby tracks and buildings, engineers conducted test installations and monitored movement and vibration. Measurements remained well below established limits, confirming the installation method was suitable. The project demonstrates how site-specific design, testing, monitoring, and coordination support transit-system resilience.

Keywords

Hurricane Sandy

flood protection

transit infrastructure

sheet-pile walls

geotechnical investigation