NYCHA Flood Mitigation Projects

Langan has provided engineering and surveying services related to the analysis and design of flood protection measures for about a dozen housing developments operated by the New York City Housing Authority (NYCHA). Our services have generally included:

• Assessment of sea level rise and determination of project specific design flood elevation
• Estimation of flood loads for design
• Evaluation of potential methods for flood protection
• Seepage analysis for selected flood protection measures
• Evaluation of slope stability and design of slope stabilization measures
• Design of below-grade cutoff walls
• Design of foundations to support flood walls and barriers
• Design of areas of rescue outside building entrances