Flood Risk Assessment, Hampton Roads Sanitation District (HRSD)

Blackwater, Nottoway and Meherrin Rivers

Developed flood risk assessments at waterway crossings throughout the HRSD, including H/H information based on GIS compilations, state and local agency mapping, historic data and field data. Parameters were combined to create a digital files supporting development of base H/H models throughout the area. Work maps were based on predetermined storm conditions and will help develop a strategy to predict areas where bridge closures or emergency considerations may be necessary during major storm events.