Greenhorne & O’Mara was awarded a five-year, multi-million dollar contract by North Carolina’s Division of Emergency Management to continue to support a statewide elevation data and floodplain mapping program. The firm is providing light detection and ranging (LiDAR) terrain data collection, photogrammetric services, water resources engineering, digital mapping, IT infrastructure, and database services.
Mecklenburg County, N.C., Storm Water Services selected Watershed Concepts, a division of Hayes, Seay, Mattern & Mattern, Inc., to provide floodplain management and flood mitigation services in cooperation with the National Flood Insurance Program. The firm’s services will include management, review, updates, and support for the county’s flood hazard mapping program and associated flood hazard maps.
The city of Aurora, Ill., selected RJN Group, Inc., to assist in plans to de-combine three basins of the city’s stormwater and sanitary sewer infrastructure. The firm will conduct field and underground investigations, develop hydraulic computer models, and determine the most cost-effective solutions for the combined sewer overflow issues.