A Female-Owned, GDOT Certified Disadvantaged Business Enterprise (DBE)

Infrastructure Projects

SEI is a recognized leader in water and wastewater distribution system design. Whether we are designing elevated water tanks to provide drinking water and fire protection to rural areas or planning and designing regional waste water pumping stations within urban areas, we excel in innovative, efficient and cost effective design. SEI offers full service solutions to the most challenging municipal infrastructure needs. SEI has completed miles of infiltration/inflow reduction and associated rehabilitation of sanitary sewer projects throughout the Atlanta area.

Stormwater: SEI offers extensive experience with complex watershed modeling, drainage basin master planning, hydraulic analysis and modeling, stormwater management facility, canal and channel design. SEI’s Stormwater Group has dedicated drainage modeling software and hardware incorporating the most advanced tools for watershed/drainage analysis. Combined with LIDAR technology and GIS topographic information, SEI develops high-resolution images to develop accurate watershed maps and plans.

Transportation: Transportation systems have an immense impact on everyday life. With the full support of SEI’s complement of multidiscipline services, SEI’s Transportation Group systematically produces safe, cost-effective and timely solutions to state and local transportation needs. From grant writing to concept and through construction, SEI provides the planning, surveying, environmental engineering and construction management for numerous transportation projects. SEI has over 20 years experience working with Federal, GDOT, SCDOT, NCDOT, transit authorities, as well as countless local counties and cities to implement their short and long transportation needs.