Project Experience

Drop Shafts

Combined Sewer Overflow and Riverfront Development Project

Combined Sewer Overflow and Riverfront Development Project

Center and Morgan Boulevard. The design-build project also included two parking garages, access roads, and Project Manager for the geotechnical investigations for an approximately seven-mile-long, large (up to 90-inch) diameter combined sewer overflow pipeline along...

Northeast Boundary Tunnel

Northeast Boundary Tunnel

Emad Iskander, Ph.D., PE performed the design review of slurry wall shafts, Sequential Excavation Method (SEM) adits connecting to the tunnel, and support of excavation for near-surface structures. The century-old combined sewer system in the District of Columbia was...