Delaware's flat, low-lying coastal plain gives the state almost no rocky terrain, which means its geohazard profile looks very different from most of its neighbors. Delaware Bay's shoreline and the state's sandy soils are highly vulnerable to erosion and flooding, and soft coastal plain sediments beneath infrastructure can settle unevenly over time, producing a risk profile dominated by water and soft ground rather than rock or steep slopes.
This fits the broader pattern of Seepage and Internal Erosion Problems issues GSI sees repeated across DelDOT's network.
erosion control, ground settlement, retaining systems define Delaware's geohazard exposure, and GSI's response to each reflects the state's real conditions.
This stems from Delaware Bay and Atlantic Coast shoreline erosion in Delaware. GSI's fix is coastal and bluff stabilization.
soft coastal plain sediment is the driver here. GSI addresses it in Delaware through underpinning and foundation support.
Driven by limited rocky terrain for conventional earth retention, this shows up across Delaware. GSI's response is tiebacks.
Delaware's flat, low-lying coastal plain has almost no rocky terrain, so the state faces essentially no rockfall or landslide risk. Instead, erosion, flooding, and soft-soil settlement dominate, driven by the state's sandy coastal soils and proximity to Delaware Bay.
Delaware Bay and the Atlantic Coast both experience ongoing shoreline erosion from storm surge and wave action acting on sandy, loosely consolidated soil. {EROSION_LINK} work along this coastline is a standing priority.
Yes. Soft coastal plain sediments beneath Delaware infrastructure can settle unevenly over time, a {GROUNDSETTLE_LINK} concern distinct from the karst-driven settlement found in limestone states.
GSI maintains {FLOOD_LINK} for Delaware's coastal flooding, which, while less frequent than full hurricane strikes further south, still threatens the state's low-lying infrastructure.
I-95, US-13, the Port of Wilmington, and shoreline communities along Delaware Bay and the Atlantic Coast face the state's combined erosion and flooding exposure.
GSI's {DESIGNBUILD_LINK} model adapts standard erosion control and ground improvement methods to Delaware's sandy, low-relief coastal plain rather than applying techniques designed for rockier terrain.
Corridors prone to washouts and scour often need updated warning signage alongside the structural repair. RoadGuard installs highway signage and sign structures built to the same standards as the roadway itself.
From erosion control to retaining systems, GSI's engineers are ready to assess your Delaware site.
