Bridge & Infrastructure Foundations

Heavy-duty deep foundations for bridges, highways, tunnels, and transportation infrastructure.

Bridge and infrastructure foundations represent some of the most demanding deep foundation applications — combining very high loads, complex loading conditions (lateral, uplift, scour, seismic), difficult access (over water, in traffic), and long design life requirements (75–100 years). Bridge foundations typically use large-diameter drilled shafts (6–12 foot diameter) or driven pile groups (steel H-piles or pipe piles) extending to bedrock or dense bearing strata. Design must account for scour (erosion of soil around the foundation during flooding), seismic loading, ship impact, and thermal expansion forces. Construction often requires cofferdams, barge-mounted equipment, and work over or adjacent to active waterways.

Common Foundation Methods

Large-diameter drilled shafts
Driven steel piles
Cofferdam construction
Micropile retrofit
Drilled shaft with permanent casing

Industries Served

Transportation (DOT)RailMaritimeMunicipal infrastructure

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