S.T. Hudson Engineers, Inc.

Complete Marine Engineering Solutions

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About the firm

S.T. Hudson Engineers, Inc. is a marine and coastal engineering specialist providing innovative and cost-effective designs for new and existing port and marine terminal facilities. For over 57 years, it has delivered turnkey marine and terminal engineering services across the U.S. and internationally, with extensive experience in the Eastern U.S., Gulf Coast, and the Caribbean. In-house capabilities include certified hard-hat dive crews, hydrographic and geophysical surveying, geotechnical investigation, environmental permitting, and EPC delivery. Clients include port authorities, energy terminals, and government agencies.

Firm type
Marine Engineering · Coastal Engineering · Environmental Engineering · Mechanical Engineering · Geotechnical Engineering · EPC

Capabilities

Investigation Services

Service website

Marine investigation services assessing the condition of structures and gathering detailed underwater and aerial data.

  • Hydrographic Survey

    Performs high-resolution hydrographic surveys using acoustic sonar, multibeam and single-beam echo sounders, and real-time kinematic GPS positioning for berth clearance and condition assessments.

  • Geophysical Survey

    Provides sub-bottom profiling, side scan sonar, magnetometer mapping, and seismic reflection to aid in hazard detection, pipeline/cable route planning, and ground modeling.

  • Geotechnical Investigation

    Conducts vibracoring, core drilling, box coring, and grab sampling to analyze seabed composition and support foundational designs.

  • Dive Inspection

    Conducted by commercially-certified hard-hat divers to inspect underwater conditions of berth and marine structures.

  • UAV Survey

    Deploys unmanned aerial vehicles to collect high-quality, detailed aerial data for waterfront and marine terminal facilities.

  • ROV Operations

    Utilizes remotely operated vehicles to safely investigate underwater areas that are inaccessible or hazardous to divers.

Environmental Services

Service website

Permitting, dredge consultation, sampling and analysis, and regulatory compliance for marine projects.

  • Permitting

    Navigates local, state, and federal regulatory permitting processes for waterfront and marine projects.

  • Dredge Consultation

    Provides dredging specifications, pre- and post-dredge surveys, siltation rate monitoring, and dredge volume calculations.

  • Sampling & Analysis

    Performs environmental sampling, seabed grab sampling, and core logging to support compliance and dredging programs.

  • Regulatory Compliance

    Guides facility owners through environmental and ecological regulations, ensuring compliance for marine operations.

Engineering Services

Service website

Marine and mechanical engineering design services for waterfront and terminal facilities using the latest design software.

  • Marine Engineering

    Designs new and rehabilitated port and marine terminal structures, fender systems, docks, wharves, and harbor facilities.

  • Mechanical Engineering

    Delivers mechanical engineering and design services tailored for waterfront facilities and industrial marine terminals.

Construction Management

Service website

Turnkey EPC services, owner's representation, and construction support for marine facility and terminal projects.

  • Owner's Representative

    Provides project guidance, budget control, and scheduling advocacy on behalf of facility owners throughout the project lifecycle.

  • Construction Support

    Offers on-site technical feedback, review of contractor approaches, and value engineering options during project execution.

  • Engineer, Procure & Construct (EPC)

    Delivers complete, turnkey engineering, procurement, and construction solutions for marine facilities and terminal projects.

Industries

Ports & Harbors · Marine · Oil & Gas · Government · Environmental & Remediation · Bridges

Projects

Philadelphia Regional Port Authority Project

Philadelphia, Pennsylvania · Ports & Harbors · Client: Philadelphia Regional Port Authority

Project details

Marine engineering and support services for port facility improvements.

S.T. Hudson Engineers, Inc. - Engineering Firms