H & J International, PC

Engineering design and consulting for bridges, roadways, highways, and transportation structures, from feasibility studies through construction management and inspection.

• Bridge Design

  Full lifecycle bridge services including feasibility studies, hydraulic analysis, foundation design, final design, PS&E submission, and construction services for new construction, rehabilitation, widening, and repairs.

• Roadway and Highway Design

  Comprehensive design for new roadways and highway improvements including line and grade, typical sections, right-of-way plans, traffic control, and erosion and sedimentation control plans across PennDOT, NJDOT, and NYSDOT standards.

• Hydraulic and Hydrological Analysis

  H&H analysis and stormwater drainage design per DOT requirements, including HECRAS open-channel analysis, bridge waterway sizing, and roadway drainage system design.

• NBIS Bridge Inspection

  Routine, interim, emergency, and fracture-critical bridge safety inspections by certified PennDOT and NJDOT inspectors, including rating calculations and report preparation.

• Construction Management

  Project implementation programming, procurement and contract management, construction inspection, performance monitoring, and project closeout for transportation and infrastructure projects.

Engineering design, construction management, and operational consulting for high-speed railway and transit infrastructure, drawing on staff experience with international HSR projects.

• High-Speed Rail Construction Management

  Construction planning, design review, constructability and safety oversight, construction supervision and inspection, system test-run, and commissioning for HSR projects.

• Passenger Train Operation

  Railway operations planning, safety assessments, service quality evaluation, and operation efficiency analysis for rail and HSR lines.

• Transit Infrastructure

  Design, inspection, and condition evaluation of rail and transit structures including bridges, stations, maintenance yards, depots, and transit gauges.

• Operations and Maintenance

  Life cycle analysis, reliability and safety optimization, budget control, compliance oversight, and quality control for rail networks and transit services.

Engineering and consulting for public bus systems, mass transit, light rail, regional rail, and urban transportation networks and facilities.

• Public Transportation Planning and Facility Design

  System planning, facility design, and operations support for bus depots, intermodal transport centers, BRT, mass transit, and light rail systems.

• Urban Transportation Design

  Facility design, traffic demand analysis, traffic modeling, TOD planning, and upgrades for urban roads, bridges, culverts, and non-motorized infrastructure.