Transportation Capabilities

BRIDGE REPLACEMENT AND REHABILITATION DESIGN

  • Design for new, reconstruction, and historic projects
  • Specialized bridge structures
  • Super-load evaluations and load ratings
  • Bridge inspection
  • Noise barriers, retaining walls, and large culverts
  • Seismic, fatigue, and vulnerability assessments
  • Hydrologic and hydraulic studies
  • Scour evaluation
  • Erection and construction-phase engineering
  • Environmental permitting

HIGHWAYS, EXPRESSWAYS, AND LOCAL STREET DESIGN

  • Main-street revitalization
  • Intersection improvements and safety enhancements
  • Traffic control plans
  • Capacity analysis and traffic signal design
  • Bicycle and pedestrian trails and facilities
  • Pavement evaluation, life cycle, and design
  • Planning and corridor studies
  • Public participation
  • Interchanges (high-speed and local-access)
  • Drainage analysis and design
  • Stormwater pollution prevention plans
  • Accident analysis and evaluation
  • Signing and sign structure design
  • Lighting systems
  • Environmental permitting

RAIL PLANNING AND DESIGN

  • Track and right-of-way condition assessment
  • Emergency inspections and repair recommendations
  • Long-term maintenance programming
  • Track reactivation studies
  • Track scales
  • Conveyance and bulk transfer systems
  • Transload and intermodal terminals
  • Locomotive and car maintenance facilities
  • Passenger and freight facilities
  • Mainline, side track, and spur construction/rehabilitation
  • Yard and interchange reconfiguration
  • Bridge and culvert rehabilitation/replacement
  • Drainage improvements, scour evaluation, and washout repair
  • Load capacity and clearance improvements
  • Grade crossings and warning devices

CONSTRUCTION SUPPORT SERVICES

  • Construction consultation
  • Design/build
  • Shop drawing reviews
  • Crane layout and coordination
  • Specialty rigging and lifting
  • Bridge erection and demolition
  • Bracing and shoring
  • Sheet piling
  • Soldier piles and lagging
  • Braced and cellular cofferdams
  • Tie-backs or rakers
  • Crib walls
  • Soil nailing
  • Geosynthetic reinforced walls
  • Construction shielding
  • Scaffolding and work platforms
  • Structural analysis and load rating
  • Load testing/nondestructive testing
  • Temporary structures
  • Fall arrest static lines

WATER RESOURCES SERVICES

  • Watershed delineation
  • Stream survey
  • GIS data collection
  • Runoff hydrology development
  • One-dimensional floodplain/floodway modeling
  • Two-dimensional floodplain/floodway modeling
  • Floodplain/floodway mapping
  • Flood risk assessment
  • State and Federal floodplain regulatory permitting
  • Bridge/culvert hydraulic analysis & design
  • Scour analysis
  • FEMA Conditional Letter of Map Revision (CLOMR) preparation
  • FEMA Letter of Map Revision (LOMR) preparation
  • Storm drainage system design
  • Open channel analysis & design
  • Stormwater quantity and quality planning
  • Stormwater management analysis & design
  • Erosion and sediment pollution control planning
  • During construction and post-construction stormwater regulatory permitting
  • Dam breach analysis
  • Dam emergency action plans/inundation mapping