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Ensuring Environmental Responsibility During the Transportation Engineering Design Process


TPD has provided Environmental services for public and private sector clients related to transportation engineering projects since its inception in 1989. TPD is capable of performing studies for a wide variety of environmental projects ranging from simple noise studies to wetland delineations to complex Environmental Impact Statement (EIS) projects.


TPD personnel have completed a wide range of environmental projects in the following discipline areas:

  • Stream / wetland delineation and mitigation
  • Macroinvertebrate studies
  • Threatened and endangered species studies
  • Waterway permitting
  • Erosion & sedimentation control design
  • CPESC inspection services
  • NPDES permitting
  • Noise modeling / monitoring
  • NEPA documentation
  • Phase 1 environmental site assessments
  • Due diligence screenings
  • Qualitative air quality assessment
  • Public involvement and community outreach
  • Agricultural lands assessment
  • Section 4(f) and section 6(f) coordination
  • Natural resources inventories

We are prepared to provide environmental services for almost any transportation, trail, wetland or stream restoration project, including but not limited to:

  • Highway design
  • Bridge design
  • Trail design
  • Stream and wetland restoration
  • Stream and wetland monitoring
  • Land development
  • Signal projects
  • Highway occupancy permitting (HOP) projects

TPD has worked on projects for a variety of public and private sector clients.

  • Municipalities
  • Counties
  • Departments of transportation (DOTs)
  • Toll commissions / authorities
  • Private land developers