Section 106, NEPA/SEPA Compliance

Our Cultural Resources Management compliance services include:

  • Desktop/Class I inventories
  • Historic and archival research
  • Tribal consultation
  • NEPA/SEPA integration
  • Intensive/Class III surveys
  • Archaeological and historic resource documentation
  • Cultural landscape inventories and reports
  • Traditional Cultural Properties/Traditional Land-Use studies
  • National Register evaluations
  • Effects determinations
  • Agreement documents (MOAs, MOUs)
  • Mitigation of adverse effects projects (data recovery, HABS/HAER, interpretive displays and documents)
  • Historic Properties Management Plans
  • 4f documentations

HRA also assists clients and agencies in the energy, transportation, federal, communications, and development sectors. Our projects range from large multistate linear corridors to individual property assessments. Our projects include:

  • Interstate oipelines
  • Transmission lines and facilities
  • Highway improvements and bridge replacements
  • Hydropower relicensing and implementation
  • Land exchanges
  • Alternative energy generation (solar, wind, geothermal)
  • Mines
  • Commercial and residential developments

Featured Members

Featured Projects

Cultural Resource Management

Facilitating Government-to-Government Consultation

HRA provides assistance and professional guidance to agencies and private clients in formal and informal tribal consultation and communication.


Through integration of GPS (Global Positioning System) and GIS (Geographic Information System) into our fieldwork and deliverables, HRA gathers and disseminates highly accurate…

Historic Preservation

HRA’s specialists assist clients with a range of historic preservation services, including preservation planning; adaptive reuse, rehabilitation, restoration and conservation…