Corridor development projects for construction of transportation, transmission lines, and pipelines may significantly affect cultural and natural resources. Review the definition of corridors and identify laws and regulations that may apply to the proposed project. Understand the range of participants involved in the process—from project proponents and consultants, to government agencies and affected communities. Consider timing and planning, including comprehensive resource identification and effective communication practices. Corridor projects benefit from decisions that provide an inclusive analysis of effects and minimize resource disturbance.


  • Definition of corridors
  • Types of projects—above and below ground, listed or eligible historic properties, linear historic properties
  • Considerations—jurisdictions, planning and design, timelines, short-term vs. long-term issues
  • Compliance with applicable laws
  • Which parties perform the environmental/historic preservation analysis?
  • Public meetings
  • Consultation
  • Cultural and natural resources that may be affected—identifying intersections
  • Linking resources to those that value them
  • How resources may be affected—measuring significant impacts and adverse effects    
  • Evaluation and effective practices
  • Comprehensive resource identification using a team of experts
  • Inclusive analysis
  • Effective communication practices
  • Conclusions without resorting to the courts 

Training Curriculum

45-minute, on-demand eLearning

  • 1

    Welcome Letter

    • NPI Welcome Letter

  • 2


    • Corridor Development: Chapter One, Descriptions and Diversity of Corridors

    • Corridor Development: Chapter Two, Identifying Applicable Federal Laws

    • Corridor Development: Chapter Three, Participants and Responsibilities

    • Corridor Development: Chapter Four, Developing a Team Approach

  • 3

    Download Course Slides

    • Corridor Development: Impacts on Cultural and Natural Resources (slide deck)

  • 4

    Download Video Transcript

    • Corridor Development: Impacts on Cultural and Natural Resources (transcript)

  • 5

    Course Evaluation

    • NPI Evaluation



Claudia Nissley

Claudia Nissley, president, C. Nissley Environmental Consultants; a nationally recognized expert in cultural heritage laws and practices; author, educator, and consultant; former executive manager with the Advisory Council on Historic Preservation and governor-appointed Wyoming State Historic Preservation Officer
Full Bio/CV


This training is suitable for

  • Officials and community leaders, archaeologists, architectural historians

  • Cultural and natural resource managers, landscape and preservation architects, planners,

  • Project managers with SHPOs, THPOs, tribes, government agencies, and contractors involved in compliance requirements

Immediate Access

  • $75.00

    Click on "Register Now" and then "Pay with PayPal" to use PayPal or to pay by debit or credit card. Course access is limited to the individual registered and enrolled in the course.

    Get started now


Scholarships covering tuition fees for NPI online trainings are available for participants who show a justifiable need for training and tuition assistance. Read more and download the application.

Customized Training

NPI also offers eLearning and webinar modules as customized training to meet specific organizational needs. They can be tailored to create training at a time convenient to the sponsor. Contact NPI at 703.765.0100 or [email protected] for further information.