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Project Review & Compliance > Guidelines for Wind Farm Development Projects

Cultural & Historic Resources Survey Requirements for Wind Farm Development Projects

Lempster Wind Farm The New Hampshire Division of Historical Resources (DHR) has established the following requirements for the assessment of historic and cultural resources associated with the development of wind farm projects in New Hampshire. Due to the scope of these types of projects, the DHR is requesting that project proponents and consultants contact the DHR to schedule a meeting to discuss project survey needs early in the planning phase. The scope of impacts for these types of projects will be reviewed for the direct and indirect effects to historical resources.

In consultation with the DHR on requirements related to Section 106 of the National Historic Preservation Act, the following tasks shall be performed to identify historical resources:

Survey for Historic Resources

Prior to initiating the survey work, the applicant/consultant shall schedule a meeting with the DHR to verify the Area of Potential Effects (APE).

  • Establish a 3-mile APE and use topograhic survey data to determine what areas the structures may be visible from (viewshed)
  • Conduct search of the DHR historic property files for properties in the project APE currently listed on or determined eligible for the National Register of Historic Places
  • Preparation of a NHDHR Project Area Form to provide historical and architectural context for the project area and recommendations for further individual and district inventory, as needed; in collaboration with the town where the project is located and with adjacent towns
  • Conduct field survey within the APE as defined by the topographic study (any visible viewshed areas) to locate, identify, and evaluate the National Register eligibility of any properties over 50 years of age within the 3-mile radius not previously recorded in the DHR files
  • Provide DHR with photographs toward the project area from properties (structures, buildings and districts) within the 3-mile radius that meet the following criteria:
    • Are in the project’s viewshed
    • Are listed or eligible for the National Register or have been identified through survey and evaluation as meeting the eligibility requirements for the National Register and whose setting is a character-defining feature of the property,
    • Based on review of photographs by DHR, photosimulations may be requested for properties identified as having a potential visual impact
    • Properties previously listed on or determined eligible for listing on the National Register within a 5-mile radius will be identified, and sample photographs toward the project area from an example property (or properties) shall be submitted, in order to provide DHR with potential viewshed impacts from that range
    • All survey work will be submitted to the DHR for review and comment

Survey for Archaeological Resources

The installation of wind-turbine generators will require many ground disturbances, not only for the placement of the turbines, but also for access roads, construction staging areas, borrow pits, connection to the power grids, utility corridors, new building locations, and other areas where the current ground surface may be modified as a result of the project.

Where there have been no archaeological surveys conducted in these areas, a qualified archaeological consultant will be required to conduct a sensitivity assessment of the direct APE.

  • File search at the DHR offices on archaeological sites recorded in the general area of the project
  • Field assessment of all areas of potential ground disturbing activity by the project (as mentioned above)
  • Based on results of the visual assessment, Phase IB testing (typically shovel test pits) and analysis will be done at the areas identified as archaeologically sensitive
  • Once survey requirements are completed a report will be submitted to the DHR for review and comment
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