The first step in the Section 106 process is to determine if archeological and historic resources are located in the project area and, if there are such resources present, to determine whether or not they are listed on or eligible for the National Register of Historic Places.
As mentioned elsewhere in this manual, the Oklahoma Archeological Survey consults with agencies in the identification and evaluation of archeological resources through a cooperative agreement with the SHPO. OAS maintains the site files for Oklahoma's known prehistoric archeological resources. Additionally, OAS can provide a list of contractors who routinely carry out archeological survey projects in the state. For further details, contact OAS at 405/325-7211.
The SHPO consults with agencies in the identification and evaluation of historic resources (standing structures). In this section of the manual, users will find the SHPO's Historic Preservation Resource Identification Form and instructions for completing it and producing the required photographs to accompany it. The agency must generate a Historic Preservation Resource Identification Form and photographs for each standing structure within the project area that is forty-five (45) years old or older, and submit the documentation to the SHPO for an opinion on the property's or properties' eligibility for the National Register of Historic Places. This is the minimum amount of information needed for the SHPO staff to quickly and accurately evaluate most resources.
Agencies should be aware that there may be instances where additional documentation is requested before an eligibility opinion can be issued. However, because the vast majority of eligibility decisions can be based on this limited information, the SHPO believes that it is far more efficient and cost effective for agencies to provide this basic information and in rare cases submit additional material than to ask them to supply far more detailed data on every property.
An easy way to determine if a particular property is already listed on the National Register of Historic Places or is within the boundaries of a listed district, is to consult Oklahoma's National Register Handbook, available free of charge from the SHPO. Researchers are welcome to consult the Oklahoma Landmarks Inventory (OLI) files and other materials in the State Historic Preservation Office which may be quite useful to agencies in the identification and evaluation efforts of the Section 106 process.
If it is determined that archeological or historic resources eligible for or listed on the National Register of Historic Places are within or near a project location, the agency will consult with the SHPO, OAS and others as appropriate to assess the impacts of the undertaking on the resources and, if necessary, mitigate any adverse effects.
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