Artifacts developed a GIS-Based regional historic roads historic context in partnership with the SRI Foundation, for state roads within two Regional Transportation Planning Organizations (RTPOs, Puget Sound Regional Council and Island County). The project served three purposes:
At the core of this project is a GIS-based tool supporting historic preservation planning and heritage tourism goals for the two RTPOs. The GIS tool provides the integrity levels and analysis results for physical elements, historic character, and historic viewsheds of roads and road corridors. To develop the integrity levels assigned to each road, the GIS based analysis utilized historic maps, data on the historic built environment adjacent to the roads, as-builts, real estate and engineering key maps, current roadway plans and records, and field verification of these data and sources.
These data and sources were combined with historical background information (e.g., historical themes) to evaluate the historical significance and integrity of the roads and corridors. These evaluations and rankings were then used to evaluate the National Register eligibility of the roads and road corridors, and to develop outlines for management plans for the National Register eligible roads and road corridors. These plans include mechanisms for maintaining the significant historic character of the roads and corridors, in addition to recommendations for promoting heritage tourism along the historically significance roads and road corridors.
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This map shows all active and former state roads as well as county roads surveyed.
Integrity of roads addresses the NPS integrity criteria most applicable to roads: location, design, materials, and workmanship.
The analysis of corridors focuses on integrity of setting, feeling, and association, in relation to the road.
View sheds are assessed in terms of integrity of setting, feeling and association.