U.S. Army Corps of Engineers Disturbance Mapping Project

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The U.S. Army Corps of Engineers needed a quantifiable tool to evaluate the likelihood of impacting sensitive cultural resources when considering project and facility improvements throughout Washington.

ESA worked to determine the extent of historic disturbances within the 9,300-acre McNary Reservoir and the 17,000-acre Lower Granite Reservoir. We researched historic construction plans and specifications, evaluating these projects for potential disturbance to native landforms. We developed a comprehensive Access database and GIS mapping system to depict areas of earth disturbance related to dam and facilities construction, including georeferencing scanned historical documents and digitizing archaeological resources. The final product was a robust GIS-linked Access database and a companion bound hard-copy map atlas. To better facilitate the use of the database, our staff prepared hands-on training to demonstrate applications of the digital data as they relate to current projects.

ESA’s robust research formed the basis for innovative tools the U.S. Army Corps of Engineers relies on to minimize disturbances of historic and native landforms and maximize investments along the McNary and Lower Granite Reservoirs.

Specialized Services

  • Content analysis
  • Environmental compliance documentation
  • High-quality cartographic mapping
  • Historical investigations, documentation, and plans
  • Information management
  • Inventories and reporting
  • Native American, ethnographic, and archaeological studies
  • Real-time data collection systems
  • Section 106 compliance and documentation
  • US Army Corps of Engineers