WSDOT - Environmental Mitigation Sites

This is a polygon layer showing the spatial extent of WSDOT owned mitigation sites that will be updated annually. Accuracy is limited to best information available, so varies from site to site. Data was gathered from .dgn files, georeferenced plan sheets, and/or aerial photos. This is intended to be as complete of an inventory as possible of all WSDOT owned environmental mitigation sites. Last Updated May 2023.本数据集为多边形图层，展示将按年度更新的华盛顿州运输部（WSDOT）所属环境缓解场地的空间范围。数据精度以现有可获取的最优信息为基准，因此不同场地的精度存在差异。数据采集自.dgn格式文件、经地理配准的设计图幅以及/或航空影像。本数据集旨在尽可能全面地收录WSDOT所有的环境缓解场地，最后更新时间为2023年5月。