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This feature class contains Multnomah County stormwater culvert infrastructure. A variety of methods and data sources were employed to create this data. Existing datasets obtained from neighbor jurisdictions were used as a starting point. Point accuracy (within the county right of way) was then improved using the best available data sources. These sources include resource grade GPS, Ground Based LIDAR, Aerial Photos, Georeferenced As-Built Drawings, Georeferenced Mylar Drawings, Field Visits, and Google Streetview. Depending on the source used to verify the data, the accuracy of this feature class is estimated to be < 3 meters<\/SPAN><\/P>

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