Exploration no. 103169 is a Geotechnical (depth 61 feet) named: 1-B described in subsurface document no. 35154. The document, a report titled Capital Lake Overcrossing by WSDOT, Aug 12, 1983; J No. L-6941 was prepared by WA State Dept. of Transportation on 01-31-1955 for a Roadway project.