The Construction of US-169 & I-94 Experimental Thin & Ultra-Thin White Topping Sections in MNStatus: CompleteReport Date: 09/05/2001 Summary: This report presents the results of research project to investigate the design and performance of thin and ultra-thin whitetopping. To learn more about whitetopping, the Minnesota Department of Transportation (Mn/DOT) constructed a whitetopping project consisting of six test sections on I-94 at a research facility and three test sections at intersections on US-169 at Elk River. Final Deliverables: Report #2001-07 Related Materials: Related Research: