Topographic survey sheets from Chittenden's 1907 flood report, lower White, Duwamish and Puyallup Rivers

Hiram Chittenden was an army engineer tasked with studying flood control issues in the White River watershed in 1907, following the major 1906 avulsion of the White River. As part of that work, he conducted a series of detailed topographic surveys of the lower White, Puyallup and Duwamish Rivers in 1907, including regular river cross sections and notations of water surface heights, both at the time of the survey and as estimated for the 1906 flood. These surveys were compiled into a set of 31 survey sheets. Copies of those sheets were archived with King County, and were later digitally scanned by Brian Collins at the University of Washington, who kindly provided them to the authors. This data release consists of those scans, in .jpg format. The full text of Chittenden's 1907 report is available online at https://digitalcollections.lib.washington.edu/digital/collection/ww-text/id/13279