Surveying in the Rock Island District
Kyle Retzlaff, left, and Lee Schweiger on the Rock Island District’s SV Koot, a shallow water survey boat used in the back waters and for general purpose single track survey. The boat contains a Ross Model 875 sounder, with an 825 for backup. The boat is in the LeClaire Canal where the Corps base is located, just off the Mississippi River by Lock and Dam 14. See Hydrographic Survey feature articles.