Additional Data and Information.--Station data inventory. This place is a amazing sight to see. The Corps constructed roughly 8 miles of levees around Lewiston, ID, to help protect lives and property from potentially destructive high water conditions. Visitor Center. School of Aquatic & Fishery Sciences Contact U.S. Army Corps of Engineers, Walla Walla District for all additional information. Lower Granite Dam contributing to the 2002 out-migration.....14 Table 4. Lower Granite Dam. 3 beds, 2 baths, 1064 sq. POC:, U.S. Army Corps of Engineers, Walla Walla District. . The information and images are from the Army Corps of Engineers 1989 publication, "Columbia River and Tributaries Review Study: Project Data and Operating Limits" unless otherwise noted. Lower Granite Dam is actually regarded to increase flood risk to Lewiston, Idaho. POMEROY — The body of a person was found in the Snake River near Lower Granite Dam in Whitman County some time on Friday, according to a … These web pages provide information about the location, construction date, pool elevation, and powerhouse capacity of the major federal and non-federal hydroelectric projects in the Columbia Basin. He gives us the tale of the tape. The Power Plant distributes electrical power to the Garfield County area electrical grid, which delivers it to electricity consumers. Officials at Lower Granite Lock and Dam are closing dam crossings to the public for two weeks. Map, Address and Phone Number for Lower Granite Dam Lower Granite Dam Pomeroy, WA 99347 888-832-4636. Lower Granite Lock and Dam is a concrete gravity run-of-the-river dam in the northwest United States.On the lower Snake River, it bridges Whitman and Garfield counties in … AAC worked with the US Army Corps of Engineers on the Lower Granite Dam Fish Ladder Temperature improvements project. Click here for a Word document of Lower Granite Dam sites <