Keywords: Photograph with caption "Pump No. 2," Lock and Dam No. 6. - NARA - 282418.tif Scope and content General notes 282418 Local identifier War Department Office of the Chief of Engineers St Paul District 1866 - 09/18/1947 NARA's Great Lakes Region Chicago NRDA 7358 South Pulaski Road Chicago IL 60629-5898 1934-03-13 Record group Record Group 77 Records of the Office of the Chief of Engineers 1789 - 1999 Record group ARC 406 Operations and Maintenance Files Relating to Lock and Dam Numbers 3-10 of the Mississippi River Nine Foot Channel Project compiled 1931 - 1943 Series ARC 282367 File unit 625 9a/9-4 Final Cofferdam Report Lock 6 ca 1931 - ca 1943 File unit ARC 282414 Variant control numbers NAIL Control Number NRDC-77-SLD3-625 9 A9 4 -C138L6 yes Other versions <gallery> File Photograph_with_caption_ Pump_No _2 _Lock_and_Dam_No _6 _-_NARA_-_282418 tif tif File Photograph_with_caption_ Pump_No _2 _Lock_and_Dam_No _6 _-_NARA_-_282418 jpg jpg </gallery> NARA-cooperation PD-USGov NARA TIF images with categorized JPGs |