Category:Mississippi River Lock and Dam number 11 - HAER

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Mississippi River Lock and Dam number 11 - HAER drawings‎ (16 F)

Media in category "Mississippi River Lock and Dam number 11 - HAER"

The following 35 files are in this category, out of 35 total.

VIEW SHOWING LOCK INTERIOR, EAST SIDE AND UPSTREAM MITRE GATES, MAIN LOCK - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, HAER IOWA,31-DUBU,11-15.tif 5,191 × 3,690; 18.27 MB
DETAIL VIEW OF TAINTER GATE, SHOWING NON-SUBMERGIBLE GIRDER, TYPE 2B, DAM - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, HAER IOWA,31-DUBU,11-8.tif 5,198 × 3,708; 18.38 MB
Grant11171940 11A-73 7x9 crop Lock and Dam 11 with Eagle Point Bridge.jpg 653 × 510; 99 KB
VIEW OF UPSTREAM GUIDEWALL AND LAGOON, MAIN LOCK - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-21.tif 5,363 × 3,843; 19.66 MB
VIEW OF ALMOST COMPLETED LOCK CONSTRUCTION. April 1935 - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-32.tif 5,225 × 3,722; 18.55 MB
VIEW OF UPPER LOCK CHAMBER. May 1941 - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-30.tif 5,206 × 3,722; 18.48 MB
VIEW OF OVERALL LOCK FOUNDATION CONSTRUCTION, August 1934 - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-31.tif 5,217 × 3,711; 18.47 MB
VIEW OF DAM, SHOWING NON-SUBMERGIBLE ROLLER GATES - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-14.tif 5,228 × 3,700; 18.45 MB
VIEW OF DAM, SHOWING ARCHED SERVICE BRIDGE SPAN - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-13.tif 5,200 × 3,699; 18.35 MB
VIEW OF DOWNSTREAM GUIDEWALL, MAIN LOCK - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-22.tif 5,219 × 3,710; 18.47 MB
VIEW SHOWING EAST SIDE OF ROLLER GATE PIER HOUSE, TYPE 2A, DAM - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, HAER IOWA,31-DUBU,11-9.tif 3,718 × 5,203; 18.45 MB
DETAIL VIEW OF DAM, SHOWING FREESTANDING LIGHT STANDARD - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-7.tif 5,215 × 3,714; 18.47 MB
DETAIL VIEW OF DAM, SHOWING ROLLER GATE BULKHEAD - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-6.tif 5,202 × 3,706; 18.39 MB
DETAIL VIEW OF DAM, SHOWING TAINTER GATE BULKHEAD - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-5.tif 5,244 × 3,729; 18.65 MB
DETAIL VIEW OF UPSTREAM TILE WATER LEVEL GAUGE, RIVERWALL, MAIN LOCK - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque HAER IOWA,31-DUBU,11-19.tif 5,229 × 3,694; 18.42 MB
GENERAL HIGH ALTITUDE AERIAL VIEW OF COMPLEX AND GENERAL SETTING. October 1982 - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque HAER IOWA,31-DUBU,11-29.tif 5,216 × 3,711; 18.46 MB
GENERAL VIEW OF DAM CONSTRUCTION. January 1937 - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-33.tif 5,237 × 3,700; 18.48 MB
GENERAL VIEW OF DAM, DOWNSTREAM SIDE, LOOKING FROM GUIDEWALL - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, HAER IOWA,31-DUBU,11-2.tif 5,374 × 3,859; 19.78 MB
GENERAL VIEW OF DAM, DOWNSTREAM SIDE, LOOKING FROM TOE OF DIKE - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, HAER IOWA,31-DUBU,11-1.tif 5,193 × 3,684; 18.25 MB
GENERAL VIEW OF ESPLANADE, LOOKING NORTH - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-4.tif 5,225 × 3,714; 18.51 MB
GENERAL VIEW OF LOCK, DOWNSTREAM SIDE, LOOKING FROM GUIDEWALL - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, HAER IOWA,31-DUBU,11-3.tif 5,215 × 3,733; 18.57 MB
INTERIOR VIEW OF CENTRAL CONTROL STATION, LOOKING NORTH - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-25.tif 5,222 × 3,712; 18.49 MB
INTERIOR VIEW OF CENTRAL CONTROL STATION, LOOKING SOUTH - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-26.tif 5,223 × 3,719; 18.53 MB
VIEW OF CENTRAL CONTROL STATION AND VISITOR CENTER-RIVER SIDES (Visitor Center Building constructed after field negatives were taken and numbered.) - Mississippi River 9-Foot HAER IOWA,31-DUBU,11-50.tif 5,231 × 3,726; 18.59 MB
VIEW OF SERVICE GARAGE-SHOP, EAST FRONT, ESPLANADE - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-28.tif 5,194 × 3,700; 18.33 MB
VIEW OF UPSTREAM RIVERWALL EXTENSION, LOCKS - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-20.tif 5,239 × 3,710; 18.54 MB
VIEW OF UTILITY SHED, EAST FRONT, ESPLANADE - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-27.tif 5,179 × 3,689; 18.22 MB
VIEW SHOWING BACK (RIVER) SIDE OF CENTRAL CONTROL STATION - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-24.tif 5,358 × 3,864; 19.75 MB
VIEW SHOWING FRONT (LAND) SIDE OF CENTRAL CONTROL STATION - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-23.tif 5,000 × 3,588; 17.11 MB
VIEW SHOWING WEST SIDE OF ROLLER GATE PIER HOUSE, TYPE 2A, DAM - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County HAER IOWA,31-DUBU,11-10.tif 5,214 × 3,699; 18.4 MB
DETAIL VIEW OF CIRCULAR BRONZE ROLLER GATE POSITION GAUGE, ROLLER GATE PIER HOUSE, TYPE 2A, DAM - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper HAER IOWA,31-DUBU,11-12.tif 5,223 × 3,696; 18.41 MB
DETAIL VIEW OF TRAVELLING MOORING KEVEL, UPSTREAM LANDWALL, MAIN LOCK - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque HAER IOWA,31-DUBU,11-16.tif 5,218 × 3,697; 18.4 MB
DETAIL VIEW OF UPSTREAM HAULAGE UNIT, LANDWALL, MAIN LOCK - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-18.tif 5,200 × 3,699; 18.35 MB
DETAIL VIEW OF UPSTREAM LOCK OPERATING CONTROLS, LANDWALL, MAIN LOCK - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque HAER IOWA,31-DUBU,11-17.tif 5,221 × 3,722; 18.53 MB
INTERIOR VIEW OF ROLLER GATE PIER HOUSE, TYPE 2A, DAM - Mississippi River 9-Foot Channel Project, Lock and Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA HAER IOWA,31-DUBU,11-11.tif 3,699 × 5,235; 18.47 MB

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