35-264 Upper Souris, North Dakota. September 25, 1935. Unit No. 83. Looking down stream through gate control structure while steel and floor in lower half is being placed. Cut-off wall with forms still in place is under section to be occupied by control dates. Wall in foreground is under extreme upper end of structure. 35-312 Upper Souris, North Dakota. October 4, 1935. Dam No. 83. Outlet gates structure while forms were being placed for side walls. Floor already in place, and side walls steel in place. Photo by Mr. Anderson, photographer from the A.C. at Fargo. 35-338 Upper Souris, North Dakota. October 4, 1935. Dam No. 83. Outlet Gate Structure. Looking up stream along west side of structure while forms were being placed. View shows detail of steel construction. 35-309 Upper Souris, North Dakota. Dam No. 83. October 15, 1935. Outlet Gate Control Structure, which is a double barrel tunnel, each chamber measuring 10 feet high by 12 feet wide. Upper up-stream half of structure is in process of construction. Forms are not fully in place for down-stream half. Floor has been placed and verticle [vertical] steel is in position, as may be seen. 35-310 Upper Souris, North Dakota. Dam No. 83. October 15, 1935. Outlet Gate Control Structure. View showing up-stream face during process of pouring concrete. Bucket suspended from crane con-one cubic yard of concrete. 35-318 and 318a Upper Souris, North Dakota. October 15, 1935. Dam No. 83. Two views showing night operations in completing the pouring of concrete in the control gates structure. 35-308 Upper Souris, North Dakota. Dam No. 83. October 15, 1935. Panoram showing broad side of gate control structure in process of construction. Concrete has been poured over double barrel, in middle of picture, and is being poured in the bulk-head section on the right where the gates are to be placed. In the left-hand picture, note the detail showing general arrangement of equipment where a 5-bag mixer and a Northwest dragline are the chief items of machinery. 35-350 Upper Souris, North Dakota. Dam No. 83. October 23, 1935. Panoram showing broad side of reservoir control gate structure while middle panel was being poured. Carpenters are at work placing forms on left end of structure, while the concrete is being poured in the middle. Forms have been stripped from the right end where the concrete was poured on October 15. West end dam is visible in distance. Stock pile of dirt is ready for use in puddling around structure when it is completed. 35-349 and 349a Upper Souris, North Dakota. October 23, 1935. Dam No. 83. Two views showing detail of puddling operation near upper end of reservoir gate control structure. East side. 35-351 and 351a Upper Souris, North Dakota. October 23, 1935. Dam No. 83. Two views showing detail of puddling operation near upper end of reservoir gate control structure. East side. 35-352 and 352a Upper Souris, North Dakota. October 23, 1935. Dam No. 83. Two views showing detail of puddling operation near upper end of reservoir gate control structure. East side. 35-361 Upper Souris, North Dakota. October 24, 1935. Dam No. 83. Preparing for puddling operations, upper outlet control gates. West side. 35-362 Upper Souris, North Dakota. October 24, 1935. Dam No. 83. Beginning the operation of puddling on west side of outlet control gates. 35-357 and 358 Upper Souris, North Daktoa. October 24, 1935. Dam No. 83. Two views showing detail of puddling operation, east side of outlet control structure. 35-360 Upper Souris, North Dakota. Dam No. 83. October 24, 1935. Detail view showing puddling operation, east side of outlet structure, near north end. Shovel passes loam into pool of water and mixes it and crowds it against the structure. 35-359 Upper Souris, North Dakota. October 24, 1935. Dam No. 83. View of upper end of outlet control gate structure during process of puddling. Shovel is passing dirt into pool of water next to structure for mixing the same into a thick batter. 35-356 Upper Souris, North Dakota. October 24, 1935. Dam No. 83. General view of east side of outlet control gates during process of puddling. 35-370 Upper Souris, North Dakota. October 24, 1935. Dam No. 83. Night view showing outlet of reservoir control gates being prepared for the final concrete pouring. Light plant shown in foreground on left, with tin pan reflector casting light on structure. 35-374 Upper Souris, North Dakota. October 26, 1935. Dam No. 83. Panoram of River Control Outlet Gates. Closing up the puddling trench on the west side of intake, and preparing for raising the earth fill across the up-stream half of the outlet structure. On right is shown final touches to forms in preparation for the last pour of concrete in the outlet end of structure. 35-375 Upper Souris, North Dakota. October 26, 1935. Dam No. 83. Completing the puddling of the east side of outlet structure in preparation for carrying the earth fill on up to final completion. 35-77 Upper Souris, North Dakota. October 26, 1935. Dam No. 83. Panoram of outlet control works with forms on right end completed and ready for final pour of concrete. Caterpillar paver is moving into position. This machine is shown on top of the dam, moving toward the structure. 35-378 Upper Souris, North Dakota. October 27, 1935. Dam No. 83. Broad side view of gate control structure while last pour of concrete was being made. Looking toward east end of dam. 35-380 Upper Souris, North Dakota. October 27, 1935. Dam No. 83. Panoramic view of outlet structure while final pour of concrete was being made. On right is shown detail of mixer operations. 35-381 Upper Souris, North Dakota. October 27, 1935. Dam No. 83. Close-up view of west end of gate control structure while concrete was being poured. Looking west. 35-400 Upper Souris, North Dakota. November 17, 1935. Structure No. 83. Intake to Control Gates showing protection against freezing. 35-423 Upper Souris, North Dakota. November 24, 1935. Structure No. 83. Gate control works, up-stream face, showing gates completely installed, ready for operation. 35-422 Upper Souris, North Dakota. November 25, 1935. Dam No. 83. Close-up view showing gates fully installed and ready for operation. Relative height and size may be estimated by comparing with automobile just visible over upper left-hand corner.