Category:Owyhee Dam

Subcategories

This category has the following 2 subcategories, out of 2 total.

Media in category "Owyhee Dam"

The following 200 files are in this category, out of 203 total.

• 
  AERIAL VIEW OF OWYHEE DAM AND RESERVOIR. VIEW TO SOUTH. Photocopy of photograph by J.D. Roderick, U.S. Bureau of Reclamation, Pacific Northwest Region, May 15, 1970. - Owyhee HAER ORE,23-NYS.V,1-56.tif 5,000 × 4,038; 19.26 MB
  
• 
  AERIAL VIEW OF OWYHEE DAM AND RESERVOIR. VIEW TO SOUTHEAST. Photocopy of photocopy by J.D. Roderick, U.S. Bureau of Reclamation, Pacific Northwest Region, June 20, 1969. - HAER ORE,23-NYS.V,1-57.tif 4,092 × 5,000; 19.51 MB
  
• 
  AERIAL VIEW OF OWYHEE DAM SHOWING RING-GATE SPILLWAY. VIEW TO NORTHEAST. Aerial photo by Glade Walker, U.S. Bureau of Reclamation, Pacific Northwest Region, September 29, 1989. HAER ORE,23-NYS.V,1-59.tif 3,955 × 5,000; 18.86 MB
  
• 
  AERIAL VIEW OF UPSTREAM FACE OF OWYEE DAM. VIEW TO NORTHWEST. Photocopy of photograph by Glade Walker, U.S. Bureau of Reclamation, Pacific Northwest Region, September 22, 1977. HAER ORE,23-NYS.V,1-58.tif 5,000 × 4,008; 19.11 MB
  
• 
  Photographic copy of historic photo, October 25, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM UNDER CONSTRUCTION, FROM POINT HAER ORE,23-NYS.V,1-98.tif 5,000 × 4,005; 19.1 MB
  
• 
  Photographic copy of historic photo, June 3, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM NEARING COMPLETION; SHOWING HAER ORE,23-NYS.V,1-112.tif 5,000 × 3,982; 18.99 MB
  
• 
  Aerial view of Owyhee Dam showing ring-gate spillway - 01.jpg 3,260 × 3,253; 5.05 MB
  
• 
  DAM AFTERBAY, WITH OWYEE RIVER IN FOREGROUND, SHOWING OUTLET TUNNEL PORTAL (LEFT) AND POWERHOUSE AND ENTRANCE PORTAL TO DAM INTERIOR (RIGHT). NOTE RELEASE OF WATER FROM NEEDLE HAER ORE,23-NYS.V,1-6.tif 5,000 × 4,061; 19.37 MB
  
• 
  DAM CREST FROM NORTH ABUTMENT, SHOWING SERVICE ROAD AND PARAPET WALLS. VIEW TO SOUTH. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-16.tif 5,000 × 3,988; 19.02 MB
  
• 
  DAM CREST FROM WEST ABUTMENT, SHOWING SERVICE ROAD AND PARAPET WALLS. NOTE RING-GATE SPILLWAY FOR OUTLET TUNNEL AT RIGHT BACKGROUND. VIEW TO NORTHEAST. - Owyhee Dam, Across HAER ORE,23-NYS.V,1-15.tif 5,000 × 4,027; 19.2 MB
  
• 
  DEDICATION PLAQUE MOUNTED ON DOWNSTREAM PARAPET WALL AT WEST ABUTMENT. VIEW TO NORTH. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-18.tif 5,000 × 3,993; 19.04 MB
  
• 
  DETAIL OF DAM CREST FROM WEST ABUTMENT, SHOWING SERVICE ROAD AND PARAPET WALL, WITH DEDICATION PLAQUE MOUNTED ON WALL IN LEFT FOREGROUND. VIEW TO NORTHEAST. - Owyhee Dam, Across HAER ORE,23-NYS.V,1-17.tif 5,000 × 3,992; 19.04 MB
  
• 
  DETAIL OF DOWNSTREAM FACE OF DAM FROM NORTH ABUTMENT, WITH VALVEHOUSE AT LOWER RIGHT. VIEW TO SOUTH. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-10.tif 4,038 × 5,000; 19.26 MB
  
• 
  DETAIL OF DOWNSTREAM FACE OF DAM FROM WEST ABUTMENT. VIEW TO NORTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-8.tif 4,002 × 5,000; 19.09 MB
  
• 
  DETAIL OF DOWNSTREAM FACE OF DAM, SHOWING CONCRETE FORMWORK AND VALVEHOUSE. VIEW TO SOUTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-11.tif 4,020 × 5,000; 19.17 MB
  
• 
  DETAIL OF DOWNSTREAM PARAPET WALL, SHOWING BLIND ARCADE AND CORBELLED LIGHT STANDARD BASES. VIEW TO SOUTH. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-9.tif 4,004 × 5,000; 19.1 MB
  
• 
  DETAIL OF NEEDLE VALVE HOUSINGS IN VALVEHOUSE FOR NEEDLE VALVE OUTLET WORKS ON GALLERY 2. VIEW TO EAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-44.tif 5,000 × 3,987; 19.01 MB
  
• 
  DETAIL OF OVERHEAD SERVICE CRANE (5-TON CRANE MANUFACTURED BY ARMINGTON CARRIAGE; 3-TON HOIST MANUFACTURED BY WRIGHT HOIST COMPANY) IN VALVEHOUSE FOR NEEDLE VALVE OUTLET WORKS HAER ORE,23-NYS.V,1-45.tif 4,014 × 5,000; 19.14 MB
  
• 
  DETAIL OF PROW OF CONTROL GALLERY FOR RING-GATE SPILLWAY. VIEW TO NORTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-30.tif 3,963 × 5,000; 18.9 MB
  
• 
  DETAIL OF PROW OF CONTROL GALLERY FOR RING-GATE SPILLWAY. VIEW TO NORTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-31.tif 4,013 × 5,000; 19.14 MB
  
• 
  DETAIL OF RING GATE HEIGHT GAUGING DEVICE IN RING GATE CONTROL GALLERY, FROM SPIRAL STAIRCASE. VIEW TO SOUTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-55.tif 3,995 × 5,000; 19.05 MB
  
• 
  DETAIL OF SLIDE GATE CONTROL FOR RING GATE SPILLWAY IN RING GATE CONTROL GALLERY. VIEW TO SOUTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-54.tif 4,042 × 5,000; 19.28 MB
  
• 
  DETAIL OF SPIRAL STAIRCASE BETWEEN GALLERIES 4 AND 5. VIEW TO SOUTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-49.tif 3,969 × 5,000; 18.93 MB
  
• 
  DETAIL OF STEEL RING AND MORNING GLORY SPILLWAY FOR OUTLET TUNNEL. VIEW TO SOUTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-33.tif 5,000 × 3,943; 18.8 MB
  
• 
  DETAIL OF TEMPERATURE MONITOR PANEL LOCATED IN VALVEHOUSE FOR NEEDLE VALVE OUTLET WORKS ON GALLERY 2. VIEW TO EAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-46.tif 4,014 × 5,000; 19.14 MB
  
• 
  DETAIL OF TEMPERATURE MONITOR PANEL NEAR MACHINERY CHAMBER ON GALLERY 4. VIEW TO SOUTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-51.tif 3,988 × 5,000; 19.02 MB
  
• 
  DETAIL OF TEMPERATURE MONITOR PANEL NEAR UPPER BALCONY IN INSPECTION GALLERY 3. VIEW TO NORTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-48.tif 5,000 × 3,958; 18.88 MB
  
• 
  DETAIL OF UPSTREAM FACE ON DAM, SHOWING PARAPET WALL. VIEW TO WEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-14.tif 5,000 × 4,020; 19.17 MB
  
• 
  DETAIL OF WALKWAY ON TOP OF CONTROL GALLERY FOR RING-GATE SPILLWAY. VIEW TO SOUTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-32.tif 5,000 × 4,015; 19.15 MB
  
• 
  DOWNSTREAM FACE OF DAM AND AFTERBAY, SHOWING OUTLET TUNNEL PORTAL AT LEFT. VIEW TO SOUTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-7.tif 4,014 × 5,000; 19.14 MB
  
• 
  EAST SIDE OF VALVEHOUSE, WITH INSPECTION GALLERY BALCONY IN LEFT FOREGROUND. VIEW TO SOUTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-13.tif 4,023 × 5,000; 19.19 MB
  
• 
  ELECTRICAL TRANSFORMER ROOM ON GALLERY 5 (HIGHEST GALLERY IN DAM. VIEW TO SOUTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-52.tif 4,023 × 5,000; 19.19 MB
  
• 
  ELEVATOR LOBBY ON GALLERY 1, SHOWING ELEVATOR CAB AND DOORS (LEFT) AND ELECTRIC LIGHT SWITCHES, CONDUITS AND JUNCTION BOXES (RIGHT). VIEW TO NORTH. - Owyhee Dam, Across Owyhee HAER ORE,23-NYS.V,1-35.tif 5,000 × 4,047; 19.3 MB
  
• 
  EMERGENCY SLIDE GATE HOISTS (MANUFACTURED BY JOSHUA HENDRY IRON WORKS, SAN FRANCISCO) FOR NEEDLE VALVE PENSTOCK IN MACHINERY CHAMBER ON GALLERY 2 (LOCATED AT B ON SITE PLAN). HAER ORE,23-NYS.V,1-37.tif 4,025 × 5,000; 19.2 MB
  
• 
  EMERGENCY SLIDE GATE HOISTS FOR NEEDLE VALVE PENSTOCKS IN MACHINERY CHAMBER ON GALLERY 2. VIEW TO WEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-38.tif 4,056 × 5,000; 19.34 MB
  
• 
  ENTRANCE TO TURRETHOUSE ON DOWNSTREAM PAPAPET WALL, SHOWING STAIRWAY SPIRALING DOWN TO INTERIOR GALLERIES. VIEW TO NORTH. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur HAER ORE,23-NYS.V,1-21.tif 4,021 × 5,000; 19.18 MB
  
• 
  HYDRAULIC OIL LINES, VALVES AND GAUGE FOR SLIDE GATE HOISTS IN MACHINERY CHAMBER FOR SLUICE GATE WORKS ON GALLERY 1. NOTE HYDRAULIC OIL TANK AT UPPER RIGHT AND SCHEMATIC DRAWING HAER ORE,23-NYS.V,1-40.tif 3,986 × 5,000; 19.01 MB
  
• 
  HYDRAULIC SLIDE GATE HOISTS (MANUFACTURED BY JOSHUA HENDRY IRON WORKS, SAN FRANCISCO) FOR POWER PENSTOCKS IN MACHINERY CHAMBER ON GALLERY 4 (LOCATED AT C ON SITE PLAN). VIEW TO HAER ORE,23-NYS.V,1-50.tif 3,989 × 5,000; 19.02 MB
  
• 
  INSPECTION GALLERY 1 (LOWEST GALLERY IN DAM). NOTE RUNOFF WATER GUTTER ALONG LEFT SIDE OF GALLERY FLOOR. VIEW TO EAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, HAER ORE,23-NYS.V,1-34.tif 4,014 × 5,000; 19.14 MB
  
• 
  INSPECTION GALLERY 3. VIEW TO NORTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-47.tif 5,000 × 3,932; 18.75 MB
  
• 
  K-1941 Owyhee Dam on Owyhee River, OR (22728745166).jpg 3,213 × 2,070; 5 MB
  
• 
  MACHINERY CHAMBER FOR SLUICE GATE OUTLET WORKS ON GALLERY 1 (LOCATED AT A ON SITE PLAN), SHOWING HYDRAULIC GATE HOIST (SIX, TOTAL, MANUFACTURED BY JOSHUA HENDRY IRON WORKS, SAN HAER ORE,23-NYS.V,1-36.tif 4,031 × 5,000; 19.22 MB
  
• 
  NORTH SIDE OF VALVEHOUSE. VIEW TO SOUTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-12.tif 4,066 × 5,000; 19.39 MB
  
• 
  OUTLET TUNNEL PORTAL AT DAM AFTERBAY. VIEW TO NORTHWEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-22.tif 5,000 × 4,030; 19.22 MB
  
• 
  OVERALL VIEW DOWNSTREAM OF DAM AND RESERVOIR (LAKE OWYHEE), WITH ACCESS ROAD ON EAST SHORE IN FOREGROUND. VIEW TO SOUTH. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, HAER ORE,23-NYS.V,1-5.tif 5,000 × 4,023; 19.19 MB
  
• 
  OVERALL VIEW UPSTREAM OF DAM AND OWYHEE RIVER. VIEW TO EAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-1.tif 5,000 × 4,030; 19.22 MB
  
• 
  OVERALL VIEW UPSTREAM OF DAM, SHOWING DAM CREST, WITH RINGGATE SPILLWAY FOR OUTLET TUNNEL AT RIGHT. VIEW TO NORTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, HAER ORE,23-NYS.V,1-3.tif 5,000 × 4,030; 19.22 MB
  
• 
  OVERALL VIEW UPSTREAM OF DAM, SHOWING DAM CREST, WITH RINGGATE SPILLWAY FOR OUTLET TUNNEL AT RIGHT. VIEW TO NORTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, HAER ORE,23-NYS.V,1-4.tif 5,000 × 4,054; 19.33 MB
  
• 
  OVERALL VIEW UPSTREAM OF DAM, SHOWING VALVEHOUSE, OUTLET TUNNEL PORTAL (LEFT) AND POWERHOUSE (RIGHT). VIEW TO SOUTH. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-2.tif 5,000 × 4,019; 19.17 MB
  
• 
  Owyhee Dam (Malheur County, Oregon scenic images) (malD0114).jpg 324 × 488; 29 KB
  
• 
  Owyhee Dam (Malheur County, Oregon scenic images) (malD0117a).jpg 488 × 324; 36 KB
  
• 
  Owyhee Dam (Malheur County, Oregon scenic images) (malD0118).jpg 324 × 488; 29 KB
  
• 
  Owyhee Dam (Malheur County, Oregon scenic images) (malDA0002).jpg 488 × 324; 30 KB
  
• 
  Owyhee Dam crest.jpg 736 × 943; 102 KB
  
• 
  Owyhee Dam Light (Malheur County, Oregon scenic images) (malDA0157).jpg 324 × 488; 16 KB
  
• 
  Owyhee Dam near Nyssa, Oregon (3388048574).jpg 4,345 × 2,703; 1.49 MB
  
• 
  Owyhee Dam side view.jpg 757 × 962; 155 KB
  
• 
  Owyhee Dam spillway.jpg 759 × 950; 120 KB
  
• 
  Owyhee Dam.jpg 751 × 593; 93 KB
  
• 
  Owyhee Reservoir (230355691).jpeg 2,048 × 1,365; 812 KB
  
• 
  Photographic copy of historic photo, April 14, 1936 (original print filed in Record Group 115, National Archives, Washington, D.C.). AFTER EXAMINATION OF ALL THE FEATURES OF HAER ORE,23-NYS.V,1-137.tif 5,000 × 4,023; 19.19 MB
  
• 
  Photographic copy of historic photo, April 16, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). MIXING AND SCREENING PLANT FROM POINT NO. 1, HAER ORE,23-NYS.V,1-89.tif 5,000 × 4,092; 19.51 MB
  
• 
  Photographic copy of historic photo, April 18, 1929 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM GASOLINE INTER-URBAN CAR USED FOR HAER ORE,23-NYS.V,1-66.tif 5,000 × 4,002; 19.09 MB
  
• 
  Photographic copy of historic photo, April 19, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-RESISTANCE RECORDING EQUIPMENT. HAER ORE,23-NYS.V,1-126.tif 3,984 × 5,000; 19 MB
  
• 
  Photographic copy of historic photo, April 19, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). SPILLWAY RING GATE, OWYHEE DAM. - Owyhee HAER ORE,23-NYS.V,1-136.tif 5,000 × 3,941; 18.79 MB
  
• 
  Photographic copy of historic photo, April 24, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). SKELETON FORM FOR RING GATE STRUCTURE BEING HAER ORE,23-NYS.V,1-128.tif 5,000 × 3,984; 19 MB
  
• 
  Photographic copy of historic photo, April 25, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). UPSTREAM FACE OF OWYHEE DAM FROM POINT NO. HAER ORE,23-NYS.V,1-111.tif 5,000 × 4,077; 19.44 MB
  
• 
  Photographic copy of historic photo, April 27, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). WEST ROAD TO TOP OF OWYHEE DAM BEING HAER ORE,23-NYS.V,1-70.tif 5,000 × 4,009; 19.12 MB
  
• 
  Photographic copy of historic photo, April 5, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). INSTALLING INVAR METER IN PANEL NO. 4, HAER ORE,23-NYS.V,1-119.tif 3,976 × 5,000; 18.96 MB
  
• 
  Photographic copy of historic photo, April 5, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). INVAR VOLUME METER IN PANEL NO. 3, OWYHEE HAER ORE,23-NYS.V,1-120.tif 4,061 × 5,000; 19.37 MB
  
• 
  Photographic copy of historic photo, April 5, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). INVAR VOLUME METER, PANEL NO. 3, OWYHEE DAM. HAER ORE,23-NYS.V,1-118.tif 4,020 × 5,000; 19.17 MB
  
• 
  Photographic copy of historic photo, August 11, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-SPACING STEEL REINFORCING BARS HAER ORE,23-NYS.V,1-116.tif 5,000 × 4,062; 19.37 MB
  
• 
  Photographic copy of historic photo, August 14, 1928, (original print filed in Record Group 115, National Archives, Washington, D.C.). LOOKING UPSTREAM AT OWHYEE DAMSITE FROM HAER ORE,23-NYS.V,1-60.tif 5,000 × 3,966; 18.91 MB
  
• 
  Photographic copy of historic photo, August 20, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). PART OF GOVERNMENT CAMP AT OWYHEE, OREGON; HAER ORE,23-NYS.V,1-71.tif 5,000 × 4,016; 19.15 MB
  
• 
  Photographic copy of historic photo, December 1, 1929 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-CABLEWAY AND TOWER TRAVEL DRUMS HAER ORE,23-NYS.V,1-93.tif 5,000 × 3,955; 18.86 MB
  
• 
  Photographic copy of historic photo, December 21, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). DELIVERING B C. Y. OF CONCRETE TO GLORY HAER ORE,23-NYS.V,1-104.tif 5,000 × 4,011; 19.13 MB
  
• 
  Photographic copy of historic photo, December 26, 1929 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-LOADING CAR FROM CABLEWAY SKIP HAER ORE,23-NYS.V,1-94.tif 3,981 × 5,000; 18.99 MB
  
• 
  Photographic copy of historic photo, December 27, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM SLUICE GATES BEING SET INTO HAER ORE,23-NYS.V,1-117.tif 3,977 × 5,000; 18.97 MB
  
• 
  Photographic copy of historic photo, December 27, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM UNDER CONSTRUCTION, FROM HAER ORE,23-NYS.V,1-105.tif 5,000 × 3,995; 19.05 MB
  
• 
  Photographic copy of historic photo, December 29, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-DETAIL OF PARAPETS, PANEL 13, HAER ORE,23-NYS.V,1-110.tif 5,000 × 4,005; 19.1 MB
  
• 
  Photographic copy of historic photo, December 30, 1929 (original print filed in Record Group 115, National Archives, Washington, D.C.). PORTAL OF ENTRANCE ADIT TO OWHYEE DAM. - HAER ORE,23-NYS.V,1-80.tif 4,048 × 5,000; 19.31 MB
  
• 
  Photographic copy of historic photo, December 8, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM GETTING READY TO POUR CONCRETE HAER ORE,23-NYS.V,1-103.tif 5,000 × 4,003; 19.09 MB
  
• 
  Photographic copy of historic photo, February 17, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-HIGH PRESSURE GROUTING HAER ORE,23-NYS.V,1-84.tif 5,000 × 3,982; 18.99 MB
  
• 
  Photographic copy of historic photo, January 20, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-CONCRETE MIXING PLANT HAER ORE,23-NYS.V,1-86.tif 3,945 × 5,000; 18.81 MB
  
• 
  Photographic copy of historic photo, July 17, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). CROWD ASSEMBLING FOR DEDICATION OF OWYHEE HAER ORE,23-NYS.V,1-140.tif 5,000 × 4,026; 19.2 MB
  
• 
  Photographic copy of historic photo, July 19, 1929 (original print filed in Record Group 115, National Archives, Washington, D.C.). HEADQUARTERS OFFICES, CAMP OWYHEE DAMSITE. - HAER ORE,23-NYS.V,1-68.tif 5,000 × 3,949; 18.83 MB
  
• 
  Photographic copy of historic photo, July 22, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-INNER CONCRETE FORM READY FOR HAER ORE,23-NYS.V,1-131.tif 5,000 × 3,959; 18.88 MB
  
• 
  Photographic copy of historic photo, July 29, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). ELECTRIC BROOM CLEANING SURFACE OF CONCRETE, HAER ORE,23-NYS.V,1-107.tif 5,000 × 3,985; 19 MB
  
• 
  Photographic copy of historic photo, July 6, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). SHEA'S CAMP, PORTAL BUILDINGS AND DUMP, TUNNEL HAER ORE,23-NYS.V,1-73.tif 5,000 × 4,086; 19.49 MB
  
• 
  Photographic copy of historic photo, June 1, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). MIXING PLANT FOR OWYHEE DAM. - Owyhee Dam, HAER ORE,23-NYS.V,1-87.tif 5,000 × 3,979; 18.98 MB
  
• 
  Photographic copy of historic photo, June 16, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-CATWALK AT 2500 FOOT ELEVATION, HAER ORE,23-NYS.V,1-114.tif 5,000 × 4,000; 19.08 MB
  
• 
  Photographic copy of historic photo, June 25, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). CEMENT AGGREGATE AND WATER CONTROLS AT OWYHEE HAER ORE,23-NYS.V,1-88.tif 5,000 × 4,000; 19.08 MB
  
• 
  Photographic copy of historic photo, June 25, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). CONNOLLY CAMP, TUNNEL NO. 1 INLET. - Owyhee HAER ORE,23-NYS.V,1-72.tif 5,000 × 4,007; 19.11 MB
  
• 
  Photographic copy of historic photo, June 3, 1927, (original print filed in Record Group 115, National Archives, Washington, D.C.). CAMP SITE AT OWYHEE DAM, TAKEN FROM HAER ORE,23-NYS.V,1-61.tif 5,000 × 4,012; 19.13 MB
  
• 
  Photographic copy of historic photo, June 3, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). MAKING FINAL PARAPET POURS IN OWYHEE DAM. - HAER ORE,23-NYS.V,1-113.tif 5,000 × 4,034; 19.24 MB
  
• 
  Photographic copy of historic photo, June 30, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM UNDER CONSTRUCTION; RING GATE HAER ORE,23-NYS.V,1-129.tif 5,000 × 4,047; 19.3 MB
  
• 
  Photographic copy of historic photo, March 1, 1928, (original print filed in Record Group 115, National Archives, Washington, D.C.). OFFICE BUILDING AT OWYHEE DAM SITE. - Owyhee HAER ORE,23-NYS.V,1-62.tif 5,000 × 4,054; 19.33 MB
  
• 
  Photographic copy of historic photo, March 21, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAMSITE-LOOKING SOUTH FROM WITHIN THE HAER ORE,23-NYS.V,1-85.tif 4,000 × 5,000; 19.08 MB
  
• 
  Photographic copy of historic photo, March 26, 1927 (original print filed in Record Group 115, National Archives, Washington, D.C.). DRILLING HOLE A-10. LOWER OWYHEE DAMSITE. - HAER ORE,23-NYS.V,1-75.tif 4,045 × 5,000; 19.29 MB
  
• 
  Photographic copy of historic photo, March 26, 1927 (original print filed in Record Group 115, National Archives, Washington, D.C.). FLOATING DRILL RIG ON HOLE B-1. LOWER OWYHEE HAER ORE,23-NYS.V,1-74.tif 3,997 × 5,000; 19.06 MB
  
• 
  Photographic copy of historic photo, March 26, 1927 (original print filed in Record Group 115, National Archives, Washington, D.C.). STRIPPING EAST CANYON WALL OF LOOSE ROCK. - HAER ORE,23-NYS.V,1-76.tif 4,060 × 5,000; 19.36 MB
  
• 
  Photographic copy of historic photo, May 20, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-MIXING AND SCREENING PLANT IN HAER ORE,23-NYS.V,1-90.tif 5,000 × 3,981; 18.99 MB
  
• 
  Photographic copy of historic photo, May 22, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-LOADING 9 CUBIC-YARD CONCRETE HAER ORE,23-NYS.V,1-95.tif 4,069 × 5,000; 19.41 MB
  
• 
  Photographic copy of historic photo, May 7, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-COOLING SYSTEM OVER GALLERY FORMS. HAER ORE,23-NYS.V,1-124.tif 5,000 × 4,018; 19.16 MB
  
• 
  Photographic copy of historic photo, May 7, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-TRIANGULAR STRAIN METER AROUND PIPE HAER ORE,23-NYS.V,1-125.tif 3,934 × 5,000; 18.76 MB
  
• 
  Photographic copy of historic photo, May 7, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-UPPER CONTRACTION JOINT SEAL AND HAER ORE,23-NYS.V,1-121.tif 5,000 × 3,965; 18.91 MB
  
• 
  Photographic copy of historic photo, November 17, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). SPILLWAY RING GATE STRUCTURE, OWYHEE DAM HAER ORE,23-NYS.V,1-135.tif 5,000 × 4,015; 19.15 MB
  
• 
  Photographic copy of historic photo, November 20, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). CONCRETE BEING DUMPED INTO 8 C. Y. HAER ORE,23-NYS.V,1-101.tif 5,000 × 3,960; 18.89 MB
  
• 
  Photographic copy of historic photo, November 20, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). LOOKING SOUTH AT OWYHEE DAM UNDER HAER ORE,23-NYS.V,1-99.tif 5,000 × 4,046; 19.3 MB
  
• 
  Photographic copy of historic photo, November 20, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). MOVING FORMS ON OWYHEE DAM, SHOWING ALSO HAER ORE,23-NYS.V,1-100.tif 4,025 × 5,000; 19.2 MB
  
• 
  Photographic copy of historic photo, NOvember 20, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-CONCRETE BUCKET DUMPING IN HAER ORE,23-NYS.V,1-102.tif 5,000 × 4,027; 19.2 MB
  
• 
  Photographic copy of historic photo, November 21, 1929 (original print filed in Record Group 115, National Archives, Washington, D.C.). FROM PROGRESS POINT NO. 10; UPSTREAM HAER ORE,23-NYS.V,1-82.tif 5,000 × 3,969; 18.93 MB
  
• 
  Photographic copy of historic photo, October 10, 1928 (original print filed in Record Group 115, National Archives, Washington, D.C.). DRIVING PILING FOR DERRICK BRIDGE. ROAD TO HAER ORE,23-NYS.V,1-77.tif 5,000 × 4,034; 19.24 MB
  
• 
  Photographic copy of historic photo, October 10, 1928 (original print filed in Record Group 115, National Archives, Washington, D.C.). WITHIN THE 9X9 HEADING OF SPILLWAY TUNNEL, HAER ORE,23-NYS.V,1-78.tif 5,000 × 3,995; 19.05 MB
  
• 
  Photographic copy of historic photo, October 10, 1928, (original print filed in Record Group 115, National Archives, Washington, D.C.). LOOKING NORTH OVER GOVERNMENT CAMP AT HAER ORE,23-NYS.V,1-63.tif 5,000 × 4,013; 19.14 MB
  
• 
  Photographic copy of historic photo, October 17, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM, SHOWING SCHEME OF PANEL HAER ORE,23-NYS.V,1-97.tif 5,000 × 4,000; 19.08 MB
  
• 
  Photographic copy of historic photo, October 22, 1928 (original print filed in Record Group 115, National Archives, Washington, D.C.). SINKING SPILLWAY SHAFT, OWYHEE DAM. - HAER ORE,23-NYS.V,1-79.tif 5,000 × 3,955; 18.86 MB
  
• 
  Photographic copy of historic photo, October 28, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-PENSTOCK GATES, LINING AND HAER ORE,23-NYS.V,1-115.tif 5,000 × 4,043; 19.28 MB
  
• 
  Photographic copy of historic photo, September 29, 1929 (original print filed in Record Group 115, National Archives, Washington, D.C.). LIDGERWOOD CABLEWAY FROM TAIL TOWER TO HAER ORE,23-NYS.V,1-91.tif 5,000 × 4,014; 19.14 MB
  
• 
  Photographic copy of historic photo, September 29, 1929 (original print filed in Record Group 115, National Archives, Washington, D.C.). PERMEABILITY TEST BLOCK OF CONCRETE HAER ORE,23-NYS.V,1-127.tif 5,000 × 4,012; 19.13 MB
  
• 
  Photographic copy of historic photo, September 9, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). WEST KEYWAY OF OWYHEE DAM BEING DIAMOND HAER ORE,23-NYS.V,1-81.tif 4,038 × 5,000; 19.26 MB
  
• 
  Photographic copy of historic photo, September, 1936 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE. GLORY HOLE. - Owyhee Dam, Across HAER ORE,23-NYS.V,1-138.tif 5,000 × 3,962; 18.89 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWHEE DAM; 60 X 12 SPILLWAY HAER ORE,23-NYS.V,1-153.tif 5,000 × 3,950; 18.84 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM, PENSTOCK GATE HAER ORE,23-NYS.V,1-171.tif 5,000 × 3,980; 18.98 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; 60 X 12 SPILLWAY HAER ORE,23-NYS.V,1-154.tif 5,000 × 4,036; 19.25 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; EMERGENCY GATE AND HAER ORE,23-NYS.V,1-168.tif 5,000 × 4,026; 19.2 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; PARAPET AND ROADWAY HAER ORE,23-NYS.V,1-146.tif 5,000 × 4,005; 19.1 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; PLAN, ELEVATION AND HAER ORE,23-NYS.V,1-145.tif 5,000 × 4,011; 19.13 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; SLUICE GATE HAER ORE,23-NYS.V,1-163.tif 5,000 × 4,010; 19.12 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; SLUICE OUTLET HAER ORE,23-NYS.V,1-164.tif 5,000 × 3,933; 18.76 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; SPILLWAY CREST HAER ORE,23-NYS.V,1-151.tif 5,000 × 3,865; 18.43 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1928 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; TYPICAL SECTION; HAER ORE,23-NYS.V,1-173.tif 5,000 × 4,005; 19.1 MB
  
• 
  Photographic copy of original construction drawing dated April 10, 1929 (from Record Group 115, Denver, Branch of the National Archives, Denver). OWYHEE DAM; DAM AND SPILLWAY HAER ORE,23-NYS.V,1-144.tif 5,000 × 4,027; 19.2 MB
  
• 
  Photographic copy of original construction drawing dated April 12, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; GALLERY-ENTRANCE HAER ORE,23-NYS.V,1-148.tif 5,000 × 4,017; 19.16 MB
  
• 
  Photographic copy of original construction drawing dated April 2, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; GALLERY AND ADIT HAER ORE,23-NYS.V,1-160.tif 5,000 × 4,018; 19.16 MB
  
• 
  Photographic copy of original construction drawing dated April 20, 1927 (from Record Group 115, Denver Branch of the National Archives, Denver). FIVE ROOM COTTAGE; ELEVATIONS HAER ORE,23-NYS.V,1-143.tif 5,000 × 3,829; 18.26 MB
  
• 
  Photographic copy of original construction drawing dated August 22, 1927 (from Record Group 115, Denver Branch of the National Archives, Denver). TEMPORARY OFFICE BUILDING; HAER ORE,23-NYS.V,1-141.tif 5,000 × 4,013; 19.14 MB
  
• 
  Photographic copy of original construction drawing dated August 25, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; COOLING SYSTEM HAER ORE,23-NYS.V,1-178.tif 5,000 × 4,050; 19.31 MB
  
• 
  Photographic copy of original construction drawing dated August 27, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). TUNNEL NO. 1 CONTROLLING WORKS HAER ORE,23-NYS.V,1-192.tif 5,000 × 4,011; 19.13 MB
  
• 
  Photographic copy of original construction drawing dated December 10, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). TUNNEL NO.1 CONTROLLING HAER ORE,23-NYS.V,1-189.tif 5,000 × 4,036; 19.25 MB
  
• 
  Photographic copy of original construction drawing dated December 14, 1929 (from Record Group 115, Denver Branch of the National Archives, Denver). TUNNEL NO. 1; 16-7 DIAMETER HAER ORE,23-NYS.V,1-191.tif 5,000 × 3,994; 19.05 MB
  
• 
  Photographic copy of original construction drawing dated February 10, 1933 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; LOCATION OF HAER ORE,23-NYS.V,1-176.tif 5,000 × 4,049; 19.31 MB
  
• 
  Photographic copy of original construction drawing dated February 3, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; DRAINAGE HAER ORE,23-NYS.V,1-158.tif 5,000 × 3,989; 19.02 MB
  
• 
  Photographic copy of original construction drawing dated July 11, 1927 (from Record Group 115, Denver Branch of the National Archives, Denver). TEMPORARY COTTAGE PLAN AND HAER ORE,23-NYS.V,1-142.tif 5,000 × 3,985; 19 MB
  
• 
  Photographic copy of original construction drawing dated July 2, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; RADIAL INSPECTION HAER ORE,23-NYS.V,1-159.tif 5,000 × 3,968; 18.92 MB
  
• 
  Photographic copy of original construction drawing dated July, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). VOLUME CHANGE IN MASS CONCRETE; HAER ORE,23-NYS.V,1-179.tif 5,000 × 4,016; 19.15 MB
  
• 
  Photographic copy of original construction drawing dated June 15, 1931 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; CONCRETE COOLING HAER ORE,23-NYS.V,1-177.tif 5,000 × 4,053; 19.33 MB
  
• 
  Photographic copy of original construction drawing dated June 25, 1931 (from Record Group 115, Denver Branch of the National Archives, Denver). TURRET HOUSE; PLAN-ELEVATION AND HAER ORE,23-NYS.V,1-147.tif 5,000 × 4,002; 19.09 MB
  
• 
  Photographic copy of original construction drawing dated March 25, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; ELEVATOR-ENCLOSURES HAER ORE,23-NYS.V,1-162.tif 5,000 × 4,054; 19.33 MB
  
• 
  Photographic copy of original construction drawing dated March 27, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; ELEVATOR DOORS AND HAER ORE,23-NYS.V,1-161.tif 5,000 × 4,022; 19.18 MB
  
• 
  Photographic copy of original construction drawing dated March 27, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; UPLIFT PRESSURE HAER ORE,23-NYS.V,1-174.tif 5,000 × 4,022; 19.18 MB
  
• 
  Photographic copy of original construction drawing dated March 28, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). VOLUME CHANGE IN MASS CONCRETE; HAER ORE,23-NYS.V,1-180.tif 5,000 × 3,958; 18.88 MB
  
• 
  Photographic copy of original construction drawing dated March 28, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). VOLUME CHANGE IN MASS CONCRETE; HAER ORE,23-NYS.V,1-181.tif 5,000 × 4,022; 19.18 MB
  
• 
  Photographic copy of original construction drawing dated March 28, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). VOLUME CHANGE IN MASS CONCRETE; HAER ORE,23-NYS.V,1-182.tif 5,000 × 3,982; 18.99 MB
  
• 
  Photographic copy of original construction drawing dated March 28, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). VOLUME CHANGE IN MASS CONCRETE; HAER ORE,23-NYS.V,1-184.tif 5,000 × 4,003; 19.09 MB
  
• 
  Photographic copy of original construction drawing dated March 28, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). VOLUME CHANGE IN MASS CONCRETE; HAER ORE,23-NYS.V,1-185.tif 5,000 × 4,021; 19.18 MB
  
• 
  Photographic copy of original construction drawing dated March 28, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). VOLUME CHANGE IN MASS CONCRETE; HAER ORE,23-NYS.V,1-186.tif 5,000 × 4,029; 19.21 MB
  
• 
  Photographic copy of original construction drawing dated November 16, 1933 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM CONCRETE RESEARCH HAER ORE,23-NYS.V,1-183.tif 3,953 × 5,000; 18.85 MB
  
• 
  Photographic copy of original construction drawing dated November 7, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). TUNNEL NO. 1 CONTROLLING HAER ORE,23-NYS.V,1-190.tif 5,000 × 3,991; 19.03 MB
  
• 
  Photographic copy of original construction drawing dated October 10, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM-IRRIGATION OUTLET; HAER ORE,23-NYS.V,1-167.tif 5,000 × 4,016; 19.15 MB
  
• 
  Photographic copy of original construction drawing dated October 20, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). TUNNEL NO. 1 CONTROLLING HAER ORE,23-NYS.V,1-187.tif 5,000 × 4,010; 19.12 MB
  
• 
  Photographic copy of original construction drawing dated October 20, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). TUNNEL NO. 1 CONTROLLING HAER ORE,23-NYS.V,1-188.tif 5,000 × 4,025; 19.2 MB
  
• 
  Photographic copy of original construction drawing dated October 24, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). 48 INTERNAL DIFFERENTIAL HAER ORE,23-NYS.V,1-169.tif 5,000 × 3,952; 18.85 MB
  
• 
  Photographic copy of original construction drawing dated October 24, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). 48 INTERNAL DIFFERENTIAL HAER ORE,23-NYS.V,1-170.tif 5,000 × 3,984; 19 MB
  
• 
  Photographic copy of original construction drawing dated October 24, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). 60 x 12 RING GATE CONTROL; HAER ORE,23-NYS.V,1-152.tif 5,000 × 4,026; 19.2 MB
  
• 
  Photographic copy of original construction drawing dated October 24, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYEE DAM SPILLWAY; 60 X 12 HAER ORE,23-NYS.V,1-155.tif 5,000 × 4,031; 19.22 MB
  
• 
  Photographic copy of original construction drawing dated October 24, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM SPILLWAY; 60 X 12 HAER ORE,23-NYS.V,1-156.tif 5,000 × 3,959; 18.88 MB
  
• 
  Photographic copy of original construction drawing dated October 27, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; ELECTRICAL HAER ORE,23-NYS.V,1-175.tif 5,000 × 4,016; 19.15 MB
  
• 
  Photographic copy of original construction drawing dated October 31, 1932 (from Record Group 115, Denver Branch of the National Archives, Denver). TUNNEL NO. 1 CONTROLLING HAER ORE,23-NYS.V,1-193.tif 5,000 × 3,982; 18.99 MB
  
• 
  Photographic copy of original construction drawing dated September 13, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; IRRIGATION HAER ORE,23-NYS.V,1-165.tif 5,000 × 4,041; 19.27 MB
  
• 
  Photographic copy of original construction drawing dated September 18, 1927 (from Record Group 115, Denver Branch of the National Archives, Denver). DIVERSION AND SPILLWAY HAER ORE,23-NYS.V,1-149.tif 5,000 × 3,961; 18.89 MB
  
• 
  Photographic copy of original construction drawing dated September 19, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM AND SPILLWAY; HAER ORE,23-NYS.V,1-172.tif 5,000 × 3,999; 19.07 MB
  
• 
  Photographic copy of original construction drawing dated September 5, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM-IRRIGATION OUTLET HAER ORE,23-NYS.V,1-166.tif 5,000 × 3,996; 19.06 MB
  
• 
  POWERHOUSE (CONSTRUCTED IN 1984) BESIDE WEST ABUTMENT OF DAM. VIEW SOUTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-24.tif 3,998 × 5,000; 19.07 MB
  
• 
  REMAINS OF CONCRETE MIXING PLANT USED IN CONSTRUCTION OF DAM, LOCATED OF WEST BANK OF RIVER BELOW DAM. VIEW TO WEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-25.tif 5,000 × 3,980; 18.98 MB
  
• 
  RING-GATE SPILLWAY FOR OUTLET TUNNEL, WITH CONTROL GALLERY AT LEFT. VIEW TO SOUTH. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-27.tif 5,000 × 3,983; 19 MB
  
• 
  RING-GATE SPILLWAY FOR OUTLET TUNNEL, WITH CONTROL GALLERY AT LEFT. VIEW TO SOUTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-26.tif 5,000 × 4,021; 19.18 MB
  
• 
  RING-GATE SPILLWAY FOR OUTLET TUNNEL, WITH DOWNSTREAM APRON IN FOREGROUND AND UPSTREAM FACE OF DAM IN LEFT BACKGROUND. VIEW TO WEST. - Owyhee Dam, Across Owyhee River, Nyssa, HAER ORE,23-NYS.V,1-28.tif 5,000 × 3,992; 19.04 MB
  
• 
  RING-GATE SPILLWAY FOR OUTLET TUNNEL, WITH DOWNSTREAM APRON IN FOREGROUND. NOTE AIR RELEASE VENT FOR OUTLET TUNNEL IN CENTER FOREGROUND. VIEW TO SOUTHEAST. - Owyhee Dam, Across HAER ORE,23-NYS.V,1-29.tif 5,000 × 3,988; 19.02 MB
  
• 
  SPIRAL STAIRCASE LEADING INTO RING GATE CONTROL GALLERY. VIEW TO NORTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-53.tif 4,060 × 5,000; 19.36 MB
  
• 
  THREE-CYLINDER HYDRAULIC OIL PUMP (MANUFACTURED BY WORTHINGTON- PUMP AND MACHINERY COMPANY, HOLYOKE MASSACHUSETTS) IN MACHINERY CHAMBER FOR SLUICE GATE WORKS ON GALLERY 1. NOTE HAER ORE,23-NYS.V,1-39.tif 3,987 × 5,000; 19.01 MB
  
• 
  TURRETHOUSE ON DOWNSTREAM PARAPET WALL. VIEW TO NORTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-20.tif 4,028 × 5,000; 19.21 MB
  
• 
  TYPICAL LIGHT STANDARD ON DOWNSTREAM PARAPET WALL. VIEW TO WEST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-19.tif 4,007 × 5,000; 19.11 MB
  
• 
  VALVEHOUSE FOR NEED VALVE OUTLET WORKS ON GALLERY 2, SHOWING CONTROL PEDESTAL IN FOREGROUND AND NEEDLE VALVE AIR VENTS IN CENTER. VIEW TO WEST. - Owyhee Dam, Across Owyhee River HAER ORE,23-NYS.V,1-43.tif 3,996 × 5,000; 19.06 MB
  
• 
  VALVEHOUSE FOR NEEDLE VALVE OUTLET WORKS ON GALLERY 2, SHOWING NEEDLE VALVE CONTROL PEDESTALS (MANUFACTURED BY AMERICAN LOCOMOTIVE COMPANY) IN LEFT FOREGROUND AND RIGHT HAER ORE,23-NYS.V,1-41.tif 5,000 × 3,999; 19.07 MB
  
• 
  VALVEHOUSE FOR NEEDLE VALVE OUTLET WORKS ON GALLERY 2, SHOWING OVERHEAD SERVICE CRANE AT CENTER. NOTE NEEDLE VALVE AIR VENTS AND GAUGES AT RIGHT, NEXT TO CONTROL PEDESTAL. VIEW HAER ORE,23-NYS.V,1-42.tif 4,064 × 5,000; 19.38 MB
  
• 
  ENTRANCE PORTAL TO DAM INTERIOR GALLERY 1 AT WEST ABUTMENT OF DAM. VIEW TO SOUTHEAST. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR HAER ORE,23-NYS.V,1-23.tif 3,978 × 5,000; 18.97 MB
  
• 
  Photographic copy of historic photo, August 20, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). LOOKING EAST ACROSS OWYHEE DAM. NOTE HAER ORE,23-NYS.V,1-108.tif 4,115 × 5,000; 19.62 MB
  
• 
  Photographic copy of historic photo, August 20, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWHYEE DAM-PREPARING TO POUR CONCRETE IN HAER ORE,23-NYS.V,1-132.tif 5,000 × 4,000; 19.08 MB
  
• 
  Photographic copy of historic photo, August 25, 1930 (original print filed in Record Group 115, National Archives, Washington, D.C.). MEN'S DORMITORY AT OWYHEE DAM NEARING HAER ORE,23-NYS.V,1-69.tif 5,000 × 4,087; 19.49 MB
  
• 
  Photographic copy of historic photo, December 29, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.) OWYHEE DAM CONTRACTION JOINTS BETWEEN HAER ORE,23-NYS.V,1-109.tif 3,988 × 5,000; 19.02 MB
  
• 
  Photographic copy of historic photo, January 20, 1929, (original print filed in Record Group 315, National Archives, Washington, D.C.). CAMP AT OWYHEE DAMSITE GENERAL HAER ORE,23-NYS.V,1-65.tif 5,000 × 4,015; 19.15 MB
  
• 
  Photographic copy of historic photo, June 23, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM UNDER CONSTRUCTION; NOTE SPIRAL HAER ORE,23-NYS.V,1-106.tif 4,034 × 5,000; 19.24 MB
  
• 
  Photographic copy of historic photo, June 30, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM UNDER CONSTRUCTION; ALL STEEL FOR HAER ORE,23-NYS.V,1-130.tif 5,000 × 3,953; 18.85 MB
  
• 
  Photographic copy of historic photo, May 18, 1929, (original print filed in Record Group 115, National Archives, Washington, D.C.). CAMP AT OWYHEE, OREGON, LOOKING NORTH. - HAER ORE,23-NYS.V,1-67.tif 5,000 × 4,001; 19.08 MB
  
• 
  Photographic copy of historic photo, May 25, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). ONTARIO-NYSSA PUMP HOUSE. - Owyhee Dam, HAER ORE,23-NYS.V,1-139.tif 5,000 × 4,081; 19.46 MB
  
• 
  Photographic copy of historic photo, May 8, 1932 (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-STRAIN METER, MICROMETER AND CRACK HAER ORE,23-NYS.V,1-122.tif 5,000 × 3,981; 18.99 MB
  
• 
  Photographic copy of historic photo, May 8, 1932, (original print filed in Record Group 115, National Archives, Washington, D.C.). OWYHEE DAM-CARISON STRAIN METER, RESISTANCE HAER ORE,23-NYS.V,1-123.tif 4,034 × 5,000; 19.24 MB
  
• 
  Photographic copy of historic photo, November 17, 1931 (original print filed in Record Group 115, National Archives, Washington, D.C.). UPSTREAM FACE OF OWYHEE DAM, SHOWING HAER ORE,23-NYS.V,1-134.tif 5,000 × 3,984; 19 MB
  
• 
  Photographic copy of historic photo, November 21, 1929 (original print filed in Record Group 115, National Archives, Washington, D.C.). LIDGERWOOD CABLEWAY HEAD TOWER READY FOR HAER ORE,23-NYS.V,1-92.tif 4,038 × 5,000; 19.26 MB