More info . . .
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1115 |
7 June 1917 |
Fourth Lock Masonry: View looking southwest showing miter wall No. 5; pouring north half |
More info . . .
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1116 |
7 June 1917 |
Fourth Lock Masonry: South half of miter wall No. 6; details of form and anchorage |
More info . . .
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1117 |
7 June 1917 |
Fourth Lock Masonry: Miter wall No. 4; details of form and anchorage |
More info . . .
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1118 |
8 June 1917 |
Fourth Lock Masonry: Emptying culverts, south side; forms for entrance, below valve pit |
More info . . .
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1119 |
8 June 1917 |
Fourth Lock Masonry: Northwest widewall; placing concrete in top of block No. 258 |
More info . . .
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1120 |
8 June 1917 |
Fourth Lock Masonry: Northwest widewall; detail of form work in top of block No. 256 |
More info . . .
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1121 |
8 June 1917 |
Fourth Lock Masonry: Forms for miter wall No. 1 and view of recess for south leaf of gate No. 2 |
More info . . .
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1122 |
15 June 1917 |
Fourth Lock Masonry: Miter wall No. 4, looking south; reinforcement in north half |
More info . . .
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1123 |
15 June 1917 |
Fourth Lock Masonry: Emptying culverts, forms, west end, showing faulty bracing of center bulkhead |
More info . . .
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1124 |
15 June 1917 |
Fourth Lock Masonry: Finishing top of narrow wall block, showing details of steel forms |
More info . . .
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1125 |
15 June 1917 |
Fourth Lock Masonry: Top of widewall, block No. 256; forms, conduit, etc. |
More info . . .
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1126 |
29 June 1917 |
Fourth Lock Masonry: General view from east cofferdam, showing progress of work |
More info . . .
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1127 |
29 June 1917 |
Fourth Lock Masonry: General view of east end, showing forms for southeast widewall, block No. 107 |
More info . . .
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1128 |
13 July 1917 |
Fourth Lock Masonry: General view of lower valve pit |
More info . . .
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1129 |
13 July 1917 |
Fourth Lock Masonry: General view, west end; finishing north half of miter wall No. 1 |