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Apron construction |
12/31/1928 |
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Apron construction |
12/31/1928 |
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Apron excavation |
07/09/1928 |
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Apron excavation |
08/09/1928 |
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Apron excavation |
06/23/1928 |
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Bear Creek Falls |
05/10/1927 |
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Bench south side, elevation 930' |
06/20/1927 |
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Bent Brothers Railroad Trestle #1, looking towards bunkers |
06/20/1927 |
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Bridge building for Dam #1 site |
12/31/1927 |
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Bull Run Reserve, entrance |
11/15/1928 |
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Bull Run Reserve, entrance |
11/15/1928 |
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Bull Run Storage Project, Water Bureau Engineer Camp |
06/20/1927 |
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Butterfly valve |
08/12/1927 |
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Cement shed and gravel plant |
06/20/1927 |
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Cleaning bedrock |
08/19/1927 |
