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Columbia Blvd Wastewater Secondary Treatment Facilities interior view of control room |
APF/26742 |
12/31/1984 |
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Man welding framing for digester at Portland sewage treatment plant |
AP/70992 |
12/28/1949 |
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Portland sewage treatment plant settling tank construction |
APF/26720 |
12/28/1949 |
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Men constructing digester framing at Portland sewage treatment plant |
AP/70972 |
12/28/1949 |
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Men standing next to jeep at Portland sewage disposal monolithic concrete outfall sewer no. 1 |
AP/70967 |
12/16/1949 |
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Portland sewage treatment plant framing for administration building |
AP/70954 |
09/30/1949 |
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Portland sewage disposal facility laboratory |
AP/70947 |
07/27/1949 |
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Portland sewage disposal facility site grading |
AP/70935 |
07/26/1949 |
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Portland sewage disposal construction of outfall unit no. 1 |
APF/26719 |
07/18/1949 |
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Portland sewage disposal outfall unit no. 1 |
APF/26718 |
07/11/1949 |
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Columbia River outfall no. 1 |
AP/70918 |
07/05/1949 |
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Aerial view of construction of intercepting sewer along N Columbia Blvd from N Chase Ave and N Drummond Ave |
APF/26717 |
09/30/1948 |
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Columbia Blvd Wastewater Secondary Treatment Facilities aerials of digester control building |
APF/26716 |
08/17/1984 |
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Columbia Blvd Wastewater Secondary Treatment Facilities drag chain, duct work, and sump pump at reactor |
APF/26715 |
06/11/1984 |
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Columbia Blvd Wastewater Secondary Treatment Facilities aerials |
APF/26714 |
01/25/1984 |
