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Aerial view of construction of intercepting sewer along N Columbia Blvd from N Chase Ave and N Drummond Ave |
09/30/1948 |
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Columbia River outfall no. 1 |
07/05/1949 |
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Portland sewage disposal outfall unit no. 1 |
07/11/1949 |
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Portland sewage disposal construction of outfall unit no. 1 |
07/18/1949 |
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Portland sewage disposal facility site grading |
07/26/1949 |
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Portland sewage disposal facility laboratory |
07/27/1949 |
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Portland sewage treatment plant framing for administration building |
09/30/1949 |
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Men standing next to jeep at Portland sewage disposal monolithic concrete outfall sewer no. 1 |
12/16/1949 |
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Man welding framing for digester at Portland sewage treatment plant |
12/28/1949 |
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Portland sewage treatment plant settling tank construction |
12/28/1949 |
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Men constructing digester framing at Portland sewage treatment plant |
12/28/1949 |
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Columbia Blvd Wastewater Secondary Treatment Facilities irrigation piping |
01/28/1982 |
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Columbia Blvd Wastewater Secondary Treatment Facilities irrigation piping and thickener pump |
03/24/1982 |
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Columbia Blvd Wastewater Secondary Treatment Facilities irrigation piping |
03/24/1982 |
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Columbia Blvd Wastewater Secondary Treatment Facilities irrigation piping |
04/01/1982 |
