Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Portland Harbor Surveys, Lower Willamette River, Summer 1961
During the summer of 1961, the Public Health Service and Oregon State Sanitary Authority cooperated in several water quality surveys on the lower Willamette River downstream of Oregon City. Sampling station locations were midstream at No. 1 - SP and S Bridge (R.M. 7.0); No. 2 - Steel Bridge (R.M. 12.0); No. 3 - Staff Jennings (R.M. 16.5). The three stations were sampled every two hours at midstream for a 24-hour period. Measurements were made at the surface, mid-depth, and bottom 1/ of dissolved oxygen, biochemical oxygen demand, sulfite waste liquor, pH, and temperature. The BOD and SWL were sampled at mid-depth only. River stage data was made available by the U. S. Weather Bureau which operates a recording water level gage in the Portland Harbor.
Portland Harbor Surveys, Lower Willamette River, Summer 1961
During the summer of 1961, the Public Health Service and Oregon State Sanitary Authority cooperated in several water quality surveys on the lower Willamette River downstream of Oregon City. Sampling station locations were midstream at No. 1 - SP and S Bridge (R.M. 7.0); No. 2 - Steel Bridge (R.M. 12.0); No. 3 - Staff Jennings (R.M. 16.5). The three stations were sampled every two hours at midstream for a 24-hour period. Measurements were made at the surface, mid-depth, and bottom 1/ of dissolved oxygen, biochemical oxygen demand, sulfite waste liquor, pH, and temperature. The BOD and SWL were sampled at mid-depth only. River stage data was made available by the U. S. Weather Bureau which operates a recording water level gage in the Portland Harbor.
Portland Harbor Surveys, Lower Willamette River, Summer 1961
1961
29 pages
Report
Keine Angabe
Englisch
Ross Island bridge, Willamette River, Portland
| Engineering Index Backfile | 1927
Willamette-Zentrum in Portland, USA
| Online Contents | 1980
St. Johns suspension bridge across Willamette river at Portland, Oregon
| Engineering Index Backfile | 1930
The broadway bridge over Willamette river, Portland, ore., with ball Bascule span
| Engineering Index Backfile | 1913